Merge commit '3bcdf8dcb9891ffe49b6398d0e2c02f1712d8f00'
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg 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 FFMPEG, 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 FFmpeg."
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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --disable-network        disable network support [no]
134   --disable-dct            disable DCT code
135   --disable-dwt            disable DWT code
136   --disable-lsp            disable LSP code
137   --disable-lzo            disable LZO decoder code
138   --disable-mdct           disable MDCT code
139   --disable-rdft           disable RDFT code
140   --disable-fft            disable FFT code
141
142 Hardware accelerators:
143   --enable-dxva2           enable DXVA2 code
144   --enable-vaapi           enable VAAPI code
145   --enable-vda             enable VDA code
146   --enable-vdpau           enable VDPAU code
147
148 Individual component options:
149   --disable-everything     disable all components listed below
150   --disable-encoder=NAME   disable encoder NAME
151   --enable-encoder=NAME    enable encoder NAME
152   --disable-encoders       disable all encoders
153   --disable-decoder=NAME   disable decoder NAME
154   --enable-decoder=NAME    enable decoder NAME
155   --disable-decoders       disable all decoders
156   --disable-hwaccel=NAME   disable hwaccel NAME
157   --enable-hwaccel=NAME    enable hwaccel NAME
158   --disable-hwaccels       disable all hwaccels
159   --disable-muxer=NAME     disable muxer NAME
160   --enable-muxer=NAME      enable muxer NAME
161   --disable-muxers         disable all muxers
162   --disable-demuxer=NAME   disable demuxer NAME
163   --enable-demuxer=NAME    enable demuxer NAME
164   --disable-demuxers       disable all demuxers
165   --enable-parser=NAME     enable parser NAME
166   --disable-parser=NAME    disable parser NAME
167   --disable-parsers        disable all parsers
168   --enable-bsf=NAME        enable bitstream filter NAME
169   --disable-bsf=NAME       disable bitstream filter NAME
170   --disable-bsfs           disable all bitstream filters
171   --enable-protocol=NAME   enable protocol NAME
172   --disable-protocol=NAME  disable protocol NAME
173   --disable-protocols      disable all protocols
174   --enable-indev=NAME      enable input device NAME
175   --disable-indev=NAME     disable input device NAME
176   --disable-indevs         disable input devices
177   --enable-outdev=NAME     enable output device NAME
178   --disable-outdev=NAME    disable output device NAME
179   --disable-outdevs        disable output devices
180   --disable-devices        disable all devices
181   --enable-filter=NAME     enable filter NAME
182   --disable-filter=NAME    disable filter NAME
183   --disable-filters        disable all filters
184
185 External library support:
186   --enable-avisynth        enable reading of AVISynth script files [no]
187   --enable-bzlib           enable bzlib [autodetect]
188   --enable-fontconfig      enable fontconfig
189   --enable-frei0r          enable frei0r video filtering
190   --enable-gnutls          enable gnutls [no]
191   --enable-iconv           enable iconv [autodetect]
192   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
193   --enable-libass          enable libass subtitles rendering [no]
194   --enable-libbluray       enable BluRay reading using libbluray [no]
195   --enable-libcaca         enable textual display using libcaca
196   --enable-libcelt         enable CELT decoding via libcelt [no]
197   --enable-libcdio         enable audio CD grabbing with libcdio
198   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
199                            and libraw1394 [no]
200   --enable-libfaac         enable AAC encoding via libfaac [no]
201   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
202   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
203   --enable-libfreetype     enable libfreetype [no]
204   --enable-libgsm          enable GSM de/encoding via libgsm [no]
205   --enable-libiec61883     enable iec61883 via libiec61883 [no]
206   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
207   --enable-libmodplug      enable ModPlug via libmodplug [no]
208   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
209   --enable-libnut          enable NUT (de)muxing via libnut,
210                            native (de)muxer exists [no]
211   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
212   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
213   --enable-libopencv       enable video filtering via libopencv [no]
214   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
215   --enable-libopus         enable Opus decoding via libopus [no]
216   --enable-libpulse        enable Pulseaudio input via libpulse [no]
217   --enable-librtmp         enable RTMP[E] support via librtmp [no]
218   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
219   --enable-libsoxr         enable Include libsoxr resampling [no]
220   --enable-libspeex        enable Speex de/encoding via libspeex [no]
221   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
222   --enable-libtheora       enable Theora encoding via libtheora [no]
223   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
224   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
225   --enable-libv4l2         enable libv4l2/v4l-utils [no]
226   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
227   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
228   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
229                            native implementation exists [no]
230   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
231   --enable-libx264         enable H.264 encoding via x264 [no]
232   --enable-libxavs         enable AVS encoding via xavs [no]
233   --enable-libxvid         enable Xvid encoding via xvidcore,
234                            native MPEG-4/Xvid encoder exists [no]
235   --enable-openal          enable OpenAL 1.1 capture support [no]
236   --enable-openssl         enable openssl [no]
237   --enable-x11grab         enable X11 grabbing [no]
238   --enable-zlib            enable zlib [autodetect]
239
240 Advanced options (experts only):
241   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
242   --enable-cross-compile   assume a cross-compiler is used
243   --sysroot=PATH           root of cross-build tree
244   --sysinclude=PATH        location of cross-build system headers
245   --target-os=OS           compiler targets OS [$target_os]
246   --target-exec=CMD        command to run executables on target
247   --target-path=DIR        path to view of build directory on target
248   --toolchain=NAME         set tool defaults according to NAME
249   --nm=NM                  use nm tool NM [$nm_default]
250   --ar=AR                  use archive tool AR [$ar_default]
251   --as=AS                  use assembler AS [$as_default]
252   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
253   --cc=CC                  use C compiler CC [$cc_default]
254   --cxx=CXX                use C compiler CXX [$cxx_default]
255   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
256   --ld=LD                  use linker LD [$ld_default]
257   --host-cc=HOSTCC         use host C compiler HOSTCC
258   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
259   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
260   --host-ld=HOSTLD         use host linker HOSTLD
261   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
262   --host-libs=HLIBS        use libs HLIBS when linking for host
263   --host-os=OS             compiler host OS [$target_os]
264   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
265   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
266   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
267   --extra-libs=ELIBS       add ELIBS [$ELIBS]
268   --extra-version=STRING   version string suffix []
269   --optflags=OPTFLAGS      override optimization-related compiler flags
270   --build-suffix=SUFFIX    library name suffix []
271   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
272   --progs-suffix=SUFFIX    program name suffix []
273   --arch=ARCH              select architecture [$arch]
274   --cpu=CPU                select the minimum required CPU (affects
275                            instruction selection, may crash on older CPUs)
276   --enable-pic             build position-independent code
277   --enable-sram            allow use of on-chip SRAM
278   --enable-thumb           compile for Thumb instruction set
279   --disable-symver         disable symbol versioning
280   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
281   --disable-safe-bitstream-reader
282                            disable buffer boundary checking in bitreaders
283                            (faster, but may crash)
284   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
285   --enable-lto             use link-time optimization
286
287 Optimization options (experts only):
288   --disable-asm            disable all assembler optimizations
289   --disable-altivec        disable AltiVec optimizations
290   --disable-amd3dnow       disable 3DNow! optimizations
291   --disable-amd3dnowext    disable 3DNow! extended optimizations
292   --disable-mmx            disable MMX optimizations
293   --disable-mmxext         disable MMXEXT optimizations
294   --disable-sse            disable SSE optimizations
295   --disable-sse2           disable SSE2 optimizations
296   --disable-sse3           disable SSE3 optimizations
297   --disable-ssse3          disable SSSE3 optimizations
298   --disable-sse4           disable SSE4 optimizations
299   --disable-sse42          disable SSE4.2 optimizations
300   --disable-avx            disable AVX optimizations
301   --disable-fma4           disable FMA4 optimizations
302   --disable-armv5te        disable armv5te optimizations
303   --disable-armv6          disable armv6 optimizations
304   --disable-armv6t2        disable armv6t2 optimizations
305   --disable-vfp            disable VFP optimizations
306   --disable-neon           disable NEON optimizations
307   --disable-vis            disable VIS optimizations
308   --disable-inline-asm     disable use of inline assembler
309   --disable-yasm           disable use of yasm assembler
310   --disable-mips32r2       disable MIPS32R2 optimizations
311   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
312   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
313   --disable-mipsfpu        disable floating point MIPS optimizations
314   --disable-fast-unaligned consider unaligned accesses slow
315
316 Developer options (useful when working on FFmpeg itself):
317   --enable-coverage        build with test coverage instrumentation
318   --disable-debug          disable debugging symbols
319   --enable-debug=LEVEL     set the debug level [$debuglevel]
320   --disable-optimizations  disable compiler optimizations
321   --enable-extra-warnings  enable more compiler warnings
322   --disable-stripping      disable stripping of executables and shared libraries
323   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
324                            2 causes a slowdown at runtime.
325   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
326   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
327                            leaks and errors, using the specified valgrind binary.
328                            Cannot be combined with --target-exec
329   --enable-ftrapv          Trap arithmetic overflows
330   --samples=PATH           location of test samples for FATE, if not set use
331                            \$FATE_SAMPLES at make invocation time.
332   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
333                            should be used only for debugging purposes)
334   --enable-random          randomly enable/disable components
335   --disable-random
336   --enable-random=LIST     randomly enable/disable specific components or
337   --disable-random=LIST    component groups. LIST is a comma-separated list
338                            of NAME[:PROB] entries where NAME is a component
339                            (group) and PROB the probability associated with
340                            NAME (default 0.5).
341   --random-seed=VALUE      seed value for --enable/disable-random
342
343 NOTE: Object files are built at the place where configure is launched.
344 EOF
345   exit 0
346 }
347
348 quotes='""'
349
350 log(){
351     echo "$@" >> $logfile
352 }
353
354 log_file(){
355     log BEGIN $1
356     pr -n -t $1 >> $logfile
357     log END $1
358 }
359
360 echolog(){
361     log "$@"
362     echo "$@"
363 }
364
365 warn(){
366     log "WARNING: $*"
367     WARNINGS="${WARNINGS}WARNING: $*\n"
368 }
369
370 die(){
371     echolog "$@"
372     cat <<EOF
373
374 If you think configure made a mistake, make sure you are using the latest
375 version from Git.  If the latest version fails, report the problem to the
376 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
377 EOF
378     if disabled logging; then
379         cat <<EOF
380 Rerun configure with logging enabled (do not use --disable-logging), and
381 include the log this produces with your report.
382 EOF
383     else
384         cat <<EOF
385 Include the log file "$logfile" produced by configure as this will help
386 solving the problem.
387 EOF
388     fi
389     exit 1
390 }
391
392 # Avoid locale weirdness, besides we really just want to translate ASCII.
393 toupper(){
394     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
395 }
396
397 tolower(){
398     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
399 }
400
401 c_escape(){
402     echo "$*" | sed 's/["\\]/\\\0/g'
403 }
404
405 sh_quote(){
406     v=$(echo "$1" | sed "s/'/'\\\\''/g")
407     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
408     echo "$v"
409 }
410
411 cleanws(){
412     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
413 }
414
415 filter(){
416     pat=$1
417     shift
418     for v; do
419         eval "case $v in $pat) echo $v ;; esac"
420     done
421 }
422
423 filter_out(){
424     pat=$1
425     shift
426     for v; do
427         eval "case $v in $pat) ;; *) echo $v ;; esac"
428     done
429 }
430
431 map(){
432     m=$1
433     shift
434     for v; do eval $m; done
435 }
436
437 add_suffix(){
438     suffix=$1
439     shift
440     for v; do echo ${v}${suffix}; done
441 }
442
443 set_all(){
444     value=$1
445     shift
446     for var in $*; do
447         eval $var=$value
448     done
449 }
450
451 set_weak(){
452     value=$1
453     shift
454     for var; do
455         eval : \${$var:=$value}
456     done
457 }
458
459 sanitize_var_name(){
460     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
461 }
462
463 set_safe(){
464     var=$1
465     shift
466     eval $(sanitize_var_name "$var")='$*'
467 }
468
469 get_safe(){
470     eval echo \$$(sanitize_var_name "$1")
471 }
472
473 pushvar(){
474     for var in $*; do
475         eval level=\${${var}_level:=0}
476         eval ${var}_${level}="\$$var"
477         eval ${var}_level=$(($level+1))
478     done
479 }
480
481 popvar(){
482     for var in $*; do
483         eval level=\${${var}_level:-0}
484         test $level = 0 && continue
485         eval level=$(($level-1))
486         eval $var="\${${var}_${level}}"
487         eval ${var}_level=$level
488         eval unset ${var}_${level}
489     done
490 }
491
492 enable(){
493     set_all yes $*
494 }
495
496 disable(){
497     set_all no $*
498 }
499
500 enable_weak(){
501     set_weak yes $*
502 }
503
504 disable_weak(){
505     set_weak no $*
506 }
507
508 enable_safe(){
509     for var; do
510         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511     done
512 }
513
514 disable_safe(){
515     for var; do
516         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517     done
518 }
519
520 do_enable_deep(){
521     for var; do
522         enabled $var && continue
523         eval sel="\$${var}_select"
524         eval sgs="\$${var}_suggest"
525         pushvar var sgs
526         enable_deep $sel
527         popvar sgs
528         enable_deep_weak $sgs
529         popvar var
530     done
531 }
532
533 enable_deep(){
534     do_enable_deep $*
535     enable $*
536 }
537
538 enable_deep_weak(){
539     do_enable_deep $*
540     enable_weak $*
541 }
542
543 enabled(){
544     test "${1#!}" = "$1" && op== || op=!=
545     eval test "x\$${1#!}" $op "xyes"
546 }
547
548 disabled(){
549     test "${1#!}" = "$1" && op== || op=!=
550     eval test "x\$${1#!}" $op "xno"
551 }
552
553 enabled_all(){
554     for opt; do
555         enabled $opt || return 1
556     done
557 }
558
559 disabled_all(){
560     for opt; do
561         disabled $opt || return 1
562     done
563 }
564
565 enabled_any(){
566     for opt; do
567         enabled $opt && return 0
568     done
569 }
570
571 disabled_any(){
572     for opt; do
573         disabled $opt && return 0
574     done
575     return 1
576 }
577
578 set_default(){
579     for opt; do
580         eval : \${$opt:=\$${opt}_default}
581     done
582 }
583
584 is_in(){
585     value=$1
586     shift
587     for var in $*; do
588         [ $var = $value ] && return 0
589     done
590     return 1
591 }
592
593 do_check_deps(){
594     for cfg; do
595         cfg="${cfg#!}"
596         enabled ${cfg}_checking && die "Circular dependency for $cfg."
