Prepare for 11_beta2 Release
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --prefix=PREFIX          install in PREFIX [$prefix]
82   --bindir=DIR             install binaries in DIR [PREFIX/bin]
83   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
84   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
85   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-avconv         disable avconv build
109   --disable-avplay         disable avplay build
110   --disable-avprobe        disable avprobe build
111   --disable-avserver       deprecated, does nothing
112
113 Component options:
114   --disable-doc            do not build documentation
115   --disable-avdevice       disable libavdevice build
116   --disable-avcodec        disable libavcodec build
117   --disable-avformat       disable libavformat build
118   --disable-avutil         disable libavutil build
119   --disable-swscale        disable libswscale build
120   --disable-avfilter       disable video filter support [no]
121   --disable-avresample     disable libavresample build [no]
122   --disable-pthreads       disable pthreads [auto]
123   --disable-w32threads     disable Win32 threads [auto]
124   --disable-network        disable network support [no]
125   --disable-dct            disable DCT code
126   --disable-error-resilience disable error resilience code
127   --disable-lsp            disable LSP code
128   --disable-lzo            disable LZO decoder code
129   --disable-mdct           disable MDCT code
130   --disable-rdft           disable RDFT code
131   --disable-fft            disable FFT code
132
133 Hardware accelerators:
134   --enable-dxva2           enable DXVA2 code
135   --enable-vaapi           enable VAAPI code
136   --enable-vda             enable VDA code
137   --enable-vdpau           enable VDPAU code
138
139 Individual component options:
140   --disable-everything     disable all components listed below
141   --disable-encoder=NAME   disable encoder NAME
142   --enable-encoder=NAME    enable encoder NAME
143   --disable-encoders       disable all encoders
144   --disable-decoder=NAME   disable decoder NAME
145   --enable-decoder=NAME    enable decoder NAME
146   --disable-decoders       disable all decoders
147   --disable-hwaccel=NAME   disable hwaccel NAME
148   --enable-hwaccel=NAME    enable hwaccel NAME
149   --disable-hwaccels       disable all hwaccels
150   --disable-muxer=NAME     disable muxer NAME
151   --enable-muxer=NAME      enable muxer NAME
152   --disable-muxers         disable all muxers
153   --disable-demuxer=NAME   disable demuxer NAME
154   --enable-demuxer=NAME    enable demuxer NAME
155   --disable-demuxers       disable all demuxers
156   --enable-parser=NAME     enable parser NAME
157   --disable-parser=NAME    disable parser NAME
158   --disable-parsers        disable all parsers
159   --enable-bsf=NAME        enable bitstream filter NAME
160   --disable-bsf=NAME       disable bitstream filter NAME
161   --disable-bsfs           disable all bitstream filters
162   --enable-protocol=NAME   enable protocol NAME
163   --disable-protocol=NAME  disable protocol NAME
164   --disable-protocols      disable all protocols
165   --enable-indev=NAME      enable input device NAME
166   --disable-indev=NAME     disable input device NAME
167   --disable-indevs         disable input devices
168   --enable-outdev=NAME     enable output device NAME
169   --disable-outdev=NAME    disable output device NAME
170   --disable-outdevs        disable output devices
171   --disable-devices        disable all devices
172   --enable-filter=NAME     enable filter NAME
173   --disable-filter=NAME    disable filter NAME
174   --disable-filters        disable all filters
175
176 External library support:
177   --enable-avisynth        enable reading of AviSynth script files [no]
178   --enable-bzlib           enable bzlib [autodetect]
179   --enable-frei0r          enable frei0r video filtering
180   --enable-gnutls          enable gnutls [no]
181   --enable-libbs2b         enable bs2b DSP library [no]
182   --enable-libcdio         enable audio CD grabbing with libcdio
183   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
184                            and libraw1394 [no]
185   --enable-libfaac         enable AAC encoding via libfaac [no]
186   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
187   --enable-libfreetype     enable libfreetype [no]
188   --enable-libgsm          enable GSM de/encoding via libgsm [no]
189   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
190   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
191   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
192   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
193   --enable-libopencv       enable video filtering via libopencv [no]
194   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
195   --enable-libopus         enable Opus de/encoding via libopus [no]
196   --enable-libpulse        enable Pulseaudio input via libpulse [no]
197   --enable-librtmp         enable RTMP[E] support via librtmp [no]
198   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
199   --enable-libspeex        enable Speex de/encoding via libspeex [no]
200   --enable-libtheora       enable Theora encoding via libtheora [no]
201   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
202   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
203   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
204   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
205   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
206   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
207   --enable-libwebp         enable WebP encoding via libwebp [no]
208   --enable-libx264         enable H.264 encoding via x264 [no]
209   --enable-libx265         enable HEVC encoding via x265 [no]
210   --enable-libxavs         enable AVS encoding via xavs [no]
211   --enable-libxvid         enable Xvid encoding via xvidcore,
212                            native MPEG-4/Xvid encoder exists [no]
213   --enable-openssl         enable openssl [no]
214   --enable-x11grab         enable X11 grabbing [no]
215   --enable-zlib            enable zlib [autodetect]
216
217 Toolchain options:
218   --arch=ARCH              select architecture [$arch]
219   --cpu=CPU                select the minimum required CPU (affects
220                            instruction selection, may crash on older CPUs)
221   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
222   --enable-cross-compile   assume a cross-compiler is used
223   --sysroot=PATH           root of cross-build tree
224   --sysinclude=PATH        location of cross-build system headers
225   --target-os=OS           compiler targets OS [$target_os]
226   --target-exec=CMD        command to run executables on target
227   --target-path=DIR        path to view of build directory on target
228   --target-samples=DIR     path to samples directory on target
229   --toolchain=NAME         set tool defaults according to NAME
230   --nm=NM                  use nm tool
231   --ar=AR                  use archive tool AR [$ar_default]
232   --as=AS                  use assembler AS [$as_default]
233   --cc=CC                  use C compiler CC [$cc_default]
234   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
235   --ld=LD                  use linker LD
236   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
237   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
238   --host-cc=HOSTCC         use host C compiler HOSTCC
239   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
240   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
241   --host-ld=HOSTLD         use host linker HOSTLD
242   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
243   --host-libs=HLIBS        use libs HLIBS when linking for host
244   --host-os=OS             compiler host OS [$target_os]
245   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
246   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
247   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
248   --extra-libs=ELIBS       add ELIBS [$ELIBS]
249   --extra-version=STRING   version string suffix []
250   --optflags=OPTFLAGS      override optimization-related compiler flags
251   --build-suffix=SUFFIX    library name suffix []
252   --enable-pic             build position-independent code
253   --enable-thumb           compile for Thumb instruction set
254   --enable-lto             use link-time optimization
255
256 Advanced options (experts only):
257   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
258   --disable-symver         disable symbol versioning
259   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
260   --disable-safe-bitstream-reader
261                            disable buffer boundary checking in bitreaders
262                            (faster, but may crash)
263   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
264   --enable-sram            allow use of on-chip SRAM
265
266 Optimization options (experts only):
267   --disable-asm            disable all assembly optimizations
268   --disable-altivec        disable AltiVec optimizations
269   --disable-amd3dnow       disable 3DNow! optimizations
270   --disable-amd3dnowext    disable 3DNow! extended optimizations
271   --disable-mmx            disable MMX optimizations
272   --disable-mmxext         disable MMXEXT optimizations
273   --disable-sse            disable SSE optimizations
274   --disable-sse2           disable SSE2 optimizations
275   --disable-sse3           disable SSE3 optimizations
276   --disable-ssse3          disable SSSE3 optimizations
277   --disable-sse4           disable SSE4 optimizations
278   --disable-sse42          disable SSE4.2 optimizations
279   --disable-avx            disable AVX optimizations
280   --disable-xop            disable XOP optimizations
281   --disable-fma3           disable FMA3 optimizations
282   --disable-fma4           disable FMA4 optimizations
283   --disable-avx2           disable AVX2 optimizations
284   --disable-armv5te        disable armv5te optimizations
285   --disable-armv6          disable armv6 optimizations
286   --disable-armv6t2        disable armv6t2 optimizations
287   --disable-vfp            disable VFP optimizations
288   --disable-neon           disable NEON optimizations
289   --disable-inline-asm     disable use of inline assembly
290   --disable-yasm           disable use of nasm/yasm assembly
291
292 Developer options (useful when working on Libav itself):
293   --disable-debug          disable debugging symbols
294   --enable-debug=LEVEL     set the debug level [$debuglevel]
295   --disable-optimizations  disable compiler optimizations
296   --enable-extra-warnings  enable more compiler warnings
297   --samples=PATH           location of test samples for FATE, if not set use
298                            \$LIBAV_SAMPLES at make invocation time.
299   --enable-neon-clobber-test check NEON registers for clobbering (should be
300                            used only for debugging purposes)
301   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
302                            should be used only for debugging purposes)
303   --enable-random          randomly enable/disable components
304   --disable-random
305   --enable-random=LIST     randomly enable/disable specific components or
306   --disable-random=LIST    component groups. LIST is a comma-separated list
307                            of NAME[:PROB] entries where NAME is a component
308                            (group) and PROB the probability associated with
309                            NAME (default 0.5).
310   --random-seed=VALUE      seed value for --enable/disable-random
311
312 NOTE: Object files are built at the place where configure is launched.
313 EOF
314   exit 0
315 }
316
317 quotes='""'
318
319 log(){
320     echo "$@" >> $logfile
321 }
322
323 log_file(){
324     log BEGIN $1
325     pr -n -t $1 >> $logfile
326     log END $1
327 }
328
329 echolog(){
330     log "$@"
331     echo "$@"
332 }
333
334 warn(){
335     log "WARNING: $*"
336     WARNINGS="${WARNINGS}WARNING: $*\n"
337 }
338
339 die(){
340     echolog "$@"
341     cat <<EOF
342
343 If you think configure made a mistake, make sure you are using the latest
344 version from Git.  If the latest version fails, report the problem to the
345 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
346 EOF
347     if disabled logging; then
348         cat <<EOF
349 Rerun configure with logging enabled (do not use --disable-logging), and
350 include the log this produces with your report.
351 EOF
352     else
353         cat <<EOF
354 Include the log file "$logfile" produced by configure as this will help
355 solving the problem.
356 EOF
357     fi
358     exit 1
359 }
360
361 # Avoid locale weirdness, besides we really just want to translate ASCII.
362 toupper(){
363     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
364 }
365
366 tolower(){
367     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
368 }
369
370 c_escape(){
371     echo "$*" | sed 's/["\\]/\\\0/g'
372 }
373
374 sh_quote(){
375     v=$(echo "$1" | sed "s/'/'\\\\''/g")
376     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
377     echo "$v"
378 }
379
380 cleanws(){
381     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
382 }
383
384 filter(){
385     pat=$1
386     shift
387     for v; do
388         eval "case $v in $pat) echo $v ;; esac"
389     done
390 }
391
392 filter_out(){
393     pat=$1
394     shift
395     for v; do
396         eval "case $v in $pat) ;; *) echo $v ;; esac"
397     done
398 }
399
400 map(){
401     m=$1
402     shift
403     for v; do eval $m; done
404 }
405
406 add_suffix(){
407     suffix=$1
408     shift
409     for v; do echo ${v}${suffix}; done
410 }
411
412 set_all(){
413     value=$1
414     shift
415     for var in $*; do
416         eval $var=$value
417     done
418 }
419
420 set_weak(){
421     value=$1
422     shift
423     for var; do
424         eval : \${$var:=$value}
425     done
426 }
427
428 sanitize_var_name(){
429     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
430 }
431
432 set_safe(){
433     var=$1
434     shift
435     eval $(sanitize_var_name "$var")='$*'
436 }
437
438 get_safe(){
439     eval echo \$$(sanitize_var_name "$1")
440 }
441
442 pushvar(){
443     for pvar in $*; do
444         eval level=\${${pvar}_level:=0}
445         eval ${pvar}_${level}="\$$pvar"
446         eval ${pvar}_level=$(($level+1))
447     done
448 }
449
450 popvar(){
451     for pvar in $*; do
452         eval level=\${${pvar}_level:-0}
453         test $level = 0 && continue
454         eval level=$(($level-1))
455         eval $pvar="\${${pvar}_${level}}"
456         eval ${pvar}_level=$level
457         eval unset ${pvar}_${level}
458     done
459 }
460
461 enable(){
462     set_all yes $*
463 }
464
465 disable(){
466     set_all no $*
467 }
468
469 enable_weak(){
470     set_weak yes $*
471 }
472
473 disable_weak(){
474     set_weak no $*
475 }
476
477 enable_safe(){
478     for var; do
479         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
480     done
481 }
482
483 disable_safe(){
484     for var; do
485         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
486     done
487 }
488
489 do_enable_deep(){
490     for var; do
491         enabled $var && continue
492         eval sel="\$${var}_select"
493         eval sgs="\$${var}_suggest"
494         pushvar var sgs
495         enable_deep $sel
496         popvar sgs
497         enable_deep_weak $sgs
498         popvar var
499     done
500 }
501
502 enable_deep(){
503     do_enable_deep $*
504     enable $*
505 }
506
507 enable_deep_weak(){
508     for var; do
509         disabled $var && continue
510         pushvar var
511         do_enable_deep $var
512         popvar var
513         enable_weak $var
514     done
515 }
516
517 enabled(){
518     test "${1#!}" = "$1" && op== || op=!=
519     eval test "x\$${1#!}" $op "xyes"
520 }
521
522 disabled(){
523     test "${1#!}" = "$1" && op== || op=!=
524     eval test "x\$${1#!}" $op "xno"
525 }
526
527 enabled_all(){
528     for opt; do
529         enabled $opt || return 1
530     done
531 }
532
533 disabled_all(){
534     for opt; do
535         disabled $opt || return 1
536     done
537 }
538
539 enabled_any(){
540     for opt; do
541         enabled $opt && return 0
542     done
543 }
544
545 disabled_any(){
546     for opt; do
547         disabled $opt && return 0
548     done
549     return 1
550 }
551
552 set_default(){
553     for opt; do
554         eval : \${$opt:=\$${opt}_default}
555     done
556 }
557
558 is_in(){
559     value=$1
560     shift
561     for var in $*; do
562         [ $var = $value ] && return 0
563     done
564     return 1
565 }
566
567 do_check_deps(){
568     for cfg; do
569         cfg="${cfg#!}"
570         enabled ${cfg}_checking && die "Circular dependency for $cfg."
