Merge commit '684e3d2e1ce96625eeef63f2564aab66f6715d05'
[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     huffman
1522     lgplv3
1523     lpc
1524     mpegaudio
1525     mpegaudiodsp
1526     mpegvideo
1527     mpegvideoenc
1528     nettle
1529     rangecoder
1530     rtpdec
1531     rtpenc_chain
1532     sinewin
1533     videodsp
1534     vp3dsp
1535 "
1536
1537 CMDLINE_SELECT="
1538     $ARCH_EXT_LIST
1539     $CONFIG_LIST
1540     $HAVE_LIST_CMDLINE
1541     $THREADS_LIST
1542     asm
1543     coverage
1544     cross_compile
1545     debug
1546     extra_warnings
1547     logging
1548     lto
1549     optimizations
1550     stripping
1551 "
1552
1553 PATHS_LIST='
1554     bindir
1555     datadir
1556     incdir
1557     libdir
1558     mandir
1559     prefix
1560     shlibdir
1561 '
1562
1563 CMDLINE_SET="
1564     $PATHS_LIST
1565     ar
1566     arch
1567     as
1568     assert_level
1569     build_suffix
1570     cc
1571     cpu
1572     cross_prefix
1573     cxx
1574     dep_cc
1575     extra_version
1576     host_cc
1577     host_cflags
1578     host_ld
1579     host_ldflags
1580     host_libs
1581     host_os
1582     install
1583     ld
1584     logfile
1585     malloc_prefix
1586     nm
1587     optflags
1588     pkg_config
1589     progs_suffix
1590     random_seed
1591     samples
1592     strip
1593     sysinclude
1594     sysroot
1595     target_exec
1596     target_os
1597     target_path
1598     toolchain
1599     valgrind
1600     yasmexe
1601 "
1602
1603 CMDLINE_APPEND="
1604     extra_cflags
1605     extra_cxxflags
1606     host_cppflags
1607 "
1608
1609 # code dependency declarations
1610
1611 # architecture extensions
1612
1613 armv5te_deps="arm"
1614 armv6_deps="arm"
1615 armv6t2_deps="arm"
1616 neon_deps="arm"
1617 vfp_deps="arm"
1618 vfpv3_deps="vfp"
1619
1620 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1621
1622 mipsfpu_deps="mips"
1623 mips32r2_deps="mips"
1624 mipsdspr1_deps="mips"
1625 mipsdspr2_deps="mips"
1626
1627 altivec_deps="ppc"
1628 ppc4xx_deps="ppc"
1629
1630 vis_deps="sparc"
1631
1632 x86_64_suggest="cmov fast_cmov"
1633
1634 amd3dnow_deps="mmx"
1635 amd3dnowext_deps="amd3dnow"
1636 mmx_deps="x86"
1637 mmxext_deps="mmx"
1638 sse_deps="mmxext"
1639 sse2_deps="sse"
1640 sse3_deps="sse2"
1641 ssse3_deps="sse3"
1642 sse4_deps="ssse3"
1643 sse42_deps="sse4"
1644 avx_deps="sse42"
1645 fma4_deps="avx"
1646
1647 mmx_external_deps="yasm"
1648 mmx_inline_deps="inline_asm"
1649 mmx_suggest="mmx_external mmx_inline"
1650
1651 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1652     eval dep=\$${ext}_deps
1653     eval ${ext}_external_deps='"${dep}_external"'
1654     eval ${ext}_inline_deps='"${dep}_inline"'
1655     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1656 done
1657
1658 aligned_stack_if_any="ppc x86"
1659 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1660 fast_clz_if_any="alpha avr32 mips ppc x86"
1661 fast_unaligned_if_any="ppc x86"
1662
1663 inline_asm_deps="!tms470"
1664 need_memalign="altivec neon sse"
1665
1666 symver_if_any="symver_asm_label symver_gnu_asm"
1667
1668 log2_deps="!msvcrt"
1669
1670 # subsystems
1671 dct_select="rdft"
1672 error_resilience_select="dsputil"
1673 mdct_select="fft"
1674 rdft_select="fft"
1675 mpegaudio_select="mpegaudiodsp"
1676 mpegaudiodsp_select="dct"
1677 mpegvideo_select="dsputil error_resilience videodsp h264chroma"
1678 mpegvideoenc_select="mpegvideo"
1679
1680 # decoders / encoders
1681 aac_decoder_select="mdct sinewin"
1682 aac_encoder_select="audio_frame_queue mdct sinewin"
1683 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1684 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1685 ac3_encoder_select="mdct ac3dsp dsputil"
1686 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1687 alac_encoder_select="lpc"
1688 als_decoder_select="dsputil"
1689 amrnb_decoder_select="lsp"
1690 amrwb_decoder_select="lsp"
1691 amv_encoder_select="aandcttables"
1692 ape_decoder_select="dsputil"
1693 asv_decoder_select="dsputil"
1694 atrac1_decoder_select="mdct sinewin"
1695 atrac3_decoder_select="mdct"
1696 bink_decoder_select="dsputil"
1697 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1698 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1699 cavs_decoder_select="dsputil golomb h264chroma mpegvideo videodsp"
1700 cllc_decoder_select="dsputil"
1701 comfortnoise_encoder_select="lpc"
1702 cook_decoder_select="dsputil mdct sinewin"
1703 cscd_decoder_select="lzo"
1704 cscd_decoder_suggest="zlib"
1705 dca_decoder_select="mdct"
1706 dirac_decoder_select="dsputil dwt golomb videodsp"
1707 dnxhd_decoder_select="dsputil"
1708 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1709 dv_decoder_select="dsputil"
1710 dxa_decoder_select="zlib"
1711 eac3_decoder_select="ac3_decoder"
1712 eac3_encoder_select="ac3_encoder"
1713 eamad_decoder_select="aandcttables dsputil mpegvideo"
1714 eatgq_decoder_select="aandcttables"
1715 eatqi_decoder_select="aandcttables mpegvideo"
1716 exr_decoder_select="zlib"
1717 ffv1_decoder_select="dsputil golomb rangecoder"
1718 ffv1_encoder_select="rangecoder"
1719 ffvhuff_encoder_select="huffman"
1720 flac_decoder_select="golomb"
1721 flac_encoder_select="dsputil golomb lpc"
1722 flashsv_decoder_select="zlib"
1723 flashsv_encoder_select="zlib"
1724 flashsv2_encoder_select="zlib"
1725 flashsv2_decoder_select="zlib"
1726 flv_decoder_select="h263_decoder"
1727 flv_encoder_select="h263_encoder"
1728 fourxm_decoder_select="dsputil"
1729 fraps_decoder_select="dsputil huffman"
1730 g729_decoder_select="dsputil"
1731 h261_decoder_select="error_resilience mpegvideo"
1732 h261_encoder_select="aandcttables mpegvideoenc"
1733 h263_decoder_select="error_resilience h263_parser mpegvideo"
1734 h263_encoder_select="aandcttables mpegvideoenc"
1735 h263i_decoder_select="h263_decoder"
1736 h263p_encoder_select="h263_encoder"
1737 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1738 huffyuv_decoder_select="dsputil"
1739 huffyuv_encoder_select="huffman"
1740 iac_decoder_select="fft mdct sinewin"
1741 imc_decoder_select="dsputil fft mdct sinewin"
1742 indeo3_decoder_select="dsputil"
1743 interplayvideo_decoder_select="dsputil"
1744 jpegls_decoder_select="golomb"
1745 jpegls_encoder_select="golomb"
1746 jv_decoder_select="dsputil"
1747 lagarith_decoder_select="dsputil"
1748 ljpeg_encoder_select="aandcttables mpegvideoenc"
1749 loco_decoder_select="golomb"
1750 mdec_decoder_select="dsputil error_resilience mpegvideo"
1751 mimic_decoder_select="dsputil"
1752 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1753 mlp_decoder_select="dsputil mlp_parser"
1754 motionpixels_decoder_select="dsputil"
1755 mp1_decoder_select="mpegaudio"
1756 mp1float_decoder_select="mpegaudio"
1757 mp2_decoder_select="mpegaudio"
1758 mp2float_decoder_select="mpegaudio"
1759 mp3_decoder_select="mpegaudio"
1760 mp3adu_decoder_select="mpegaudio"
1761 mp3adufloat_decoder_select="mpegaudio"
1762 mp3float_decoder_select="mpegaudio"
1763 mp3on4_decoder_select="mpegaudio"
1764 mp3on4float_decoder_select="mpegaudio"
1765 mpc7_decoder_select="dsputil mpegaudiodsp"
1766 mpc8_decoder_select="dsputil mpegaudiodsp"
1767 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1768 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1769 mpeg1video_decoder_select="error_resilience mpegvideo"
1770 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1771 mpeg2video_decoder_select="error_resilience mpegvideo"
1772 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1773 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1774 mpeg4_encoder_select="h263_encoder"
1775 msmpeg4v1_decoder_select="h263_decoder"
1776 msmpeg4v1_encoder_select="h263_encoder"
1777 msmpeg4v2_decoder_select="h263_decoder"
1778 msmpeg4v2_encoder_select="h263_encoder"
1779 msmpeg4v3_decoder_select="h263_decoder"
1780 msmpeg4v3_encoder_select="h263_encoder"
1781 mss2_decoder_select="error_resilience vc1_decoder"
1782 nellymoser_decoder_select="mdct sinewin"
1783 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1784 nuv_decoder_select="dsputil lzo"
1785 png_decoder_select="zlib"
1786 png_encoder_select="dsputil zlib"
1787 prores_decoder_select="dsputil"
1788 qcelp_decoder_select="lsp"
1789 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1790 ra_144_encoder_select="audio_frame_queue lpc"
1791 ralf_decoder_select="golomb"
1792 rtjpeg_decoder_select="dsputil"
1793 rv10_decoder_select="error_resilience h263_decoder"
1794 rv10_encoder_select="h263_encoder"
1795 rv20_decoder_select="error_resilience h263_decoder"
1796 rv20_encoder_select="h263_encoder"
1797 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1798 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1799 shorten_decoder_select="golomb"
1800 sipr_decoder_select="lsp"
1801 snow_decoder_select="dsputil dwt h264qpel rangecoder"
1802 snow_encoder_select="aandcttables dsputil dwt h264qpel error_resilience mpegvideoenc rangecoder"
1803 sonic_decoder_select="golomb"
1804 sonic_encoder_select="golomb"
1805 sonic_ls_encoder_select="golomb"
1806 svq1_decoder_select="dsputil mpegvideo"
1807 svq1_encoder_select="aandcttables dsputil mpegvideoenc"
1808 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1809 svq3_decoder_suggest="zlib"
1810 tak_decoder_select="dsputil"
1811 theora_decoder_select="vp3_decoder"
1812 tiff_decoder_suggest="zlib"
1813 tiff_encoder_suggest="zlib"
1814 truehd_decoder_select="mlp_parser"
1815 truemotion2_decoder_select="dsputil"
1816 tscc_decoder_select="zlib"
1817 twinvq_decoder_select="mdct lsp sinewin"
1818 utvideo_decoder_select="dsputil"
1819 utvideo_encoder_select="huffman"
1820 vble_decoder_select="dsputil"
1821 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1822 vc1image_decoder_select="vc1_decoder"
1823 vorbis_decoder_select="mdct"
1824 vorbis_encoder_select="mdct"
1825 vp3_decoder_select="dsputil vp3dsp videodsp"
1826 vp5_decoder_select="dsputil h264chroma videodsp vp3dsp"
1827 vp6_decoder_select="dsputil h264chroma huffman videodsp vp3dsp"
1828 vp6a_decoder_select="vp6_decoder"
1829 vp6f_decoder_select="vp6_decoder"
1830 vp8_decoder_select="h264pred videodsp"
1831 wmapro_decoder_select="mdct sinewin"
1832 wmav1_decoder_select="mdct sinewin"
1833 wmav1_encoder_select="mdct sinewin"
1834 wmav2_decoder_select="mdct sinewin"
1835 wmav2_encoder_select="mdct sinewin"
1836 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1837 wmv1_decoder_select="h263_decoder"
1838 wmv1_encoder_select="h263_encoder"
1839 wmv2_decoder_select="h263_decoder videodsp"
1840 wmv2_encoder_select="h263_encoder"
1841 wmv3_decoder_select="vc1_decoder"
1842 wmv3image_decoder_select="wmv3_decoder"
1843 zerocodec_decoder_select="zlib"
1844 zlib_decoder_select="zlib"
1845 zlib_encoder_select="zlib"
1846 zmbv_decoder_select="zlib"
1847 zmbv_encoder_select="zlib"
1848
1849 # hardware accelerators
1850 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1851 dxva2_deps="dxva2api_h"
