configure: Drop redundant header check for d3d11.h
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [avbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --prefix=PREFIX          install in PREFIX [$prefix_default]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --enable-rpath           use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93   --enable-gpl             allow use of GPL code, the resulting libs
94                            and binaries will be under GPL [no]
95   --enable-version3        upgrade (L)GPL to version 3 [no]
96   --enable-nonfree         allow use of nonfree code, the resulting libs
97                            and binaries will be unredistributable [no]
98
99 Configuration options:
100   --disable-static         do not build static libraries [no]
101   --enable-shared          build shared libraries [no]
102   --enable-small           optimize for size instead of speed
103   --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104   --enable-gray            enable full grayscale support (slower color)
105   --disable-swscale-alpha  disable alpha channel support in swscale
106   --disable-all            disable building components, libraries and programs
107
108 Program options:
109   --disable-programs       do not build command line programs
110   --disable-avconv         disable avconv build
111   --disable-avplay         disable avplay build
112   --disable-avprobe        disable avprobe build
113   --disable-avserver       deprecated, does nothing
114
115 Component options:
116   --disable-doc            do not build documentation
117   --disable-pod2man        do not build manual pages
118   --disable-texi2html      do not build HTML documentation
119   --disable-avdevice       disable libavdevice build
120   --disable-avcodec        disable libavcodec build
121   --disable-avformat       disable libavformat build
122   --disable-avutil         disable libavutil build
123   --disable-swscale        disable libswscale build
124   --disable-avfilter       disable video filter support [no]
125   --disable-avresample     disable libavresample build [no]
126   --disable-pthreads       disable pthreads [auto]
127   --disable-w32threads     disable Win32 threads [auto]
128   --disable-network        disable network support [no]
129   --disable-dct            disable DCT code
130   --disable-error-resilience disable error resilience code
131   --disable-lsp            disable LSP code
132   --disable-lzo            disable LZO decoder code
133   --disable-mdct           disable MDCT code
134   --disable-rdft           disable RDFT code
135   --disable-fft            disable FFT code
136   --disable-faan           disable floating point AAN (I)DCT code
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176
177   Using any of the following switches will allow Libav to link to the
178   corresponding external library. All the components depending on that library
179   will become enabled, if all their other dependencies are met and they are not
180   explicitly disabled. E.g. --enable-libwavpack will enable linking to
181   libwavpack and allow the libwavpack encoder to be built, unless it is
182   specifically disabled with --disable-encoder=libwavpack.
183
184   Note that only the system libraries are auto-detected. All the other external
185   libraries must be explicitly enabled.
186
187   Also note that the following help text describes the purpose of the libraries
188   themselves, not all their features will necessarily be usable by Libav.
189
190   --enable-avisynth          video frameserver
191   --enable-avxsynth          Linux version of AviSynth
192   --enable-bzlib             bzip2 compression [autodetect]
193   --enable-frei0r            video filtering plugins
194   --enable-gnutls            crypto
195   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
196   --enable-libcdio           audio CD input
197   --enable-libdc1394         IEEE 1394/Firewire camera input
198   --enable-libdcadec         DCA audio decoding
199   --enable-libfaac           AAC audio encoding
200   --enable-libfdk-aac        AAC audio encoding/decoding
201   --enable-libfontconfig     font configuration and management
202   --enable-libfreetype       font rendering
203   --enable-libgsm            GSM audio encoding/decoding
204   --enable-libhdcd           HDCD decoding filter
205   --enable-libilbc           ILBC audio encoding/decoding
206   --enable-libjack           JACK audio sound server
207   --enable-libkvazaar        HEVC video encoding
208   --enable-libmp3lame        MP3 audio encoding
209   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210   --enable-libopencore-amrwb AMR-WB audio decoding
211   --enable-libopencv         computer vision
212   --enable-libopenh264       H.264 video encoding/decoding
213   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
214   --enable-libopus           Opus audio encoding/decoding
215   --enable-libpulse          Pulseaudio sound server
216   --enable-librtmp           RTMP streaming
217   --enable-libschroedinger   Dirac video encoding/decoding
218   --enable-libsnappy         snappy compression
219   --enable-libspeex          Speex audio encoding/decoding
220   --enable-libtheora         Theora video encoding/decoding
221   --enable-libtwolame        MP2 audio encoding
222   --enable-libvo-aacenc      AAC audio encoding
223   --enable-libvo-amrwbenc    AMR-WB audio encoding
224   --enable-libvorbis         Vorbis audio encoding/decoding
225   --enable-libvpx            VP* video encoding/decoding
226   --enable-libwavpack        Wavpack audio encoding/decoding
227   --enable-libwebp           WebP image encoding/decoding
228   --enable-libx264           H.264 video encoding
229   --enable-libx265           HEVC video encoding
230   --enable-libxavs           Chinese AVS video encoding
231   --enable-libxcb            X window system protocol communication
232   --enable-libxcb-shm        X11 shm communication [auto]
233   --enable-libxcb-xfixes     X11 mouse rendering [auto]
234   --enable-libxvid           MPEG-4 ASP video encoding
235   --enable-openssl           crypto
236   --enable-zlib              compression [autodetect]
237
238   The following libraries provide various hardware acceleration features:
239   --enable-cuda    Nvidia CUDA (dynamically linked)
240   --enable-cuvid   Nvidia CUVID video decode acceleration
241   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
243   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
244   --enable-libnpp  Nvidia CUDA processing
245   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246   --enable-nvenc   Nvidia video encoding
247   --enable-omx     OpenMAX IL
248   --enable-omx-rpi OpenMAX IL for Raspberry Pi
249   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
250   --enable-vda     Apple Video Decode Acceleration [auto]
251   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254   --arch=ARCH              select architecture [$arch]
255   --cpu=CPU                select the minimum required CPU (affects
256                            instruction selection, may crash on older CPUs)
257   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
258   --enable-cross-compile   assume a cross-compiler is used
259   --sysroot=PATH           root of cross-build tree
260   --sysinclude=PATH        location of cross-build system headers
261   --target-os=OS           compiler targets OS [$target_os]
262   --target-exec=CMD        command to run executables on target
263   --target-path=DIR        path to view of build directory on target
264   --target-samples=DIR     path to samples directory on target
265   --toolchain=NAME         set tool defaults according to NAME
266   --nm=NM                  use nm tool
267   --ar=AR                  use archive tool AR [$ar_default]
268   --as=AS                  use assembler AS [$as_default]
269   --cc=CC                  use C compiler CC [$cc_default]
270   --objcc=OCC              use ObjC compiler OCC [$cc_default]
271   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
272   --ld=LD                  use linker LD
273   --x86asmexe=X86ASM       use x86 assembler X86ASM
274   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
275   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276   --host-cc=HOSTCC         use host C compiler HOSTCC
277   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
278   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279   --host-ld=HOSTLD         use host linker HOSTLD
280   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
281   --host-libs=HLIBS        use libs HLIBS when linking for host
282   --host-os=OS             compiler host OS [$target_os]
283   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
284   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
285   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288   --extra-libs=ELIBS       add ELIBS [$ELIBS]
289   --extra-version=STRING   version string suffix []
290   --optflags=OPTFLAGS      override optimization-related compiler flags
291   --enable-pic             build position-independent code
292   --enable-thumb           compile for Thumb instruction set
293   --enable-lto             use link-time optimization
294   --env="ENV=override"     override the environment variables
295
296 Advanced options (experts only):
297   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
298   --custom-allocator=NAME  use a supported custom allocator
299   --disable-symver         disable symbol versioning
300   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301   --disable-safe-bitstream-reader
302                            disable buffer boundary checking in bitreaders
303                            (faster, but may crash)
304   --enable-sram            allow use of on-chip SRAM
305
306 Optimization options (experts only):
307   --disable-asm            disable all assembly optimizations
308   --disable-altivec        disable AltiVec optimizations
309   --disable-vsx            disable VSX optimizations
310   --disable-power8         disable POWER8 optimizations
311   --disable-amd3dnow       disable 3DNow! optimizations
312   --disable-amd3dnowext    disable 3DNow! extended optimizations
313   --disable-mmx            disable MMX optimizations
314   --disable-mmxext         disable MMXEXT optimizations
315   --disable-sse            disable SSE optimizations
316   --disable-sse2           disable SSE2 optimizations
317   --disable-sse3           disable SSE3 optimizations
318   --disable-ssse3          disable SSSE3 optimizations
319   --disable-sse4           disable SSE4 optimizations
320   --disable-sse42          disable SSE4.2 optimizations
321   --disable-avx            disable AVX optimizations
322   --disable-xop            disable XOP optimizations
323   --disable-fma3           disable FMA3 optimizations
324   --disable-fma4           disable FMA4 optimizations
325   --disable-avx2           disable AVX2 optimizations
326   --disable-armv5te        disable armv5te optimizations
327   --disable-armv6          disable armv6 optimizations
328   --disable-armv6t2        disable armv6t2 optimizations
329   --disable-vfp            disable VFP optimizations
330   --disable-neon           disable NEON optimizations
331   --disable-inline-asm     disable use of inline assembly
332   --disable-x86asm         disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335   --disable-debug          disable debugging symbols
336   --enable-debug=LEVEL     set the debug level [$debuglevel]
337   --disable-optimizations  disable compiler optimizations
338   --enable-extra-warnings  enable more compiler warnings
339   --samples=PATH           location of test samples for FATE, if not set use
340                            \$LIBAV_SAMPLES at make invocation time.
341   --enable-neon-clobber-test check NEON registers for clobbering (should be
342                            used only for debugging purposes)
343   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344                            should be used only for debugging purposes)
345   --enable-random          randomly enable/disable components
346   --disable-random
347   --enable-random=LIST     randomly enable/disable specific components or
348   --disable-random=LIST    component groups. LIST is a comma-separated list
349                            of NAME[:PROB] entries where NAME is a component
350                            (group) and PROB the probability associated with
351                            NAME (default 0.5).
352   --random-seed=VALUE      seed value for --enable/disable-random
353   --disable-valgrind-backtrace do not print a backtrace under Valgrind
354                            (only applies to --disable-optimizations builds)
355   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
356                            in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360   exit 0
361 }
362
363 quotes='""'
364
365 log(){
366     echo "$@" >> $logfile
367 }
368
369 log_file(){
370     log BEGIN $1
371     i=1
372     while read line; do
373         printf '%5s   %s\n' "${i}" "${line}"
374         i=$(($i+1))
375     done < $1 >> $logfile
376     log END $1
377 }
378
379 echolog(){
380     log "$@"
381     echo "$@"
382 }
383
384 warn(){
385     log "WARNING: $*"
386     WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390     echolog "$@"
391     cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git.  If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397     if disabled logging; then
398         cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402     else
403         cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407     fi
408     exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421     echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425     v=$(echo "$1" | sed "s/'/'\\\\''/g")
426     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427     echo "$v"
428 }
429
430 cleanws(){
431     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
432 }
433
434 filter(){
435     pat=$1
436     shift
437     for v; do
438         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439     done
440 }
441
442 filter_out(){
443     pat=$1
444     shift
445     for v; do
446         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447     done
448 }
449
450 map(){
451     m=$1
452     shift
453     for v; do eval $m; done
454 }
455
456 add_suffix(){
457     suffix=$1
458     shift
459     for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463     value=$1
464     shift
465     for var in $*; do
466         eval $var=$value
467     done
468 }
469
470 set_weak(){
471     value=$1
472     shift
473     for var; do
474         eval : \${$var:=$value}
475     done
476 }
477
478 sanitize_var_name(){
479     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483     var=$1
484     shift
485     eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489     eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493     for pvar in $*; do
494         eval level=\${${pvar}_level:=0}
495         eval ${pvar}_${level}="\$$pvar"
496         eval ${pvar}_level=$(($level+1))
497     done
498 }
499
500 popvar(){
501     for pvar in $*; do
502         eval level=\${${pvar}_level:-0}
503         test $level = 0 && continue
504         eval level=$(($level-1))
505         eval $pvar="\${${pvar}_${level}}"
506         eval ${pvar}_level=$level
507         eval unset ${pvar}_${level}
508     done
509 }
510
511 enable(){
512     set_all yes $*
513 }
514
515 disable(){
516     set_all no $*
517 }
518
519 enable_weak(){
520     set_weak yes $*
521 }
522
523 disable_weak(){
524     set_weak no $*
525 }
526
527 enable_sanitized(){
528     for var; do
529         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530     done
531 }
532
533 disable_sanitized(){
534     for var; do
535         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536     done
537 }
538
539 do_enable_deep(){
540     for var; do
541         enabled $var && continue
542         eval sel="\$${var}_select"
543         eval sgs="\$${var}_suggest"
544         pushvar var sgs
545         enable_deep $sel
546         popvar sgs
547         enable_deep_weak $sgs
548         popvar var
549     done
550 }
551
552 enable_deep(){
553     do_enable_deep $*
554     enable $*
555 }
556
557 enable_deep_weak(){
558     for var; do
559         disabled $var && continue
560         pushvar var
561         do_enable_deep $var
562         popvar var
563         enable_weak $var
564     done
565 }
566
567 enabled(){
568     test "${1#!}" = "$1" && op== || op=!=
569     eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573     test "${1#!}" = "$1" && op== || op=!=
574     eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578     for opt; do
579         enabled $opt || return 1
580     done
581 }
582
583 disabled_all(){
584     for opt; do
585         disabled $opt || return 1
586     done
587 }
588
589 enabled_any(){
590     for opt; do
591         enabled $opt && return 0
592     done
593 }
594
595 disabled_any(){
596     for opt; do
597         disabled $opt && return 0
598     done
599     return 1
600 }
601
602 set_default(){
603     for opt; do
604         eval : \${$opt:=\$${opt}_default}
605     done
606 }
607
608 is_in(){
609     value=$1
610     shift
611     for var in $*; do
612         [ $var = $value ] && return 0
613     done
614     return 1
615 }
616
617 check_deps(){
618     for cfg; do
619         enabled ${cfg}_checking && die "Circular dependency for $cfg."