571         disabled ${cfg}_checking && continue
572         enable ${cfg}_checking
573         append allopts $cfg
574
575         eval dep_all="\$${cfg}_deps"
576         eval dep_any="\$${cfg}_deps_any"
577         eval dep_sel="\$${cfg}_select"
578         eval dep_sgs="\$${cfg}_suggest"
579         eval dep_ifa="\$${cfg}_if"
580         eval dep_ifn="\$${cfg}_if_any"
581
582         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
583         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
584         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
585
586         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
587         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
588         enabled_all  $dep_all || disable $cfg
589         enabled_any  $dep_any || disable $cfg
590         disabled_any $dep_sel && disable $cfg
591
592         if enabled $cfg; then
593             enable_deep $dep_sel
594             enable_deep_weak $dep_sgs
595         fi
596
597         disable ${cfg}_checking
598     done
599 }
600
601 check_deps(){
602     unset allopts
603
604     do_check_deps "$@"
605
606     for cfg in $allopts; do
607         enabled $cfg || continue
608         eval dep_extralibs="\$${cfg}_extralibs"
609         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
610     done
611 }
612
613 print_config(){
614     pfx=$1
615     files=$2
616     shift 2
617     map 'eval echo "$v \${$v:-no}"' "$@" |
618     awk "BEGIN { split(\"$files\", files) }
619         {
620             c = \"$pfx\" toupper(\$1);
621             v = \$2;
622             sub(/yes/, 1, v);
623             sub(/no/,  0, v);
624             for (f in files) {
625                 file = files[f];
626                 if (file ~ /\\.h\$/) {
627                     printf(\"#define %s %d\\n\", c, v) >>file;
628                 } else if (file ~ /\\.asm\$/) {
629                     printf(\"%%define %s %d\\n\", c, v) >>file;
630                 } else if (file ~ /\\.mak\$/) {
631                     n = -v ? \"\" : \"!\";
632                     printf(\"%s%s=yes\\n\", n, c) >>file;
633                 }
634             }
635         }"
636 }
637
638 print_enabled(){
639     suf=$1
640     shift
641     for v; do
642         enabled $v && printf "%s\n" ${v%$suf};
643     done
644 }
645
646 append(){
647     var=$1
648     shift
649     eval "$var=\"\$$var $*\""
650 }
651
652 prepend(){
653     var=$1
654     shift
655     eval "$var=\"$* \$$var\""
656 }
657
658 unique(){
659     var=$1
660     uniq_list=""
661     for tok in $(eval echo \$$var); do
662         uniq_list="$(filter_out $tok $uniq_list) $tok"
663     done
664     eval "$var=\"${uniq_list}\""
665 }
666
667 add_cppflags(){
668     append CPPFLAGS "$@"
669 }
670
671 add_cflags(){
672     append CFLAGS $($cflags_filter "$@")
673 }
674
675 add_asflags(){
676     append ASFLAGS $($asflags_filter "$@")
677 }
678
679 add_ldflags(){
680     append LDFLAGS $($ldflags_filter "$@")
681 }
682
683 add_ldexeflags(){
684     append LDEXEFLAGS $($ldflags_filter "$@")
685 }
686
687 add_stripflags(){
688     append STRIPFLAGS "$@"
689 }
690
691 add_extralibs(){
692     prepend extralibs $($ldflags_filter "$@")
693 }
694
695 add_host_cppflags(){
696     append host_cppflags "$@"
697 }
698
699 add_host_cflags(){
700     append host_cflags $($host_cflags_filter "$@")
701 }
702
703 add_host_ldflags(){
704     append host_ldflags $($host_ldflags_filter "$@")
705 }
706
707 add_compat(){
708     append compat_objs $1
709     shift
710     map 'add_cppflags -D$v' "$@"
711 }
712
713 check_cmd(){
714     log "$@"
715     "$@" >> $logfile 2>&1
716 }
717
718 cc_o(){
719     eval printf '%s\\n' $CC_O
720 }
721
722 cc_e(){
723     eval printf '%s\\n' $CC_E
724 }
725
726 check_cc(){
727     log check_cc "$@"
728     cat > $TMPC
729     log_file $TMPC
730     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
731 }
732
733 check_cpp(){
734     log check_cpp "$@"
735     cat > $TMPC
736     log_file $TMPC
737     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
738 }
739
740 as_o(){
741     eval printf '%s\\n' $AS_O
742 }
743
744 check_as(){
745     log check_as "$@"
746     cat > $TMPS
747     log_file $TMPS
748     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
749 }
750
751 check_inline_asm(){
752     log check_inline_asm "$@"
753     name="$1"
754     code="$2"
755     shift 2
756     disable $name
757     check_cc "$@" <<EOF && enable $name
758 void foo(void){ __asm__ volatile($code); }
759 EOF
760 }
761
762 check_insn(){
763     log check_insn "$@"
764     check_inline_asm ${1}_inline "\"$2\""
765     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
766 }
767
768 check_yasm(){
769     log check_yasm "$@"
770     echo "$1" > $TMPS
771     log_file $TMPS
772     shift 1
773     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
774 }
775
776 ld_o(){
777     eval printf '%s\\n' $LD_O
778 }
779
780 check_ld(){
781     log check_ld "$@"
782     flags=$(filter_out '-l*' "$@")
783     libs=$(filter '-l*' "$@")
784     check_cc $($cflags_filter $flags) || return
785     flags=$($ldflags_filter $flags)
786     libs=$($ldflags_filter $libs)
787     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
788 }
789
790 print_include(){
791     hdr=$1
792     test "${hdr%.h}" = "${hdr}" &&
793         echo "#include $hdr"    ||
794         echo "#include <$hdr>"
795 }
796
797 check_code(){
798     log check_code "$@"
799     check=$1
800     headers=$2
801     code=$3
802     shift 3
803     {
804         for hdr in $headers; do
805             print_include $hdr
806         done
807         echo "int main(void) { $code; return 0; }"
808     } | check_$check "$@"
809 }
810
811 check_cppflags(){
812     log check_cppflags "$@"
813     check_cc "$@" <<EOF && append CPPFLAGS "$@"
814 int x;
815 EOF
816 }
817
818 test_cflags(){
819     log test_cflags "$@"
820     set -- $($cflags_filter "$@")
821     check_cc "$@" <<EOF
822 int x;
823 EOF
824 }
825
826 check_cflags(){
827     log check_cflags "$@"
828     test_cflags "$@" && add_cflags "$@"
829 }
830
831 test_ldflags(){
832     log test_ldflags "$@"
833     check_ld "$@" <<EOF
834 int main(void){ return 0; }
835 EOF
836 }
837
838 check_ldflags(){
839     log check_ldflags "$@"
840     test_ldflags "$@" && add_ldflags "$@"
841 }
842
843 test_stripflags(){
844     log test_stripflags "$@"
845     # call check_cc to get a fresh TMPO
846     check_cc <<EOF
847 int main(void) { return 0; }
848 EOF
849     check_cmd $strip $STRIPFLAGS "$@" $TMPO
850 }
851
852 check_stripflags(){
853     log check_stripflags "$@"
854     test_stripflags "$@" && add_stripflags "$@"
855 }
856
857 check_header(){
858     log check_header "$@"
859     header=$1
860     shift
861     disable_safe $header
862     check_cpp "$@" <<EOF && enable_safe $header
863 #include <$header>
864 int x;
865 EOF
866 }
867
868 check_func(){
869     log check_func "$@"
870     func=$1
871     shift
872     disable $func
873     check_ld "$@" <<EOF && enable $func
874 extern int $func();
875 int main(void){ $func(); }
876 EOF
877 }
878
879 check_mathfunc(){
880     log check_mathfunc "$@"
881     func=$1
882     narg=$2
883     shift 2
884     test $narg = 2 && args="f, g" || args="f"
885     disable $func
886     check_ld "$@" <<EOF && enable $func
887 #include <math.h>
888 float foo(float f, float g) { return $func($args); }
889 int main(void){ return 0; }
890 EOF
891 }
892
893 check_func_headers(){
894     log check_func_headers "$@"
895     headers=$1
896     funcs=$2
897     shift 2
898     {
899         for hdr in $headers; do
900             print_include $hdr
901         done
902         for func in $funcs; do
903             echo "long check_$func(void) { return (long) $func; }"
904         done
905         echo "int main(void) { return 0; }"
906     } | check_ld "$@" && enable $funcs && enable_safe $headers
907 }
908
909 check_cpp_condition(){
910     log check_cpp_condition "$@"
911     header=$1
912     condition=$2
913     shift 2
914     check_cpp "$@" <<EOF
915 #include <$header>
916 #if !($condition)
917 #error "unsatisfied condition: $condition"
918 #endif
919 EOF
920 }
921
922 check_lib(){
923     log check_lib "$@"
924     header="$1"
925     func="$2"
926     shift 2
927     check_header $header && check_func $func "$@" && add_extralibs "$@"
928 }
929
930 check_lib2(){
931     log check_lib2 "$@"
932     headers="$1"
933     funcs="$2"
934     shift 2
935     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
936 }
937
938 check_pkg_config(){
939     log check_pkg_config "$@"
940     pkg="$1"
941     headers="$2"
942     funcs="$3"
943     shift 3
944     check_cmd $pkg_config --exists --print-errors $pkg || return
945     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
946     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
947     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
948         set_safe ${pkg}_cflags $pkg_cflags   &&
949         set_safe ${pkg}_libs   $pkg_libs
950 }
951
952 check_exec(){
953     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
954 }
955
956 check_exec_crash(){
957     code=$(cat)
958
959     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
960     # are safe but may not be available everywhere.  Thus we use
961     # raise(SIGTERM) instead.  The check is run in a subshell so we
962     # can redirect the "Terminated" message from the shell.  SIGBUS
963     # is not defined by standard C so it is used conditionally.
964
965     (check_exec "$@") >> $logfile 2>&1 <<EOF
966 #include <signal.h>
967 static void sighandler(int sig){
968     raise(SIGTERM);
969 }
970 int foo(void){
971     $code
972 }
973 int (*func_ptr)(void) = foo;
974 int main(void){
975     signal(SIGILL, sighandler);
976     signal(SIGFPE, sighandler);
977     signal(SIGSEGV, sighandler);
978 #ifdef SIGBUS
979     signal(SIGBUS, sighandler);
980 #endif
981     return func_ptr();
982 }
983 EOF
984 }
985
986 check_type(){
987     log check_type "$@"
988     headers=$1
989     type=$2
990     shift 2
991     disable_safe "$type"
992     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
993 }
994
995 check_struct(){
996     log check_struct "$@"
997     headers=$1
998     struct=$2
999     member=$3
1000     shift 3
1001     disable_safe "${struct}_${member}"
1002     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1003         enable_safe "${struct}_${member}"
1004 }
1005
1006 check_builtin(){
1007     log check_builtin "$@"
1008     name=$1
1009     headers=$2
1010     builtin=$3
1011     shift 3
1012     disable "$name"
1013     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1014 }
1015
1016 check_compile_assert(){
1017     log check_compile_assert "$@"
1018     name=$1
1019     headers=$2
1020     condition=$3
1021     shift 3
1022     disable "$name"
1023     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1024 }
1025
1026 require(){
1027     name="$1"
1028     header="$2"
1029     func="$3"
1030     shift 3
1031     check_lib $header $func "$@" || die "ERROR: $name not found"
1032 }
1033
1034 require2(){
1035     name="$1"
1036     headers="$2"
1037     func="$3"
1038     shift 3
1039     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1040 }
1041
1042 require_pkg_config(){
1043     pkg="$1"
1044     check_pkg_config "$@" || die "ERROR: $pkg not found"
1045     add_cflags    $(get_safe ${pkg}_cflags)
1046     add_extralibs $(get_safe ${pkg}_libs)
1047 }
1048
1049 hostcc_e(){
1050     eval printf '%s\\n' $HOSTCC_E
1051 }
1052
1053 hostcc_o(){
1054     eval printf '%s\\n' $HOSTCC_O
1055 }
1056
1057 check_host_cc(){
1058     log check_host_cc "$@"
1059     cat > $TMPC
1060     log_file $TMPC
1061     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1062 }
1063
1064 check_host_cpp(){
1065     log check_host_cpp "$@"
1066     cat > $TMPC
1067     log_file $TMPC
1068     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1069 }
1070
1071 check_host_cppflags(){
1072     log check_host_cppflags "$@"
1073     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1074 int x;
1075 EOF
1076 }
1077
1078 check_host_cflags(){
1079     log check_host_cflags "$@"
1080     set -- $($host_cflags_filter "$@")
1081     check_host_cc "$@" <<EOF && append host_cflags "$@"
1082 int x;
1083 EOF
1084 }
1085
1086 check_host_cpp_condition(){
1087     log check_host_cpp_condition "$@"
1088     header=$1
1089     condition=$2
1090     shift 2
1091     check_host_cpp "$@" <<EOF
1092 #include <$header>
1093 #if !($condition)
1094 #error "unsatisfied condition: $condition"
1095 #endif
1096 EOF
1097 }
1098
1099 apply(){
1100     file=$1
1101     shift
1102     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1103 }
1104
1105 cp_if_changed(){
1106     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1107     mkdir -p "$(dirname $2)"
1108     $cp_f "$1" "$2"
1109 }
1110
1111 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1112 # system-dependent things.
1113
1114 COMPONENT_LIST="
1115     bsfs
1116     decoders
1117     demuxers
1118     encoders
1119     filters
1120     hwaccels
1121     indevs
1122     muxers
1123     outdevs
1124     parsers
1125     protocols
1126 "
1127
1128 EXAMPLE_LIST="
1129     avcodec_example
1130     filter_audio_example
1131     metadata_example
1132     output_example
1133     transcode_aac_example
1134 "
1135
1136 EXTERNAL_LIBRARY_LIST="
1137     avisynth
1138     bzlib
1139     frei0r
1140     gnutls
1141     libbs2b
1142     libcdio
1143     libdc1394
1144     libfaac
1145     libfdk_aac
1146     libfontconfig
1147     libfreetype
1148     libgsm
1149     libilbc
1150     libmp3lame
1151     libopencore_amrnb
1152     libopencore_amrwb
1153     libopencv
1154     libopenjpeg
1155     libopus
1156     libpulse
1157     librtmp
1158     libschroedinger
1159     libspeex
1160     libtheora
1161     libtwolame
1162     libvo_aacenc
1163     libvo_amrwbenc
1164     libvorbis
1165     libvpx
1166     libwavpack
1167     libwebp
1168     libx264
1169     libx265
1170     libxavs
1171     libxvid
1172     openssl
1173     x11grab
1174     zlib
1175 "
1176
1177 FEATURE_LIST="
1178     gray
1179     hardcoded_tables
1180     runtime_cpudetect
1181     safe_bitstream_reader
1182     shared
1183     small
1184     sram
1185     static
1186     swscale_alpha
1187 "
1188
1189 HWACCEL_LIST="
1190     dxva2
1191     vaapi
1192     vda
1193     vdpau
1194 "
1195
1196 LIBRARY_LIST="
1197     avcodec
1198     avdevice
1199     avfilter
1200     avformat
1201     avresample
1202     avutil
1203     swscale
1204 "
1205
1206 LICENSE_LIST="
1207     gpl
1208     nonfree
1209     version3
1210 "
1211
1212 PROGRAM_LIST="
1213     avconv
1214     avplay
1215     avprobe
1216 "
1217
1218 SUBSYSTEM_LIST="
1219     dct
1220     doc
1221     error_resilience
1222     fft
1223     lsp
1224     lzo
1225     mdct
1226     network
1227     rdft
1228 "
1229
1230 CONFIG_LIST="
1231     $COMPONENT_LIST
1232     $EXAMPLE_LIST
1233     $EXTERNAL_LIBRARY_LIST
1234     $FEATURE_LIST
1235     $HWACCEL_LIST
1236     $LICENSE_LIST
1237     $LIBRARY_LIST
1238     $PROGRAM_LIST
1239     $SUBSYSTEM_LIST
1240     memalign_hack
1241     neon_clobber_test
1242     pic
1243     pod2man
1244     texi2html
1245     thumb
1246     xmm_clobber_test
1247 "
1248
1249 THREADS_LIST="
1250     pthreads
1251     w32threads
1252 "
1253
1254 ATOMICS_LIST="
1255     atomics_gcc
1256     atomics_suncc
1257     atomics_win32
1258 "
1259
1260 ARCH_LIST="
1261     aarch64
1262     alpha
1263     arm
1264     avr32
1265     avr32_ap
1266     avr32_uc
1267     bfin
1268     ia64
1269     m68k
1270     mips
1271     mips64
1272     parisc
1273     ppc
1274     ppc64
1275     s390
1276     sh4
1277     sparc
1278     sparc64
1279     tilegx
1280     tilepro
1281     tomi
1282     x86
1283     x86_32
1284     x86_64
1285 "
1286
1287 ARCH_EXT_LIST_ARM="
1288     armv5te
1289     armv6
1290     armv6t2
1291     armv8
1292     neon
1293     vfp
1294     vfpv3
1295 "
1296
1297 ARCH_EXT_LIST_X86_SIMD="
1298     amd3dnow
1299     amd3dnowext
1300     avx
1301     avx2
1302     fma3
1303     fma4
1304     mmx
1305     mmxext
1306     sse
1307     sse2
1308     sse3
1309     sse4
1310     sse42
1311     ssse3
1312     xop
1313 "
1314
1315 ARCH_EXT_LIST_PPC="
1316     altivec
1317     dcbzl
1318     ldbrx
1319     ppc4xx
1320 "
1321
1322 ARCH_EXT_LIST_X86="
1323     $ARCH_EXT_LIST_X86_SIMD
1324     cpunop
1325     i686
1326 "
1327
1328 ARCH_EXT_LIST="
1329     $ARCH_EXT_LIST_ARM
1330     $ARCH_EXT_LIST_PPC
1331     $ARCH_EXT_LIST_X86
1332     loongson
1333     vis
1334 "
1335
1336 ARCH_FEATURES="
1337     aligned_stack
1338     fast_64bit
1339     fast_clz
1340     fast_cmov
1341     local_aligned_8
1342     local_aligned_16
1343     simd_align_16
1344 "
1345
1346 BUILTIN_LIST="
1347     atomic_cas_ptr
1348     machine_rw_barrier
1349     MemoryBarrier
1350     mm_empty
1351     rdtsc
1352     sync_val_compare_and_swap
1353 "
1354 HAVE_LIST_CMDLINE="
1355     inline_asm
1356     symver
1357     yasm
1358 "
1359
1360 HAVE_LIST_PUB="
1361     bigendian
1362     fast_unaligned
1363 "
1364
1365 HEADERS_LIST="
1366     alsa_asoundlib_h
1367     altivec_h
1368     arpa_inet_h
1369     cdio_paranoia_h
1370     cdio_paranoia_paranoia_h
1371     dev_bktr_ioctl_bt848_h
1372     dev_bktr_ioctl_meteor_h
1373     dev_ic_bt8xx_h
1374     dev_video_bktr_ioctl_bt848_h
1375     dev_video_meteor_ioctl_meteor_h
1376     direct_h
1377     dlfcn_h
1378     dxva_h
1379     gsm_h
1380     io_h
1381     mach_mach_time_h
1382     machine_ioctl_bt848_h
1383     machine_ioctl_meteor_h
1384     malloc_h
1385     poll_h
1386     sndio_h
1387     soundcard_h
1388     sys_mman_h
1389     sys_param_h
1390     sys_resource_h
1391     sys_select_h
1392     sys_soundcard_h
1393     sys_time_h
1394     sys_un_h
1395     sys_videoio_h
1396     unistd_h
1397     windows_h