1852 vaapi_deps="va_va_h"
1853 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1854 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1855 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1856
1857 h263_vaapi_hwaccel_deps="vaapi"
1858 h263_vaapi_hwaccel_select="h263_decoder"
1859 h263_vdpau_hwaccel_deps="vdpau"
1860 h263_vdpau_hwaccel_select="h263_decoder"
1861 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1862 h264_dxva2_hwaccel_deps="dxva2"
1863 h264_dxva2_hwaccel_select="h264_decoder"
1864 h264_vaapi_hwaccel_deps="vaapi"
1865 h264_vaapi_hwaccel_select="h264_decoder"
1866 h264_vda_decoder_deps="vda"
1867 h264_vda_decoder_select="h264_decoder"
1868 h264_vda_hwaccel_deps="vda"
1869 h264_vda_hwaccel_select="h264_decoder"
1870 h264_vdpau_decoder_deps="vdpau"
1871 h264_vdpau_decoder_select="h264_decoder"
1872 h264_vdpau_hwaccel_deps="vdpau"
1873 h264_vdpau_hwaccel_select="h264_decoder"
1874 mpeg_vdpau_decoder_deps="vdpau"
1875 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1876 mpeg1_vdpau_decoder_deps="vdpau"
1877 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1878 mpeg1_vdpau_hwaccel_deps="vdpau"
1879 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1880 mpeg2_crystalhd_decoder_select="crystalhd"
1881 mpeg2_dxva2_hwaccel_deps="dxva2"
1882 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1883 mpeg2_vaapi_hwaccel_deps="vaapi"
1884 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1885 mpeg2_vdpau_hwaccel_deps="vdpau"
1886 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1887 mpeg4_crystalhd_decoder_select="crystalhd"
1888 mpeg4_vaapi_hwaccel_deps="vaapi"
1889 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1890 mpeg4_vdpau_decoder_deps="vdpau"
1891 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1892 mpeg4_vdpau_hwaccel_deps="vdpau"
1893 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1894 msmpeg4_crystalhd_decoder_select="crystalhd"
1895 vc1_crystalhd_decoder_select="crystalhd"
1896 vc1_dxva2_hwaccel_deps="dxva2"
1897 vc1_dxva2_hwaccel_select="vc1_decoder"
1898 vc1_vaapi_hwaccel_deps="vaapi"
1899 vc1_vaapi_hwaccel_select="vc1_decoder"
1900 vc1_vdpau_decoder_deps="vdpau"
1901 vc1_vdpau_decoder_select="vc1_decoder"
1902 vc1_vdpau_hwaccel_deps="vdpau"
1903 vc1_vdpau_hwaccel_select="vc1_decoder"
1904 wmv3_crystalhd_decoder_select="crystalhd"
1905 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1906 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1907 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1908 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1909
1910 # parsers
1911 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1912 mpeg4video_parser_select="error_resilience mpegvideo"
1913 mpegvideo_parser_select="error_resilience mpegvideo"
1914 vc1_parser_select="mpegvideo"
1915
1916 # external libraries
1917 libaacplus_encoder_deps="libaacplus"
1918 libcelt_decoder_deps="libcelt"
1919 libfaac_encoder_deps="libfaac"
1920 libfaac_encoder_select="audio_frame_queue"
1921 libfdk_aac_encoder_deps="libfdk_aac"
1922 libfdk_aac_encoder_select="audio_frame_queue"
1923 libgsm_decoder_deps="libgsm"
1924 libgsm_encoder_deps="libgsm"
1925 libgsm_ms_decoder_deps="libgsm"
1926 libgsm_ms_encoder_deps="libgsm"
1927 libilbc_decoder_deps="libilbc"
1928 libilbc_encoder_deps="libilbc"
1929 libmodplug_demuxer_deps="libmodplug"
1930 libmp3lame_encoder_deps="libmp3lame"
1931 libmp3lame_encoder_select="audio_frame_queue"
1932 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1933 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1934 libopencore_amrnb_encoder_select="audio_frame_queue"
1935 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1936 libopenjpeg_decoder_deps="libopenjpeg"
1937 libopenjpeg_encoder_deps="libopenjpeg"
1938 libopus_decoder_deps="libopus"
1939 libopus_encoder_deps="libopus"
1940 libopus_encoder_select="audio_frame_queue"
1941 libschroedinger_decoder_deps="libschroedinger"
1942 libschroedinger_encoder_deps="libschroedinger"
1943 libspeex_decoder_deps="libspeex"
1944 libspeex_encoder_deps="libspeex"
1945 libspeex_encoder_select="audio_frame_queue"
1946 libstagefright_h264_decoder_deps="libstagefright_h264"
1947 libtheora_encoder_deps="libtheora"
1948 libtwolame_encoder_deps="libtwolame"
1949 libvo_aacenc_encoder_deps="libvo_aacenc"
1950 libvo_aacenc_encoder_select="audio_frame_queue"
1951 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1952 libvorbis_decoder_deps="libvorbis"
1953 libvorbis_encoder_deps="libvorbis"
1954 libvorbis_encoder_select="audio_frame_queue"
1955 libvpx_vp8_decoder_deps="libvpx"
1956 libvpx_vp8_encoder_deps="libvpx"
1957 libvpx_vp9_decoder_deps="libvpx"
1958 libvpx_vp9_encoder_deps="libvpx"
1959 libx264_encoder_deps="libx264"
1960 libx264rgb_encoder_deps="libx264"
1961 libxavs_encoder_deps="libxavs"
1962 libxvid_encoder_deps="libxvid"
1963 libutvideo_decoder_deps="libutvideo"
1964 libutvideo_encoder_deps="libutvideo"
1965
1966 # demuxers / muxers
1967 ac3_demuxer_select="ac3_parser"
1968 asf_stream_muxer_select="asf_muxer"
1969 avisynth_demuxer_deps="avisynth"
1970 dirac_demuxer_select="dirac_parser"
1971 dts_demuxer_select="dca_parser"
1972 dtshd_demuxer_select="dca_parser"
1973 eac3_demuxer_select="ac3_parser"
1974 f4v_muxer_select="mov_muxer"
1975 flac_demuxer_select="flac_parser"
1976 ipod_muxer_select="mov_muxer"
1977 ismv_muxer_select="mov_muxer"
1978 libnut_demuxer_deps="libnut"
1979 libnut_muxer_deps="libnut"
1980 matroska_audio_muxer_select="matroska_muxer"
1981 matroska_demuxer_suggest="bzlib lzo zlib"
1982 mov_demuxer_suggest="zlib"
1983 mov_muxer_select="rtpenc_chain"
1984 mp3_demuxer_select="mpegaudio_parser"
1985 mp4_muxer_select="mov_muxer"
1986 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1987 mpegtsraw_demuxer_select="mpegts_demuxer"
1988 mxf_d10_muxer_select="mxf_muxer"
1989 ogg_demuxer_select="golomb"
1990 psp_muxer_select="mov_muxer"
1991 rtp_demuxer_select="sdp_demuxer"
1992 rtp_muxer_select="mpegvideo"
1993 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1994 rtsp_demuxer_select="http_protocol rtpdec"
1995 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1996 sap_demuxer_select="sdp_demuxer"
1997 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1998 sdp_demuxer_select="rtpdec"
1999 smoothstreaming_muxer_select="ismv_muxer"
2000 spdif_muxer_select="aac_parser"
2001 tak_demuxer_select="tak_parser"
2002 tg2_muxer_select="mov_muxer"
2003 tgp_muxer_select="mov_muxer"
2004 vobsub_demuxer_select="mpegps_demuxer"
2005 w64_demuxer_deps="wav_demuxer"
2006 w64_muxer_deps="wav_muxer"
2007
2008 # indevs / outdevs
2009 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2010 alsa_outdev_deps="alsa_asoundlib_h"
2011 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2012 caca_outdev_deps="libcaca"
2013 dshow_indev_deps="IBaseFilter"
2014 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2015 dv1394_indev_deps="dv1394 dv_demuxer"
2016 fbdev_indev_deps="linux_fb_h"
2017 iec61883_indev_deps="libiec61883"
2018 jack_indev_deps="jack_jack_h sem_timedwait"
2019 lavfi_indev_deps="avfilter"
2020 libcdio_indev_deps="libcdio"
2021 libdc1394_indev_deps="libdc1394"
2022 libv4l2_indev_deps="libv4l2"
2023 openal_indev_deps="openal"
2024 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2025 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2026 pulse_indev_deps="libpulse"
2027 sdl_outdev_deps="sdl"
2028 sndio_indev_deps="sndio_h"
2029 sndio_outdev_deps="sndio_h"
2030 v4l_indev_deps="linux_videodev_h"
2031 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2032 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2033 vfwcap_indev_extralibs="-lavicap32"
2034 x11grab_indev_deps="x11grab"
2035
2036 # protocols
2037 bluray_protocol_deps="libbluray"
2038 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2039 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2040 ffrtmpcrypt_protocol_select="tcp_protocol"
2041 ffrtmphttp_protocol_deps="!librtmp_protocol"
2042 ffrtmphttp_protocol_select="http_protocol"
2043 gopher_protocol_select="network"
2044 httpproxy_protocol_select="tcp_protocol"
2045 http_protocol_select="tcp_protocol"
2046 https_protocol_select="tls_protocol"
2047 librtmp_protocol_deps="librtmp"
2048 librtmpe_protocol_deps="librtmp"
2049 librtmps_protocol_deps="librtmp"
2050 librtmpt_protocol_deps="librtmp"
2051 librtmpte_protocol_deps="librtmp"
2052 mmsh_protocol_select="http_protocol"
2053 mmst_protocol_select="network"
2054 rtmp_protocol_deps="!librtmp_protocol"
2055 rtmp_protocol_select="tcp_protocol"
2056 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2057 rtmps_protocol_deps="!librtmp_protocol"
2058 rtmps_protocol_select="tls_protocol"
2059 rtmpt_protocol_select="ffrtmphttp_protocol"
2060 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2061 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2062 rtp_protocol_select="udp_protocol"
2063 sctp_protocol_deps="struct_sctp_event_subscribe"
2064 sctp_protocol_select="network"
2065 srtp_protocol_select="rtp_protocol"
2066 tcp_protocol_select="network"
2067 tls_protocol_deps_any="openssl gnutls"
2068 tls_protocol_select="tcp_protocol"
2069 udp_protocol_select="network"
2070
2071 # filters
2072 aconvert_filter_deps="swresample"
2073 amovie_filter_deps="avcodec avformat"
2074 aresample_filter_deps="swresample"
2075 ass_filter_deps="libass"
2076 asyncts_filter_deps="avresample"
2077 atempo_filter_deps="avcodec rdft"
2078 blackframe_filter_deps="gpl"
2079 boxblur_filter_deps="gpl"
2080 colormatrix_filter_deps="gpl"
2081 cropdetect_filter_deps="gpl"
2082 decimate_filter_deps="gpl avcodec"
2083 delogo_filter_deps="gpl"
2084 deshake_filter_deps="avcodec"
2085 drawtext_filter_deps="libfreetype"
2086 ebur128_filter_deps="gpl"
2087 flite_filter_deps="libflite"
2088 frei0r_filter_deps="frei0r dlopen"
2089 frei0r_filter_extralibs='$ldl'
2090 frei0r_src_filter_deps="frei0r dlopen"
2091 frei0r_src_filter_extralibs='$ldl'
2092 geq_filter_deps="gpl"
2093 histeq_filter_deps="gpl"
2094 hqdn3d_filter_deps="gpl"
2095 hue_filter_deps="gpl"
2096 kerndeint_filter_deps="gpl"
2097 movie_filter_deps="avcodec avformat"
2098 mp_filter_deps="gpl avcodec swscale inline_asm"
2099 mptestsrc_filter_deps="gpl"
2100 negate_filter_deps="lut_filter"
2101 noise_filter_deps="gpl"
2102 resample_filter_deps="avresample"
2103 ocv_filter_deps="libopencv"
2104 pan_filter_deps="swresample"
2105 pp_filter_deps="gpl postproc"
2106 removelogo_filter_deps="avcodec avformat swscale"
2107 scale_filter_deps="swscale"
2108 smartblur_filter_deps="gpl swscale"
2109 showspectrum_filter_deps="avcodec rdft"
2110 stereo3d_filter_deps="gpl"
2111 subtitles_filter_deps="avformat avcodec libass"
2112 super2xsai_filter_deps="gpl"
2113 tinterlace_filter_deps="gpl"
2114 yadif_filter_deps="gpl"
2115 pixfmts_super2xsai_test_deps="super2xsai_filter"
2116 tinterlace_merge_test_deps="tinterlace_filter"