620         disabled ${cfg}_checking && continue
621         enable ${cfg}_checking
622
623         eval dep_all="\$${cfg}_deps"
624         eval dep_any="\$${cfg}_deps_any"
625         eval dep_con="\$${cfg}_conflict"
626         eval dep_sel="\$${cfg}_select"
627         eval dep_sgs="\$${cfg}_suggest"
628         eval dep_ifa="\$${cfg}_if"
629         eval dep_ifn="\$${cfg}_if_any"
630
631         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637         enabled_all  $dep_all || disable $cfg
638         enabled_any  $dep_any || disable $cfg
639         disabled_all $dep_con || disable $cfg
640         disabled_any $dep_sel && disable $cfg
641
642         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645             # filter out library deps, these do not belong in extralibs
646             is_in $dep $LIBRARY_LIST && continue
647             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648         done
649
650         disable ${cfg}_checking
651     done
652 }
653
654 print_config(){
655     pfx=$1
656     files=$2
657     shift 2
658     map 'eval echo "$v \${$v:-no}"' "$@" |
659     awk "BEGIN { split(\"$files\", files) }
660         {
661             c = \"$pfx\" toupper(\$1);
662             v = \$2;
663             sub(/yes/, 1, v);
664             sub(/no/,  0, v);
665             for (f in files) {
666                 file = files[f];
667                 if (file ~ /\\.h\$/) {
668                     printf(\"#define %s %d\\n\", c, v) >>file;
669                 } else if (file ~ /\\.asm\$/) {
670                     printf(\"%%define %s %d\\n\", c, v) >>file;
671                 } else if (file ~ /\\.mak\$/) {
672                     n = -v ? \"\" : \"!\";
673                     printf(\"%s%s=yes\\n\", n, c) >>file;
674                 }
675             }
676         }"
677 }
678
679 print_enabled(){
680     suf=$1
681     shift
682     for v; do
683         enabled $v && printf "%s\n" ${v%$suf}
684     done
685 }
686
687 append(){
688     var=$1
689     shift
690     eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694     var=$1
695     shift
696     eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700     var=$1
701     uniq_list=""
702     for tok in $(eval echo \$$var); do
703         uniq_list="$(filter_out $tok $uniq_list) $tok"
704     done
705     eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709     var=$1
710     tmpvar=
711     for entry in $(eval echo \$$var); do
712         tmpvar="$tmpvar $(eval echo \$${entry})"
713     done
714     eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718     append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722     append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726     append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730     append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734     append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738     append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742     append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746     append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750     append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754     prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758     append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762     append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766     append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770     append compat_objs $1
771     shift
772     map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776     log "$@"
777     "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781     eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785     eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789     log check_cc "$@"
790     cat > $TMPC
791     log_file $TMPC
792     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796     log check_objcc "$@"
797     cat > $TMPC
798     log_file $TMPC
799     check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803     log check_cpp "$@"
804     cat > $TMPC
805     log_file $TMPC
806     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810     eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814     log check_as "$@"
815     cat > $TMPS
816     log_file $TMPS
817     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821     log check_inline_asm "$@"
822     name="$1"
823     code="$2"
824     shift 2
825     disable $name
826     check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832     log check_insn "$@"
833     check_inline_asm ${1}_inline "\"$2\""
834     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838     log check_x86asm "$@"
839     echo "$1" > $TMPS
840     log_file $TMPS
841     shift 1
842     check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846     eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850     log check_ld "$@"
851     flags=$(filter_out '-l*' "$@")
852     libs=$(filter '-l*' "$@")
853     check_cc $($cflags_filter $flags) || return
854     flags=$($ldflags_filter $flags)
855     libs=$($ldflags_filter $libs)
856     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860     hdr=$1
861     test "${hdr%.h}" = "${hdr}" &&
862         echo "#include $hdr"    ||
863         echo "#include <$hdr>"
864 }
865
866 check_code(){
867     log check_code "$@"
868     check=$1
869     headers=$2
870     code=$3
871     shift 3
872     {
873         for hdr in $headers; do
874             print_include $hdr
875         done
876         echo "int main(void) { $code; return 0; }"
877     } | check_$check "$@"
878 }
879
880 check_cppflags(){
881     log check_cppflags "$@"
882     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888     log test_cflags "$@"
889     set -- $($cflags_filter "$@")
890     check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896     log check_cflags "$@"
897     test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901     log test_objcflags "$@"
902     set -- $($objcflags_filter "$@")
903     check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909     log check_objcflags "$@"
910     test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914     log test_ldflags "$@"
915     check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921     log check_ldflags "$@"
922     test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926     log test_stripflags "$@"
927     # call check_cc to get a fresh TMPO
928     check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931     check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935     log check_stripflags "$@"
936     test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940     log check_header "$@"
941     header=$1
942     shift
943     disable_sanitized $header
944     check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951     log check_func "$@"
952     func=$1
953     shift
954     disable $func
955     check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962     log check_mathfunc "$@"
963     func=$1
964     narg=$2
965     shift 2
966     test $narg = 2 && args="f, g" || args="f"
967     disable $func
968     check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976     log check_func_headers "$@"
977     headers=$1
978     funcs=$2
979     shift 2
980     {
981         for hdr in $headers; do
982             print_include $hdr
983         done
984         for func in $funcs; do
985             echo "long check_$func(void) { return (long) $func; }"
986         done
987         echo "int main(void) { return 0; }"
988     } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992     log check_cpp_condition "$@"
993     header=$1
994     condition=$2
995     shift 2
996     check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005     log test_cflags_cpp "$@"
1006     flags=$1
1007     condition=$2
1008     shift 2
1009     set -- $($cflags_filter "$flags")
1010     check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018     log check_lib "$@"
1019     name="$1"
1020     headers="$2"
1021     funcs="$3"
1022     shift 3
1023     disable $name
1024     check_func_headers "$headers" "$funcs" "$@" &&
1025         enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 test_pkg_config(){
1029     log test_pkg_config "$@"
1030     name="$1"
1031     pkg_version="$2"
1032     pkg="${2%% *}"
1033     headers="$3"
1034     funcs="$4"
1035     shift 4
1036     disable $name
1037     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041         enable $name &&
1042         set_sanitized "${name}_cflags"    $pkg_cflags &&
1043         set_sanitized "${name}_extralibs" $pkg_libs
1044 }
1045
1046 check_pkg_config(){
1047     log check_pkg_config "$@"
1048     name="$1"
1049     test_pkg_config "$@" &&
1050         eval add_cflags \$${name}_cflags
1051 }
1052
1053 check_exec(){
1054     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1055 }
1056
1057 check_exec_crash(){
1058     log check_exec_crash "$@"
1059     code=$(cat)
1060
1061     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1062     # are safe but may not be available everywhere.  Thus we use
1063     # raise(SIGTERM) instead.  The check is run in a subshell so we
1064     # can redirect the "Terminated" message from the shell.  SIGBUS
1065     # is not defined by standard C so it is used conditionally.
1066
1067     (check_exec "$@") >> $logfile 2>&1 <<EOF
1068 #include <signal.h>
1069 static void sighandler(int sig){
1070     raise(SIGTERM);
1071 }
1072 int foo(void){
1073     $code
1074 }
1075 int (*func_ptr)(void) = foo;
1076 int main(void){
1077     signal(SIGILL, sighandler);
1078     signal(SIGFPE, sighandler);
1079     signal(SIGSEGV, sighandler);
1080 #ifdef SIGBUS
1081     signal(SIGBUS, sighandler);
1082 #endif
1083     return func_ptr();
1084 }
1085 EOF
1086 }
1087
1088 check_type(){
1089     log check_type "$@"
1090     headers=$1
1091     type=$2
1092     shift 2
1093     disable_sanitized "$type"
1094     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1095 }
1096
1097 check_struct(){
1098     log check_struct "$@"
1099     headers=$1
1100     struct=$2
1101     member=$3
1102     shift 3
1103     disable_sanitized "${struct}_${member}"
1104     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1105         enable_sanitized "${struct}_${member}"
1106 }
1107
1108 check_builtin(){
1109     log check_builtin "$@"
1110     name=$1
1111     headers=$2
1112     builtin=$3
1113     shift 3
1114     disable "$name"
1115     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1116 }
1117
1118 check_compile_assert(){
1119     log check_compile_assert "$@"
1120     name=$1
1121     headers=$2
1122     condition=$3
1123     shift 3
1124     disable "$name"
1125     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1126 }
1127
1128 require(){
1129     log require "$@"
1130     name_version="$1"
1131     name="${1%% *}"
1132     headers="$2"
1133     func="$3"
1134     shift 3
1135     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1136 }
1137
1138 require_header(){
1139     log require "$@"
1140     header="$1"
1141     shift
1142     check_header "$header" "$@" || die "ERROR: $header not found"
1143 }
1144
1145 require_cpp_condition(){
1146     log require "$@"
1147     header="$1"
1148     condition="$2"
1149     shift 2
1150     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1151 }
1152
1153 require_pkg_config(){
1154     log require_pkg_config "$@"
1155     pkg_version="$2"
1156     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1157 }
1158
1159 hostcc_e(){
1160     eval printf '%s\\n' $HOSTCC_E
1161 }
1162
1163 hostcc_o(){
1164     eval printf '%s\\n' $HOSTCC_O
1165 }
1166
1167 check_host_cc(){
1168     log check_host_cc "$@"
1169     cat > $TMPC
1170     log_file $TMPC
1171     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1172 }
1173
1174 check_host_cpp(){
1175     log check_host_cpp "$@"
1176     cat > $TMPC
1177     log_file $TMPC
1178     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1179 }
1180
1181 check_host_cppflags(){
1182     log check_host_cppflags "$@"
1183     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1184 #include <stdlib.h>;
1185 EOF
1186 }
1187
1188 check_host_cflags(){
1189     log check_host_cflags "$@"
1190     set -- $($host_cflags_filter "$@")
1191     check_host_cc "$@" <<EOF && append host_cflags "$@"
1192 int x;
1193 EOF
1194 }
1195
1196 check_host_cpp_condition(){
1197     log check_host_cpp_condition "$@"
1198     header=$1
1199     condition=$2
1200     shift 2
1201     check_host_cpp "$@" <<EOF
1202 #include <$header>
1203 #if !($condition)
1204 #error "unsatisfied condition: $condition"
1205 #endif
1206 EOF
1207 }
1208
1209 apply(){
1210     file=$1
1211     shift
1212     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1213 }
1214
1215 cp_if_changed(){
1216     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1217     mkdir -p "$(dirname $2)"
1218     cp -f "$1" "$2"
1219 }
1220
1221 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1222 # system-dependent things.
1223
1224 AVCODEC_COMPONENTS="
1225     bsfs
1226     decoders
1227     encoders
1228     hwaccels
1229     parsers
1230 "
1231
1232 AVDEVICE_COMPONENTS="
1233     indevs
1234     outdevs
1235 "
1236 AVFILTER_COMPONENTS="
1237     filters
1238 "
1239 AVFORMAT_COMPONENTS="
1240     demuxers
1241     muxers
1242     protocols
1243 "
1244
1245 AVRESAMPLE_COMPONENTS=""
1246 AVUTIL_COMPONENTS=""
1247
1248 COMPONENT_LIST="
1249     $AVCODEC_COMPONENTS
1250     $AVDEVICE_COMPONENTS
1251     $AVFILTER_COMPONENTS
1252     $AVFORMAT_COMPONENTS
1253     $AVRESAMPLE_COMPONENTS
1254     $AVUTIL_COMPONENTS
1255 "
1256
1257 EXAMPLE_LIST="
1258     decode_audio_example
1259     decode_video_example
1260     encode_audio_example
1261     encode_video_example
1262     filter_audio_example
1263     metadata_example
1264     output_example
1265     qsvdec_example
1266     transcode_aac_example
1267 "
1268
1269 # catchall list of things that require external libs to link
1270 EXTRALIBS_LIST="
1271     cpu_init
1272     cws2fws
1273 "
1274
1275 HWACCEL_LIBRARY_NONFREE_LIST="
1276     cuda
1277     cuvid
1278     libnpp
1279 "
1280 HWACCEL_LIBRARY_LIST="
1281     $HWACCEL_LIBRARY_NONFREE_LIST
1282     d3d11va
1283     dxva2
1284     libmfx
1285     mmal
1286     nvenc
1287     omx
1288     vaapi
1289     vda
1290     vdpau
1291 "
1292
1293 EXTERNAL_LIBRARY_GPL_LIST="
1294     libcdio
1295     libx264
1296     libx265
1297     libxavs
1298     libxvid
1299 "
1300
1301 EXTERNAL_LIBRARY_NONFREE_LIST="
1302     libfaac
1303     libfdk_aac
1304     openssl
1305 "
1306
1307 EXTERNAL_LIBRARY_VERSION3_LIST="
1308     libopencore_amrnb
1309     libopencore_amrwb
1310     libvo_aacenc
1311     libvo_amrwbenc
1312 "
1313
1314 EXTERNAL_LIBRARY_LIST="
1315     $EXTERNAL_LIBRARY_GPL_LIST
1316     $EXTERNAL_LIBRARY_NONFREE_LIST
1317     $EXTERNAL_LIBRARY_VERSION3_LIST
1318     avisynth
1319     avxsynth
1320     frei0r
1321     gnutls
1322     libbs2b
1323     libdc1394
1324     libdcadec
1325     libfontconfig
1326     libfreetype
1327     libgsm
1328     libhdcd
1329     libilbc
1330     libjack
1331     libkvazaar
1332     libmp3lame
1333     libopencv
1334     libopenh264
1335     libopenjpeg
1336     libopus
1337     libpulse
1338     librtmp
1339     libschroedinger
1340     libsnappy
1341     libspeex
1342     libtheora
1343     libtwolame
1344     libvorbis
1345     libvpx
1346     libwavpack
1347     libwebp
1348     libxcb
1349     libxcb_shm
1350     libxcb_xfixes
1351 "
1352
1353 SYSTEM_LIBRARY_LIST="
1354     bzlib
1355     zlib
1356 "
1357
1358 FEATURE_LIST="
1359     gray
1360     hardcoded_tables
1361     omx_rpi
1362     runtime_cpudetect
1363     safe_bitstream_reader
1364     shared
1365     small
1366     sram
1367     static
1368     swscale_alpha
1369 "
1370
1371 LIBRARY_LIST="
1372     avcodec
1373     avdevice
1374     avfilter
1375     avformat
1376     avresample
1377     avutil
1378     swscale
1379 "
1380
1381 LICENSE_LIST="
1382     gpl
1383     nonfree
1384     version3
1385 "
1386
1387 PROGRAM_LIST="
1388     avconv
1389     avplay
1390     avprobe
1391 "
1392
1393 SUBSYSTEM_LIST="
1394     dct
1395     doc
1396     error_resilience
1397     faan
1398     fft
1399     lsp
1400     lzo
1401     mdct
1402     network
1403     rdft
1404 "
1405
1406 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1407 CONFIG_LIST="
1408     $EXAMPLE_LIST
1409     $EXTERNAL_LIBRARY_LIST
1410     $HWACCEL_LIBRARY_LIST
1411     $FEATURE_LIST
1412     $LICENSE_LIST
1413     $LIBRARY_LIST
1414     $PROGRAM_LIST
1415     $SUBSYSTEM_LIST
1416     $SYSTEM_LIBRARY_LIST
1417     neon_clobber_test
1418     pic
1419     pod2man
1420     texi2html
1421     thumb
1422     valgrind_backtrace
1423     xmm_clobber_test
1424     $COMPONENT_LIST
1425 "
1426
1427 THREADS_LIST="
1428     pthreads
1429     w32threads
1430 "
1431
1432 ATOMICS_LIST="
1433     atomics_gcc
1434     atomics_suncc
1435     atomics_win32
1436 "
1437
1438 ARCH_LIST="
1439     aarch64
1440     alpha
1441     arm
1442     avr32
1443     avr32_ap
1444     avr32_uc
1445     bfin
1446     ia64
1447     m68k
1448     mips
1449     mips64
1450     parisc
1451     ppc
1452     ppc64
1453     s390
1454     sh4
1455     sparc
1456     sparc64
1457     tilegx
1458     tilepro
1459     tomi
1460     x86
1461     x86_32
1462     x86_64
1463 "
1464
1465 ARCH_EXT_LIST_ARM="
1466     armv5te
1467     armv6
1468     armv6t2
1469     armv8
1470     neon
1471     vfp
1472     vfpv3
1473 "
1474
1475 ARCH_EXT_LIST_X86_SIMD="
1476     amd3dnow
1477     amd3dnowext
1478     avx
1479     avx2
1480     fma3
1481     fma4
1482     mmx
1483     mmxext
1484     sse
1485     sse2
1486     sse3
1487     sse4
1488     sse42
1489     ssse3
1490     xop
1491 "
1492
1493 ARCH_EXT_LIST_PPC="
1494     altivec
1495     dcbzl
1496     ldbrx
1497     power8
1498     ppc4xx
1499     vsx
1500 "
1501
1502 ARCH_EXT_LIST_X86="
1503     $ARCH_EXT_LIST_X86_SIMD
1504     cpunop
1505     i686
1506 "
1507
1508 ARCH_EXT_LIST_MIPS="
1509     loongson
1510     mips32r1
1511     mips64r1
1512     mips32r2
1513     mips64r2
1514     mips32r6
1515     mips64r6
1516 "
1517
1518 ARCH_EXT_LIST="
1519     $ARCH_EXT_LIST_ARM
1520     $ARCH_EXT_LIST_MIPS
1521     $ARCH_EXT_LIST_PPC
1522     $ARCH_EXT_LIST_X86
1523     vis
1524 "
1525