1398     winsock2_h
1399 "
1400
1401 INTRINSICS_LIST="
1402     intrinsics_neon
1403 "
1404
1405 MATH_FUNCS="
1406     atanf
1407     atan2f
1408     cbrtf
1409     cosf
1410     exp2
1411     exp2f
1412     expf
1413     isinf
1414     isnan
1415     ldexpf
1416     llrint
1417     llrintf
1418     log2
1419     log2f
1420     log10f
1421     lrint
1422     lrintf
1423     powf
1424     rint
1425     round
1426     roundf
1427     sinf
1428     trunc
1429     truncf
1430 "
1431
1432 SYSTEM_FUNCS="
1433     aligned_malloc
1434     closesocket
1435     CommandLineToArgvW
1436     CoTaskMemFree
1437     CryptGenRandom
1438     dlopen
1439     fcntl
1440     flt_lim
1441     fork
1442     getaddrinfo
1443     gethrtime
1444     getopt
1445     GetProcessAffinityMask
1446     GetProcessMemoryInfo
1447     GetProcessTimes
1448     getrusage
1449     getservbyport
1450     GetSystemTimeAsFileTime
1451     gettimeofday
1452     inet_aton
1453     isatty
1454     jack_port_get_latency_range
1455     localtime_r
1456     mach_absolute_time
1457     MapViewOfFile
1458     memalign
1459     mkstemp
1460     mmap
1461     mprotect
1462     nanosleep
1463     posix_memalign
1464     sched_getaffinity
1465     SetConsoleTextAttribute
1466     setmode
1467     setrlimit
1468     Sleep
1469     strerror_r
1470     strptime
1471     sysconf
1472     sysctl
1473     usleep
1474     VirtualAlloc
1475 "
1476
1477 TOOLCHAIN_FEATURES="
1478     as_dn_directive
1479     as_func
1480     asm_mod_q
1481     attribute_may_alias
1482     attribute_packed
1483     ebp_available
1484     ebx_available
1485     gnu_as
1486     ibm_asm
1487     inline_asm_labels
1488     pragma_deprecated
1489     symver_asm_label
1490     symver_gnu_asm
1491     vfp_args
1492     xform_asm
1493     xmm_clobbers
1494 "
1495
1496 TYPES_LIST="
1497     socklen_t
1498     struct_addrinfo
1499     struct_group_source_req
1500     struct_ip_mreq_source
1501     struct_ipv6_mreq
1502     struct_pollfd
1503     struct_rusage_ru_maxrss
1504     struct_sockaddr_in6
1505     struct_sockaddr_sa_len
1506     struct_sockaddr_storage
1507     struct_v4l2_frmivalenum_discrete
1508 "
1509
1510 HAVE_LIST="
1511     $ARCH_EXT_LIST
1512     $(add_suffix _external $ARCH_EXT_LIST)
1513     $(add_suffix _inline   $ARCH_EXT_LIST)
1514     $ARCH_FEATURES
1515     $ATOMICS_LIST
1516     $BUILTIN_LIST
1517     $HAVE_LIST_CMDLINE
1518     $HAVE_LIST_PUB
1519     $HEADERS_LIST
1520     $INTRINSICS_LIST
1521     $MATH_FUNCS
1522     $SYSTEM_FUNCS
1523     $THREADS_LIST
1524     $TOOLCHAIN_FEATURES
1525     $TYPES_LIST
1526     atomics_native
1527     dos_paths
1528     dxva2_lib
1529     libc_msvcrt
1530     libdc1394_1
1531     libdc1394_2
1532     sdl
1533     threads
1534     vdpau_x11
1535     xlib
1536 "
1537
1538 # options emitted with CONFIG_ prefix but not available on the command line
1539 CONFIG_EXTRA="
1540     aandcttables
1541     ac3dsp
1542     audio_frame_queue
1543     audiodsp
1544     blockdsp
1545     bswapdsp
1546     cabac
1547     dvprofile
1548     fdctdsp
1549     gcrypt
1550     golomb
1551     gplv3
1552     h263dsp
1553     h264chroma
1554     h264dsp
1555     h264pred
1556     h264qpel
1557     hpeldsp
1558     huffman
1559     huffyuvdsp
1560     huffyuvencdsp
1561     idctdsp
1562     iirfilter
1563     intrax8
1564     lgplv3
1565     lpc
1566     me_cmp
1567     mpeg_er
1568     mpegaudio
1569     mpegaudiodsp
1570     mpegvideo
1571     mpegvideoenc
1572     nettle
1573     pixblockdsp
1574     qpeldsp
1575     rangecoder
1576     riffdec
1577     riffenc
1578     rtpdec
1579     rtpenc_chain
1580     sinewin
1581     startcode
1582     tpeldsp
1583     videodsp
1584     vp3dsp
1585 "
1586
1587 CMDLINE_SELECT="
1588     $ARCH_EXT_LIST
1589     $CONFIG_LIST
1590     $HAVE_LIST_CMDLINE
1591     $THREADS_LIST
1592     asm
1593     cross_compile
1594     debug
1595     extra_warnings
1596     logging
1597     lto
1598     optimizations
1599 "
1600
1601 PATHS_LIST="
1602     bindir
1603     datadir
1604     docdir
1605     incdir
1606     libdir
1607     mandir
1608     prefix
1609     shlibdir
1610 "
1611
1612 CMDLINE_SET="
1613     $PATHS_LIST
1614     ar
1615     arch
1616     as
1617     build_suffix
1618     cc
1619     cpu
1620     cross_prefix
1621     dep_cc
1622     extra_version
1623     host_cc
1624     host_cflags
1625     host_ld
1626     host_ldflags
1627     host_libs
1628     host_os
1629     ld
1630     logfile
1631     malloc_prefix
1632     nm
1633     optflags
1634     pkg_config
1635     pkg_config_flags
1636     random_seed
1637     samples
1638     sysinclude
1639     sysroot
1640     target_exec
1641     target_os
1642     target_path
1643     target_samples
1644     toolchain
1645 "
1646
1647 CMDLINE_APPEND="
1648     extra_cflags
1649     host_cppflags
1650 "
1651
1652 # code dependency declarations
1653
1654 # architecture extensions
1655
1656 armv5te_deps="arm"
1657 armv6_deps="arm"
1658 armv6t2_deps="arm"
1659 armv8_deps="aarch64"
1660 neon_deps_any="aarch64 arm"
1661 intrinsics_neon_deps="neon"
1662 vfp_deps_any="aarch64 arm"
1663 vfpv3_deps="vfp"
1664
1665 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1666
1667 altivec_deps="ppc"
1668 ppc4xx_deps="ppc"
1669
1670 cpunop_deps="i686"
1671 x86_64_select="i686"
1672 x86_64_suggest="fast_cmov"
1673
1674 amd3dnow_deps="mmx"
1675 amd3dnowext_deps="amd3dnow"
1676 i686_deps="x86"
1677 mmx_deps="x86"
1678 mmxext_deps="mmx"
1679 sse_deps="mmxext"
1680 sse2_deps="sse"
1681 sse3_deps="sse2"
1682 ssse3_deps="sse3"
1683 sse4_deps="ssse3"
1684 sse42_deps="sse4"
1685 avx_deps="sse42"
1686 xop_deps="avx"
1687 fma3_deps="avx"
1688 fma4_deps="avx"
1689 avx2_deps="avx"
1690
1691 mmx_external_deps="yasm"
1692 mmx_inline_deps="inline_asm"
1693 mmx_suggest="mmx_external mmx_inline"
1694
1695 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1696     eval dep=\$${ext}_deps
1697     eval ${ext}_external_deps='"${dep}_external"'
1698     eval ${ext}_inline_deps='"${dep}_inline"'
1699     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1700 done
1701
1702 aligned_stack_if_any="aarch64 ppc x86"
1703 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1704 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1705 fast_unaligned_if_any="aarch64 ppc x86"
1706 simd_align_16_if_any="altivec neon sse"
1707
1708 # system capabilities
1709 log2_deps="!libc_msvcrt"
1710
1711 symver_if_any="symver_asm_label symver_gnu_asm"
1712
1713 # threading support
1714 atomics_gcc_if="sync_val_compare_and_swap"
1715 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1716 atomics_win32_if="MemoryBarrier"
1717 atomics_native_if_any="$ATOMICS_LIST"
1718 w32threads_deps="atomics_native"
1719 threads_if_any="$THREADS_LIST"
1720
1721 # subsystems
1722 dct_select="rdft"
1723 error_resilience_select="me_cmp"
1724 intrax8_select="error_resilience"
1725 mdct_select="fft"
1726 rdft_select="fft"
1727 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1728 mpeg_er_select="error_resilience"
1729 mpegaudio_select="mpegaudiodsp"
1730 mpegaudiodsp_select="dct"
1731 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1732 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1733
1734 # decoders / encoders
1735 aac_decoder_select="mdct sinewin"
1736 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1737 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1738 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
1739 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1740 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1741 aic_decoder_select="golomb idctdsp"
1742 alac_encoder_select="lpc"
1743 als_decoder_select="bswapdsp"
1744 amrnb_decoder_select="lsp"
1745 amrwb_decoder_select="lsp"
1746 amv_decoder_select="sp5x_decoder"
1747 ape_decoder_select="bswapdsp"
1748 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1749 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1750 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1751 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1752 atrac1_decoder_select="mdct sinewin"
1753 atrac3_decoder_select="mdct"
1754 atrac3p_decoder_select="mdct sinewin"
1755 bink_decoder_select="blockdsp hpeldsp"
1756 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1757 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1758 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1759 cllc_decoder_select="bswapdsp"
1760 comfortnoise_encoder_select="lpc"
1761 cook_decoder_select="audiodsp mdct sinewin"
1762 cscd_decoder_select="lzo"
1763 cscd_decoder_suggest="zlib"
1764 dca_decoder_select="mdct"
1765 dnxhd_decoder_select="blockdsp idctdsp"
1766 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1767 dvvideo_decoder_select="dvprofile idctdsp"
1768 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1769 dxa_decoder_deps="zlib"
1770 eac3_decoder_select="ac3_decoder"
1771 eac3_encoder_select="ac3_encoder"
1772 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1773 eatgq_decoder_select="aandcttables idctdsp"
1774 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1775 exr_decoder_deps="zlib"
1776 ffv1_decoder_select="golomb rangecoder"
1777 ffv1_encoder_select="rangecoder"
1778 ffvhuff_decoder_select="huffyuv_decoder"
1779 ffvhuff_encoder_select="huffyuv_encoder"
1780 fic_decoder_select="golomb"
1781 flac_decoder_select="golomb"
1782 flac_encoder_select="bswapdsp golomb lpc"
1783 flashsv_decoder_deps="zlib"
1784 flashsv_encoder_deps="zlib"
1785 flashsv2_decoder_deps="zlib"
1786 flv_decoder_select="h263_decoder"
1787 flv_encoder_select="h263_encoder"
1788 fourxm_decoder_select="blockdsp bswapdsp"
1789 fraps_decoder_select="bswapdsp huffman"
1790 g2m_decoder_deps="zlib"
1791 g2m_decoder_select="blockdsp idctdsp"
1792 h261_decoder_select="mpeg_er mpegvideo"
1793 h261_encoder_select="aandcttables mpegvideoenc"
1794 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1795 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1796 h263i_decoder_select="h263_decoder"
1797 h263p_encoder_select="h263_encoder"
1798 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1799 h264_decoder_suggest="error_resilience"
1800 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1801 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1802 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1803 iac_decoder_select="imc_decoder"
1804 imc_decoder_select="bswapdsp fft mdct sinewin"
1805 indeo3_decoder_select="hpeldsp"
1806 interplay_video_decoder_select="hpeldsp"
1807 jpegls_decoder_select="golomb mjpeg_decoder"
1808 jpegls_encoder_select="golomb"
1809 jv_decoder_select="blockdsp"
1810 lagarith_decoder_select="huffyuvdsp"
1811 ljpeg_encoder_select="aandcttables idctdsp"
1812 loco_decoder_select="golomb"
1813 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1814 metasound_decoder_select="lsp mdct sinewin"
1815 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1816 mjpeg_decoder_select="blockdsp hpeldsp idctdsp"
1817 mjpeg_encoder_select="aandcttables mpegvideoenc"
1818 mjpegb_decoder_select="mjpeg_decoder"
1819 mlp_decoder_select="mlp_parser"
1820 motionpixels_decoder_select="bswapdsp"
1821 mp1_decoder_select="mpegaudio"
1822 mp1float_decoder_select="mpegaudio"
1823 mp2_decoder_select="mpegaudio"
1824 mp2float_decoder_select="mpegaudio"
1825 mp3_decoder_select="mpegaudio"
1826 mp3adu_decoder_select="mpegaudio"
1827 mp3adufloat_decoder_select="mpegaudio"
1828 mp3float_decoder_select="mpegaudio"
1829 mp3on4_decoder_select="mpegaudio"
1830 mp3on4float_decoder_select="mpegaudio"
1831 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1832 mpc8_decoder_select="mpegaudiodsp"
1833 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1834 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1835 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1836 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1837 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1838 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1839 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1840 mpeg4_encoder_select="h263_encoder"
1841 msmpeg4v1_decoder_select="h263_decoder"
1842 msmpeg4v2_decoder_select="h263_decoder"
1843 msmpeg4v2_encoder_select="h263_encoder"
1844 msmpeg4v3_decoder_select="h263_decoder"
1845 msmpeg4v3_encoder_select="h263_encoder"
1846 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1847 mxpeg_decoder_select="mjpeg_decoder"
1848 nellymoser_decoder_select="mdct sinewin"
1849 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1850 nuv_decoder_select="idctdsp lzo"
1851 on2avc_decoder_select="mdct"
1852 opus_decoder_deps="avresample"
1853 png_decoder_deps="zlib"
1854 png_encoder_deps="zlib"
1855 png_encoder_select="huffyuvencdsp"
1856 prores_decoder_select="idctdsp"
1857 prores_encoder_select="fdctdsp"
1858 qcelp_decoder_select="lsp"
1859 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1860 ra_144_encoder_select="audio_frame_queue lpc"
1861 ralf_decoder_select="golomb"
1862 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1863 rv10_encoder_select="h263_encoder"
1864 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1865 rv20_encoder_select="h263_encoder"
1866 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1867 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1868 shorten_decoder_select="golomb"
1869 sipr_decoder_select="lsp"
1870 sp5x_decoder_select="mjpeg_decoder"
1871 svq1_decoder_select="hpeldsp"
1872 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1873 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1874 svq3_decoder_suggest="zlib"
1875 tak_decoder_select="audiodsp"
1876 theora_decoder_select="vp3_decoder"
1877 thp_decoder_select="mjpeg_decoder"
1878 tiff_decoder_suggest="zlib"
1879 tiff_encoder_suggest="zlib"
1880 truehd_decoder_select="mlp_decoder"
1881 truemotion2_decoder_select="bswapdsp"
1882 truespeech_decoder_select="bswapdsp"
1883 tscc_decoder_deps="zlib"
1884 twinvq_decoder_select="mdct lsp sinewin"
1885 utvideo_decoder_select="bswapdsp"
1886 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1887 vble_decoder_select="huffyuvdsp"
1888 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1889 vc1image_decoder_select="vc1_decoder"
1890 vorbis_decoder_select="mdct"
1891 vorbis_encoder_select="mdct"
1892 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1893 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1894 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1895 vp6a_decoder_select="vp6_decoder"
1896 vp6f_decoder_select="vp6_decoder"
1897 vp7_decoder_select="h264pred videodsp"
1898 vp8_decoder_select="h264pred videodsp"
1899 vp9_decoder_select="videodsp"
1900 webp_decoder_select="vp8_decoder"
1901 wmapro_decoder_select="mdct sinewin"
1902 wmav1_decoder_select="mdct sinewin"
1903 wmav1_encoder_select="mdct sinewin"
1904 wmav2_decoder_select="mdct sinewin"
1905 wmav2_encoder_select="mdct sinewin"
1906 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1907 wmv1_decoder_select="h263_decoder"
1908 wmv1_encoder_select="h263_encoder"
1909 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1910 wmv2_encoder_select="h263_encoder"
1911 wmv3_decoder_select="vc1_decoder"
1912 wmv3image_decoder_select="wmv3_decoder"
1913 zerocodec_decoder_deps="zlib"
1914 zlib_decoder_deps="zlib"
1915 zlib_encoder_deps="zlib"
1916 zmbv_decoder_deps="zlib"
1917 zmbv_encoder_deps="zlib"
1918
1919 # hardware accelerators
1920 dxva2_deps="dxva2api_h"
1921 vaapi_deps="va_va_h"
1922 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1923 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1924 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1925
1926 h263_vaapi_hwaccel_deps="vaapi"
1927 h263_vaapi_hwaccel_select="h263_decoder"
1928 h263_vdpau_hwaccel_deps="vdpau"
1929 h263_vdpau_hwaccel_select="h263_decoder"
1930 h264_dxva2_hwaccel_deps="dxva2"
1931 h264_dxva2_hwaccel_select="h264_decoder"
1932 h264_vaapi_hwaccel_deps="vaapi"
1933 h264_vaapi_hwaccel_select="h264_decoder"
1934 h264_vda_hwaccel_deps="vda"
1935 h264_vda_hwaccel_select="h264_decoder"
1936 h264_vda_old_hwaccel_deps="vda"
1937 h264_vda_old_hwaccel_select="h264_decoder"
1938 h264_vdpau_hwaccel_deps="vdpau"
1939 h264_vdpau_hwaccel_select="h264_decoder"
1940 mpeg1_vdpau_hwaccel_deps="vdpau"
1941 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1942 mpeg2_dxva2_hwaccel_deps="dxva2"
1943 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1944 mpeg2_vaapi_hwaccel_deps="vaapi"
1945 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1946 mpeg2_vdpau_hwaccel_deps="vdpau"
1947 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1948 mpeg4_vaapi_hwaccel_deps="vaapi"
1949 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1950 mpeg4_vdpau_hwaccel_deps="vdpau"
1951 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1952 vc1_dxva2_hwaccel_deps="dxva2"
1953 vc1_dxva2_hwaccel_select="vc1_decoder"
1954 vc1_vaapi_hwaccel_deps="vaapi"
1955 vc1_vaapi_hwaccel_select="vc1_decoder"
1956 vc1_vdpau_hwaccel_deps="vdpau"
1957 vc1_vdpau_hwaccel_select="vc1_decoder"
1958 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1959 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1960 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1961
1962 # parsers
1963 h264_parser_select="h264_decoder"
1964 mpegvideo_parser_select="mpegvideo"
1965 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
1966 vc1_parser_select="mpegvideo startcode"
1967
1968 # external libraries
1969 libfaac_encoder_deps="libfaac"
1970 libfaac_encoder_select="audio_frame_queue"
1971 libfdk_aac_decoder_deps="libfdk_aac"
1972 libfdk_aac_encoder_deps="libfdk_aac"
1973 libfdk_aac_encoder_select="audio_frame_queue"
1974 libgsm_decoder_deps="libgsm"
1975 libgsm_encoder_deps="libgsm"
1976 libgsm_ms_decoder_deps="libgsm"
1977 libgsm_ms_encoder_deps="libgsm"
1978 libilbc_decoder_deps="libilbc"
1979 libilbc_encoder_deps="libilbc"
1980 libmp3lame_encoder_deps="libmp3lame"
1981 libmp3lame_encoder_select="audio_frame_queue"