2117 tinterlace_pad_test_deps="tinterlace_filter"
2118
2119 # libraries
2120 avcodec_deps="avutil"
2121 avdevice_deps="avutil avcodec avformat"
2122 avfilter_deps="avutil"
2123 avformat_deps="avutil avcodec"
2124 avresample_deps="avutil"
2125 postproc_deps="avutil gpl"
2126 swscale_deps="avutil"
2127
2128 # programs
2129 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2130 ffmpeg_select="format_filter aformat_filter
2131                setpts_filter null_filter anull_filter"
2132 ffplay_deps="avcodec avformat swscale swresample sdl"
2133 ffplay_select="rdft crop_filter"
2134 ffprobe_deps="avcodec avformat"
2135 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2136 ffserver_extralibs='$ldl'
2137
2138 # documentation
2139 podpages_deps="perl"
2140 manpages_deps="perl pod2man"
2141 htmlpages_deps="texi2html"
2142 txtpages_deps="makeinfo"
2143 doc_deps_any="manpages htmlpages podpages txtpages"
2144
2145 # default parameters
2146
2147 logfile="config.log"
2148
2149 # installation paths
2150 prefix_default="/usr/local"
2151 bindir_default='${prefix}/bin'
2152 datadir_default='${prefix}/share/ffmpeg'
2153 incdir_default='${prefix}/include'
2154 libdir_default='${prefix}/lib'
2155 mandir_default='${prefix}/share/man'
2156 shlibdir_default="$libdir_default"
2157
2158 # toolchain
2159 ar_default="ar"
2160 cc_default="gcc"
2161 cxx_default="g++"
2162 host_cc_default="gcc"
2163 cp_f="cp -f"
2164 install="install"
2165 ln_s="ln -s -f"
2166 nm_default="nm -g"
2167 objformat="elf"
2168 pkg_config_default=pkg-config
2169 ranlib="ranlib"
2170 strip_default="strip"
2171 yasmexe_default="yasm"
2172
2173 nogas=":"
2174
2175 # machine
2176 arch_default=$(uname -m)
2177 cpu="generic"
2178
2179 # OS
2180 target_os_default=$(tolower $(uname -s))
2181 host_os=$target_os_default
2182
2183 # configurable options
2184 enable $PROGRAM_LIST
2185 enable $DOCUMENT_LIST
2186 enable $(filter_out avresample $LIBRARY_LIST)
2187 enable stripping
2188
2189 enable asm
2190 enable debug
2191 enable doc
2192 enable optimizations
2193 enable runtime_cpudetect
2194 enable safe_bitstream_reader
2195 enable static
2196 enable swscale_alpha
2197
2198 # build settings
2199 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2200 FFSERVERLDFLAGS=-Wl,-E
2201 LIBPREF="lib"
2202 LIBSUF=".a"
2203 FULLNAME='$(NAME)$(BUILDSUF)'
2204 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2205 SLIBPREF="lib"
2206 SLIBSUF=".so"
2207 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2208 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2209 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2210 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2211 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2212 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2213
2214 asflags_filter=echo
2215 cflags_filter=echo
2216 ldflags_filter=echo
2217
2218 AS_C='-c'
2219 AS_O='-o $@'
2220 CC_C='-c'
2221 CC_E='-E -o $@'
2222 CC_O='-o $@'
2223 CXX_C='-c'
2224 CXX_O='-o $@'
2225 LD_O='-o $@'
2226 LD_LIB='-l%'
2227 LD_PATH='-L'
2228 HOSTCC_C='-c'
2229 HOSTCC_O='-o $@'
2230 HOSTLD_O='-o $@'
2231
2232 host_cflags='-O3 -g'
2233 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2234 host_libs='-lm'
2235 host_cflags_filter=echo
2236 host_ldflags_filter=echo
2237
2238 target_path='$(CURDIR)'
2239
2240 # since the object filename is not given with the -MM flag, the compiler
2241 # is only able to print the basename, and we must add the path ourselves
2242 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2243 DEPFLAGS='-MM'
2244
2245 # find source path
2246 if test -f configure; then
2247     source_path=.
2248 else
2249     source_path=$(cd $(dirname "$0"); pwd)
2250     echo "$source_path" | grep -q '[[:blank:]]' &&
2251         die "Out of tree builds are impossible with whitespace in source path."
2252     test -e "$source_path/config.h" &&
2253         die "Out of tree builds are impossible with config.h in source dir."
2254 fi
2255
2256 for v in "$@"; do
2257     r=${v#*=}
2258     l=${v%"$r"}
2259     r=$(sh_quote "$r")
2260     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2261 done
2262
2263 find_things(){
2264     thing=$1
2265     pattern=$2
2266     file=$source_path/$3
2267     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2268 }
2269
2270 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2271 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2272 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2273 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2274 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2275 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2276 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2277 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2278 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2279 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2280 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2281
2282 ALL_COMPONENTS="
2283     $BSF_LIST
2284     $DECODER_LIST
2285     $DEMUXER_LIST
2286     $ENCODER_LIST
2287     $FILTER_LIST
2288     $HWACCEL_LIST
2289     $INDEV_LIST
2290     $MUXER_LIST
2291     $OUTDEV_LIST
2292     $PARSER_LIST
2293     $PROTOCOL_LIST
2294 "
2295
2296 for n in $COMPONENT_LIST; do
2297     v=$(toupper ${n%s})_LIST
2298     eval enable \$$v
2299     eval ${n}_if_any="\$$v"
2300 done
2301
2302 enable $ARCH_EXT_LIST
2303
2304 die_unknown(){
2305     echo "Unknown option \"$1\"."
2306     echo "See $0 --help for available options."
2307     exit 1
2308 }
2309
2310 print_3_columns() {
2311     cat | tr ' ' '\n' | sort | pr -r -3 -t
2312 }
2313
2314 show_list() {
2315     suffix=_$1
2316     shift
2317     echo $* | sed s/$suffix//g | print_3_columns
2318     exit 0
2319 }
2320
2321 rand_list(){
2322     IFS=', '
2323     set -- $*
2324     unset IFS
2325     for thing; do
2326         comp=${thing%:*}
2327         prob=${thing#$comp}
2328         prob=${prob#:}
2329         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2330         echo "prob ${prob:-0.5}"
2331         printf '%s\n' $comp
2332     done
2333 }
2334
2335 do_random(){
2336     action=$1
2337     shift
2338     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2339     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2340 }
2341
2342 for opt do
2343     optval="${opt#*=}"
2344     case "$opt" in
2345         --extra-ldflags=*)
2346             add_ldflags $optval
2347         ;;
2348         --extra-libs=*)
2349             add_extralibs $optval
2350         ;;
2351         --disable-devices)
2352             disable $INDEV_LIST $OUTDEV_LIST
2353         ;;
2354         --enable-debug=*)
2355             debuglevel="$optval"
2356         ;;
2357         --disable-programs)
2358             disable $PROGRAM_LIST
2359         ;;
2360         --disable-everything)
2361             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2362         ;;
2363         --disable-all)
2364             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2365             disable $LIBRARY_LIST $PROGRAM_LIST doc
2366         ;;
2367         --enable-random|--disable-random)
2368             action=${opt%%-random}
2369             do_random ${action#--} $COMPONENT_LIST
2370         ;;
2371         --enable-random=*|--disable-random=*)
2372             action=${opt%%-random=*}
2373             do_random ${action#--} $optval
2374         ;;
2375         --enable-*=*|--disable-*=*)
2376             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2377             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2378             eval list=\$$(toupper $thing)_LIST
2379             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2380             list=$(filter "$name" $list)
2381             [ "$list" = "" ] && warn "Option $opt did not match anything"
2382             $action $list
2383         ;;
2384         --enable-?*|--disable-?*)
2385             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2386             if is_in $option $COMPONENT_LIST; then
2387                 test $action = disable && action=unset
2388                 eval $action \$$(toupper ${option%s})_LIST
2389             elif is_in $option $CMDLINE_SELECT; then
2390                 $action $option
2391             else
2392                 die_unknown $opt
2393             fi
2394         ;;
2395         --list-*)
2396             NAME="${opt#--list-}"
2397             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2398             NAME=${NAME%s}
2399             eval show_list $NAME \$$(toupper $NAME)_LIST
2400         ;;
2401         --help|-h) show_help
2402         ;;
2403         --fatal-warnings) enable fatal_warnings
2404         ;;
2405         *)
2406             optname="${opt%%=*}"
2407             optname="${optname#--}"
2408             optname=$(echo "$optname" | sed 's/-/_/g')
2409             if is_in $optname $CMDLINE_SET; then
2410                 eval $optname='$optval'
2411             elif is_in $optname $CMDLINE_APPEND; then
2412                 append $optname "$optval"
2413             else
2414                 die_unknown $opt
2415             fi
2416         ;;
2417     esac
2418 done
2419
2420 disabled logging && logfile=/dev/null
2421
2422 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2423 set >> $logfile
2424
2425 test -n "$cross_prefix" && enable cross_compile
2426
2427 if enabled cross_compile; then
2428     test -n "$arch" && test -n "$target_os" ||
2429         die "Must specify target arch and OS when cross-compiling"
2430 fi
2431
2432 ar_default="${cross_prefix}${ar_default}"
2433 cc_default="${cross_prefix}${cc_default}"
2434 cxx_default="${cross_prefix}${cxx_default}"
2435 nm_default="${cross_prefix}${nm_default}"
2436 pkg_config_default="${cross_prefix}${pkg_config_default}"
2437 ranlib="${cross_prefix}${ranlib}"
2438 strip_default="${cross_prefix}${strip_default}"
2439
2440 sysinclude_default="${sysroot}/usr/include"
2441
2442 case "$toolchain" in
2443     clang-asan)
2444         cc_default="clang"
2445         add_cflags  -faddress-sanitizer
2446         add_ldflags -faddress-sanitizer
2447     ;;
2448     clang-tsan)
2449         cc_default="clang"
2450         add_cflags  -fthread-sanitizer
2451         add_ldflags -fthread-sanitizer
2452     ;;
2453     msvc)
2454         cc_default="c99wrap cl"
2455         ld_default="c99wrap link"
2456         nm_default="dumpbin -symbols"
2457         ar_default="lib"
2458         target_os_default="win32"
2459     ;;
2460     ?*)
2461         die "Unknown toolchain $toolchain"
2462     ;;
2463 esac
2464
2465 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2466 enabled cross_compile || host_cc_default=$cc
2467 set_default host_cc
2468
2469 if ! $pkg_config --version >/dev/null 2>&1; then
2470     warn "$pkg_config not found, library detection may fail."
