avio: Add const qualifiers to ffio_read_indirect
[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   --libdir=DIR             install libs in DIR [PREFIX/lib]
85   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
86   --incdir=DIR             install includes in DIR [PREFIX/include]
87   --mandir=DIR             install man page in DIR [PREFIX/share/man]
88
89 Licensing options:
90   --enable-gpl             allow use of GPL code, the resulting libs
91                            and binaries will be under GPL [no]
92   --enable-version3        upgrade (L)GPL to version 3 [no]
93   --enable-nonfree         allow use of nonfree code, the resulting libs
94                            and binaries will be unredistributable [no]
95
96 Configuration options:
97   --disable-static         do not build static libraries [no]
98   --enable-shared          build shared libraries [no]
99   --enable-small           optimize for size instead of speed
100   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
101   --enable-gray            enable full grayscale support (slower color)
102   --disable-swscale-alpha  disable alpha channel support in swscale
103   --disable-all            disable building components, libraries and programs
104
105 Program options:
106   --disable-programs       do not build command line programs
107   --disable-avconv         disable avconv build
108   --disable-avplay         disable avplay build
109   --disable-avprobe        disable avprobe build
110   --disable-avserver       disable avserver build
111
112 Component options:
113   --disable-doc            do not build documentation
114   --disable-avdevice       disable libavdevice build
115   --disable-avcodec        disable libavcodec build
116   --disable-avformat       disable libavformat build
117   --disable-avutil         disable libavutil build
118   --disable-swscale        disable libswscale build
119   --disable-avfilter       disable video filter support [no]
120   --disable-avresample     disable libavresample build [no]
121   --disable-pthreads       disable pthreads [auto]
122   --disable-w32threads     disable Win32 threads [auto]
123   --disable-network        disable network support [no]
124   --disable-dct            disable DCT code
125   --disable-error-resilience disable error resilience code
126   --disable-lsp            disable LSP code
127   --disable-lzo            disable LZO decoder code
128   --disable-mdct           disable MDCT code
129   --disable-rdft           disable RDFT code
130   --disable-fft            disable FFT code
131
132 Hardware accelerators:
133   --enable-dxva2           enable DXVA2 code
134   --enable-vaapi           enable VAAPI code
135   --enable-vda             enable VDA code
136   --enable-vdpau           enable VDPAU code
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176   --enable-avisynth        enable reading of AviSynth script files [no]
177   --enable-bzlib           enable bzlib [autodetect]
178   --enable-frei0r          enable frei0r video filtering
179   --enable-gnutls          enable gnutls [no]
180   --enable-libcdio         enable audio CD grabbing with libcdio
181   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
182                            and libraw1394 [no]
183   --enable-libfaac         enable AAC encoding via libfaac [no]
184   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
185   --enable-libfreetype     enable libfreetype [no]
186   --enable-libgsm          enable GSM de/encoding via libgsm [no]
187   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
188   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
189   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
190   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
191   --enable-libopencv       enable video filtering via libopencv [no]
192   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
193   --enable-libopus         enable Opus decoding via libopus [no]
194   --enable-libpulse        enable Pulseaudio input via libpulse [no]
195   --enable-librtmp         enable RTMP[E] support via librtmp [no]
196   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
197   --enable-libspeex        enable Speex de/encoding via libspeex [no]
198   --enable-libtheora       enable Theora encoding via libtheora [no]
199   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
200   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
201   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
202   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
203   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
204   --enable-libx264         enable H.264 encoding via x264 [no]
205   --enable-libxavs         enable AVS encoding via xavs [no]
206   --enable-libxvid         enable Xvid encoding via xvidcore,
207                            native MPEG-4/Xvid encoder exists [no]
208   --enable-openssl         enable openssl [no]
209   --enable-x11grab         enable X11 grabbing [no]
210   --enable-zlib            enable zlib [autodetect]
211
212 Advanced options (experts only):
213   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
214   --enable-cross-compile   assume a cross-compiler is used
215   --sysroot=PATH           root of cross-build tree
216   --sysinclude=PATH        location of cross-build system headers
217   --target-os=OS           compiler targets OS [$target_os]
218   --target-exec=CMD        command to run executables on target
219   --target-path=DIR        path to view of build directory on target
220   --target-samples=DIR     path to samples directory on target
221   --toolchain=NAME         set tool defaults according to NAME
222   --nm=NM                  use nm tool
223   --ar=AR                  use archive tool AR [$ar_default]
224   --as=AS                  use assembler AS [$as_default]
225   --cc=CC                  use C compiler CC [$cc_default]
226   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
227   --ld=LD                  use linker LD
228   --host-cc=HOSTCC         use host C compiler HOSTCC
229   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
230   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
231   --host-ld=HOSTLD         use host linker HOSTLD
232   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
233   --host-libs=HLIBS        use libs HLIBS when linking for host
234   --host-os=OS             compiler host OS [$target_os]
235   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
236   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
237   --extra-libs=ELIBS       add ELIBS [$ELIBS]
238   --extra-version=STRING   version string suffix []
239   --optflags=OPTFLAGS      override optimization-related compiler flags
240   --build-suffix=SUFFIX    library name suffix []
241   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
242   --arch=ARCH              select architecture [$arch]
243   --cpu=CPU                select the minimum required CPU (affects
244                            instruction selection, may crash on older CPUs)
245   --enable-pic             build position-independent code
246   --enable-sram            allow use of on-chip SRAM
247   --enable-thumb           compile for Thumb instruction set
248   --disable-symver         disable symbol versioning
249   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
250   --disable-safe-bitstream-reader
251                            disable buffer boundary checking in bitreaders
252                            (faster, but may crash)
253   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
254   --enable-lto             use link-time optimization
255
256 Optimization options (experts only):
257   --disable-asm            disable all assembler optimizations
258   --disable-altivec        disable AltiVec optimizations
259   --disable-amd3dnow       disable 3DNow! optimizations
260   --disable-amd3dnowext    disable 3DNow! extended optimizations
261   --disable-mmx            disable MMX optimizations
262   --disable-mmxext         disable MMXEXT optimizations
263   --disable-sse            disable SSE optimizations
264   --disable-sse2           disable SSE2 optimizations
265   --disable-sse3           disable SSE3 optimizations
266   --disable-ssse3          disable SSSE3 optimizations
267   --disable-sse4           disable SSE4 optimizations
268   --disable-sse42          disable SSE4.2 optimizations
269   --disable-avx            disable AVX optimizations
270   --disable-fma4           disable FMA4 optimizations
271   --disable-armv5te        disable armv5te optimizations
272   --disable-armv6          disable armv6 optimizations
273   --disable-armv6t2        disable armv6t2 optimizations
274   --disable-vfp            disable VFP optimizations
275   --disable-neon           disable NEON optimizations
276   --disable-vis            disable VIS optimizations
277   --disable-inline-asm     disable use of inline assembler
278   --disable-yasm           disable use of yasm assembler
279
280 Developer options (useful when working on Libav itself):
281   --disable-debug          disable debugging symbols
282   --enable-debug=LEVEL     set the debug level [$debuglevel]
283   --disable-optimizations  disable compiler optimizations
284   --enable-extra-warnings  enable more compiler warnings
285   --samples=PATH           location of test samples for FATE, if not set use
286                            \$LIBAV_SAMPLES at make invocation time.
287   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
288                            should be used only for debugging purposes)
289   --enable-random          randomly enable/disable components
290   --disable-random
291   --enable-random=LIST     randomly enable/disable specific components or
292   --disable-random=LIST    component groups. LIST is a comma-separated list
293                            of NAME[:PROB] entries where NAME is a component
294                            (group) and PROB the probability associated with
295                            NAME (default 0.5).
296   --random-seed=VALUE      seed value for --enable/disable-random
297
298 NOTE: Object files are built at the place where configure is launched.
299 EOF
300   exit 0
301 }
302
303 quotes='""'
304
305 log(){
306     echo "$@" >> $logfile
307 }
308
309 log_file(){
310     log BEGIN $1
311     pr -n -t $1 >> $logfile
312     log END $1
313 }
314
315 echolog(){
316     log "$@"
317     echo "$@"
318 }
319
320 warn(){
321     log "WARNING: $*"
322     WARNINGS="${WARNINGS}WARNING: $*\n"
323 }
324
325 die(){
326     echolog "$@"
327     cat <<EOF
328
329 If you think configure made a mistake, make sure you are using the latest
330 version from Git.  If the latest version fails, report the problem to the
331 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
332 EOF
333     if disabled logging; then
334         cat <<EOF
335 Rerun configure with logging enabled (do not use --disable-logging), and
336 include the log this produces with your report.
337 EOF
338     else
339         cat <<EOF
340 Include the log file "$logfile" produced by configure as this will help
341 solving the problem.
342 EOF
343     fi
344     exit 1
345 }
346
347 # Avoid locale weirdness, besides we really just want to translate ASCII.
348 toupper(){
349     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
350 }
351
352 tolower(){
353     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
354 }
355
356 c_escape(){
357     echo "$*" | sed 's/["\\]/\\\0/g'
358 }
359
360 sh_quote(){
361     v=$(echo "$1" | sed "s/'/'\\\\''/g")
362     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
363     echo "$v"
364 }
365
366 cleanws(){
367     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
368 }
369
370 filter(){
371     pat=$1
372     shift
373     for v; do
374         eval "case $v in $pat) echo $v ;; esac"
375     done
376 }
377
378 filter_out(){
379     pat=$1
380     shift
381     for v; do
382         eval "case $v in $pat) ;; *) echo $v ;; esac"
383     done
384 }
385
386 map(){
387     m=$1
388     shift
389     for v; do eval $m; done
390 }
391
392 add_suffix(){
393     suffix=$1
394     shift
395     for v; do echo ${v}${suffix}; done
396 }
397
398 set_all(){
399     value=$1
400     shift
401     for var in $*; do
402         eval $var=$value
403     done
404 }
405
406 set_weak(){
407     value=$1
408     shift
409     for var; do
410         eval : \${$var:=$value}
411     done
412 }
413
414 sanitize_var_name(){
415     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
416 }
417
418 set_safe(){
419     var=$1
420     shift
421     eval $(sanitize_var_name "$var")='$*'
422 }
423
424 get_safe(){
425     eval echo \$$(sanitize_var_name "$1")
426 }
427
428 pushvar(){
429     for pvar in $*; do
430         eval level=\${${pvar}_level:=0}
431         eval ${pvar}_${level}="\$$pvar"
432         eval ${pvar}_level=$(($level+1))
433     done
434 }
435
436 popvar(){
437     for pvar in $*; do
438         eval level=\${${pvar}_level:-0}
439         test $level = 0 && continue
440         eval level=$(($level-1))
441         eval $pvar="\${${pvar}_${level}}"
442         eval ${pvar}_level=$level
443         eval unset ${pvar}_${level}
444     done
445 }
446
447 enable(){
448     set_all yes $*
449 }
450
451 disable(){
452     set_all no $*
453 }
454
455 enable_weak(){
456     set_weak yes $*
457 }
458
459 disable_weak(){
460     set_weak no $*
461 }
462
463 enable_safe(){
464     for var; do
465         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
466     done
467 }
468
469 disable_safe(){
470     for var; do
471         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
472     done
473 }
474
475 do_enable_deep(){
476     for var; do
477         enabled $var && continue
478         eval sel="\$${var}_select"
479         eval sgs="\$${var}_suggest"
480         pushvar var sgs
481         enable_deep $sel
482         popvar sgs
483         enable_deep_weak $sgs
484         popvar var
485     done
486 }
487
488 enable_deep(){
489     do_enable_deep $*
490     enable $*
491 }
492
493 enable_deep_weak(){
494     for var; do
495         disabled $var && continue
496         pushvar var
497         do_enable_deep $var
498         popvar var
499         enable_weak $var
500     done
501 }
502
503 enabled(){
504     test "${1#!}" = "$1" && op== || op=!=
505     eval test "x\$${1#!}" $op "xyes"
506 }
507
508 disabled(){
509     test "${1#!}" = "$1" && op== || op=!=
510     eval test "x\$${1#!}" $op "xno"
511 }
512
513 enabled_all(){
514     for opt; do
515         enabled $opt || return 1
516     done
517 }
518
519 disabled_all(){
520     for opt; do
521         disabled $opt || return 1
522     done
523 }
524
525 enabled_any(){
526     for opt; do
527         enabled $opt && return 0
528     done
529 }
530
531 disabled_any(){
532     for opt; do
533         disabled $opt && return 0
534     done
535     return 1
536 }
537
538 set_default(){
539     for opt; do
540         eval : \${$opt:=\$${opt}_default}
541     done
542 }
543
544 is_in(){
545     value=$1
546     shift
547     for var in $*; do
548         [ $var = $value ] && return 0
549     done
550     return 1
551 }
552
553 do_check_deps(){
554     for cfg; do
555         cfg="${cfg#!}"
556         enabled ${cfg}_checking && die "Circular dependency for $cfg."