597         disabled ${cfg}_checking && continue
598         enable ${cfg}_checking
599         append allopts $cfg
600
601         eval dep_all="\$${cfg}_deps"
602         eval dep_any="\$${cfg}_deps_any"
603         eval dep_sel="\$${cfg}_select"
604         eval dep_sgs="\$${cfg}_suggest"
605         eval dep_ifa="\$${cfg}_if"
606         eval dep_ifn="\$${cfg}_if_any"
607
608         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
609         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
610         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
611
612         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
613         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
614         enabled_all  $dep_all || disable $cfg
615         enabled_any  $dep_any || disable $cfg
616         disabled_any $dep_sel && disable $cfg
617
618         if enabled $cfg; then
619             enable_deep $dep_sel
620             enable_deep_weak $dep_sgs
621         fi
622
623         disable ${cfg}_checking
624     done
625 }
626
627 check_deps(){
628     unset allopts
629
630     do_check_deps "$@"
631
632     for cfg in $allopts; do
633         enabled $cfg || continue
634         eval dep_extralibs="\$${cfg}_extralibs"
635         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
636     done
637 }
638
639 print_config(){
640     pfx=$1
641     files=$2
642     shift 2
643     map 'eval echo "$v \${$v:-no}"' "$@" |
644     awk "BEGIN { split(\"$files\", files) }
645         {
646             c = \"$pfx\" toupper(\$1);
647             v = \$2;
648             sub(/yes/, 1, v);
649             sub(/no/,  0, v);
650             for (f in files) {
651                 file = files[f];
652                 if (file ~ /\\.h\$/) {
653                     printf(\"#define %s %d\\n\", c, v) >>file;
654                 } else if (file ~ /\\.asm\$/) {
655                     printf(\"%%define %s %d\\n\", c, v) >>file;
656                 } else if (file ~ /\\.mak\$/) {
657                     n = -v ? \"\" : \"!\";
658                     printf(\"%s%s=yes\\n\", n, c) >>file;
659                 }
660             }
661         }"
662 }
663
664 print_enabled(){
665     suf=$1
666     shift
667     for v; do
668         enabled $v && printf "%s\n" ${v%$suf};
669     done
670 }
671
672 append(){
673     var=$1
674     shift
675     eval "$var=\"\$$var $*\""
676 }
677
678 prepend(){
679     var=$1
680     shift
681     eval "$var=\"$* \$$var\""
682 }
683
684 add_cppflags(){
685     append CPPFLAGS "$@"
686 }
687
688 add_cflags(){
689     append CFLAGS $($cflags_filter "$@")
690 }
691
692 add_cxxflags(){
693     append CXXFLAGS $($cflags_filter "$@")
694 }
695
696 add_asflags(){
697     append ASFLAGS $($asflags_filter "$@")
698 }
699
700 add_ldflags(){
701     append LDFLAGS $($ldflags_filter "$@")
702 }
703
704 add_extralibs(){
705     prepend extralibs $($ldflags_filter "$@")
706 }
707
708 add_host_cppflags(){
709     append host_cppflags "$@"
710 }
711
712 add_host_cflags(){
713     append host_cflags $($host_cflags_filter "$@")
714 }
715
716 add_host_ldflags(){
717     append host_ldflags $($host_ldflags_filter "$@")
718 }
719
720 add_compat(){
721     append compat_objs $1
722     shift
723     map 'add_cppflags -D$v' "$@"
724 }
725
726 check_cmd(){
727     log "$@"
728     "$@" >> $logfile 2>&1
729 }
730
731 cc_o(){
732     eval printf '%s\\n' $CC_O
733 }
734
735 cc_e(){
736     eval printf '%s\\n' $CC_E
737 }
738
739 check_cc(){
740     log check_cc "$@"
741     cat > $TMPC
742     log_file $TMPC
743     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
744 }
745
746 check_cxx(){
747     log check_cxx "$@"
748     cat > $TMPCPP
749     log_file $TMPCPP
750     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
751 }
752
753 check_cpp(){
754     log check_cpp "$@"
755     cat > $TMPC
756     log_file $TMPC
757     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
758 }
759
760 as_o(){
761     eval printf '%s\\n' $AS_O
762 }
763
764 check_as(){
765     log check_as "$@"
766     cat > $TMPS
767     log_file $TMPS
768     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
769 }
770
771 check_inline_asm(){
772     log check_inline_asm "$@"
773     name="$1"
774     code="$2"
775     shift 2
776     disable $name
777     check_cc "$@" <<EOF && enable $name
778 void foo(void){ __asm__ volatile($code); }
779 EOF
780 }
781
782 check_insn(){
783     log check_insn "$@"
784     check_inline_asm ${1}_inline "\"$2\""
785     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
786 }
787
788 check_yasm(){
789     log check_yasm "$@"
790     echo "$1" > $TMPS
791     log_file $TMPS
792     shift 1
793     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
794 }
795
796 ld_o(){
797     eval printf '%s\\n' $LD_O
798 }
799
800 check_ld(){
801     log check_ld "$@"
802     type=$1
803     shift 1
804     flags=$(filter_out '-l*|*.so' $@)
805     libs=$(filter '-l*|*.so' $@)
806     check_$type $($cflags_filter $flags) || return
807     flags=$($ldflags_filter $flags)
808     libs=$($ldflags_filter $libs)
809     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
810 }
811
812 check_code(){
813     log check_code "$@"
814     check=$1
815     headers=$2
816     code=$3
817     shift 3
818     {
819         for hdr in $headers; do
820             echo "#include <$hdr>"
821         done
822         echo "int main(void) { $code; return 0; }"
823     } | check_$check "$@"
824 }
825
826 check_cppflags(){
827     log check_cppflags "$@"
828     check_cc "$@" <<EOF && append CPPFLAGS "$@"
829 int x;
830 EOF
831 }
832
833 check_cflags(){
834     log check_cflags "$@"
835     set -- $($cflags_filter "$@")
836     check_cc "$@" <<EOF && append CFLAGS "$@"
837 int x;
838 EOF
839 }
840
841 check_cxxflags(){
842     log check_cxxflags "$@"
843     set -- $($cflags_filter "$@")
844     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
845 int x;
846 EOF
847 }
848
849 test_ldflags(){
850     log test_ldflags "$@"
851     check_ld "cc" "$@" <<EOF
852 int main(void){ return 0; }
853 EOF
854 }
855
856 check_ldflags(){
857     log check_ldflags "$@"
858     test_ldflags "$@" && add_ldflags "$@"
859 }
860
861 check_header(){
862     log check_header "$@"
863     header=$1
864     shift
865     disable_safe $header
866     check_cpp "$@" <<EOF && enable_safe $header
867 #include <$header>
868 int x;
869 EOF
870 }
871
872 check_func(){
873     log check_func "$@"
874     func=$1
875     shift
876     disable $func
877     check_ld "cc" "$@" <<EOF && enable $func
878 extern int $func();
879 int main(void){ $func(); }
880 EOF
881 }
882
883 check_mathfunc(){
884     log check_mathfunc "$@"
885     func=$1
886     narg=$2
887     shift 2
888     test $narg = 2 && args="f, g" || args="f"
889     disable $func
890     check_ld "cc" "$@" <<EOF && enable $func
891 #include <math.h>
892 float foo(float f, float g) { return $func($args); }
893 int main(void){ return (int) foo; }
894 EOF
895 }
896
897 check_func_headers(){
898     log check_func_headers "$@"
899     headers=$1
900     funcs=$2
901     shift 2
902     {
903         for hdr in $headers; do
904             echo "#include <$hdr>"
905         done
906         for func in $funcs; do
907             echo "long check_$func(void) { return (long) $func; }"
908         done
909         echo "int main(void) { return 0; }"
910     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
911 }
912
913 check_class_headers_cpp(){
914     log check_class_headers_cpp "$@"
915     headers=$1
916     classes=$2
917     shift 2
918     {
919         for hdr in $headers; do
920             echo "#include <$hdr>"
921         done
922         echo "int main(void) { "
923         i=1
924         for class in $classes; do
925             echo "$class obj$i;"
926             i=$(expr $i + 1)
927         done
928         echo "return 0; }"
929     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
930 }
931
932 check_cpp_condition(){
933     log check_cpp_condition "$@"
934     header=$1
935     condition=$2
936     shift 2
937     check_cpp "$@" <<EOF
938 #include <$header>
939 #if !($condition)
940 #error "unsatisfied condition: $condition"
941 #endif
942 EOF
943 }
944
945 check_lib(){
946     log check_lib "$@"
947     header="$1"
948     func="$2"
949     shift 2
950     check_header $header && check_func $func "$@" && add_extralibs "$@"
951 }
952
953 check_lib2(){
954     log check_lib2 "$@"
955     headers="$1"
956     funcs="$2"
957     shift 2
958     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
959 }
960
961 check_lib_cpp(){
962     log check_lib_cpp "$@"
963     headers="$1"
964     classes="$2"
965     shift 2
966     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
967 }
968
969 check_pkg_config(){
970     log check_pkg_config "$@"
971     pkg="$1"
972     headers="$2"
973     funcs="$3"
974     shift 3
975     $pkg_config --exists $pkg 2>/dev/null || return
976     pkg_cflags=$($pkg_config --cflags $pkg)
977     pkg_libs=$($pkg_config --libs $pkg)
978     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
979         set_safe ${pkg}_cflags $pkg_cflags   &&
980         set_safe ${pkg}_libs   $pkg_libs
981 }
982
983 check_exec(){
984     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
985 }
986
987 check_exec_crash(){
988     code=$(cat)
989
990     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
991     # are safe but may not be available everywhere.  Thus we use
992     # raise(SIGTERM) instead.  The check is run in a subshell so we
993     # can redirect the "Terminated" message from the shell.  SIGBUS
994     # is not defined by standard C so it is used conditionally.
995
996     (check_exec "$@") >> $logfile 2>&1 <<EOF
997 #include <signal.h>
998 static void sighandler(int sig){
999     raise(SIGTERM);
1000 }
1001 int func(void){
1002     $code
1003 }
1004 int (*func_ptr)(void) = func;
1005 int main(void){
1006     signal(SIGILL, sighandler);
1007     signal(SIGFPE, sighandler);
1008     signal(SIGSEGV, sighandler);
1009 #ifdef SIGBUS
1010     signal(SIGBUS, sighandler);
1011 #endif
1012     return func_ptr();
1013 }
1014 EOF
1015 }
1016
1017 check_type(){
1018     log check_type "$@"
1019     headers=$1
1020     type=$2
1021     shift 2
1022     disable_safe "$type"
1023     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1024 }
1025
1026 check_struct(){
1027     log check_struct "$@"
1028     headers=$1
1029     struct=$2
1030     member=$3
1031     shift 3
1032     disable_safe "${struct}_${member}"
1033     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1034         enable_safe "${struct}_${member}"
1035 }
1036
1037 check_builtin(){
1038     log check_builtin "$@"
1039     name=$1
1040     headers=$2
1041     builtin=$3
1042     shift 3
1043     disable "$name"
1044     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1045 }
1046
1047 require(){
1048     name="$1"
1049     header="$2"
1050     func="$3"
1051     shift 3
1052     check_lib $header $func "$@" || die "ERROR: $name not found"
1053 }
1054
1055 require2(){
1056     name="$1"
1057     headers="$2"
1058     func="$3"
1059     shift 3
1060     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1061 }
1062
1063 require_cpp(){
1064     name="$1"
1065     headers="$2"
1066     classes="$3"
1067     shift 3
1068     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1069 }
1070
1071 require_pkg_config(){
1072     pkg="$1"
1073     check_pkg_config "$@" || die "ERROR: $pkg not found"
1074     add_cflags    $(get_safe ${pkg}_cflags)
1075     add_extralibs $(get_safe ${pkg}_libs)
1076 }
1077
1078 hostcc_o(){
1079     eval printf '%s\\n' $HOSTCC_O
1080 }
1081
1082 check_host_cc(){
1083     log check_host_cc "$@"
1084     cat > $TMPC
1085     log_file $TMPC
1086     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1087 }
1088
1089 check_host_cppflags(){
1090     log check_host_cppflags "$@"
1091     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1092 int x;
1093 EOF
1094 }
1095
1096 check_host_cflags(){
1097     log check_host_cflags "$@"
1098     set -- $($host_cflags_filter "$@")
1099     check_host_cc "$@" <<EOF && append host_cflags "$@"
1100 int x;
1101 EOF
1102 }
1103
1104 apply(){
1105     file=$1
1106     shift
1107     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1108 }
1109
1110 cp_if_changed(){
1111     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1112     mkdir -p "$(dirname $2)"
1113     $cp_f "$1" "$2"
1114 }
1115
1116 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1117 # system-dependent things.
1118
1119 COMPONENT_LIST="
1120     bsfs
1121     decoders
1122     demuxers
1123     encoders
1124     filters
1125     hwaccels
1126     indevs
1127     muxers
1128     outdevs
1129     parsers
1130     protocols
1131 "
1132
1133 EXTERNAL_LIBRARY_LIST="
1134     avisynth
1135     bzlib
1136     crystalhd
1137     fontconfig
1138     frei0r
1139     gnutls
1140     iconv
1141     libaacplus
1142     libass
1143     libbluray
1144     libcaca
1145     libcdio
1146     libcelt
1147     libdc1394
1148     libfaac
1149     libfdk_aac
1150     libflite
1151     libfreetype
1152     libgsm
1153     libiec61883
1154     libilbc
1155     libmodplug
1156     libmp3lame
1157     libnut
1158     libopencore_amrnb
1159     libopencore_amrwb
1160     libopencv
1161     libopenjpeg
1162     libopus
1163     libpulse
1164     librtmp
1165     libschroedinger
1166     libsoxr
1167     libspeex
1168     libstagefright_h264
1169     libtheora
1170     libtwolame
1171     libutvideo
1172     libv4l2
1173     libvo_aacenc
1174     libvo_amrwbenc
1175     libvorbis
1176     libvpx
1177     libx264
1178     libxavs
1179     libxvid
1180     openal
1181     openssl
1182     x11grab
1183     zlib
1184 "
1185
1186 DOCUMENT_LIST="
1187     doc
1188     htmlpages
1189     manpages
1190     podpages
1191     txtpages
1192 "
1193
1194 HWACCEL_LIST="
1195     dxva2
1196     vaapi
1197     vda
1198     vdpau
1199 "
1200
1201 LIBRARY_LIST="
1202     avcodec
1203     avdevice
1204     avfilter
1205     avformat
1206     avresample
1207     avutil
1208     postproc
1209     swresample
1210     swscale
1211 "
1212
1213 PROGRAM_LIST="
1214     ffplay
1215     ffprobe
1216     ffserver
1217     ffmpeg
1218 "
1219
1220 CONFIG_LIST="
1221     $COMPONENT_LIST
1222     $DOCUMENT_LIST
1223     $EXTERNAL_LIBRARY_LIST
1224     $HWACCEL_LIST
1225     $LIBRARY_LIST
1226     $PROGRAM_LIST
1227     dct
1228     dwt
1229     fast_unaligned
1230     fft
1231     ftrapv
1232     gpl
1233     gray
1234     hardcoded_tables
1235     incompatible_fork_abi
1236     lsp
1237     lzo
1238     mdct
1239     memalign_hack
1240     memory_poisoning
1241     network
1242     nonfree
1243     pic
1244     rdft
1245     runtime_cpudetect
1246     safe_bitstream_reader
1247     shared
1248     small
1249     sram
1250     static
1251     swscale_alpha
1252     thumb
1253     version3
1254     xmm_clobber_test
1255 "
1256
1257 THREADS_LIST='
1258     pthreads
1259     w32threads
1260     os2threads
1261 '
1262
1263 ARCH_LIST='
1264     aarch64
1265     alpha
1266     arm
1267     avr32
1268     avr32_ap
1269     avr32_uc
1270     bfin
1271     ia64
1272     m68k
1273     mips
1274     mips64
1275     parisc
1276     ppc
1277     ppc64
1278     s390
1279     sh4
1280     sparc
1281     sparc64
1282     tilegx
1283     tilepro
1284     tomi
1285     x86
1286     x86_32
1287     x86_64
1288 '
1289
1290 ARCH_EXT_LIST_ARM='
1291     armv5te
1292     armv6
1293     armv6t2
1294     neon
1295     vfp
1296     vfpv3
1297 '
1298
1299 ARCH_EXT_LIST_X86='
1300     amd3dnow
1301     amd3dnowext
1302     avx
1303     fma4
1304     mmx
1305     mmxext
1306     sse
1307     sse2
1308     sse3