2471     pkg_config=false
2472 fi
2473
2474 exesuf() {
2475     case $1 in
2476         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2477     esac
2478 }
2479
2480 EXESUF=$(exesuf $target_os)
2481 HOSTEXESUF=$(exesuf $host_os)
2482
2483 # set temporary file name
2484 : ${TMPDIR:=$TEMPDIR}
2485 : ${TMPDIR:=$TMP}
2486 : ${TMPDIR:=/tmp}
2487
2488 if ! check_cmd mktemp -u XXXXXX; then
2489     # simple replacement for missing mktemp
2490     # NOT SAFE FOR GENERAL USE
2491     mktemp(){
2492         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2493     }
2494 fi
2495
2496 tmpfile(){
2497     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2498         (set -C; exec > $tmp) 2>/dev/null ||
2499         die "Unable to create temporary file in $TMPDIR."
2500     append TMPFILES $tmp
2501     eval $1=$tmp
2502 }
2503
2504 trap 'rm -f -- $TMPFILES' EXIT
2505
2506 tmpfile TMPASM .asm
2507 tmpfile TMPC   .c
2508 tmpfile TMPCPP .cpp
2509 tmpfile TMPE   $EXESUF
2510 tmpfile TMPH   .h
2511 tmpfile TMPO   .o
2512 tmpfile TMPS   .S
2513 tmpfile TMPSH  .sh
2514 tmpfile TMPV   .ver
2515
2516 unset -f mktemp
2517
2518 chmod +x $TMPE
2519
2520 # make sure we can execute files in $TMPDIR
2521 cat > $TMPSH 2>> $logfile <<EOF
2522 #! /bin/sh
2523 EOF
2524 chmod +x $TMPSH >> $logfile 2>&1
2525 if ! $TMPSH >> $logfile 2>&1; then
2526     cat <<EOF
2527 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2528 variable to another directory and make sure that it is not mounted noexec.
2529 EOF
2530     die "Sanity test failed."
2531 fi
2532
2533 ccc_flags(){
2534     for flag; do
2535         case $flag in
2536             -std=c99)           echo -c99                       ;;
2537             -mcpu=*)            echo -arch ${flag#*=}           ;;
2538             -mieee)             echo -ieee                      ;;
2539             -O*|-fast)          echo $flag                      ;;
2540             -fno-math-errno)    echo -assume nomath_errno       ;;
2541             -g)                 echo -g3                        ;;
2542             -Wall)              echo -msg_enable level2         ;;
2543             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2544             -Wl,*)              echo $flag                      ;;
2545             -f*|-W*)                                            ;;
2546             *)                  echo $flag                      ;;
2547         esac
2548    done
2549 }
2550
2551 msvc_flags(){
2552     for flag; do
2553         case $flag in
2554             -fomit-frame-pointer) echo -Oy ;;
2555             -g)                   echo -Z7 ;;
2556             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2557                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2558                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2559                                        -wd4554 \
2560                                        -wd4996 -wd4273 ;;
2561             -std=c99)             ;;
2562             -fno-math-errno)      ;;
2563             -fno-common)          ;;
2564             -fno-signed-zeros)    ;;
2565             -fPIC)                ;;
2566             -lz)                  echo zlib.lib ;;
2567             -lavifil32)           echo vfw32.lib ;;
2568             -lavicap32)           echo vfw32.lib user32.lib ;;
2569             -l*)                  echo ${flag#-l}.lib ;;
2570             *)                    echo $flag ;;
2571         esac
2572     done
2573 }
2574
2575 pgi_flags(){
2576     for flag; do
2577         case $flag in
2578             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2579             -fomit-frame-pointer) echo -Mnoframe ;;
2580             -g)                   echo -gopt ;;
2581             *)                    echo $flag ;;
2582         esac
2583     done
2584 }
2585
2586 suncc_flags(){
2587     for flag; do
2588         case $flag in
2589             -march=*|-mcpu=*)
2590                 case "${flag#*=}" in
2591                     native)                   echo -xtarget=native       ;;
2592                     v9|niagara)               echo -xarch=sparc          ;;
2593                     ultrasparc)               echo -xarch=sparcvis       ;;
2594                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2595                     i586|pentium)             echo -xchip=pentium        ;;
2596                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2597                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2598                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2599                     pentium4*)          echo -xtarget=pentium4           ;;
2600                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2601                     *-sse3)             echo -xarch=sse3                 ;;
2602                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2603                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2604                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2605                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2606                     bdver*)                   echo -xarch=avx            ;;
2607                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2608                     k8|opteron|athlon64|athlon-fx)
2609                                               echo -xarch=sse2a          ;;
2610                     athlon*)                  echo -xarch=pentium_proa   ;;
2611                 esac
2612                 ;;
2613             -std=c99)             echo -xc99              ;;
2614             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2615             -fPIC)                echo -KPIC -xcode=pic32 ;;
2616             -W*,*)                echo $flag              ;;
2617             -f*-*|-W*|-mimpure-text)                      ;;
2618             -shared)              echo -G                 ;;
2619             *)                    echo $flag              ;;
2620         esac
2621     done
2622 }
2623
2624 tms470_flags(){
2625     for flag; do
2626         case $flag in
2627             -march=*|-mcpu=*)
2628                 case "${flag#*=}" in
2629                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2630                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2631                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2632                     armv6*|arm11*)          echo -mv=6   ;;
2633                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2634                                             echo -mv=5e  ;;
2635                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2636                 esac
2637                 ;;
2638             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2639             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2640             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2641             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2642             -msoft-float)   echo --float_support=vfplib       ;;
2643             -O[0-3]|-mf=*)  echo $flag                        ;;
2644             -g)             echo -g -mn                       ;;
2645             -pds=*)         echo $flag                        ;;
2646             -D*|-I*)        echo $flag                        ;;
2647             --gcc|--abi=*)  echo $flag                        ;;
2648             -me)            echo $flag                        ;;
2649         esac
2650     done
2651 }
2652
2653 probe_cc(){
2654     pfx=$1
2655     _cc=$2
2656
2657     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2658     unset _ld_o _ldflags _ld_lib _ld_path
2659     unset _depflags _DEPCMD _DEPFLAGS
2660     _flags_filter=echo
2661
2662     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2663         _type=llvm_gcc
2664         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2665         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2666         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2667         _cflags_speed='-O3'
2668         _cflags_size='-Os'
2669     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2670         _type=gcc
2671         gcc_version=$($_cc --version | head -n1)
2672         gcc_basever=$($_cc -dumpversion)
2673         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2674         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2675         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2676         if ! $_cc -dumpversion | grep -q '^2\.'; then
2677             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2678         fi
2679         _cflags_speed='-O3'
2680         _cflags_size='-Os'
2681     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2682         _type=icc
2683         _ident=$($_cc --version | head -n1)
2684         _depflags='-MMD'
2685         _cflags_speed='-O3'
2686         _cflags_size='-Os'
2687         _cflags_noopt='-O1'
2688     elif $_cc -v 2>&1 | grep -q xlc; then
2689         _type=xlc
2690         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2691         _cflags_speed='-O5'
2692         _cflags_size='-O5 -qcompact'
2693     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2694         _type=ccc
2695         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2696         _DEPFLAGS='-M'
2697         _cflags_speed='-fast'
2698         _cflags_size='-O1'
2699         _flags_filter=ccc_flags
2700     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2701         test -d "$sysroot" || die "No valid sysroot specified."
2702         _type=armcc
2703         _ident=$($_cc --vsn | head -n1)
2704         armcc_conf="$PWD/armcc.conf"
2705         $_cc --arm_linux_configure                 \
2706              --arm_linux_config_file="$armcc_conf" \
2707              --configure_sysroot="$sysroot"        \
2708              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2709              die "Error creating armcc configuration file."
2710         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2711         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2712         as_default="${cross_prefix}gcc"
2713         _depflags='-MMD'
2714         _cflags_speed='-O3'
2715         _cflags_size='-Os'
2716     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2717         _type=tms470
2718         _ident=$($_cc -version | head -n1 | tr -s ' ')
2719         _flags='--gcc --abi=eabi -me'
2720         _cc_e='-ppl -fe=$@'
2721         _cc_o='-fe=$@'
2722         _depflags='-ppa -ppd=$(@:.o=.d)'
2723         _cflags_speed='-O3 -mf=5'
2724         _cflags_size='-O3 -mf=2'
2725         _flags_filter=tms470_flags
2726     elif $_cc -v 2>&1 | grep -q clang; then
2727         _type=clang
2728         _ident=$($_cc --version | head -n1)
2729         _depflags='-MMD'
2730         _cflags_speed='-O3'
2731         _cflags_size='-Os'
2732     elif $_cc -V 2>&1 | grep -q Sun; then
2733         _type=suncc
2734         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2735         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2736         _DEPFLAGS='-xM1 -xc99'
2737         _ldflags='-std=c99'
2738         _cflags_speed='-O5'
2739         _cflags_size='-O5 -xspace'
2740         _flags_filter=suncc_flags
2741     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2742         _type=pathscale
2743         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2744         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2745         _cflags_speed='-O2'
2746         _cflags_size='-Os'
2747         _flags_filter='filter_out -Wdisabled-optimization'
2748     elif $_cc -v 2>&1 | grep -q Open64; then
2749         _type=open64
2750         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2751         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2752         _cflags_speed='-O2'
2753         _cflags_size='-Os'
2754         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2755     elif $_cc -V 2>&1 | grep -q Portland; then
2756         _type=pgi
2757         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2758         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2759         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2760         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2761         _cflags_noopt="-O1"
2762         _flags_filter=pgi_flags
2763     elif $_cc 2>&1 | grep -q Microsoft; then
2764         _type=msvc
2765         _ident=$($cc 2>&1 | head -n1)
2766         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2767         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2768         _cflags_speed="-O2"
2769         _cflags_size="-O1"
2770         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2771         if $_cc 2>&1 | grep -q Linker; then
2772             _ld_o='-out $@'
2773         else
2774             _ld_o='-Fe$@'
2775         fi
2776         _cc_o='-Fo $@'
2777         _cc_e='-P -Fi $@'
2778         _flags_filter=msvc_flags
2779         _ld_lib='lib%.a'
2780         _ld_path='-libpath:'
2781         _flags='-nologo'
2782         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2783         if [ $pfx = hostcc ]; then
2784             append _cflags -Dsnprintf=_snprintf
2785         fi
2786         disable stripping
2787     fi
2788
2789     eval ${pfx}_type=\$_type
2790     eval ${pfx}_ident=\$_ident
2791 }
2792
2793 set_ccvars(){
2794     eval ${1}_C=\${_cc_c-\${${1}_C}}