1982 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1983 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1984 libopencore_amrnb_encoder_select="audio_frame_queue"
1985 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1986 libopenjpeg_decoder_deps="libopenjpeg"
1987 libopenjpeg_encoder_deps="libopenjpeg"
1988 libopus_decoder_deps="libopus"
1989 libopus_encoder_deps="libopus"
1990 libopus_encoder_select="audio_frame_queue"
1991 libschroedinger_decoder_deps="libschroedinger"
1992 libschroedinger_encoder_deps="libschroedinger"
1993 libspeex_decoder_deps="libspeex"
1994 libspeex_encoder_deps="libspeex"
1995 libspeex_encoder_select="audio_frame_queue"
1996 libtheora_encoder_deps="libtheora"
1997 libtwolame_encoder_deps="libtwolame"
1998 libvo_aacenc_encoder_deps="libvo_aacenc"
1999 libvo_aacenc_encoder_select="audio_frame_queue"
2000 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2001 libvorbis_encoder_deps="libvorbis"
2002 libvorbis_encoder_select="audio_frame_queue"
2003 libvpx_vp8_decoder_deps="libvpx"
2004 libvpx_vp8_encoder_deps="libvpx"
2005 libvpx_vp9_decoder_deps="libvpx"
2006 libvpx_vp9_encoder_deps="libvpx"
2007 libwavpack_encoder_deps="libwavpack"
2008 libwebp_encoder_deps="libwebp"
2009 libx264_encoder_deps="libx264"
2010 libx265_encoder_deps="libx265"
2011 libxavs_encoder_deps="libxavs"
2012 libxvid_encoder_deps="libxvid"
2013
2014 # demuxers / muxers
2015 ac3_demuxer_select="ac3_parser"
2016 asf_demuxer_select="riffdec"
2017 asf_muxer_select="riffenc"
2018 asf_stream_muxer_select="asf_muxer"
2019 avi_demuxer_select="riffdec"
2020 avi_muxer_select="riffenc"
2021 avisynth_demuxer_deps="avisynth"
2022 avisynth_demuxer_select="riffdec"
2023 caf_demuxer_select="riffdec"
2024 dirac_demuxer_select="dirac_parser"
2025 dv_demuxer_select="dvprofile"
2026 dv_muxer_select="dvprofile"
2027 dxa_demuxer_select="riffdec"
2028 eac3_demuxer_select="ac3_parser"
2029 f4v_muxer_select="mov_muxer"
2030 flac_demuxer_select="flac_parser"
2031 hds_muxer_select="flv_muxer"
2032 hls_muxer_select="mpegts_muxer"
2033 ipod_muxer_select="mov_muxer"
2034 ismv_muxer_select="mov_muxer"
2035 matroska_audio_muxer_select="matroska_muxer"
2036 matroska_demuxer_select="riffdec"
2037 matroska_demuxer_suggest="bzlib lzo zlib"
2038 matroska_muxer_select="riffenc"
2039 mmf_muxer_select="riffenc"
2040 mov_demuxer_select="riffdec"
2041 mov_demuxer_suggest="zlib"
2042 mov_muxer_select="riffenc rtpenc_chain"
2043 mp3_demuxer_select="mpegaudio_parser"
2044 mp4_muxer_select="mov_muxer"
2045 mpegts_muxer_select="adts_muxer latm_muxer"
2046 mpegtsraw_demuxer_select="mpegts_demuxer"
2047 mxf_d10_muxer_select="mxf_muxer"
2048 nut_muxer_select="riffenc"
2049 nuv_demuxer_select="riffdec"
2050 oga_muxer_select="ogg_muxer"
2051 ogg_demuxer_select="golomb"
2052 opus_muxer_select="ogg_muxer"
2053 psp_muxer_select="mov_muxer"
2054 rtp_demuxer_select="sdp_demuxer"
2055 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2056 rtsp_demuxer_select="http_protocol rtpdec"
2057 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2058 sap_demuxer_select="sdp_demuxer"
2059 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2060 sdp_demuxer_select="rtpdec"
2061 smoothstreaming_muxer_select="ismv_muxer"
2062 spdif_muxer_select="aac_parser"
2063 spx_muxer_select="ogg_muxer"
2064 tak_demuxer_select="tak_parser"
2065 tg2_muxer_select="mov_muxer"
2066 tgp_muxer_select="mov_muxer"
2067 w64_demuxer_select="wav_demuxer"
2068 wav_demuxer_select="riffdec"
2069 wav_muxer_select="riffenc"
2070 webm_muxer_select="riffenc"
2071 wtv_demuxer_select="riffdec"
2072 xmv_demuxer_select="riffdec"
2073 xwma_demuxer_select="riffdec"
2074
2075 # indevs / outdevs
2076 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2077 alsa_outdev_deps="alsa_asoundlib_h"
2078 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2079 dv1394_indev_deps="dv1394"
2080 dv1394_indev_select="dv_demuxer"
2081 fbdev_indev_deps="linux_fb_h"
2082 jack_indev_deps="jack_jack_h pthreads"
2083 libcdio_indev_deps="libcdio"
2084 libdc1394_indev_deps="libdc1394"
2085 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2086 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2087 pulse_indev_deps="libpulse"
2088 sndio_indev_deps="sndio_h"
2089 sndio_outdev_deps="sndio_h"
2090 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2091 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2092 vfwcap_indev_extralibs="-lavicap32"
2093 x11grab_indev_deps="x11grab XShmCreateImage"
2094
2095 # protocols
2096 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2097 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2098 ffrtmpcrypt_protocol_select="tcp_protocol"
2099 ffrtmphttp_protocol_deps="!librtmp_protocol"
2100 ffrtmphttp_protocol_select="http_protocol"
2101 gopher_protocol_select="network"
2102 http_protocol_select="tcp_protocol"
2103 httpproxy_protocol_select="tcp_protocol"
2104 https_protocol_select="tls_protocol"
2105 icecast_protocol_select="http_protocol"
2106 librtmp_protocol_deps="librtmp"
2107 librtmpe_protocol_deps="librtmp"
2108 librtmps_protocol_deps="librtmp"
2109 librtmpt_protocol_deps="librtmp"
2110 librtmpte_protocol_deps="librtmp"
2111 mmsh_protocol_select="http_protocol"
2112 mmst_protocol_select="network"
2113 rtmp_protocol_deps="!librtmp_protocol"
2114 rtmp_protocol_select="tcp_protocol"
2115 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2116 rtmps_protocol_deps="!librtmp_protocol"
2117 rtmps_protocol_select="tls_protocol"
2118 rtmpt_protocol_select="ffrtmphttp_protocol"
2119 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2120 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2121 rtp_protocol_select="udp_protocol"
2122 sctp_protocol_deps="struct_sctp_event_subscribe"
2123 sctp_protocol_select="network"
2124 srtp_protocol_select="rtp_protocol"
2125 tcp_protocol_select="network"
2126 tls_protocol_deps_any="openssl gnutls"
2127 tls_protocol_select="tcp_protocol"
2128 udp_protocol_select="network"
2129 unix_protocol_deps="sys_un_h"
2130 unix_protocol_select="network"
2131
2132 # filters
2133 blackframe_filter_deps="gpl"
2134 boxblur_filter_deps="gpl"
2135 bs2b_filter_deps="libbs2b"
2136 cropdetect_filter_deps="gpl"
2137 delogo_filter_deps="gpl"
2138 drawtext_filter_deps="libfreetype"
2139 frei0r_filter_deps="frei0r dlopen"
2140 frei0r_filter_extralibs='$ldl'
2141 frei0r_src_filter_deps="frei0r dlopen"
2142 frei0r_src_filter_extralibs='$ldl'
2143 hqdn3d_filter_deps="gpl"
2144 interlace_filter_deps="gpl"
2145 ocv_filter_deps="libopencv"
2146 resample_filter_deps="avresample"
2147 scale_filter_deps="swscale"
2148
2149 # examples
2150 avcodec_example_deps="avcodec avutil"
2151 filter_audio_example_deps="avfilter avutil"
2152 metadata_example_deps="avformat avutil"
2153 output_example_deps="avcodec avformat avutil swscale"
2154 transcode_aac_example_deps="avcodec avformat avresample"
2155
2156 # libraries, in linking order
2157 avcodec_deps="avutil"
2158 avdevice_deps="avformat avcodec avutil"
2159 avfilter_deps="avutil"
2160 avformat_deps="avcodec avutil"
2161 avresample_deps="avutil"
2162 swscale_deps="avutil"
2163
2164 # programs
2165 avconv_deps="avcodec avfilter avformat avresample swscale"
2166 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2167                fps_filter null_filter resample_filter scale_filter
2168                setpts_filter trim_filter"
2169 avplay_deps="avcodec avformat avresample swscale sdl"
2170 avplay_libs='$sdl_libs'
2171 avplay_select="rdft"
2172 avprobe_deps="avcodec avformat"
2173
2174 # documentation
2175 pod2man_deps="doc"
2176 texi2html_deps="doc"
2177
2178 # default parameters
2179
2180 logfile="config.log"
2181
2182 # installation paths
2183 prefix_default="/usr/local"
2184 bindir_default='${prefix}/bin'
2185 datadir_default='${prefix}/share/avconv'
2186 docdir_default='${prefix}/share/doc/libav'
2187 incdir_default='${prefix}/include'
2188 libdir_default='${prefix}/lib'
2189 mandir_default='${prefix}/share/man'
2190 shlibdir_default="$libdir_default"
2191
2192 # toolchain
2193 ar_default="ar"
2194 cc_default="gcc"
2195 host_cc_default="gcc"
2196 cp_f="cp -f"
2197 ln_s="ln -s -f"
2198 nm_default="nm -g"
2199 objformat="elf"
2200 pkg_config_default=pkg-config
2201 ranlib="ranlib"
2202 strip="strip"
2203 yasmexe="yasm"
2204
2205 # machine
2206 arch_default=$(uname -m)
2207 cpu="generic"
2208 intrinsics="none"
2209
2210 # OS
2211 target_os_default=$(tolower $(uname -s))
2212 host_os=$target_os_default
2213
2214 # configurable options
2215 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2216
2217 enable asm
2218 enable debug
2219 enable doc
2220 enable optimizations
2221 enable safe_bitstream_reader
2222 enable static
2223 enable swscale_alpha
2224
2225 # By default, enable only those hwaccels that have no external dependencies.
2226 enable dxva2 vdpau
2227
2228 # build settings
2229 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2230 LIBPREF="lib"
2231 LIBSUF=".a"
2232 FULLNAME='$(NAME)$(BUILDSUF)'
2233 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2234 SLIBPREF="lib"
2235 SLIBSUF=".so"
2236 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2237 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2238 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2239 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2240 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2241 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2242
2243 asflags_filter=echo
2244 cflags_filter=echo
2245 ldflags_filter=echo
2246
2247 AS_C='-c'
2248 AS_O='-o $@'
2249 CC_C='-c'
2250 CC_E='-E -o $@'
2251 CC_O='-o $@'
2252 LD_O='-o $@'
2253 LD_LIB='-l%'
2254 LD_PATH='-L'
2255 HOSTCC_C='-c'
2256 HOSTCC_E='-E -o $@'
2257 HOSTCC_O='-o $@'
2258 HOSTLD_O='-o $@'
2259
2260 host_libs='-lm'
2261 host_cflags_filter=echo
2262 host_ldflags_filter=echo
2263
2264 target_path='$(CURDIR)'
2265
2266 # since the object filename is not given with the -MM flag, the compiler
2267 # is only able to print the basename, and we must add the path ourselves
2268 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2269 DEPFLAGS='-MM'
2270
2271 # find source path
2272 if test -f configure; then
2273     source_path=.
2274 else
2275     source_path=$(cd $(dirname "$0"); pwd)
2276     echo "$source_path" | grep -q '[[:blank:]]' &&
2277         die "Out of tree builds are impossible with whitespace in source path."
2278     test -e "$source_path/config.h" &&
2279         die "Out of tree builds are impossible with config.h in source dir."
2280 fi
2281
2282 for v in "$@"; do
2283     r=${v#*=}
2284     l=${v%"$r"}
2285     r=$(sh_quote "$r")
2286     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2287 done
2288
2289 find_things(){
2290     thing=$1
2291     pattern=$2
2292     file=$source_path/$3
2293     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2294 }
2295
2296 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2297 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2298 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2299 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2300 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2301 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2302 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2303 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2304 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2305 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2306 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2307
2308 ALL_COMPONENTS="
2309     $BSF_LIST
2310     $DECODER_LIST
2311     $DEMUXER_LIST
2312     $ENCODER_LIST
2313     $FILTER_LIST
2314     $HWACCEL_LIST
2315     $INDEV_LIST
2316     $MUXER_LIST
2317     $OUTDEV_LIST
2318     $PARSER_LIST
2319     $PROTOCOL_LIST
2320 "
2321
2322 for n in $COMPONENT_LIST; do
2323     v=$(toupper ${n%s})_LIST
2324     eval enable \$$v
2325     eval ${n}_if_any="\$$v"
2326 done
2327
2328 enable $ARCH_EXT_LIST
2329
2330 die_unknown(){
2331     echo "Unknown option \"$1\"."
2332     echo "See $0 --help for available options."
2333     exit 1
2334 }
2335
2336 print_3_columns() {
2337     cat | tr ' ' '\n' | sort | pr -r -3 -t
2338 }
2339
2340 show_list() {
2341     suffix=_$1
2342     shift
2343     echo $* | sed s/$suffix//g | print_3_columns
2344     exit 0
2345 }
2346
2347 rand_list(){
2348     IFS=', '
2349     set -- $*
2350     unset IFS
2351     for thing; do
2352         comp=${thing%:*}
2353         prob=${thing#$comp}
2354         prob=${prob#:}
2355         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2356         echo "prob ${prob:-0.5}"
2357         printf '%s\n' $comp
2358     done
2359 }
2360
2361 do_random(){
2362     action=$1
2363     shift
2364     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2365     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2366 }
2367
2368 for opt do
2369     optval="${opt#*=}"
2370     case "$opt" in
2371         --extra-ldflags=*)
2372             add_ldflags $optval
2373         ;;
2374         --extra-ldexeflags=*)
2375             add_ldexeflags $optval
2376         ;;
2377         --extra-libs=*)
2378             add_extralibs $optval
2379         ;;
2380         --disable-devices)
2381             disable $INDEV_LIST $OUTDEV_LIST
2382         ;;
2383         --enable-debug=*)
2384             debuglevel="$optval"
2385         ;;
2386         --disable-programs)
2387             disable $PROGRAM_LIST
2388         ;;
2389         --disable-everything)
2390             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2391         ;;
2392         --disable-all)
2393             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2394             disable $LIBRARY_LIST $PROGRAM_LIST doc
2395         ;;
2396         --enable-random|--disable-random)
2397             action=${opt%%-random}
2398             do_random ${action#--} $COMPONENT_LIST
2399         ;;
2400         --enable-random=*|--disable-random=*)
2401             action=${opt%%-random=*}
2402             do_random ${action#--} $optval
2403         ;;
2404         --enable-*=*|--disable-*=*)
2405             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2406             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2407             eval list=\$$(toupper $thing)_LIST
2408             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2409             $action $(filter "$name" $list)
2410         ;;
2411         --enable-avserver|--disable-avserver*)
2412             warn "avserver has been removed, the ${opt} option is only"\
2413                  "provided for compatibility and will be removed in the future"
2414         ;;
2415         --enable-?*|--disable-?*)
2416             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2417             if is_in $option $COMPONENT_LIST; then
2418                 test $action = disable && action=unset
2419                 eval $action \$$(toupper ${option%s})_LIST
2420             elif is_in $option $CMDLINE_SELECT; then
2421                 $action $option
2422             else
2423                 die_unknown $opt
2424             fi
2425         ;;
2426         --list-*)
2427             NAME="${opt#--list-}"
2428             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2429             NAME=${NAME%s}
2430             eval show_list $NAME \$$(toupper $NAME)_LIST
2431         ;;
2432         --help|-h) show_help
2433         ;;
2434         *)
2435             optname="${opt%%=*}"
2436             optname="${optname#--}"
2437             optname=$(echo "$optname" | sed 's/-/_/g')
2438             if is_in $optname $CMDLINE_SET; then
2439                 eval $optname='$optval'
2440             elif is_in $optname $CMDLINE_APPEND; then
2441                 append $optname "$optval"
2442             else
2443                 die_unknown $opt
2444             fi
2445         ;;
2446     esac
2447 done
2448
2449 disabled logging && logfile=/dev/null
2450
2451 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2452 set >> $logfile
2453
2454 test -n "$cross_prefix" && enable cross_compile
2455
2456 if enabled cross_compile; then
2457     test -n "$arch" && test -n "$target_os" ||
2458         die "Must specify target arch and OS when cross-compiling"
2459 fi
2460
2461 ar_default="${cross_prefix}${ar_default}"
2462 cc_default="${cross_prefix}${cc_default}"
2463 nm_default="${cross_prefix}${nm_default}"
2464 pkg_config_default="${cross_prefix}${pkg_config_default}"
2465 ranlib="${cross_prefix}${ranlib}"
2466 strip="${cross_prefix}${strip}"
2467
2468 sysinclude_default="${sysroot}/usr/include"
2469
2470 case "$toolchain" in
2471     clang-asan)
2472         cc_default="clang"
2473         add_cflags  -fsanitize=address
2474         add_ldflags -fsanitize=address
2475     ;;
2476     clang-tsan)
2477         cc_default="clang"
2478         add_cflags  -fsanitize=thread -pie
2479         add_ldflags -fsanitize=thread -pie
2480     ;;
2481     clang-usan)
2482         cc_default="clang"
2483         add_cflags  -fsanitize=undefined -O1
2484         add_ldflags -fsanitize=undefined
2485     ;;
2486     gcc-asan)
2487         cc_default="gcc"
2488         add_cflags  -fsanitize=address
2489         add_ldflags -fsanitize=address
2490     ;;
2491     gcc-tsan)
2492         cc_default="gcc"
2493         add_cflags  -fsanitize=thread -pie -fPIC
2494         add_ldflags -fsanitize=thread -pie -fPIC
2495     ;;
2496     gcc-usan)
2497         cc_default="gcc"
2498         add_cflags  -fsanitize=undefined
2499         add_ldflags -fsanitize=undefined
2500     ;;
2501     valgrind-massif)
2502         target_exec_default="valgrind"
2503         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2504     ;;
2505     valgrind-memcheck)
2506         target_exec_default="valgrind"
2507         target_exec_args="--track-origins=yes --leak-check=full"
2508     ;;
2509     msvc)
2510         # Check whether the current MSVC version needs the C99 converter.