1526 ARCH_FEATURES="
1527     aligned_stack
1528     fast_64bit
1529     fast_clz
1530     fast_cmov
1531     local_aligned_8
1532     local_aligned_16
1533     local_aligned_32
1534     simd_align_16
1535     simd_align_32
1536 "
1537
1538 BUILTIN_LIST="
1539     atomic_cas_ptr
1540     machine_rw_barrier
1541     MemoryBarrier
1542     mm_empty
1543     rdtsc
1544     sem_timedwait
1545     sync_val_compare_and_swap
1546 "
1547 HAVE_LIST_CMDLINE="
1548     inline_asm
1549     symver
1550     x86asm
1551 "
1552
1553 HAVE_LIST_PUB="
1554     bigendian
1555     fast_unaligned
1556 "
1557
1558 HEADERS_LIST="
1559     AVFoundation_AVFoundation_h
1560     arpa_inet_h
1561     cdio_paranoia_h
1562     cdio_paranoia_paranoia_h
1563     dispatch_dispatch_h
1564     dev_bktr_ioctl_bt848_h
1565     dev_bktr_ioctl_meteor_h
1566     dev_ic_bt8xx_h
1567     dev_video_bktr_ioctl_bt848_h
1568     dev_video_meteor_ioctl_meteor_h
1569     direct_h
1570     dxgidebug_h
1571     dxva_h
1572     gsm_h
1573     io_h
1574     mach_mach_time_h
1575     machine_ioctl_bt848_h
1576     machine_ioctl_meteor_h
1577     malloc_h
1578     poll_h
1579     soundcard_h
1580     stdatomic_h
1581     sys_mman_h
1582     sys_param_h
1583     sys_resource_h
1584     sys_select_h
1585     sys_soundcard_h
1586     sys_time_h
1587     sys_un_h
1588     sys_videoio_h
1589     unistd_h
1590     valgrind_valgrind_h
1591     windows_h
1592     winsock2_h
1593 "
1594
1595 INTRINSICS_LIST="
1596     intrinsics_neon
1597 "
1598
1599 MATH_FUNCS="
1600     atanf
1601     atan2f
1602     cbrtf
1603     cosf
1604     exp2
1605     exp2f
1606     expf
1607     isinf
1608     isnan
1609     ldexpf
1610     llrint
1611     llrintf
1612     log2
1613     log2f
1614     log10f
1615     lrint
1616     lrintf
1617     powf
1618     rint
1619     round
1620     roundf
1621     sinf
1622     trunc
1623     truncf
1624 "
1625
1626 SYSTEM_FUNCS="
1627     aligned_malloc
1628     clock_gettime
1629     closesocket
1630     CommandLineToArgvW
1631     CryptGenRandom
1632     fcntl
1633     fork
1634     getaddrinfo
1635     gethrtime
1636     getopt
1637     GetProcessAffinityMask
1638     GetProcessMemoryInfo
1639     GetProcessTimes
1640     getrusage
1641     GetSystemTimeAsFileTime
1642     gettimeofday
1643     gmtime_r
1644     inet_aton
1645     isatty
1646     localtime_r
1647     mach_absolute_time
1648     MapViewOfFile
1649     memalign
1650     mmap
1651     mprotect
1652     nanosleep
1653     posix_memalign
1654     sched_getaffinity
1655     SetConsoleTextAttribute
1656     setmode
1657     setrlimit
1658     Sleep
1659     strerror_r
1660     sysconf
1661     sysctl
1662     usleep
1663     VirtualAlloc
1664 "
1665
1666 TOOLCHAIN_FEATURES="
1667     as_arch_directive
1668     as_fpu_directive
1669     as_func
1670     as_object_arch
1671     asm_mod_q
1672     attribute_may_alias
1673     attribute_packed
1674     blocks_extension
1675     ebp_available
1676     ebx_available
1677     gnu_as
1678     ibm_asm
1679     inline_asm_labels
1680     pragma_deprecated
1681     symver_asm_label
1682     symver_gnu_asm
1683     vfp_args
1684     xform_asm
1685     xmm_clobbers
1686 "
1687
1688 TYPES_LIST="
1689     CONDITION_VARIABLE_Ptr
1690     CUVIDDECODECREATEINFO_bitDepthMinus8
1691     socklen_t
1692     struct_addrinfo
1693     struct_group_source_req
1694     struct_ip_mreq_source
1695     struct_ipv6_mreq
1696     struct_pollfd
1697     struct_rusage_ru_maxrss
1698     struct_sockaddr_in6
1699     struct_sockaddr_sa_len
1700     struct_sockaddr_storage
1701     struct_v4l2_frmivalenum_discrete
1702 "
1703
1704 HAVE_LIST="
1705     $ARCH_EXT_LIST
1706     $(add_suffix _external $ARCH_EXT_LIST)
1707     $(add_suffix _inline   $ARCH_EXT_LIST)
1708     $ARCH_FEATURES
1709     $BUILTIN_LIST
1710     $HAVE_LIST_CMDLINE
1711     $HAVE_LIST_PUB
1712     $HEADERS_LIST
1713     $INTRINSICS_LIST
1714     $MATH_FUNCS
1715     $SYSTEM_FUNCS
1716     $THREADS_LIST
1717     $TOOLCHAIN_FEATURES
1718     $TYPES_LIST
1719     dos_paths
1720     libc_msvcrt
1721     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1722     sdl
1723     section_data_rel_ro
1724     threads
1725     uwp
1726     vaapi_drm
1727     vaapi_x11
1728     vdpau_x11
1729 "
1730
1731 # options emitted with CONFIG_ prefix but not available on the command line
1732 CONFIG_EXTRA="
1733     aandcttables
1734     ac3dsp
1735     adts_header
1736     audio_frame_queue
1737     audiodsp
1738     blockdsp
1739     bswapdsp
1740     cabac
1741     cbs
1742     cbs_h264
1743     cbs_h265
1744     cbs_mpeg2
1745     dirac_parse
1746     dvprofile
1747     faandct
1748     faanidct
1749     fdctdsp
1750     flacdsp
1751     fmtconvert
1752     g722dsp
1753     gmp
1754     golomb
1755     gplv3
1756     h263dsp
1757     h264chroma
1758     h264dsp
1759     h264parse
1760     h264pred
1761     h264qpel
1762     hevcparse
1763     hpeldsp
1764     huffman
1765     huffyuvdsp
1766     huffyuvencdsp
1767     idctdsp
1768     iirfilter
1769     imdct15
1770     intrax8
1771     iso_media
1772     ividsp
1773     jpegtables
1774     lgplv3
1775     libx262
1776     libxcb_shape
1777     lpc
1778     lzf
1779     me_cmp
1780     mpeg_er
1781     mpegaudio
1782     mpegaudiodsp
1783     mpegaudioheader
1784     mpegvideo
1785     mpegvideoenc
1786     mss34dsp
1787     pixblockdsp
1788     qpeldsp
1789     qsv
1790     qsvdec
1791     qsvenc
1792     qsvvpp
1793     rangecoder
1794     riffdec
1795     riffenc
1796     rtpdec
1797     rtpenc_chain
1798     rv34dsp
1799     sinewin
1800     snappy
1801     srtp
1802     startcode
1803     texturedsp
1804     texturedspenc
1805     tpeldsp
1806     vaapi_encode
1807     vc1dsp
1808     videodsp
1809     vp3dsp
1810     vp56dsp
1811     vp8dsp
1812     wma_freqs
1813     wmv2dsp
1814 "
1815
1816 CMDLINE_SELECT="
1817     $ARCH_EXT_LIST
1818     $CONFIG_LIST
1819     $HAVE_LIST_CMDLINE
1820     $THREADS_LIST
1821     asm
1822     cross_compile
1823     debug
1824     extra_warnings
1825     logging
1826     lto
1827     optimizations
1828     rpath
1829 "
1830
1831 PATHS_LIST="
1832     bindir
1833     datadir
1834     docdir
1835     incdir
1836     libdir
1837     mandir
1838     prefix
1839     shlibdir
1840 "
1841
1842 CMDLINE_SET="
1843     $PATHS_LIST
1844     ar
1845     arch
1846     as
1847     cc
1848     objcc
1849     cpu
1850     cross_prefix
1851     custom_allocator
1852     dep_cc
1853     env
1854     extra_version
1855     host_cc
1856     host_cflags
1857     host_extralibs
1858     host_ld
1859     host_ldflags
1860     host_os
1861     ignore_tests
1862     ld
1863     logfile
1864     malloc_prefix
1865     nm
1866     optflags
1867     pkg_config
1868     pkg_config_flags
1869     random_seed
1870     samples
1871     sysinclude
1872     sysroot
1873     target_exec
1874     target_os
1875     target_path
1876     target_samples
1877     toolchain
1878     x86asmexe
1879 "
1880
1881 CMDLINE_APPEND="
1882     extra_cflags
1883     extra_objcflags
1884     host_cppflags
1885 "
1886
1887 # code dependency declarations
1888
1889 # architecture extensions
1890
1891 armv5te_deps="arm"
1892 armv6_deps="arm"
1893 armv6t2_deps="arm"
1894 armv8_deps="aarch64"
1895 neon_deps_any="aarch64 arm"
1896 intrinsics_neon_deps="neon"
1897 vfp_deps_any="aarch64 arm"
1898 vfpv3_deps="vfp"
1899
1900 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1901
1902 altivec_deps="ppc"
1903 dcbzl_deps="ppc"
1904 ldbrx_deps="ppc"
1905 ppc4xx_deps="ppc"
1906 vsx_deps="altivec"
1907 power8_deps="vsx"
1908
1909 loongson_deps="mips"
1910 mips32r1_deps="mips32"
1911 mips32r2_deps="mips32"
1912 mips32r6_deps="mips32"
1913 mips64r1_deps="mips64"
1914 mips64r2_deps="mips64"
1915 mips64r6_deps="mips64"
1916
1917 vis_deps="sparc"
1918
1919 cpunop_deps="i686"
1920 x86_64_select="i686"
1921 x86_64_suggest="fast_cmov"
1922
1923 amd3dnow_deps="mmx"
1924 amd3dnowext_deps="amd3dnow"
1925 i686_deps="x86"
1926 mmx_deps="x86"
1927 mmxext_deps="mmx"
1928 sse_deps="mmxext"
1929 sse2_deps="sse"
1930 sse3_deps="sse2"
1931 ssse3_deps="sse3"
1932 sse4_deps="ssse3"
1933 sse42_deps="sse4"
1934 avx_deps="sse42"
1935 xop_deps="avx"
1936 fma3_deps="avx"
1937 fma4_deps="avx"
1938 avx2_deps="avx"
1939
1940 mmx_external_deps="x86asm"
1941 mmx_inline_deps="inline_asm x86"
1942 mmx_suggest="mmx_external mmx_inline"
1943
1944 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1945     eval dep=\$${ext}_deps
1946     eval ${ext}_external_deps='"${dep}_external"'
1947     eval ${ext}_inline_deps='"${dep}_inline"'
1948     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1949 done
1950
1951 aligned_stack_if_any="aarch64 ppc x86"
1952 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1953 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1954 fast_unaligned_if_any="aarch64 ppc x86"
1955 simd_align_16_if_any="altivec neon sse"
1956 simd_align_32_if_any="avx"
1957
1958 # system capabilities
1959 symver_if_any="symver_asm_label symver_gnu_asm"
1960 valgrind_backtrace_conflict="optimizations"
1961 valgrind_backtrace_deps="valgrind_valgrind_h"
1962
1963 # threading support
1964 atomics_gcc_if="sync_val_compare_and_swap"
1965 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1966 atomics_win32_if="MemoryBarrier"
1967 atomics_native_if_any="$ATOMICS_LIST"
1968 w32threads_deps="atomics_native"
1969 threads_if_any="$THREADS_LIST"
1970
1971 # subsystems
1972 cbs_h264_select="cbs golomb"
1973 cbs_h265_select="cbs golomb"
1974 cbs_mpeg2_select="cbs"
1975 dct_select="rdft"
1976 dirac_parse_select="golomb"
1977 error_resilience_select="me_cmp"
1978 faandct_deps="faan"
1979 faandct_select="fdctdsp"
1980 faanidct_deps="faan"
1981 faanidct_select="idctdsp"
1982 h264dsp_select="startcode"
1983 hevcparse_select="golomb"
1984 intrax8_select="blockdsp idctdsp"
1985 mdct_select="fft"
1986 rdft_select="fft"
1987 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1988 mpeg_er_select="error_resilience"
1989 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1990 mpegaudiodsp_select="dct"
1991 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1992 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1993 vc1dsp_select="h264chroma qpeldsp startcode"
1994
1995 # decoders / encoders
1996 aac_decoder_select="adts_header imdct15 mdct sinewin"
1997 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1998 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1999 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2000 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2001 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2002 adpcm_g722_decoder_select="g722dsp"
2003 adpcm_g722_encoder_select="g722dsp"
2004 aic_decoder_select="golomb idctdsp"
2005 alac_encoder_select="lpc"
2006 als_decoder_select="bswapdsp"
2007 amrnb_decoder_select="lsp"
2008 amrwb_decoder_select="lsp"
2009 amv_decoder_select="sp5x_decoder"
2010 ape_decoder_select="bswapdsp"
2011 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2012 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2013 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2014 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2015 atrac1_decoder_select="mdct sinewin"
2016 atrac3_decoder_select="mdct"
2017 atrac3p_decoder_select="mdct sinewin"
2018 bink_decoder_select="blockdsp hpeldsp"
2019 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2020 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2021 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2022 clearvideo_decoder_select="idctdsp"
2023 cllc_decoder_select="bswapdsp"
2024 comfortnoise_encoder_select="lpc"
2025 cook_decoder_select="audiodsp mdct sinewin"
2026 cscd_decoder_select="lzo"
2027 cscd_decoder_suggest="zlib"
2028 dca_decoder_select="fmtconvert mdct"
2029 dds_decoder_select="texturedsp"
2030 dnxhd_decoder_select="blockdsp idctdsp"
2031 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2032 dvvideo_decoder_select="dvprofile idctdsp"
2033 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2034 dxa_decoder_deps="zlib"
2035 dxv_decoder_select="lzf texturedsp"
2036 eac3_decoder_select="ac3_decoder"
2037 eac3_encoder_select="ac3_encoder"
2038 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2039 eatgq_decoder_select="aandcttables idctdsp"
2040 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2041 exr_decoder_deps="zlib"
2042 ffv1_decoder_select="rangecoder"
2043 ffv1_encoder_select="rangecoder"
2044 ffvhuff_decoder_select="huffyuv_decoder"
2045 ffvhuff_encoder_select="huffyuv_encoder"
2046 fic_decoder_select="golomb"
2047 flac_decoder_select="flacdsp"
2048 flac_encoder_select="bswapdsp flacdsp lpc"
2049 flashsv_decoder_deps="zlib"
2050 flashsv_encoder_deps="zlib"
2051 flashsv2_decoder_deps="zlib"
2052 flv_decoder_select="h263_decoder"
2053 flv_encoder_select="h263_encoder"
2054 fourxm_decoder_select="blockdsp bswapdsp"
2055 fraps_decoder_select="bswapdsp huffman"
2056 g2m_decoder_deps="zlib"
2057 g2m_decoder_select="blockdsp idctdsp jpegtables"
2058 h261_decoder_select="mpeg_er mpegvideo"
2059 h261_encoder_select="aandcttables mpegvideoenc"
2060 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2061 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2062 h263i_decoder_select="h263_decoder"
2063 h263p_encoder_select="h263_encoder"
2064 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2065 h264_decoder_suggest="error_resilience"
2066 hap_decoder_select="snappy texturedsp"
2067 hap_encoder_deps="libsnappy"
2068 hap_encoder_select="texturedspenc"
2069 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2070 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2071 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2072 iac_decoder_select="imc_decoder"
2073 imc_decoder_select="bswapdsp fft mdct sinewin"
2074 indeo3_decoder_select="hpeldsp"
2075 indeo4_decoder_select="ividsp"
2076 indeo5_decoder_select="ividsp"
2077 interplay_video_decoder_select="hpeldsp"
2078 jpegls_decoder_select="mjpeg_decoder"
2079 jv_decoder_select="blockdsp"
2080 lagarith_decoder_select="huffyuvdsp"
2081 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2082 magicyuv_decoder_select="huffyuvdsp"
2083 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2084 metasound_decoder_select="lsp mdct sinewin"
2085 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2086 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2087 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2088 mjpegb_decoder_select="mjpeg_decoder"
2089 mlp_decoder_select="mlp_parser"
2090 motionpixels_decoder_select="bswapdsp"
2091 mp1_decoder_select="mpegaudio"
2092 mp1float_decoder_select="mpegaudio"
2093 mp2_decoder_select="mpegaudio"
2094 mp2float_decoder_select="mpegaudio"
2095 mp3_decoder_select="mpegaudio"
2096 mp3adu_decoder_select="mpegaudio"
2097 mp3adufloat_decoder_select="mpegaudio"
2098 mp3float_decoder_select="mpegaudio"
2099 mp3on4_decoder_select="mpegaudio"
2100 mp3on4float_decoder_select="mpegaudio"
2101 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2102 mpc8_decoder_select="mpegaudiodsp"
2103 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2104 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2105 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2106 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2107 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2108 mpeg4_encoder_select="h263_encoder"
2109 msa1_decoder_select="mss34dsp"
2110 msmpeg4v1_decoder_select="h263_decoder"
2111 msmpeg4v2_decoder_select="h263_decoder"
2112 msmpeg4v2_encoder_select="h263_encoder"
2113 msmpeg4v3_decoder_select="h263_decoder"
2114 msmpeg4v3_encoder_select="h263_encoder"
2115 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2116 mts2_decoder_select="mss34dsp"
2117 mxpeg_decoder_select="mjpeg_decoder"
2118 nellymoser_decoder_select="mdct sinewin"
2119 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2120 nuv_decoder_select="idctdsp lzo"
2121 on2avc_decoder_select="mdct"
2122 opus_decoder_deps="avresample"
2123 opus_decoder_select="imdct15"
2124 png_decoder_deps="zlib"
2125 png_encoder_deps="zlib"
2126 png_encoder_select="huffyuvencdsp"
2127 prores_decoder_select="idctdsp"
2128 prores_encoder_select="fdctdsp"
2129 qcelp_decoder_select="lsp"
2130 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2131 ra_144_encoder_select="audio_frame_queue lpc"
2132 ralf_decoder_select="golomb"
2133 rscc_decoder_deps="zlib"
2134 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2135 rv10_encoder_select="h263_encoder"
2136 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2137 rv20_encoder_select="h263_encoder"
2138 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2139 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2140 screenpresso_decoder_deps="zlib"
2141 sipr_decoder_select="lsp"
2142 sp5x_decoder_select="mjpeg_decoder"
2143 svq1_decoder_select="hpeldsp"
2144 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2145 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2146 svq3_decoder_suggest="zlib"
2147 tak_decoder_select="audiodsp"
2148 tdsc_decoder_deps="zlib"
2149 tdsc_decoder_select="mjpeg_decoder"
2150 theora_decoder_select="vp3_decoder"
2151 thp_decoder_select="mjpeg_decoder"
2152 tiff_decoder_suggest="zlib"
2153 tiff_encoder_suggest="zlib"
2154 truehd_decoder_select="mlp_decoder"
2155 truemotion2_decoder_select="bswapdsp"
2156 truespeech_decoder_select="bswapdsp"
2157 tscc_decoder_deps="zlib"
2158 txd_decoder_select="texturedsp"
2159 twinvq_decoder_select="mdct lsp sinewin"
2160 utvideo_decoder_select="bswapdsp huffyuvdsp"
2161 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2162 vble_decoder_select="huffyuvdsp"
2163 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2164 vc1image_decoder_select="vc1_decoder"
2165 vorbis_decoder_select="mdct"
2166 vorbis_encoder_select="mdct"
2167 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2168 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2169 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2170 vp6a_decoder_select="vp6_decoder"
2171 vp6f_decoder_select="vp6_decoder"
2172 vp7_decoder_select="h264pred videodsp vp8dsp"
2173 vp8_decoder_select="h264pred videodsp vp8dsp"
2174 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2175 webp_decoder_select="vp8_decoder"
2176 wmapro_decoder_select="mdct sinewin wma_freqs"
2177 wmav1_decoder_select="mdct sinewin wma_freqs"
2178 wmav1_encoder_select="mdct sinewin wma_freqs"