2795     eval ${1}_E=\${_cc_e-\${${1}_E}}
2796     eval ${1}_O=\${_cc_o-\${${1}_O}}
2797
2798     if [ -n "$_depflags" ]; then
2799         eval ${1}_DEPFLAGS=\$_depflags
2800     else
2801         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2802         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2803         eval DEP${1}FLAGS=\$_flags
2804     fi
2805 }
2806
2807 probe_cc cc "$cc"
2808 cflags_filter=$_flags_filter
2809 cflags_speed=$_cflags_speed
2810 cflags_size=$_cflags_size
2811 cflags_noopt=$_cflags_noopt
2812 add_cflags $_flags $_cflags
2813 cc_ldflags=$_ldflags
2814 set_ccvars CC
2815
2816 probe_cc hostcc "$host_cc"
2817 host_cflags_filter=$_flags_filter
2818 add_host_cflags  $_flags $_cflags
2819 set_ccvars HOSTCC
2820
2821 test -n "$cc_type" && enable $cc_type ||
2822     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2823
2824 : ${as_default:=$cc}
2825 : ${dep_cc_default:=$cc}
2826 : ${ld_default:=$cc}
2827 : ${host_ld_default:=$host_cc}
2828 set_default ar as dep_cc ld host_ld
2829
2830 probe_cc as "$as"
2831 asflags_filter=$_flags_filter
2832 add_asflags $_flags $_cflags
2833 set_ccvars AS
2834
2835 probe_cc ld "$ld"
2836 ldflags_filter=$_flags_filter
2837 add_ldflags $_flags $_ldflags
2838 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2839 LD_O=${_ld_o-$LD_O}
2840 LD_LIB=${_ld_lib-$LD_LIB}
2841 LD_PATH=${_ld_path-$LD_PATH}
2842
2843 probe_cc hostld "$host_ld"
2844 host_ldflags_filter=$_flags_filter
2845 add_host_ldflags $_flags $_ldflags
2846 HOSTLD_O=${_ld_o-$HOSTLD_O}
2847
2848 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2849     probe_cc depcc "$dep_cc"
2850     CCDEP=${_DEPCMD:-$DEPCMD}
2851     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2852     DEPCCFLAGS=$_flags
2853 fi
2854
2855 if $ar 2>&1 | grep -q Microsoft; then
2856     arflags="-nologo"
2857     ar_o='-out:$@'
2858 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2859     arflags="rq"
2860     ar_o='$@'
2861 else
2862     arflags="rc"
2863     ar_o='$@'
2864 fi
2865
2866 add_cflags $extra_cflags
2867 add_cxxflags $extra_cxxflags
2868 add_asflags $extra_cflags
2869
2870 if test -n "$sysroot"; then
2871     case "$cc_type" in
2872         gcc|llvm_gcc|clang)
2873             add_cppflags --sysroot="$sysroot"
2874             add_ldflags --sysroot="$sysroot"
2875         ;;
2876         tms470)
2877             add_cppflags -I"$sysinclude"
2878             add_ldflags  --sysroot="$sysroot"
2879         ;;
2880     esac
2881 fi
2882
2883 if test "$cpu" = host; then
2884     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2885
2886     case "$cc_type" in
2887         gcc|llvm_gcc)
2888             check_native(){
2889                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2890                 sed -n "/cc1.*$1=/{
2891                             s/.*$1=\\([^ ]*\\).*/\\1/
2892                             p
2893                             q
2894                         }" $TMPE
2895             }
2896             cpu=$(check_native -march || check_native -mcpu)
2897         ;;
2898     esac
2899
2900     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2901 fi
2902
2903 # Deal with common $arch aliases
2904 case "$arch" in
2905     aarch64|arm64)
2906         arch="aarch64"
2907     ;;
2908     arm*|iPad*)
2909         arch="arm"
2910     ;;
2911     mips*|IP*)
2912         arch="mips"
2913     ;;
2914     parisc*|hppa*)
2915         arch="parisc"
2916     ;;
2917     "Power Macintosh"|ppc*|powerpc*)
2918         arch="ppc"
2919     ;;
2920     s390|s390x)
2921         arch="s390"
2922     ;;
2923     sh4|sh)
2924         arch="sh4"
2925     ;;
2926     sun4u|sparc*)
2927         arch="sparc"
2928     ;;
2929     tilegx|tile-gx)
2930         arch="tilegx"
2931     ;;
2932     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2933         arch="x86"
2934     ;;
2935 esac
2936
2937 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2938 enable $arch
2939
2940 # Add processor-specific flags
2941 if enabled aarch64; then
2942
2943     case $cpu in
2944         armv*)
2945             cpuflags="-march=$cpu"
2946         ;;
2947         *)
2948             cpuflags="-mcpu=$cpu"
2949         ;;
2950     esac
2951
2952 elif enabled alpha; then
2953
2954     cpuflags="-mcpu=$cpu"
2955
2956 elif enabled arm; then
2957
2958     check_arm_arch() {
2959         check_cpp_condition stddef.h \
2960             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2961             $cpuflags
2962     }
2963
2964     probe_arm_arch() {
2965         if   check_arm_arch 4;        then echo armv4;
2966         elif check_arm_arch 4T;       then echo armv4t;
2967         elif check_arm_arch 5;        then echo armv5;
2968         elif check_arm_arch 5E;       then echo armv5e;
2969         elif check_arm_arch 5T;       then echo armv5t;
2970         elif check_arm_arch 5TE;      then echo armv5te;
2971         elif check_arm_arch 5TEJ;     then echo armv5te;
2972         elif check_arm_arch 6;        then echo armv6;
2973         elif check_arm_arch 6J;       then echo armv6j;
2974         elif check_arm_arch 6K;       then echo armv6k;
2975         elif check_arm_arch 6Z;       then echo armv6z;
2976         elif check_arm_arch 6ZK;      then echo armv6zk;
2977         elif check_arm_arch 6T2;      then echo armv6t2;
2978         elif check_arm_arch 7;        then echo armv7;
2979         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2980         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2981         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2982         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2983         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2984         fi
2985     }
2986
2987     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2988
2989     case $cpu in
2990         armv*)
2991             cpuflags="-march=$cpu"
2992             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2993         ;;
2994         *)
2995             cpuflags="-mcpu=$cpu"
2996             case $cpu in
2997                 cortex-a*)                               subarch=armv7a  ;;
2998                 cortex-r*)                               subarch=armv7r  ;;
2999                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3000                 arm11*)                                  subarch=armv6   ;;
3001                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3002                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3003                 *)                             subarch=$(probe_arm_arch) ;;
3004             esac
3005         ;;
3006     esac
3007
3008     case "$subarch" in
3009         armv5t*)    enable fast_clz                ;;
3010         armv[6-8]*) enable fast_clz fast_unaligned ;;
3011     esac
3012
3013 elif enabled avr32; then
3014
3015     case $cpu in
3016         ap7[02]0[0-2])
3017             subarch="avr32_ap"
3018             cpuflags="-mpart=$cpu"
3019         ;;
3020         ap)
3021             subarch="avr32_ap"
3022             cpuflags="-march=$cpu"
3023         ;;
3024         uc3[ab]*)
3025             subarch="avr32_uc"
3026             cpuflags="-mcpu=$cpu"
3027         ;;
3028         uc)
3029             subarch="avr32_uc"
3030             cpuflags="-march=$cpu"
3031         ;;
3032     esac
3033
3034 elif enabled bfin; then
3035
3036     cpuflags="-mcpu=$cpu"
3037
3038 elif enabled mips; then
3039
3040     cpuflags="-march=$cpu"
3041
3042     case $cpu in
3043         24kc)
3044             disable mipsfpu
3045             disable mipsdspr1
3046             disable mipsdspr2
3047         ;;
3048         24kf*)
3049             disable mipsdspr1
3050             disable mipsdspr2
3051         ;;
3052         24kec|34kc|1004kc)
3053             disable mipsfpu
3054             disable mipsdspr2
3055         ;;
3056         24kef*|34kf*|1004kf*)
3057             disable mipsdspr2
3058         ;;
3059         74kc)
3060             disable mipsfpu
3061         ;;
3062     esac
3063
3064 elif enabled ppc; then
3065
3066     case $(tolower $cpu) in
3067         601|ppc601|powerpc601)
3068             cpuflags="-mcpu=601"
3069             disable altivec
3070         ;;
3071         603*|ppc603*|powerpc603*)
3072             cpuflags="-mcpu=603"
3073             disable altivec
3074         ;;
3075         604*|ppc604*|powerpc604*)
3076             cpuflags="-mcpu=604"
3077             disable altivec
3078         ;;
3079         g3|75*|ppc75*|powerpc75*)
3080             cpuflags="-mcpu=750"
3081             disable altivec
3082         ;;
3083         g4|745*|ppc745*|powerpc745*)
3084             cpuflags="-mcpu=7450"
3085         ;;
3086         74*|ppc74*|powerpc74*)
3087             cpuflags="-mcpu=7400"
3088         ;;
3089         g5|970|ppc970|powerpc970)
3090             cpuflags="-mcpu=970"
3091         ;;
3092         power[3-7]*)
3093             cpuflags="-mcpu=$cpu"
3094         ;;
3095         cell)
3096             cpuflags="-mcpu=cell"
3097             enable ldbrx
3098         ;;
3099         e500mc)
3100             cpuflags="-mcpu=e500mc"
3101             disable altivec
3102         ;;
3103         e500v2)
3104             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3105             disable altivec
3106         ;;
3107         e500)
3108             cpuflags="-mcpu=8540 -mhard-float"
3109             disable altivec
3110         ;;
3111     esac
3112
3113 elif enabled sparc; then
3114
3115     case $cpu in
3116         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3117             cpuflags="-mcpu=$cpu"
3118             disable vis
3119         ;;
3120         ultrasparc*|niagara[234])
3121             cpuflags="-mcpu=$cpu"
3122         ;;
3123     esac
3124
3125 elif enabled x86; then
3126
3127     case $cpu in
3128         i[345]86|pentium)
3129             cpuflags="-march=$cpu"
3130             disable mmx
3131         ;;
3132         # targets that do NOT support conditional mov (cmov)
3133         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3134             cpuflags="-march=$cpu"
3135             disable cmov
3136         ;;
3137         # targets that do support conditional mov (cmov)
3138         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3139             cpuflags="-march=$cpu"
3140             enable cmov
3141             enable fast_cmov
3142         ;;
3143         # targets that do support conditional mov but on which it's slow
3144         pentium4|pentium4m|prescott|nocona)
3145             cpuflags="-march=$cpu"
3146             enable cmov
3147             disable fast_cmov
3148         ;;
3149     esac
3150
3151 fi
3152
3153 if [ "$cpu" != generic ]; then
3154     add_cflags  $cpuflags
3155     add_asflags $cpuflags
3156 fi
3157
3158 # compiler sanity check
3159 check_exec <<EOF
3160 int main(void){ return 0; }
3161 EOF
3162 if test "$?" != 0; then
3163     echo "$cc is unable to create an executable file."
3164     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3165         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3166         echo "Only do this if you know what cross compiling means."
3167     fi
3168     die "C compiler test failed."
3169 fi
3170
3171 add_cppflags -D_ISOC99_SOURCE
3172 add_cxxflags -D__STDC_CONSTANT_MACROS
3173 check_cflags -std=c99
3174 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3175 #include <stdlib.h>
3176 EOF
3177 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3178 #include <stdlib.h>
3179 EOF
3180
3181 check_host_cflags -std=c99
3182 check_host_cflags -Wall
3183
3184 check_64bit(){
3185     arch32=$1
3186     arch64=$2
3187     expr=$3
3188     check_code cc "" "int test[2*($expr) - 1]" &&
3189         subarch=$arch64 || subarch=$arch32
3190 }
3191
3192 case "$arch" in
3193     aarch64|alpha|ia64)
3194         spic=$shared
3195     ;;
3196     mips)
3197         check_64bit mips mips64 '_MIPS_SIM > 1'
3198         spic=$shared
3199     ;;
3200     parisc)
3201         check_64bit parisc parisc64 'sizeof(void *) > 4'
3202         spic=$shared
3203     ;;
3204     ppc)
3205         check_64bit ppc ppc64 'sizeof(void *) > 4'
3206         spic=$shared
3207     ;;
3208     sparc)
3209         check_64bit sparc sparc64 'sizeof(void *) > 4'
3210         spic=$shared
3211     ;;
3212     x86)
3213         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3214         if test "$subarch" = "x86_64"; then
3215             spic=$shared
3216         fi
3217     ;;
3218     ppc)
3219         check_cc <<EOF && subarch="ppc64"
3220         int test[(int)sizeof(char*) - 7];
3221 EOF
3222     ;;
3223 esac
3224
3225 enable $subarch
3226 enabled spic && enable pic
3227
3228 # OS specific
3229 case $target_os in
3230     haiku)
3231         prefix_default="/boot/common"
3232         network_extralibs="-lnetwork"
3233         host_libs=
3234         ;;
3235     sunos)
3236         FFSERVERLDFLAGS=""
3237         SHFLAGS='-shared -Wl,-h,$$(@F)'
3238         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3239         network_extralibs="-lsocket -lnsl"
3240         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3241         # When using suncc to build, the Solaris linker will mark
3242         # an executable with each instruction set encountered by
3243         # the Solaris assembler.  As our libraries contain their own
3244         # guards for processor-specific code, instead suppress
3245         # generation of the HWCAPS ELF section on Solaris x86 only.