1309     sse4
1310     sse42
1311     ssse3
1312 '
1313
1314 ARCH_EXT_LIST="
1315     $ARCH_EXT_LIST_ARM
1316     $ARCH_EXT_LIST_X86
1317     altivec
1318     ppc4xx
1319     vis
1320     mipsfpu
1321     mips32r2
1322     mipsdspr1
1323     mipsdspr2
1324 "
1325
1326 HAVE_LIST_CMDLINE='
1327     inline_asm
1328     symver
1329     yasm
1330 '
1331
1332 HAVE_LIST_PUB='
1333     bigendian
1334     fast_unaligned
1335     incompatible_fork_abi
1336 '
1337
1338 MATH_FUNCS="
1339     atanf
1340     atan2f
1341     cbrt
1342     cbrtf
1343     cosf
1344     exp2
1345     exp2f
1346     expf
1347     isinf
1348     isnan
1349     ldexpf
1350     llrint
1351     llrintf
1352     log2
1353     log2f
1354     log10f
1355     lrint
1356     lrintf
1357     powf
1358     rint
1359     round
1360     roundf
1361     sinf
1362     trunc
1363     truncf
1364 "
1365
1366 HAVE_LIST="
1367     $ARCH_EXT_LIST
1368     $(add_suffix _external $ARCH_EXT_LIST)
1369     $(add_suffix _inline   $ARCH_EXT_LIST)
1370     $HAVE_LIST_CMDLINE
1371     $HAVE_LIST_PUB
1372     $THREADS_LIST
1373     $MATH_FUNCS
1374     access
1375     aligned_malloc
1376     aligned_stack
1377     alsa_asoundlib_h
1378     altivec_h
1379     arpa_inet_h
1380     asm_mod_q
1381     asm_mod_y
1382     asm_types_h
1383     attribute_may_alias
1384     attribute_packed
1385     cdio_paranoia_h
1386     cdio_paranoia_paranoia_h
1387     clock_gettime
1388     closesocket
1389     cmov
1390     CommandLineToArgvW
1391     cpunop
1392     CryptGenRandom
1393     dcbzl
1394     dev_bktr_ioctl_bt848_h
1395     dev_bktr_ioctl_meteor_h
1396     dev_ic_bt8xx_h
1397     dev_video_bktr_ioctl_bt848_h
1398     dev_video_meteor_ioctl_meteor_h
1399     direct_h
1400     dlfcn_h
1401     dlopen
1402     dos_paths
1403     dxva_h
1404     ebp_available
1405     ebx_available
1406     fast_64bit
1407     fast_clz
1408     fast_cmov
1409     fcntl
1410     fork
1411     getaddrinfo
1412     gethrtime
1413     getopt
1414     GetProcessAffinityMask
1415     GetProcessMemoryInfo
1416     GetProcessTimes
1417     GetSystemTimeAsFileTime
1418     getrusage
1419     getservbyport
1420     gettimeofday
1421     glob
1422     gnu_as
1423     gsm_h
1424     ibm_asm
1425     inet_aton
1426     io_h
1427     isatty
1428     jack_port_get_latency_range
1429     kbhit
1430     ldbrx
1431     libdc1394_1
1432     libdc1394_2
1433     local_aligned_16
1434     local_aligned_8
1435     localtime_r
1436     loongson
1437     lzo1x_999_compress
1438     machine_ioctl_bt848_h
1439     machine_ioctl_meteor_h
1440     machine_rw_barrier
1441     makeinfo
1442     malloc_h
1443     MapViewOfFile
1444     memalign
1445     MemoryBarrier
1446     mkstemp
1447     mm_empty
1448     mmap
1449     mprotect
1450     msvcrt
1451     nanosleep
1452     openjpeg_1_5_openjpeg_h
1453     PeekNamedPipe
1454     perl
1455     pod2man
1456     poll_h
1457     posix_memalign
1458     pthread_cancel
1459     rdtsc
1460     rsync_contimeout
1461     sched_getaffinity
1462     sdl
1463     SetConsoleTextAttribute
1464     setmode
1465     setrlimit
1466     Sleep
1467     sndio_h
1468     socklen_t
1469     soundcard_h
1470     strerror_r
1471     struct_addrinfo
1472     struct_group_source_req
1473     struct_ip_mreq_source
1474     struct_ipv6_mreq
1475     struct_pollfd
1476     struct_rusage_ru_maxrss
1477     struct_sctp_event_subscribe
1478     struct_sockaddr_in6
1479     struct_sockaddr_sa_len
1480     struct_sockaddr_storage
1481     struct_v4l2_frmivalenum_discrete
1482     symver_asm_label
1483     symver_gnu_asm
1484     sync_val_compare_and_swap
1485     sysconf
1486     sysctl
1487     sys_mman_h
1488     sys_param_h
1489     sys_resource_h
1490     sys_select_h
1491     sys_soundcard_h
1492     sys_time_h
1493     sys_videoio_h
1494     termios_h
1495     texi2html
1496     threads
1497     unistd_h
1498     usleep
1499     vfp_args
1500     VirtualAlloc
1501     windows_h
1502     winsock2_h
1503     xform_asm
1504     xmm_clobbers
1505 "
1506
1507 # options emitted with CONFIG_ prefix but not available on the command line
1508 CONFIG_EXTRA="
1509     aandcttables
1510     ac3dsp
1511     audio_frame_queue
1512     dsputil
1513     error_resilience
1514     gcrypt
1515     golomb
1516     gplv3
1517     h264chroma
1518     h264dsp
1519     h264pred
1520     h264qpel
1521     hpeldsp
1522     huffman
1523     lgplv3
1524     lpc
1525     mpegaudio
1526     mpegaudiodsp
1527     mpegvideo
1528     mpegvideoenc
1529     nettle
1530     rangecoder
1531     rtpdec
1532     rtpenc_chain
1533     sinewin
1534     videodsp
1535     vp3dsp
1536 "
1537
1538 CMDLINE_SELECT="
1539     $ARCH_EXT_LIST
1540     $CONFIG_LIST
1541     $HAVE_LIST_CMDLINE
1542     $THREADS_LIST
1543     asm
1544     coverage
1545     cross_compile
1546     debug
1547     extra_warnings
1548     logging
1549     lto
1550     optimizations
1551     stripping
1552 "
1553
1554 PATHS_LIST='
1555     bindir
1556     datadir
1557     incdir
1558     libdir
1559     mandir
1560     prefix
1561     shlibdir
1562 '
1563
1564 CMDLINE_SET="
1565     $PATHS_LIST
1566     ar
1567     arch
1568     as
1569     assert_level
1570     build_suffix
1571     cc
1572     cpu
1573     cross_prefix
1574     cxx
1575     dep_cc
1576     extra_version
1577     host_cc
1578     host_cflags
1579     host_ld
1580     host_ldflags
1581     host_libs
1582     host_os
1583     install
1584     ld
1585     logfile
1586     malloc_prefix
1587     nm
1588     optflags
1589     pkg_config
1590     progs_suffix
1591     random_seed
1592     samples
1593     strip
1594     sysinclude
1595     sysroot
1596     target_exec
1597     target_os
1598     target_path
1599     toolchain
1600     valgrind
1601     yasmexe
1602 "
1603
1604 CMDLINE_APPEND="
1605     extra_cflags
1606     extra_cxxflags
1607     host_cppflags
1608 "
1609
1610 # code dependency declarations
1611
1612 # architecture extensions
1613
1614 armv5te_deps="arm"
1615 armv6_deps="arm"
1616 armv6t2_deps="arm"
1617 neon_deps="arm"
1618 vfp_deps="arm"
1619 vfpv3_deps="vfp"
1620
1621 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1622
1623 mipsfpu_deps="mips"
1624 mips32r2_deps="mips"
1625 mipsdspr1_deps="mips"
1626 mipsdspr2_deps="mips"
1627
1628 altivec_deps="ppc"
1629 ppc4xx_deps="ppc"
1630
1631 vis_deps="sparc"
1632
1633 x86_64_suggest="cmov fast_cmov"
1634
1635 amd3dnow_deps="mmx"
1636 amd3dnowext_deps="amd3dnow"
1637 mmx_deps="x86"
1638 mmxext_deps="mmx"
1639 sse_deps="mmxext"
1640 sse2_deps="sse"
1641 sse3_deps="sse2"
1642 ssse3_deps="sse3"
1643 sse4_deps="ssse3"
1644 sse42_deps="sse4"
1645 avx_deps="sse42"
1646 fma4_deps="avx"
1647
1648 mmx_external_deps="yasm"
1649 mmx_inline_deps="inline_asm"
1650 mmx_suggest="mmx_external mmx_inline"
1651
1652 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1653     eval dep=\$${ext}_deps
1654     eval ${ext}_external_deps='"${dep}_external"'
1655     eval ${ext}_inline_deps='"${dep}_inline"'
1656     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1657 done
1658
1659 aligned_stack_if_any="ppc x86"
1660 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1661 fast_clz_if_any="alpha avr32 mips ppc x86"
1662 fast_unaligned_if_any="ppc x86"
1663
1664 inline_asm_deps="!tms470"
1665 need_memalign="altivec neon sse"
1666
1667 symver_if_any="symver_asm_label symver_gnu_asm"
1668
1669 log2_deps="!msvcrt"
1670
1671 # subsystems
1672 dct_select="rdft"
1673 error_resilience_select="dsputil"
1674 mdct_select="fft"
1675 rdft_select="fft"
1676 mpegaudio_select="mpegaudiodsp"
1677 mpegaudiodsp_select="dct"
1678 mpegvideo_select="dsputil error_resilience h264chroma hpeldsp videodsp"
1679 mpegvideoenc_select="mpegvideo"
1680
1681 # decoders / encoders
1682 aac_decoder_select="mdct sinewin"
1683 aac_encoder_select="audio_frame_queue mdct sinewin"
1684 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1685 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1686 ac3_encoder_select="mdct ac3dsp dsputil"
1687 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1688 alac_encoder_select="lpc"
1689 als_decoder_select="dsputil"
1690 amrnb_decoder_select="lsp"
1691 amrwb_decoder_select="lsp"
1692 amv_encoder_select="aandcttables"
1693 ape_decoder_select="dsputil"
1694 asv_decoder_select="dsputil"
1695 atrac1_decoder_select="mdct sinewin"
1696 atrac3_decoder_select="mdct"
1697 bink_decoder_select="dsputil hpeldsp"
1698 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1699 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1700 cavs_decoder_select="dsputil golomb h264chroma mpegvideo videodsp"
1701 cllc_decoder_select="dsputil"
1702 comfortnoise_encoder_select="lpc"
1703 cook_decoder_select="dsputil mdct sinewin"
1704 cscd_decoder_select="lzo"
1705 cscd_decoder_suggest="zlib"
1706 dca_decoder_select="mdct"
1707 dirac_decoder_select="dsputil dwt golomb videodsp"
1708 dnxhd_decoder_select="dsputil"
1709 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1710 dv_decoder_select="dsputil"
1711 dxa_decoder_select="zlib"
1712 eac3_decoder_select="ac3_decoder"
1713 eac3_encoder_select="ac3_encoder"
1714 eamad_decoder_select="aandcttables dsputil mpegvideo"
1715 eatgq_decoder_select="aandcttables"
1716 eatqi_decoder_select="aandcttables mpegvideo"
1717 exr_decoder_select="zlib"
1718 ffv1_decoder_select="dsputil golomb rangecoder"
1719 ffv1_encoder_select="rangecoder"
1720 ffvhuff_encoder_select="huffman"
1721 flac_decoder_select="golomb"
1722 flac_encoder_select="dsputil golomb lpc"
1723 flashsv_decoder_select="zlib"
1724 flashsv_encoder_select="zlib"
1725 flashsv2_encoder_select="zlib"
1726 flashsv2_decoder_select="zlib"
1727 flv_decoder_select="h263_decoder"
1728 flv_encoder_select="h263_encoder"
1729 fourxm_decoder_select="dsputil"
1730 fraps_decoder_select="dsputil huffman"
1731 g729_decoder_select="dsputil"
1732 h261_decoder_select="error_resilience mpegvideo"
1733 h261_encoder_select="aandcttables mpegvideoenc"
1734 h263_decoder_select="error_resilience h263_parser mpegvideo"
1735 h263_encoder_select="aandcttables mpegvideoenc"
1736 h263i_decoder_select="h263_decoder"
1737 h263p_encoder_select="h263_encoder"
1738 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1739 huffyuv_decoder_select="dsputil"
1740 huffyuv_encoder_select="huffman"
1741 iac_decoder_select="fft mdct sinewin"
1742 imc_decoder_select="dsputil fft mdct sinewin"
1743 indeo3_decoder_select="hpeldsp"
1744 interplay_video_decoder_select="hpeldsp"
1745 jpegls_decoder_select="golomb"
1746 jpegls_encoder_select="golomb"
1747 jv_decoder_select="dsputil"
1748 lagarith_decoder_select="dsputil"
1749 ljpeg_encoder_select="aandcttables mpegvideoenc"
1750 loco_decoder_select="golomb"
1751 mdec_decoder_select="dsputil error_resilience mpegvideo"
1752 mimic_decoder_select="dsputil hpeldsp"
1753 mjpeg_decoder_select="dsputil hpeldsp"
1754 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1755 mlp_decoder_select="dsputil mlp_parser"
1756 motionpixels_decoder_select="dsputil"
1757 mp1_decoder_select="mpegaudio"
1758 mp1float_decoder_select="mpegaudio"
1759 mp2_decoder_select="mpegaudio"
1760 mp2float_decoder_select="mpegaudio"
1761 mp3_decoder_select="mpegaudio"
1762 mp3adu_decoder_select="mpegaudio"
1763 mp3adufloat_decoder_select="mpegaudio"
1764 mp3float_decoder_select="mpegaudio"
1765 mp3on4_decoder_select="mpegaudio"
1766 mp3on4float_decoder_select="mpegaudio"
1767 mpc7_decoder_select="dsputil mpegaudiodsp"
1768 mpc8_decoder_select="dsputil mpegaudiodsp"
1769 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1770 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1771 mpeg1video_decoder_select="error_resilience mpegvideo"
1772 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1773 mpeg2video_decoder_select="error_resilience mpegvideo"
1774 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1775 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1776 mpeg4_encoder_select="h263_encoder"
1777 msmpeg4v1_decoder_select="h263_decoder"
1778 msmpeg4v1_encoder_select="h263_encoder"
1779 msmpeg4v2_decoder_select="h263_decoder"
1780 msmpeg4v2_encoder_select="h263_encoder"
1781 msmpeg4v3_decoder_select="h263_decoder"
1782 msmpeg4v3_encoder_select="h263_encoder"
1783 mss2_decoder_select="error_resilience vc1_decoder"
1784 nellymoser_decoder_select="mdct sinewin"
1785 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1786 nuv_decoder_select="dsputil lzo"
1787 png_decoder_select="zlib"
1788 png_encoder_select="dsputil zlib"
1789 prores_decoder_select="dsputil"
1790 qcelp_decoder_select="lsp"
1791 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1792 ra_144_encoder_select="audio_frame_queue lpc"
1793 ralf_decoder_select="golomb"
1794 rtjpeg_decoder_select="dsputil"
1795 rv10_decoder_select="error_resilience h263_decoder"
1796 rv10_encoder_select="h263_encoder"
1797 rv20_decoder_select="error_resilience h263_decoder"
1798 rv20_encoder_select="h263_encoder"
1799 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1800 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1801 shorten_decoder_select="golomb"
1802 sipr_decoder_select="lsp"
1803 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1804 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp error_resilience mpegvideoenc rangecoder"
1805 sonic_decoder_select="golomb"
1806 sonic_encoder_select="golomb"
1807 sonic_ls_encoder_select="golomb"
1808 svq1_decoder_select="hpeldsp"
1809 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1810 svq3_decoder_select="dsputil error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1811 svq3_decoder_suggest="zlib"
1812 tak_decoder_select="dsputil"
1813 theora_decoder_select="vp3_decoder"
1814 tiff_decoder_suggest="zlib"
1815 tiff_encoder_suggest="zlib"
1816 truehd_decoder_select="mlp_parser"
1817 truemotion2_decoder_select="dsputil"
1818 tscc_decoder_select="zlib"
1819 twinvq_decoder_select="mdct lsp sinewin"
1820 utvideo_decoder_select="dsputil"
1821 utvideo_encoder_select="huffman"
1822 vble_decoder_select="dsputil"
1823 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1824 vc1image_decoder_select="vc1_decoder"
1825 vorbis_decoder_select="mdct"
1826 vorbis_encoder_select="mdct"
1827 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1828 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1829 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1830 vp6a_decoder_select="vp6_decoder"
1831 vp6f_decoder_select="vp6_decoder"
1832 vp8_decoder_select="h264pred videodsp"
1833 wmapro_decoder_select="mdct sinewin"
1834 wmav1_decoder_select="mdct sinewin"
1835 wmav1_encoder_select="mdct sinewin"
1836 wmav2_decoder_select="mdct sinewin"
1837 wmav2_encoder_select="mdct sinewin"
1838 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1839 wmv1_decoder_select="h263_decoder"
1840 wmv1_encoder_select="h263_encoder"
1841 wmv2_decoder_select="h263_decoder videodsp"
1842 wmv2_encoder_select="h263_encoder"
1843 wmv3_decoder_select="vc1_decoder"
1844 wmv3image_decoder_select="wmv3_decoder"
1845 zerocodec_decoder_select="zlib"
1846 zlib_decoder_select="zlib"
1847 zlib_encoder_select="zlib"
1848 zmbv_decoder_select="zlib"
1849 zmbv_encoder_select="zlib"
1850
1851 # hardware accelerators
1852 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1853 dxva2_deps="dxva2api_h"
1854 vaapi_deps="va_va_h"
1855 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1856 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1857 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1858
1859 h263_vaapi_hwaccel_deps="vaapi"
1860 h263_vaapi_hwaccel_select="h263_decoder"
1861 h263_vdpau_hwaccel_deps="vdpau"
1862 h263_vdpau_hwaccel_select="h263_decoder"
1863 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1864 h264_dxva2_hwaccel_deps="dxva2"
1865 h264_dxva2_hwaccel_select="h264_decoder"
1866 h264_vaapi_hwaccel_deps="vaapi"