2511         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2512         # support enough of C99 to build libav. Default to the new
2513         # behaviour if the regexp was unable to match anything, since this
2514         # successfully parses the version number of existing supported
2515         # versions that require the converter (MSVC 2010 and 2012).
2516         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2517         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2518             cc_default="cl"
2519         else
2520             cc_default="c99wrap cl"
2521         fi
2522         ld_default="link"
2523         nm_default="dumpbin -symbols"
2524         ar_default="lib"
2525         target_os_default="win32"
2526         # Use a relative path for TMPDIR. This makes sure all the
2527         # ffconf temp files are written with a relative path, avoiding
2528         # issues with msys/win32 path conversion for MSVC parameters
2529         # such as -Fo<file> or -out:<file>.
2530         TMPDIR=.
2531     ;;
2532     icl)
2533         cc_default="icl"
2534         ld_default="xilink"
2535         nm_default="dumpbin -symbols"
2536         ar_default="xilib"
2537         target_os_default="win32"
2538         TMPDIR=.
2539     ;;
2540     gcov)
2541         add_cflags  -fprofile-arcs -ftest-coverage
2542         add_ldflags -fprofile-arcs -ftest-coverage
2543     ;;
2544     hardened)
2545         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2546         add_ldflags -Wl,-z,relro -Wl,-z,now
2547     ;;
2548     ?*)
2549         die "Unknown toolchain $toolchain"
2550     ;;
2551 esac
2552
2553 set_default arch cc pkg_config sysinclude target_exec target_os
2554 enabled cross_compile || host_cc_default=$cc
2555 set_default host_cc
2556
2557 if ! $pkg_config --version >/dev/null 2>&1; then
2558     warn "$pkg_config not found, library detection may fail."
2559     pkg_config=false
2560 fi
2561
2562 exesuf() {
2563     case $1 in
2564         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2565     esac
2566 }
2567
2568 EXESUF=$(exesuf $target_os)
2569 HOSTEXESUF=$(exesuf $host_os)
2570
2571 # set temporary file name
2572 : ${TMPDIR:=$TEMPDIR}
2573 : ${TMPDIR:=$TMP}
2574 : ${TMPDIR:=/tmp}
2575
2576 if ! check_cmd mktemp -u XXXXXX; then
2577     # simple replacement for missing mktemp
2578     # NOT SAFE FOR GENERAL USE
2579     mktemp(){
2580         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2581     }
2582 fi
2583
2584 tmpfile(){
2585     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2586         (set -C; exec > $tmp) 2>/dev/null ||
2587         die "Unable to create temporary file in $TMPDIR."
2588     append TMPFILES $tmp
2589     eval $1=$tmp
2590 }
2591
2592 trap 'rm -f -- $TMPFILES' EXIT
2593
2594 tmpfile TMPASM .asm
2595 tmpfile TMPC   .c
2596 tmpfile TMPE   $EXESUF
2597 tmpfile TMPH   .h
2598 tmpfile TMPO   .o
2599 tmpfile TMPS   .S
2600 tmpfile TMPSH  .sh
2601 tmpfile TMPV   .ver
2602
2603 unset -f mktemp
2604
2605 chmod +x $TMPE
2606
2607 # make sure we can execute files in $TMPDIR
2608 cat > $TMPSH 2>> $logfile <<EOF
2609 #! /bin/sh
2610 EOF
2611 chmod +x $TMPSH >> $logfile 2>&1
2612 if ! $TMPSH >> $logfile 2>&1; then
2613     cat <<EOF
2614 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2615 variable to another directory and make sure that it is not mounted noexec.
2616 EOF
2617     die "Sanity test failed."
2618 fi
2619
2620 armasm_flags(){
2621     for flag; do
2622         case $flag in
2623             # Filter out MSVC cl.exe options from cflags that shouldn't
2624             # be passed to gas-preprocessor
2625             -M[TD]*)                                            ;;
2626             *)                  echo $flag                      ;;
2627         esac
2628    done
2629 }
2630
2631 ccc_flags(){
2632     for flag; do
2633         case $flag in
2634             -std=c99)           echo -c99                       ;;
2635             -mcpu=*)            echo -arch ${flag#*=}           ;;
2636             -mieee)             echo -ieee                      ;;
2637             -O*|-fast)          echo $flag                      ;;
2638             -fno-math-errno)    echo -assume nomath_errno       ;;
2639             -g)                 echo -g3                        ;;
2640             -Wall)              echo -msg_enable level2         ;;
2641             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2642             -Wl,*)              echo $flag                      ;;
2643             -f*|-W*)                                            ;;
2644             *)                  echo $flag                      ;;
2645         esac
2646    done
2647 }
2648
2649 cparser_flags(){
2650     for flag; do
2651         case $flag in
2652             -Wno-switch)             echo -Wno-switch-enum ;;
2653             -Wno-format-zero-length) ;;
2654             -Wdisabled-optimization) ;;
2655             -Wno-pointer-sign)       echo -Wno-other ;;
2656             *)                       echo $flag ;;
2657         esac
2658     done
2659 }
2660
2661 msvc_common_flags(){
2662     for flag; do
2663         case $flag in
2664             # In addition to specifying certain flags under the compiler
2665             # specific filters, they must be specified here as well or else the
2666             # generic catch all at the bottom will print the original flag.
2667             -Wall)                ;;
2668             -std=c99)             ;;
2669             # Common flags
2670             -fomit-frame-pointer) ;;
2671             -g)                   echo -Z7 ;;
2672             -fno-math-errno)      ;;
2673             -fno-common)          ;;
2674             -fno-signed-zeros)    ;;
2675             -fPIC)                ;;
2676             -mthumb)              ;;
2677             -march=*)             ;;
2678             -lz)                  echo zlib.lib ;;
2679             -lavifil32)           echo vfw32.lib ;;
2680             -lavicap32)           echo vfw32.lib user32.lib ;;
2681             -l*)                  echo ${flag#-l}.lib ;;
2682             *)                    echo $flag ;;
2683         esac
2684     done
2685 }
2686
2687 msvc_flags(){
2688     msvc_common_flags "$@"
2689     for flag; do
2690         case $flag in
2691             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2692                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2693                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2694                                        -wd4273 -wd4701 ;;
2695         esac
2696     done
2697 }
2698
2699 icl_flags(){
2700     msvc_common_flags "$@"
2701     for flag; do
2702         case $flag in
2703             # Despite what Intel's documentation says -Wall, which is supported
2704             # on Windows, does enable remarks so disable them here.
2705             -Wall)                echo $flag -Qdiag-disable:remark ;;
2706             -std=c99)             echo -Qstd=c99 ;;
2707         esac
2708     done
2709 }
2710
2711 pgi_flags(){
2712     for flag; do
2713         case $flag in
2714             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2715             -fomit-frame-pointer) echo -Mnoframe ;;
2716             -g)                   echo -gopt ;;
2717             *)                    echo $flag ;;
2718         esac
2719     done
2720 }
2721
2722 suncc_flags(){
2723     for flag; do
2724         case $flag in
2725             -march=*|-mcpu=*)
2726                 case "${flag#*=}" in
2727                     native)                   echo -xtarget=native       ;;
2728                     v9|niagara)               echo -xarch=sparc          ;;
2729                     ultrasparc)               echo -xarch=sparcvis       ;;
2730                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2731                     i586|pentium)             echo -xchip=pentium        ;;
2732                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2733                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2734                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2735                     pentium4*)          echo -xtarget=pentium4           ;;
2736                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2737                     *-sse3)             echo -xarch=sse3                 ;;
2738                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2739                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2740                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2741                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2742                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2743                     k8|opteron|athlon64|athlon-fx)
2744                                                echo -xarch=sse2a         ;;
2745                     athlon*)                   echo -xarch=pentium_proa  ;;
2746                 esac
2747                 ;;
2748             -std=c99)             echo -xc99              ;;
2749             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2750             -fPIC)                echo -KPIC -xcode=pic32 ;;
2751             -W*,*)                echo $flag              ;;
2752             -f*-*|-W*|-mimpure-text)                      ;;
2753             -shared)              echo -G                 ;;
2754             *)                    echo $flag              ;;
2755         esac
2756     done
2757 }
2758
2759 tms470_flags(){
2760     for flag; do
2761         case $flag in
2762             -march=*|-mcpu=*)
2763                 case "${flag#*=}" in
2764                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2765                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2766                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2767                     armv6*|arm11*)          echo -mv=6   ;;
2768                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2769                                             echo -mv=5e  ;;
2770                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2771                 esac
2772                 ;;
2773             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2774             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2775             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2776             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2777             -msoft-float)   echo --float_support=vfplib       ;;
2778             -O[0-3]|-mf=*)  echo $flag                        ;;
2779             -g)             echo -g -mn                       ;;
2780             -pds=*)         echo $flag                        ;;
2781             -D*|-I*)        echo $flag                        ;;
2782             --gcc|--abi=*)  echo $flag                        ;;
2783             -me)            echo $flag                        ;;
2784         esac
2785     done
2786 }
2787
2788 probe_cc(){
2789     pfx=$1
2790     _cc=$2
2791
2792     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2793     unset _ld_o _ldflags _ld_lib _ld_path
2794     unset _depflags _DEPCMD _DEPFLAGS
2795     _flags_filter=echo
2796
2797     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2798         _type=llvm_gcc
2799         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2800         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2801         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2802         _cflags_speed='-O3'
2803         _cflags_size='-Os'
2804     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2805         _type=gcc
2806         gcc_version=$($_cc --version | head -n1)
2807         gcc_basever=$($_cc -dumpversion)
2808         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2809         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2810         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2811         if ! $_cc -dumpversion | grep -q '^2\.'; then
2812             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2813         fi
2814         _cflags_speed='-O3'
2815         _cflags_size='-Os'
2816     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2817         _type=icc
2818         _ident=$($_cc --version | head -n1)
2819         _depflags='-MMD'
2820         _cflags_speed='-O3'
2821         _cflags_size='-Os'
2822         _cflags_noopt='-O1'
2823     elif $_cc -v 2>&1 | grep -q xlc; then
2824         _type=xlc
2825         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2826         _cflags_speed='-O5'
2827         _cflags_size='-O5 -qcompact'
2828     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2829         _type=ccc
2830         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2831         _DEPFLAGS='-M'
2832         _cflags_speed='-fast'
2833         _cflags_size='-O1'
2834         _flags_filter=ccc_flags
2835     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2836         test -d "$sysroot" || die "No valid sysroot specified."
2837         _type=armcc
2838         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2839         armcc_conf="$PWD/armcc.conf"
2840         $_cc --arm_linux_configure                 \
2841              --arm_linux_config_file="$armcc_conf" \
2842              --configure_sysroot="$sysroot"        \
2843              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2844              die "Error creating armcc configuration file."
2845         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2846         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2847         as_default="${cross_prefix}gcc"
2848         _depflags='-MMD'
2849         _cflags_speed='-O3'
2850         _cflags_size='-Os'
2851     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2852         _type=tms470
2853         _ident=$($_cc -version | head -n1 | tr -s ' ')
2854         _flags='--gcc --abi=eabi -me'
2855         _cc_e='-ppl -fe=$@'
2856         _cc_o='-fe=$@'
2857         _depflags='-ppa -ppd=$(@:.o=.d)'
2858         _cflags_speed='-O3 -mf=5'
2859         _cflags_size='-O3 -mf=2'
2860         _flags_filter=tms470_flags
2861     elif $_cc -v 2>&1 | grep -q clang; then
2862         _type=clang
2863         _ident=$($_cc --version | head -n1)
2864         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2865         _cflags_speed='-O3'
2866         _cflags_size='-Os'
2867     elif $_cc -V 2>&1 | grep -q Sun; then
2868         _type=suncc
2869         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2870         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2871         _DEPFLAGS='-xM1 -xc99'
2872         _ldflags='-std=c99'
2873         _cflags_speed='-O5'
2874         _cflags_size='-O5 -xspace'
2875         _flags_filter=suncc_flags
2876     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2877         _type=pathscale
2878         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2879         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2880         _cflags_speed='-O2'
2881         _cflags_size='-Os'
2882         _flags_filter='filter_out -Wdisabled-optimization'
2883     elif $_cc -v 2>&1 | grep -q Open64; then
2884         _type=open64
2885         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2886         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2887         _cflags_speed='-O2'
2888         _cflags_size='-Os'
2889         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2890     elif $_cc -V 2>&1 | grep -q Portland; then
2891         _type=pgi
2892         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2893         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2894         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2895         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2896         _cflags_noopt="-O1"
2897         _flags_filter=pgi_flags
2898     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
2899         _type=armasm
2900         _ident=$($_cc | head -n1)
2901         # 4509: "This form of conditional instruction is deprecated"
2902         _flags="-nologo -ignore 4509"
2903         _flags_filter=armasm_flags
2904     elif $_cc 2>&1 | grep -q Microsoft; then
2905         _type=msvc
2906         _ident=$($cc 2>&1 | head -n1)
2907         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2908         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2909         _cflags_speed="-O2"
2910         _cflags_size="-O1"
2911         if $_cc 2>&1 | grep -q Linker; then
2912             _ld_o='-out:$@'
2913         else
2914             _ld_o='-Fe$@'
2915         fi
2916         _cc_o='-Fo$@'
2917         _cc_e='-P -Fi$@'
2918         _flags_filter=msvc_flags
2919         _ld_lib='lib%.a'
2920         _ld_path='-libpath:'
2921         _flags='-nologo'
2922         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2923         if [ $pfx = hostcc ]; then
2924             append _cflags -Dsnprintf=_snprintf
2925         fi
2926     elif $_cc 2>&1 | grep -q Intel; then
2927         _type=icl
2928         _ident=$($cc 2>&1 | head -n1)
2929         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2930         # Not only is O3 broken on 13.x+ but it is slower on all previous
2931         # versions (tested) as well.
2932         _cflags_speed="-O2"
2933         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2934         if $_cc 2>&1 | grep -q Linker; then
2935             _ld_o='-out:$@'
2936         else
2937             _ld_o='-Fe$@'
2938         fi
2939         _cc_o='-Fo$@'
2940         _cc_e='-P'
2941         _flags_filter=icl_flags
2942         _ld_lib='lib%.a'
2943         _ld_path='-libpath:'
2944         # -Qdiag-error to make icl error when seeing certain unknown arguments
2945         _flags='-nologo -Qdiag-error:4044,10157'
2946         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2947         # with MSVC which enables it by default.
2948         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2949         if [ $pfx = hostcc ]; then
2950             append _cflags -Dsnprintf=_snprintf
2951         fi
2952     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2953         _type=cparser
2954         _ident=$($_cc --version | head -n1)
2955         _depflags='-MMD'
2956         _cflags_speed='-O4'
2957         _cflags_size='-O2'
2958         _flags_filter=cparser_flags
2959     fi
2960
2961     eval ${pfx}_type=\$_type
2962     eval ${pfx}_ident=\$_ident
2963 }
2964
2965 set_ccvars(){
2966     eval ${1}_C=\${_cc_c-\${${1}_C}}
2967     eval ${1}_E=\${_cc_e-\${${1}_E}}
2968     eval ${1}_O=\${_cc_o-\${${1}_O}}
2969
2970     if [ -n "$_depflags" ]; then
2971         eval ${1}_DEPFLAGS=\$_depflags
2972     else
2973         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2974         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2975         eval DEP${1}FLAGS=\$_flags
2976     fi
2977 }
2978
2979 probe_cc cc "$cc"
2980 cflags_filter=$_flags_filter
2981 cflags_speed=$_cflags_speed
2982 cflags_size=$_cflags_size
2983 cflags_noopt=$_cflags_noopt
2984 add_cflags $_flags $_cflags
2985 cc_ldflags=$_ldflags
2986 set_ccvars CC
2987
2988 probe_cc hostcc "$host_cc"
2989 host_cflags_filter=$_flags_filter
2990 add_host_cflags  $_flags $_cflags
2991 set_ccvars HOSTCC
2992
2993 test -n "$cc_type" && enable $cc_type ||
2994     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2995
2996 : ${as_default:=$cc}
2997 : ${dep_cc_default:=$cc}
2998 : ${ld_default:=$cc}
2999 : ${host_ld_default:=$host_cc}
3000 set_default ar as dep_cc ld host_ld
3001
3002 probe_cc as "$as"
3003 asflags_filter=$_flags_filter
3004 add_asflags $_flags $_cflags
3005 set_ccvars AS
3006
3007 probe_cc ld "$ld"
3008 ldflags_filter=$_flags_filter
3009 add_ldflags $_flags $_ldflags
3010 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3011 LD_O=${_ld_o-$LD_O}
3012 LD_LIB=${_ld_lib-$LD_LIB}
3013 LD_PATH=${_ld_path-$LD_PATH}
3014
3015 probe_cc hostld "$host_ld"
3016 host_ldflags_filter=$_flags_filter
3017 add_host_ldflags $_flags $_ldflags
3018 HOSTLD_O=${_ld_o-$HOSTLD_O}
3019
3020 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3021     probe_cc depcc "$dep_cc"
3022     CCDEP=${_DEPCMD:-$DEPCMD}
3023     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3024     DEPCCFLAGS=$_flags
3025 fi
3026
3027 if $ar 2>&1 | grep -q Microsoft; then
3028     arflags="-nologo"
3029     ar_o='-out:$@'
3030 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3031     arflags="rq"
3032     ar_o='$@'
3033 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3034     arflags='-Xany -r -c'
3035     ar_o='$@'
3036 else
3037     arflags="rc"
3038     ar_o='$@'
3039 fi
3040
3041 add_cflags $extra_cflags
3042 add_asflags $extra_cflags
3043
3044 if test -n "$sysroot"; then
3045     case "$cc_type" in
3046         gcc|llvm_gcc|clang)
3047             add_cppflags --sysroot="$sysroot"
3048             add_ldflags --sysroot="$sysroot"
3049         ;;
3050         tms470)
3051             add_cppflags -I"$sysinclude"
3052             add_ldflags  --sysroot="$sysroot"
3053         ;;
3054     esac
3055 fi
3056
3057 if test "$cpu" = host; then
3058     enabled cross_compile &&
3059         die "--cpu=host makes no sense when cross-compiling."