2179 wmav2_decoder_select="mdct sinewin wma_freqs"
2180 wmav2_encoder_select="mdct sinewin wma_freqs"
2181 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2182 wmv1_decoder_select="h263_decoder"
2183 wmv1_encoder_select="h263_encoder"
2184 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2185 wmv2_encoder_select="h263_encoder wmv2dsp"
2186 wmv3_decoder_select="vc1_decoder"
2187 wmv3image_decoder_select="wmv3_decoder"
2188 zerocodec_decoder_deps="zlib"
2189 zlib_decoder_deps="zlib"
2190 zlib_encoder_deps="zlib"
2191 zmbv_decoder_deps="zlib"
2192 zmbv_encoder_deps="zlib"
2193
2194 # hardware accelerators
2195 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2196 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2197 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2198 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2199
2200 h263_vaapi_hwaccel_deps="vaapi"
2201 h263_vaapi_hwaccel_select="h263_decoder"
2202 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2203 h264_cuvid_hwaccel_select="h264_decoder"
2204 h264_d3d11va_hwaccel_deps="d3d11va"
2205 h264_d3d11va_hwaccel_select="h264_decoder"
2206 h264_d3d11va2_hwaccel_deps="d3d11va"
2207 h264_d3d11va2_hwaccel_select="h264_decoder"
2208 h264_dxva2_hwaccel_deps="dxva2"
2209 h264_dxva2_hwaccel_select="h264_decoder"
2210 h264_mmal_hwaccel_deps="mmal"
2211 h264_qsv_hwaccel_deps="libmfx"
2212 h264_vaapi_hwaccel_deps="vaapi"
2213 h264_vaapi_hwaccel_select="h264_decoder"
2214 h264_vda_hwaccel_deps="vda"
2215 h264_vda_hwaccel_select="h264_decoder"
2216 h264_vda_old_hwaccel_deps="vda"
2217 h264_vda_old_hwaccel_select="h264_decoder"
2218 h264_vdpau_hwaccel_deps="vdpau"
2219 h264_vdpau_hwaccel_select="h264_decoder"
2220 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2221 hevc_cuvid_hwaccel_select="hevc_decoder"
2222 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2223 hevc_d3d11va_hwaccel_select="hevc_decoder"
2224 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2225 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2226 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2227 hevc_dxva2_hwaccel_select="hevc_decoder"
2228 hevc_qsv_hwaccel_deps="libmfx"
2229 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2230 hevc_vaapi_hwaccel_select="hevc_decoder"
2231 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2232 hevc_vdpau_hwaccel_select="hevc_decoder"
2233 mpeg1_vdpau_hwaccel_deps="vdpau"
2234 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2235 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2236 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2238 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_dxva2_hwaccel_deps="dxva2"
2240 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2241 mpeg2_mmal_hwaccel_deps="mmal"
2242 mpeg2_qsv_hwaccel_deps="libmfx"
2243 mpeg2_vaapi_hwaccel_deps="vaapi"
2244 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2245 mpeg2_vdpau_hwaccel_deps="vdpau"
2246 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2247 mpeg4_vaapi_hwaccel_deps="vaapi"
2248 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2249 mpeg4_vdpau_hwaccel_deps="vdpau"
2250 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2251 vc1_d3d11va_hwaccel_deps="d3d11va"
2252 vc1_d3d11va_hwaccel_select="vc1_decoder"
2253 vc1_d3d11va2_hwaccel_deps="d3d11va"
2254 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2255 vc1_dxva2_hwaccel_deps="dxva2"
2256 vc1_dxva2_hwaccel_select="vc1_decoder"
2257 vc1_mmal_hwaccel_deps="mmal"
2258 vc1_qsv_hwaccel_deps="libmfx"
2259 vc1_vaapi_hwaccel_deps="vaapi"
2260 vc1_vaapi_hwaccel_select="vc1_decoder"
2261 vc1_vdpau_hwaccel_deps="vdpau"
2262 vc1_vdpau_hwaccel_select="vc1_decoder"
2263 vp8_qsv_hwaccel_deps="libmfx"
2264 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2265 vp8_vaapi_hwaccel_select="vp8_decoder"
2266 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2267 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2268 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2269 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2270 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2271
2272 # hardware-accelerated codecs
2273 nvenc_deps_any="libdl LoadLibrary"
2274 omx_deps="libdl pthreads"
2275 omx_rpi_select="omx"
2276 qsv_deps="libmfx"
2277 qsvdec_select="qsv"
2278 qsvenc_select="qsv"
2279 qsvvpp_select="qsv"
2280 vaapi_encode_deps="vaapi"
2281
2282 hwupload_cuda_filter_deps="cuda"
2283 scale_npp_filter_deps="cuda libnpp"
2284
2285 h264_mmal_decoder_deps="mmal"
2286 h264_nvenc_encoder_deps="nvenc"
2287 h264_omx_encoder_deps="omx"
2288 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2289 h264_qsv_encoder_select="qsvenc"
2290 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2291 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2292 hevc_nvenc_encoder_deps="nvenc"
2293 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2294 hevc_qsv_encoder_select="hevcparse qsvenc"
2295 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2296 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2297 mjpeg_qsv_encoder_deps="libmfx"
2298 mjpeg_qsv_encoder_select="qsvenc"
2299 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2300 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2301 mpeg2_mmal_decoder_deps="mmal"
2302 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2303 mpeg2_qsv_encoder_select="qsvenc"
2304 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2305 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2306 mpeg4_omx_encoder_deps="omx"
2307 vc1_mmal_decoder_deps="mmal"
2308 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2309 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2310 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2311 vp8_vaapi_encoder_select="vaapi_encode"
2312 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2313 vp9_vaapi_encoder_select="vaapi_encode"
2314
2315 nvenc_h264_encoder_select="h264_nvenc_encoder"
2316 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2317
2318 # parsers
2319 aac_parser_select="adts_header"
2320 h264_parser_select="golomb h264dsp h264parse"
2321 hevc_parser_select="hevcparse"
2322 mpegaudio_parser_select="mpegaudioheader"
2323 mpegvideo_parser_select="mpegvideo"
2324 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2325 vc1_parser_select="vc1dsp"
2326
2327 # bitstream_filters
2328 aac_adtstoasc_bsf_select="adts_header"
2329 h264_metadata_bsf_select="cbs_h264"
2330 h264_redundant_pps_bsf_select="cbs_h264"
2331 hevc_metadata_bsf_select="cbs_h265"
2332 mjpeg2jpeg_bsf_select="jpegtables"
2333 mpeg2_metadata_bsf_select="cbs_mpeg2"
2334 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2335
2336 # external libraries
2337 avisynth_deps="LoadLibrary"
2338 avxsynth_deps="libdl"
2339 avisynth_demuxer_deps_any="avisynth avxsynth"
2340 avisynth_demuxer_select="riffdec"
2341 libdcadec_decoder_deps="libdcadec"
2342 libfaac_encoder_deps="libfaac"
2343 libfaac_encoder_select="audio_frame_queue"
2344 libfdk_aac_decoder_deps="libfdk_aac"
2345 libfdk_aac_encoder_deps="libfdk_aac"
2346 libfdk_aac_encoder_select="audio_frame_queue"
2347 libgsm_decoder_deps="libgsm"
2348 libgsm_encoder_deps="libgsm"
2349 libgsm_ms_decoder_deps="libgsm"
2350 libgsm_ms_encoder_deps="libgsm"
2351 libilbc_decoder_deps="libilbc"
2352 libilbc_encoder_deps="libilbc"
2353 libkvazaar_encoder_deps="libkvazaar"
2354 libmp3lame_encoder_deps="libmp3lame"
2355 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2356 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2357 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2358 libopencore_amrnb_encoder_select="audio_frame_queue"
2359 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2360 libopenh264_decoder_deps="libopenh264"
2361 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2362 libopenh264_encoder_deps="libopenh264"
2363 libopenjpeg_decoder_deps="libopenjpeg"
2364 libopenjpeg_encoder_deps="libopenjpeg"
2365 libopus_decoder_deps="libopus"
2366 libopus_encoder_deps="libopus"
2367 libopus_encoder_select="audio_frame_queue"
2368 libschroedinger_decoder_deps="libschroedinger"
2369 libschroedinger_encoder_deps="libschroedinger"
2370 libspeex_decoder_deps="libspeex"
2371 libspeex_encoder_deps="libspeex"
2372 libspeex_encoder_select="audio_frame_queue"
2373 libtheora_encoder_deps="libtheora"
2374 libtwolame_encoder_deps="libtwolame"
2375 libvo_aacenc_encoder_deps="libvo_aacenc"
2376 libvo_aacenc_encoder_select="audio_frame_queue"
2377 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2378 libvorbis_encoder_deps="libvorbis"
2379 libvorbis_encoder_select="audio_frame_queue"
2380 libvpx_vp8_decoder_deps="libvpx"
2381 libvpx_vp8_encoder_deps="libvpx"
2382 libvpx_vp9_decoder_deps="libvpx"
2383 libvpx_vp9_encoder_deps="libvpx"
2384 libwavpack_encoder_deps="libwavpack"
2385 libwavpack_encoder_select="audio_frame_queue"
2386 libwebp_encoder_deps="libwebp"
2387 libx262_encoder_deps="libx262"
2388 libx264_encoder_deps="libx264"
2389 libx265_encoder_deps="libx265"
2390 libxavs_encoder_deps="libxavs"
2391 libxvid_encoder_deps="libxvid mkstemp"
2392
2393 # demuxers / muxers
2394 ac3_demuxer_select="ac3_parser"
2395 asf_demuxer_select="riffdec"
2396 asf_muxer_select="riffenc"
2397 asf_stream_muxer_select="asf_muxer"
2398 avi_demuxer_select="iso_media riffdec"
2399 avi_muxer_select="riffenc"
2400 caf_demuxer_select="iso_media riffdec"
2401 dash_muxer_select="mp4_muxer"
2402 dirac_demuxer_select="dirac_parser"
2403 dv_demuxer_select="dvprofile"
2404 dv_muxer_select="dvprofile"
2405 dxa_demuxer_select="riffdec"
2406 eac3_demuxer_select="ac3_parser"
2407 f4v_muxer_select="mov_muxer"
2408 flac_demuxer_select="flac_parser"
2409 hds_muxer_select="flv_muxer"
2410 hls_muxer_select="mpegts_muxer"
2411 ipod_muxer_select="mov_muxer"
2412 ismv_muxer_select="mov_muxer"
2413 matroska_audio_muxer_select="matroska_muxer"
2414 matroska_demuxer_select="iso_media riffdec"
2415 matroska_demuxer_suggest="bzlib lzo zlib"
2416 matroska_muxer_select="iso_media riffenc"
2417 mmf_muxer_select="riffenc"
2418 mov_demuxer_select="iso_media riffdec"
2419 mov_demuxer_suggest="zlib"
2420 mov_muxer_select="iso_media riffenc rtpenc_chain"
2421 mp3_demuxer_select="mpegaudio_parser"
2422 mp3_muxer_select="mpegaudioheader"
2423 mp4_muxer_select="mov_muxer"
2424 mpegts_demuxer_select="iso_media"
2425 mpegts_muxer_select="adts_muxer latm_muxer"
2426 mpegtsraw_demuxer_select="mpegts_demuxer"
2427 mxf_d10_muxer_select="mxf_muxer"
2428 nut_muxer_select="riffenc"
2429 nuv_demuxer_select="riffdec"
2430 oga_muxer_select="ogg_muxer"
2431 ogg_demuxer_select="dirac_parse"
2432 opus_muxer_select="ogg_muxer"
2433 psp_muxer_select="mov_muxer"
2434 rtp_demuxer_select="sdp_demuxer"
2435 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2436 rtsp_demuxer_select="http_protocol rtpdec"
2437 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2438 sap_demuxer_select="sdp_demuxer"
2439 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2440 sdp_demuxer_select="rtpdec"
2441 smoothstreaming_muxer_select="ismv_muxer"
2442 spdif_demuxer_select="adts_header"
2443 spdif_muxer_select="adts_header"
2444 spx_muxer_select="ogg_muxer"
2445 swf_demuxer_suggest="zlib"
2446 tak_demuxer_select="tak_parser"
2447 tg2_muxer_select="mov_muxer"
2448 tgp_muxer_select="mov_muxer"
2449 w64_demuxer_select="wav_demuxer"
2450 wav_demuxer_select="riffdec"
2451 wav_muxer_select="riffenc"
2452 webm_muxer_select="iso_media riffenc"
2453 wtv_demuxer_select="mpegts_demuxer riffdec"
2454 xmv_demuxer_select="riffdec"
2455 xwma_demuxer_select="riffdec"
2456
2457 # indevs / outdevs
2458 alsa_indev_deps="alsa"
2459 alsa_outdev_deps="alsa"
2460 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2461 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2462 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2463 dv1394_indev_deps="dv1394"
2464 dv1394_indev_select="dv_demuxer"
2465 fbdev_indev_deps="linux_fb_h"
2466 jack_indev_deps="libjack"
2467 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2468 libcdio_indev_deps="libcdio"
2469 libdc1394_indev_deps="libdc1394"
2470 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2471 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2472 pulse_indev_deps="libpulse"
2473 sndio_indev_deps="sndio"
2474 sndio_outdev_deps="sndio"
2475 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2476 vfwcap_indev_deps="vfw32 vfwcap_defines"
2477 xcbgrab_indev_deps="libxcb libxcb_shape"
2478 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2479
2480 # protocols
2481 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2482 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2483 ffrtmpcrypt_protocol_select="tcp_protocol"
2484 ffrtmphttp_protocol_conflict="librtmp_protocol"
2485 ffrtmphttp_protocol_select="http_protocol"
2486 gopher_protocol_select="network"
2487 http_protocol_select="tcp_protocol"
2488 http_protocol_suggest="zlib"
2489 httpproxy_protocol_select="tcp_protocol"
2490 httpproxy_protocol_suggest="zlib"
2491 https_protocol_select="tls_protocol"
2492 https_protocol_suggest="zlib"
2493 icecast_protocol_select="http_protocol"
2494 librtmp_protocol_deps="librtmp"
2495 librtmpe_protocol_deps="librtmp"
2496 librtmps_protocol_deps="librtmp"
2497 librtmpt_protocol_deps="librtmp"
2498 librtmpte_protocol_deps="librtmp"
2499 mmsh_protocol_select="http_protocol"
2500 mmst_protocol_select="network"
2501 rtmp_protocol_conflict="librtmp_protocol"
2502 rtmp_protocol_select="tcp_protocol"
2503 rtmp_protocol_suggest="zlib"
2504 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2505 rtmpe_protocol_suggest="zlib"
2506 rtmps_protocol_conflict="librtmp_protocol"
2507 rtmps_protocol_select="tls_protocol"
2508 rtmps_protocol_suggest="zlib"
2509 rtmpt_protocol_select="ffrtmphttp_protocol"
2510 rtmpt_protocol_suggest="zlib"
2511 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2512 rtmpte_protocol_suggest="zlib"
2513 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2514 rtmpts_protocol_suggest="zlib"
2515 rtp_protocol_select="udp_protocol"
2516 sctp_protocol_deps="struct_sctp_event_subscribe"
2517 sctp_protocol_select="network"
2518 srtp_protocol_select="rtp_protocol srtp"
2519 tcp_protocol_select="network"
2520 tls_protocol_deps_any="gnutls openssl"
2521 tls_protocol_select="tcp_protocol"
2522 udp_protocol_select="network"
2523 unix_protocol_deps="sys_un_h"
2524 unix_protocol_select="network"
2525
2526 # filters
2527 asyncts_filter_deps="avresample"
2528 blackframe_filter_deps="gpl"
2529 boxblur_filter_deps="gpl"
2530 bs2b_filter_deps="libbs2b"
2531 cropdetect_filter_deps="gpl"
2532 deinterlace_qsv_filter_deps="libmfx"
2533 deinterlace_vaapi_filter_deps="vaapi"
2534 delogo_filter_deps="gpl"
2535 drawtext_filter_deps="libfreetype"
2536 drawtext_filter_suggest="libfontconfig"
2537 frei0r_filter_deps="frei0r libdl"
2538 frei0r_src_filter_deps="frei0r libdl"
2539 hdcd_filter_deps="libhdcd"
2540 hqdn3d_filter_deps="gpl"
2541 interlace_filter_deps="gpl"
2542 movie_filter_deps="avcodec avformat"
2543 ocv_filter_deps="libopencv"
2544 overlay_qsv_filter_deps="libmfx"
2545 overlay_qsv_filter_select="qsvvpp"
2546 resample_filter_deps="avresample"
2547 scale_filter_deps="swscale"
2548 scale_qsv_filter_deps="libmfx"
2549 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2550 vpp_qsv_filter_deps="libmfx"
2551 vpp_qsv_filter_select="qsvvpp"
2552
2553 # examples
2554 decode_audio_example_deps="avcodec avutil"
2555 decode_video_example_deps="avcodec avutil"
2556 encode_audio_example_deps="avcodec avutil"
2557 encode_video_example_deps="avcodec avutil"
2558 filter_audio_example_deps="avfilter avutil"
2559 metadata_example_deps="avformat avutil"
2560 output_example_deps="avcodec avformat avresample avutil swscale"
2561 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2562 transcode_aac_example_deps="avcodec avformat avresample"
2563
2564 # EXTRALIBS_LIST
2565 cpu_init_extralibs="pthreads_extralibs"
2566 cws2fws_extralibs="zlib_extralibs"
2567
2568 # libraries, in linking order
2569 avcodec_deps="avutil"
2570 avcodec_select="null_bsf"
2571 avdevice_deps="avformat avcodec avutil"
2572 avfilter_deps="avutil"
2573 avformat_deps="avcodec avutil"
2574 avformat_suggest="network"
2575 avresample_deps="avutil"
2576 swscale_deps="avutil"
2577
2578 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2579 avdevice_extralibs="libm_extralibs"
2580 avformat_extralibs="libm_extralibs"
2581 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2582 avresample_extralibs="libm_extralibs"
2583 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2584 swscale_extralibs="libm_extralibs"
2585
2586 # programs
2587 avconv_deps="avcodec avfilter avformat avresample swscale"
2588 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2589                fps_filter null_filter resample_filter scale_filter
2590                trim_filter"
2591 avconv_suggest="psapi shell32"
2592 avplay_deps="avcodec avfilter avformat avresample sdl"
2593 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2594 avplay_suggest="shell32"
2595 avprobe_deps="avcodec avformat"
2596 avprobe_suggest="shell32"
2597
2598 # documentation
2599 pod2man_deps="doc"
2600 texi2html_deps="doc"
2601
2602 # default parameters
2603
2604 logfile="avbuild/config.log"
2605
2606 # installation paths
2607 prefix_default="/usr/local"
2608 bindir_default='${prefix}/bin'
2609 datadir_default='${prefix}/share/avconv'
2610 docdir_default='${prefix}/share/doc/libav'
2611 incdir_default='${prefix}/include'
2612 libdir_default='${prefix}/lib'
2613 mandir_default='${prefix}/share/man'
2614 shlibdir_default="$libdir_default"
2615
2616 # toolchain
2617 ar_default="ar"
2618 cc_default="gcc"
2619 host_cc_default="gcc"
2620 x86asmexe_default="nasm"
2621 ln_s="ln -s -f"
2622 nm_default="nm -g"
2623 pkg_config_default=pkg-config
2624 ranlib="ranlib"
2625 strip="strip"
2626 version_script='--version-script'
2627
2628 # machine
2629 arch_default=$(uname -m)
2630 cpu="generic"
2631 intrinsics="none"
2632
2633 # OS
2634 target_os_default=$(tolower $(uname -s))
2635 host_os=$target_os_default
2636
2637 # configurable options
2638 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2639
2640 enable asm
2641 enable debug
2642 enable doc
2643 enable faan faandct faanidct
2644 enable optimizations
2645 enable safe_bitstream_reader
2646 enable static
2647 enable swscale_alpha
2648 enable valgrind_backtrace
2649
2650 # By default, enable only those hwaccels that have no external dependencies.