1867 h264_vaapi_hwaccel_select="h264_decoder"
1868 h264_vda_decoder_deps="vda"
1869 h264_vda_decoder_select="h264_decoder"
1870 h264_vda_hwaccel_deps="vda"
1871 h264_vda_hwaccel_select="h264_decoder"
1872 h264_vdpau_decoder_deps="vdpau"
1873 h264_vdpau_decoder_select="h264_decoder"
1874 h264_vdpau_hwaccel_deps="vdpau"
1875 h264_vdpau_hwaccel_select="h264_decoder"
1876 mpeg_vdpau_decoder_deps="vdpau"
1877 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1878 mpeg1_vdpau_decoder_deps="vdpau"
1879 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1880 mpeg1_vdpau_hwaccel_deps="vdpau"
1881 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1882 mpeg2_crystalhd_decoder_select="crystalhd"
1883 mpeg2_dxva2_hwaccel_deps="dxva2"
1884 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1885 mpeg2_vaapi_hwaccel_deps="vaapi"
1886 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1887 mpeg2_vdpau_hwaccel_deps="vdpau"
1888 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1889 mpeg4_crystalhd_decoder_select="crystalhd"
1890 mpeg4_vaapi_hwaccel_deps="vaapi"
1891 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1892 mpeg4_vdpau_decoder_deps="vdpau"
1893 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1894 mpeg4_vdpau_hwaccel_deps="vdpau"
1895 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1896 msmpeg4_crystalhd_decoder_select="crystalhd"
1897 vc1_crystalhd_decoder_select="crystalhd"
1898 vc1_dxva2_hwaccel_deps="dxva2"
1899 vc1_dxva2_hwaccel_select="vc1_decoder"
1900 vc1_vaapi_hwaccel_deps="vaapi"
1901 vc1_vaapi_hwaccel_select="vc1_decoder"
1902 vc1_vdpau_decoder_deps="vdpau"
1903 vc1_vdpau_decoder_select="vc1_decoder"
1904 vc1_vdpau_hwaccel_deps="vdpau"
1905 vc1_vdpau_hwaccel_select="vc1_decoder"
1906 wmv3_crystalhd_decoder_select="crystalhd"
1907 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1908 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1909 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1910 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1911
1912 # parsers
1913 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1914 mpeg4video_parser_select="error_resilience mpegvideo"
1915 mpegvideo_parser_select="error_resilience mpegvideo"
1916 vc1_parser_select="mpegvideo"
1917
1918 # external libraries
1919 libaacplus_encoder_deps="libaacplus"
1920 libcelt_decoder_deps="libcelt"
1921 libfaac_encoder_deps="libfaac"
1922 libfaac_encoder_select="audio_frame_queue"
1923 libfdk_aac_encoder_deps="libfdk_aac"
1924 libfdk_aac_encoder_select="audio_frame_queue"
1925 libgsm_decoder_deps="libgsm"
1926 libgsm_encoder_deps="libgsm"
1927 libgsm_ms_decoder_deps="libgsm"
1928 libgsm_ms_encoder_deps="libgsm"
1929 libilbc_decoder_deps="libilbc"
1930 libilbc_encoder_deps="libilbc"
1931 libmodplug_demuxer_deps="libmodplug"
1932 libmp3lame_encoder_deps="libmp3lame"
1933 libmp3lame_encoder_select="audio_frame_queue"
1934 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1935 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1936 libopencore_amrnb_encoder_select="audio_frame_queue"
1937 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1938 libopenjpeg_decoder_deps="libopenjpeg"
1939 libopenjpeg_encoder_deps="libopenjpeg"
1940 libopus_decoder_deps="libopus"
1941 libopus_encoder_deps="libopus"
1942 libopus_encoder_select="audio_frame_queue"
1943 libschroedinger_decoder_deps="libschroedinger"
1944 libschroedinger_encoder_deps="libschroedinger"
1945 libspeex_decoder_deps="libspeex"
1946 libspeex_encoder_deps="libspeex"
1947 libspeex_encoder_select="audio_frame_queue"
1948 libstagefright_h264_decoder_deps="libstagefright_h264"
1949 libtheora_encoder_deps="libtheora"
1950 libtwolame_encoder_deps="libtwolame"
1951 libvo_aacenc_encoder_deps="libvo_aacenc"
1952 libvo_aacenc_encoder_select="audio_frame_queue"
1953 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1954 libvorbis_decoder_deps="libvorbis"
1955 libvorbis_encoder_deps="libvorbis"
1956 libvorbis_encoder_select="audio_frame_queue"
1957 libvpx_vp8_decoder_deps="libvpx"
1958 libvpx_vp8_encoder_deps="libvpx"
1959 libvpx_vp9_decoder_deps="libvpx"
1960 libvpx_vp9_encoder_deps="libvpx"
1961 libx264_encoder_deps="libx264"
1962 libx264rgb_encoder_deps="libx264"
1963 libxavs_encoder_deps="libxavs"
1964 libxvid_encoder_deps="libxvid"
1965 libutvideo_decoder_deps="libutvideo"
1966 libutvideo_encoder_deps="libutvideo"
1967
1968 # demuxers / muxers
1969 ac3_demuxer_select="ac3_parser"
1970 asf_stream_muxer_select="asf_muxer"
1971 avisynth_demuxer_deps="avisynth"
1972 dirac_demuxer_select="dirac_parser"
1973 dts_demuxer_select="dca_parser"
1974 dtshd_demuxer_select="dca_parser"
1975 eac3_demuxer_select="ac3_parser"
1976 f4v_muxer_select="mov_muxer"
1977 flac_demuxer_select="flac_parser"
1978 ipod_muxer_select="mov_muxer"
1979 ismv_muxer_select="mov_muxer"
1980 libnut_demuxer_deps="libnut"
1981 libnut_muxer_deps="libnut"
1982 matroska_audio_muxer_select="matroska_muxer"
1983 matroska_demuxer_suggest="bzlib lzo zlib"
1984 mov_demuxer_suggest="zlib"
1985 mov_muxer_select="rtpenc_chain"
1986 mp3_demuxer_select="mpegaudio_parser"
1987 mp4_muxer_select="mov_muxer"
1988 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1989 mpegtsraw_demuxer_select="mpegts_demuxer"
1990 mxf_d10_muxer_select="mxf_muxer"
1991 ogg_demuxer_select="golomb"
1992 psp_muxer_select="mov_muxer"
1993 rtp_demuxer_select="sdp_demuxer"
1994 rtp_muxer_select="mpegvideo"
1995 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1996 rtsp_demuxer_select="http_protocol rtpdec"
1997 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1998 sap_demuxer_select="sdp_demuxer"
1999 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2000 sdp_demuxer_select="rtpdec"
2001 smoothstreaming_muxer_select="ismv_muxer"
2002 spdif_muxer_select="aac_parser"
2003 tak_demuxer_select="tak_parser"
2004 tg2_muxer_select="mov_muxer"
2005 tgp_muxer_select="mov_muxer"
2006 vobsub_demuxer_select="mpegps_demuxer"
2007 w64_demuxer_deps="wav_demuxer"
2008 w64_muxer_deps="wav_muxer"
2009
2010 # indevs / outdevs
2011 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2012 alsa_outdev_deps="alsa_asoundlib_h"
2013 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2014 caca_outdev_deps="libcaca"
2015 dshow_indev_deps="IBaseFilter"
2016 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2017 dv1394_indev_deps="dv1394 dv_demuxer"
2018 fbdev_indev_deps="linux_fb_h"
2019 iec61883_indev_deps="libiec61883"
2020 jack_indev_deps="jack_jack_h sem_timedwait"
2021 lavfi_indev_deps="avfilter"
2022 libcdio_indev_deps="libcdio"
2023 libdc1394_indev_deps="libdc1394"
2024 libv4l2_indev_deps="libv4l2"
2025 openal_indev_deps="openal"
2026 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2027 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2028 pulse_indev_deps="libpulse"
2029 sdl_outdev_deps="sdl"
2030 sndio_indev_deps="sndio_h"
2031 sndio_outdev_deps="sndio_h"
2032 v4l_indev_deps="linux_videodev_h"
2033 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2034 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2035 vfwcap_indev_extralibs="-lavicap32"
2036 x11grab_indev_deps="x11grab"
2037
2038 # protocols
2039 bluray_protocol_deps="libbluray"
2040 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2041 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2042 ffrtmpcrypt_protocol_select="tcp_protocol"
2043 ffrtmphttp_protocol_deps="!librtmp_protocol"
2044 ffrtmphttp_protocol_select="http_protocol"
2045 gopher_protocol_select="network"
2046 httpproxy_protocol_select="tcp_protocol"
2047 http_protocol_select="tcp_protocol"
2048 https_protocol_select="tls_protocol"
2049 librtmp_protocol_deps="librtmp"
2050 librtmpe_protocol_deps="librtmp"
2051 librtmps_protocol_deps="librtmp"
2052 librtmpt_protocol_deps="librtmp"
2053 librtmpte_protocol_deps="librtmp"
2054 mmsh_protocol_select="http_protocol"
2055 mmst_protocol_select="network"
2056 rtmp_protocol_deps="!librtmp_protocol"
2057 rtmp_protocol_select="tcp_protocol"
2058 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2059 rtmps_protocol_deps="!librtmp_protocol"
2060 rtmps_protocol_select="tls_protocol"
2061 rtmpt_protocol_select="ffrtmphttp_protocol"
2062 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2063 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2064 rtp_protocol_select="udp_protocol"
2065 sctp_protocol_deps="struct_sctp_event_subscribe"
2066 sctp_protocol_select="network"
2067 srtp_protocol_select="rtp_protocol"
2068 tcp_protocol_select="network"
2069 tls_protocol_deps_any="openssl gnutls"
2070 tls_protocol_select="tcp_protocol"
2071 udp_protocol_select="network"
2072
2073 # filters
2074 aconvert_filter_deps="swresample"
2075 amovie_filter_deps="avcodec avformat"
2076 aresample_filter_deps="swresample"
2077 ass_filter_deps="libass"
2078 asyncts_filter_deps="avresample"
2079 atempo_filter_deps="avcodec rdft"
2080 blackframe_filter_deps="gpl"
2081 boxblur_filter_deps="gpl"
2082 colormatrix_filter_deps="gpl"
2083 cropdetect_filter_deps="gpl"
2084 decimate_filter_deps="gpl avcodec"
2085 delogo_filter_deps="gpl"
2086 deshake_filter_deps="avcodec"
2087 drawtext_filter_deps="libfreetype"
2088 ebur128_filter_deps="gpl"
2089 flite_filter_deps="libflite"
2090 frei0r_filter_deps="frei0r dlopen"
2091 frei0r_filter_extralibs='$ldl'
2092 frei0r_src_filter_deps="frei0r dlopen"
2093 frei0r_src_filter_extralibs='$ldl'
2094 geq_filter_deps="gpl"
2095 histeq_filter_deps="gpl"
2096 hqdn3d_filter_deps="gpl"
2097 hue_filter_deps="gpl"
2098 kerndeint_filter_deps="gpl"
2099 movie_filter_deps="avcodec avformat"
2100 mp_filter_deps="gpl avcodec swscale inline_asm"
2101 mptestsrc_filter_deps="gpl"
2102 negate_filter_deps="lut_filter"
2103 noise_filter_deps="gpl"
2104 resample_filter_deps="avresample"
2105 ocv_filter_deps="libopencv"
2106 pan_filter_deps="swresample"
2107 pp_filter_deps="gpl postproc"
2108 removelogo_filter_deps="avcodec avformat swscale"
2109 scale_filter_deps="swscale"
2110 smartblur_filter_deps="gpl swscale"
2111 showspectrum_filter_deps="avcodec rdft"
2112 stereo3d_filter_deps="gpl"
2113 subtitles_filter_deps="avformat avcodec libass"
2114 super2xsai_filter_deps="gpl"
2115 tinterlace_filter_deps="gpl"
2116 yadif_filter_deps="gpl"
2117 pixfmts_super2xsai_test_deps="super2xsai_filter"
2118 tinterlace_merge_test_deps="tinterlace_filter"
2119 tinterlace_pad_test_deps="tinterlace_filter"
2120
2121 # libraries
2122 avcodec_deps="avutil"
2123 avdevice_deps="avutil avcodec avformat"
2124 avfilter_deps="avutil"
2125 avformat_deps="avutil avcodec"
2126 avresample_deps="avutil"
2127 postproc_deps="avutil gpl"
2128 swscale_deps="avutil"
2129
2130 # programs
2131 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2132 ffmpeg_select="format_filter aformat_filter
2133                setpts_filter null_filter anull_filter"
2134 ffplay_deps="avcodec avformat swscale swresample sdl"
2135 ffplay_select="rdft crop_filter"
2136 ffprobe_deps="avcodec avformat"
2137 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2138 ffserver_extralibs='$ldl'
2139
2140 # documentation
2141 podpages_deps="perl"
2142 manpages_deps="perl pod2man"
2143 htmlpages_deps="texi2html"
2144 txtpages_deps="makeinfo"
2145 doc_deps_any="manpages htmlpages podpages txtpages"
2146
2147 # default parameters
2148
2149 logfile="config.log"
2150
2151 # installation paths
2152 prefix_default="/usr/local"
2153 bindir_default='${prefix}/bin'
2154 datadir_default='${prefix}/share/ffmpeg'
2155 incdir_default='${prefix}/include'
2156 libdir_default='${prefix}/lib'
2157 mandir_default='${prefix}/share/man'
2158 shlibdir_default="$libdir_default"
2159
2160 # toolchain
2161 ar_default="ar"
2162 cc_default="gcc"
2163 cxx_default="g++"
2164 host_cc_default="gcc"
2165 cp_f="cp -f"
2166 install="install"
2167 ln_s="ln -s -f"
2168 nm_default="nm -g"
2169 objformat="elf"
2170 pkg_config_default=pkg-config
2171 ranlib="ranlib"
2172 strip_default="strip"
2173 yasmexe_default="yasm"
2174
2175 nogas=":"
2176
2177 # machine
2178 arch_default=$(uname -m)
2179 cpu="generic"
2180
2181 # OS
2182 target_os_default=$(tolower $(uname -s))
2183 host_os=$target_os_default
2184
2185 # configurable options
2186 enable $PROGRAM_LIST
2187 enable $DOCUMENT_LIST
2188 enable $(filter_out avresample $LIBRARY_LIST)
2189 enable stripping
2190
2191 enable asm
2192 enable debug
2193 enable doc
2194 enable optimizations
2195 enable runtime_cpudetect
2196 enable safe_bitstream_reader
2197 enable static
2198 enable swscale_alpha
2199
2200 # build settings
2201 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2202 FFSERVERLDFLAGS=-Wl,-E
2203 LIBPREF="lib"
2204 LIBSUF=".a"
2205 FULLNAME='$(NAME)$(BUILDSUF)'
2206 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2207 SLIBPREF="lib"
2208 SLIBSUF=".so"
2209 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2210 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2211 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2212 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2213 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2214 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2215
2216 asflags_filter=echo
2217 cflags_filter=echo
2218 ldflags_filter=echo
2219
2220 AS_C='-c'
2221 AS_O='-o $@'
2222 CC_C='-c'
2223 CC_E='-E -o $@'
2224 CC_O='-o $@'
2225 CXX_C='-c'
2226 CXX_O='-o $@'
2227 LD_O='-o $@'
2228 LD_LIB='-l%'
2229 LD_PATH='-L'
2230 HOSTCC_C='-c'
2231 HOSTCC_O='-o $@'
2232 HOSTLD_O='-o $@'
2233
2234 host_cflags='-O3 -g'
2235 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2236 host_libs='-lm'
2237 host_cflags_filter=echo
2238 host_ldflags_filter=echo
2239
2240 target_path='$(CURDIR)'
2241
2242 # since the object filename is not given with the -MM flag, the compiler
2243 # is only able to print the basename, and we must add the path ourselves
2244 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2245 DEPFLAGS='-MM'
2246
2247 # find source path
2248 if test -f configure; then
2249     source_path=.
2250 else
2251     source_path=$(cd $(dirname "$0"); pwd)
2252     echo "$source_path" | grep -q '[[:blank:]]' &&
2253         die "Out of tree builds are impossible with whitespace in source path."
2254     test -e "$source_path/config.h" &&
2255         die "Out of tree builds are impossible with config.h in source dir."
2256 fi
2257
2258 for v in "$@"; do
2259     r=${v#*=}
2260     l=${v%"$r"}
2261     r=$(sh_quote "$r")
2262     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2263 done
2264
2265 find_things(){
2266     thing=$1
2267     pattern=$2
2268     file=$source_path/$3
2269     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2270 }
2271
2272 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2273 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2274 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2275 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2276 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2277 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2278 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2279 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2280 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2281 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2282 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2283
2284 ALL_COMPONENTS="
2285     $BSF_LIST
2286     $DECODER_LIST
2287     $DEMUXER_LIST
2288     $ENCODER_LIST
2289     $FILTER_LIST
2290     $HWACCEL_LIST
2291     $INDEV_LIST
2292     $MUXER_LIST
2293     $OUTDEV_LIST
2294     $PARSER_LIST
2295     $PROTOCOL_LIST
2296 "
2297
2298 for n in $COMPONENT_LIST; do
2299     v=$(toupper ${n%s})_LIST
2300     eval enable \$$v
2301     eval ${n}_if_any="\$$v"
2302 done
2303
2304 enable $ARCH_EXT_LIST
2305
2306 die_unknown(){
2307     echo "Unknown option \"$1\"."
2308     echo "See $0 --help for available options."