557         disabled ${cfg}_checking && continue
558         enable ${cfg}_checking
559         append allopts $cfg
560
561         eval dep_all="\$${cfg}_deps"
562         eval dep_any="\$${cfg}_deps_any"
563         eval dep_sel="\$${cfg}_select"
564         eval dep_sgs="\$${cfg}_suggest"
565         eval dep_ifa="\$${cfg}_if"
566         eval dep_ifn="\$${cfg}_if_any"
567
568         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
569         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
570         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
571
572         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
573         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
574         enabled_all  $dep_all || disable $cfg
575         enabled_any  $dep_any || disable $cfg
576         disabled_any $dep_sel && disable $cfg
577
578         if enabled $cfg; then
579             enable_deep $dep_sel
580             enable_deep_weak $dep_sgs
581         fi
582
583         disable ${cfg}_checking
584     done
585 }
586
587 check_deps(){
588     unset allopts
589
590     do_check_deps "$@"
591
592     for cfg in $allopts; do
593         enabled $cfg || continue
594         eval dep_extralibs="\$${cfg}_extralibs"
595         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
596     done
597 }
598
599 print_config(){
600     pfx=$1
601     files=$2
602     shift 2
603     map 'eval echo "$v \${$v:-no}"' "$@" |
604     awk "BEGIN { split(\"$files\", files) }
605         {
606             c = \"$pfx\" toupper(\$1);
607             v = \$2;
608             sub(/yes/, 1, v);
609             sub(/no/,  0, v);
610             for (f in files) {
611                 file = files[f];
612                 if (file ~ /\\.h\$/) {
613                     printf(\"#define %s %d\\n\", c, v) >>file;
614                 } else if (file ~ /\\.asm\$/) {
615                     printf(\"%%define %s %d\\n\", c, v) >>file;
616                 } else if (file ~ /\\.mak\$/) {
617                     n = -v ? \"\" : \"!\";
618                     printf(\"%s%s=yes\\n\", n, c) >>file;
619                 }
620             }
621         }"
622 }
623
624 print_enabled(){
625     suf=$1
626     shift
627     for v; do
628         enabled $v && printf "%s\n" ${v%$suf};
629     done
630 }
631
632 append(){
633     var=$1
634     shift
635     eval "$var=\"\$$var $*\""
636 }
637
638 prepend(){
639     var=$1
640     shift
641     eval "$var=\"$* \$$var\""
642 }
643
644 add_cppflags(){
645     append CPPFLAGS "$@"
646 }
647
648 add_cflags(){
649     append CFLAGS $($cflags_filter "$@")
650 }
651
652 add_asflags(){
653     append ASFLAGS $($asflags_filter "$@")
654 }
655
656 add_ldflags(){
657     append LDFLAGS $($ldflags_filter "$@")
658 }
659
660 add_extralibs(){
661     prepend extralibs $($ldflags_filter "$@")
662 }
663
664 add_host_cppflags(){
665     append host_cppflags "$@"
666 }
667
668 add_host_cflags(){
669     append host_cflags $($host_cflags_filter "$@")
670 }
671
672 add_host_ldflags(){
673     append host_ldflags $($host_ldflags_filter "$@")
674 }
675
676 add_compat(){
677     append compat_objs $1
678     shift
679     map 'add_cppflags -D$v' "$@"
680 }
681
682 check_cmd(){
683     log "$@"
684     "$@" >> $logfile 2>&1
685 }
686
687 cc_o(){
688     eval printf '%s\\n' $CC_O
689 }
690
691 cc_e(){
692     eval printf '%s\\n' $CC_E
693 }
694
695 check_cc(){
696     log check_cc "$@"
697     cat > $TMPC
698     log_file $TMPC
699     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
700 }
701
702 check_cpp(){
703     log check_cpp "$@"
704     cat > $TMPC
705     log_file $TMPC
706     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
707 }
708
709 as_o(){
710     eval printf '%s\\n' $AS_O
711 }
712
713 check_as(){
714     log check_as "$@"
715     cat > $TMPS
716     log_file $TMPS
717     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
718 }
719
720 check_inline_asm(){
721     log check_inline_asm "$@"
722     name="$1"
723     code="$2"
724     shift 2
725     disable $name
726     check_cc "$@" <<EOF && enable $name
727 void foo(void){ __asm__ volatile($code); }
728 EOF
729 }
730
731 check_insn(){
732     log check_insn "$@"
733     check_inline_asm ${1}_inline "\"$2\""
734     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
735 }
736
737 check_yasm(){
738     log check_yasm "$@"
739     echo "$1" > $TMPS
740     log_file $TMPS
741     shift 1
742     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
743 }
744
745 ld_o(){
746     eval printf '%s\\n' $LD_O
747 }
748
749 check_ld(){
750     log check_ld "$@"
751     flags=$(filter_out '-l*' "$@")
752     libs=$(filter '-l*' "$@")
753     check_cc $($cflags_filter $flags) || return
754     flags=$($ldflags_filter $flags)
755     libs=$($ldflags_filter $libs)
756     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
757 }
758
759 check_code(){
760     log check_code "$@"
761     check=$1
762     headers=$2
763     code=$3
764     shift 3
765     {
766         for hdr in $headers; do
767             echo "#include <$hdr>"
768         done
769         echo "int main(void) { $code; return 0; }"
770     } | check_$check "$@"
771 }
772
773 check_cppflags(){
774     log check_cppflags "$@"
775     check_cc "$@" <<EOF && append CPPFLAGS "$@"
776 int x;
777 EOF
778 }
779
780 check_cflags(){
781     log check_cflags "$@"
782     set -- $($cflags_filter "$@")
783     check_cc "$@" <<EOF && append CFLAGS "$@"
784 int x;
785 EOF
786 }
787
788 test_ldflags(){
789     log test_ldflags "$@"
790     check_ld "$@" <<EOF
791 int main(void){ return 0; }
792 EOF
793 }
794
795 check_ldflags(){
796     log check_ldflags "$@"
797     test_ldflags "$@" && add_ldflags "$@"
798 }
799
800 check_header(){
801     log check_header "$@"
802     header=$1
803     shift
804     disable_safe $header
805     check_cpp "$@" <<EOF && enable_safe $header
806 #include <$header>
807 int x;
808 EOF
809 }
810
811 check_func(){
812     log check_func "$@"
813     func=$1
814     shift
815     disable $func
816     check_ld "$@" <<EOF && enable $func
817 extern int $func();
818 int main(void){ $func(); }
819 EOF
820 }
821
822 check_mathfunc(){
823     log check_mathfunc "$@"
824     func=$1
825     narg=$2
826     shift 2
827     test $narg = 2 && args="f, g" || args="f"
828     disable $func
829     check_ld "$@" <<EOF && enable $func
830 #include <math.h>
831 float foo(float f, float g) { return $func($args); }
832 int main(void){ return 0; }
833 EOF
834 }
835
836 check_func_headers(){
837     log check_func_headers "$@"
838     headers=$1
839     funcs=$2
840     shift 2
841     {
842         for hdr in $headers; do
843             echo "#include <$hdr>"
844         done
845         for func in $funcs; do
846             echo "long check_$func(void) { return (long) $func; }"
847         done
848         echo "int main(void) { return 0; }"
849     } | check_ld "$@" && enable $funcs && enable_safe $headers
850 }
851
852 check_cpp_condition(){
853     log check_cpp_condition "$@"
854     header=$1
855     condition=$2
856     shift 2
857     check_cpp "$@" <<EOF
858 #include <$header>
859 #if !($condition)
860 #error "unsatisfied condition: $condition"
861 #endif
862 EOF
863 }
864
865 check_lib(){
866     log check_lib "$@"
867     header="$1"
868     func="$2"
869     shift 2
870     check_header $header && check_func $func "$@" && add_extralibs "$@"
871 }
872
873 check_lib2(){
874     log check_lib2 "$@"
875     headers="$1"
876     funcs="$2"
877     shift 2
878     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
879 }
880
881 check_pkg_config(){
882     log check_pkg_config "$@"
883     pkg="$1"
884     headers="$2"
885     funcs="$3"
886     shift 3
887     $pkg_config --exists $pkg || return
888     pkg_cflags=$($pkg_config --cflags $pkg)
889     pkg_libs=$($pkg_config --libs $pkg)
890     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
891         set_safe ${pkg}_cflags $pkg_cflags   &&
892         set_safe ${pkg}_libs   $pkg_libs
893 }
894
895 check_exec(){
896     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
897 }
898
899 check_exec_crash(){
900     code=$(cat)
901
902     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
903     # are safe but may not be available everywhere.  Thus we use
904     # raise(SIGTERM) instead.  The check is run in a subshell so we
905     # can redirect the "Terminated" message from the shell.  SIGBUS
906     # is not defined by standard C so it is used conditionally.
907
908     (check_exec "$@") >> $logfile 2>&1 <<EOF
909 #include <signal.h>
910 static void sighandler(int sig){
911     raise(SIGTERM);
912 }
913 int foo(void){
914     $code
915 }
916 int (*func_ptr)(void) = foo;
917 int main(void){
918     signal(SIGILL, sighandler);
919     signal(SIGFPE, sighandler);
920     signal(SIGSEGV, sighandler);
921 #ifdef SIGBUS
922     signal(SIGBUS, sighandler);
923 #endif
924     return func_ptr();
925 }
926 EOF
927 }
928
929 check_type(){
930     log check_type "$@"
931     headers=$1
932     type=$2
933     shift 2
934     disable_safe "$type"
935     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
936 }
937
938 check_struct(){
939     log check_struct "$@"
940     headers=$1
941     struct=$2
942     member=$3
943     shift 3
944     disable_safe "${struct}_${member}"
945     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
946         enable_safe "${struct}_${member}"
947 }
948
949 check_builtin(){
950     log check_builtin "$@"
951     name=$1
952     headers=$2
953     builtin=$3
954     shift 3
955     disable "$name"
956     check_code ld "$headers" "$builtin" "$@" && enable "$name"
957 }
958
959 require(){
960     name="$1"
961     header="$2"
962     func="$3"
963     shift 3
964     check_lib $header $func "$@" || die "ERROR: $name not found"
965 }
966
967 require2(){
968     name="$1"
969     headers="$2"
970     func="$3"
971     shift 3
972     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
973 }
974
975 require_pkg_config(){
976     pkg="$1"
977     check_pkg_config "$@" || die "ERROR: $pkg not found"
978     add_cflags    $(get_safe ${pkg}_cflags)
979     add_extralibs $(get_safe ${pkg}_libs)
980 }
981
982 hostcc_o(){
983     eval printf '%s\\n' $HOSTCC_O
984 }
985
986 check_host_cc(){
987     log check_host_cc "$@"
988     cat > $TMPC
989     log_file $TMPC
990     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
991 }
992
993 check_host_cppflags(){
994     log check_host_cppflags "$@"
995     check_host_cc "$@" <<EOF && append host_cppflags "$@"
996 int x;
997 EOF
998 }
999
1000 check_host_cflags(){
1001     log check_host_cflags "$@"
1002     set -- $($host_cflags_filter "$@")
1003     check_host_cc "$@" <<EOF && append host_cflags "$@"
1004 int x;
1005 EOF
1006 }
1007
1008 apply(){
1009     file=$1
1010     shift
1011     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1012 }
1013
1014 cp_if_changed(){
1015     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1016     mkdir -p "$(dirname $2)"
1017     $cp_f "$1" "$2"
1018 }
1019
1020 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1021 # system-dependent things.
1022
1023 COMPONENT_LIST="
1024     bsfs
1025     decoders
1026     demuxers
1027     encoders
1028     filters
1029     hwaccels
1030     indevs
1031     muxers
1032     outdevs
1033     parsers
1034     protocols
1035 "
1036
1037 EXTERNAL_LIBRARY_LIST="
1038     avisynth
1039     bzlib
1040     frei0r
1041     gnutls
1042     libcdio
1043     libdc1394
1044     libfaac
1045     libfdk_aac
1046     libfreetype
1047     libgsm
1048     libilbc
1049     libmp3lame
1050     libopencore_amrnb
1051     libopencore_amrwb
1052     libopencv
1053     libopenjpeg
1054     libopus
1055     libpulse
1056     librtmp
1057     libschroedinger
1058     libspeex
1059     libtheora
1060     libvo_aacenc
1061     libvo_amrwbenc
1062     libvorbis
1063     libvpx
1064     libwavpack
1065     libx264
1066     libxavs
1067     libxvid
1068     openssl
1069     x11grab
1070     zlib
1071 "
1072
1073 HWACCEL_LIST="
1074     dxva2
1075     vaapi
1076     vda
1077     vdpau
1078 "
1079 LIBRARY_LIST="
1080     avcodec
1081     avdevice
1082     avfilter
1083     avformat
1084     avresample
1085     avutil
1086     swscale
1087 "
1088
1089 PROGRAM_LIST="
1090     avconv
1091     avplay
1092     avprobe
1093     avserver
1094 "
1095
1096 CONFIG_LIST="
1097     $COMPONENT_LIST
1098     $EXTERNAL_LIBRARY_LIST
1099     $HWACCEL_LIST
1100     $LIBRARY_LIST
1101     $PROGRAM_LIST
1102     dct
1103     doc
1104     error_resilience
1105     fft
1106     gpl
1107     gray
1108     hardcoded_tables
1109     lsp
1110     lzo
1111     mdct
1112     memalign_hack
1113     network
1114     nonfree
1115     pic
1116     rdft
1117     runtime_cpudetect
1118     safe_bitstream_reader
1119     shared
1120     small
1121     sram
1122     static
1123     swscale_alpha
1124     thumb
1125     version3
1126     xmm_clobber_test
1127 "
1128
1129 THREADS_LIST='
1130     pthreads
1131     w32threads
1132 '
1133
1134 ATOMICS_LIST='
1135     atomics_gcc
1136     atomics_suncc
1137     atomics_win32
1138 '
1139
1140 ARCH_LIST='
1141     aarch64
1142     alpha
1143     arm
1144     avr32
1145     avr32_ap
1146     avr32_uc
1147     bfin
1148     ia64
1149     m68k
1150     mips
1151     mips64
1152     parisc
1153     ppc
1154     ppc64
1155     s390
1156     sh4
1157     sparc
1158     sparc64
1159     tilegx
1160     tilepro
1161     tomi
1162     x86
1163     x86_32
1164     x86_64
1165 '
1166
1167 ARCH_EXT_LIST_ARM='
1168     armv5te
1169     armv6
1170     armv6t2
1171     neon
1172     vfp
1173     vfpv3
1174 '
1175
1176 ARCH_EXT_LIST_X86='
1177     amd3dnow
1178     amd3dnowext
1179     avx
1180     fma4
1181     mmx
1182     mmxext
1183     sse
1184     sse2
1185     sse3
1186     sse4
1187     sse42
1188     ssse3
1189 '
1190
1191 ARCH_EXT_LIST="
1192     $ARCH_EXT_LIST_ARM
1193     $ARCH_EXT_LIST_X86
1194     altivec
1195     ppc4xx
1196     vis
1197 "
1198
1199 HAVE_LIST_CMDLINE='
1200     inline_asm
1201     symver
1202     yasm
1203 '
1204
1205 HAVE_LIST_PUB='
1206     bigendian
1207     fast_unaligned
1208 '
1209
1210 MATH_FUNCS="
1211     atanf
1212     atan2f
1213     cbrtf
1214     cosf
1215     exp2
1216     exp2f
1217     expf
1218     isinf
1219     isnan
1220     ldexpf
1221     llrint
1222     llrintf
1223     log2
1224     log2f
1225     log10f
1226     lrint
1227     lrintf
1228     powf
1229     rint
1230     round
1231     roundf
1232     sinf
1233     trunc
1234     truncf
1235 "
1236
1237 HAVE_LIST="
1238     $ARCH_EXT_LIST
1239     $(add_suffix _external $ARCH_EXT_LIST)
1240     $(add_suffix _inline   $ARCH_EXT_LIST)
1241     $HAVE_LIST_CMDLINE
1242     $HAVE_LIST_PUB
1243     $THREADS_LIST
1244     $ATOMICS_LIST
1245     $MATH_FUNCS
1246     aligned_malloc
1247     aligned_stack
1248     alsa_asoundlib_h
1249     altivec_h
1250     arpa_inet_h
1251     asm_mod_q
1252     asm_mod_y
1253     atomic_cas_ptr
1254     atomics_native
1255     attribute_may_alias
1256     attribute_packed
1257     cdio_paranoia_h
1258     cdio_paranoia_paranoia_h
1259     closesocket
1260     CommandLineToArgvW
1261     cpunop
1262     CryptGenRandom
1263     dcbzl
1264     dev_bktr_ioctl_bt848_h
1265     dev_bktr_ioctl_meteor_h
1266     dev_ic_bt8xx_h
1267     dev_video_bktr_ioctl_bt848_h
1268     dev_video_meteor_ioctl_meteor_h
1269     direct_h
1270     dlfcn_h
1271     dlopen
1272     dos_paths
1273     dxva_h
1274     ebp_available
1275     ebx_available
1276     fast_64bit
1277     fast_clz
1278     fast_cmov
1279     fcntl
1280     fork
1281     getaddrinfo
1282     gethrtime
1283     getopt
1284     GetProcessAffinityMask
1285     GetProcessMemoryInfo
1286     GetProcessTimes
1287     GetSystemTimeAsFileTime
1288     getrusage
1289     getservbyport
1290     gettimeofday
1291     gnu_as
1292     gsm_h
1293     i686
1294     ibm_asm
1295     inet_aton
1296     io_h
1297     inline_asm_labels
1298     isatty
1299     jack_port_get_latency_range
1300     ldbrx
1301     libdc1394_1
1302     libdc1394_2
1303     local_aligned_16
1304     local_aligned_8