2651 enable d3d11va dxva2 vda vdpau
2652
2653 # internal components are enabled by default
2654 enable $EXTRALIBS_LIST
2655
2656 # Avoid external, non-system, libraries getting enabled by dependency resolution
2657 disable $EXTERNAL_LIBRARY_LIST
2658
2659 # build settings
2660 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2661 LIBPREF="lib"
2662 LIBSUF=".a"
2663 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2664 SLIBPREF="lib"
2665 SLIBSUF=".so"
2666 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2667 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2668 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2669 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2670 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2671 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2672 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2673
2674 asflags_filter=echo
2675 cflags_filter=echo
2676 ldflags_filter=echo
2677
2678 AS_C='-c'
2679 AS_O='-o $@'
2680 CC_C='-c'
2681 CC_E='-E -o $@'
2682 CC_O='-o $@'
2683 OBJCC_C='-c'
2684 OBJCC_E='-E -o $@'
2685 OBJCC_O='-o $@'
2686 X86ASM_O='-o $@'
2687 LD_O='-o $@'
2688 LD_LIB='-l%'
2689 LD_PATH='-L'
2690 HOSTCC_C='-c'
2691 HOSTCC_E='-E -o $@'
2692 HOSTCC_O='-o $@'
2693 HOSTLD_O='-o $@'
2694
2695 host_extralibs='-lm'
2696 host_cflags_filter=echo
2697 host_ldflags_filter=echo
2698
2699 target_path='$(CURDIR)'
2700
2701 # since the object filename is not given with the -MM flag, the compiler
2702 # is only able to print the basename, and we must add the path ourselves
2703 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2704 DEPFLAGS='-MM'
2705
2706 mkdir -p avbuild
2707
2708 # find source path
2709 if test -f configure; then
2710     source_path=.
2711 else
2712     source_path=$(cd $(dirname "$0"); pwd)
2713     echo "$source_path" | grep -q '[[:blank:]]' &&
2714         die "Out of tree builds are impossible with whitespace in source path."
2715     test -e "$source_path/config.h" &&
2716         die "Out of tree builds are impossible with config.h in source dir."
2717 fi
2718
2719 for v in "$@"; do
2720     r=${v#*=}
2721     l=${v%"$r"}
2722     r=$(sh_quote "$r")
2723     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2724 done
2725
2726 find_things(){
2727     thing=$1
2728     pattern=$2
2729     file=$source_path/$3
2730     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2731 }
2732
2733 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2734 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2735 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2736 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2737 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2738 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2739 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2740 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2741 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2742
2743 find_things_extern(){
2744     thing=$1
2745     pattern=$2
2746     file=$source_path/$3
2747     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2748 }
2749
2750 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2751 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2752
2753 AVCODEC_COMPONENTS_LIST="
2754     $BSF_LIST
2755     $DECODER_LIST
2756     $ENCODER_LIST
2757     $HWACCEL_LIST
2758     $PARSER_LIST
2759 "
2760
2761 AVDEVICE_COMPONENTS_LIST="
2762     $INDEV_LIST
2763     $OUTDEV_LIST
2764 "
2765
2766 AVFILTER_COMPONENTS_LIST="
2767     $FILTER_LIST
2768 "
2769
2770 AVFORMAT_COMPONENTS_LIST="
2771     $DEMUXER_LIST
2772     $MUXER_LIST
2773     $PROTOCOL_LIST
2774 "
2775
2776 ALL_COMPONENTS="
2777     $AVCODEC_COMPONENTS_LIST
2778     $AVDEVICE_COMPONENTS_LIST
2779     $AVFILTER_COMPONENTS_LIST
2780     $AVFORMAT_COMPONENTS_LIST
2781 "
2782
2783 for n in $COMPONENT_LIST; do
2784     v=$(toupper ${n%s})_LIST
2785     eval enable \$$v
2786     eval ${n}_if_any="\$$v"
2787 done
2788
2789 enable $ARCH_EXT_LIST
2790
2791 die_unknown(){
2792     echo "Unknown option \"$1\"."
2793     echo "See $0 --help for available options."
2794     exit 1
2795 }
2796
2797 print_3_columns() {
2798     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2799 }
2800
2801 show_list() {
2802     suffix=_$1
2803     shift
2804     echo $* | sed s/$suffix//g | print_3_columns
2805     exit 0
2806 }
2807
2808 rand_list(){
2809     IFS=', '
2810     set -- $*
2811     unset IFS
2812     for thing; do
2813         comp=${thing%:*}
2814         prob=${thing#$comp}
2815         prob=${prob#:}
2816         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2817         echo "prob ${prob:-0.5}"
2818         printf '%s\n' $comp
2819     done
2820 }
2821
2822 do_random(){
2823     action=$1
2824     shift
2825     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2826     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2827 }
2828
2829 for opt do
2830     optval="${opt#*=}"
2831     case "$opt" in
2832         --extra-ldflags=*)
2833             add_ldflags $optval
2834         ;;
2835         --extra-ldexeflags=*)
2836             add_ldexeflags $optval
2837         ;;
2838         --extra-ldsoflags=*)
2839             add_ldsoflags $optval
2840         ;;
2841         --extra-libs=*)
2842             add_extralibs $optval
2843         ;;
2844         --disable-devices)
2845             disable $INDEV_LIST $OUTDEV_LIST
2846         ;;
2847         --enable-debug=*)
2848             debuglevel="$optval"
2849         ;;
2850         --disable-programs)
2851             disable $PROGRAM_LIST
2852         ;;
2853         --disable-everything)
2854             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2855         ;;
2856         --disable-all)
2857             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2858             disable $LIBRARY_LIST $PROGRAM_LIST doc
2859         ;;
2860         --enable-random|--disable-random)
2861             action=${opt%%-random}
2862             do_random ${action#--} $COMPONENT_LIST
2863         ;;
2864         --enable-random=*|--disable-random=*)
2865             action=${opt%%-random=*}
2866             do_random ${action#--} $optval
2867         ;;
2868         --enable-*=*|--disable-*=*)
2869             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2870             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2871             eval list=\$$(toupper $thing)_LIST
2872             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2873             $action $(filter "$name" $list)
2874         ;;
2875         --enable-avserver|--disable-avserver*)
2876             warn "avserver has been removed, the ${opt} option is only"\
2877                  "provided for compatibility and will be removed in the future"
2878         ;;
2879         --enable-yasm|--disable-yasm)
2880             warn "The ${opt} option is only provided for compatibility and will be\n"\
2881                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2882             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2883         ;;
2884         --enable-?*|--disable-?*)
2885             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2886             if is_in $option $COMPONENT_LIST; then
2887                 test $action = disable && action=unset
2888                 eval $action \$$(toupper ${option%s})_LIST
2889             elif is_in $option $CMDLINE_SELECT; then
2890                 $action $option
2891             else
2892                 die_unknown $opt
2893             fi
2894         ;;
2895         --list-*)
2896             NAME="${opt#--list-}"
2897             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2898             NAME=${NAME%s}
2899             eval show_list $NAME \$$(toupper $NAME)_LIST
2900         ;;
2901         --help|-h) show_help
2902         ;;
2903         --quiet|-q) quiet=yes
2904         ;;
2905         *)
2906             optname="${opt%%=*}"
2907             optname="${optname#--}"
2908             optname=$(echo "$optname" | sed 's/-/_/g')
2909             if is_in $optname $CMDLINE_SET; then
2910                 eval $optname='$optval'
2911             elif is_in $optname $CMDLINE_APPEND; then
2912                 append $optname "$optval"
2913             else
2914                 die_unknown $opt
2915             fi
2916         ;;
2917     esac
2918 done
2919
2920 for e in $env; do
2921     eval "export $e"
2922 done
2923
2924 disabled logging && logfile=/dev/null
2925
2926 # Die early if licensing-related configure options are incompatible.
2927 die_license_disabled() {
2928     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2929 }
2930
2931 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2932 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2933 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2934
2935 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2936
2937 enabled_all gnutls openssl &&
2938     die "GnuTLS and OpenSSL must not be enabled at the same time."
2939
2940 # Disable all the library-specific components if the library itself
2941 # is disabled, see AVCODEC_LIST and following _LIST variables.
2942
2943 disable_components(){
2944     disabled ${1} && disable $(
2945         eval components="\$$(toupper ${1})_COMPONENTS"
2946         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2947     )
2948 }
2949
2950 map 'disable_components $v' $LIBRARY_LIST
2951
2952 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2953 set >> $logfile
2954
2955 case "$toolchain" in
2956     *-asan)
2957         cc_default="${toolchain%-asan}"
2958         add_cflags  -fsanitize=address
2959         add_ldflags -fsanitize=address
2960     ;;
2961     *-msan)
2962         cc_default="${toolchain%-msan}"
2963         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2964         add_ldflags -fsanitize=memory
2965     ;;
2966     *-tsan)
2967         cc_default="${toolchain%-tsan}"
2968         add_cflags  -fsanitize=thread -fPIE
2969         add_ldflags -fsanitize=thread -pie
2970         case "$toolchain" in
2971             gcc-tsan)
2972                 add_cflags  -fPIC
2973                 add_ldflags -fPIC
2974                 ;;
2975         esac
2976     ;;
2977     *-usan)
2978         cc_default="${toolchain%-usan}"
2979         add_cflags  -fsanitize=undefined
2980         add_ldflags -fsanitize=undefined
2981         case "$toolchain" in
2982             clang-usan)
2983                 add_cflags -O1
2984                 ;;
2985         esac
2986     ;;
2987     valgrind-*)
2988         target_exec_default="valgrind"
2989         case "$toolchain" in
2990             valgrind-massif)
2991                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2992                 ;;
2993             valgrind-memcheck)
2994                 target_exec_args="--track-origins=yes --leak-check=full"
2995                 ;;
2996         esac
2997     ;;
2998     msvc)
2999         # Check whether the current MSVC version needs the C99 converter.
3000         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3001         # support enough of C99 to build libav. Default to the new
3002         # behaviour if the regexp was unable to match anything, since this
3003         # successfully parses the version number of existing supported
3004         # versions that require the converter (MSVC 2010 and 2012).
3005         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3006         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3007             cc_default="cl"
3008         else
3009             cc_default="c99wrap cl"
3010         fi
3011         ld_default="$source_path/compat/windows/mslink"
3012         nm_default="dumpbin -symbols"
3013         ar_default="lib"
3014         case "$arch" in
3015         arm*)
3016             as_default="armasm"
3017             ;;
3018         esac
3019         target_os_default="win32"
3020         # Use a relative path for TMPDIR. This makes sure all the
3021         # ffconf temp files are written with a relative path, avoiding
3022         # issues with msys/win32 path conversion for MSVC parameters
3023         # such as -Fo<file> or -out:<file>.
3024         TMPDIR=.
3025     ;;
3026     icl)
3027         cc_default="icl"
3028         ld_default="xilink"
3029         nm_default="dumpbin -symbols"
3030         ar_default="xilib"
3031         target_os_default="win32"
3032         TMPDIR=.
3033     ;;
3034     gcov)
3035         add_cflags  -fprofile-arcs -ftest-coverage
3036         add_ldflags -fprofile-arcs -ftest-coverage
3037     ;;
3038     llvm-cov)
3039         add_cflags -fprofile-arcs -ftest-coverage
3040         add_ldflags --coverage
3041     ;;
3042     hardened)
3043         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3044         add_cflags   -fno-strict-overflow -fstack-protector-all
3045         add_ldflags  -Wl,-z,relro -Wl,-z,now
3046     ;;
3047     ?*)
3048         die "Unknown toolchain $toolchain"
3049     ;;
3050 esac
3051
3052 test -n "$cross_prefix" && enable cross_compile
3053
3054 if enabled cross_compile; then
3055     test -n "$arch" && test -n "$target_os" ||
3056         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3057 fi
3058
3059 ar_default="${cross_prefix}${ar_default}"
3060 cc_default="${cross_prefix}${cc_default}"
3061 objcc_default="${cross_prefix}${objcc_default}"
3062 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3063 nm_default="${cross_prefix}${nm_default}"
3064 pkg_config_default="${cross_prefix}${pkg_config_default}"
3065 ranlib="${cross_prefix}${ranlib}"
3066 strip="${cross_prefix}${strip}"
3067
3068 sysinclude_default="${sysroot}/usr/include"
3069
3070 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3071 enabled cross_compile || host_cc_default=$cc
3072 set_default host_cc
3073
3074 if ! $pkg_config --version >/dev/null 2>&1; then
3075     warn "$pkg_config not found, library detection may fail."
3076     pkg_config=false
3077 fi
3078
3079 exesuf() {
3080     case $1 in
3081         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3082     esac
3083 }
3084
3085 EXESUF=$(exesuf $target_os)
3086 HOSTEXESUF=$(exesuf $host_os)
3087
3088 # set temporary file name
3089 : ${TMPDIR:=$TEMPDIR}
3090 : ${TMPDIR:=$TMP}
3091 : ${TMPDIR:=/tmp}
3092
3093 if ! check_cmd mktemp -u XXXXXX; then
3094     # simple replacement for missing mktemp
3095     # NOT SAFE FOR GENERAL USE
3096     mktemp(){
3097         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3098         echo "$tmpname"
3099         mkdir "$tmpname"
3100     }
3101 fi
3102
3103 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3104     die "Unable to create temporary directory in $TMPDIR."
3105
3106 tmpfile(){
3107     tmp="${AVTMPDIR}/test"$2
3108     (set -C; exec > $tmp) 2> /dev/null ||
3109         die "Unable to create temporary file in $AVTMPDIR."