2309     exit 1
2310 }
2311
2312 print_3_columns() {
2313     cat | tr ' ' '\n' | sort | pr -r -3 -t
2314 }
2315
2316 show_list() {
2317     suffix=_$1
2318     shift
2319     echo $* | sed s/$suffix//g | print_3_columns
2320     exit 0
2321 }
2322
2323 rand_list(){
2324     IFS=', '
2325     set -- $*
2326     unset IFS
2327     for thing; do
2328         comp=${thing%:*}
2329         prob=${thing#$comp}
2330         prob=${prob#:}
2331         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2332         echo "prob ${prob:-0.5}"
2333         printf '%s\n' $comp
2334     done
2335 }
2336
2337 do_random(){
2338     action=$1
2339     shift
2340     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2341     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2342 }
2343
2344 for opt do
2345     optval="${opt#*=}"
2346     case "$opt" in
2347         --extra-ldflags=*)
2348             add_ldflags $optval
2349         ;;
2350         --extra-libs=*)
2351             add_extralibs $optval
2352         ;;
2353         --disable-devices)
2354             disable $INDEV_LIST $OUTDEV_LIST
2355         ;;
2356         --enable-debug=*)
2357             debuglevel="$optval"
2358         ;;
2359         --disable-programs)
2360             disable $PROGRAM_LIST
2361         ;;
2362         --disable-everything)
2363             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2364         ;;
2365         --disable-all)
2366             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2367             disable $LIBRARY_LIST $PROGRAM_LIST doc
2368         ;;
2369         --enable-random|--disable-random)
2370             action=${opt%%-random}
2371             do_random ${action#--} $COMPONENT_LIST
2372         ;;
2373         --enable-random=*|--disable-random=*)
2374             action=${opt%%-random=*}
2375             do_random ${action#--} $optval
2376         ;;
2377         --enable-*=*|--disable-*=*)
2378             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2379             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2380             eval list=\$$(toupper $thing)_LIST
2381             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2382             list=$(filter "$name" $list)
2383             [ "$list" = "" ] && warn "Option $opt did not match anything"
2384             $action $list
2385         ;;
2386         --enable-?*|--disable-?*)
2387             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2388             if is_in $option $COMPONENT_LIST; then
2389                 test $action = disable && action=unset
2390                 eval $action \$$(toupper ${option%s})_LIST
2391             elif is_in $option $CMDLINE_SELECT; then
2392                 $action $option
2393             else
2394                 die_unknown $opt
2395             fi
2396         ;;
2397         --list-*)
2398             NAME="${opt#--list-}"
2399             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2400             NAME=${NAME%s}
2401             eval show_list $NAME \$$(toupper $NAME)_LIST
2402         ;;
2403         --help|-h) show_help
2404         ;;
2405         --fatal-warnings) enable fatal_warnings
2406         ;;
2407         *)
2408             optname="${opt%%=*}"
2409             optname="${optname#--}"
2410             optname=$(echo "$optname" | sed 's/-/_/g')
2411             if is_in $optname $CMDLINE_SET; then
2412                 eval $optname='$optval'
2413             elif is_in $optname $CMDLINE_APPEND; then
2414                 append $optname "$optval"
2415             else
2416                 die_unknown $opt
2417             fi
2418         ;;
2419     esac
2420 done
2421
2422 disabled logging && logfile=/dev/null
2423
2424 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2425 set >> $logfile
2426
2427 test -n "$cross_prefix" && enable cross_compile
2428
2429 if enabled cross_compile; then
2430     test -n "$arch" && test -n "$target_os" ||
2431         die "Must specify target arch and OS when cross-compiling"
2432 fi
2433
2434 ar_default="${cross_prefix}${ar_default}"
2435 cc_default="${cross_prefix}${cc_default}"
2436 cxx_default="${cross_prefix}${cxx_default}"
2437 nm_default="${cross_prefix}${nm_default}"
2438 pkg_config_default="${cross_prefix}${pkg_config_default}"
2439 ranlib="${cross_prefix}${ranlib}"
2440 strip_default="${cross_prefix}${strip_default}"
2441
2442 sysinclude_default="${sysroot}/usr/include"
2443
2444 case "$toolchain" in
2445     clang-asan)
2446         cc_default="clang"
2447         add_cflags  -faddress-sanitizer
2448         add_ldflags -faddress-sanitizer
2449     ;;
2450     clang-tsan)
2451         cc_default="clang"
2452         add_cflags  -fthread-sanitizer
2453         add_ldflags -fthread-sanitizer
2454     ;;
2455     msvc)
2456         cc_default="c99wrap cl"
2457         ld_default="c99wrap link"
2458         nm_default="dumpbin -symbols"
2459         ar_default="lib"
2460         target_os_default="win32"
2461     ;;
2462     ?*)
2463         die "Unknown toolchain $toolchain"
2464     ;;
2465 esac
2466
2467 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2468 enabled cross_compile || host_cc_default=$cc
2469 set_default host_cc
2470
2471 if ! $pkg_config --version >/dev/null 2>&1; then
2472     warn "$pkg_config not found, library detection may fail."
2473     pkg_config=false
2474 fi
2475
2476 exesuf() {
2477     case $1 in
2478         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2479     esac
2480 }
2481
2482 EXESUF=$(exesuf $target_os)
2483 HOSTEXESUF=$(exesuf $host_os)
2484
2485 # set temporary file name
2486 : ${TMPDIR:=$TEMPDIR}
2487 : ${TMPDIR:=$TMP}
2488 : ${TMPDIR:=/tmp}
2489
2490 if ! check_cmd mktemp -u XXXXXX; then
2491     # simple replacement for missing mktemp
2492     # NOT SAFE FOR GENERAL USE
2493     mktemp(){
2494         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2495     }
2496 fi
2497
2498 tmpfile(){
2499     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2500         (set -C; exec > $tmp) 2>/dev/null ||
2501         die "Unable to create temporary file in $TMPDIR."
2502     append TMPFILES $tmp
2503     eval $1=$tmp
2504 }
2505
2506 trap 'rm -f -- $TMPFILES' EXIT
2507
2508 tmpfile TMPASM .asm
2509 tmpfile TMPC   .c
2510 tmpfile TMPCPP .cpp
2511 tmpfile TMPE   $EXESUF
2512 tmpfile TMPH   .h
2513 tmpfile TMPO   .o
2514 tmpfile TMPS   .S
2515 tmpfile TMPSH  .sh
2516 tmpfile TMPV   .ver
2517
2518 unset -f mktemp
2519
2520 chmod +x $TMPE
2521
2522 # make sure we can execute files in $TMPDIR
2523 cat > $TMPSH 2>> $logfile <<EOF
2524 #! /bin/sh
2525 EOF
2526 chmod +x $TMPSH >> $logfile 2>&1
2527 if ! $TMPSH >> $logfile 2>&1; then
2528     cat <<EOF
2529 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2530 variable to another directory and make sure that it is not mounted noexec.
2531 EOF
2532     die "Sanity test failed."
2533 fi
2534
2535 ccc_flags(){
2536     for flag; do
2537         case $flag in
2538             -std=c99)           echo -c99                       ;;
2539             -mcpu=*)            echo -arch ${flag#*=}           ;;
2540             -mieee)             echo -ieee                      ;;
2541             -O*|-fast)          echo $flag                      ;;
2542             -fno-math-errno)    echo -assume nomath_errno       ;;
2543             -g)                 echo -g3                        ;;
2544             -Wall)              echo -msg_enable level2         ;;
2545             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2546             -Wl,*)              echo $flag                      ;;
2547             -f*|-W*)                                            ;;
2548             *)                  echo $flag                      ;;
2549         esac
2550    done
2551 }
2552
2553 msvc_flags(){
2554     for flag; do
2555         case $flag in
2556             -fomit-frame-pointer) echo -Oy ;;
2557             -g)                   echo -Z7 ;;
2558             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2559                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2560                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2561                                        -wd4554 \
2562                                        -wd4996 -wd4273 ;;
2563             -std=c99)             ;;
2564             -fno-math-errno)      ;;
2565             -fno-common)          ;;
2566             -fno-signed-zeros)    ;;
2567             -fPIC)                ;;
2568             -lz)                  echo zlib.lib ;;
2569             -lavifil32)           echo vfw32.lib ;;
2570             -lavicap32)           echo vfw32.lib user32.lib ;;
2571             -l*)                  echo ${flag#-l}.lib ;;
2572             *)                    echo $flag ;;
2573         esac
2574     done
2575 }
2576
2577 pgi_flags(){
2578     for flag; do
2579         case $flag in
2580             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2581             -fomit-frame-pointer) echo -Mnoframe ;;
2582             -g)                   echo -gopt ;;
2583             *)                    echo $flag ;;
2584         esac
2585     done
2586 }
2587
2588 suncc_flags(){
2589     for flag; do
2590         case $flag in
2591             -march=*|-mcpu=*)
2592                 case "${flag#*=}" in
2593                     native)                   echo -xtarget=native       ;;
2594                     v9|niagara)               echo -xarch=sparc          ;;
2595                     ultrasparc)               echo -xarch=sparcvis       ;;
2596                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2597                     i586|pentium)             echo -xchip=pentium        ;;
2598                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2599                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2600                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2601                     pentium4*)          echo -xtarget=pentium4           ;;
2602                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2603                     *-sse3)             echo -xarch=sse3                 ;;
2604                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2605                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2606                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2607                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2608                     bdver*)                   echo -xarch=avx            ;;
2609                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2610                     k8|opteron|athlon64|athlon-fx)
2611                                               echo -xarch=sse2a          ;;
2612                     athlon*)                  echo -xarch=pentium_proa   ;;
2613                 esac
2614                 ;;
2615             -std=c99)             echo -xc99              ;;
2616             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2617             -fPIC)                echo -KPIC -xcode=pic32 ;;
2618             -W*,*)                echo $flag              ;;
2619             -f*-*|-W*|-mimpure-text)                      ;;
2620             -shared)              echo -G                 ;;
2621             *)                    echo $flag              ;;
2622         esac
2623     done
2624 }
2625
2626 tms470_flags(){
2627     for flag; do
2628         case $flag in
2629             -march=*|-mcpu=*)
2630                 case "${flag#*=}" in
2631                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2632                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2633                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2634                     armv6*|arm11*)          echo -mv=6   ;;
2635                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2636                                             echo -mv=5e  ;;
2637                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2638                 esac
2639                 ;;
2640             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2641             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2642             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2643             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2644             -msoft-float)   echo --float_support=vfplib       ;;
2645             -O[0-3]|-mf=*)  echo $flag                        ;;
2646             -g)             echo -g -mn                       ;;
2647             -pds=*)         echo $flag                        ;;
2648             -D*|-I*)        echo $flag                        ;;
2649             --gcc|--abi=*)  echo $flag                        ;;
2650             -me)            echo $flag                        ;;
2651         esac
2652     done
2653 }
2654
2655 probe_cc(){
2656     pfx=$1
2657     _cc=$2
2658
2659     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2660     unset _ld_o _ldflags _ld_lib _ld_path
2661     unset _depflags _DEPCMD _DEPFLAGS
2662     _flags_filter=echo
2663
2664     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2665         _type=llvm_gcc
2666         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2667         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2668         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2669         _cflags_speed='-O3'
2670         _cflags_size='-Os'
2671     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2672         _type=gcc
2673         gcc_version=$($_cc --version | head -n1)
2674         gcc_basever=$($_cc -dumpversion)
2675         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2676         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2677         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2678         if ! $_cc -dumpversion | grep -q '^2\.'; then
2679             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2680         fi
2681         _cflags_speed='-O3'
2682         _cflags_size='-Os'
2683     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2684         _type=icc
2685         _ident=$($_cc --version | head -n1)
2686         _depflags='-MMD'
2687         _cflags_speed='-O3'
2688         _cflags_size='-Os'
2689         _cflags_noopt='-O1'
2690     elif $_cc -v 2>&1 | grep -q xlc; then
2691         _type=xlc
2692         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2693         _cflags_speed='-O5'
2694         _cflags_size='-O5 -qcompact'
2695     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2696         _type=ccc
2697         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2698         _DEPFLAGS='-M'
2699         _cflags_speed='-fast'
2700         _cflags_size='-O1'
2701         _flags_filter=ccc_flags
2702     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2703         test -d "$sysroot" || die "No valid sysroot specified."
2704         _type=armcc
2705         _ident=$($_cc --vsn | head -n1)
2706         armcc_conf="$PWD/armcc.conf"
2707         $_cc --arm_linux_configure                 \
2708              --arm_linux_config_file="$armcc_conf" \
2709              --configure_sysroot="$sysroot"        \
2710              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2711              die "Error creating armcc configuration file."
2712         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2713         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2714         as_default="${cross_prefix}gcc"
2715         _depflags='-MMD'
2716         _cflags_speed='-O3'
2717         _cflags_size='-Os'
2718     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2719         _type=tms470
2720         _ident=$($_cc -version | head -n1 | tr -s ' ')
2721         _flags='--gcc --abi=eabi -me'
2722         _cc_e='-ppl -fe=$@'
2723         _cc_o='-fe=$@'
2724         _depflags='-ppa -ppd=$(@:.o=.d)'
2725         _cflags_speed='-O3 -mf=5'
2726         _cflags_size='-O3 -mf=2'
2727         _flags_filter=tms470_flags
2728     elif $_cc -v 2>&1 | grep -q clang; then
2729         _type=clang
2730         _ident=$($_cc --version | head -n1)
2731         _depflags='-MMD'
2732         _cflags_speed='-O3'
2733         _cflags_size='-Os'
2734     elif $_cc -V 2>&1 | grep -q Sun; then
2735         _type=suncc
2736         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2737         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2738         _DEPFLAGS='-xM1 -xc99'
2739         _ldflags='-std=c99'
2740         _cflags_speed='-O5'
2741         _cflags_size='-O5 -xspace'
2742         _flags_filter=suncc_flags
2743     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2744         _type=pathscale
2745         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2746         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2747         _cflags_speed='-O2'
2748         _cflags_size='-Os'
2749         _flags_filter='filter_out -Wdisabled-optimization'
2750     elif $_cc -v 2>&1 | grep -q Open64; then
2751         _type=open64
2752         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2753         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2754         _cflags_speed='-O2'
2755         _cflags_size='-Os'
2756         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2757     elif $_cc -V 2>&1 | grep -q Portland; then
2758         _type=pgi
2759         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2760         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2761         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2762         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2763         _cflags_noopt="-O1"
2764         _flags_filter=pgi_flags
2765     elif $_cc 2>&1 | grep -q Microsoft; then
2766         _type=msvc
2767         _ident=$($cc 2>&1 | head -n1)
2768         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2769         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2770         _cflags_speed="-O2"
2771         _cflags_size="-O1"
2772         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2773         if $_cc 2>&1 | grep -q Linker; then
2774             _ld_o='-out $@'
2775         else
2776             _ld_o='-Fe$@'
2777         fi
2778         _cc_o='-Fo $@'
2779         _cc_e='-P -Fi $@'
2780         _flags_filter=msvc_flags
2781         _ld_lib='lib%.a'
2782         _ld_path='-libpath:'
2783         _flags='-nologo'
2784         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2785         if [ $pfx = hostcc ]; then
2786             append _cflags -Dsnprintf=_snprintf
2787         fi
2788         disable stripping
2789     fi
2790
2791     eval ${pfx}_type=\$_type
2792     eval ${pfx}_ident=\$_ident
2793 }
2794
2795 set_ccvars(){
2796     eval ${1}_C=\${_cc_c-\${${1}_C}}
2797     eval ${1}_E=\${_cc_e-\${${1}_E}}
2798     eval ${1}_O=\${_cc_o-\${${1}_O}}
2799
2800     if [ -n "$_depflags" ]; then
2801         eval ${1}_DEPFLAGS=\$_depflags
2802     else
2803         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2804         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2805         eval DEP${1}FLAGS=\$_flags
2806     fi
2807 }
2808
2809 probe_cc cc "$cc"
2810 cflags_filter=$_flags_filter
2811 cflags_speed=$_cflags_speed
2812 cflags_size=$_cflags_size
2813 cflags_noopt=$_cflags_noopt
2814 add_cflags $_flags $_cflags
2815 cc_ldflags=$_ldflags
2816 set_ccvars CC
2817
2818 probe_cc hostcc "$host_cc"
2819 host_cflags_filter=$_flags_filter
2820 add_host_cflags  $_flags $_cflags
2821 set_ccvars HOSTCC
2822
2823 test -n "$cc_type" && enable $cc_type ||
2824     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2825
2826 : ${as_default:=$cc}
2827 : ${dep_cc_default:=$cc}
2828 : ${ld_default:=$cc}
2829 : ${host_ld_default:=$host_cc}
2830 set_default ar as dep_cc ld host_ld
2831
2832 probe_cc as "$as"
2833 asflags_filter=$_flags_filter
2834 add_asflags $_flags $_cflags
2835 set_ccvars AS
2836
2837 probe_cc ld "$ld"
2838 ldflags_filter=$_flags_filter
2839 add_ldflags $_flags $_ldflags
2840 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2841 LD_O=${_ld_o-$LD_O}
2842 LD_LIB=${_ld_lib-$LD_LIB}
2843 LD_PATH=${_ld_path-$LD_PATH}
2844
2845 probe_cc hostld "$host_ld"
2846 host_ldflags_filter=$_flags_filter
2847 add_host_ldflags $_flags $_ldflags
2848 HOSTLD_O=${_ld_o-$HOSTLD_O}
2849
2850 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2851     probe_cc depcc "$dep_cc"
2852     CCDEP=${_DEPCMD:-$DEPCMD}
2853     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2854     DEPCCFLAGS=$_flags
2855 fi
2856
2857 if $ar 2>&1 | grep -q Microsoft; then
2858     arflags="-nologo"
2859     ar_o='-out:$@'
2860 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2861     arflags="rq"
2862     ar_o='$@'
2863 else
2864     arflags="rc"
2865     ar_o='$@'
2866 fi
2867
2868 add_cflags $extra_cflags
2869 add_cxxflags $extra_cxxflags
2870 add_asflags $extra_cflags
2871
2872 if test -n "$sysroot"; then
2873     case "$cc_type" in
2874         gcc|llvm_gcc|clang)
2875             add_cppflags --sysroot="$sysroot"
2876             add_ldflags --sysroot="$sysroot"
2877         ;;
2878         tms470)
2879             add_cppflags -I"$sysinclude"
2880             add_ldflags  --sysroot="$sysroot"
2881         ;;
2882     esac
2883 fi
2884
2885 if test "$cpu" = host; then
2886     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2887
2888     case "$cc_type" in
2889         gcc|llvm_gcc)