1305     localtime_r
1306     loongson
1307     machine_ioctl_bt848_h
1308     machine_ioctl_meteor_h
1309     machine_rw_barrier
1310     malloc_h
1311     MapViewOfFile
1312     memalign
1313     MemoryBarrier
1314     mkstemp
1315     mm_empty
1316     mmap
1317     mprotect
1318     msvcrt
1319     nanosleep
1320     poll_h
1321     posix_memalign
1322     pragma_deprecated
1323     rdtsc
1324     sched_getaffinity
1325     sdl
1326     SetConsoleTextAttribute
1327     setmode
1328     setrlimit
1329     Sleep
1330     sndio_h
1331     socklen_t
1332     soundcard_h
1333     strerror_r
1334     strptime
1335     strtok_r
1336     struct_addrinfo
1337     struct_group_source_req
1338     struct_ip_mreq_source
1339     struct_ipv6_mreq
1340     struct_pollfd
1341     struct_rusage_ru_maxrss
1342     struct_sockaddr_in6
1343     struct_sockaddr_sa_len
1344     struct_sockaddr_storage
1345     struct_v4l2_frmivalenum_discrete
1346     symver_asm_label
1347     symver_gnu_asm
1348     sync_val_compare_and_swap
1349     sysconf
1350     sysctl
1351     sys_mman_h
1352     sys_param_h
1353     sys_resource_h
1354     sys_select_h
1355     sys_soundcard_h
1356     sys_time_h
1357     sys_un_h
1358     sys_videoio_h
1359     threads
1360     unistd_h
1361     usleep
1362     vfp_args
1363     VirtualAlloc
1364     windows_h
1365     winsock2_h
1366     xform_asm
1367     xmm_clobbers
1368 "
1369
1370 # options emitted with CONFIG_ prefix but not available on the command line
1371 CONFIG_EXTRA="
1372     aandcttables
1373     ac3dsp
1374     audio_frame_queue
1375     dsputil
1376     gcrypt
1377     golomb
1378     gplv3
1379     h264chroma
1380     h264dsp
1381     h264pred
1382     h264qpel
1383     hpeldsp
1384     huffman
1385     lgplv3
1386     lpc
1387     mpegaudio
1388     mpegaudiodsp
1389     mpegvideo
1390     mpegvideoenc
1391     nettle
1392     rangecoder
1393     riffdec
1394     riffenc
1395     rtpdec
1396     rtpenc_chain
1397     sinewin
1398     videodsp
1399     vp3dsp
1400 "
1401
1402 CMDLINE_SELECT="
1403     $ARCH_EXT_LIST
1404     $CONFIG_LIST
1405     $HAVE_LIST_CMDLINE
1406     $THREADS_LIST
1407     asm
1408     cross_compile
1409     debug
1410     extra_warnings
1411     logging
1412     lto
1413     optimizations
1414 "
1415
1416 PATHS_LIST='
1417     bindir
1418     datadir
1419     incdir
1420     libdir
1421     mandir
1422     prefix
1423     shlibdir
1424 '
1425
1426 CMDLINE_SET="
1427     $PATHS_LIST
1428     ar
1429     arch
1430     as
1431     build_suffix
1432     cc
1433     cpu
1434     cross_prefix
1435     dep_cc
1436     extra_version
1437     host_cc
1438     host_cflags
1439     host_ld
1440     host_ldflags
1441     host_libs
1442     host_os
1443     ld
1444     logfile
1445     malloc_prefix
1446     nm
1447     optflags
1448     pkg_config
1449     random_seed
1450     samples
1451     sysinclude
1452     sysroot
1453     target_exec
1454     target_os
1455     target_path
1456     target_samples
1457     toolchain
1458 "
1459
1460 CMDLINE_APPEND="
1461     extra_cflags
1462     host_cppflags
1463 "
1464
1465 # code dependency declarations
1466
1467 # architecture extensions
1468
1469 armv5te_deps="arm"
1470 armv6_deps="arm"
1471 armv6t2_deps="arm"
1472 neon_deps="arm"
1473 vfp_deps="arm"
1474 vfpv3_deps="vfp"
1475
1476 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1477
1478 altivec_deps="ppc"
1479 ppc4xx_deps="ppc"
1480
1481 vis_deps="sparc"
1482
1483 x86_64_suggest="fast_cmov i686"
1484
1485 amd3dnow_deps="mmx"
1486 amd3dnowext_deps="amd3dnow"
1487 mmx_deps="x86"
1488 mmxext_deps="mmx"
1489 sse_deps="mmxext"
1490 sse2_deps="sse"
1491 sse3_deps="sse2"
1492 ssse3_deps="sse3"
1493 sse4_deps="ssse3"
1494 sse42_deps="sse4"
1495 avx_deps="sse42"
1496 fma4_deps="avx"
1497
1498 mmx_external_deps="yasm"
1499 mmx_inline_deps="inline_asm"
1500 mmx_suggest="mmx_external mmx_inline"
1501
1502 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1503     eval dep=\$${ext}_deps
1504     eval ${ext}_external_deps='"${dep}_external"'
1505     eval ${ext}_inline_deps='"${dep}_inline"'
1506     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1507 done
1508
1509 aligned_stack_if_any="ppc x86"
1510 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1511 fast_clz_if_any="alpha avr32 mips ppc x86"
1512 fast_unaligned_if_any="ppc x86"
1513
1514 inline_asm_deps="!tms470"
1515 need_memalign="altivec neon sse"
1516
1517 symver_if_any="symver_asm_label symver_gnu_asm"
1518
1519 log2_deps="!msvcrt"
1520
1521 # subsystems
1522 dct_select="rdft"
1523 error_resilience_select="dsputil"
1524 lpc_select="dsputil"
1525 mdct_select="fft"
1526 rdft_select="fft"
1527 mpegaudio_select="mpegaudiodsp"
1528 mpegaudiodsp_select="dct"
1529 mpegvideo_select="dsputil hpeldsp videodsp"
1530 mpegvideoenc_select="mpegvideo"
1531
1532 # decoders / encoders
1533 aac_decoder_select="mdct sinewin"
1534 aac_encoder_select="audio_frame_queue mdct sinewin"
1535 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1536 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1537 ac3_encoder_select="mdct ac3dsp dsputil"
1538 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1539 aic_decoder_select="dsputil golomb"
1540 alac_encoder_select="lpc"
1541 als_decoder_select="dsputil"
1542 amrnb_decoder_select="lsp"
1543 amrwb_decoder_select="lsp"
1544 amv_decoder_select="dsputil hpeldsp"
1545 ape_decoder_select="dsputil"
1546 asv1_decoder_select="dsputil"
1547 asv1_encoder_select="dsputil"
1548 asv2_decoder_select="dsputil"
1549 asv2_encoder_select="dsputil"
1550 atrac1_decoder_select="mdct sinewin"
1551 atrac3_decoder_select="mdct"
1552 bink_decoder_select="dsputil hpeldsp"
1553 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1554 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1555 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1556 cllc_decoder_select="dsputil"
1557 comfortnoise_encoder_select="lpc"
1558 cook_decoder_select="dsputil mdct sinewin"
1559 cscd_decoder_select="lzo"
1560 cscd_decoder_suggest="zlib"
1561 dca_decoder_select="mdct"
1562 dnxhd_decoder_select="dsputil"
1563 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1564 dvvideo_decoder_select="dsputil"
1565 dvvideo_encoder_select="dsputil"
1566 dxa_decoder_deps="zlib"
1567 eac3_decoder_select="ac3_decoder"
1568 eac3_encoder_select="ac3_encoder"
1569 eamad_decoder_select="aandcttables dsputil mpegvideo"
1570 eatgq_decoder_select="aandcttables dsputil"
1571 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1572 ffv1_decoder_select="dsputil golomb rangecoder"
1573 ffv1_encoder_select="dsputil rangecoder"
1574 ffvhuff_decoder_select="dsputil"
1575 ffvhuff_encoder_select="dsputil huffman"
1576 flac_decoder_select="golomb"
1577 flac_encoder_select="dsputil golomb lpc"
1578 flashsv_decoder_deps="zlib"
1579 flashsv_encoder_deps="zlib"
1580 flashsv2_decoder_deps="zlib"
1581 flv_decoder_select="h263_decoder"
1582 flv_encoder_select="h263_encoder"
1583 fourxm_decoder_select="dsputil"
1584 fraps_decoder_select="dsputil huffman"
1585 g2m_decoder_deps="zlib"
1586 g2m_decoder_select="dsputil"
1587 h261_decoder_select="error_resilience mpegvideo"
1588 h261_encoder_select="aandcttables mpegvideoenc"
1589 h263_decoder_select="error_resilience h263_parser mpegvideo"
1590 h263_encoder_select="aandcttables mpegvideoenc"
1591 h263i_decoder_select="h263_decoder"
1592 h263p_encoder_select="h263_encoder"
1593 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1594 h264_decoder_suggest="error_resilience"
1595 huffyuv_decoder_select="dsputil"
1596 huffyuv_encoder_select="dsputil huffman"
1597 iac_decoder_select="dsputil fft mdct sinewin"
1598 imc_decoder_select="dsputil fft mdct sinewin"
1599 indeo3_decoder_select="hpeldsp"
1600 interplay_video_decoder_select="hpeldsp"
1601 jpegls_decoder_select="dsputil golomb hpeldsp"
1602 jpegls_encoder_select="golomb"
1603 jv_decoder_select="dsputil"
1604 lagarith_decoder_select="dsputil"
1605 ljpeg_encoder_select="aandcttables mpegvideoenc"
1606 loco_decoder_select="golomb"
1607 mdec_decoder_select="dsputil error_resilience mpegvideo"
1608 mimic_decoder_select="dsputil hpeldsp"
1609 mjpeg_decoder_select="dsputil hpeldsp"
1610 mjpegb_decoder_select="dsputil hpeldsp"
1611 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1612 mlp_decoder_select="dsputil mlp_parser"
1613 motionpixels_decoder_select="dsputil"
1614 mp1_decoder_select="mpegaudio"
1615 mp1float_decoder_select="mpegaudio"
1616 mp2_decoder_select="mpegaudio"
1617 mp2float_decoder_select="mpegaudio"
1618 mp3_decoder_select="mpegaudio"
1619 mp3adu_decoder_select="mpegaudio"
1620 mp3adufloat_decoder_select="mpegaudio"
1621 mp3float_decoder_select="mpegaudio"
1622 mp3on4_decoder_select="mpegaudio"
1623 mp3on4float_decoder_select="mpegaudio"
1624 mpc7_decoder_select="dsputil mpegaudiodsp"
1625 mpc8_decoder_select="dsputil mpegaudiodsp"
1626 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1627 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1628 mpeg1video_decoder_select="error_resilience mpegvideo"
1629 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1630 mpeg2video_decoder_select="error_resilience mpegvideo"
1631 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1632 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1633 mpeg4_encoder_select="h263_encoder"
1634 msmpeg4v1_decoder_select="h263_decoder"
1635 msmpeg4v2_decoder_select="h263_decoder"
1636 msmpeg4v2_encoder_select="h263_encoder"
1637 msmpeg4v3_decoder_select="h263_decoder"
1638 msmpeg4v3_encoder_select="h263_encoder"
1639 mss2_decoder_select="error_resilience vc1_decoder"
1640 mxpeg_decoder_select="dsputil hpeldsp"
1641 nellymoser_decoder_select="mdct sinewin"
1642 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1643 nuv_decoder_select="dsputil lzo"
1644 png_decoder_deps="zlib"
1645 png_decoder_select="dsputil"
1646 png_encoder_deps="zlib"
1647 png_encoder_select="dsputil"
1648 prores_decoder_select="dsputil"
1649 prores_encoder_select="dsputil"
1650 qcelp_decoder_select="lsp"
1651 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1652 ra_144_encoder_select="audio_frame_queue lpc"
1653 ralf_decoder_select="golomb"
1654 rv10_decoder_select="error_resilience h263_decoder"
1655 rv10_encoder_select="h263_encoder"
1656 rv20_decoder_select="error_resilience h263_decoder"
1657 rv20_encoder_select="h263_encoder"
1658 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1659 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1660 shorten_decoder_select="golomb"
1661 sipr_decoder_select="lsp"
1662 sp5x_decoder_select="dsputil hpeldsp"
1663 svq1_decoder_select="hpeldsp"
1664 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1665 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1666 svq3_decoder_suggest="error_resilience zlib"
1667 tak_decoder_select="dsputil"
1668 theora_decoder_select="vp3_decoder"
1669 tiff_decoder_suggest="zlib"
1670 tiff_encoder_suggest="zlib"
1671 thp_decoder_select="dsputil hpeldsp"
1672 truehd_decoder_select="mlp_decoder"
1673 truemotion2_decoder_select="dsputil"
1674 truespeech_decoder_select="dsputil"
1675 tscc_decoder_deps="zlib"
1676 twinvq_decoder_select="mdct lsp sinewin"
1677 utvideo_decoder_select="dsputil"
1678 utvideo_encoder_select="dsputil huffman"
1679 vble_decoder_select="dsputil"
1680 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1681 vc1image_decoder_select="vc1_decoder"
1682 vorbis_decoder_select="mdct"
1683 vorbis_encoder_select="mdct"
1684 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1685 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1686 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1687 vp6a_decoder_select="vp6_decoder"
1688 vp6f_decoder_select="vp6_decoder"
1689 vp8_decoder_select="h264pred videodsp"
1690 wmapro_decoder_select="mdct sinewin"
1691 wmav1_decoder_select="mdct sinewin"
1692 wmav1_encoder_select="mdct sinewin"
1693 wmav2_decoder_select="mdct sinewin"
1694 wmav2_encoder_select="mdct sinewin"
1695 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1696 wmv1_decoder_select="h263_decoder"
1697 wmv1_encoder_select="h263_encoder"
1698 wmv2_decoder_select="h263_decoder videodsp"
1699 wmv2_encoder_select="h263_encoder"
1700 wmv3_decoder_select="vc1_decoder"
1701 wmv3image_decoder_select="wmv3_decoder"
1702 zerocodec_decoder_deps="zlib"
1703 zlib_decoder_deps="zlib"
1704 zlib_encoder_deps="zlib"
1705 zmbv_decoder_deps="zlib"
1706 zmbv_encoder_deps="zlib"
1707
1708 # hardware accelerators
1709 dxva2_deps="dxva2api_h"
1710 vaapi_deps="va_va_h"
1711 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1712 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1713 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1714
1715 h263_vaapi_hwaccel_deps="vaapi"
1716 h263_vaapi_hwaccel_select="h263_decoder"
1717 h263_vdpau_hwaccel_deps="vdpau"
1718 h263_vdpau_hwaccel_select="h263_decoder"
1719 h264_dxva2_hwaccel_deps="dxva2"
1720 h264_dxva2_hwaccel_select="h264_decoder"
1721 h264_vaapi_hwaccel_deps="vaapi"
1722 h264_vaapi_hwaccel_select="h264_decoder"
1723 h264_vda_hwaccel_deps="vda"
1724 h264_vda_hwaccel_select="h264_decoder"
1725 h264_vdpau_hwaccel_deps="vdpau"
1726 h264_vdpau_hwaccel_select="h264_decoder"
1727 mpeg1_vdpau_hwaccel_deps="vdpau"
1728 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1729 mpeg2_dxva2_hwaccel_deps="dxva2"
1730 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1731 mpeg2_vaapi_hwaccel_deps="vaapi"
1732 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1733 mpeg2_vdpau_hwaccel_deps="vdpau"
1734 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1735 mpeg4_vaapi_hwaccel_deps="vaapi"
1736 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1737 mpeg4_vdpau_hwaccel_deps="vdpau"
1738 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1739 vc1_dxva2_hwaccel_deps="dxva2"
1740 vc1_dxva2_hwaccel_select="vc1_decoder"
1741 vc1_vaapi_hwaccel_deps="vaapi"
1742 vc1_vaapi_hwaccel_select="vc1_decoder"
1743 vc1_vdpau_hwaccel_deps="vdpau"
1744 vc1_vdpau_hwaccel_select="vc1_decoder"
1745 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1746 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1747 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1748
1749 # parsers
1750 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1751 mpeg4video_parser_select="error_resilience mpegvideo"
1752 mpegvideo_parser_select="error_resilience mpegvideo"
1753 vc1_parser_select="mpegvideo"
1754
1755 # external libraries
1756 libfaac_encoder_deps="libfaac"
1757 libfaac_encoder_select="audio_frame_queue"
1758 libfdk_aac_encoder_deps="libfdk_aac"
1759 libfdk_aac_encoder_select="audio_frame_queue"
1760 libgsm_decoder_deps="libgsm"
1761 libgsm_encoder_deps="libgsm"
1762 libgsm_ms_decoder_deps="libgsm"
1763 libgsm_ms_encoder_deps="libgsm"
1764 libilbc_decoder_deps="libilbc"
1765 libilbc_encoder_deps="libilbc"
1766 libmp3lame_encoder_deps="libmp3lame"
1767 libmp3lame_encoder_select="audio_frame_queue"
1768 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1769 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1770 libopencore_amrnb_encoder_select="audio_frame_queue"
1771 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1772 libopenjpeg_decoder_deps="libopenjpeg"
1773 libopenjpeg_encoder_deps="libopenjpeg"
1774 libopus_decoder_deps="libopus"
1775 libopus_encoder_deps="libopus"
1776 libopus_encoder_select="audio_frame_queue"
1777 libschroedinger_decoder_deps="libschroedinger"
1778 libschroedinger_encoder_deps="libschroedinger"
1779 libspeex_decoder_deps="libspeex"
1780 libspeex_encoder_deps="libspeex"
1781 libspeex_encoder_select="audio_frame_queue"
1782 libtheora_encoder_deps="libtheora"
1783 libvo_aacenc_encoder_deps="libvo_aacenc"
1784 libvo_aacenc_encoder_select="audio_frame_queue"
1785 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1786 libvorbis_encoder_deps="libvorbis"
1787 libvorbis_encoder_select="audio_frame_queue"
1788 libvpx_vp8_decoder_deps="libvpx"
1789 libvpx_vp8_encoder_deps="libvpx"
1790 libvpx_vp9_decoder_deps="libvpx"
1791 libvpx_vp9_encoder_deps="libvpx"
1792 libwavpack_encoder_deps="libwavpack"
1793 libx264_encoder_deps="libx264"
1794 libxavs_encoder_deps="libxavs"
1795 libxvid_encoder_deps="libxvid"
1796