3060
3061     case "$cc_type" in
3062         gcc|llvm_gcc)
3063             check_native(){
3064                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3065                 sed -n "/cc1.*$1=/{
3066                             s/.*$1=\\([^ ]*\\).*/\\1/
3067                             p
3068                             q
3069                         }" $TMPE
3070             }
3071             cpu=$(check_native -march || check_native -mcpu)
3072         ;;
3073     esac
3074
3075     test "${cpu:-host}" = host &&
3076         die "--cpu=host not supported with compiler $cc"
3077 fi
3078
3079 # Deal with common $arch aliases
3080 case "$arch" in
3081     aarch64|arm64)
3082         arch="aarch64"
3083     ;;
3084     arm*)
3085         arch="arm"
3086     ;;
3087     mips*|IP*)
3088         arch="mips"
3089     ;;
3090     parisc*|hppa*)
3091         arch="parisc"
3092     ;;
3093     "Power Macintosh"|ppc*|powerpc*)
3094         arch="ppc"
3095     ;;
3096     s390|s390x)
3097         arch="s390"
3098     ;;
3099     sh4|sh)
3100         arch="sh4"
3101     ;;
3102     sun4u|sparc*)
3103         arch="sparc"
3104     ;;
3105     tilegx|tile-gx)
3106         arch="tilegx"
3107     ;;
3108     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3109         arch="x86"
3110     ;;
3111 esac
3112
3113 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3114 enable $arch
3115
3116 # Add processor-specific flags
3117 if enabled aarch64; then
3118
3119     case $cpu in
3120         armv*)
3121             cpuflags="-march=$cpu"
3122         ;;
3123         *)
3124             cpuflags="-mcpu=$cpu"
3125         ;;
3126     esac
3127
3128 elif enabled alpha; then
3129
3130     cpuflags="-mcpu=$cpu"
3131
3132 elif enabled arm; then
3133
3134     check_arm_arch() {
3135         check_cpp_condition stddef.h \
3136             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3137             $cpuflags
3138     }
3139
3140     probe_arm_arch() {
3141         if   check_arm_arch 4;        then echo armv4;
3142         elif check_arm_arch 4T;       then echo armv4t;
3143         elif check_arm_arch 5;        then echo armv5;
3144         elif check_arm_arch 5E;       then echo armv5e;
3145         elif check_arm_arch 5T;       then echo armv5t;
3146         elif check_arm_arch 5TE;      then echo armv5te;
3147         elif check_arm_arch 5TEJ;     then echo armv5te;
3148         elif check_arm_arch 6;        then echo armv6;
3149         elif check_arm_arch 6J;       then echo armv6j;
3150         elif check_arm_arch 6K;       then echo armv6k;
3151         elif check_arm_arch 6Z;       then echo armv6z;
3152         elif check_arm_arch 6ZK;      then echo armv6zk;
3153         elif check_arm_arch 6T2;      then echo armv6t2;
3154         elif check_arm_arch 7;        then echo armv7;
3155         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3156         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3157         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3158         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3159         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3160         fi
3161     }
3162
3163     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3164
3165     case $cpu in
3166         armv*)
3167             cpuflags="-march=$cpu"
3168             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3169         ;;
3170         *)
3171             cpuflags="-mcpu=$cpu"
3172             case $cpu in
3173                 cortex-a*)                               subarch=armv7a  ;;
3174                 cortex-r*)                               subarch=armv7r  ;;
3175                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3176                 arm11*)                                  subarch=armv6   ;;
3177                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3178                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3179                 *)                             subarch=$(probe_arm_arch) ;;
3180             esac
3181         ;;
3182     esac
3183
3184     case "$subarch" in
3185         armv5t*)    enable fast_clz                ;;
3186         armv[6-8]*) enable fast_clz fast_unaligned ;;
3187     esac
3188
3189 elif enabled avr32; then
3190
3191     case $cpu in
3192         ap7[02]0[0-2])
3193             subarch="avr32_ap"
3194             cpuflags="-mpart=$cpu"
3195         ;;
3196         ap)
3197             subarch="avr32_ap"
3198             cpuflags="-march=$cpu"
3199         ;;
3200         uc3[ab]*)
3201             subarch="avr32_uc"
3202             cpuflags="-mcpu=$cpu"
3203         ;;
3204         uc)
3205             subarch="avr32_uc"
3206             cpuflags="-march=$cpu"
3207         ;;
3208     esac
3209
3210 elif enabled bfin; then
3211
3212     cpuflags="-mcpu=$cpu"
3213
3214 elif enabled mips; then
3215
3216     cpuflags="-march=$cpu"
3217
3218 elif enabled ppc; then
3219
3220     disable ldbrx
3221
3222     case $(tolower $cpu) in
3223         601|ppc601|powerpc601)
3224             cpuflags="-mcpu=601"
3225             disable altivec
3226         ;;
3227         603*|ppc603*|powerpc603*)
3228             cpuflags="-mcpu=603"
3229             disable altivec
3230         ;;
3231         604*|ppc604*|powerpc604*)
3232             cpuflags="-mcpu=604"
3233             disable altivec
3234         ;;
3235         g3|75*|ppc75*|powerpc75*)
3236             cpuflags="-mcpu=750"
3237             disable altivec
3238         ;;
3239         g4|745*|ppc745*|powerpc745*)
3240             cpuflags="-mcpu=7450"
3241         ;;
3242         74*|ppc74*|powerpc74*)
3243             cpuflags="-mcpu=7400"
3244         ;;
3245         g5|970|ppc970|powerpc970)
3246             cpuflags="-mcpu=970"
3247         ;;
3248         power[3-7]*)
3249             cpuflags="-mcpu=$cpu"
3250         ;;
3251         cell)
3252             cpuflags="-mcpu=cell"
3253             enable ldbrx
3254         ;;
3255         e500mc)
3256             cpuflags="-mcpu=e500mc"
3257             disable altivec
3258         ;;
3259         e500v2)
3260             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3261             disable altivec
3262             disable dcbzl
3263         ;;
3264         e500)
3265             cpuflags="-mcpu=8540 -mhard-float"
3266             disable altivec
3267             disable dcbzl
3268         ;;
3269     esac
3270
3271 elif enabled sparc; then
3272
3273     case $cpu in
3274         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3275             cpuflags="-mcpu=$cpu"
3276         ;;
3277         ultrasparc*|niagara[234])
3278             cpuflags="-mcpu=$cpu"
3279         ;;
3280     esac
3281
3282 elif enabled x86; then
3283
3284     case $cpu in
3285         i[345]86|pentium)
3286             cpuflags="-march=$cpu"
3287             disable mmx
3288         ;;
3289         # targets that do NOT support nopl and conditional mov (cmov)
3290         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3291             cpuflags="-march=$cpu"
3292             disable i686
3293         ;;
3294         # targets that do support nopl and conditional mov (cmov)
3295         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3296             cpuflags="-march=$cpu"
3297             enable i686
3298             enable fast_cmov
3299         ;;
3300         # targets that do support conditional mov but on which it's slow
3301         pentium4|pentium4m|prescott|nocona)
3302             cpuflags="-march=$cpu"
3303             enable i686
3304             disable fast_cmov
3305         ;;
3306     esac
3307
3308 fi
3309
3310 if [ "$cpu" != generic ]; then
3311     add_cflags  $cpuflags
3312     add_asflags $cpuflags
3313 fi
3314
3315 # compiler sanity check
3316 check_exec <<EOF
3317 int main(void){ return 0; }
3318 EOF
3319 if test "$?" != 0; then
3320     echo "$cc is unable to create an executable file."
3321     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3322         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3323         echo "Only do this if you know what cross compiling means."
3324     fi
3325     die "C compiler test failed."
3326 fi
3327
3328 add_cppflags -D_ISOC99_SOURCE
3329 check_cflags -std=c99
3330 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3331 #include <stdlib.h>
3332 EOF
3333 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3334 #include <stdlib.h>
3335 EOF
3336
3337 add_host_cppflags -D_ISOC99_SOURCE
3338 check_host_cflags -std=c99
3339 check_host_cflags -Wall
3340 check_host_cflags -O3
3341
3342 check_64bit(){
3343     arch32=$1
3344     arch64=$2
3345     expr=$3
3346     check_code cc "" "int test[2*($expr) - 1]" &&
3347         subarch=$arch64 || subarch=$arch32
3348 }
3349
3350 case "$arch" in
3351     aarch64|alpha|ia64)
3352         spic=$shared
3353     ;;
3354     mips)
3355         check_64bit mips mips64 '_MIPS_SIM > 1'
3356         spic=$shared
3357     ;;
3358     parisc)
3359         check_64bit parisc parisc64 'sizeof(void *) > 4'
3360         spic=$shared
3361     ;;
3362     ppc)
3363         check_64bit ppc ppc64 'sizeof(void *) > 4'
3364         spic=$shared
3365     ;;
3366     s390)
3367         check_64bit s390 s390x 'sizeof(void *) > 4'
3368         spic=$shared
3369     ;;
3370     sparc)
3371         check_64bit sparc sparc64 'sizeof(void *) > 4'
3372         spic=$shared
3373     ;;
3374     x86)
3375         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3376         if test "$subarch" = "x86_64"; then
3377             spic=$shared
3378         fi
3379     ;;
3380 esac
3381
3382 enable $subarch
3383 enabled spic && enable_weak pic
3384
3385 # OS specific
3386 case $target_os in
3387     aix)
3388         SHFLAGS=-shared
3389         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3390         enabled shared && add_ldflags -Wl,-brtl
3391         ;;
3392     android)
3393         disable symver
3394         SLIB_INSTALL_NAME='$(SLIBNAME)'
3395         SLIB_INSTALL_LINKS=
3396         # soname not set on purpose
3397         SHFLAGS=-shared
3398         ;;
3399     haiku)
3400         prefix_default="/boot/common"
3401         network_extralibs="-lnetwork"
3402         host_libs=
3403         ;;
3404     sunos)
3405         SHFLAGS='-shared -Wl,-h,$$(@F)'
3406         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3407         network_extralibs="-lsocket -lnsl"
3408         # When using suncc to build, the Solaris linker will mark
3409         # an executable with each instruction set encountered by
3410         # the Solaris assembler.  As our libraries contain their own
3411         # guards for processor-specific code, instead suppress
3412         # generation of the HWCAPS ELF section on Solaris x86 only.
3413         enabled_all suncc x86 &&
3414             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3415             add_ldflags -Wl,-M,mapfile
3416         nm_default='nm -P -g'
3417         ;;
3418     netbsd)
3419         disable symver
3420         oss_indev_extralibs="-lossaudio"
3421         oss_outdev_extralibs="-lossaudio"
3422         ;;
3423     openbsd|bitrig)
3424         disable symver
3425         SHFLAGS='-shared'
3426         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3427         SLIB_INSTALL_LINKS=
3428         oss_indev_extralibs="-lossaudio"
3429         oss_outdev_extralibs="-lossaudio"
3430         ;;
3431     dragonfly)
3432         disable symver
3433         ;;
3434     freebsd)
3435         ;;
3436     bsd/os)
3437         add_extralibs -lpoll -lgnugetopt
3438         ;;
3439     darwin)
3440         enabled ppc && add_asflags -force_cpusubtype_ALL
3441         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3442         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3443         add_ldflags -Wl,-dynamic,-search_paths_first
3444         SLIBSUF=".dylib"
3445         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3446         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3447         objformat="macho"
3448         enabled x86_64 && objformat="macho64"
3449         enabled_any pic shared ||
3450             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3451         ;;
3452     mingw32*)
3453         if test $target_os = "mingw32ce"; then
3454             disable network
3455         else
3456             target_os=mingw32
3457         fi
3458         LIBTARGET=i386
3459         if enabled x86_64; then
3460             LIBTARGET="i386:x86-64"
3461         elif enabled arm; then
3462             LIBTARGET=arm-wince
3463         fi
3464         check_ldflags -Wl,--nxcompat
3465         check_ldflags -Wl,--dynamicbase
3466         shlibdir_default="$bindir_default"
3467         SLIBPREF=""
3468         SLIBSUF=".dll"
3469         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3470         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3471         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3472         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3473         SLIB_INSTALL_LINKS=
3474         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3475         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3476         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3477         objformat="win32"
3478         dlltool="${cross_prefix}dlltool"
3479         ranlib=:
3480         enable dos_paths
3481         ;;
3482     win32|win64)
3483         disable symver
3484         if enabled shared; then
3485             # Link to the import library instead of the normal static library
3486             # for shared libs.
3487             LD_LIB='%.lib'
3488             # Cannot build both shared and static libs with MSVC or icl.
3489             disable static
3490         fi
3491         shlibdir_default="$bindir_default"
3492         SLIBPREF=""
3493         SLIBSUF=".dll"
3494         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3495         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3496         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3497         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3498         SLIB_INSTALL_LINKS=
3499         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3500         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3501         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3502         objformat="win32"
3503         ranlib=:
3504         enable dos_paths
3505         ;;
3506     cygwin*)
3507         target_os=cygwin
3508         shlibdir_default="$bindir_default"
3509         SLIBPREF="cyg"
3510         SLIBSUF=".dll"
3511         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3512         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3513         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3514         SLIB_INSTALL_LINKS=
3515         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3516         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3517         objformat="win32"
3518         enable dos_paths
3519         ;;
3520     *-dos|freedos|opendos)
3521         network_extralibs="-lsocket"
3522         objformat="coff"
3523         enable dos_paths
3524         add_cppflags -U__STRICT_ANSI__
3525         ;;
3526     linux)
3527         enable dv1394
3528         ;;
3529     irix*)
3530         target_os=irix
3531         ranlib="echo ignoring ranlib"
3532         ;;
3533     os/2*)
3534         ln_s="cp -f"
3535         objformat="aout"
3536         add_cppflags -D_GNU_SOURCE
3537         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3538         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3539         LIBSUF="_s.a"
3540         SLIBPREF=""
3541         SLIBSUF=".dll"
3542         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3543         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3544         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3545             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3546             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3547             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3548             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3549             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3550         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3551             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3552         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3553         enable dos_paths
3554         ;;
3555     gnu/kfreebsd)
3556         add_cppflags -D_BSD_SOURCE
3557         ;;
3558     gnu)
3559         ;;
3560     qnx)
3561         add_cppflags -D_QNX_SOURCE
3562         network_extralibs="-lsocket"
3563         ;;
3564     symbian)
3565         SLIBSUF=".dll"
3566         enable dos_paths
3567         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3568         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3569         add_ldflags -Wl,--target1-abs,--no-undefined \
3570                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3571                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3572         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3573                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3574                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3575         ;;
3576     osf1)
3577         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3578         ;;
3579     minix)
3580         ;;
3581     plan9)
3582         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3583                      -D_REENTRANT_SOURCE        \
3584                      -D_RESEARCH_SOURCE         \
3585                      -DFD_SETSIZE=96            \
3586                      -DHAVE_SOCK_OPTS
3587         add_compat strtod.o strtod=avpriv_strtod
3588         network_extralibs='-lbsd'
3589         exeobjs=compat/plan9/main.o
3590         cp_f='cp'
3591         ;;
3592     none)
3593         ;;
3594     *)
3595         die "Unknown OS '$target_os'."
3596         ;;
3597 esac
3598
3599 # determine libc flavour
3600
3601 probe_libc(){
3602     pfx=$1
3603     pfx_no_=${pfx%_}
3604     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3605     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3606         eval ${pfx}libc_type=uclibc
3607         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3608     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3609         eval ${pfx}libc_type=glibc
3610         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3611     # MinGW headers can be installed on Cygwin, so check for newlib first.
3612     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3613         eval ${pfx}libc_type=newlib
3614         add_${pfx}cppflags -U__STRICT_ANSI__
3615     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3616     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3617         eval ${pfx}libc_type=mingw64
3618         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3619         eval test \$${pfx_no_}cc_type = "gcc" &&
3620             add_${pfx}cppflags -D__printf__=__gnu_printf__
3621     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3622          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3623         eval ${pfx}libc_type=mingw32
3624         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3625             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3626             die "ERROR: MinGW32 runtime version must be >= 3.15."
3627         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3628         eval test \$${pfx_no_}cc_type = "gcc" &&
3629             add_${pfx}cppflags -D__printf__=__gnu_printf__
3630     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3631         eval ${pfx}libc_type=msvcrt
3632         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3633         # 0x601 by default unless something else is set by the user.
3634         # This can easily lead to us detecting functions only present
3635         # in such new versions and producing binaries requiring windows 7.0.
3636         # Therefore explicitly set the default to XP unless the user has
3637         # set something else on the command line.
3638         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3639             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3640     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3641         eval ${pfx}libc_type=klibc
3642     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3643         eval ${pfx}libc_type=bionic
3644     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3645         eval ${pfx}libc_type=solaris
3646         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3647     fi
3648 }
3649
3650 probe_libc
3651 test -n "$libc_type" && enable libc_$libc_type
3652 probe_libc host_
3653 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3654
3655 case $libc_type in
3656     bionic)
3657         add_compat strtod.o strtod=avpriv_strtod
3658         ;;
3659     msvcrt)
3660         add_compat strtod.o strtod=avpriv_strtod
3661         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3662                                      _snprintf=avpriv_snprintf  \
3663                                      vsnprintf=avpriv_vsnprintf
3664         ;;
3665 esac
3666
3667 # hacks for compiler/libc/os combinations
3668
3669 if enabled_all tms470 libc_glibc; then
3670     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3671     add_cppflags -D__USER_LABEL_PREFIX__=
3672     add_cppflags -D__builtin_memset=memset
3673     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3674     add_cflags   -pds=48    # incompatible redefinition of macro
3675 fi
3676
3677 if enabled_all ccc libc_glibc; then
3678     add_ldflags -Wl,-z,now  # calls to libots crash without this
3679 fi
3680
3681 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3682     add_cppflags '-I\$(SRC_PATH)/compat/float'
3683
3684 esc(){
3685     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3686 }
3687
3688 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3689
3690 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3691
3692 set_default $PATHS_LIST
3693 set_default nm
3694
3695 # we need to build at least one lib type
3696 if ! enabled_any static shared; then
3697     cat <<EOF
3698 At least one library type must be built.
3699 Specify --enable-static to build the static libraries or --enable-shared to
3700 build the shared libraries as well. To only build the shared libraries specify
3701 --disable-static in addition to --enable-shared.