2890             check_native(){
2891                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2892                 sed -n "/cc1.*$1=/{
2893                             s/.*$1=\\([^ ]*\\).*/\\1/
2894                             p
2895                             q
2896                         }" $TMPE
2897             }
2898             cpu=$(check_native -march || check_native -mcpu)
2899         ;;
2900     esac
2901
2902     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2903 fi
2904
2905 # Deal with common $arch aliases
2906 case "$arch" in
2907     aarch64|arm64)
2908         arch="aarch64"
2909     ;;
2910     arm*|iPad*)
2911         arch="arm"
2912     ;;
2913     mips*|IP*)
2914         arch="mips"
2915     ;;
2916     parisc*|hppa*)
2917         arch="parisc"
2918     ;;
2919     "Power Macintosh"|ppc*|powerpc*)
2920         arch="ppc"
2921     ;;
2922     s390|s390x)
2923         arch="s390"
2924     ;;
2925     sh4|sh)
2926         arch="sh4"
2927     ;;
2928     sun4u|sparc*)
2929         arch="sparc"
2930     ;;
2931     tilegx|tile-gx)
2932         arch="tilegx"
2933     ;;
2934     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2935         arch="x86"
2936     ;;
2937 esac
2938
2939 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2940 enable $arch
2941
2942 # Add processor-specific flags
2943 if enabled aarch64; then
2944
2945     case $cpu in
2946         armv*)
2947             cpuflags="-march=$cpu"
2948         ;;
2949         *)
2950             cpuflags="-mcpu=$cpu"
2951         ;;
2952     esac
2953
2954 elif enabled alpha; then
2955
2956     cpuflags="-mcpu=$cpu"
2957
2958 elif enabled arm; then
2959
2960     check_arm_arch() {
2961         check_cpp_condition stddef.h \
2962             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2963             $cpuflags
2964     }
2965
2966     probe_arm_arch() {
2967         if   check_arm_arch 4;        then echo armv4;
2968         elif check_arm_arch 4T;       then echo armv4t;
2969         elif check_arm_arch 5;        then echo armv5;
2970         elif check_arm_arch 5E;       then echo armv5e;
2971         elif check_arm_arch 5T;       then echo armv5t;
2972         elif check_arm_arch 5TE;      then echo armv5te;
2973         elif check_arm_arch 5TEJ;     then echo armv5te;
2974         elif check_arm_arch 6;        then echo armv6;
2975         elif check_arm_arch 6J;       then echo armv6j;
2976         elif check_arm_arch 6K;       then echo armv6k;
2977         elif check_arm_arch 6Z;       then echo armv6z;
2978         elif check_arm_arch 6ZK;      then echo armv6zk;
2979         elif check_arm_arch 6T2;      then echo armv6t2;
2980         elif check_arm_arch 7;        then echo armv7;
2981         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2982         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2983         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2984         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2985         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2986         fi
2987     }
2988
2989     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2990
2991     case $cpu in
2992         armv*)
2993             cpuflags="-march=$cpu"
2994             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2995         ;;
2996         *)
2997             cpuflags="-mcpu=$cpu"
2998             case $cpu in
2999                 cortex-a*)                               subarch=armv7a  ;;
3000                 cortex-r*)                               subarch=armv7r  ;;
3001                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3002                 arm11*)                                  subarch=armv6   ;;
3003                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3004                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3005                 *)                             subarch=$(probe_arm_arch) ;;
3006             esac
3007         ;;
3008     esac
3009
3010     case "$subarch" in
3011         armv5t*)    enable fast_clz                ;;
3012         armv[6-8]*) enable fast_clz fast_unaligned ;;
3013     esac
3014
3015 elif enabled avr32; then
3016
3017     case $cpu in
3018         ap7[02]0[0-2])
3019             subarch="avr32_ap"
3020             cpuflags="-mpart=$cpu"
3021         ;;
3022         ap)
3023             subarch="avr32_ap"
3024             cpuflags="-march=$cpu"
3025         ;;
3026         uc3[ab]*)
3027             subarch="avr32_uc"
3028             cpuflags="-mcpu=$cpu"
3029         ;;
3030         uc)
3031             subarch="avr32_uc"
3032             cpuflags="-march=$cpu"
3033         ;;
3034     esac
3035
3036 elif enabled bfin; then
3037
3038     cpuflags="-mcpu=$cpu"
3039
3040 elif enabled mips; then
3041
3042     cpuflags="-march=$cpu"
3043
3044     case $cpu in
3045         24kc)
3046             disable mipsfpu
3047             disable mipsdspr1
3048             disable mipsdspr2
3049         ;;
3050         24kf*)
3051             disable mipsdspr1
3052             disable mipsdspr2
3053         ;;
3054         24kec|34kc|1004kc)
3055             disable mipsfpu
3056             disable mipsdspr2
3057         ;;
3058         24kef*|34kf*|1004kf*)
3059             disable mipsdspr2
3060         ;;
3061         74kc)
3062             disable mipsfpu
3063         ;;
3064     esac
3065
3066 elif enabled ppc; then
3067
3068     case $(tolower $cpu) in
3069         601|ppc601|powerpc601)
3070             cpuflags="-mcpu=601"
3071             disable altivec
3072         ;;
3073         603*|ppc603*|powerpc603*)
3074             cpuflags="-mcpu=603"
3075             disable altivec
3076         ;;
3077         604*|ppc604*|powerpc604*)
3078             cpuflags="-mcpu=604"
3079             disable altivec
3080         ;;
3081         g3|75*|ppc75*|powerpc75*)
3082             cpuflags="-mcpu=750"
3083             disable altivec
3084         ;;
3085         g4|745*|ppc745*|powerpc745*)
3086             cpuflags="-mcpu=7450"
3087         ;;
3088         74*|ppc74*|powerpc74*)
3089             cpuflags="-mcpu=7400"
3090         ;;
3091         g5|970|ppc970|powerpc970)
3092             cpuflags="-mcpu=970"
3093         ;;
3094         power[3-7]*)
3095             cpuflags="-mcpu=$cpu"
3096         ;;
3097         cell)
3098             cpuflags="-mcpu=cell"
3099             enable ldbrx
3100         ;;
3101         e500mc)
3102             cpuflags="-mcpu=e500mc"
3103             disable altivec
3104         ;;
3105         e500v2)
3106             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3107             disable altivec
3108         ;;
3109         e500)
3110             cpuflags="-mcpu=8540 -mhard-float"
3111             disable altivec
3112         ;;
3113     esac
3114
3115 elif enabled sparc; then
3116
3117     case $cpu in
3118         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3119             cpuflags="-mcpu=$cpu"
3120             disable vis
3121         ;;
3122         ultrasparc*|niagara[234])
3123             cpuflags="-mcpu=$cpu"
3124         ;;
3125     esac
3126
3127 elif enabled x86; then
3128
3129     case $cpu in
3130         i[345]86|pentium)
3131             cpuflags="-march=$cpu"
3132             disable mmx
3133         ;;
3134         # targets that do NOT support conditional mov (cmov)
3135         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3136             cpuflags="-march=$cpu"
3137             disable cmov
3138         ;;
3139         # targets that do support conditional mov (cmov)
3140         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3141             cpuflags="-march=$cpu"
3142             enable cmov
3143             enable fast_cmov
3144         ;;
3145         # targets that do support conditional mov but on which it's slow
3146         pentium4|pentium4m|prescott|nocona)
3147             cpuflags="-march=$cpu"
3148             enable cmov
3149             disable fast_cmov
3150         ;;
3151     esac
3152
3153 fi
3154
3155 if [ "$cpu" != generic ]; then
3156     add_cflags  $cpuflags
3157     add_asflags $cpuflags
3158 fi
3159
3160 # compiler sanity check
3161 check_exec <<EOF
3162 int main(void){ return 0; }
3163 EOF
3164 if test "$?" != 0; then
3165     echo "$cc is unable to create an executable file."
3166     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3167         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3168         echo "Only do this if you know what cross compiling means."
3169     fi
3170     die "C compiler test failed."
3171 fi
3172
3173 add_cppflags -D_ISOC99_SOURCE
3174 add_cxxflags -D__STDC_CONSTANT_MACROS
3175 check_cflags -std=c99
3176 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3177 #include <stdlib.h>
3178 EOF
3179 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3180 #include <stdlib.h>
3181 EOF
3182
3183 check_host_cflags -std=c99
3184 check_host_cflags -Wall
3185
3186 check_64bit(){
3187     arch32=$1
3188     arch64=$2
3189     expr=$3
3190     check_code cc "" "int test[2*($expr) - 1]" &&
3191         subarch=$arch64 || subarch=$arch32
3192 }
3193
3194 case "$arch" in
3195     aarch64|alpha|ia64)
3196         spic=$shared
3197     ;;
3198     mips)
3199         check_64bit mips mips64 '_MIPS_SIM > 1'
3200         spic=$shared
3201     ;;
3202     parisc)
3203         check_64bit parisc parisc64 'sizeof(void *) > 4'
3204         spic=$shared
3205     ;;
3206     ppc)
3207         check_64bit ppc ppc64 'sizeof(void *) > 4'
3208         spic=$shared
3209     ;;
3210     sparc)
3211         check_64bit sparc sparc64 'sizeof(void *) > 4'
3212         spic=$shared
3213     ;;
3214     x86)
3215         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3216         if test "$subarch" = "x86_64"; then
3217             spic=$shared
3218         fi
3219     ;;
3220     ppc)
3221         check_cc <<EOF && subarch="ppc64"
3222         int test[(int)sizeof(char*) - 7];
3223 EOF
3224     ;;
3225 esac
3226
3227 enable $subarch
3228 enabled spic && enable pic
3229
3230 # OS specific
3231 case $target_os in
3232     haiku)
3233         prefix_default="/boot/common"
3234         network_extralibs="-lnetwork"
3235         host_libs=
3236         ;;
3237     sunos)
3238         FFSERVERLDFLAGS=""
3239         SHFLAGS='-shared -Wl,-h,$$(@F)'
3240         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3241         network_extralibs="-lsocket -lnsl"
3242         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3243         # When using suncc to build, the Solaris linker will mark
3244         # an executable with each instruction set encountered by
3245         # the Solaris assembler.  As our libraries contain their own
3246         # guards for processor-specific code, instead suppress
3247         # generation of the HWCAPS ELF section on Solaris x86 only.
3248         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3249         nm_default='nm -P -g'
3250         ;;
3251     netbsd)
3252         disable symver
3253         oss_indev_extralibs="-lossaudio"
3254         oss_outdev_extralibs="-lossaudio"
3255         enabled gcc || check_ldflags -Wl,-zmuldefs
3256         ;;
3257     openbsd|bitrig)
3258         disable symver
3259         SHFLAGS='-shared'
3260         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3261         SLIB_INSTALL_LINKS=
3262         oss_indev_extralibs="-lossaudio"
3263         oss_outdev_extralibs="-lossaudio"
3264         ;;
3265     dragonfly)
3266         disable symver
3267         ;;
3268     freebsd)
3269         ;;
3270     bsd/os)
3271         add_extralibs -lpoll -lgnugetopt
3272         strip="strip -d"
3273         ;;
3274     darwin)
3275         gas="gas-preprocessor.pl $cc"
3276         enabled ppc && add_asflags -force_cpusubtype_ALL
3277         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3278         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3279         strip="${strip} -x"
3280         add_ldflags -Wl,-dynamic,-search_paths_first
3281         SLIBSUF=".dylib"
3282         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3283         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3284         FFSERVERLDFLAGS=-Wl,-bind_at_load
3285         objformat="macho"
3286         enabled x86_64 && objformat="macho64"
3287         enabled_any pic shared ||
3288             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3289         ;;
3290     mingw32*)
3291         if test $target_os = "mingw32ce"; then
3292             disable network
3293         else
3294             target_os=mingw32
3295         fi
3296         LIBTARGET=i386
3297         if enabled x86_64; then
3298             LIBTARGET="i386:x86-64"
3299         elif enabled arm; then
3300             LIBTARGET=arm-wince
3301         fi
3302         shlibdir_default="$bindir_default"
3303         SLIBPREF=""
3304         SLIBSUF=".dll"
3305         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3306         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3307         dlltool="${cross_prefix}dlltool"
3308         if check_cmd lib.exe -list; then
3309             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3310             if enabled x86_64; then
3311                 LIBTARGET=x64
3312             fi
3313         elif check_cmd $dlltool --version; then
3314             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3315         fi
3316         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3317         SLIB_INSTALL_LINKS=
3318         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3319         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3320         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3321         objformat="win32"
3322         ranlib=:
3323         enable dos_paths
3324         ;;
3325     win32|win64)
3326         if enabled shared; then
3327             # Link to the import library instead of the normal static library
3328             # for shared libs.
3329             LD_LIB='%.lib'
3330             # Cannot build shared and static libraries at the same time with
3331             # MSVC.
3332             disable static
3333         fi
3334         shlibdir_default="$bindir_default"
3335         SLIBPREF=""
3336         SLIBSUF=".dll"
3337         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3338         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3339         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3340         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3341         SLIB_INSTALL_LINKS=
3342         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3343         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3344         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3345         objformat="win32"
3346         ranlib=:
3347         enable dos_paths
3348         ;;
3349     cygwin*)
3350         target_os=cygwin
3351         shlibdir_default="$bindir_default"
3352         SLIBPREF="cyg"
3353         SLIBSUF=".dll"
3354         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3355         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3356         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3357         SLIB_INSTALL_LINKS=
3358         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3359         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3360         objformat="win32"
3361         enable dos_paths
3362         ;;
3363     *-dos|freedos|opendos)
3364         network_extralibs="-lsocket"
3365         objformat="coff"
3366         enable dos_paths
3367         add_cppflags -U__STRICT_ANSI__
3368         ;;
3369     linux)
3370         enable dv1394
3371         ;;
3372     irix*)
3373         target_os=irix
3374         ranlib="echo ignoring ranlib"
3375         ;;
3376     os/2*)
3377         strip="lxlite -CS"
3378         ln_s="cp -f"
3379         objformat="aout"
3380         add_cppflags -D_GNU_SOURCE
3381         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3382         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3383         FFSERVERLDFLAGS=""
3384         LIBSUF="_s.a"
3385         SLIBPREF=""
3386         SLIBSUF=".dll"
3387         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3388         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3389         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3390             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3391             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3392             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3393             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3394             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3395         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3396             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3397         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3398         enable dos_paths
3399         enable_weak os2threads
3400         ;;
3401     gnu/kfreebsd)
3402         add_cppflags -D_BSD_SOURCE
3403         ;;
3404     gnu)
3405         ;;
3406     qnx)
3407         add_cppflags -D_QNX_SOURCE
3408         network_extralibs="-lsocket"
3409         ;;
3410     symbian)
3411         SLIBSUF=".dll"
3412         enable dos_paths
3413         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3414         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3415         add_ldflags -Wl,--target1-abs,--no-undefined \
3416                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3417                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3418         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3419                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3420                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3421         ;;
3422     osf1)
3423         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3424         FFSERVERLDFLAGS=
3425         ;;
3426     minix)
3427         ;;
3428     plan9)
3429         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3430                      -D_REENTRANT_SOURCE        \
3431                      -D_RESEARCH_SOURCE         \
3432                      -DFD_SETSIZE=96            \
3433                      -DHAVE_SOCK_OPTS
3434         add_compat strtod.o strtod=avpriv_strtod
3435         network_extralibs='-lbsd'
3436         exeobjs=compat/plan9/main.o
3437         disable ffserver
3438         cp_f='cp'
3439         ;;
3440     none)
3441         ;;
3442     *)
3443         die "Unknown OS '$target_os'."
3444         ;;
3445 esac
3446
3447 # determine libc flavour
3448
3449 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3450 if check_cpp_condition features.h "defined __UCLIBC__"; then
3451     libc_type=uclibc
3452     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3453 elif check_cpp_condition features.h "defined __GLIBC__"; then
3454     libc_type=glibc
3455     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3456 # MinGW headers can be installed on Cygwin, so check for newlib first.
3457 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3458     libc_type=newlib
3459     add_cppflags -U__STRICT_ANSI__
3460 elif check_header _mingw.h; then
3461     libc_type=mingw
3462     check_cpp_condition _mingw.h \
3463         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3464             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3465         die "ERROR: MinGW runtime version must be >= 3.15."
3466     add_cppflags -U__STRICT_ANSI__
3467     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3468             __MINGW64_VERSION_MAJOR < 3"; then
3469         add_compat msvcrt/snprintf.o
3470         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3471     fi
3472 elif check_func_headers stdlib.h _get_doserrno; then
3473     libc_type=msvcrt
3474     add_compat strtod.o strtod=avpriv_strtod
3475     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3476                                  _snprintf=avpriv_snprintf  \
3477                                  vsnprintf=avpriv_vsnprintf
3478 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3479     libc_type=klibc
3480 fi
3481
3482 test -n "$libc_type" && enable $libc_type
3483
3484 # hacks for compiler/libc/os combinations
3485
3486 if enabled_all tms470 glibc; then
3487     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3488     add_cppflags -D__USER_LABEL_PREFIX__=
3489     add_cppflags -D__builtin_memset=memset
3490     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3491     add_cflags   -pds=48    # incompatible redefinition of macro
3492 fi
3493
3494 if enabled_all ccc glibc; then
3495     add_ldflags -Wl,-z,now  # calls to libots crash without this
3496 fi
3497
3498 esc(){
3499     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3500 }
3501
3502 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3503
3504 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3505
3506 set_default $PATHS_LIST
3507 set_default nm
3508
3509 # we need to build at least one lib type
3510 if ! enabled_any static shared; then
3511     cat <<EOF
3512 At least one library type must be built.
3513 Specify --enable-static to build the static libraries or --enable-shared to
3514 build the shared libraries as well. To only build the shared libraries specify
3515 --disable-static in addition to --enable-shared.