1797 # demuxers / muxers
1798 ac3_demuxer_select="ac3_parser"
1799 asf_demuxer_select="riffdec"
1800 asf_muxer_select="riffenc"
1801 asf_stream_muxer_select="asf_muxer"
1802 avi_demuxer_select="riffdec"
1803 avi_muxer_select="riffenc"
1804 avisynth_demuxer_deps="avisynth"
1805 avisynth_demuxer_select="riffdec"
1806 caf_demuxer_select="riffdec"
1807 dirac_demuxer_select="dirac_parser"
1808 dxa_demuxer_select="riffdec"
1809 eac3_demuxer_select="ac3_parser"
1810 flac_demuxer_select="flac_parser"
1811 ipod_muxer_select="mov_muxer"
1812 ismv_muxer_select="mov_muxer"
1813 matroska_audio_muxer_select="matroska_muxer"
1814 matroska_demuxer_select="riffdec"
1815 matroska_demuxer_suggest="bzlib lzo zlib"
1816 matroska_muxer_select="riffenc"
1817 mmf_muxer_select="riffenc"
1818 mov_demuxer_select="riffdec"
1819 mov_demuxer_suggest="zlib"
1820 mov_muxer_select="riffenc rtpenc_chain"
1821 mp3_demuxer_select="mpegaudio_parser"
1822 mp4_muxer_select="mov_muxer"
1823 mpegts_muxer_select="adts_muxer latm_muxer"
1824 mpegtsraw_demuxer_select="mpegts_demuxer"
1825 mxf_d10_muxer_select="mxf_muxer"
1826 nut_muxer_select="riffenc"
1827 nuv_demuxer_select="riffdec"
1828 ogg_demuxer_select="golomb"
1829 psp_muxer_select="mov_muxer"
1830 rtp_demuxer_select="sdp_demuxer"
1831 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1832 rtsp_demuxer_select="http_protocol rtpdec"
1833 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1834 sap_demuxer_select="sdp_demuxer"
1835 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1836 sdp_demuxer_select="rtpdec"
1837 smoothstreaming_muxer_select="ismv_muxer"
1838 spdif_muxer_select="aac_parser"
1839 tak_demuxer_select="tak_parser"
1840 tg2_muxer_select="mov_muxer"
1841 tgp_muxer_select="mov_muxer"
1842 w64_demuxer_select="wav_demuxer"
1843 wav_demuxer_select="riffdec"
1844 wav_muxer_select="riffenc"
1845 webm_muxer_select="riffenc"
1846 wtv_demuxer_select="riffdec"
1847 xmv_demuxer_select="riffdec"
1848 xwma_demuxer_select="riffdec"
1849
1850 # indevs / outdevs
1851 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1852 alsa_outdev_deps="alsa_asoundlib_h"
1853 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1854 dv1394_indev_deps="dv1394"
1855 dv1394_indev_select="dv_demuxer"
1856 fbdev_indev_deps="linux_fb_h"
1857 jack_indev_deps="jack_jack_h pthreads"
1858 libcdio_indev_deps="libcdio"
1859 libdc1394_indev_deps="libdc1394"
1860 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1861 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1862 pulse_indev_deps="libpulse"
1863 sndio_indev_deps="sndio_h"
1864 sndio_outdev_deps="sndio_h"
1865 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1866 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1867 vfwcap_indev_extralibs="-lavicap32"
1868 x11grab_indev_deps="x11grab XShmCreateImage"
1869
1870 # protocols
1871 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1872 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1873 ffrtmpcrypt_protocol_select="tcp_protocol"
1874 ffrtmphttp_protocol_deps="!librtmp_protocol"
1875 ffrtmphttp_protocol_select="http_protocol"
1876 gopher_protocol_select="network"
1877 httpproxy_protocol_select="tcp_protocol"
1878 http_protocol_select="tcp_protocol"
1879 https_protocol_select="tls_protocol"
1880 librtmp_protocol_deps="librtmp"
1881 librtmpe_protocol_deps="librtmp"
1882 librtmps_protocol_deps="librtmp"
1883 librtmpt_protocol_deps="librtmp"
1884 librtmpte_protocol_deps="librtmp"
1885 mmsh_protocol_select="http_protocol"
1886 mmst_protocol_select="network"
1887 rtmp_protocol_deps="!librtmp_protocol"
1888 rtmp_protocol_select="tcp_protocol"
1889 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1890 rtmps_protocol_deps="!librtmp_protocol"
1891 rtmps_protocol_select="tls_protocol"
1892 rtmpt_protocol_select="ffrtmphttp_protocol"
1893 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1894 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1895 rtp_protocol_select="udp_protocol"
1896 sctp_protocol_deps="struct_sctp_event_subscribe"
1897 sctp_protocol_select="network"
1898 srtp_protocol_select="rtp_protocol"
1899 tcp_protocol_select="network"
1900 tls_protocol_deps_any="openssl gnutls"
1901 tls_protocol_select="tcp_protocol"
1902 udp_protocol_select="network"
1903 unix_protocol_deps="sys_un_h"
1904 unix_protocol_select="network"
1905
1906 # filters
1907 blackframe_filter_deps="gpl"
1908 boxblur_filter_deps="gpl"
1909 cropdetect_filter_deps="gpl"
1910 delogo_filter_deps="gpl"
1911 drawtext_filter_deps="libfreetype"
1912 frei0r_filter_deps="frei0r dlopen strtok_r"
1913 frei0r_filter_extralibs='$ldl'
1914 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1915 frei0r_src_filter_extralibs='$ldl'
1916 hqdn3d_filter_deps="gpl"
1917 interlace_filter_deps="gpl"
1918 resample_filter_deps="avresample"
1919 ocv_filter_deps="libopencv"
1920 scale_filter_deps="swscale"
1921 yadif_filter_deps="gpl"
1922
1923 # libraries
1924 avcodec_deps="avutil"
1925 avdevice_deps="avutil avcodec avformat"
1926 avfilter_deps="avutil"
1927 avformat_deps="avutil avcodec"
1928 avresample_deps="avutil"
1929 swscale_deps="avutil"
1930
1931 # programs
1932 avconv_deps="avcodec avfilter avformat avresample swscale"
1933 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
1934                fps_filter null_filter resample_filter scale_filter
1935                setpts_filter trim_filter"
1936 avplay_deps="avcodec avformat avresample swscale sdl"
1937 avplay_select="rdft"
1938 avprobe_deps="avcodec avformat"
1939 avserver_deps="avformat fork !shared"
1940 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
1941 avserver_extralibs='$ldl'
1942
1943 doc_deps="texi2html"
1944
1945 # default parameters
1946
1947 logfile="config.log"
1948
1949 # installation paths
1950 prefix_default="/usr/local"
1951 bindir_default='${prefix}/bin'
1952 datadir_default='${prefix}/share/avconv'
1953 incdir_default='${prefix}/include'
1954 libdir_default='${prefix}/lib'
1955 mandir_default='${prefix}/share/man'
1956 shlibdir_default="$libdir_default"
1957
1958 # toolchain
1959 ar_default="ar"
1960 cc_default="gcc"
1961 host_cc_default="gcc"
1962 cp_f="cp -f"
1963 ln_s="ln -s -f"
1964 nm_default="nm -g"
1965 objformat="elf"
1966 pkg_config_default=pkg-config
1967 ranlib="ranlib"
1968 yasmexe="yasm"
1969
1970 nogas=":"
1971
1972 # machine
1973 arch_default=$(uname -m)
1974 cpu="generic"
1975
1976 # OS
1977 target_os_default=$(tolower $(uname -s))
1978 host_os=$target_os_default
1979
1980 # configurable options
1981 enable $LIBRARY_LIST $PROGRAM_LIST
1982
1983 enable asm
1984 enable debug
1985 enable doc
1986 enable optimizations
1987 enable safe_bitstream_reader
1988 enable static
1989 enable swscale_alpha
1990
1991 # By default, enable only those hwaccels that have no external dependencies.
1992 enable dxva2 vdpau
1993
1994 # build settings
1995 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1996 LIBPREF="lib"
1997 LIBSUF=".a"
1998 FULLNAME='$(NAME)$(BUILDSUF)'
1999 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2000 SLIBPREF="lib"
2001 SLIBSUF=".so"
2002 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2003 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2004 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2005 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2006 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2007 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2008
2009 asflags_filter=echo
2010 cflags_filter=echo
2011 ldflags_filter=echo
2012
2013 AS_C='-c'
2014 AS_O='-o $@'
2015 CC_C='-c'
2016 CC_E='-E -o $@'
2017 CC_O='-o $@'
2018 LD_O='-o $@'
2019 LD_LIB='-l%'
2020 LD_PATH='-L'
2021 HOSTCC_C='-c'
2022 HOSTCC_O='-o $@'
2023 HOSTLD_O='-o $@'
2024
2025 host_cflags='-O3 -g'
2026 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2027 host_libs='-lm'
2028 host_cflags_filter=echo
2029 host_ldflags_filter=echo
2030
2031 target_path='$(CURDIR)'
2032
2033 # since the object filename is not given with the -MM flag, the compiler
2034 # is only able to print the basename, and we must add the path ourselves
2035 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2036 DEPFLAGS='-MM'
2037
2038 # find source path
2039 if test -f configure; then
2040     source_path=.
2041 else
2042     source_path=$(cd $(dirname "$0"); pwd)
2043     echo "$source_path" | grep -q '[[:blank:]]' &&
2044         die "Out of tree builds are impossible with whitespace in source path."
2045     test -e "$source_path/config.h" &&
2046         die "Out of tree builds are impossible with config.h in source dir."
2047 fi
2048
2049 for v in "$@"; do
2050     r=${v#*=}
2051     l=${v%"$r"}
2052     r=$(sh_quote "$r")
2053     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2054 done
2055
2056 find_things(){
2057     thing=$1
2058     pattern=$2
2059     file=$source_path/$3
2060     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2061 }
2062
2063 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2064 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2065 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2066 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2067 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2068 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2069 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2070 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2071 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2072 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2073 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2074
2075 ALL_COMPONENTS="
2076     $BSF_LIST
2077     $DECODER_LIST
2078     $DEMUXER_LIST
2079     $ENCODER_LIST
2080     $FILTER_LIST
2081     $HWACCEL_LIST
2082     $INDEV_LIST
2083     $MUXER_LIST
2084     $OUTDEV_LIST
2085     $PARSER_LIST
2086     $PROTOCOL_LIST
2087 "
2088
2089 for n in $COMPONENT_LIST; do
2090     v=$(toupper ${n%s})_LIST
2091     eval enable \$$v
2092     eval ${n}_if_any="\$$v"
2093 done
2094
2095 enable $ARCH_EXT_LIST
2096
2097 die_unknown(){
2098     echo "Unknown option \"$1\"."
2099     echo "See $0 --help for available options."
2100     exit 1
2101 }
2102
2103 print_3_columns() {
2104     cat | tr ' ' '\n' | sort | pr -r -3 -t
2105 }
2106
2107 show_list() {
2108     suffix=_$1
2109     shift
2110     echo $* | sed s/$suffix//g | print_3_columns
2111     exit 0
2112 }
2113
2114 rand_list(){
2115     IFS=', '
2116     set -- $*
2117     unset IFS
2118     for thing; do
2119         comp=${thing%:*}
2120         prob=${thing#$comp}
2121         prob=${prob#:}
2122         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2123         echo "prob ${prob:-0.5}"
2124         printf '%s\n' $comp
2125     done
2126 }
2127
2128 do_random(){
2129     action=$1
2130     shift
2131     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2132     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2133 }
2134
2135 for opt do
2136     optval="${opt#*=}"
2137     case "$opt" in
2138         --extra-ldflags=*)
2139             add_ldflags $optval
2140         ;;
2141         --extra-libs=*)
2142             add_extralibs $optval
2143         ;;
2144         --disable-devices)
2145             disable $INDEV_LIST $OUTDEV_LIST
2146         ;;
2147         --enable-debug=*)
2148             debuglevel="$optval"
2149         ;;
2150         --disable-programs)
2151             disable $PROGRAM_LIST
2152         ;;
2153         --disable-everything)
2154             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2155         ;;
2156         --disable-all)
2157             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2158             disable $LIBRARY_LIST $PROGRAM_LIST doc
2159         ;;
2160         --enable-random|--disable-random)
2161             action=${opt%%-random}
2162             do_random ${action#--} $COMPONENT_LIST
2163         ;;
2164         --enable-random=*|--disable-random=*)
2165             action=${opt%%-random=*}
2166             do_random ${action#--} $optval
2167         ;;
2168         --enable-*=*|--disable-*=*)
2169             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2170             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2171             eval list=\$$(toupper $thing)_LIST
2172             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2173             $action $(filter "$name" $list)
2174         ;;
2175         --enable-?*|--disable-?*)
2176             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2177             if is_in $option $COMPONENT_LIST; then
2178                 test $action = disable && action=unset
2179                 eval $action \$$(toupper ${option%s})_LIST
2180             elif is_in $option $CMDLINE_SELECT; then
2181                 $action $option
2182             else
2183                 die_unknown $opt
2184             fi
2185         ;;
2186         --list-*)
2187             NAME="${opt#--list-}"
2188             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2189             NAME=${NAME%s}
2190             eval show_list $NAME \$$(toupper $NAME)_LIST
2191         ;;
2192         --help|-h) show_help
2193         ;;
2194         *)
2195             optname="${opt%%=*}"
2196             optname="${optname#--}"
2197             optname=$(echo "$optname" | sed 's/-/_/g')
2198             if is_in $optname $CMDLINE_SET; then
2199                 eval $optname='$optval'
2200             elif is_in $optname $CMDLINE_APPEND; then
2201                 append $optname "$optval"
2202             else
2203                 die_unknown $opt
2204             fi
2205         ;;
2206     esac
2207 done
2208
2209 disabled logging && logfile=/dev/null
2210
2211 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2212 set >> $logfile
2213
2214 test -n "$cross_prefix" && enable cross_compile
2215
2216 if enabled cross_compile; then
2217     test -n "$arch" && test -n "$target_os" ||
2218         die "Must specify target arch and OS when cross-compiling"
2219 fi
2220
2221 ar_default="${cross_prefix}${ar_default}"
2222 cc_default="${cross_prefix}${cc_default}"
2223 nm_default="${cross_prefix}${nm_default}"
2224 pkg_config_default="${cross_prefix}${pkg_config_default}"
2225 ranlib="${cross_prefix}${ranlib}"
2226
2227 sysinclude_default="${sysroot}/usr/include"
2228
2229 case "$toolchain" in
2230     clang-asan)
2231         cc_default="clang"
2232         add_cflags  -fsanitize=address
2233         add_ldflags -fsanitize=address
2234     ;;
2235     clang-tsan)
2236         cc_default="clang"
2237         add_cflags  -fsanitize=thread -pie
2238         add_ldflags -fsanitize=thread -pie
2239     ;;
2240     gcc-asan)
2241         cc_default="gcc"
2242         add_cflags  -fsanitize=address
2243         add_ldflags -fsanitize=address
2244     ;;
2245     gcc-tsan)
2246         cc_default="gcc"
2247         add_cflags  -fsanitize=thread -pie -fPIC
2248         add_ldflags -fsanitize=thread -pie -fPIC
2249     ;;
2250     valgrind-massif)
2251         target_exec_default="valgrind"
2252         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2253     ;;
2254     valgrind-memcheck)
2255         target_exec_default="valgrind"
2256         target_exec_args="--track-origins=yes --leak-check=full"
2257     ;;
2258     msvc)
2259         cc_default="c99wrap cl"
2260         ld_default="c99wrap link"
2261         nm_default="dumpbin -symbols"
2262         ar_default="lib"
2263         target_os_default="win32"
2264     ;;
2265     icl)
2266         cc_default="c99wrap -noconv icl"
2267         ld_default="c99wrap xilink"
2268         nm_default="dumpbin -symbols"
2269         ar_default="xilib"
2270         target_os_default="win32"
2271     ;;
2272     gcov)
2273         add_cflags  -fprofile-arcs -ftest-coverage
2274         add_ldflags -fprofile-arcs -ftest-coverage
2275     ;;
2276     ?*)
2277         die "Unknown toolchain $toolchain"
2278     ;;
2279 esac
2280
2281 set_default arch cc pkg_config sysinclude target_exec target_os
2282 enabled cross_compile || host_cc_default=$cc
2283 set_default host_cc
2284
2285 if ! $pkg_config --version >/dev/null 2>&1; then
2286     warn "$pkg_config not found, library detection may fail."