3246         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3247         nm_default='nm -P -g'
3248         ;;
3249     netbsd)
3250         disable symver
3251         oss_indev_extralibs="-lossaudio"
3252         oss_outdev_extralibs="-lossaudio"
3253         enabled gcc || check_ldflags -Wl,-zmuldefs
3254         ;;
3255     openbsd|bitrig)
3256         disable symver
3257         SHFLAGS='-shared'
3258         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3259         SLIB_INSTALL_LINKS=
3260         oss_indev_extralibs="-lossaudio"
3261         oss_outdev_extralibs="-lossaudio"
3262         ;;
3263     dragonfly)
3264         disable symver
3265         ;;
3266     freebsd)
3267         ;;
3268     bsd/os)
3269         add_extralibs -lpoll -lgnugetopt
3270         strip="strip -d"
3271         ;;
3272     darwin)
3273         gas="gas-preprocessor.pl $cc"
3274         enabled ppc && add_asflags -force_cpusubtype_ALL
3275         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3276         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3277         strip="${strip} -x"
3278         add_ldflags -Wl,-dynamic,-search_paths_first
3279         SLIBSUF=".dylib"
3280         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3281         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3282         FFSERVERLDFLAGS=-Wl,-bind_at_load
3283         objformat="macho"
3284         enabled x86_64 && objformat="macho64"
3285         enabled_any pic shared ||
3286             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3287         ;;
3288     mingw32*)
3289         if test $target_os = "mingw32ce"; then
3290             disable network
3291         else
3292             target_os=mingw32
3293         fi
3294         LIBTARGET=i386
3295         if enabled x86_64; then
3296             LIBTARGET="i386:x86-64"
3297         elif enabled arm; then
3298             LIBTARGET=arm-wince
3299         fi
3300         shlibdir_default="$bindir_default"
3301         SLIBPREF=""
3302         SLIBSUF=".dll"
3303         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3304         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3305         dlltool="${cross_prefix}dlltool"
3306         if check_cmd lib.exe -list; then
3307             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3308             if enabled x86_64; then
3309                 LIBTARGET=x64
3310             fi
3311         elif check_cmd $dlltool --version; then
3312             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3313         fi
3314         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3315         SLIB_INSTALL_LINKS=
3316         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3317         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3318         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3319         objformat="win32"
3320         ranlib=:
3321         enable dos_paths
3322         ;;
3323     win32|win64)
3324         if enabled shared; then
3325             # Link to the import library instead of the normal static library
3326             # for shared libs.
3327             LD_LIB='%.lib'
3328             # Cannot build shared and static libraries at the same time with
3329             # MSVC.
3330             disable static
3331         fi
3332         shlibdir_default="$bindir_default"
3333         SLIBPREF=""
3334         SLIBSUF=".dll"
3335         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3336         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3337         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3338         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3339         SLIB_INSTALL_LINKS=
3340         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3341         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3342         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3343         objformat="win32"
3344         ranlib=:
3345         enable dos_paths
3346         ;;
3347     cygwin*)
3348         target_os=cygwin
3349         shlibdir_default="$bindir_default"
3350         SLIBPREF="cyg"
3351         SLIBSUF=".dll"
3352         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3353         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3354         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3355         SLIB_INSTALL_LINKS=
3356         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3357         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3358         objformat="win32"
3359         enable dos_paths
3360         ;;
3361     *-dos|freedos|opendos)
3362         network_extralibs="-lsocket"
3363         objformat="coff"
3364         enable dos_paths
3365         add_cppflags -U__STRICT_ANSI__
3366         ;;
3367     linux)
3368         enable dv1394
3369         ;;
3370     irix*)
3371         target_os=irix
3372         ranlib="echo ignoring ranlib"
3373         ;;
3374     os/2*)
3375         strip="lxlite -CS"
3376         ln_s="cp -f"
3377         objformat="aout"
3378         add_cppflags -D_GNU_SOURCE
3379         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3380         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3381         FFSERVERLDFLAGS=""
3382         LIBSUF="_s.a"
3383         SLIBPREF=""
3384         SLIBSUF=".dll"
3385         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3386         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3387         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3388             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3389             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3390             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3391             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3392             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3393         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3394             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3395         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3396         enable dos_paths
3397         enable_weak os2threads
3398         ;;
3399     gnu/kfreebsd)
3400         add_cppflags -D_BSD_SOURCE
3401         ;;
3402     gnu)
3403         ;;
3404     qnx)
3405         add_cppflags -D_QNX_SOURCE
3406         network_extralibs="-lsocket"
3407         ;;
3408     symbian)
3409         SLIBSUF=".dll"
3410         enable dos_paths
3411         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3412         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3413         add_ldflags -Wl,--target1-abs,--no-undefined \
3414                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3415                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3416         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3417                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3418                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3419         ;;
3420     osf1)
3421         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3422         FFSERVERLDFLAGS=
3423         ;;
3424     minix)
3425         ;;
3426     plan9)
3427         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3428                      -D_REENTRANT_SOURCE        \
3429                      -D_RESEARCH_SOURCE         \
3430                      -DFD_SETSIZE=96            \
3431                      -DHAVE_SOCK_OPTS
3432         add_compat strtod.o strtod=avpriv_strtod
3433         network_extralibs='-lbsd'
3434         exeobjs=compat/plan9/main.o
3435         disable ffserver
3436         cp_f='cp'
3437         ;;
3438     none)
3439         ;;
3440     *)
3441         die "Unknown OS '$target_os'."
3442         ;;
3443 esac
3444
3445 # determine libc flavour
3446
3447 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3448 if check_cpp_condition features.h "defined __UCLIBC__"; then
3449     libc_type=uclibc
3450     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3451 elif check_cpp_condition features.h "defined __GLIBC__"; then
3452     libc_type=glibc
3453     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3454 # MinGW headers can be installed on Cygwin, so check for newlib first.
3455 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3456     libc_type=newlib
3457     add_cppflags -U__STRICT_ANSI__
3458 elif check_header _mingw.h; then
3459     libc_type=mingw
3460     check_cpp_condition _mingw.h \
3461         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3462             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3463         die "ERROR: MinGW runtime version must be >= 3.15."
3464     add_cppflags -U__STRICT_ANSI__
3465     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3466             __MINGW64_VERSION_MAJOR < 3"; then
3467         add_compat msvcrt/snprintf.o
3468         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3469     fi
3470 elif check_func_headers stdlib.h _get_doserrno; then
3471     libc_type=msvcrt
3472     add_compat strtod.o strtod=avpriv_strtod
3473     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3474                                  _snprintf=avpriv_snprintf  \
3475                                  vsnprintf=avpriv_vsnprintf
3476 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3477     libc_type=klibc
3478 fi
3479
3480 test -n "$libc_type" && enable $libc_type
3481
3482 # hacks for compiler/libc/os combinations
3483
3484 if enabled_all tms470 glibc; then
3485     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3486     add_cppflags -D__USER_LABEL_PREFIX__=
3487     add_cppflags -D__builtin_memset=memset
3488     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3489     add_cflags   -pds=48    # incompatible redefinition of macro
3490 fi
3491
3492 if enabled_all ccc glibc; then
3493     add_ldflags -Wl,-z,now  # calls to libots crash without this
3494 fi
3495
3496 esc(){
3497     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3498 }
3499
3500 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3501
3502 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3503
3504 set_default $PATHS_LIST
3505 set_default nm
3506
3507 # we need to build at least one lib type
3508 if ! enabled_any static shared; then
3509     cat <<EOF
3510 At least one library type must be built.
3511 Specify --enable-static to build the static libraries or --enable-shared to
3512 build the shared libraries as well. To only build the shared libraries specify
3513 --disable-static in addition to --enable-shared.
3514 EOF
3515     exit 1;
3516 fi
3517
3518 die_license_disabled() {
3519     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3520 }
3521
3522 die_license_disabled_gpl() {
3523     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3524 }
3525
3526 die_license_disabled gpl libcdio
3527 die_license_disabled gpl libutvideo
3528 die_license_disabled gpl libx264
3529 die_license_disabled gpl libxavs
3530 die_license_disabled gpl libxvid
3531 die_license_disabled gpl x11grab
3532
3533 die_license_disabled nonfree libaacplus
3534 die_license_disabled nonfree libfaac
3535 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3536 enabled gpl && die_license_disabled_gpl nonfree openssl
3537
3538 die_license_disabled version3 libopencore_amrnb
3539 die_license_disabled version3 libopencore_amrwb
3540 die_license_disabled version3 libvo_aacenc
3541 die_license_disabled version3 libvo_amrwbenc
3542
3543 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3544
3545 disabled optimizations || check_cflags -fomit-frame-pointer
3546
3547 enable_pic() {
3548     enable pic
3549     add_cppflags -DPIC
3550     add_cflags   -fPIC
3551     add_asflags  -fPIC
3552 }
3553
3554 enabled pic && enable_pic
3555
3556 check_cc <<EOF || die "Symbol mangling check failed."
3557 int ff_extern;
3558 EOF
3559 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3560 extern_prefix=${sym%%ff_extern*}
3561
3562 check_cc <<EOF && enable_weak inline_asm
3563 void foo(void) { __asm__ volatile ("" ::); }
3564 EOF
3565
3566 _restrict=
3567 for restrict_keyword in restrict __restrict__ __restrict; do
3568     check_cc <<EOF && _restrict=$restrict_keyword && break
3569 void foo(char * $restrict_keyword p);
3570 EOF
3571 done
3572
3573 check_cc <<EOF && enable attribute_packed
3574 struct { int x; } __attribute__((packed)) x;
3575 EOF
3576
3577 check_cc <<EOF && enable attribute_may_alias
3578 union { int x; } __attribute__((may_alias)) x;
3579 EOF
3580
3581 check_cc <<EOF || die "endian test failed"
3582 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3583 EOF
3584 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3585
3586 if enabled alpha; then
3587
3588     check_cflags -mieee
3589
3590 elif enabled arm; then
3591
3592     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3593 float func(float a, float b){ return a+b; }
3594 EOF
3595
3596     enabled thumb && check_cflags -mthumb || check_cflags -marm
3597     nogas=die
3598
3599     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3600         enable vfp_args
3601     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3602         case "${cross_prefix:-$cc}" in
3603             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3604             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3605 __asm__ (".eabi_attribute 28, 1");
3606 int main(void) { return 0; }
3607 EOF
3608         esac
3609         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3610     fi
3611
3612     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3613     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3614     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3615     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3616     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3617     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3618
3619     [ $target_os = linux ] ||
3620         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3621             $ARCH_EXT_LIST_ARM
3622
3623     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3624     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3625
3626     enabled_all armv6t2 shared !pic && enable_pic
3627
3628 elif enabled mips; then
3629
3630     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3631     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3632      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3633     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3634      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3635     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3636      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3637     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3638      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3639
3640 elif enabled parisc; then
3641
3642     if enabled gcc; then
3643         case $($cc -dumpversion) in
3644             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3645         esac
3646     fi
3647
3648 elif enabled ppc; then
3649
3650     enable local_aligned_8 local_aligned_16
3651
3652     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3653     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3654     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3655     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3656
3657     # AltiVec flags: The FSF version of GCC differs from the Apple version
3658     if enabled altivec; then
3659         nogas=warn
3660         check_cflags -maltivec -mabi=altivec &&
3661         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3662         check_cflags -faltivec
3663
3664         # check if our compiler supports Motorola AltiVec C API
3665         check_cc <<EOF || disable altivec
3666 $inc_altivec_h
3667 int main(void) {
3668     vector signed int v1 = (vector signed int) { 0 };
3669     vector signed int v2 = (vector signed int) { 1 };
3670     v1 = vec_add(v1, v2);
3671     return 0;
3672 }
3673 EOF
3674
3675         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3676     fi
3677
3678 elif enabled sparc; then
3679
3680     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3681
3682 elif enabled x86; then
3683
3684     check_builtin rdtsc    intrin.h   "__rdtsc()"
3685     check_builtin mm_empty mmintrin.h "_mm_empty()"
3686
3687     enable local_aligned_8 local_aligned_16
3688
3689     # check whether EBP is available on x86
3690     # As 'i' is stored on the stack, this program will crash
3691     # if the base pointer is used to access it because the
3692     # base pointer is cleared in the inline assembly code.