3110     eval $1=$tmp
3111 }
3112
3113 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3114 trap 'exit 2' INT
3115
3116 tmpfile TMPASM .asm
3117 tmpfile TMPC   .c
3118 tmpfile TMPE   $EXESUF
3119 tmpfile TMPH   .h
3120 tmpfile TMPO   .o
3121 tmpfile TMPS   .S
3122 tmpfile TMPSH  .sh
3123 tmpfile TMPV   .ver
3124
3125 unset -f mktemp
3126
3127 chmod +x $TMPE
3128
3129 # make sure we can execute files in $TMPDIR
3130 cat > $TMPSH 2>> $logfile <<EOF
3131 #! /bin/sh
3132 EOF
3133 chmod +x $TMPSH >> $logfile 2>&1
3134 if ! $TMPSH >> $logfile 2>&1; then
3135     cat <<EOF
3136 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3137 variable to another directory and make sure that it is not mounted noexec.
3138 EOF
3139     die "Sanity test failed."
3140 fi
3141
3142 armasm_flags(){
3143     for flag; do
3144         case $flag in
3145             # Filter out MSVC cl.exe options from cflags that shouldn't
3146             # be passed to gas-preprocessor
3147             -M[TD]*)                                            ;;
3148             *)                  echo $flag                      ;;
3149         esac
3150    done
3151 }
3152
3153 cparser_flags(){
3154     for flag; do
3155         case $flag in
3156             -Wno-switch)             echo -Wno-switch-enum ;;
3157             -Wno-format-zero-length) ;;
3158             -Wdisabled-optimization) ;;
3159             -Wno-pointer-sign)       echo -Wno-other ;;
3160             *)                       echo $flag ;;
3161         esac
3162     done
3163 }
3164
3165 msvc_common_flags(){
3166     for flag; do
3167         case $flag in
3168             # In addition to specifying certain flags under the compiler
3169             # specific filters, they must be specified here as well or else the
3170             # generic catch all at the bottom will print the original flag.
3171             -Wall)                ;;
3172             -Wextra)              ;;
3173             -std=c99)             ;;
3174             # Common flags
3175             -fomit-frame-pointer) ;;
3176             -g)                   echo -Z7 ;;
3177             -fno-math-errno)      ;;
3178             -fno-common)          ;;
3179             -fno-signed-zeros)    ;;
3180             -fPIC)                ;;
3181             -mthumb)              ;;
3182             -march=*)             ;;
3183             -lz)                  echo zlib.lib ;;
3184             -lx264)               echo libx264.lib ;;
3185             -l*)                  echo ${flag#-l}.lib ;;
3186             -L*)                  echo -libpath:${flag#-L} ;;
3187             *)                    echo $flag ;;
3188         esac
3189     done
3190 }
3191
3192 msvc_flags(){
3193     msvc_common_flags "$@"
3194     for flag; do
3195         case $flag in
3196             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3197                                        -wd4554 ;;
3198             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3199                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3200                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3201                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3202         esac
3203     done
3204 }
3205
3206 icl_flags(){
3207     msvc_common_flags "$@"
3208     for flag; do
3209         case $flag in
3210             # Despite what Intel's documentation says -Wall, which is supported
3211             # on Windows, does enable remarks so disable them here.
3212             -Wall)                echo $flag -Qdiag-disable:remark ;;
3213             -std=c99)             echo -Qstd=c99 ;;
3214         esac
3215     done
3216 }
3217
3218 pgi_flags(){
3219     for flag; do
3220         case $flag in
3221             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3222             -fomit-frame-pointer) echo -Mnoframe ;;
3223             -g)                   echo -gopt ;;
3224             *)                    echo $flag ;;
3225         esac
3226     done
3227 }
3228
3229 suncc_flags(){
3230     for flag; do
3231         case $flag in
3232             -march=*|-mcpu=*)
3233                 case "${flag#*=}" in
3234                     native)                   echo -xtarget=native       ;;
3235                     v9|niagara)               echo -xarch=sparc          ;;
3236                     ultrasparc)               echo -xarch=sparcvis       ;;
3237                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3238                     i586|pentium)             echo -xchip=pentium        ;;
3239                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3240                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3241                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3242                     pentium4*)          echo -xtarget=pentium4           ;;
3243                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3244                     *-sse3)             echo -xarch=sse3                 ;;
3245                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3246                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3247                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3248                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3249                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3250                     k8|opteron|athlon64|athlon-fx)
3251                                                echo -xarch=sse2a         ;;
3252                     athlon*)                   echo -xarch=pentium_proa  ;;
3253                 esac
3254                 ;;
3255             -std=c99)             echo -xc99              ;;
3256             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3257             -fPIC)                echo -KPIC -xcode=pic32 ;;
3258             -W*,*)                echo $flag              ;;
3259             -f*-*|-W*|-mimpure-text)                      ;;
3260             -shared)              echo -G                 ;;
3261             *)                    echo $flag              ;;
3262         esac
3263     done
3264 }
3265
3266 tms470_flags(){
3267     for flag; do
3268         case $flag in
3269             -march=*|-mcpu=*)
3270                 case "${flag#*=}" in
3271                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3272                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3273                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3274                     armv6*|arm11*)          echo -mv=6   ;;
3275                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3276                                             echo -mv=5e  ;;
3277                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3278                 esac
3279                 ;;
3280             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3281             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3282             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3283             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3284             -msoft-float)   echo --float_support=vfplib       ;;
3285             -O[0-3]|-mf=*)  echo $flag                        ;;
3286             -g)             echo -g -mn                       ;;
3287             -pds=*)         echo $flag                        ;;
3288             -D*|-I*)        echo $flag                        ;;
3289             --gcc|--abi=*)  echo $flag                        ;;
3290             -me)            echo $flag                        ;;
3291         esac
3292     done
3293 }
3294
3295 probe_cc(){
3296     pfx=$1
3297     _cc=$2
3298
3299     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3300     unset _ld_o _ldflags _ld_lib _ld_path
3301     unset _depflags _DEPCMD _DEPFLAGS
3302     _flags_filter=echo
3303
3304     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3305         _type=llvm_gcc
3306         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3307         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3308         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3309         _cflags_speed='-O3'
3310         _cflags_size='-Os'
3311     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3312         _type=gcc
3313         gcc_version=$($_cc --version | head -n1)
3314         gcc_basever=$($_cc -dumpversion)
3315         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3316         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3317         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3318         if ! $_cc -dumpversion | grep -q '^2\.'; then
3319             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3320         fi
3321         _cflags_speed='-O3'
3322         _cflags_size='-Os'
3323     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3324         _type=icc
3325         _ident=$($_cc --version | head -n1)
3326         _depflags='-MMD'
3327         _cflags_speed='-O3'
3328         _cflags_size='-Os'
3329         _cflags_noopt='-O1'
3330     elif $_cc -v 2>&1 | grep -q xlc; then
3331         _type=xlc
3332         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3333         _cflags_speed='-O5'
3334         _cflags_size='-O5 -qcompact'
3335     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3336         test -d "$sysroot" || die "No valid sysroot specified."
3337         _type=armcc
3338         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3339         armcc_conf="$PWD/armcc.conf"
3340         $_cc --arm_linux_configure                 \
3341              --arm_linux_config_file="$armcc_conf" \
3342              --configure_sysroot="$sysroot"        \
3343              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3344              die "Error creating armcc configuration file."
3345         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3346         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3347         as_default="${cross_prefix}gcc"
3348         _depflags='-MMD'
3349         _cflags_speed='-O3'
3350         _cflags_size='-Os'
3351     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3352         _type=tms470
3353         _ident=$($_cc -version | head -n1 | tr -s ' ')
3354         _flags='--gcc --abi=eabi -me'
3355         _cc_e='-ppl -fe=$@'
3356         _cc_o='-fe=$@'
3357         _depflags='-ppa -ppd=$(@:.o=.d)'
3358         _cflags_speed='-O3 -mf=5'
3359         _cflags_size='-O3 -mf=2'
3360         _flags_filter=tms470_flags
3361     elif $_cc -v 2>&1 | grep -q clang; then
3362         _type=clang
3363         _ident=$($_cc --version 2>/dev/null | head -n1)
3364         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3365         _cflags_speed='-O3'
3366         _cflags_size='-Os'
3367     elif $_cc -V 2>&1 | grep -q Sun; then
3368         _type=suncc
3369         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3370         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3371         _DEPFLAGS='-xM1 -xc99'
3372         _ldflags='-std=c99'
3373         _cflags_speed='-O5'
3374         _cflags_size='-O5 -xspace'
3375         _flags_filter=suncc_flags
3376     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3377         _type=pathscale
3378         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3379         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3380         _cflags_speed='-O2'
3381         _cflags_size='-Os'
3382         _flags_filter='filter_out -Wdisabled-optimization'
3383     elif $_cc -v 2>&1 | grep -q Open64; then
3384         _type=open64
3385         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3386         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3387         _cflags_speed='-O2'
3388         _cflags_size='-Os'
3389         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3390     elif $_cc -V 2>&1 | grep -q Portland; then
3391         _type=pgi
3392         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3393         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3394         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3395         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3396         _cflags_noopt="-O1"
3397         _flags_filter=pgi_flags
3398     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3399         _type=armasm
3400         _ident=$($_cc | head -n1)
3401         # 4509: "This form of conditional instruction is deprecated"
3402         _flags="-nologo -ignore 4509"
3403         _flags_filter=armasm_flags
3404     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3405         _type=msvc
3406         _ident=$($_cc 2>&1 | head -n1)
3407         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3408         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3409         _cflags_speed="-O2"
3410         _cflags_size="-O1"
3411         _cflags_noopt="-O1"
3412         if $_cc -nologo- 2>&1 | grep -q Linker; then
3413             _ld_o='-out:$@'
3414         else
3415             _ld_o='-Fe$@'
3416         fi
3417         _cc_o='-Fo$@'
3418         _cc_e='-P -Fi$@'
3419         _flags_filter=msvc_flags
3420         _ld_lib='lib%.a'
3421         _ld_path='-libpath:'
3422         _flags='-nologo'
3423     elif $_cc 2>&1 | grep -q Intel; then
3424         _type=icl
3425         _ident=$($_cc 2>&1 | head -n1)
3426         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3427         # Not only is O3 broken on 13.x+ but it is slower on all previous
3428         # versions (tested) as well.
3429         _cflags_speed="-O2"
3430         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3431         if $_cc 2>&1 | grep -q Linker; then
3432             _ld_o='-out:$@'
3433         else
3434             _ld_o='-Fe$@'
3435         fi
3436         _cc_o='-Fo$@'
3437         _cc_e='-P'
3438         _flags_filter=icl_flags
3439         _ld_lib='lib%.a'
3440         _ld_path='-libpath:'
3441         # -Qdiag-error to make icl error when seeing certain unknown arguments
3442         _flags='-nologo -Qdiag-error:4044,10157'
3443         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3444         # with MSVC which enables it by default.
3445         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3446     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3447         # lld can emulate multiple different linkers; in ms link.exe mode,
3448         # the -? parameter gives the help output which contains an identifyable
3449         # string, while it gives an error in other modes.
3450         _type=lld-link
3451         # The link.exe mode doesn't have a switch for getting the version,
3452         # but we can force it back to gnu mode and get the version from there.
3453         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3454         _ld_o='-out:$@'
3455         _flags_filter=msvc_flags
3456         _ld_lib='lib%.a'
3457         _ld_path='-libpath:'
3458     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3459         _type=cparser
3460         _ident=$($_cc --version | head -n1)
3461         _depflags='-MMD'
3462         _cflags_speed='-O4'
3463         _cflags_size='-O2'
3464         _flags_filter=cparser_flags
3465     fi
3466
3467     eval ${pfx}_type=\$_type
3468     eval ${pfx}_ident=\$_ident
3469 }
3470
3471 set_ccvars(){
3472     eval ${1}_C=\${_cc_c-\${${1}_C}}
3473     eval ${1}_E=\${_cc_e-\${${1}_E}}
3474     eval ${1}_O=\${_cc_o-\${${1}_O}}
3475
3476     if [ -n "$_depflags" ]; then
3477         eval ${1}_DEPFLAGS=\$_depflags
3478     else
3479         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3480         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3481         eval DEP${1}FLAGS=\$_flags
3482     fi
3483 }
3484
3485 probe_cc cc "$cc"
3486 cflags_filter=$_flags_filter
3487 cflags_speed=$_cflags_speed
3488 cflags_size=$_cflags_size
3489 cflags_noopt=$_cflags_noopt
3490 add_cflags $_flags $_cflags
3491 cc_ldflags=$_ldflags
3492 set_ccvars CC
3493
3494 probe_cc hostcc "$host_cc"
3495 host_cflags_filter=$_flags_filter
3496 host_cflags_speed=$_cflags_speed
3497 add_host_cflags  $_flags $_cflags
3498 set_ccvars HOSTCC
3499
3500 test -n "$cc_type" && enable $cc_type ||
3501     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3502
3503 : ${as_default:=$cc}
3504 : ${objcc_default:=$cc}
3505 : ${dep_cc_default:=$cc}
3506 : ${ld_default:=$cc}
3507 : ${host_ld_default:=$host_cc}
3508 set_default ar as objcc dep_cc ld host_ld
3509
3510 probe_cc as "$as"
3511 asflags_filter=$_flags_filter
3512 add_asflags $_flags $_cflags
3513 set_ccvars AS
3514
3515 probe_cc objcc "$objcc"
3516 objcflags_filter=$_flags_filter
3517 add_objcflags $_flags $_cflags
3518 set_ccvars OBJC
3519
3520 probe_cc ld "$ld"
3521 ldflags_filter=$_flags_filter
3522 add_ldflags $_flags $_ldflags
3523 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3524 LD_O=${_ld_o-$LD_O}
3525 LD_LIB=${_ld_lib-$LD_LIB}
3526 LD_PATH=${_ld_path-$LD_PATH}
3527
3528 probe_cc hostld "$host_ld"
3529 host_ldflags_filter=$_flags_filter
3530 add_host_ldflags $_flags $_ldflags
3531 HOSTLD_O=${_ld_o-$HOSTLD_O}
3532
3533 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3534     probe_cc depcc "$dep_cc"
3535     CCDEP=${_DEPCMD:-$DEPCMD}
3536     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3537     DEPCCFLAGS=$_flags
3538 fi
3539
3540 if $ar 2>&1 | grep -q Microsoft; then
3541     arflags="-nologo"
3542     ar_o='-out:$@'
3543 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3544     arflags="rq"
3545     ar_o='$@'
3546 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3547     arflags='-Xany -r -c'
3548     ar_o='$@'
3549 else
3550     arflags="rc"
3551     ar_o='$@'
3552 fi
3553
3554 add_cflags $extra_cflags
3555 add_objcflags $extra_objcflags
3556 add_asflags $extra_cflags
3557
3558 if test -n "$sysroot"; then
3559     case "$cc_type" in
3560         gcc|llvm_gcc|clang)
3561             add_cppflags --sysroot="$sysroot"
3562             add_ldflags --sysroot="$sysroot"
3563         ;;
3564         tms470)
3565             add_cppflags -I"$sysinclude"
3566             add_ldflags  --sysroot="$sysroot"
3567         ;;
3568     esac
3569 fi
3570
3571 if test "$cpu" = host; then
3572     enabled cross_compile &&
3573         die "--cpu=host makes no sense when cross-compiling."