2287     pkg_config=false
2288 fi
2289
2290 exesuf() {
2291     case $1 in
2292         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2293     esac
2294 }
2295
2296 EXESUF=$(exesuf $target_os)
2297 HOSTEXESUF=$(exesuf $host_os)
2298
2299 # set temporary file name
2300 : ${TMPDIR:=$TEMPDIR}
2301 : ${TMPDIR:=$TMP}
2302 : ${TMPDIR:=/tmp}
2303
2304 if ! check_cmd mktemp -u XXXXXX; then
2305     # simple replacement for missing mktemp
2306     # NOT SAFE FOR GENERAL USE
2307     mktemp(){
2308         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2309     }
2310 fi
2311
2312 tmpfile(){
2313     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2314         (set -C; exec > $tmp) 2>/dev/null ||
2315         die "Unable to create temporary file in $TMPDIR."
2316     append TMPFILES $tmp
2317     eval $1=$tmp
2318 }
2319
2320 trap 'rm -f -- $TMPFILES' EXIT
2321
2322 tmpfile TMPASM .asm
2323 tmpfile TMPC   .c
2324 tmpfile TMPE   $EXESUF
2325 tmpfile TMPH   .h
2326 tmpfile TMPO   .o
2327 tmpfile TMPS   .S
2328 tmpfile TMPSH  .sh
2329 tmpfile TMPV   .ver
2330
2331 unset -f mktemp
2332
2333 chmod +x $TMPE
2334
2335 # make sure we can execute files in $TMPDIR
2336 cat > $TMPSH 2>> $logfile <<EOF
2337 #! /bin/sh
2338 EOF
2339 chmod +x $TMPSH >> $logfile 2>&1
2340 if ! $TMPSH >> $logfile 2>&1; then
2341     cat <<EOF
2342 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2343 variable to another directory and make sure that it is not mounted noexec.
2344 EOF
2345     die "Sanity test failed."
2346 fi
2347
2348 ccc_flags(){
2349     for flag; do
2350         case $flag in
2351             -std=c99)           echo -c99                       ;;
2352             -mcpu=*)            echo -arch ${flag#*=}           ;;
2353             -mieee)             echo -ieee                      ;;
2354             -O*|-fast)          echo $flag                      ;;
2355             -fno-math-errno)    echo -assume nomath_errno       ;;
2356             -g)                 echo -g3                        ;;
2357             -Wall)              echo -msg_enable level2         ;;
2358             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2359             -Wl,*)              echo $flag                      ;;
2360             -f*|-W*)                                            ;;
2361             *)                  echo $flag                      ;;
2362         esac
2363    done
2364 }
2365
2366 msvc_common_flags(){
2367     for flag; do
2368         case $flag in
2369             # In addition to specifying certain flags under the compiler
2370             # specific filters, they must be specified here as well or else the
2371             # generic catch all at the bottom will print the original flag.
2372             -Wall)                ;;
2373             -std=c99)             ;;
2374             # Common flags
2375             -fomit-frame-pointer) ;;
2376             -g)                   echo -Z7 ;;
2377             -fno-math-errno)      ;;
2378             -fno-common)          ;;
2379             -fno-signed-zeros)    ;;
2380             -fPIC)                ;;
2381             -mthumb)              ;;
2382             -march=*)             ;;
2383             -lz)                  echo zlib.lib ;;
2384             -lavifil32)           echo vfw32.lib ;;
2385             -lavicap32)           echo vfw32.lib user32.lib ;;
2386             -l*)                  echo ${flag#-l}.lib ;;
2387             *)                    echo $flag ;;
2388         esac
2389     done
2390 }
2391
2392 msvc_flags(){
2393     msvc_common_flags "$@"
2394     for flag; do
2395         case $flag in
2396             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2397                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2398                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2399                                        -wd4996 -wd4273 ;;
2400         esac
2401     done
2402 }
2403
2404 icl_flags(){
2405     msvc_common_flags "$@"
2406     for flag; do
2407         case $flag in
2408             # Despite what Intel's documentation says -Wall, which is supported
2409             # on Windows, does enable remarks so disable them here.
2410             -Wall)                echo $flag -Qdiag-disable:remark ;;
2411             -std=c99)             echo -Qstd=c99 ;;
2412         esac
2413     done
2414 }
2415
2416 pgi_flags(){
2417     for flag; do
2418         case $flag in
2419             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2420             -fomit-frame-pointer) echo -Mnoframe ;;
2421             -g)                   echo -gopt ;;
2422             *)                    echo $flag ;;
2423         esac
2424     done
2425 }
2426
2427 suncc_flags(){
2428     for flag; do
2429         case $flag in
2430             -march=*|-mcpu=*)
2431                 case "${flag#*=}" in
2432                     native)                   echo -xtarget=native       ;;
2433                     v9|niagara)               echo -xarch=sparc          ;;
2434                     ultrasparc)               echo -xarch=sparcvis       ;;
2435                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2436                     i586|pentium)             echo -xchip=pentium        ;;
2437                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2438                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2439                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2440                     pentium4*)          echo -xtarget=pentium4           ;;
2441                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2442                     *-sse3)             echo -xarch=sse3                 ;;
2443                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2444                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2445                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2446                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2447                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2448                     k8|opteron|athlon64|athlon-fx)
2449                                                echo -xarch=sse2a         ;;
2450                     athlon*)                   echo -xarch=pentium_proa  ;;
2451                 esac
2452                 ;;
2453             -std=c99)             echo -xc99              ;;
2454             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2455             -fPIC)                echo -KPIC -xcode=pic32 ;;
2456             -W*,*)                echo $flag              ;;
2457             -f*-*|-W*|-mimpure-text)                      ;;
2458             -shared)              echo -G                 ;;
2459             *)                    echo $flag              ;;
2460         esac
2461     done
2462 }
2463
2464 tms470_flags(){
2465     for flag; do
2466         case $flag in
2467             -march=*|-mcpu=*)
2468                 case "${flag#*=}" in
2469                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2470                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2471                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2472                     armv6*|arm11*)          echo -mv=6   ;;
2473                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2474                                             echo -mv=5e  ;;
2475                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2476                 esac
2477                 ;;
2478             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2479             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2480             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2481             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2482             -msoft-float)   echo --float_support=vfplib       ;;
2483             -O[0-3]|-mf=*)  echo $flag                        ;;
2484             -g)             echo -g -mn                       ;;
2485             -pds=*)         echo $flag                        ;;
2486             -D*|-I*)        echo $flag                        ;;
2487             --gcc|--abi=*)  echo $flag                        ;;
2488             -me)            echo $flag                        ;;
2489         esac
2490     done
2491 }
2492
2493 probe_cc(){
2494     pfx=$1
2495     _cc=$2
2496
2497     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2498     unset _ld_o _ldflags _ld_lib _ld_path
2499     unset _depflags _DEPCMD _DEPFLAGS
2500     _flags_filter=echo
2501
2502     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2503         _type=llvm_gcc
2504         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2505         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2506         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2507         _cflags_speed='-O3'
2508         _cflags_size='-Os'
2509     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2510         _type=gcc
2511         gcc_version=$($_cc --version | head -n1)
2512         gcc_basever=$($_cc -dumpversion)
2513         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2514         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2515         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2516         if ! $_cc -dumpversion | grep -q '^2\.'; then
2517             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2518         fi
2519         _cflags_speed='-O3'
2520         _cflags_size='-Os'
2521     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2522         _type=icc
2523         _ident=$($_cc --version | head -n1)
2524         _depflags='-MMD'
2525         _cflags_speed='-O3'
2526         _cflags_size='-Os'
2527         _cflags_noopt='-O1'
2528     elif $_cc -v 2>&1 | grep -q xlc; then
2529         _type=xlc
2530         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2531         _cflags_speed='-O5'
2532         _cflags_size='-O5 -qcompact'
2533     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2534         _type=ccc
2535         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2536         _DEPFLAGS='-M'
2537         _cflags_speed='-fast'
2538         _cflags_size='-O1'
2539         _flags_filter=ccc_flags
2540     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2541         test -d "$sysroot" || die "No valid sysroot specified."
2542         _type=armcc
2543         _ident=$($_cc --vsn | head -n1)
2544         armcc_conf="$PWD/armcc.conf"
2545         $_cc --arm_linux_configure                 \
2546              --arm_linux_config_file="$armcc_conf" \
2547              --configure_sysroot="$sysroot"        \
2548              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2549              die "Error creating armcc configuration file."
2550         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2551         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2552         as_default="${cross_prefix}gcc"
2553         _depflags='-MMD'
2554         _cflags_speed='-O3'
2555         _cflags_size='-Os'
2556     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2557         _type=tms470
2558         _ident=$($_cc -version | head -n1 | tr -s ' ')
2559         _flags='--gcc --abi=eabi -me'
2560         _cc_e='-ppl -fe=$@'
2561         _cc_o='-fe=$@'
2562         _depflags='-ppa -ppd=$(@:.o=.d)'
2563         _cflags_speed='-O3 -mf=5'
2564         _cflags_size='-O3 -mf=2'
2565         _flags_filter=tms470_flags
2566     elif $_cc -v 2>&1 | grep -q clang; then
2567         _type=clang
2568         _ident=$($_cc --version | head -n1)
2569         _depflags='-MMD'
2570         _cflags_speed='-O3'
2571         _cflags_size='-Os'
2572     elif $_cc -V 2>&1 | grep -q Sun; then
2573         _type=suncc
2574         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2575         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2576         _DEPFLAGS='-xM1 -xc99'
2577         _ldflags='-std=c99'
2578         _cflags_speed='-O5'
2579         _cflags_size='-O5 -xspace'
2580         _flags_filter=suncc_flags
2581     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2582         _type=pathscale
2583         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2584         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2585         _cflags_speed='-O2'
2586         _cflags_size='-Os'
2587         _flags_filter='filter_out -Wdisabled-optimization'
2588     elif $_cc -v 2>&1 | grep -q Open64; then
2589         _type=open64
2590         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2591         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2592         _cflags_speed='-O2'
2593         _cflags_size='-Os'
2594         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2595     elif $_cc -V 2>&1 | grep -q Portland; then
2596         _type=pgi
2597         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2598         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2599         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2600         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2601         _cflags_noopt="-O1"
2602         _flags_filter=pgi_flags
2603     elif $_cc 2>&1 | grep -q Microsoft; then
2604         _type=msvc
2605         _ident=$($cc 2>&1 | head -n1)
2606         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2607         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2608         _cflags_speed="-O2"
2609         _cflags_size="-O1"
2610         # Nonstandard output options, to avoid msys path conversion issues.
2611         # Relies on wrapper to remap it.
2612         if $_cc 2>&1 | grep -q Linker; then
2613             _ld_o='-out $@'
2614         else
2615             _ld_o='-Fe$@'
2616         fi
2617         _cc_o='-Fo $@'
2618         _cc_e='-P -Fi $@'
2619         _flags_filter=msvc_flags
2620         _ld_lib='lib%.a'
2621         _ld_path='-libpath:'
2622         _flags='-nologo'
2623         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2624         if [ $pfx = hostcc ]; then
2625             append _cflags -Dsnprintf=_snprintf
2626         fi
2627     elif $_cc 2>&1 | grep -q Intel; then
2628         _type=icl
2629         _ident=$($cc 2>&1 | head -n1)
2630         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2631         # Not only is O3 broken on 13.x+ but it is slower on all previous
2632         # versions (tested) as well.
2633         _cflags_speed="-O2"
2634         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2635         # Nonstandard output options, to avoid msys path conversion issues.
2636         # Relies on wrapper to remap it.
2637         if $_cc 2>&1 | grep -q Linker; then
2638             _ld_o='-out $@'
2639         else
2640             _ld_o='-Fe$@'
2641         fi
2642         _cc_o='-Fo $@'
2643         _cc_e='-P'
2644         _flags_filter=icl_flags
2645         _ld_lib='lib%.a'
2646         _ld_path='-libpath:'
2647         # -Qdiag-error to make icl error when seeing certain unknown arguments
2648         _flags='-nologo -Qdiag-error:4044,10157'
2649         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2650         # with MSVC which enables it by default.
2651         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2652         if [ $pfx = hostcc ]; then
2653             append _cflags -Dsnprintf=_snprintf
2654         fi
2655     fi
2656
2657     eval ${pfx}_type=\$_type
2658     eval ${pfx}_ident=\$_ident
2659 }
2660
2661 set_ccvars(){
2662     eval ${1}_C=\${_cc_c-\${${1}_C}}
2663     eval ${1}_E=\${_cc_e-\${${1}_E}}
2664     eval ${1}_O=\${_cc_o-\${${1}_O}}
2665
2666     if [ -n "$_depflags" ]; then
2667         eval ${1}_DEPFLAGS=\$_depflags
2668     else
2669         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2670         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2671         eval DEP${1}FLAGS=\$_flags
2672     fi
2673 }
2674
2675 probe_cc cc "$cc"
2676 cflags_filter=$_flags_filter
2677 cflags_speed=$_cflags_speed
2678 cflags_size=$_cflags_size
2679 cflags_noopt=$_cflags_noopt
2680 add_cflags $_flags $_cflags
2681 cc_ldflags=$_ldflags
2682 set_ccvars CC
2683
2684 probe_cc hostcc "$host_cc"
2685 host_cflags_filter=$_flags_filter
2686 add_host_cflags  $_flags $_cflags
2687 set_ccvars HOSTCC
2688
2689 test -n "$cc_type" && enable $cc_type ||
2690     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2691
2692 : ${as_default:=$cc}
2693 : ${dep_cc_default:=$cc}
2694 : ${ld_default:=$cc}
2695 : ${host_ld_default:=$host_cc}
2696 set_default ar as dep_cc ld host_ld
2697
2698 probe_cc as "$as"
2699 asflags_filter=$_flags_filter
2700 add_asflags $_flags $_cflags
2701 set_ccvars AS
2702
2703 probe_cc ld "$ld"
2704 ldflags_filter=$_flags_filter
2705 add_ldflags $_flags $_ldflags
2706 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2707 LD_O=${_ld_o-$LD_O}
2708 LD_LIB=${_ld_lib-$LD_LIB}
2709 LD_PATH=${_ld_path-$LD_PATH}
2710
2711 probe_cc hostld "$host_ld"
2712 host_ldflags_filter=$_flags_filter
2713 add_host_ldflags $_flags $_ldflags
2714 HOSTLD_O=${_ld_o-$HOSTLD_O}
2715
2716 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2717     probe_cc depcc "$dep_cc"
2718     CCDEP=${_DEPCMD:-$DEPCMD}
2719     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2720     DEPCCFLAGS=$_flags
2721 fi
2722
2723 if $ar 2>&1 | grep -q Microsoft; then
2724     arflags="-nologo"
2725     ar_o='-out:$@'
2726 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2727     arflags="rq"
2728     ar_o='$@'
2729 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2730     arflags='-Xany -r -c'
2731     ar_o='$@'
2732 else
2733     arflags="rc"
2734     ar_o='$@'
2735 fi
2736
2737 add_cflags $extra_cflags
2738 add_asflags $extra_cflags
2739
2740 if test -n "$sysroot"; then
2741     case "$cc_type" in
2742         gcc|llvm_gcc|clang)
2743             add_cppflags --sysroot="$sysroot"
2744             add_ldflags --sysroot="$sysroot"
2745         ;;
2746         tms470)
2747             add_cppflags -I"$sysinclude"
2748             add_ldflags  --sysroot="$sysroot"
2749         ;;
2750     esac
2751 fi
2752
2753 if test "$cpu" = host; then
2754     enabled cross_compile &&
2755         die "--cpu=host makes no sense when cross-compiling."