3516 EOF
3517     exit 1;
3518 fi
3519
3520 die_license_disabled() {
3521     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3522 }
3523
3524 die_license_disabled_gpl() {
3525     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3526 }
3527
3528 die_license_disabled gpl libcdio
3529 die_license_disabled gpl libutvideo
3530 die_license_disabled gpl libx264
3531 die_license_disabled gpl libxavs
3532 die_license_disabled gpl libxvid
3533 die_license_disabled gpl x11grab
3534
3535 die_license_disabled nonfree libaacplus
3536 die_license_disabled nonfree libfaac
3537 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3538 enabled gpl && die_license_disabled_gpl nonfree openssl
3539
3540 die_license_disabled version3 libopencore_amrnb
3541 die_license_disabled version3 libopencore_amrwb
3542 die_license_disabled version3 libvo_aacenc
3543 die_license_disabled version3 libvo_amrwbenc
3544
3545 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3546
3547 disabled optimizations || check_cflags -fomit-frame-pointer
3548
3549 enable_pic() {
3550     enable pic
3551     add_cppflags -DPIC
3552     add_cflags   -fPIC
3553     add_asflags  -fPIC
3554 }
3555
3556 enabled pic && enable_pic
3557
3558 check_cc <<EOF || die "Symbol mangling check failed."
3559 int ff_extern;
3560 EOF
3561 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3562 extern_prefix=${sym%%ff_extern*}
3563
3564 check_cc <<EOF && enable_weak inline_asm
3565 void foo(void) { __asm__ volatile ("" ::); }
3566 EOF
3567
3568 _restrict=
3569 for restrict_keyword in restrict __restrict__ __restrict; do
3570     check_cc <<EOF && _restrict=$restrict_keyword && break
3571 void foo(char * $restrict_keyword p);
3572 EOF
3573 done
3574
3575 check_cc <<EOF && enable attribute_packed
3576 struct { int x; } __attribute__((packed)) x;
3577 EOF
3578
3579 check_cc <<EOF && enable attribute_may_alias
3580 union { int x; } __attribute__((may_alias)) x;
3581 EOF
3582
3583 check_cc <<EOF || die "endian test failed"
3584 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3585 EOF
3586 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3587
3588 if enabled alpha; then
3589
3590     check_cflags -mieee
3591
3592 elif enabled arm; then
3593
3594     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3595 float func(float a, float b){ return a+b; }
3596 EOF
3597
3598     enabled thumb && check_cflags -mthumb || check_cflags -marm
3599     nogas=die
3600
3601     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3602         enable vfp_args
3603     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3604         case "${cross_prefix:-$cc}" in
3605             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3606             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3607 __asm__ (".eabi_attribute 28, 1");
3608 int main(void) { return 0; }
3609 EOF
3610         esac
3611         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3612     fi
3613
3614     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3615     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3616     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3617     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3618     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3619     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3620
3621     [ $target_os = linux ] ||
3622         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3623             $ARCH_EXT_LIST_ARM
3624
3625     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3626     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3627
3628     enabled_all armv6t2 shared !pic && enable_pic
3629
3630 elif enabled mips; then
3631
3632     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3633     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3634      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3635     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3636      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3637     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3638      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3639     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3640      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3641
3642 elif enabled parisc; then
3643
3644     if enabled gcc; then
3645         case $($cc -dumpversion) in
3646             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3647         esac
3648     fi
3649
3650 elif enabled ppc; then
3651
3652     enable local_aligned_8 local_aligned_16
3653
3654     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3655     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3656     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3657     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3658
3659     # AltiVec flags: The FSF version of GCC differs from the Apple version
3660     if enabled altivec; then
3661         nogas=warn
3662         check_cflags -maltivec -mabi=altivec &&
3663         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3664         check_cflags -faltivec
3665
3666         # check if our compiler supports Motorola AltiVec C API
3667         check_cc <<EOF || disable altivec
3668 $inc_altivec_h
3669 int main(void) {
3670     vector signed int v1 = (vector signed int) { 0 };
3671     vector signed int v2 = (vector signed int) { 1 };
3672     v1 = vec_add(v1, v2);
3673     return 0;
3674 }
3675 EOF
3676
3677         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3678     fi
3679
3680 elif enabled sparc; then
3681
3682     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3683
3684 elif enabled x86; then
3685
3686     check_builtin rdtsc    intrin.h   "__rdtsc()"
3687     check_builtin mm_empty mmintrin.h "_mm_empty()"
3688
3689     enable local_aligned_8 local_aligned_16
3690
3691     # check whether EBP is available on x86
3692     # As 'i' is stored on the stack, this program will crash
3693     # if the base pointer is used to access it because the
3694     # base pointer is cleared in the inline assembly code.
3695     check_exec_crash <<EOF && enable ebp_available
3696 volatile int i=0;
3697 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3698 return i;
3699 EOF
3700
3701     # check whether EBX is available on x86
3702     check_inline_asm ebx_available '""::"b"(0)' &&
3703         check_inline_asm ebx_available '"":::"%ebx"'
3704
3705     # check whether xmm clobbers are supported
3706     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3707
3708     # check whether binutils is new enough to compile SSSE3/MMXEXT
3709     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3710     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3711
3712     if ! disabled_any asm mmx yasm; then
3713         if check_cmd $yasmexe --version; then
3714             enabled x86_64 && yasm_extra="-m amd64"
3715             yasm_debug="-g dwarf2"
3716         elif check_cmd nasm -v; then
3717             yasmexe=nasm
3718             yasm_debug="-g -F dwarf"
3719             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3720         fi
3721
3722         YASMFLAGS="-f $objformat $yasm_extra"
3723         enabled pic               && append YASMFLAGS "-DPIC"
3724         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3725         case "$objformat" in
3726             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3727         esac
3728
3729         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3730             die "yasm not found, use --disable-yasm for a crippled build"
3731         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3732         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3733         check_yasm "CPU amdnop" && enable cpunop
3734     fi
3735
3736     case "$cpu" in
3737         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3738             disable fast_clz
3739         ;;
3740     esac
3741
3742 fi
3743
3744 if enabled asm; then
3745     as=${gas:=$as}
3746     check_as <<EOF && enable gnu_as || \
3747         $nogas "GNU assembler not found, install gas-preprocessor"
3748 .macro m n
3749 \n: .int 0
3750 .endm
3751 m x
3752 EOF
3753 fi
3754
3755 check_ldflags -Wl,--as-needed
3756
3757 if check_func dlopen; then
3758     ldl=
3759 elif check_func dlopen -ldl; then
3760     ldl=-ldl
3761 fi
3762
3763 if ! disabled network; then
3764     check_type "sys/types.h sys/socket.h" socklen_t
3765     check_type netdb.h "struct addrinfo"
3766     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3767     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3768     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3769     check_type netinet/in.h "struct sockaddr_in6"
3770     check_type poll.h "struct pollfd"
3771     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3772     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3773     check_type netinet/sctp.h "struct sctp_event_subscribe"
3774     check_func getaddrinfo $network_extralibs
3775     check_func getservbyport $network_extralibs
3776     # Prefer arpa/inet.h over winsock2
3777     if check_header arpa/inet.h ; then
3778         check_func closesocket
3779     elif check_header winsock2.h ; then
3780         check_func_headers winsock2.h closesocket -lws2 &&
3781             network_extralibs="-lws2" ||
3782         { check_func_headers winsock2.h closesocket -lws2_32 &&
3783             network_extralibs="-lws2_32"; }
3784         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3785         check_type ws2tcpip.h socklen_t
3786         check_type ws2tcpip.h "struct addrinfo"
3787         check_type ws2tcpip.h "struct group_source_req"
3788         check_type ws2tcpip.h "struct ip_mreq_source"
3789         check_type ws2tcpip.h "struct ipv6_mreq"
3790         check_type winsock2.h "struct pollfd"
3791         check_type ws2tcpip.h "struct sockaddr_in6"
3792         check_type ws2tcpip.h "struct sockaddr_storage"
3793         check_struct winsock2.h "struct sockaddr" sa_len
3794     else
3795         disable network
3796     fi
3797 fi
3798
3799 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3800 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3801
3802 check_func  access
3803 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3804 check_func  fcntl
3805 check_func  fork
3806 check_func  gethrtime
3807 check_func  getopt
3808 check_func  getrusage
3809 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3810 check_func  gettimeofday
3811 check_func  inet_aton $network_extralibs
3812 check_func  isatty
3813 check_func  localtime_r
3814 check_func  ${malloc_prefix}memalign            && enable memalign
3815 check_func  mkstemp
3816 check_func  mmap
3817 check_func  mprotect
3818 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3819 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3820 check_func  setrlimit
3821 check_func  strerror_r
3822 check_func  sched_getaffinity
3823 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3824 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3825 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3826 check_func  sysconf
3827 check_func  sysctl
3828 check_func  usleep
3829 check_func_headers conio.h kbhit
3830 check_func_headers windows.h PeekNamedPipe
3831 check_func_headers io.h setmode
3832 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3833 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3834 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3835 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3836 check_func_headers windows.h GetProcessAffinityMask
3837 check_func_headers windows.h GetProcessTimes
3838 check_func_headers windows.h GetSystemTimeAsFileTime
3839 check_func_headers windows.h MapViewOfFile
3840 check_func_headers windows.h SetConsoleTextAttribute
3841 check_func_headers windows.h Sleep
3842 check_func_headers windows.h VirtualAlloc
3843 check_func_headers glob.h glob
3844
3845 check_header direct.h
3846 check_header dlfcn.h
3847 check_header dxva.h
3848 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3849 check_header io.h
3850 check_header libcrystalhd/libcrystalhd_if.h
3851 check_header malloc.h
3852 check_header poll.h
3853 check_header sys/mman.h
3854 check_header sys/param.h
3855 check_header sys/resource.h
3856 check_header sys/select.h
3857 check_header sys/time.h
3858 check_header termios.h
3859 check_header unistd.h
3860 check_header vdpau/vdpau.h
3861 check_header vdpau/vdpau_x11.h
3862 check_header VideoDecodeAcceleration/VDADecoder.h
3863 check_header windows.h
3864 check_header X11/extensions/XvMClib.h
3865 check_header asm/types.h
3866
3867 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3868 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3869
3870 if ! disabled w32threads && ! enabled pthreads; then
3871     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3872 fi
3873
3874 # check for some common methods of building with pthread support
3875 # do this before the optional library checks as some of them require pthreads
3876 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3877     enable pthreads
3878     if check_func pthread_create; then
3879         :
3880     elif check_func pthread_create -pthread; then
3881         add_cflags -pthread
3882         add_extralibs -pthread
3883     elif check_func pthread_create -pthreads; then
3884         add_cflags -pthreads
3885         add_extralibs -pthreads
3886     elif check_func pthread_create -lpthreadGC2; then
3887         add_extralibs -lpthreadGC2
3888     elif ! check_lib pthread.h pthread_create -lpthread; then
3889         disable pthreads
3890     fi
3891 fi
3892
3893 for thread in $THREADS_LIST; do
3894     if enabled $thread; then
3895         test -n "$thread_type" &&
3896             die "ERROR: Only one thread type must be selected." ||
3897             thread_type="$thread"
3898     fi
3899 done
3900
3901 if enabled pthreads; then
3902   check_func pthread_cancel
3903 fi
3904
3905 check_lib math.h sin -lm && LIBM="-lm"
3906 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3907 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3908
3909 atan2f_args=2
3910 ldexpf_args=2
3911 powf_args=2
3912
3913 for func in $MATH_FUNCS; do
3914     eval check_mathfunc $func \${${func}_args:-1}
3915 done
3916
3917 # these are off by default, so fail if requested and not available
3918 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3919 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3920 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3921 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3922 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3923 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3924 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3925 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3926 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3927                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3928                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3929 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3930 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3931 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3932 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
3933 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3934 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3935 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3936                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3937                         done || die "ERROR: libgsm not found"; }
3938 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3939 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3940 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3941 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3942 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3943 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3944 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3945 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3946                          check_lib openjpeg.h opj_version -lopenjpeg ||
3947                          die "ERROR: libopenjpeg not found"; }
3948 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3949 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3950 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3951 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3952 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3953 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3954 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3955     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3956     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3957 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3958 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3959                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3960                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3961 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3962 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3963 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3964 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3965 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3966 enabled libvpx     && {
3967     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3968                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3969     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3970                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3971     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3972     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3973 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3974                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3975                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3976 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3977 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3978 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3979                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3980                         die "ERROR: openal not found"; } &&
3981                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3982                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3983 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3984                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3985                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3986                         die "ERROR: openssl not found"; }
3987
3988 if enabled gnutls; then
3989     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3990     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3991 fi
3992
3993 # libdc1394 check
3994 if enabled libdc1394; then
3995     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3996         enable libdc1394_2; } ||
3997     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3998         enable libdc1394_1; } ||
3999     die "ERROR: No version of libdc1394 found "
4000 fi
4001
4002 SDL_CONFIG="${cross_prefix}sdl-config"
4003 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4004     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4005     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4006     enable sdl
4007 else
4008   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4009     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4010     sdl_libs=$("${SDL_CONFIG}" --libs)
4011     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4012     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4013     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4014     enable sdl
4015   fi
4016 fi
4017 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4018
4019 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4020 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4021 perl --version > /dev/null 2>&1 && enable perl || disable perl
4022 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4023 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4024
4025 check_header linux/fb.h
4026 check_header linux/videodev.h
4027 check_header linux/videodev2.h
4028 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4029
4030 check_header sys/videoio.h
4031
4032 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4033 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4034 # w32api 3.12 had it defined wrong
4035 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4036
4037 check_type "dshow.h" IBaseFilter
4038
4039 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4040 { check_header dev/bktr/ioctl_meteor.h &&
4041   check_header dev/bktr/ioctl_bt848.h; } ||
4042 { check_header machine/ioctl_meteor.h &&
4043   check_header machine/ioctl_bt848.h; } ||
4044 { check_header dev/video/meteor/ioctl_meteor.h &&
4045   check_header dev/video/bktr/ioctl_bt848.h; } ||
4046 check_header dev/ic/bt8xx.h
4047
4048 check_header sndio.h
4049 if check_struct sys/soundcard.h audio_buf_info bytes; then
4050     enable_safe sys/soundcard.h
4051 else