3693     check_exec_crash <<EOF && enable ebp_available
3694 volatile int i=0;
3695 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3696 return i;
3697 EOF
3698
3699     # check whether EBX is available on x86
3700     check_inline_asm ebx_available '""::"b"(0)' &&
3701         check_inline_asm ebx_available '"":::"%ebx"'
3702
3703     # check whether xmm clobbers are supported
3704     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3705
3706     # check whether binutils is new enough to compile SSSE3/MMXEXT
3707     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3708     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3709
3710     if ! disabled_any asm mmx yasm; then
3711         if check_cmd $yasmexe --version; then
3712             enabled x86_64 && yasm_extra="-m amd64"
3713             yasm_debug="-g dwarf2"
3714         elif check_cmd nasm -v; then
3715             yasmexe=nasm
3716             yasm_debug="-g -F dwarf"
3717             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3718         fi
3719
3720         YASMFLAGS="-f $objformat $yasm_extra"
3721         enabled pic               && append YASMFLAGS "-DPIC"
3722         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3723         case "$objformat" in
3724             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3725         esac
3726
3727         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3728             die "yasm not found, use --disable-yasm for a crippled build"
3729         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3730         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3731         check_yasm "CPU amdnop" && enable cpunop
3732     fi
3733
3734     case "$cpu" in
3735         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3736             disable fast_clz
3737         ;;
3738     esac
3739
3740 fi
3741
3742 if enabled asm; then
3743     as=${gas:=$as}
3744     check_as <<EOF && enable gnu_as || \
3745         $nogas "GNU assembler not found, install gas-preprocessor"
3746 .macro m n
3747 \n: .int 0
3748 .endm
3749 m x
3750 EOF
3751 fi
3752
3753 check_ldflags -Wl,--as-needed
3754
3755 if check_func dlopen; then
3756     ldl=
3757 elif check_func dlopen -ldl; then
3758     ldl=-ldl
3759 fi
3760
3761 if ! disabled network; then
3762     check_type "sys/types.h sys/socket.h" socklen_t
3763     check_type netdb.h "struct addrinfo"
3764     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3765     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3766     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3767     check_type netinet/in.h "struct sockaddr_in6"
3768     check_type poll.h "struct pollfd"
3769     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3770     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3771     check_type netinet/sctp.h "struct sctp_event_subscribe"
3772     check_func getaddrinfo $network_extralibs
3773     check_func getservbyport $network_extralibs
3774     # Prefer arpa/inet.h over winsock2
3775     if check_header arpa/inet.h ; then
3776         check_func closesocket
3777     elif check_header winsock2.h ; then
3778         check_func_headers winsock2.h closesocket -lws2 &&
3779             network_extralibs="-lws2" ||
3780         { check_func_headers winsock2.h closesocket -lws2_32 &&
3781             network_extralibs="-lws2_32"; }
3782         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3783         check_type ws2tcpip.h socklen_t
3784         check_type ws2tcpip.h "struct addrinfo"
3785         check_type ws2tcpip.h "struct group_source_req"
3786         check_type ws2tcpip.h "struct ip_mreq_source"
3787         check_type ws2tcpip.h "struct ipv6_mreq"
3788         check_type winsock2.h "struct pollfd"
3789         check_type ws2tcpip.h "struct sockaddr_in6"
3790         check_type ws2tcpip.h "struct sockaddr_storage"
3791         check_struct winsock2.h "struct sockaddr" sa_len
3792     else
3793         disable network
3794     fi
3795 fi
3796
3797 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3798 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3799
3800 check_func  access
3801 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3802 check_func  fcntl
3803 check_func  fork
3804 check_func  gethrtime
3805 check_func  getopt
3806 check_func  getrusage
3807 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3808 check_func  gettimeofday
3809 check_func  inet_aton $network_extralibs
3810 check_func  isatty
3811 check_func  localtime_r
3812 check_func  ${malloc_prefix}memalign            && enable memalign
3813 check_func  mkstemp
3814 check_func  mmap
3815 check_func  mprotect
3816 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3817 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3818 check_func  setrlimit
3819 check_func  strerror_r
3820 check_func  sched_getaffinity
3821 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3822 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3823 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3824 check_func  sysconf
3825 check_func  sysctl
3826 check_func  usleep
3827 check_func_headers conio.h kbhit
3828 check_func_headers windows.h PeekNamedPipe
3829 check_func_headers io.h setmode
3830 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3831 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3832 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3833 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3834 check_func_headers windows.h GetProcessAffinityMask
3835 check_func_headers windows.h GetProcessTimes
3836 check_func_headers windows.h GetSystemTimeAsFileTime
3837 check_func_headers windows.h MapViewOfFile
3838 check_func_headers windows.h SetConsoleTextAttribute
3839 check_func_headers windows.h Sleep
3840 check_func_headers windows.h VirtualAlloc
3841 check_func_headers glob.h glob
3842
3843 check_header direct.h
3844 check_header dlfcn.h
3845 check_header dxva.h
3846 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3847 check_header io.h
3848 check_header libcrystalhd/libcrystalhd_if.h
3849 check_header malloc.h
3850 check_header poll.h
3851 check_header sys/mman.h
3852 check_header sys/param.h
3853 check_header sys/resource.h
3854 check_header sys/select.h
3855 check_header sys/time.h
3856 check_header termios.h
3857 check_header unistd.h
3858 check_header vdpau/vdpau.h
3859 check_header vdpau/vdpau_x11.h
3860 check_header VideoDecodeAcceleration/VDADecoder.h
3861 check_header windows.h
3862 check_header X11/extensions/XvMClib.h
3863 check_header asm/types.h
3864
3865 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3866 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3867
3868 if ! disabled w32threads && ! enabled pthreads; then
3869     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3870 fi
3871
3872 # check for some common methods of building with pthread support
3873 # do this before the optional library checks as some of them require pthreads
3874 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3875     enable pthreads
3876     if check_func pthread_create; then
3877         :
3878     elif check_func pthread_create -pthread; then
3879         add_cflags -pthread
3880         add_extralibs -pthread
3881     elif check_func pthread_create -pthreads; then
3882         add_cflags -pthreads
3883         add_extralibs -pthreads
3884     elif check_func pthread_create -lpthreadGC2; then
3885         add_extralibs -lpthreadGC2
3886     elif ! check_lib pthread.h pthread_create -lpthread; then
3887         disable pthreads
3888     fi
3889 fi
3890
3891 for thread in $THREADS_LIST; do
3892     if enabled $thread; then
3893         test -n "$thread_type" &&
3894             die "ERROR: Only one thread type must be selected." ||
3895             thread_type="$thread"
3896     fi
3897 done
3898
3899 if enabled pthreads; then
3900   check_func pthread_cancel
3901 fi
3902
3903 check_lib math.h sin -lm && LIBM="-lm"
3904 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3905 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3906
3907 atan2f_args=2
3908 ldexpf_args=2
3909 powf_args=2
3910
3911 for func in $MATH_FUNCS; do
3912     eval check_mathfunc $func \${${func}_args:-1}
3913 done
3914
3915 # these are off by default, so fail if requested and not available
3916 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3917 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3918 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3919 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3920 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3921 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3922 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3923 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3924 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3925                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3926                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3927 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3928 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3929 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3930 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"
3931 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3932 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3933 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3934                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3935                         done || die "ERROR: libgsm not found"; }
3936 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3937 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3938 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3939 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3940 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3941 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3942 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3943 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3944                          check_lib openjpeg.h opj_version -lopenjpeg ||
3945                          die "ERROR: libopenjpeg not found"; }
3946 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3947 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3948 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3949 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3950 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3951 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3952 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3953     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3954     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3955 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3956 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3957                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3958                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3959 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3960 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3961 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3962 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3963 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3964 enabled libvpx     && {
3965     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3966                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3967     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 ||
3968                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3969     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3970     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3971 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3972                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3973                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3974 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3975 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3976 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3977                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3978                         die "ERROR: openal not found"; } &&
3979                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3980                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3981 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3982                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3983                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3984                         die "ERROR: openssl not found"; }
3985
3986 if enabled gnutls; then
3987     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3988     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3989 fi
3990
3991 # libdc1394 check
3992 if enabled libdc1394; then
3993     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3994         enable libdc1394_2; } ||
3995     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3996         enable libdc1394_1; } ||
3997     die "ERROR: No version of libdc1394 found "
3998 fi
3999
4000 SDL_CONFIG="${cross_prefix}sdl-config"
4001 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4002     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4003     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4004     enable sdl
4005 else
4006   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4007     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4008     sdl_libs=$("${SDL_CONFIG}" --libs)
4009     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4010     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4011     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4012     enable sdl
4013   fi
4014 fi
4015 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4016
4017 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4018 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4019 perl --version > /dev/null 2>&1 && enable perl || disable perl