2756
2757     case "$cc_type" in
2758         gcc|llvm_gcc)
2759             check_native(){
2760                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2761                 sed -n "/cc1.*$1=/{
2762                             s/.*$1=\\([^ ]*\\).*/\\1/
2763                             p
2764                             q
2765                         }" $TMPE
2766             }
2767             cpu=$(check_native -march || check_native -mcpu)
2768         ;;
2769     esac
2770
2771     test "${cpu:-host}" = host &&
2772         die "--cpu=host not supported with compiler $cc"
2773 fi
2774
2775 # Deal with common $arch aliases
2776 case "$arch" in
2777     aarch64|arm64)
2778         arch="aarch64"
2779     ;;
2780     arm*)
2781         arch="arm"
2782     ;;
2783     mips*|IP*)
2784         arch="mips"
2785     ;;
2786     parisc*|hppa*)
2787         arch="parisc"
2788     ;;
2789     "Power Macintosh"|ppc*|powerpc*)
2790         arch="ppc"
2791     ;;
2792     s390|s390x)
2793         arch="s390"
2794     ;;
2795     sh4|sh)
2796         arch="sh4"
2797     ;;
2798     sun4u|sparc*)
2799         arch="sparc"
2800     ;;
2801     tilegx|tile-gx)
2802         arch="tilegx"
2803     ;;
2804     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2805         arch="x86"
2806     ;;
2807 esac
2808
2809 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2810 enable $arch
2811
2812 # Add processor-specific flags
2813 if enabled aarch64; then
2814
2815     case $cpu in
2816         armv*)
2817             cpuflags="-march=$cpu"
2818         ;;
2819         *)
2820             cpuflags="-mcpu=$cpu"
2821         ;;
2822     esac
2823
2824 elif enabled alpha; then
2825
2826     cpuflags="-mcpu=$cpu"
2827
2828 elif enabled arm; then
2829
2830     check_arm_arch() {
2831         check_cpp_condition stddef.h \
2832             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2833             $cpuflags
2834     }
2835
2836     probe_arm_arch() {
2837         if   check_arm_arch 4;        then echo armv4;
2838         elif check_arm_arch 4T;       then echo armv4t;
2839         elif check_arm_arch 5;        then echo armv5;
2840         elif check_arm_arch 5E;       then echo armv5e;
2841         elif check_arm_arch 5T;       then echo armv5t;
2842         elif check_arm_arch 5TE;      then echo armv5te;
2843         elif check_arm_arch 5TEJ;     then echo armv5te;
2844         elif check_arm_arch 6;        then echo armv6;
2845         elif check_arm_arch 6J;       then echo armv6j;
2846         elif check_arm_arch 6K;       then echo armv6k;
2847         elif check_arm_arch 6Z;       then echo armv6z;
2848         elif check_arm_arch 6ZK;      then echo armv6zk;
2849         elif check_arm_arch 6T2;      then echo armv6t2;
2850         elif check_arm_arch 7;        then echo armv7;
2851         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2852         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2853         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2854         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2855         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2856         fi
2857     }
2858
2859     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2860
2861     case $cpu in
2862         armv*)
2863             cpuflags="-march=$cpu"
2864             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2865         ;;
2866         *)
2867             cpuflags="-mcpu=$cpu"
2868             case $cpu in
2869                 cortex-a*)                               subarch=armv7a  ;;
2870                 cortex-r*)                               subarch=armv7r  ;;
2871                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2872                 arm11*)                                  subarch=armv6   ;;
2873                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2874                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2875                 *)                             subarch=$(probe_arm_arch) ;;
2876             esac
2877         ;;
2878     esac
2879
2880     case "$subarch" in
2881         armv5t*)    enable fast_clz                ;;
2882         armv[6-8]*) enable fast_clz fast_unaligned ;;
2883     esac
2884
2885 elif enabled avr32; then
2886
2887     case $cpu in
2888         ap7[02]0[0-2])
2889             subarch="avr32_ap"
2890             cpuflags="-mpart=$cpu"
2891         ;;
2892         ap)
2893             subarch="avr32_ap"
2894             cpuflags="-march=$cpu"
2895         ;;
2896         uc3[ab]*)
2897             subarch="avr32_uc"
2898             cpuflags="-mcpu=$cpu"
2899         ;;
2900         uc)
2901             subarch="avr32_uc"
2902             cpuflags="-march=$cpu"
2903         ;;
2904     esac
2905
2906 elif enabled bfin; then
2907
2908     cpuflags="-mcpu=$cpu"
2909
2910 elif enabled mips; then
2911
2912     cpuflags="-march=$cpu"
2913
2914 elif enabled ppc; then
2915
2916     case $(tolower $cpu) in
2917         601|ppc601|powerpc601)
2918             cpuflags="-mcpu=601"
2919             disable altivec
2920         ;;
2921         603*|ppc603*|powerpc603*)
2922             cpuflags="-mcpu=603"
2923             disable altivec
2924         ;;
2925         604*|ppc604*|powerpc604*)
2926             cpuflags="-mcpu=604"
2927             disable altivec
2928         ;;
2929         g3|75*|ppc75*|powerpc75*)
2930             cpuflags="-mcpu=750"
2931             disable altivec
2932         ;;
2933         g4|745*|ppc745*|powerpc745*)
2934             cpuflags="-mcpu=7450"
2935         ;;
2936         74*|ppc74*|powerpc74*)
2937             cpuflags="-mcpu=7400"
2938         ;;
2939         g5|970|ppc970|powerpc970)
2940             cpuflags="-mcpu=970"
2941         ;;
2942         power[3-7]*)
2943             cpuflags="-mcpu=$cpu"
2944         ;;
2945         cell)
2946             cpuflags="-mcpu=cell"
2947             enable ldbrx
2948         ;;
2949         e500mc)
2950             cpuflags="-mcpu=e500mc"
2951             disable altivec
2952         ;;
2953         e500v2)
2954             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2955             disable altivec
2956         ;;
2957         e500)
2958             cpuflags="-mcpu=8540 -mhard-float"
2959             disable altivec
2960         ;;
2961     esac
2962
2963 elif enabled sparc; then
2964
2965     case $cpu in
2966         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2967             cpuflags="-mcpu=$cpu"
2968             disable vis
2969         ;;
2970         ultrasparc*|niagara[234])
2971             cpuflags="-mcpu=$cpu"
2972         ;;
2973     esac
2974
2975 elif enabled x86; then
2976
2977     case $cpu in
2978         i[345]86|pentium)
2979             cpuflags="-march=$cpu"
2980             disable mmx
2981         ;;
2982         # targets that do NOT support nopl and conditional mov (cmov)
2983         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2984             cpuflags="-march=$cpu"
2985             disable i686
2986         ;;
2987         # targets that do support nopl and conditional mov (cmov)
2988         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2989             cpuflags="-march=$cpu"
2990             enable i686
2991             enable fast_cmov
2992         ;;
2993         # targets that do support conditional mov but on which it's slow
2994         pentium4|pentium4m|prescott|nocona)
2995             cpuflags="-march=$cpu"
2996             enable i686
2997             disable fast_cmov
2998         ;;
2999     esac
3000
3001 fi
3002
3003 if [ "$cpu" != generic ]; then
3004     add_cflags  $cpuflags
3005     add_asflags $cpuflags
3006 fi
3007
3008 # compiler sanity check
3009 check_exec <<EOF
3010 int main(void){ return 0; }
3011 EOF
3012 if test "$?" != 0; then
3013     echo "$cc is unable to create an executable file."
3014     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3015         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3016         echo "Only do this if you know what cross compiling means."
3017     fi
3018     die "C compiler test failed."
3019 fi
3020
3021 add_cppflags -D_ISOC99_SOURCE
3022 check_cflags -std=c99
3023 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3024 #include <stdlib.h>
3025 EOF
3026 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3027 #include <stdlib.h>
3028 EOF
3029
3030 check_host_cflags -std=c99
3031 check_host_cflags -Wall
3032
3033 check_64bit(){
3034     arch32=$1
3035     arch64=$2
3036     expr=$3
3037     check_code cc "" "int test[2*($expr) - 1]" &&
3038         subarch=$arch64 || subarch=$arch32
3039 }
3040
3041 case "$arch" in
3042     aarch64|alpha|ia64)
3043         spic=$shared
3044     ;;
3045     mips)
3046         check_64bit mips mips64 '_MIPS_SIM > 1'
3047         spic=$shared
3048     ;;
3049     parisc)
3050         check_64bit parisc parisc64 'sizeof(void *) > 4'
3051         spic=$shared
3052     ;;
3053     ppc)
3054         check_64bit ppc ppc64 'sizeof(void *) > 4'
3055         spic=$shared
3056     ;;
3057     sparc)
3058         check_64bit sparc sparc64 'sizeof(void *) > 4'
3059         spic=$shared
3060     ;;
3061     x86)
3062         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3063         if test "$subarch" = "x86_64"; then
3064             spic=$shared
3065         fi
3066     ;;
3067 esac
3068
3069 enable $subarch
3070 enabled spic && enable_weak pic
3071
3072 # OS specific
3073 case $target_os in
3074     aix)
3075         SHFLAGS=-shared
3076         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3077         enabled shared && add_ldflags -Wl,-brtl
3078         ;;
3079     haiku)
3080         prefix_default="/boot/common"
3081         network_extralibs="-lnetwork"
3082         host_libs=
3083         ;;
3084     sunos)
3085         SHFLAGS='-shared -Wl,-h,$$(@F)'
3086         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3087         network_extralibs="-lsocket -lnsl"
3088         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3089         # When using suncc to build, the Solaris linker will mark
3090         # an executable with each instruction set encountered by
3091         # the Solaris assembler.  As our libraries contain their own
3092         # guards for processor-specific code, instead suppress
3093         # generation of the HWCAPS ELF section on Solaris x86 only.
3094         enabled_all suncc x86 &&
3095             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3096             add_ldflags -Wl,-M,mapfile
3097         nm_default='nm -P -g'
3098         ;;
3099     netbsd)
3100         disable symver
3101         oss_indev_extralibs="-lossaudio"
3102         oss_outdev_extralibs="-lossaudio"
3103         ;;
3104     openbsd|bitrig)
3105         disable symver
3106         SHFLAGS='-shared'
3107         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3108         SLIB_INSTALL_LINKS=
3109         oss_indev_extralibs="-lossaudio"
3110         oss_outdev_extralibs="-lossaudio"
3111         ;;
3112     dragonfly)
3113         disable symver
3114         ;;
3115     freebsd)
3116         ;;
3117     bsd/os)
3118         add_extralibs -lpoll -lgnugetopt
3119         ;;
3120     darwin)
3121         gas="gas-preprocessor.pl $cc"
3122         enabled ppc && add_asflags -force_cpusubtype_ALL
3123         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3124         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3125         add_ldflags -Wl,-dynamic,-search_paths_first
3126         SLIBSUF=".dylib"
3127         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3128         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3129         objformat="macho"
3130         enabled x86_64 && objformat="macho64"
3131         enabled_any pic shared ||
3132             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3133         ;;
3134     mingw32*)
3135         if test $target_os = "mingw32ce"; then
3136             disable network
3137         else
3138             target_os=mingw32
3139         fi
3140         LIBTARGET=i386
3141         if enabled x86_64; then
3142             LIBTARGET="i386:x86-64"
3143         elif enabled arm; then
3144             LIBTARGET=arm-wince
3145         fi
3146         check_ldflags -Wl,--nxcompat
3147         check_ldflags -Wl,--dynamicbase
3148         shlibdir_default="$bindir_default"
3149         SLIBPREF=""
3150         SLIBSUF=".dll"
3151         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3152         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3153         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3154         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3155         SLIB_INSTALL_LINKS=
3156         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3157         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3158         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3159         objformat="win32"
3160         dlltool="${cross_prefix}dlltool"
3161         ranlib=:
3162         enable dos_paths
3163         ;;
3164     win32|win64)
3165         if enabled shared; then
3166             # Link to the import library instead of the normal static library
3167             # for shared libs.
3168             LD_LIB='%.lib'
3169             # Cannot build shared and static libs at the same time with MSVC.
3170             disable static
3171         fi
3172         shlibdir_default="$bindir_default"
3173         SLIBPREF=""
3174         SLIBSUF=".dll"
3175         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3176         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3177         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3178         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3179         SLIB_INSTALL_LINKS=
3180         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3181         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3182         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3183         objformat="win32"
3184         ranlib=:
3185         enable dos_paths
3186         ;;
3187     cygwin*)
3188         target_os=cygwin
3189         shlibdir_default="$bindir_default"
3190         SLIBPREF="cyg"
3191         SLIBSUF=".dll"
3192         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3193         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3194         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3195         SLIB_INSTALL_LINKS=
3196         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3197         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3198         objformat="win32"
3199         enable dos_paths
3200         ;;
3201     *-dos|freedos|opendos)
3202         network_extralibs="-lsocket"
3203         objformat="coff"
3204         enable dos_paths
3205         add_cppflags -U__STRICT_ANSI__
3206         ;;
3207     linux)
3208         enable dv1394
3209         ;;
3210     irix*)
3211         target_os=irix
3212         ranlib="echo ignoring ranlib"
3213         ;;
3214     os/2*)
3215         ln_s="cp -f"
3216         objformat="aout"
3217         add_cppflags -D_GNU_SOURCE
3218         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3219         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3220         LIBSUF="_s.a"
3221         SLIBPREF=""
3222         SLIBSUF=".dll"
3223         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3224         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3225         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3226             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3227             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3228             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3229             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3230             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3231         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3232             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3233         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3234         enable dos_paths
3235         ;;
3236     gnu/kfreebsd)
3237         add_cppflags -D_BSD_SOURCE
3238         ;;
3239     gnu)
3240         ;;
3241     qnx)
3242         add_cppflags -D_QNX_SOURCE
3243         network_extralibs="-lsocket"
3244         ;;
3245     symbian)
3246         SLIBSUF=".dll"
3247         enable dos_paths
3248         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3249         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3250         add_ldflags -Wl,--target1-abs,--no-undefined \
3251                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3252                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3253         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3254                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3255                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3256         ;;
3257     osf1)
3258         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3259         ;;
3260     minix)
3261         ;;
3262     plan9)
3263         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3264                      -D_REENTRANT_SOURCE        \
3265                      -D_RESEARCH_SOURCE         \
3266                      -DFD_SETSIZE=96            \
3267                      -DHAVE_SOCK_OPTS
3268         add_compat strtod.o strtod=avpriv_strtod
3269         network_extralibs='-lbsd'
3270         exeobjs=compat/plan9/main.o
3271         disable avserver
3272         cp_f='cp'
3273         ;;
3274     none)
3275         ;;
3276     *)
3277         die "Unknown OS '$target_os'."
3278         ;;
3279 esac
3280
3281 # determine libc flavour
3282
3283 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3284 if check_cpp_condition features.h "defined __UCLIBC__"; then
3285     libc_type=uclibc
3286     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3287 elif check_cpp_condition features.h "defined __GLIBC__"; then
3288     libc_type=glibc
3289     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3290 # MinGW headers can be installed on Cygwin, so check for newlib first.
3291 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3292     libc_type=newlib
3293     add_cppflags -U__STRICT_ANSI__
3294 elif check_header _mingw.h; then
3295     libc_type=mingw
3296     check_cpp_condition _mingw.h \
3297         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3298             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3299         die "ERROR: MinGW runtime version must be >= 3.15."