3574
3575     case "$cc_type" in
3576         gcc|llvm_gcc)
3577             check_native(){
3578                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3579                 sed -n "/cc1.*$1=/{
3580                             s/.*$1=\\([^ ]*\\).*/\\1/
3581                             p
3582                             q
3583                         }" $TMPE
3584             }
3585             cpu=$(check_native -march || check_native -mcpu)
3586         ;;
3587     esac
3588
3589     test "${cpu:-host}" = host &&
3590         die "--cpu=host not supported with compiler $cc"
3591 fi
3592
3593 # Deal with common $arch aliases
3594 case "$arch" in
3595     aarch64|arm64)
3596         arch="aarch64"
3597     ;;
3598     arm*)
3599         arch="arm"
3600     ;;
3601     mips*|IP*)
3602         case "$arch" in
3603         *el)
3604             add_cppflags -EL
3605             add_ldflags -EL
3606         ;;
3607         *eb)
3608             add_cppflags -EB
3609             add_ldflags -EB
3610         ;;
3611         esac
3612         arch="mips"
3613     ;;
3614     parisc*|hppa*)
3615         arch="parisc"
3616     ;;
3617     "Power Macintosh"|ppc*|powerpc*)
3618         arch="ppc"
3619     ;;
3620     s390|s390x)
3621         arch="s390"
3622     ;;
3623     sh4|sh)
3624         arch="sh4"
3625     ;;
3626     sun4u|sparc*)
3627         arch="sparc"
3628     ;;
3629     tilegx|tile-gx)
3630         arch="tilegx"
3631     ;;
3632     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3633         arch="x86"
3634     ;;
3635 esac
3636
3637 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3638 enable $arch
3639
3640 # Add processor-specific flags
3641 if enabled aarch64; then
3642
3643     case $cpu in
3644         armv*)
3645             cpuflags="-march=$cpu"
3646         ;;
3647         *)
3648             cpuflags="-mcpu=$cpu"
3649         ;;
3650     esac
3651
3652 elif enabled alpha; then
3653
3654     cpuflags="-mcpu=$cpu"
3655
3656 elif enabled arm; then
3657
3658     check_arm_arch() {
3659         check_cpp_condition stddef.h \
3660             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3661             $cpuflags
3662     }
3663
3664     probe_arm_arch() {
3665         if   check_arm_arch 4;        then echo armv4
3666         elif check_arm_arch 4T;       then echo armv4t
3667         elif check_arm_arch 5;        then echo armv5
3668         elif check_arm_arch 5E;       then echo armv5e
3669         elif check_arm_arch 5T;       then echo armv5t
3670         elif check_arm_arch 5TE;      then echo armv5te
3671         elif check_arm_arch 5TEJ;     then echo armv5te
3672         elif check_arm_arch 6;        then echo armv6
3673         elif check_arm_arch 6J;       then echo armv6j
3674         elif check_arm_arch 6K;       then echo armv6k
3675         elif check_arm_arch 6Z;       then echo armv6z
3676         elif check_arm_arch 6ZK;      then echo armv6zk
3677         elif check_arm_arch 6T2;      then echo armv6t2
3678         elif check_arm_arch 7;        then echo armv7
3679         elif check_arm_arch 7A  7_A;  then echo armv7-a
3680         elif check_arm_arch 7S;       then echo armv7-a
3681         elif check_arm_arch 7R  7_R;  then echo armv7-r
3682         elif check_arm_arch 7M  7_M;  then echo armv7-m
3683         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3684         elif check_arm_arch 8A  8_A;  then echo armv8-a
3685         fi
3686     }
3687
3688     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3689
3690     case $cpu in
3691         armv*)
3692             cpuflags="-march=$cpu"
3693             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3694         ;;
3695         *)
3696             cpuflags="-mcpu=$cpu"
3697             case $cpu in
3698                 cortex-a*)                               subarch=armv7a  ;;
3699                 cortex-r*)                               subarch=armv7r  ;;
3700                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3701                 arm11*)                                  subarch=armv6   ;;
3702                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3703                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3704                 *)                             subarch=$(probe_arm_arch) ;;
3705             esac
3706         ;;
3707     esac
3708
3709     case "$subarch" in
3710         armv5t*)    enable fast_clz                ;;
3711         armv[6-8]*) enable fast_clz fast_unaligned ;;
3712     esac
3713
3714 elif enabled avr32; then
3715
3716     case $cpu in
3717         ap7[02]0[0-2])
3718             subarch="avr32_ap"
3719             cpuflags="-mpart=$cpu"
3720         ;;
3721         ap)
3722             subarch="avr32_ap"
3723             cpuflags="-march=$cpu"
3724         ;;
3725         uc3[ab]*)
3726             subarch="avr32_uc"
3727             cpuflags="-mcpu=$cpu"
3728         ;;
3729         uc)
3730             subarch="avr32_uc"
3731             cpuflags="-march=$cpu"
3732         ;;
3733     esac
3734
3735 elif enabled bfin; then
3736
3737     cpuflags="-mcpu=$cpu"
3738
3739 elif enabled mips; then
3740
3741     cpuflags="-march=$cpu"
3742
3743 elif enabled ppc; then
3744
3745     disable ldbrx
3746
3747     case $(tolower $cpu) in
3748         601|ppc601|powerpc601)
3749             cpuflags="-mcpu=601"
3750             disable altivec
3751         ;;
3752         603*|ppc603*|powerpc603*)
3753             cpuflags="-mcpu=603"
3754             disable altivec
3755         ;;
3756         604*|ppc604*|powerpc604*)
3757             cpuflags="-mcpu=604"
3758             disable altivec
3759         ;;
3760         g3|75*|ppc75*|powerpc75*)
3761             cpuflags="-mcpu=750"
3762             disable altivec
3763         ;;
3764         g4|745*|ppc745*|powerpc745*)
3765             cpuflags="-mcpu=7450"
3766             disable vsx
3767         ;;
3768         74*|ppc74*|powerpc74*)
3769             cpuflags="-mcpu=7400"
3770             disable vsx
3771         ;;
3772         g5|970|ppc970|powerpc970)
3773             cpuflags="-mcpu=970"
3774             disable vsx
3775         ;;
3776         power[3-6]*)
3777             cpuflags="-mcpu=$cpu"
3778             disable vsx
3779         ;;
3780         power[7-8]*)
3781             cpuflags="-mcpu=$cpu"
3782             enable ldbrx
3783         ;;
3784         cell)
3785             cpuflags="-mcpu=cell"
3786             enable ldbrx
3787             disable vsx
3788         ;;
3789         e500mc)
3790             cpuflags="-mcpu=e500mc"
3791             disable altivec
3792         ;;
3793         e500v2)
3794             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3795             disable altivec
3796             disable dcbzl
3797         ;;
3798         e500)
3799             cpuflags="-mcpu=8540 -mhard-float"
3800             disable altivec
3801             disable dcbzl
3802         ;;
3803     esac
3804
3805 elif enabled sparc; then
3806
3807     case $cpu in
3808         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3809             cpuflags="-mcpu=$cpu"
3810         ;;
3811         ultrasparc*|niagara[234])
3812             cpuflags="-mcpu=$cpu"
3813         ;;
3814     esac
3815
3816 elif enabled x86; then
3817
3818     case $cpu in
3819         i[345]86|pentium)
3820             cpuflags="-march=$cpu"
3821             disable i686
3822             disable mmx
3823         ;;
3824         # targets that do NOT support nopl and conditional mov (cmov)
3825         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3826             cpuflags="-march=$cpu"
3827             disable i686
3828         ;;
3829         # targets that do support nopl and conditional mov (cmov)
3830         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3831             cpuflags="-march=$cpu"
3832             enable i686
3833             enable fast_cmov
3834         ;;
3835         # targets that do support conditional mov but on which it's slow
3836         pentium4|pentium4m|prescott|nocona)
3837             cpuflags="-march=$cpu"
3838             enable i686
3839             disable fast_cmov
3840         ;;
3841     esac
3842
3843 fi
3844
3845 if [ "$cpu" != generic ]; then
3846     add_cflags  $cpuflags
3847     add_asflags $cpuflags
3848     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3849 fi
3850
3851 # compiler sanity check
3852 check_exec <<EOF
3853 int main(void){ return 0; }
3854 EOF
3855 if test "$?" != 0; then
3856     echo "$cc is unable to create an executable file."
3857     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3858         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3859         echo "Only do this if you know what cross compiling means."
3860     fi
3861     die "C compiler test failed."
3862 fi
3863
3864 add_cppflags -D_ISOC99_SOURCE
3865
3866 # some compilers silently accept -std=c11, so we also need to check that the
3867 # version macro is defined properly
3868 check_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3869     add_cflags -std=c11 ||
3870     check_cflags -std=c99
3871
3872 check_cppflags -D_FILE_OFFSET_BITS=64
3873 check_cppflags -D_LARGEFILE_SOURCE
3874
3875 add_host_cppflags -D_ISOC99_SOURCE
3876 check_host_cflags -std=c99
3877 check_host_cflags -Wall
3878 check_host_cflags $host_cflags_speed
3879
3880 check_64bit(){
3881     arch32=$1
3882     arch64=$2
3883     expr=$3
3884     check_code cc "" "int test[2*($expr) - 1]" &&
3885         subarch=$arch64 || subarch=$arch32
3886 }
3887
3888 case "$arch" in
3889     aarch64|alpha|ia64)
3890         spic=$shared
3891     ;;
3892     mips)
3893         check_64bit mips mips64 '_MIPS_SIM > 1'
3894         spic=$shared
3895     ;;
3896     parisc)
3897         check_64bit parisc parisc64 'sizeof(void *) > 4'
3898         spic=$shared
3899     ;;
3900     ppc)
3901         check_64bit ppc ppc64 'sizeof(void *) > 4'
3902         spic=$shared
3903     ;;
3904     s390)
3905         check_64bit s390 s390x 'sizeof(void *) > 4'
3906         spic=$shared
3907     ;;
3908     sparc)
3909         check_64bit sparc sparc64 'sizeof(void *) > 4'
3910         spic=$shared
3911     ;;
3912     x86)
3913         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3914         if test "$subarch" = "x86_64"; then
3915             spic=$shared
3916         fi
3917     ;;
3918 esac
3919
3920 enable $subarch
3921 enabled spic && enable_weak pic
3922
3923 enabled x86_64 && objformat=elf64 || objformat="elf32"
3924
3925 # OS specific
3926 case $target_os in
3927     aix)
3928         SHFLAGS=-shared
3929         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3930         enabled shared && add_ldflags -Wl,-brtl
3931         ;;
3932     android)
3933         disable symver
3934         enable section_data_rel_ro
3935         SLIB_INSTALL_NAME='$(SLIBNAME)'
3936         SLIB_INSTALL_LINKS=
3937         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3938         ;;
3939     haiku)
3940         prefix_default="/boot/common"
3941         network_extralibs="-lnetwork"
3942         host_extralibs=
3943         ;;
3944     sunos)
3945         SHFLAGS='-shared -Wl,-h,$$(@F)'
3946         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3947         network_extralibs="-lsocket -lnsl"
3948         # When using suncc to build, the Solaris linker will mark
3949         # an executable with each instruction set encountered by
3950         # the Solaris assembler.  As our libraries contain their own
3951         # guards for processor-specific code, instead suppress
3952         # generation of the HWCAPS ELF section on Solaris x86 only.
3953         enabled_all suncc x86 &&
3954             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3955             add_ldflags -Wl,-M,mapfile
3956         nm_default='nm -P -g'
3957         version_script='-M'
3958         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3959         ;;
3960     netbsd)
3961         disable symver
3962         oss_indev_extralibs="-lossaudio"
3963         oss_outdev_extralibs="-lossaudio"
3964         ;;
3965     openbsd|bitrig)
3966         disable symver
3967         SHFLAGS='-shared'
3968         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3969         SLIB_INSTALL_LINKS=
3970         oss_indev_extralibs="-lossaudio"
3971         oss_outdev_extralibs="-lossaudio"
3972         ;;
3973     dragonfly)
3974         disable symver
3975         ;;
3976     freebsd)
3977         ;;
3978     bsd/os)
3979         add_extralibs -lpoll -lgnugetopt
3980         ;;
3981     darwin)
3982         enabled ppc && add_asflags -force_cpusubtype_ALL
3983         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3984         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3985         add_ldflags -Wl,-dynamic,-search_paths_first
3986         check_cflags -Werror=partial-availability
3987         SLIBSUF=".dylib"
3988         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3989         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3990         enabled x86_64 && objformat="macho64" || objformat="macho32"
3991         enabled_any pic shared ||
3992             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3993         check_header dispatch/dispatch.h &&
3994             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3995         if test -n "$sysroot"; then
3996             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3997             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
3998         fi
3999         ;;
4000     msys*)
4001         die "Native MSYS builds are discouraged, please use the MINGW environment."
4002         ;;
4003     mingw32*|mingw64*)
4004         target_os=mingw32
4005         LIBTARGET=i386
4006         if enabled x86_64; then
4007             LIBTARGET="i386:x86-64"
4008         fi
4009         if enabled shared; then
4010             # Cannot build both shared and static libs when using dllexport.
4011             disable static
4012         fi
4013         check_ldflags -Wl,--nxcompat
4014         check_ldflags -Wl,--dynamicbase
4015         shlibdir_default="$bindir_default"
4016         SLIBPREF=""
4017         SLIBSUF=".dll"
4018         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4019         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4020         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4021         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4022         SLIB_INSTALL_LINKS=
4023         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4024         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4025         SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4026         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4027         enabled x86_64 && objformat="win64" || objformat="win32"
4028         dlltool="${cross_prefix}dlltool"
4029         ranlib=:
4030         enable dos_paths
4031         ;;
4032     win32|win64)
4033         disable symver
4034         if enabled shared; then
4035             # Link to the import library instead of the normal static library
4036             # for shared libs.
4037             LD_LIB='%.lib'
4038             # Cannot build both shared and static libs with MSVC or icl.
4039             disable static
4040         fi
4041         shlibdir_default="$bindir_default"
4042         SLIBPREF=""
4043         SLIBSUF=".dll"
4044         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4045         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4046         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4047         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4048         SLIB_INSTALL_LINKS=
4049         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4050         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4051         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4052         enabled x86_64 && objformat="win64" || objformat="win32"
4053         ranlib=:
4054         enable dos_paths
4055         ;;
4056     cygwin*)
4057         target_os=cygwin
4058         shlibdir_default="$bindir_default"
4059         SLIBPREF="cyg"
4060         SLIBSUF=".dll"
4061         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4062         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4063         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4064         SLIB_INSTALL_LINKS=
4065         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4066         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4067         enabled x86_64 && objformat="win64" || objformat="win32"
4068         enable dos_paths
4069         ;;
4070     *-dos|freedos|opendos)
4071         network_extralibs="-lsocket"
4072         objformat="coff"
4073         enable dos_paths
4074         add_cppflags -U__STRICT_ANSI__
4075         ;;
4076     linux)
4077         enable dv1394
4078         enable section_data_rel_ro
4079         ;;
4080     irix*)
4081         target_os=irix
4082         ranlib="echo ignoring ranlib"
4083         ;;
4084     os/2*)
4085         ln_s="cp -f"
4086         objformat="aout"
4087         add_cppflags -D_GNU_SOURCE
4088         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4089         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4090         LIBSUF="_s.a"
4091         SLIBPREF=""
4092         SLIBSUF=".dll"
4093         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4094         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4095         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4096             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4097             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4098             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4099             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4100         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4101             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4102         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4103         enable dos_paths
4104         ;;
4105     gnu/kfreebsd)
4106         add_cppflags -D_BSD_SOURCE
4107         ;;
4108     gnu)
4109         ;;
4110     qnx)
4111         add_cppflags -D_QNX_SOURCE
4112         network_extralibs="-lsocket"
4113         ;;
4114     symbian)
4115         SLIBSUF=".dll"
4116         enable dos_paths
4117         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4118         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4119         add_ldflags -Wl,--target1-abs,--no-undefined \
4120                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4121                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4122         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4123                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4124                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4125         ;;
4126     minix)
4127         ;;
4128     none)
4129         ;;
4130     *)
4131         die "Unknown OS '$target_os'."
4132         ;;
4133 esac
4134
4135 # determine libc flavour
4136
4137 probe_libc(){
4138     pfx=$1
4139     pfx_no_=${pfx%_}
4140     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4141     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4142         eval ${pfx}libc_type=uclibc
4143         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4144     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4145         eval ${pfx}libc_type=glibc
4146         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4147     # MinGW headers can be installed on Cygwin, so check for newlib first.
4148     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4149         eval ${pfx}libc_type=newlib
4150         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4151     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4152     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4153         eval ${pfx}libc_type=mingw64
4154         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4155         eval test \$${pfx_no_}cc_type = "gcc" &&
4156             add_${pfx}cppflags -D__printf__=__gnu_printf__
4157     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4158          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4159         eval ${pfx}libc_type=mingw32
4160         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4161             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4162             die "ERROR: MinGW32 runtime version must be >= 3.15."
4163         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4164         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4165             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4166         check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4167             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4168         eval test \$${pfx_no_}cc_type = "gcc" &&
4169             add_${pfx}cppflags -D__printf__=__gnu_printf__
4170     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4171         eval ${pfx}libc_type=msvcrt
4172         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4173             if [ "$pfx" = host_ ]; then
4174                 add_host_cppflags -Dsnprintf=_snprintf
4175             else
4176                 add_compat strtod.o strtod=avpriv_strtod
4177                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4178                                              _snprintf=avpriv_snprintf  \
4179                                              vsnprintf=avpriv_vsnprintf
4180             fi
4181         fi
4182         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4183         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4184         # 0x601 by default unless something else is set by the user.
4185         # This can easily lead to us detecting functions only present
4186         # in such new versions and producing binaries requiring windows 7.0.
4187         # Therefore explicitly set the default to XP unless the user has
4188         # set something else on the command line.
4189         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4190         # family. For these cases, configure is free to use any functions
4191         # found in the SDK headers by default. (Alternatively, we could force
4192         # _WIN32_WINNT to 0x0602 in that case.)
4193         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4194             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4195 #ifdef WINAPI_FAMILY
4196 #include <winapifamily.h>
4197 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4198 #error not desktop
4199 #endif
4200 #endif
4201 EOF
4202         if [ "$pfx" = "" ]; then
4203             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4204         fi
4205     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4206         eval ${pfx}libc_type=klibc
4207     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4208         eval ${pfx}libc_type=bionic
4209     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4210         eval ${pfx}libc_type=solaris
4211         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4212     else
4213         eval ${pfx}libc_type=default
4214         add_${pfx}cppflags -D_DEFAULT_SOURCE
4215     fi
4216 }
4217
4218 probe_libc
4219 test -n "$libc_type" && enable libc_$libc_type
4220 probe_libc host_
4221 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4222
4223 # hacks for compiler/libc/os combinations
4224
4225 case $libc_type in
4226     bionic)
4227         add_compat strtod.o strtod=avpriv_strtod
4228         ;;
4229     glibc)
4230         if enabled tms470; then
4231             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4232             add_cppflags -D__USER_LABEL_PREFIX__=
4233             add_cppflags -D__builtin_memset=memset
4234             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4235             add_cflags   -pds=48    # incompatible redefinition of macro
4236         fi
4237         ;;
4238 esac
4239
4240 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4241     add_cppflags '-I\$(SRC_PATH)/compat/float'
4242
4243 esc(){
4244     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4245 }
4246
4247 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4248
4249 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4250
4251 set_default $PATHS_LIST
4252 set_default nm
4253
4254 # we need to build at least one lib type
4255 if ! enabled_any static shared; then
4256     cat <<EOF
4257 At least one library type must be built.
4258 Specify --enable-static to build the static libraries or --enable-shared to
4259 build the shared libraries as well. To only build the shared libraries specify
4260 --disable-static in addition to --enable-shared.