3702 EOF
3703     exit 1;
3704 fi
3705
3706 die_license_disabled() {
3707     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3708 }
3709
3710 die_license_disabled gpl libcdio
3711 die_license_disabled gpl libx264
3712 die_license_disabled gpl libx265
3713 die_license_disabled gpl libxavs
3714 die_license_disabled gpl libxvid
3715 die_license_disabled gpl x11grab
3716
3717 die_license_disabled nonfree libfaac
3718 die_license_disabled nonfree libfdk_aac
3719 die_license_disabled nonfree openssl
3720
3721 die_license_disabled version3 libopencore_amrnb
3722 die_license_disabled version3 libopencore_amrwb
3723 die_license_disabled version3 libvo_aacenc
3724 die_license_disabled version3 libvo_amrwbenc
3725
3726 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3727
3728 disabled optimizations || check_cflags -fomit-frame-pointer
3729
3730 enable_weak_pic() {
3731     disabled pic && return
3732     enable pic
3733     add_cppflags -DPIC
3734     case "$target_os" in
3735     mingw*|cygwin*)
3736         ;;
3737     *)
3738         add_cflags -fPIC
3739         ;;
3740     esac
3741     add_asflags  -fPIC
3742 }
3743
3744 enabled pic && enable_weak_pic
3745
3746 check_cc <<EOF || die "Symbol mangling check failed."
3747 int ff_extern;
3748 EOF
3749 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3750 extern_prefix=${sym%%ff_extern*}
3751
3752 check_cc <<EOF && enable_weak inline_asm
3753 void foo(void) { __asm__ volatile ("" ::); }
3754 EOF
3755
3756 _restrict=
3757 for restrict_keyword in restrict __restrict__ __restrict; do
3758     check_cc <<EOF && _restrict=$restrict_keyword && break
3759 void foo(char * $restrict_keyword p);
3760 EOF
3761 done
3762
3763 check_cc <<EOF && enable pragma_deprecated
3764 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3765 EOF
3766
3767 check_cc <<EOF && enable attribute_packed
3768 struct { int x; } __attribute__((packed)) x;
3769 EOF
3770
3771 check_cc <<EOF && enable attribute_may_alias
3772 union { int x; } __attribute__((may_alias)) x;
3773 EOF
3774
3775 check_cc <<EOF || die "endian test failed"
3776 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3777 EOF
3778 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3779
3780 check_gas() {
3781     log "check_gas using '$as' as AS"
3782     # :vararg is used on aarch64, arm and ppc altivec
3783     check_as <<EOF || return 1
3784 .macro m n, y:vararg=0
3785 \n: .int \y
3786 .endm
3787 m x
3788 EOF
3789     # .altmacro is only used in arm asm
3790     ! enabled arm || check_as <<EOF || return 1
3791 .altmacro
3792 EOF
3793     enable gnu_as
3794     return 0
3795 }
3796
3797 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3798     nogas=:
3799     enabled_any arm aarch64 && nogas=die
3800     enabled_all ppc altivec && nogas=warn
3801     as_noop=-v
3802
3803     case $as_type in
3804         arm*) gaspp_as_type=armasm; as_noop=-h ;;
3805         gcc)  gaspp_as_type=gas ;;
3806         *)    gaspp_as_type=$as_type ;;
3807     esac
3808
3809     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3810
3811     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3812         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3813
3814     if ! check_gas ; then
3815         as=${gas:=$as}
3816         check_gas || \
3817             $nogas "GNU assembler not found, install/update gas-preprocessor"
3818     fi
3819
3820     check_as <<EOF && enable as_func
3821 .func test
3822 .endfunc
3823 EOF
3824 fi
3825
3826 check_inline_asm inline_asm_labels '"1:\n"'
3827
3828 if enabled aarch64; then
3829     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
3830     # internal assembler in clang 3.3 does not support this instruction
3831     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
3832     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
3833
3834     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3835
3836 elif enabled alpha; then
3837
3838     check_cflags -mieee
3839
3840 elif enabled arm; then
3841
3842     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3843     enabled thumb && check_cflags -mthumb || check_cflags -marm
3844
3845     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3846         enable vfp_args
3847     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3848         case "${cross_prefix:-$cc}" in
3849             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3850             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3851 __asm__ (".eabi_attribute 28, 1");
3852 int main(void) { return 0; }
3853 EOF
3854         esac
3855         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3856     fi
3857
3858     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3859     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3860     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3861     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3862     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3863     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3864
3865     [ $target_os = linux ] || [ $target_os = android ] ||
3866         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3867             $ARCH_EXT_LIST_ARM
3868
3869     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3870
3871     check_as <<EOF && enable as_dn_directive
3872 ra .dn d0.i16
3873 .unreq ra
3874 EOF
3875
3876     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3877
3878 elif enabled mips; then
3879
3880     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3881
3882 elif enabled parisc; then
3883
3884     if enabled gcc; then
3885         case $($cc -dumpversion) in
3886             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3887         esac
3888     fi
3889
3890 elif enabled ppc; then
3891
3892     enable local_aligned_8 local_aligned_16
3893
3894     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3895     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3896     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3897     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3898
3899     # AltiVec flags: The FSF version of GCC differs from the Apple version
3900     if enabled altivec; then
3901         check_cflags -maltivec -mabi=altivec &&
3902         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3903         check_cflags -faltivec
3904
3905         # check if our compiler supports Motorola AltiVec C API
3906         check_cc <<EOF || disable altivec
3907 $inc_altivec_h
3908 int main(void) {
3909     vector signed int v1 = (vector signed int) { 0 };
3910     vector signed int v2 = (vector signed int) { 1 };
3911     v1 = vec_add(v1, v2);
3912     return 0;
3913 }
3914 EOF
3915
3916         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3917     fi
3918
3919 elif enabled x86; then
3920
3921     check_builtin rdtsc    intrin.h   "__rdtsc()"
3922     check_builtin mm_empty mmintrin.h "_mm_empty()"
3923
3924     enable local_aligned_8 local_aligned_16
3925
3926     # check whether EBP is available on x86
3927     # As 'i' is stored on the stack, this program will crash
3928     # if the base pointer is used to access it because the
3929     # base pointer is cleared in the inline assembly code.
3930     check_exec_crash <<EOF && enable ebp_available
3931 volatile int i=0;
3932 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3933 return i;
3934 EOF
3935
3936     # check whether EBX is available on x86
3937     check_inline_asm ebx_available '""::"b"(0)' &&
3938         check_inline_asm ebx_available '"":::"%ebx"'
3939
3940     # check whether xmm clobbers are supported
3941     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3942
3943     # check whether binutils is new enough to compile SSSE3/MMXEXT
3944     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3945     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3946
3947     if ! disabled_any asm mmx yasm; then
3948         if check_cmd $yasmexe --version; then
3949             enabled x86_64 && yasm_extra="-m amd64"
3950             yasm_debug="-g dwarf2"
3951         elif check_cmd nasm -v; then
3952             yasmexe=nasm
3953             yasm_debug="-g -F dwarf"
3954             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3955         fi
3956
3957         YASMFLAGS="-f $objformat $yasm_extra"
3958         enabled pic               && append YASMFLAGS "-DPIC"
3959         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3960         case "$objformat" in
3961             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3962         esac
3963
3964         check_yasm "movbe ecx, [5]" && enable yasm ||
3965             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3966         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
3967         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
3968         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3969         check_yasm "CPU amdnop" || disable cpunop
3970     fi
3971
3972     case "$cpu" in
3973         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3974             disable fast_clz
3975         ;;
3976     esac
3977
3978 fi
3979
3980 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
3981
3982 check_ldflags -Wl,--as-needed
3983
3984 if check_func dlopen; then
3985     ldl=
3986 elif check_func dlopen -ldl; then
3987     ldl=-ldl
3988 fi
3989
3990 if ! disabled network; then
3991     check_func getaddrinfo $network_extralibs
3992     check_func getservbyport $network_extralibs
3993     check_func inet_aton $network_extralibs
3994
3995     check_type netdb.h "struct addrinfo"
3996     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3997     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3998     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3999     check_type poll.h "struct pollfd"
4000     check_type netinet/sctp.h "struct sctp_event_subscribe"
4001     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4002     check_type netinet/in.h "struct sockaddr_in6"
4003     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4004     check_type "sys/types.h sys/socket.h" socklen_t
4005
4006     # Prefer arpa/inet.h over winsock2
4007     if check_header arpa/inet.h ; then
4008         check_func closesocket
4009     elif check_header winsock2.h ; then
4010         check_func_headers winsock2.h closesocket -lws2 &&
4011             network_extralibs="-lws2" ||
4012         { check_func_headers winsock2.h closesocket -lws2_32 &&
4013             network_extralibs="-lws2_32"; } || disable winsock2_h network
4014         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4015
4016         check_type ws2tcpip.h socklen_t
4017         check_type ws2tcpip.h "struct addrinfo"
4018         check_type ws2tcpip.h "struct group_source_req"
4019         check_type ws2tcpip.h "struct ip_mreq_source"
4020         check_type ws2tcpip.h "struct ipv6_mreq"
4021         check_type winsock2.h "struct pollfd"
4022         check_struct winsock2.h "struct sockaddr" sa_len
4023         check_type ws2tcpip.h "struct sockaddr_in6"
4024         check_type ws2tcpip.h "struct sockaddr_storage"
4025     else
4026         disable network
4027     fi
4028 fi
4029
4030 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4031 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4032 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4033 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4034
4035 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4036 check_func  ${malloc_prefix}memalign            && enable memalign
4037 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4038
4039 check_func  fcntl
4040 check_func  fork
4041 check_func  gethrtime
4042 check_func  getopt
4043 check_func  getrusage
4044 check_func  gettimeofday
4045 check_func  isatty
4046 check_func  localtime_r
4047 check_func  mach_absolute_time
4048 check_func  mkstemp
4049 check_func  mmap
4050 check_func  mprotect
4051 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4052 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4053 check_func  sched_getaffinity
4054 check_func  setrlimit
4055 check_func  strerror_r
4056 check_func  strptime
4057 check_func  sysconf
4058 check_func  sysctl
4059 check_func  usleep
4060
4061 check_func_headers io.h setmode
4062 check_func_headers stdlib.h getenv
4063
4064 check_func_headers windows.h CoTaskMemFree -lole32
4065 check_func_headers windows.h GetProcessAffinityMask
4066 check_func_headers windows.h GetProcessTimes
4067 check_func_headers windows.h GetSystemTimeAsFileTime
4068 check_func_headers windows.h MapViewOfFile
4069 check_func_headers windows.h SetConsoleTextAttribute
4070 check_func_headers windows.h Sleep
4071 check_func_headers windows.h VirtualAlloc
4072
4073 check_header direct.h
4074 check_header dlfcn.h
4075 check_header dxva.h
4076 check_header dxva2api.h
4077 check_header io.h
4078 check_header mach/mach_time.h
4079 check_header malloc.h
4080 check_header poll.h
4081 check_header sys/mman.h
4082 check_header sys/param.h
4083 check_header sys/resource.h
4084 check_header sys/select.h
4085 check_header sys/time.h
4086 check_header sys/un.h
4087 check_header unistd.h
4088 check_header vdpau/vdpau.h
4089 check_header vdpau/vdpau_x11.h
4090 check_header VideoDecodeAcceleration/VDADecoder.h
4091 check_header windows.h
4092 check_header X11/extensions/XvMClib.h
4093
4094 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4095 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4096 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4097
4098 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4099
4100 if ! disabled w32threads && ! enabled pthreads; then
4101     check_func_headers "windows.h process.h" _beginthreadex &&
4102         enable w32threads || disable w32threads
4103 fi
4104
4105 # check for some common methods of building with pthread support
4106 # do this before the optional library checks as some of them require pthreads
4107 if ! disabled pthreads && ! enabled w32threads; then
4108     enable pthreads
4109     if check_func pthread_join -pthread; then
4110         add_cflags -pthread
4111         add_extralibs -pthread
4112     elif check_func pthread_join -pthreads; then
4113         add_cflags -pthreads
4114         add_extralibs -pthreads
4115     elif check_func pthread_join -lpthreadGC2; then
4116         add_extralibs -lpthreadGC2
4117     elif check_lib pthread.h pthread_join -lpthread; then
4118         :
4119     elif ! check_func pthread_join; then
4120         disable pthreads
4121     fi
4122 fi
4123
4124 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4125 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4126
4127 check_lib math.h sin -lm && LIBM="-lm"
4128 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4129
4130 atan2f_args=2
4131 ldexpf_args=2
4132 powf_args=2
4133
4134 for func in $MATH_FUNCS; do
4135     eval check_mathfunc $func \${${func}_args:-1}
4136 done
4137
4138 # these are off by default, so fail if requested and not available
4139 enabled avisynth          && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
4140                                { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
4141                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4142 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4143 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4144 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4145 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4146 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4147 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4148 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4149 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4150                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4151                                done || die "ERROR: libgsm not found"; }
4152 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4153 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4154 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4155 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4156 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4157 enabled libopenjpeg       && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4158                                { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4159 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4160 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4161 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4162 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4163 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4164 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4165 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4166 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4167 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4168 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4169 enabled libvpx            && {
4170     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4171                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4172     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
4173                                     die "ERROR: libvpx encoder version must be >=0.9.6"; }
4174     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4175     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4176 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4177 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4178 enabled libx264           && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4179                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4180                                die "ERROR: libx264 version must be >= 0.118."; }
4181 enabled libx265           && require_pkg_config x265 x265.h x265_encoder_encode &&
4182                              { check_cpp_condition x265.h "X265_BUILD >= 17" ||
4183                                die "ERROR: libx265 version must be >= 17."; }
4184 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4185 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4186 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4187                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4188                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4189                                die "ERROR: openssl not found"; }
4190
4191 if enabled gnutls; then
4192     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4193     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4194 fi
4195
4196 # libdc1394 check
4197 if enabled libdc1394; then
4198     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4199         enable libdc1394_2; } ||
4200     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4201         enable libdc1394_1; } ||
4202     die "ERROR: No version of libdc1394 found "
4203 fi
4204
4205 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4206     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4207     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4208     enable sdl
4209 fi
4210
4211 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4212 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4213
4214 check_header linux/fb.h
4215 check_header linux/videodev2.h
4216 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4217
4218 check_header sys/videoio.h
4219
4220 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4221 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4222 # w32api 3.12 had it defined wrong
4223 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4224
4225 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4226 { check_header dev/bktr/ioctl_meteor.h &&
4227   check_header dev/bktr/ioctl_bt848.h; } ||
4228 { check_header machine/ioctl_meteor.h &&
4229   check_header machine/ioctl_bt848.h; } ||
4230 { check_header dev/video/meteor/ioctl_meteor.h &&
4231   check_header dev/video/bktr/ioctl_bt848.h; } ||
4232 check_header dev/ic/bt8xx.h
4233
4234 check_header sndio.h
4235 check_header sys/soundcard.h
4236 check_header soundcard.h
4237
4238 enabled_any alsa_indev alsa_outdev &&
4239     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4240
4241 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4242     check_func jack_port_get_latency_range -ljack
4243
4244 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4245
4246 if enabled libcdio; then
4247     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4248     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4249 fi
4250
4251 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4252
4253 enabled x11grab                                           &&
4254 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4255 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4256 { enabled xlib || die "ERROR: Xlib not found"; }
4257
4258 enabled vdpau &&
4259     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4260     disable vdpau
4261
4262 enabled vdpau && enabled xlib &&
4263     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4264     prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4265     enable vdpau_x11
4266
4267 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4268
4269 # add some useful compiler flags if supported
4270 check_cflags -Wdeclaration-after-statement
4271 check_cflags -Wall
4272 check_cflags -Wdisabled-optimization
4273 check_cflags -Wpointer-arith
4274 check_cflags -Wredundant-decls
4275 check_cflags -Wcast-qual
4276 check_cflags -Wwrite-strings
4277 check_cflags -Wtype-limits
4278 check_cflags -Wundef
4279 check_cflags -Wmissing-prototypes
4280 check_cflags -Wstrict-prototypes
4281 enabled extra_warnings && check_cflags -Winline
4282
4283 check_disable_warning(){
4284     warning_flag=-W${1#-Wno-}
4285     test_cflags $warning_flag && add_cflags $1
4286 }
4287
4288 check_disable_warning -Wno-parentheses
4289 check_disable_warning -Wno-switch
4290 check_disable_warning -Wno-format-zero-length
4291 check_disable_warning -Wno-pointer-sign
4292
4293 # add some linker flags
4294 check_ldflags -Wl,--warn-common
4295 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4296 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4297
4298 # add some strip flags
4299 # -wN '..@*' is more selective than -x, but not available everywhere.