3300     add_cppflags -U__STRICT_ANSI__
3301 elif check_func_headers stdlib.h _get_doserrno; then
3302     libc_type=msvcrt
3303     add_compat strtod.o strtod=avpriv_strtod
3304     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3305                                  _snprintf=avpriv_snprintf  \
3306                                  vsnprintf=avpriv_vsnprintf
3307     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3308     # 0x601 by default unless something else is set by the user.
3309     # This can easily lead to us detecting functions only present
3310     # in such new versions and producing binaries requiring windows 7.0.
3311     # Therefore explicitly set the default to XP unless the user has
3312     # set something else on the command line.
3313     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3314 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3315     libc_type=klibc
3316 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3317     libc_type=bionic
3318     add_compat strtod.o strtod=avpriv_strtod
3319 fi
3320
3321 test -n "$libc_type" && enable $libc_type
3322
3323 # hacks for compiler/libc/os combinations
3324
3325 if enabled_all tms470 glibc; then
3326     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3327     add_cppflags -D__USER_LABEL_PREFIX__=
3328     add_cppflags -D__builtin_memset=memset
3329     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3330     add_cflags   -pds=48    # incompatible redefinition of macro
3331 fi
3332
3333 if enabled_all ccc glibc; then
3334     add_ldflags -Wl,-z,now  # calls to libots crash without this
3335 fi
3336
3337 esc(){
3338     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3339 }
3340
3341 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3342
3343 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3344
3345 set_default $PATHS_LIST
3346 set_default nm
3347
3348 # we need to build at least one lib type
3349 if ! enabled_any static shared; then
3350     cat <<EOF
3351 At least one library type must be built.
3352 Specify --enable-static to build the static libraries or --enable-shared to
3353 build the shared libraries as well. To only build the shared libraries specify
3354 --disable-static in addition to --enable-shared.
3355 EOF
3356     exit 1;
3357 fi
3358
3359 die_license_disabled() {
3360     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3361 }
3362
3363 die_license_disabled gpl libcdio
3364 die_license_disabled gpl libx264
3365 die_license_disabled gpl libxavs
3366 die_license_disabled gpl libxvid
3367 die_license_disabled gpl x11grab
3368
3369 die_license_disabled nonfree libfaac
3370 die_license_disabled nonfree libfdk_aac
3371 die_license_disabled nonfree openssl
3372
3373 die_license_disabled version3 libopencore_amrnb
3374 die_license_disabled version3 libopencore_amrwb
3375 die_license_disabled version3 libvo_aacenc
3376 die_license_disabled version3 libvo_amrwbenc
3377
3378 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3379
3380 disabled optimizations || check_cflags -fomit-frame-pointer
3381
3382 enable_weak_pic() {
3383     disabled pic && return
3384     enable pic
3385     add_cppflags -DPIC
3386     case "$target_os" in
3387     mingw*|cygwin*)
3388         ;;
3389     *)
3390         add_cflags -fPIC
3391         ;;
3392     esac
3393     add_asflags  -fPIC
3394 }
3395
3396 enabled pic && enable_weak_pic
3397
3398 check_cc <<EOF || die "Symbol mangling check failed."
3399 int ff_extern;
3400 EOF
3401 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3402 extern_prefix=${sym%%ff_extern*}
3403
3404 check_cc <<EOF && enable_weak inline_asm
3405 void foo(void) { __asm__ volatile ("" ::); }
3406 EOF
3407
3408 _restrict=
3409 for restrict_keyword in restrict __restrict__ __restrict; do
3410     check_cc <<EOF && _restrict=$restrict_keyword && break
3411 void foo(char * $restrict_keyword p);
3412 EOF
3413 done
3414
3415 check_cc <<EOF && enable pragma_deprecated
3416 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3417 EOF
3418
3419 check_cc <<EOF && enable attribute_packed
3420 struct { int x; } __attribute__((packed)) x;
3421 EOF
3422
3423 check_cc <<EOF && enable attribute_may_alias
3424 union { int x; } __attribute__((may_alias)) x;
3425 EOF
3426
3427 check_cc <<EOF || die "endian test failed"
3428 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3429 EOF
3430 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3431
3432 check_inline_asm inline_asm_labels '"1:\n"'
3433
3434 if enabled alpha; then
3435
3436     check_cflags -mieee
3437
3438 elif enabled arm; then
3439
3440     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3441     enabled thumb && check_cflags -mthumb || check_cflags -marm
3442     nogas=die
3443
3444     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3445         enable vfp_args
3446     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3447         case "${cross_prefix:-$cc}" in
3448             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3449             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3450 __asm__ (".eabi_attribute 28, 1");
3451 int main(void) { return 0; }
3452 EOF
3453         esac
3454         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3455     fi
3456
3457     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3458     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3459     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3460     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3461     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3462     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3463
3464     [ $target_os = linux ] ||
3465         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3466             $ARCH_EXT_LIST_ARM
3467
3468     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3469     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3470
3471     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3472
3473 elif enabled mips; then
3474
3475     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3476
3477 elif enabled parisc; then
3478
3479     if enabled gcc; then
3480         case $($cc -dumpversion) in
3481             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3482         esac
3483     fi
3484
3485 elif enabled ppc; then
3486
3487     enable local_aligned_8 local_aligned_16
3488
3489     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3490     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3491     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3492     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3493
3494     # AltiVec flags: The FSF version of GCC differs from the Apple version
3495     if enabled altivec; then
3496         nogas=warn
3497         check_cflags -maltivec -mabi=altivec &&
3498         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3499         check_cflags -faltivec
3500
3501         # check if our compiler supports Motorola AltiVec C API
3502         check_cc <<EOF || disable altivec
3503 $inc_altivec_h
3504 int main(void) {
3505     vector signed int v1 = (vector signed int) { 0 };
3506     vector signed int v2 = (vector signed int) { 1 };
3507     v1 = vec_add(v1, v2);
3508     return 0;
3509 }
3510 EOF
3511
3512         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3513     fi
3514
3515 elif enabled sparc; then
3516
3517     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3518
3519 elif enabled x86; then
3520
3521     check_builtin rdtsc    intrin.h   "__rdtsc()"
3522     check_builtin mm_empty mmintrin.h "_mm_empty()"
3523
3524     enable local_aligned_8 local_aligned_16
3525
3526     # check whether EBP is available on x86
3527     # As 'i' is stored on the stack, this program will crash
3528     # if the base pointer is used to access it because the
3529     # base pointer is cleared in the inline assembly code.
3530     check_exec_crash <<EOF && enable ebp_available
3531 volatile int i=0;
3532 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3533 return i;
3534 EOF
3535
3536     # check whether EBX is available on x86
3537     check_inline_asm ebx_available '""::"b"(0)' &&
3538         check_inline_asm ebx_available '"":::"%ebx"'
3539
3540     # check whether xmm clobbers are supported
3541     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3542
3543     # check whether binutils is new enough to compile SSSE3/MMXEXT
3544     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3545     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3546
3547     if ! disabled_any asm mmx yasm; then
3548         if check_cmd $yasmexe --version; then
3549             enabled x86_64 && yasm_extra="-m amd64"
3550             yasm_debug="-g dwarf2"
3551         elif check_cmd nasm -v; then
3552             yasmexe=nasm
3553             yasm_debug="-g -F dwarf"
3554             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3555         fi
3556
3557         YASMFLAGS="-f $objformat $yasm_extra"
3558         enabled pic               && append YASMFLAGS "-DPIC"
3559         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3560         case "$objformat" in
3561             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3562         esac
3563
3564         check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3565             die "yasm not found, use --disable-yasm for a crippled build"
3566         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3567         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3568     fi
3569
3570     case "$cpu" in
3571         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3572             disable fast_clz
3573         ;;
3574     esac
3575
3576 fi
3577
3578 if enabled asm; then
3579     as=${gas:=$as}
3580     check_as <<EOF && enable gnu_as || \
3581         $nogas "GNU assembler not found, install gas-preprocessor"
3582 .macro m n
3583 \n: .int 0
3584 .endm
3585 m x
3586 EOF
3587 fi
3588
3589 check_ldflags -Wl,--as-needed
3590
3591 if check_func dlopen; then
3592     ldl=
3593 elif check_func dlopen -ldl; then
3594     ldl=-ldl
3595 fi
3596
3597 if ! disabled network; then
3598     check_type "sys/types.h sys/socket.h" socklen_t
3599     check_type netdb.h "struct addrinfo"
3600     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3601     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3602     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3603     check_type netinet/in.h "struct sockaddr_in6"
3604     check_type poll.h "struct pollfd"
3605     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3606     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3607     check_type netinet/sctp.h "struct sctp_event_subscribe"
3608     check_func getaddrinfo $network_extralibs
3609     check_func getservbyport $network_extralibs
3610     # Prefer arpa/inet.h over winsock2
3611     if check_header arpa/inet.h ; then
3612         check_func closesocket
3613     elif check_header winsock2.h ; then
3614         check_func_headers winsock2.h closesocket -lws2 &&
3615             network_extralibs="-lws2" ||
3616         { check_func_headers winsock2.h closesocket -lws2_32 &&
3617             network_extralibs="-lws2_32"; }
3618         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3619         check_type ws2tcpip.h socklen_t
3620         check_type ws2tcpip.h "struct addrinfo"
3621         check_type ws2tcpip.h "struct group_source_req"
3622         check_type ws2tcpip.h "struct ip_mreq_source"
3623         check_type ws2tcpip.h "struct ipv6_mreq"
3624         check_type winsock2.h "struct pollfd"
3625         check_type ws2tcpip.h "struct sockaddr_in6"
3626         check_type ws2tcpip.h "struct sockaddr_storage"
3627         check_struct winsock2.h "struct sockaddr" sa_len
3628     else
3629         disable network
3630     fi
3631 fi
3632
3633 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3634 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3635
3636 check_func  fcntl
3637 check_func  fork
3638 check_func_headers stdlib.h getenv
3639 check_func  gethrtime
3640 check_func  getopt
3641 check_func  getrusage
3642 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3643 check_func  gettimeofday
3644 check_func  inet_aton $network_extralibs
3645 check_func  isatty
3646 check_func  localtime_r
3647 check_func  ${malloc_prefix}memalign            && enable memalign
3648 check_func  mkstemp
3649 check_func  mmap
3650 check_func  mprotect
3651 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3652 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3653 check_func  setrlimit
3654 check_func  strerror_r
3655 check_func  strptime
3656 check_func  strtok_r
3657 check_func  sched_getaffinity
3658 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3659 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3660 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3661 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3662 check_func  sysconf
3663 check_func  sysctl
3664 check_func  usleep
3665 check_func_headers io.h setmode
3666 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3667 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3668 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3669 check_func_headers windows.h GetProcessAffinityMask
3670 check_func_headers windows.h GetProcessTimes
3671 check_func_headers windows.h GetSystemTimeAsFileTime
3672 check_func_headers windows.h MapViewOfFile
3673 check_func_headers windows.h SetConsoleTextAttribute
3674 check_func_headers windows.h Sleep
3675 check_func_headers windows.h VirtualAlloc
3676
3677 check_header direct.h
3678 check_header dlfcn.h
3679 check_header dxva.h
3680 check_header dxva2api.h
3681 check_header io.h
3682 check_header malloc.h
3683 check_header poll.h
3684 check_header sys/mman.h
3685 check_header sys/param.h
3686 check_header sys/resource.h
3687 check_header sys/select.h
3688 check_header sys/time.h
3689 check_header sys/un.h
3690 check_header unistd.h
3691 check_header vdpau/vdpau.h
3692 check_header vdpau/vdpau_x11.h
3693 check_header VideoDecodeAcceleration/VDADecoder.h
3694 check_header windows.h
3695 check_header X11/extensions/XvMClib.h
3696
3697 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3698 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3699
3700 if ! disabled w32threads && ! enabled pthreads; then
3701     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3702 fi
3703
3704 # check for some common methods of building with pthread support
3705 # do this before the optional library checks as some of them require pthreads
3706 if ! disabled pthreads && ! enabled w32threads; then
3707     enable pthreads
3708     if check_func pthread_create; then
3709         :
3710     elif check_func pthread_create -pthread; then
3711         add_cflags -pthread
3712         add_extralibs -pthread
3713     elif check_func pthread_create -pthreads; then
3714         add_cflags -pthreads
3715         add_extralibs -pthreads
3716     elif check_func pthread_create -lpthreadGC2; then
3717         add_extralibs -lpthreadGC2
3718     elif ! check_lib pthread.h pthread_create -lpthread; then
3719         disable pthreads
3720     fi
3721 fi
3722
3723 for thread in $THREADS_LIST; do
3724     if enabled $thread; then
3725         test -n "$thread_type" &&
3726             die "ERROR: Only one thread type must be selected." ||
3727             thread_type="$thread"
3728     fi
3729 done
3730
3731 enabled sync_val_compare_and_swap && enable atomics_gcc
3732 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
3733 enabled MemoryBarrier && enable atomics_win32
3734
3735 check_lib math.h sin -lm && LIBM="-lm"
3736 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3737
3738 atan2f_args=2
3739 ldexpf_args=2
3740 powf_args=2
3741
3742 for func in $MATH_FUNCS; do
3743     eval check_mathfunc $func \${${func}_args:-1}
3744 done
3745
3746 # these are off by default, so fail if requested and not available
3747 enabled avisynth          && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3748 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3749 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3750 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3751 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3752 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3753 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3754                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3755                                done || die "ERROR: libgsm not found"; }
3756 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3757 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3758 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3759 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3760 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3761 enabled libopenjpeg       && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3762 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3763 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3764 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3765 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3766 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
3767 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3768 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3769 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3770 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3771 enabled libvpx            && {
3772     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3773                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
3774     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3775                                     die "ERROR: libvpx encoder version must be >=0.9.6"; }
3776     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3777     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3778 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
3779 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
3780                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3781                                die "ERROR: libx264 version must be >= 0.118."; }
3782 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
3783 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
3784 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3785                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3786                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3787                                die "ERROR: openssl not found"; }
3788
3789 if enabled gnutls; then
3790     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3791     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3792 fi
3793
3794 # libdc1394 check
3795 if enabled libdc1394; then
3796     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3797         enable libdc1394_2; } ||
3798     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3799         enable libdc1394_1; } ||