4261 EOF
4262     exit 1
4263 fi
4264
4265 disabled optimizations || check_cflags -fomit-frame-pointer
4266
4267 enable_weak_pic() {
4268     disabled pic && return
4269     enable pic
4270     add_cppflags -DPIC
4271     case "$target_os" in
4272     mingw*|cygwin*)
4273         ;;
4274     *)
4275         add_cflags -fPIC
4276         ;;
4277     esac
4278     add_asflags  -fPIC
4279 }
4280
4281 enabled pic && enable_weak_pic
4282
4283 check_cc <<EOF || die "Symbol mangling check failed."
4284 int ff_extern;
4285 EOF
4286 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4287 extern_prefix=${sym%%ff_extern*}
4288
4289 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4290
4291 _restrict=
4292 for restrict_keyword in restrict __restrict__ __restrict; do
4293     check_cc <<EOF && _restrict=$restrict_keyword && break
4294 void foo(char * $restrict_keyword p);
4295 EOF
4296 done
4297
4298 check_cc <<EOF && enable pragma_deprecated
4299 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4300 EOF
4301
4302 check_cc <<EOF && enable attribute_packed
4303 struct { int x; } __attribute__((packed)) x;
4304 EOF
4305
4306 check_cc <<EOF && enable attribute_may_alias
4307 union { int x; } __attribute__((may_alias)) x;
4308 EOF
4309
4310 check_cc <<EOF || die "endian test failed"
4311 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4312 EOF
4313 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4314
4315 check_gas() {
4316     log "check_gas using '$as' as AS"
4317     # :vararg is used on aarch64, arm and ppc altivec
4318     check_as <<EOF || return 1
4319 .macro m n, y:vararg=0
4320 \n: .int \y
4321 .endm
4322 m x
4323 EOF
4324     # .altmacro is only used in arm asm
4325     ! enabled arm || check_as <<EOF || return 1
4326 .altmacro
4327 EOF
4328     enable gnu_as
4329     return 0
4330 }
4331
4332 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4333     nogas=:
4334     enabled_any arm aarch64 && nogas=die
4335     enabled_all ppc altivec && nogas=warn
4336     as_noop=-v
4337
4338     case $as_type in
4339         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4340         gcc)  gaspp_as_type=gas ;;
4341         *)    gaspp_as_type=$as_type ;;
4342     esac
4343
4344     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4345
4346     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4347         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4348
4349     if ! check_gas ; then
4350         as=${gas:=$as}
4351         check_gas || \
4352             $nogas "GNU assembler not found, install/update gas-preprocessor"
4353     fi
4354
4355     check_as <<EOF && enable as_func
4356 .func test
4357 .endfunc
4358 EOF
4359 fi
4360
4361 check_inline_asm inline_asm_labels '"1:\n"'
4362
4363 if enabled aarch64; then
4364     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4365     # internal assembler in clang 3.3 does not support this instruction
4366     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4367     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4368
4369     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4370
4371 elif enabled alpha; then
4372
4373     check_cflags -mieee
4374
4375 elif enabled arm; then
4376
4377     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4378     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4379     enabled thumb && check_cflags -mthumb || check_cflags -marm
4380
4381     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4382         enable vfp_args
4383     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4384         enable vfp_args
4385     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4386         case "${cross_prefix:-$cc}" in
4387             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4388             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4389 __asm__ (".eabi_attribute 28, 1");
4390 int main(void) { return 0; }
4391 EOF
4392         esac
4393         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4394     fi
4395
4396     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4397     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4398     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4399     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4400     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4401     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4402
4403     [ $target_os = linux ] || [ $target_os = android ] ||
4404         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4405             $ARCH_EXT_LIST_ARM
4406
4407     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4408
4409     check_as <<EOF && enable as_arch_directive
4410 .arch armv7-a
4411 EOF
4412     check_as <<EOF && enable as_fpu_directive
4413 .fpu neon
4414 EOF
4415
4416     # llvm's integrated assembler supports .object_arch from llvm 3.5
4417     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4418         check_as <<EOF && enable as_object_arch
4419 .object_arch armv4
4420 EOF
4421
4422     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4423
4424 elif enabled mips; then
4425
4426     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4427
4428     # make sure that only an instruction set is enabled
4429     disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4430
4431     if enabled mips64; then
4432         check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4433             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4434                 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4435     else
4436         check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4437             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4438                 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4439     fi
4440
4441 elif enabled parisc; then
4442
4443     if enabled gcc; then
4444         case $($cc -dumpversion) in
4445             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4446         esac
4447     fi
4448
4449 elif enabled ppc; then
4450
4451     enable local_aligned_8 local_aligned_16 local_aligned_32
4452
4453     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4454     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4455     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4456     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4457
4458     if enabled altivec; then
4459         check_cflags -maltivec -mabi=altivec
4460
4461         # check if our compiler supports Motorola AltiVec C API
4462         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4463                                  vector signed int v2 = (vector signed int) { 1 };
4464                                  v1 = vec_add(v1, v2);" ||
4465             disable altivec
4466
4467         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4468     fi
4469
4470     if enabled vsx; then
4471         check_cflags -mvsx &&
4472         check_code cc altivec.h "int v[4] = { 0 };
4473                                  vector signed int v1 = vec_vsx_ld(0, v);" ||
4474             disable vsx
4475     fi
4476
4477     if enabled power8; then
4478         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4479     fi
4480
4481 elif enabled x86; then
4482
4483     check_builtin rdtsc    intrin.h   "__rdtsc()"
4484     check_builtin mm_empty mmintrin.h "_mm_empty()"
4485
4486     enable local_aligned_8 local_aligned_16 local_aligned_32
4487
4488     # check whether EBP is available on x86
4489     # As 'i' is stored on the stack, this program will crash
4490     # if the base pointer is used to access it because the
4491     # base pointer is cleared in the inline assembly code.
4492     check_exec_crash <<EOF && enable ebp_available
4493 volatile int i=0;
4494 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4495 return i;
4496 EOF
4497
4498     # check whether EBX is available on x86
4499     check_inline_asm ebx_available '""::"b"(0)' &&
4500         check_inline_asm ebx_available '"":::"%ebx"'
4501
4502     # check whether xmm clobbers are supported
4503     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4504
4505     # check whether binutils is new enough to compile SSSE3/MMXEXT
4506     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4507     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4508
4509     probe_x86asm(){
4510         x86asmexe_probe=$1
4511         if check_cmd $x86asmexe_probe -v; then
4512             x86asmexe=$x86asmexe_probe
4513             x86asm_type=nasm
4514             x86asm_debug="-g -F dwarf"
4515             X86ASMDEP=
4516             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4517         elif check_cmd $x86asmexe_probe --version; then
4518             x86asmexe=$x86asmexe_probe
4519             x86asm_type=yasm
4520             x86asm_debug="-g dwarf2"
4521             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4522             X86ASM_DEPFLAGS=
4523         fi
4524         check_x86asm "movbe ecx, [5]" && enable x86asm
4525     }
4526
4527     if ! disabled_any asm mmx x86asm; then
4528         disable x86asm
4529         for program in $x86asmexe nasm yasm; do
4530             probe_x86asm $program && break
4531         done
4532         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4533         X86ASMFLAGS="-f $objformat"
4534         enabled pic               && append X86ASMFLAGS "-DPIC"
4535         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
4536         case "$objformat" in
4537             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4538         esac
4539
4540         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4541         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4542         check_x86asm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4543         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4544         check_x86asm "CPU amdnop"                      || disable cpunop
4545     fi
4546
4547     case "$cpu" in
4548         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4549             disable fast_clz
4550         ;;
4551     esac
4552
4553 fi
4554
4555 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4556
4557 check_ldflags -Wl,--as-needed
4558
4559 if ! disabled network; then
4560     check_func getaddrinfo $network_extralibs
4561     check_func inet_aton $network_extralibs
4562
4563     check_type netdb.h "struct addrinfo"
4564     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4565     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4566     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4567     check_type poll.h "struct pollfd"
4568     check_type netinet/sctp.h "struct sctp_event_subscribe"
4569     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4570     check_type netinet/in.h "struct sockaddr_in6"
4571     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4572     check_type "sys/types.h sys/socket.h" socklen_t
4573
4574     # Prefer arpa/inet.h over winsock2
4575     if check_header arpa/inet.h ; then
4576         check_func closesocket
4577     elif check_header winsock2.h ; then
4578         check_func_headers winsock2.h closesocket -lws2 &&
4579             network_extralibs="-lws2" ||
4580         { check_func_headers winsock2.h closesocket -lws2_32 &&
4581             network_extralibs="-lws2_32"; } || disable winsock2_h network
4582         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4583
4584         check_type ws2tcpip.h socklen_t
4585         check_type ws2tcpip.h "struct addrinfo"
4586         check_type ws2tcpip.h "struct group_source_req"
4587         check_type ws2tcpip.h "struct ip_mreq_source"
4588         check_type ws2tcpip.h "struct ipv6_mreq"
4589         check_type winsock2.h "struct pollfd"
4590         check_struct winsock2.h "struct sockaddr" sa_len
4591         check_type ws2tcpip.h "struct sockaddr_in6"
4592         check_type ws2tcpip.h "struct sockaddr_storage"
4593     else
4594         disable network
4595     fi
4596 fi
4597
4598 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4599 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4600 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4601 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4602
4603 case "$custom_allocator" in
4604     jemalloc)
4605         # jemalloc by default does not use a prefix
4606         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4607     ;;
4608     tcmalloc)
4609         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4610         malloc_prefix=tc_
4611     ;;
4612 esac
4613
4614 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4615 check_func  ${malloc_prefix}memalign            && enable memalign
4616 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4617
4618 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4619     { check_lib clock_gettime time.h clock_gettime ||
4620       check_lib clock_gettime time.h clock_gettime -lrt; }
4621
4622 check_func  fcntl
4623 check_func  fork
4624 check_func  gethrtime
4625 check_func  getopt
4626 check_func  getrusage
4627 check_func  gettimeofday
4628 check_func  gmtime_r
4629 check_func  isatty
4630 check_func  localtime_r
4631 check_func  mach_absolute_time
4632 check_func  mkstemp
4633 check_func  mmap
4634 check_func  mprotect
4635 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4636 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4637 check_func  sched_getaffinity
4638 check_func  setrlimit
4639 check_func  strerror_r
4640 check_func  sysconf
4641 check_func  sysctl
4642 check_func  usleep
4643
4644 check_func_headers io.h setmode
4645 check_func_headers stdlib.h getenv
4646
4647 check_func_headers windows.h GetProcessAffinityMask
4648 check_func_headers windows.h GetProcessTimes
4649 check_func_headers windows.h GetSystemTimeAsFileTime
4650 check_func_headers windows.h LoadLibrary
4651 check_func_headers windows.h MapViewOfFile
4652 check_func_headers windows.h SetConsoleTextAttribute
4653 check_func_headers windows.h Sleep
4654 check_func_headers windows.h VirtualAlloc
4655 check_struct windows.h "CONDITION_VARIABLE" Ptr
4656
4657 check_header direct.h
4658 check_header dxgidebug.h
4659 check_header dxva.h
4660 check_header dxva2api.h
4661 check_header io.h
4662 check_header mach/mach_time.h
4663 check_header malloc.h
4664 check_header poll.h
4665 check_header sys/mman.h
4666 check_header sys/param.h
4667 check_header sys/resource.h
4668 check_header sys/select.h
4669 check_header sys/time.h
4670 check_header sys/un.h
4671 check_header unistd.h
4672 check_header valgrind/valgrind.h
4673 check_header VideoDecodeAcceleration/VDADecoder.h
4674 check_header windows.h
4675
4676 # it seems there are versions of clang in some distros that try to use the
4677 # gcc headers, which explodes for stdatomic
4678 # so we also check that atomics actually work here
4679 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4680
4681 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
4682 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
4683 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
4684 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
4685
4686 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4687
4688 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
4689 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
4690 check_struct "cuviddec.h" "CUVIDDECODECREATEINFO" bitDepthMinus8
4691
4692 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4693 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4694 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4695
4696 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4697 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4698 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4699 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4700 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4701 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4702 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4703 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
4704 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
4705
4706 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4707
4708 if ! disabled w32threads && ! enabled pthreads; then
4709     check_lib w32threads "windows.h process.h" _beginthreadex
4710 fi
4711
4712 # check for some common methods of building with pthread support
4713 # do this before the optional library checks as some of them require pthreads
4714 if ! disabled pthreads && ! enabled w32threads; then
4715     if check_lib pthreads pthread.h pthread_join -pthread; then
4716         add_cflags -pthread
4717     elif check_lib pthreads pthread.h pthread_join -pthreads; then
4718         add_cflags -pthreads
4719     elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4720         :
4721     elif check_lib pthreads pthread.h pthread_join -lpthread; then
4722         :
4723     elif check_func pthread_join; then
4724         enable pthreads
4725     fi
4726 fi
4727
4728 enabled pthreads &&
4729     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4730
4731 disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
4732 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4733
4734 # On some systems dynamic loading requires no extra linker flags
4735 check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4736
4737 check_lib libm math.h sin -lm
4738
4739 atan2f_args=2
4740 ldexpf_args=2
4741 powf_args=2
4742
4743 for func in $MATH_FUNCS; do
4744     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4745 done
4746
4747 # these are off by default, so fail if requested and not available
4748 enabled avisynth          && require_header avisynth/avisynth_c.h
4749 enabled avxsynth          && require_header avxsynth/avxsynth_c.h
4750 enabled cuda              && require cuda cuda.h cuInit -lcuda
4751 enabled cuvid             && require cuvid cuviddec.h cuvidCreateDecoder -lnvcuvid
4752 enabled frei0r            && require_header frei0r.h
4753 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
4754 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4755 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4756 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4757 enabled libfaac           && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4758 enabled libfdk_aac        && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4759 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4760 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4761 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4762                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
4763                                done || die "ERROR: libgsm not found"; }
4764 enabled libhdcd           && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4765 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4766 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4767 enabled libmfx            && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4768 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4769 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4770 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4771 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4772 enabled libopencv         && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4773 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4774 enabled libopenjpeg       && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4775                                require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4776 enabled libopus           && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4777 enabled libpulse          && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4778 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4779 enabled libschroedinger   && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4780 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
4781 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex
4782 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4783 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4784 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4785 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4786 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4787 enabled libvpx            && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4788                              { enabled libvpx_vp8_decoder &&
4789                                    check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4790                                enabled libvpx_vp8_encoder &&
4791                                    check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4792                                enabled libvpx_vp9_decoder &&
4793                                    check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4794                                enabled libvpx_vp9_encoder &&
4795                                    check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx
4796                                disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder &&
4797                                    die "libvpx enabled but no supported decoders/encoders found"
4798                              }
4799 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4800 enabled libwebp           && require_pkg_config libwebp libwebp webp/encode.h WebPGetEncoderVersion
4801 enabled libx264           && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
4802                              require_cpp_condition x264.h "X264_BUILD >= 118" &&
4803                              { check_cpp_condition x264.h "X264_MPEG2" &&
4804                                enable libx262; }
4805 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
4806                              require_cpp_condition x265.h "X265_BUILD >= 57"
4807 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4808 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4809 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4810                                { ! enabled cross_compile &&
4811                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4812                                  add_ldflags -L/opt/vc/lib/ &&
4813                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4814                                die "ERROR: mmal not found" &&
4815                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4816 enabled omx               && require_header OMX_Core.h
4817 enabled omx_rpi           && { check_header OMX_Core.h ||
4818                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4819                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
4820 enabled openssl           && { { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
4821                                  check_pkg_config openssl openssl openssl/ssl.h SSL_library_init; } ||
4822                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4823                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4824                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4825                                die "ERROR: openssl not found"; }
4826
4827 enabled gnutls            && check_lib gmp gmp.h mpz_export -lgmp
4828
4829 if enabled nvenc; then
4830     require_header nvEncodeAPI.h
4831     require_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 6"
4832 fi
4833
4834 # SDL adds some CFLAGS that should not be part of the general CFLAGS.
4835 enabled avplay &&
4836     test_pkg_config sdl "sdl >= 1.2.1 sdl < 1.3.0" SDL_events.h SDL_PollEvent
4837
4838 ! disabled pod2man   && check_cmd pod2man --help     && enable pod2man   || disable pod2man
4839 ! disabled texi2html && check_cmd texi2html -version && enable texi2html || disable texi2html
484