4300 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4301
4302 enabled neon_clobber_test &&
4303     check_ldflags -Wl,--wrap,avcodec_open2              \
4304                   -Wl,--wrap,avcodec_decode_audio4      \
4305                   -Wl,--wrap,avcodec_decode_video2      \
4306                   -Wl,--wrap,avcodec_decode_subtitle2   \
4307                   -Wl,--wrap,avcodec_encode_audio2      \
4308                   -Wl,--wrap,avcodec_encode_video2      \
4309                   -Wl,--wrap,avcodec_encode_subtitle    \
4310                   -Wl,--wrap,avresample_convert ||
4311     disable neon_clobber_test
4312
4313 enabled xmm_clobber_test &&
4314     check_ldflags -Wl,--wrap,avcodec_open2              \
4315                   -Wl,--wrap,avcodec_decode_audio4      \
4316                   -Wl,--wrap,avcodec_decode_video2      \
4317                   -Wl,--wrap,avcodec_decode_subtitle2   \
4318                   -Wl,--wrap,avcodec_encode_audio2      \
4319                   -Wl,--wrap,avcodec_encode_video2      \
4320                   -Wl,--wrap,avcodec_encode_subtitle    \
4321                   -Wl,--wrap,avresample_convert         \
4322                   -Wl,--wrap,sws_scale ||
4323     disable xmm_clobber_test
4324
4325 echo "X{};" > $TMPV
4326 if test_ldflags -Wl,--version-script,$TMPV; then
4327     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4328     check_cc <<EOF && enable symver_asm_label
4329 void ff_foo(void) __asm__ ("av_foo@VERSION");
4330 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4331 EOF
4332     check_cc <<EOF && enable symver_gnu_asm
4333 __asm__(".symver ff_foo,av_foo@VERSION");
4334 void ff_foo(void) {}
4335 EOF
4336 fi
4337
4338 if [ -z "$optflags" ]; then
4339     if enabled small; then
4340         optflags=$cflags_size
4341     elif enabled optimizations; then
4342         optflags=$cflags_speed
4343     else
4344         optflags=$cflags_noopt
4345     fi
4346 fi
4347
4348 check_optflags(){
4349     check_cflags "$@"
4350     enabled lto && check_ldflags "$@"
4351 }
4352
4353
4354 if enabled lto; then
4355     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4356     check_cflags  -flto
4357     check_ldflags -flto $cpuflags
4358 fi
4359
4360 check_optflags $optflags
4361 check_optflags -fno-math-errno
4362 check_optflags -fno-signed-zeros
4363
4364 if enabled icc; then
4365     # Just warnings, no remarks
4366     check_cflags -w1
4367     # -wd: Disable following warnings
4368     # 144, 167, 556: -Wno-pointer-sign
4369     # 1292: attribute "foo" ignored
4370     # 1419: external declaration in primary source file
4371     # 10006: ignoring unknown option -fno-signed-zeros
4372     # 10148: ignoring unknown option -Wno-parentheses
4373     # 10156: ignoring option '-W'; no argument required
4374     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4375     # 11030: Warning unknown option --as-needed
4376     # 10156: ignoring option '-export'; no argument required
4377     check_ldflags -wd10156,11030
4378     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4379     enable ebp_available
4380     if enabled x86_32; then
4381         icc_version=$($cc -dumpversion)
4382         test ${icc_version%%.*} -ge 11 &&
4383             check_cflags -falign-stack=maintain-16-byte ||
4384             disable aligned_stack
4385     fi
4386 elif enabled ccc; then
4387     # disable some annoying warnings
4388     add_cflags -msg_disable bitnotint
4389     add_cflags -msg_disable mixfuncvoid
4390     add_cflags -msg_disable nonstandcast
4391     add_cflags -msg_disable unsupieee
4392 elif enabled gcc; then
4393     check_optflags -fno-tree-vectorize
4394     check_cflags -Werror=implicit-function-declaration
4395     check_cflags -Werror=missing-prototypes
4396     check_cflags -Werror=return-type
4397     check_cflags -Werror=declaration-after-statement
4398     check_cflags -Werror=vla
4399     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4400 elif enabled llvm_gcc; then
4401     check_cflags -mllvm -stack-alignment=16
4402 elif enabled clang; then
4403     check_cflags -mllvm -stack-alignment=16
4404     check_cflags -Qunused-arguments
4405     check_cflags -Werror=implicit-function-declaration
4406     check_cflags -Werror=missing-prototypes
4407     check_cflags -Werror=return-type
4408 elif enabled cparser; then
4409     add_cflags -Wno-missing-variable-declarations
4410     add_cflags -Wno-empty-statement
4411 elif enabled armcc; then
4412     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4413     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4414     # 2523: use of inline assembly is deprecated
4415     add_cflags -W${armcc_opt},--diag_suppress=2523
4416     add_cflags -W${armcc_opt},--diag_suppress=1207
4417     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4418     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4419     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4420     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4421 elif enabled tms470; then
4422     add_cflags -pds=824 -pds=837
4423     disable inline_asm
4424 elif enabled pathscale; then
4425     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4426 elif enabled_any msvc icl; then
4427     enabled x86_32 && disable aligned_stack
4428     enabled_all x86_32 debug && add_cflags -Oy-
4429     enabled debug && add_ldflags -debug
4430     enable pragma_deprecated
4431     if enabled icl; then
4432         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4433         # (correctly) on icl 13.x.
4434         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4435             add_cflags -Qansi-alias
4436         # icl will pass the inline asm tests but inline asm is currently
4437         # not supported (build will fail)
4438         disable inline_asm
4439     fi
4440 fi
4441
4442 case $as_type in
4443     clang)
4444         add_asflags -Qunused-arguments
4445     ;;
4446 esac
4447
4448 case $ld_type in
4449     clang)
4450         check_ldflags -Qunused-arguments
4451     ;;
4452 esac
4453
4454 case $target_os in
4455     osf1)
4456         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4457     ;;
4458     plan9)
4459         add_cppflags -Dmain=plan9_main
4460     ;;
4461 esac
4462
4463 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4464
4465 check_deps $CONFIG_LIST       \
4466            $CONFIG_EXTRA      \
4467            $HAVE_LIST         \
4468            $ALL_COMPONENTS    \
4469
4470 enabled_all dxva2 CoTaskMemFree &&
4471     prepend avconv_libs $($ldflags_filter "-lole32") &&
4472     enable dxva2_lib
4473
4474 ! enabled_any memalign posix_memalign aligned_malloc &&
4475     enabled $simd_align_16 && enable memalign_hack
4476
4477 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4478
4479 for thread in $THREADS_LIST; do
4480     if enabled $thread; then
4481         test -n "$thread_type" &&
4482             die "ERROR: Only one thread type must be selected." ||
4483             thread_type="$thread"
4484     fi
4485 done
4486
4487 enabled zlib && add_cppflags -DZLIB_CONST
4488
4489 # conditional library dependencies, in linking order
4490 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
4491 enabled resample_filter && prepend avfilter_deps "avresample"
4492 enabled scale_filter    && prepend avfilter_deps "swscale"
4493
4494 enabled opus_decoder    && prepend avcodec_deps "avresample"
4495
4496 expand_deps(){
4497     lib_deps=${1}_deps
4498     eval "deps=\$$lib_deps"
4499     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4500     unique $lib_deps
4501 }
4502
4503 map 'expand_deps $v' $LIBRARY_LIST
4504
4505 echo "install prefix            $prefix"
4506 echo "source path               $source_path"
4507 echo "C compiler                $cc"
4508 echo "C library                 $libc_type"
4509 if test "$host_cc" != "$cc"; then
4510     echo "host C compiler           $host_cc"
4511     echo "host C library            $host_libc_type"
4512 fi
4513 echo "ARCH                      $arch ($cpu)"
4514 if test "$build_suffix" != ""; then
4515     echo "build suffix              $build_suffix"
4516 fi
4517 if test "$extra_version" != ""; then
4518     echo "version string suffix     $extra_version"
4519 fi
4520 echo "big-endian                ${bigendian-no}"
4521 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4522 if enabled x86; then
4523     echo "${yasmexe}                      ${yasm-no}"
4524     echo "MMX enabled               ${mmx-no}"
4525     echo "MMXEXT enabled            ${mmxext-no}"
4526     echo "3DNow! enabled            ${amd3dnow-no}"
4527     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4528     echo "SSE enabled               ${sse-no}"
4529     echo "SSSE3 enabled             ${ssse3-no}"
4530     echo "AVX enabled               ${avx-no}"
4531     echo "XOP enabled               ${xop-no}"
4532     echo "FMA3 enabled              ${fma3-no}"
4533     echo "FMA4 enabled              ${fma4-no}"
4534     echo "i686 features enabled     ${i686-no}"
4535     echo "CMOV is fast              ${fast_cmov-no}"
4536     echo "EBX available             ${ebx_available-no}"
4537     echo "EBP available             ${ebp_available-no}"
4538 fi
4539 if enabled aarch64; then
4540     echo "NEON enabled              ${neon-no}"
4541     echo "VFP enabled               ${vfp-no}"
4542 fi
4543 if enabled arm; then
4544     echo "ARMv5TE enabled           ${armv5te-no}"
4545     echo "ARMv6 enabled             ${armv6-no}"
4546     echo "ARMv6T2 enabled           ${armv6t2-no}"
4547     echo "VFP enabled               ${vfp-no}"
4548     echo "NEON enabled              ${neon-no}"
4549 fi
4550 if enabled ppc; then
4551     echo "AltiVec enabled           ${altivec-no}"
4552     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4553     echo "dcbzl available           ${dcbzl-no}"
4554 fi
4555 echo "debug symbols             ${debug-no}"
4556 echo "optimize for size         ${small-no}"
4557 echo "optimizations             ${optimizations-no}"
4558 echo "static                    ${static-no}"
4559 echo "shared                    ${shared-no}"
4560 echo "new filter support        ${avfilter-no}"
4561 echo "network support           ${network-no}"
4562 echo "threading support         ${thread_type-no}"
4563 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4564 echo "SDL support               ${sdl-no}"
4565 test -n "$random_seed" &&
4566     echo "random seed               ${random_seed}"
4567 echo
4568
4569 echo "External libraries:"
4570 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4571 echo
4572
4573 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4574     echo "Enabled ${type}s:"
4575     eval list=\$$(toupper $type)_LIST
4576     print_enabled '_*' $list | print_3_columns
4577     echo
4578 done
4579
4580 license="LGPL version 2.1 or later"
4581 if enabled nonfree; then
4582     license="nonfree and unredistributable"
4583 elif enabled gplv3; then
4584     license="GPL version 3 or later"
4585 elif enabled lgplv3; then
4586     license="LGPL version 3 or later"
4587 elif enabled gpl; then
4588     license="GPL version 2 or later"
4589 fi
4590
4591 echo "License: $license"
4592
4593 echo "Creating config.mak and config.h..."
4594
4595 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4596
4597 config_files="$TMPH config.mak"
4598
4599 cat > config.mak <<EOF
4600 # Automatically generated by configure - do not modify!
4601 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4602 prefix=$prefix
4603 LIBDIR=\$(DESTDIR)$libdir
4604 SHLIBDIR=\$(DESTDIR)$shlibdir
4605 INCDIR=\$(DESTDIR)$incdir
4606 BINDIR=\$(DESTDIR)$bindir
4607 DATADIR=\$(DESTDIR)$datadir
4608 DOCDIR=\$(DESTDIR)$docdir
4609 MANDIR=\$(DESTDIR)$mandir
4610 SRC_PATH=$source_path
4611 CC_IDENT=$cc_ident
4612 ARCH=$arch
4613 INTRINSICS=$intrinsics
4614 CC=$cc
4615 AS=$as
4616 LD=$ld
4617 DEPCC=$dep_cc
4618 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4619 DEPAS=$as
4620 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4621 YASM=$yasmexe
4622 DEPYASM=$yasmexe
4623 AR=$ar
4624 ARFLAGS=$arflags
4625 AR_O=$ar_o
4626 RANLIB=$ranlib
4627 STRIP=$strip
4628 LN_S=$ln_s
4629 CPPFLAGS=$CPPFLAGS
4630 CFLAGS=$CFLAGS
4631 ASFLAGS=$ASFLAGS
4632 AS_C=$AS_C
4633 AS_O=$AS_O
4634 CC_C=$CC_C
4635 CC_E=$CC_E
4636 CC_O=$CC_O
4637 LD_O=$LD_O
4638 LD_LIB=$LD_LIB
4639 LD_PATH=$LD_PATH
4640 DLLTOOL=$dlltool
4641 LDFLAGS=$LDFLAGS
4642 LDEXEFLAGS=$LDEXEFLAGS
4643 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4644 STRIPFLAGS=$STRIPFLAGS
4645 YASMFLAGS=$YASMFLAGS
4646 BUILDSUF=$build_suffix
4647 FULLNAME=$FULLNAME
4648 LIBPREF=$LIBPREF
4649 LIBSUF=$LIBSUF
4650 LIBNAME=$LIBNAME
4651 SLIBPREF=$SLIBPREF
4652 SLIBSUF=$SLIBSUF
4653 EXESUF=$EXESUF
4654 EXTRA_VERSION=$extra_version
4655 CCDEP=$CCDEP
4656 CCDEP_FLAGS=$CCDEP_FLAGS
4657 ASDEP=$ASDEP
4658 ASDEP_FLAGS=$ASDEP_FLAGS
4659 CC_DEPFLAGS=$CC_DEPFLAGS
4660 AS_DEPFLAGS=$AS_DEPFLAGS
4661 HOSTCC=$host_cc
4662 HOSTLD=$host_ld
4663 HOSTCFLAGS=$host_cflags
4664 HOSTCPPFLAGS=$host_cppflags
4665 HOSTEXESUF=$HOSTEXESUF
4666 HOSTLDFLAGS=$host_ldflags
4667 HOSTLIBS=$host_libs
4668 DEPHOSTCC=$host_cc
4669 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4670 HOSTCCDEP=$HOSTCCDEP
4671 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4672 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4673 HOSTCC_C=$HOSTCC_C
4674 HOSTCC_O=$HOSTCC_O
4675 HOSTLD_O=$HOSTLD_O
4676 TARGET_EXEC=$target_exec $target_exec_args
4677 TARGET_PATH=$target_path
4678 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4679 CFLAGS-avplay=$sdl_cflags
4680 ZLIB=$($ldflags_filter -lz)
4681 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4682 EXTRALIBS=$extralibs
4683 COMPAT_OBJS=$compat_objs
4684 EXEOBJS=$exeobjs
4685 INSTALL=install
4686 LIBTARGET=${LIBTARGET}
4687 SLIBNAME=${SLIBNAME}
4688 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4689 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4690 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4691 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4692 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4693 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4694 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4695 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4696 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4697 EOF
4698
4699 get_version(){
4700     lcname=lib${1}
4701     name=$(toupper $lcname)
4702     file=$source_path/$lcname/version.h
4703     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4704     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4705     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4706     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4707     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4708 }
4709
4710 map 'get_version $v' $LIBRARY_LIST
4711
4712 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
4713
4714 print_program_libs(){
4715     eval "program_libs=\$${1}_libs"
4716     eval echo "LIBS-${1}=${program_libs}" >> config.mak
4717 }
4718
4719 map 'print_program_libs $v' $PROGRAM_LIST
4720
4721 cat > $TMPH <<EOF
4722 /* Automatically generated by configure - do not modify! */
4723 #ifndef LIBAV_CONFIG_H
4724 #define LIBAV_CONFIG_H
4725 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4726 #define LIBAV_LICENSE "$(c_escape $license)"
4727 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4728 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4729 #define restrict $_restrict
4730 #define EXTERN_PREFIX "${extern_prefix}"
4731 #define EXTERN_ASM ${extern_prefix}
4732 #define SLIBSUF "$SLIBSUF"
4733 EOF
4734
4735 test -n "$malloc_prefix" &&
4736     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4737
4738 if enabled yasm; then
4739     append config_files $TMPASM
4740     printf '' >$TMPASM
4741 fi
4742
4743 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4744
4745 print_config ARCH_   "$config_files" $ARCH_LIST
4746 print_config HAVE_   "$config_files" $HAVE_LIST
4747 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4748                                      $CONFIG_EXTRA      \
4749                                      $ALL_COMPONENTS    \
4750
4751 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4752
4753 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4754 cp_if_changed $TMPH config.h
4755 touch .config
4756
4757 enabled yasm && cp_if_changed $TMPASM config.asm
4758
4759 cat > $TMPH <<EOF
4760 /* Generated by ffconf */
4761 #ifndef AVUTIL_AVCONFIG_H
4762 #define AVUTIL_AVCONFIG_H
4763 EOF
4764
4765 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4766
4767 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4768
4769 cp_if_changed $TMPH libavutil/avconfig.h
4770
4771 test -n "$WARNINGS" && printf "\n$WARNINGS"
4772
4773 # build pkg-config files
4774
4775 lib_version(){
4776     eval printf "\"lib${1} >= \$LIB$(toupper ${1})_VERSION, \""
4777 }
4778
4779 pkgconfig_generate(){
4780     name=$1
4781     shortname=${name#lib}${build_suffix}
4782     comment=$2
4783     version=$3
4784     libs=$4
4785     requires=$(map 'lib_version $v' $(eval echo \$${name#lib}_deps))
4786     requires=${requires%, }
4787     enabled ${name#lib} || return 0
4788     mkdir -p $name
4789     cat <<EOF > $name/$name.pc
4790 prefix=$prefix
4791 exec_prefix=\${prefix}
4792 libdir=$libdir
4793 includedir=$incdir
4794
4795 Name: $name
4796 Description: $comment
4797 Version: $version
4798 Requires: $(enabled shared || echo $requires)
4799 Requires.private: $(enabled shared && echo $requires)
4800 Conflicts:
4801 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4802 Libs.private: $(enabled shared && echo $libs)
4803 Cflags: -I\${includedir}
4804 EOF
4805     cat <<EOF > $name/$name-uninstalled.pc
4806 prefix=
4807 exec_prefix=
4808 libdir=\${pcfiledir}
4809 includedir=${source_path}
4810
4811 Name: $name
4812 Description: $comment
4813 Version: $version
4814 Requires: $requires
4815 Conflicts:
4816 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4817 Cflags: -I\${includedir}
4818 EOF
4819 }
4820
4821 pkgconfig_generate libavutil     "Libav utility library"          "$LIBAVUTIL_VERSION"     "$LIBM"
4822 pkgconfig_generate libavcodec    "Libav codec library"            "$LIBAVCODEC_VERSION"    "$extralibs"
4823 pkgconfig_generate libavformat   "Libav container format library" "$LIBAVFORMAT_VERSION"   "$extralibs"
4824 pkgconfig_generate libavdevice   "Libav device handling library"  "$LIBAVDEVICE_VERSION"   "$extralibs"
4825 pkgconfig_generate libavfilter   "Libav video filtering library"  "$LIBAVFILTER_VERSION"   "$extralibs"
4826 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$LIBM"
4827 pkgconfig_generate libswscale    "Libav image rescaling library"  "$LIBSWSCALE_VERSION"    "$LIBM"