3800     die "ERROR: No version of libdc1394 found "
3801 fi
3802
3803 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3804     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3805     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3806     enable sdl
3807 fi
3808
3809 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3810
3811 check_header linux/fb.h
3812 check_header linux/videodev2.h
3813 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3814
3815 check_header sys/videoio.h
3816
3817 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3818 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3819 # w32api 3.12 had it defined wrong
3820 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3821
3822 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3823 { check_header dev/bktr/ioctl_meteor.h &&
3824   check_header dev/bktr/ioctl_bt848.h; } ||
3825 { check_header machine/ioctl_meteor.h &&
3826   check_header machine/ioctl_bt848.h; } ||
3827 { check_header dev/video/meteor/ioctl_meteor.h &&
3828   check_header dev/video/bktr/ioctl_bt848.h; } ||
3829 check_header dev/ic/bt8xx.h
3830
3831 check_header sndio.h
3832 check_header sys/soundcard.h
3833 check_header soundcard.h
3834
3835 enabled_any alsa_indev alsa_outdev &&
3836     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3837
3838 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3839     check_func jack_port_get_latency_range -ljack
3840
3841 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3842
3843 if enabled libcdio; then
3844     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
3845     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3846 fi
3847
3848 enabled x11grab                                           &&
3849 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3850 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3851 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3852
3853 enabled vdpau &&
3854     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3855     disable vdpau
3856
3857 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3858
3859 # add some useful compiler flags if supported
3860 check_cflags -Wdeclaration-after-statement
3861 check_cflags -Wall
3862 check_cflags -Wno-parentheses
3863 check_cflags -Wno-switch
3864 check_cflags -Wno-format-zero-length
3865 check_cflags -Wdisabled-optimization
3866 check_cflags -Wpointer-arith
3867 check_cflags -Wredundant-decls
3868 check_cflags -Wno-pointer-sign
3869 check_cflags -Wcast-qual
3870 check_cflags -Wwrite-strings
3871 check_cflags -Wtype-limits
3872 check_cflags -Wundef
3873 check_cflags -Wmissing-prototypes
3874 check_cflags -Wstrict-prototypes
3875 enabled extra_warnings && check_cflags -Winline
3876
3877 # add some linker flags
3878 check_ldflags -Wl,--warn-common
3879 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3880 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3881
3882 enabled xmm_clobber_test &&
3883     check_ldflags -Wl,--wrap,avcodec_open2              \
3884                   -Wl,--wrap,avcodec_decode_audio4      \
3885                   -Wl,--wrap,avcodec_decode_video2      \
3886                   -Wl,--wrap,avcodec_decode_subtitle2   \
3887                   -Wl,--wrap,avcodec_encode_audio2      \
3888                   -Wl,--wrap,avcodec_encode_video       \
3889                   -Wl,--wrap,avcodec_encode_subtitle    \
3890                   -Wl,--wrap,sws_scale ||
3891     disable xmm_clobber_test
3892
3893 echo "X{};" > $TMPV
3894 if test_ldflags -Wl,--version-script,$TMPV; then
3895     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3896     check_cc <<EOF && enable symver_asm_label
3897 void ff_foo(void) __asm__ ("av_foo@VERSION");
3898 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3899 EOF
3900     check_cc <<EOF && enable symver_gnu_asm
3901 __asm__(".symver ff_foo,av_foo@VERSION");
3902 void ff_foo(void) {}
3903 EOF
3904 fi
3905
3906 if [ -z "$optflags" ]; then
3907     if enabled small; then
3908         optflags=$cflags_size
3909     elif enabled optimizations; then
3910         optflags=$cflags_speed
3911     else
3912         optflags=$cflags_noopt
3913     fi
3914 fi
3915
3916 check_optflags(){
3917     check_cflags "$@"
3918     enabled lto && check_ldflags "$@"
3919 }
3920
3921
3922 if enabled lto; then
3923     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
3924     check_cflags  -flto
3925     check_ldflags -flto $cpuflags
3926 fi
3927
3928 check_optflags $optflags
3929 check_optflags -fno-math-errno
3930 check_optflags -fno-signed-zeros
3931
3932 if enabled icc; then
3933     # Just warnings, no remarks
3934     check_cflags -w1
3935     # -wd: Disable following warnings
3936     # 144, 167, 556: -Wno-pointer-sign
3937     # 1292: attribute "foo" ignored
3938     # 1419: external declaration in primary source file
3939     # 10006: ignoring unknown option -fno-signed-zeros
3940     # 10148: ignoring unknown option -Wno-parentheses
3941     # 10156: ignoring option '-W'; no argument required
3942     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3943     # 11030: Warning unknown option --as-needed
3944     # 10156: ignoring option '-export'; no argument required
3945     check_ldflags -wd10156,11030
3946     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3947     enable ebp_available
3948     if enabled x86_32; then
3949         icc_version=$($cc -dumpversion)
3950         test ${icc_version%%.*} -ge 11 &&
3951             check_cflags -falign-stack=maintain-16-byte ||
3952             disable aligned_stack
3953     fi
3954 elif enabled ccc; then
3955     # disable some annoying warnings
3956     add_cflags -msg_disable bitnotint
3957     add_cflags -msg_disable mixfuncvoid
3958     add_cflags -msg_disable nonstandcast
3959     add_cflags -msg_disable unsupieee
3960 elif enabled gcc; then
3961     check_optflags -fno-tree-vectorize
3962     check_cflags -Werror=implicit-function-declaration
3963     check_cflags -Werror=missing-prototypes
3964     check_cflags -Werror=return-type
3965     check_cflags -Werror=declaration-after-statement
3966     check_cflags -Werror=vla
3967 elif enabled llvm_gcc; then
3968     check_cflags -mllvm -stack-alignment=16
3969 elif enabled clang; then
3970     check_cflags -mllvm -stack-alignment=16
3971     check_cflags -Qunused-arguments
3972     check_cflags -Werror=implicit-function-declaration
3973     check_cflags -Werror=missing-prototypes
3974     check_cflags -Werror=return-type
3975 elif enabled armcc; then
3976     # 2523: use of inline assembler is deprecated
3977     add_cflags -W${armcc_opt},--diag_suppress=2523
3978     add_cflags -W${armcc_opt},--diag_suppress=1207
3979     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3980     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3981     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3982     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3983 elif enabled tms470; then
3984     add_cflags -pds=824 -pds=837
3985 elif enabled pathscale; then
3986     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3987 elif enabled_any msvc icl; then
3988     enabled x86_32 && disable aligned_stack
3989     enabled_all x86_32 debug && add_cflags -Oy-
3990     enabled debug && add_ldflags -debug
3991     if enabled icl; then
3992         # basically -fstrict-aliasing that does not work (correctly) on icl 13.x
3993         check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
3994         # icl will pass the inline asm tests but inline asm is currently
3995         # not supported (build will fail)
3996         disable inline_asm
3997     fi
3998 fi
3999
4000 case $target_os in
4001     osf1)
4002         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4003     ;;
4004     plan9)
4005         add_cppflags -Dmain=plan9_main
4006     ;;
4007 esac
4008
4009 enabled_any $THREADS_LIST      && enable threads
4010 enabled_any $ATOMICS_LIST      && enable atomics_native
4011
4012 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4013
4014 check_deps $CONFIG_LIST       \
4015            $CONFIG_EXTRA      \
4016            $HAVE_LIST         \
4017            $ALL_COMPONENTS    \
4018
4019 ! enabled_any memalign posix_memalign aligned_malloc &&
4020     enabled_any $need_memalign && enable memalign_hack
4021
4022 echo "install prefix            $prefix"
4023 echo "source path               $source_path"
4024 echo "C compiler                $cc"
4025 echo "ARCH                      $arch ($cpu)"
4026 if test "$build_suffix" != ""; then
4027     echo "build suffix              $build_suffix"
4028 fi
4029 if test "$extra_version" != ""; then
4030     echo "version string suffix     $extra_version"
4031 fi
4032 echo "big-endian                ${bigendian-no}"
4033 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4034 if enabled x86; then
4035     echo "${yasmexe}                      ${yasm-no}"
4036     echo "MMX enabled               ${mmx-no}"
4037     echo "MMXEXT enabled            ${mmxext-no}"
4038     echo "3DNow! enabled            ${amd3dnow-no}"
4039     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4040     echo "SSE enabled               ${sse-no}"
4041     echo "SSSE3 enabled             ${ssse3-no}"
4042     echo "AVX enabled               ${avx-no}"
4043     echo "FMA4 enabled              ${fma4-no}"
4044     echo "i686 features enabled     ${i686-no}"
4045     echo "CMOV is fast              ${fast_cmov-no}"
4046     echo "EBX available             ${ebx_available-no}"
4047     echo "EBP available             ${ebp_available-no}"
4048 fi
4049 if enabled arm; then
4050     echo "ARMv5TE enabled           ${armv5te-no}"
4051     echo "ARMv6 enabled             ${armv6-no}"
4052     echo "ARMv6T2 enabled           ${armv6t2-no}"
4053     echo "VFP enabled               ${vfp-no}"
4054     echo "NEON enabled              ${neon-no}"
4055 fi
4056 if enabled ppc; then
4057     echo "AltiVec enabled           ${altivec-no}"
4058     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4059     echo "dcbzl available           ${dcbzl-no}"
4060 fi
4061 if enabled sparc; then
4062     echo "VIS enabled               ${vis-no}"
4063 fi
4064 echo "debug symbols             ${debug-no}"
4065 echo "optimize for size         ${small-no}"
4066 echo "optimizations             ${optimizations-no}"
4067 echo "static                    ${static-no}"
4068 echo "shared                    ${shared-no}"
4069 echo "new filter support        ${avfilter-no}"
4070 echo "network support           ${network-no}"
4071 echo "threading support         ${thread_type-no}"
4072 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4073 echo "SDL support               ${sdl-no}"
4074 test -n "$random_seed" &&
4075     echo "random seed               ${random_seed}"
4076 echo
4077
4078 echo "External libraries:"
4079 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4080 echo
4081
4082 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4083     echo "Enabled ${type}s:"
4084     eval list=\$$(toupper $type)_LIST
4085     print_enabled '_*' $list | print_3_columns
4086     echo
4087 done
4088
4089 license="LGPL version 2.1 or later"
4090 if enabled nonfree; then
4091     license="nonfree and unredistributable"
4092 elif enabled gplv3; then
4093     license="GPL version 3 or later"
4094 elif enabled lgplv3; then
4095     license="LGPL version 3 or later"
4096 elif enabled gpl; then
4097     license="GPL version 2 or later"
4098 fi
4099
4100 echo "License: $license"
4101
4102 echo "Creating config.mak and config.h..."
4103
4104 test -e Makefile || $ln_s "$source_path/Makefile" .
4105
4106 config_files="$TMPH config.mak"
4107
4108 cat > config.mak <<EOF
4109 # Automatically generated by configure - do not modify!
4110 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4111 prefix=$prefix
4112 LIBDIR=\$(DESTDIR)$libdir
4113 SHLIBDIR=\$(DESTDIR)$shlibdir
4114 INCDIR=\$(DESTDIR)$incdir
4115 BINDIR=\$(DESTDIR)$bindir
4116 DATADIR=\$(DESTDIR)$datadir
4117 MANDIR=\$(DESTDIR)$mandir
4118 SRC_PATH=$source_path
4119 CC_IDENT=$cc_ident
4120 ARCH=$arch
4121 CC=$cc
4122 AS=$as
4123 LD=$ld
4124 DEPCC=$dep_cc
4125 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4126 DEPAS=$as
4127 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4128 YASM=$yasmexe
4129 DEPYASM=$yasmexe
4130 AR=$ar
4131 ARFLAGS=$arflags
4132 AR_O=$ar_o
4133 RANLIB=$ranlib
4134 LN_S=$ln_s
4135 CPPFLAGS=$CPPFLAGS
4136 CFLAGS=$CFLAGS
4137 ASFLAGS=$ASFLAGS
4138 AS_C=$AS_C
4139 AS_O=$AS_O
4140 CC_C=$CC_C
4141 CC_E=$CC_E
4142 CC_O=$CC_O
4143 LD_O=$LD_O
4144 LD_LIB=$LD_LIB
4145 LD_PATH=$LD_PATH
4146 DLLTOOL=$dlltool
4147 LDFLAGS=$LDFLAGS
4148 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4149 YASMFLAGS=$YASMFLAGS
4150 BUILDSUF=$build_suffix
4151 FULLNAME=$FULLNAME
4152 LIBPREF=$LIBPREF
4153 LIBSUF=$LIBSUF
4154 LIBNAME=$LIBNAME
4155 SLIBPREF=$SLIBPREF
4156 SLIBSUF=$SLIBSUF
4157 EXESUF=$EXESUF
4158 EXTRA_VERSION=$extra_version
4159 CCDEP=$CCDEP
4160 CCDEP_FLAGS=$CCDEP_FLAGS
4161 ASDEP=$ASDEP
4162 ASDEP_FLAGS=$ASDEP_FLAGS
4163 CC_DEPFLAGS=$CC_DEPFLAGS
4164 AS_DEPFLAGS=$AS_DEPFLAGS
4165 HOSTCC=$host_cc
4166 HOSTLD=$host_ld
4167 HOSTCFLAGS=$host_cflags
4168 HOSTCPPFLAGS=$host_cppflags
4169 HOSTEXESUF=$HOSTEXESUF
4170 HOSTLDFLAGS=$host_ldflags
4171 HOSTLIBS=$host_libs
4172 DEPHOSTCC=$host_cc
4173 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4174 HOSTCCDEP=$HOSTCCDEP
4175 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4176 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4177 HOSTCC_C=$HOSTCC_C
4178 HOSTCC_O=$HOSTCC_O
4179 HOSTLD_O=$HOSTLD_O
4180 TARGET_EXEC=$target_exec $target_exec_args
4181 TARGET_PATH=$target_path
4182 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4183 LIBS-avplay=$sdl_libs
4184 CFLAGS-avplay=$sdl_cflags
4185 ZLIB=$($ldflags_filter -lz)
4186 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4187 EXTRALIBS=$extralibs
4188 COMPAT_OBJS=$compat_objs
4189 EXEOBJS=$exeobjs
4190 INSTALL=install
4191 LIBTARGET=${LIBTARGET}
4192 SLIBNAME=${SLIBNAME}
4193 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4194 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4195 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4196 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4197 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4198 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4199 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4200 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4201 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4202 EOF
4203
4204 get_version(){
4205     lcname=lib${1}
4206     name=$(toupper $lcname)
4207     file=$source_path/$lcname/version.h
4208     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4209     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4210     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4211     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4212     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4213 }
4214
4215 map 'get_version $v' $LIBRARY_LIST
4216
4217 cat > $TMPH <<EOF
4218 /* Automatically generated by configure - do not modify! */
4219 #ifndef LIBAV_CONFIG_H
4220 #define LIBAV_CONFIG_H
4221 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4222 #define LIBAV_LICENSE "$(c_escape $license)"
4223 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4224 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4225 #define restrict $_restrict
4226 #define EXTERN_PREFIX "${extern_prefix}"
4227 #define EXTERN_ASM ${extern_prefix}
4228 #define SLIBSUF "$SLIBSUF"
4229 EOF
4230
4231 test -n "$malloc_prefix" &&
4232     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4233
4234 if enabled yasm; then
4235     append config_files $TMPASM
4236     printf '' >$TMPASM
4237 fi
4238
4239 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4240
4241 print_config ARCH_   "$config_files" $ARCH_LIST
4242 print_config HAVE_   "$config_files" $HAVE_LIST
4243 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4244                                      $CONFIG_EXTRA      \
4245                                      $ALL_COMPONENTS    \
4246
4247 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4248
4249 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4250 cp_if_changed $TMPH config.h
4251 touch .config
4252
4253 enabled yasm && cp_if_changed $TMPASM config.asm
4254
4255 cat > $TMPH <<EOF
4256 /* Generated by ffconf */
4257 #ifndef AVUTIL_AVCONFIG_H
4258 #define AVUTIL_AVCONFIG_H
4259 EOF
4260
4261 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4262
4263 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4264
4265 cp_if_changed $TMPH libavutil/avconfig.h
4266
4267 test -n "$WARNINGS" && printf "\n$WARNINGS"
4268
4269 # build pkg-config files
4270
4271 pkgconfig_generate(){
4272     name=$1
4273     shortname=${name#lib}${build_suffix}
4274     comment=$2
4275     version=$3
4276     libs=$4
4277     requires=$5
4278     enabled ${name#lib} || return 0
4279     mkdir -p $name
4280     cat <<EOF > $name/$name.pc
4281 prefix=$prefix
4282 exec_prefix=\${prefix}
4283 libdir=$libdir
4284 includedir=$incdir
4285
4286 Name: $name
4287 Description: $comment
4288 Version: $version
4289 Requires: $(enabled shared || echo $requires)
4290 Requires.private: $(enabled shared && echo $requires)
4291 Conflicts:
4292 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4293 Libs.private: $(enabled shared && echo $libs)
4294 Cflags: -I\${includedir}
4295 EOF
4296     cat <<EOF > $name/$name-uninstalled.pc
4297 prefix=
4298 exec_prefix=
4299 libdir=\${pcfiledir}
4300 includedir=${source_path}
4301
4302 Name: $name
4303 Description: $comment
4304 Version: $version
4305 Requires: $requires
4306 Conflicts:
4307 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4308 Cflags: -I\${includedir}
4309 EOF
4310 }
4311
4312 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4313 enabled movie_filter    && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4314 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4315 enabled scale_filter    && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4316
4317 pkgconfig_generate libavutil     "Libav utility library"          "$LIBAVUTIL_VERSION"     "$LIBM"
4318 pkgconfig_generate libavcodec    "Libav codec library"            "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4319 pkgconfig_generate libavformat   "Libav container format library" "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4320 pkgconfig_generate libavdevice   "Libav device handling library"  "$LIBAVDEVICE_VERSION"   "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4321 pkgconfig_generate libavfilter   "Libav video filtering library"  "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4322 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4323 pkgconfig_generate libswscale    "Libav image rescaling library"  "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil = $LIBAVUTIL_VERSION"