4052     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4053     #include <sys/soundcard.h>
4054     audio_buf_info abc;
4055 EOF
4056 fi
4057 check_header soundcard.h
4058
4059 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4060
4061 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4062     check_func jack_port_get_latency_range -ljack
4063
4064 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4065
4066 if enabled libcdio; then
4067     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4068 fi
4069
4070 enabled x11grab                                           &&
4071 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4072 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4073 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4074
4075 if ! disabled vaapi; then
4076     check_lib va/va.h vaInitialize -lva && {
4077         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4078         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4079     } || disable vaapi
4080 fi
4081
4082 enabled vdpau &&
4083     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4084     disable vdpau
4085
4086 # Funny iconv installations are not unusual, so check it after all flags have been set
4087 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4088
4089 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4090 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4091 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4092
4093 # add some useful compiler flags if supported
4094 check_cflags -Wdeclaration-after-statement
4095 check_cflags -Wall
4096 check_cflags -Wno-parentheses
4097 check_cflags -Wno-switch
4098 check_cflags -Wno-format-zero-length
4099 check_cflags -Wdisabled-optimization
4100 check_cflags -Wpointer-arith
4101 check_cflags -Wredundant-decls
4102 check_cflags -Wno-pointer-sign
4103 check_cflags -Wwrite-strings
4104 check_cflags -Wtype-limits
4105 check_cflags -Wundef
4106 check_cflags -Wmissing-prototypes
4107 check_cflags -Wno-pointer-to-int-cast
4108 check_cflags -Wstrict-prototypes
4109 enabled extra_warnings && check_cflags -Winline
4110
4111 # add some linker flags
4112 check_ldflags -Wl,--warn-common
4113 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4114 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4115
4116 enabled xmm_clobber_test &&
4117     check_ldflags -Wl,--wrap,avcodec_open2              \
4118                   -Wl,--wrap,avcodec_decode_audio4      \
4119                   -Wl,--wrap,avcodec_decode_video2      \
4120                   -Wl,--wrap,avcodec_decode_subtitle2   \
4121                   -Wl,--wrap,avcodec_encode_audio2      \
4122                   -Wl,--wrap,avcodec_encode_video       \
4123                   -Wl,--wrap,avcodec_encode_subtitle    \
4124                   -Wl,--wrap,sws_scale ||
4125     disable xmm_clobber_test
4126
4127 echo "X{};" > $TMPV
4128 if test_ldflags -Wl,--version-script,$TMPV; then
4129     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4130     check_cc <<EOF && enable symver_asm_label
4131 void ff_foo(void) __asm__ ("av_foo@VERSION");
4132 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4133 EOF
4134     check_cc <<EOF && enable symver_gnu_asm
4135 __asm__(".symver ff_foo,av_foo@VERSION");
4136 void ff_foo(void) {}
4137 EOF
4138 fi
4139
4140 if [ -z "$optflags" ]; then
4141     if enabled small; then
4142         optflags=$cflags_size
4143     elif enabled optimizations; then
4144         optflags=$cflags_speed
4145     else
4146         optflags=$cflags_noopt
4147     fi
4148 fi
4149
4150 check_optflags(){
4151     check_cflags "$@"
4152     enabled lto && check_ldflags "$@"
4153 }
4154
4155
4156 if enabled lto; then
4157     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4158     check_cflags  -flto
4159     check_ldflags -flto $cpuflags
4160 fi
4161
4162 check_optflags $optflags
4163 check_optflags -fno-math-errno
4164 check_optflags -fno-signed-zeros
4165
4166 enabled ftrapv && check_cflags -ftrapv
4167
4168 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4169 int x;
4170 EOF
4171
4172
4173 if enabled icc; then
4174     # Just warnings, no remarks
4175     check_cflags -w1
4176     # -wd: Disable following warnings
4177     # 144, 167, 556: -Wno-pointer-sign
4178     # 188: enumerated type mixed with another type
4179     # 1292: attribute "foo" ignored
4180     # 1419: external declaration in primary source file
4181     # 10006: ignoring unknown option -fno-signed-zeros
4182     # 10148: ignoring unknown option -Wno-parentheses
4183     # 10156: ignoring option '-W'; no argument required
4184     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4185     # 11030: Warning unknown option --as-needed
4186     # 10156: ignoring option '-export'; no argument required
4187     check_ldflags -wd10156,11030
4188     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4189     enable ebp_available
4190     if enabled x86_32; then
4191         icc_version=$($cc -dumpversion)
4192         test ${icc_version%%.*} -ge 11 &&
4193             check_cflags -falign-stack=maintain-16-byte ||
4194             disable aligned_stack
4195     fi
4196 elif enabled ccc; then
4197     # disable some annoying warnings
4198     add_cflags -msg_disable bitnotint
4199     add_cflags -msg_disable mixfuncvoid
4200     add_cflags -msg_disable nonstandcast
4201     add_cflags -msg_disable unsupieee
4202 elif enabled gcc; then
4203     check_optflags -fno-tree-vectorize
4204     check_cflags -Werror=implicit-function-declaration
4205     check_cflags -Werror=missing-prototypes
4206     check_cflags -Werror=return-type
4207     check_cflags -Werror=vla
4208 elif enabled llvm_gcc; then
4209     check_cflags -mllvm -stack-alignment=16
4210 elif enabled clang; then
4211     check_cflags -mllvm -stack-alignment=16
4212     check_cflags -Qunused-arguments
4213     check_cflags -Werror=implicit-function-declaration
4214     check_cflags -Werror=missing-prototypes
4215     check_cflags -Werror=return-type
4216 elif enabled armcc; then
4217     # 2523: use of inline assembler is deprecated
4218     add_cflags -W${armcc_opt},--diag_suppress=2523
4219     add_cflags -W${armcc_opt},--diag_suppress=1207
4220     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4221     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4222     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4223     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4224 elif enabled tms470; then
4225     add_cflags -pds=824 -pds=837
4226 elif enabled pathscale; then
4227     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4228 elif enabled msvc; then
4229     enabled x86_32 && disable aligned_stack
4230 fi
4231
4232 case $target_os in
4233     osf1)
4234         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4235     ;;
4236     plan9)
4237         add_cppflags -Dmain=plan9_main
4238     ;;
4239 esac
4240
4241 enabled_any $THREADS_LIST      && enable threads
4242
4243 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4244
4245 check_deps $CONFIG_LIST       \
4246            $CONFIG_EXTRA      \
4247            $HAVE_LIST         \
4248            $ALL_COMPONENTS    \
4249
4250
4251 if test $target_os = "haiku"; then
4252     disable memalign
4253     disable posix_memalign
4254 fi
4255
4256 ! enabled_any memalign posix_memalign aligned_malloc &&
4257     enabled_any $need_memalign && enable memalign_hack
4258
4259 # add_dep lib dep
4260 # -> enable ${lib}_deps_${dep}
4261 # -> add $dep to ${lib}_deps only once
4262 add_dep() {
4263     lib=$1
4264     dep=$2
4265     enabled "${lib}_deps_${dep}" && return 0
4266     enable  "${lib}_deps_${dep}"
4267     prepend "${lib}_deps" $dep
4268 }
4269
4270 # merge deps lib components
4271 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4272 merge_deps() {
4273     lib=$1
4274     shift
4275     for comp in $*; do
4276         enabled $comp || continue
4277         eval "dep=\"\$${comp}_deps\""
4278         for d in $dep; do
4279             add_dep $lib $d
4280         done
4281     done
4282 }
4283
4284 merge_deps libavfilter $FILTER_LIST
4285
4286 echo "install prefix            $prefix"
4287 echo "source path               $source_path"
4288 echo "C compiler                $cc"
4289 echo "ARCH                      $arch ($cpu)"
4290 if test "$build_suffix" != ""; then
4291     echo "build suffix              $build_suffix"
4292 fi
4293 if test "$progs_suffix" != ""; then
4294     echo "progs suffix              $progs_suffix"
4295 fi
4296 if test "$extra_version" != ""; then
4297     echo "version string suffix     $extra_version"
4298 fi
4299 echo "big-endian                ${bigendian-no}"
4300 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4301 if enabled x86; then
4302     echo "${yasmexe}                      ${yasm-no}"
4303     echo "MMX enabled               ${mmx-no}"
4304     echo "MMXEXT enabled            ${mmxext-no}"
4305     echo "3DNow! enabled            ${amd3dnow-no}"
4306     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4307     echo "SSE enabled               ${sse-no}"
4308     echo "SSSE3 enabled             ${ssse3-no}"
4309     echo "AVX enabled               ${avx-no}"
4310     echo "FMA4 enabled              ${fma4-no}"
4311     echo "CMOV enabled              ${cmov-no}"
4312     echo "CMOV is fast              ${fast_cmov-no}"
4313     echo "EBX available             ${ebx_available-no}"
4314     echo "EBP available             ${ebp_available-no}"
4315 fi
4316 if enabled arm; then
4317     echo "ARMv5TE enabled           ${armv5te-no}"
4318     echo "ARMv6 enabled             ${armv6-no}"
4319     echo "ARMv6T2 enabled           ${armv6t2-no}"
4320     echo "VFP enabled               ${vfp-no}"
4321     echo "NEON enabled              ${neon-no}"
4322     echo "THUMB enabled             ${thumb-no}"
4323 fi
4324 if enabled mips; then
4325     echo "MIPS FPU enabled          ${mipsfpu-no}"
4326     echo "MIPS32R2 enabled          ${mips32r2-no}"
4327     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4328     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4329 fi
4330 if enabled ppc; then
4331     echo "AltiVec enabled           ${altivec-no}"
4332     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4333     echo "dcbzl available           ${dcbzl-no}"
4334 fi
4335 if enabled sparc; then
4336     echo "VIS enabled               ${vis-no}"
4337 fi
4338 echo "debug symbols             ${debug-no}"
4339 echo "strip symbols             ${stripping-no}"
4340 echo "optimize for size         ${small-no}"
4341 echo "optimizations             ${optimizations-no}"
4342 echo "static                    ${static-no}"
4343 echo "shared                    ${shared-no}"
4344 echo "postprocessing support    ${postproc-no}"
4345 echo "new filter support        ${avfilter-no}"
4346 echo "network support           ${network-no}"
4347 echo "threading support         ${thread_type-no}"
4348 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4349 echo "SDL support               ${sdl-no}"
4350 echo "texi2html enabled         ${texi2html-no}"
4351 echo "perl enabled              ${perl-no}"
4352 echo "pod2man enabled           ${pod2man-no}"
4353 echo "makeinfo enabled          ${makeinfo-no}"
4354 test -n "$random_seed" &&
4355     echo "random seed               ${random_seed}"
4356 echo
4357
4358 echo "External libraries:"
4359 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4360 echo
4361
4362 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4363     echo "Enabled ${type}s:"
4364     eval list=\$$(toupper $type)_LIST
4365     print_enabled '_*' $list | print_3_columns
4366     echo
4367 done
4368
4369 license="LGPL version 2.1 or later"
4370 if enabled nonfree; then
4371     license="nonfree and unredistributable"
4372 elif enabled gplv3; then
4373     license="GPL version 3 or later"
4374 elif enabled lgplv3; then
4375     license="LGPL version 3 or later"
4376 elif enabled gpl; then
4377     license="GPL version 2 or later"
4378 fi
4379
4380 echo "License: $license"
4381
4382 echo "Creating config.mak and config.h..."
4383
4384 test -e Makefile || $ln_s "$source_path/Makefile" .
4385
4386 enabled stripping || strip="echo skipping strip"
4387
4388 config_files="$TMPH config.mak"
4389
4390 cat > config.mak <<EOF
4391 # Automatically generated by configure - do not modify!
4392 ifndef FFMPEG_CONFIG_MAK
4393 FFMPEG_CONFIG_MAK=1
4394 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4395 prefix=$prefix
4396 LIBDIR=\$(DESTDIR)$libdir
4397 SHLIBDIR=\$(DESTDIR)$shlibdir
4398 INCDIR=\$(DESTDIR)$incdir
4399 BINDIR=\$(DESTDIR)$bindir
4400 DATADIR=\$(DESTDIR)$datadir
4401 MANDIR=\$(DESTDIR)$mandir
4402 SRC_PATH=$source_path
4403 ifndef MAIN_MAKEFILE
4404 SRC_PATH:=\$(SRC_PATH:.%=..%)
4405 endif
4406 CC_IDENT=$cc_ident
4407 ARCH=$arch
4408 CC=$cc
4409 CXX=$cxx
4410 AS=$as
4411 LD=$ld
4412 DEPCC=$dep_cc
4413 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4414 DEPAS=$as
4415 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4416 YASM=$yasmexe
4417 DEPYASM=$yasmexe
4418 AR=$ar
4419 ARFLAGS=$arflags
4420 AR_O=$ar_o
4421 RANLIB=$ranlib
4422 CP=cp -p
4423 LN_S=$ln_s
4424 STRIP=$strip
4425 CPPFLAGS=$CPPFLAGS
4426 CFLAGS=$CFLAGS
4427 CXXFLAGS=$CXXFLAGS
4428 ASFLAGS=$ASFLAGS
4429 AS_C=$AS_C
4430 AS_O=$AS_O
4431 CC_C=$CC_C
4432 CC_E=$CC_E
4433 CC_O=$CC_O
4434 CXX_C=$CXX_C
4435 CXX_O=$CXX_O
4436 LD_O=$LD_O
4437 LD_LIB=$LD_LIB
4438 LD_PATH=$LD_PATH
4439 DLLTOOL=$dlltool
4440 LDFLAGS=$LDFLAGS
4441 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4442 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4443 YASMFLAGS=$YASMFLAGS
4444 BUILDSUF=$build_suffix
4445 PROGSSUF=$progs_suffix
4446 FULLNAME=$FULLNAME
4447 LIBPREF=$LIBPREF
4448 LIBSUF=$LIBSUF
4449 LIBNAME=$LIBNAME
4450 SLIBPREF=$SLIBPREF
4451 SLIBSUF=$SLIBSUF
4452 EXESUF=$EXESUF
4453 EXTRA_VERSION=$extra_version
4454 CCDEP=$CCDEP
4455 CXXDEP=$CXXDEP
4456 CCDEP_FLAGS=$CCDEP_FLAGS
4457 ASDEP=$ASDEP
4458 ASDEP_FLAGS=$ASDEP_FLAGS
4459 CC_DEPFLAGS=$CC_DEPFLAGS
4460 AS_DEPFLAGS=$AS_DEPFLAGS
4461 HOSTCC=$host_cc
4462 HOSTLD=$host_ld
4463 HOSTCFLAGS=$host_cflags
4464 HOSTCPPFLAGS=$host_cppflags
4465 HOSTEXESUF=$HOSTEXESUF
4466 HOSTLDFLAGS=$host_ldflags
4467 HOSTLIBS=$host_libs
4468 DEPHOSTCC=$host_cc
4469 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4470 HOSTCCDEP=$HOSTCCDEP
4471 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4472 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4473 HOSTCC_C=$HOSTCC_C
4474 HOSTCC_O=$HOSTCC_O
4475 HOSTLD_O=$HOSTLD_O
4476 TARGET_EXEC=$target_exec
4477 TARGET_PATH=$target_path
4478 LIBS-ffplay=$sdl_libs
4479 CFLAGS-ffplay=$sdl_cflags
4480 ZLIB=$($ldflags_filter -lz)
4481 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4482 EXTRALIBS=$extralibs
4483 COMPAT_OBJS=$compat_objs
4484 EXEOBJS=$exeobjs
4485 INSTALL=$install
4486 LIBTARGET=${LIBTARGET}
4487 SLIBNAME=${SLIBNAME}
4488 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4489 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4490 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4491 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4492 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4493 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4494 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4495 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4496 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4497 NOREDZONE_FLAGS=$noredzone_flags
4498 EOF
4499
4500 get_version(){
4501     lcname=lib${1}
4502     name=$(toupper $lcname)
4503     file=$source_path/$lcname/version.h
4504     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4505     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4506     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4507     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4508     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4509 }
4510
4511 map 'get_version $v' $LIBRARY_LIST
4512
4513 cat > $TMPH <<EOF
4514 /* Automatically generated by configure - do not modify! */
4515 #ifndef FFMPEG_CONFIG_H
4516 #define FFMPEG_CONFIG_H
4517 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4518 #define FFMPEG_LICENSE "$(c_escape $license)"
4519 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4520 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4521 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4522 #define av_restrict $_restrict
4523 #define EXTERN_PREFIX "${extern_prefix}"
4524 #define EXTERN_ASM ${extern_prefix}
4525 #define SLIBSUF "$SLIBSUF"
4526 #define HAVE_MMX2 HAVE_MMXEXT
4527 EOF
4528
4529 test -n "$assert_level" &&
4530     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4531
4532 test -n "$malloc_prefix" &&
4533     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4534
4535 if enabled yasm; then
4536     append config_files $TMPASM
4537     printf '' >$TMPASM
4538 fi
4539
4540 print_config ARCH_   "$config_files" $ARCH_LIST
4541 print_config HAVE_   "$config_files" $HAVE_LIST
4542 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4543                                      $CONFIG_EXTRA      \
4544                                      $ALL_COMPONENTS    \
4545
4546 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4547 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4548
4549 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4550 cp_if_changed $TMPH config.h
4551 touch .config
4552
4553 enabled yasm && cp_if_changed $TMPASM config.asm
4554
4555 cat > $TMPH <<EOF
4556 /* Generated by ffconf */
4557 #ifndef AVUTIL_AVCONFIG_H
4558 #define AVUTIL_AVCONFIG_H
4559 EOF
4560
4561 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4562
4563 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4564
4565 cp_if_changed $TMPH libavutil/avconfig.h
4566
4567 if test -n "$WARNINGS"; then
4568     printf "\n$WARNINGS"
4569     enabled fatal_warnings && exit 1
4570 fi
4571
4572 # build pkg-config files
4573
4574 pkgconfig_generate(){
4575     name=$1
4576     shortname=${name#lib}${build_suffix}
4577     comment=$2
4578     version=$3
4579     libs=$4
4580     requires=$5
4581     enabled ${name#lib} || return 0
4582     mkdir -p $name
4583     cat <<EOF > $name/$name${build_suffix}.pc
4584 prefix=$prefix
4585 exec_prefix=\${prefix}
4586 libdir=$libdir
4587 includedir=$incdir
4588
4589 Name: $name
4590 Description: $comment
4591 Version: $version
4592 Requires: $(enabled shared || echo $requires)
4593 Requires.private: $(enabled shared && echo $requires)
4594 Conflicts:
4595 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4596 Libs.private: $(enabled shared && echo $libs)
4597 Cflags: -I\${includedir}
4598 EOF
4599
4600 mkdir -p doc/examples/pc-uninstalled
4601 includedir=${source_path}
4602 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4603     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4604 prefix=
4605 exec_prefix=
4606 libdir=\${pcfiledir}/../../../$name
4607 includedir=${includedir}
4608
4609 Name: $name
4610 Description: $comment
4611 Version: $version
4612 Requires: $requires
4613 Conflicts:
4614 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4615 Cflags: -I\${includedir}
4616 EOF
4617 }
4618
4619 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4620 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4621 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4622 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4623 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4624 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4625 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4626 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4627
4628 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4629 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4630
4631 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4632 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4633 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4634 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4635 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4636 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4637 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4638 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4639 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4640
4641 fix_ffmpeg_remote(){
4642     git_remote_from=$1
4643     git_remote_to=$2
4644     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4645     if [ "$fixme_remote" != "" ]; then
4646         echolog "
4647 Outdated domain in git config, the official domain for ffmpeg git is since
4648 November 2011, source.ffmpeg.org, both the old and the new point to the same
4649 repository and server. To update it enter the following commands:
4650 "
4651         for remote in $fixme_remote; do
4652             echolog "git remote set-url $remote $git_remote_to"
4653         done
4654     fi
4655 }
4656
4657 if test -f "$source_path/.git/config"; then
4658     remote_from=git.videolan.org
4659     remote_to=source.ffmpeg.org
4660     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4661     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4662 fi