4020 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4021 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4022
4023 check_header linux/fb.h
4024 check_header linux/videodev.h
4025 check_header linux/videodev2.h
4026 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4027
4028 check_header sys/videoio.h
4029
4030 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4031 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4032 # w32api 3.12 had it defined wrong
4033 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4034
4035 check_type "dshow.h" IBaseFilter
4036
4037 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4038 { check_header dev/bktr/ioctl_meteor.h &&
4039   check_header dev/bktr/ioctl_bt848.h; } ||
4040 { check_header machine/ioctl_meteor.h &&
4041   check_header machine/ioctl_bt848.h; } ||
4042 { check_header dev/video/meteor/ioctl_meteor.h &&
4043   check_header dev/video/bktr/ioctl_bt848.h; } ||
4044 check_header dev/ic/bt8xx.h
4045
4046 check_header sndio.h
4047 if check_struct sys/soundcard.h audio_buf_info bytes; then
4048     enable_safe sys/soundcard.h
4049 else
4050     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4051     #include <sys/soundcard.h>
4052     audio_buf_info abc;
4053 EOF
4054 fi
4055 check_header soundcard.h
4056
4057 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4058
4059 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4060     check_func jack_port_get_latency_range -ljack
4061
4062 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4063
4064 if enabled libcdio; then
4065     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
4066 fi
4067
4068 enabled x11grab                                           &&
4069 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4070 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4071 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4072
4073 if ! disabled vaapi; then
4074     check_lib va/va.h vaInitialize -lva && {
4075         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4076         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4077     } || disable vaapi
4078 fi
4079
4080 enabled vdpau &&
4081     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4082     disable vdpau
4083
4084 # Funny iconv installations are not unusual, so check it after all flags have been set
4085 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4086
4087 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4088 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4089 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"
4090
4091 # add some useful compiler flags if supported
4092 check_cflags -Wdeclaration-after-statement
4093 check_cflags -Wall
4094 check_cflags -Wno-parentheses
4095 check_cflags -Wno-switch
4096 check_cflags -Wno-format-zero-length
4097 check_cflags -Wdisabled-optimization
4098 check_cflags -Wpointer-arith
4099 check_cflags -Wredundant-decls
4100 check_cflags -Wno-pointer-sign
4101 check_cflags -Wwrite-strings
4102 check_cflags -Wtype-limits
4103 check_cflags -Wundef
4104 check_cflags -Wmissing-prototypes
4105 check_cflags -Wno-pointer-to-int-cast
4106 check_cflags -Wstrict-prototypes
4107 enabled extra_warnings && check_cflags -Winline
4108
4109 # add some linker flags
4110 check_ldflags -Wl,--warn-common
4111 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4112 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4113
4114 enabled xmm_clobber_test &&
4115     check_ldflags -Wl,--wrap,avcodec_open2              \
4116                   -Wl,--wrap,avcodec_decode_audio4      \
4117                   -Wl,--wrap,avcodec_decode_video2      \
4118                   -Wl,--wrap,avcodec_decode_subtitle2   \
4119                   -Wl,--wrap,avcodec_encode_audio2      \
4120                   -Wl,--wrap,avcodec_encode_video       \
4121                   -Wl,--wrap,avcodec_encode_subtitle    \
4122                   -Wl,--wrap,sws_scale ||
4123     disable xmm_clobber_test
4124
4125 echo "X{};" > $TMPV
4126 if test_ldflags -Wl,--version-script,$TMPV; then
4127     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4128     check_cc <<EOF && enable symver_asm_label
4129 void ff_foo(void) __asm__ ("av_foo@VERSION");
4130 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4131 EOF
4132     check_cc <<EOF && enable symver_gnu_asm
4133 __asm__(".symver ff_foo,av_foo@VERSION");
4134 void ff_foo(void) {}
4135 EOF
4136 fi
4137
4138 if [ -z "$optflags" ]; then
4139     if enabled small; then
4140         optflags=$cflags_size
4141     elif enabled optimizations; then
4142         optflags=$cflags_speed
4143     else
4144         optflags=$cflags_noopt
4145     fi
4146 fi
4147
4148 check_optflags(){
4149     check_cflags "$@"
4150     enabled lto && check_ldflags "$@"
4151 }
4152
4153
4154 if enabled lto; then
4155     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4156     check_cflags  -flto
4157     check_ldflags -flto $cpuflags
4158 fi
4159
4160 check_optflags $optflags
4161 check_optflags -fno-math-errno
4162 check_optflags -fno-signed-zeros
4163
4164 enabled ftrapv && check_cflags -ftrapv
4165
4166 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4167 int x;
4168 EOF
4169
4170
4171 if enabled icc; then
4172     # Just warnings, no remarks
4173     check_cflags -w1
4174     # -wd: Disable following warnings
4175     # 144, 167, 556: -Wno-pointer-sign
4176     # 188: enumerated type mixed with another type
4177     # 1292: attribute "foo" ignored
4178     # 1419: external declaration in primary source file
4179     # 10006: ignoring unknown option -fno-signed-zeros
4180     # 10148: ignoring unknown option -Wno-parentheses
4181     # 10156: ignoring option '-W'; no argument required
4182     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4183     # 11030: Warning unknown option --as-needed
4184     # 10156: ignoring option '-export'; no argument required
4185     check_ldflags -wd10156,11030
4186     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4187     enable ebp_available
4188     if enabled x86_32; then
4189         icc_version=$($cc -dumpversion)
4190         test ${icc_version%%.*} -ge 11 &&
4191             check_cflags -falign-stack=maintain-16-byte ||
4192             disable aligned_stack
4193     fi
4194 elif enabled ccc; then
4195     # disable some annoying warnings
4196     add_cflags -msg_disable bitnotint
4197     add_cflags -msg_disable mixfuncvoid
4198     add_cflags -msg_disable nonstandcast
4199     add_cflags -msg_disable unsupieee
4200 elif enabled gcc; then
4201     check_optflags -fno-tree-vectorize
4202     check_cflags -Werror=implicit-function-declaration
4203     check_cflags -Werror=missing-prototypes
4204     check_cflags -Werror=return-type
4205     check_cflags -Werror=vla
4206 elif enabled llvm_gcc; then
4207     check_cflags -mllvm -stack-alignment=16
4208 elif enabled clang; then
4209     check_cflags -mllvm -stack-alignment=16
4210     check_cflags -Qunused-arguments
4211     check_cflags -Werror=implicit-function-declaration
4212     check_cflags -Werror=missing-prototypes
4213     check_cflags -Werror=return-type
4214 elif enabled armcc; then
4215     # 2523: use of inline assembler is deprecated
4216     add_cflags -W${armcc_opt},--diag_suppress=2523
4217     add_cflags -W${armcc_opt},--diag_suppress=1207
4218     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4219     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4220     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4221     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4222 elif enabled tms470; then
4223     add_cflags -pds=824 -pds=837
4224 elif enabled pathscale; then
4225     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4226 elif enabled msvc; then
4227     enabled x86_32 && disable aligned_stack
4228 fi
4229
4230 case $target_os in
4231     osf1)
4232         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4233     ;;
4234     plan9)
4235         add_cppflags -Dmain=plan9_main
4236     ;;
4237 esac
4238
4239 enabled_any $THREADS_LIST      && enable threads
4240
4241 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4242
4243 check_deps $CONFIG_LIST       \
4244            $CONFIG_EXTRA      \
4245            $HAVE_LIST         \
4246            $ALL_COMPONENTS    \
4247
4248
4249 if test $target_os = "haiku"; then
4250     disable memalign
4251     disable posix_memalign
4252 fi
4253
4254 ! enabled_any memalign posix_memalign aligned_malloc &&
4255     enabled_any $need_memalign && enable memalign_hack
4256
4257 # add_dep lib dep
4258 # -> enable ${lib}_deps_${dep}
4259 # -> add $dep to ${lib}_deps only once
4260 add_dep() {
4261     lib=$1
4262     dep=$2
4263     enabled "${lib}_deps_${dep}" && return 0
4264     enable  "${lib}_deps_${dep}"
4265     prepend "${lib}_deps" $dep
4266 }
4267
4268 # merge deps lib components
4269 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4270 merge_deps() {
4271     lib=$1
4272     shift
4273     for comp in $*; do
4274         enabled $comp || continue
4275         eval "dep=\"\$${comp}_deps\""
4276         for d in $dep; do
4277             add_dep $lib $d
4278         done
4279     done
4280 }
4281
4282 merge_deps libavfilter $FILTER_LIST
4283
4284 echo "install prefix            $prefix"
4285 echo "source path               $source_path"
4286 echo "C compiler                $cc"
4287 echo "ARCH                      $arch ($cpu)"
4288 if test "$build_suffix" != ""; then
4289     echo "build suffix              $build_suffix"
4290 fi
4291 if test "$progs_suffix" != ""; then
4292     echo "progs suffix              $progs_suffix"
4293 fi
4294 if test "$extra_version" != ""; then
4295     echo "version string suffix     $extra_version"
4296 fi
4297 echo "big-endian                ${bigendian-no}"
4298 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4299 if enabled x86; then
4300     echo "${yasmexe}                      ${yasm-no}"
4301     echo "MMX enabled               ${mmx-no}"
4302     echo "MMXEXT enabled            ${mmxext-no}"
4303     echo "3DNow! enabled            ${amd3dnow-no}"
4304     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4305     echo "SSE enabled               ${sse-no}"
4306     echo "SSSE3 enabled             ${ssse3-no}"
4307     echo "AVX enabled               ${avx-no}"
4308     echo "FMA4 enabled              ${fma4-no}"
4309     echo "CMOV enabled              ${cmov-no}"
4310     echo "CMOV is fast              ${fast_cmov-no}"
4311     echo "EBX available             ${ebx_available-no}"
4312     echo "EBP available             ${ebp_available-no}"
4313 fi
4314 if enabled arm; then
4315     echo "ARMv5TE enabled           ${armv5te-no}"
4316     echo "ARMv6 enabled             ${armv6-no}"
4317     echo "ARMv6T2 enabled           ${armv6t2-no}"
4318     echo "VFP enabled               ${vfp-no}"
4319     echo "NEON enabled              ${neon-no}"
4320     echo "THUMB enabled             ${thumb-no}"
4321 fi
4322 if enabled mips; then
4323     echo "MIPS FPU enabled          ${mipsfpu-no}"
4324     echo "MIPS32R2 enabled          ${mips32r2-no}"
4325     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4326     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4327 fi
4328 if enabled ppc; then
4329     echo "AltiVec enabled           ${altivec-no}"
4330     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4331     echo "dcbzl available           ${dcbzl-no}"
4332 fi
4333 if enabled sparc; then
4334     echo "VIS enabled               ${vis-no}"
4335 fi
4336 echo "debug symbols             ${debug-no}"
4337 echo "strip symbols             ${stripping-no}"
4338 echo "optimize for size         ${small-no}"
4339 echo "optimizations             ${optimizations-no}"
4340 echo "static                    ${static-no}"
4341 echo "shared                    ${shared-no}"
4342 echo "postprocessing support    ${postproc-no}"
4343 echo "new filter support        ${avfilter-no}"
4344 echo "network support           ${network-no}"
4345 echo "threading support         ${thread_type-no}"
4346 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4347 echo "SDL support               ${sdl-no}"
4348 echo "texi2html enabled         ${texi2html-no}"
4349 echo "perl enabled              ${perl-no}"
4350 echo "pod2man enabled           ${pod2man-no}"
4351 echo "makeinfo enabled          ${makeinfo-no}"
4352 test -n "$random_seed" &&
4353     echo "random seed               ${random_seed}"
4354 echo
4355
4356 echo "External libraries:"
4357 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4358 echo
4359
4360 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4361     echo "Enabled ${type}s:"
4362     eval list=\$$(toupper $type)_LIST
4363     print_enabled '_*' $list | print_3_columns
4364     echo
4365 done
4366
4367 license="LGPL version 2.1 or later"
4368 if enabled nonfree; then
4369     license="nonfree and unredistributable"
4370 elif enabled gplv3; then
4371     license="GPL version 3 or later"
4372 elif enabled lgplv3; then
4373     license="LGPL version 3 or later"
4374 elif enabled gpl; then
4375     license="GPL version 2 or later"
4376 fi
4377
4378 echo "License: $license"
4379
4380 echo "Creating config.mak and config.h..."
4381
4382 test -e Makefile || $ln_s "$source_path/Makefile" .
4383
4384 enabled stripping || strip="echo skipping strip"
4385
4386 config_files="$TMPH config.mak"
4387
4388 cat > config.mak <<EOF
4389 # Automatically generated by configure - do not modify!
4390 ifndef FFMPEG_CONFIG_MAK
4391 FFMPEG_CONFIG_MAK=1
4392 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4393 prefix=$prefix
4394 LIBDIR=\$(DESTDIR)$libdir
4395 SHLIBDIR=\$(DESTDIR)$shlibdir
4396 INCDIR=\$(DESTDIR)$incdir
4397 BINDIR=\$(DESTDIR)$bindir
4398 DATADIR=\$(DESTDIR)$datadir
4399 MANDIR=\$(DESTDIR)$mandir
4400 SRC_PATH=$source_path
4401 ifndef MAIN_MAKEFILE
4402 SRC_PATH:=\$(SRC_PATH:.%=..%)
4403 endif
4404 CC_IDENT=$cc_ident
4405 ARCH=$arch
4406 CC=$cc
4407 CXX=$cxx
4408 AS=$as
4409 LD=$ld
4410 DEPCC=$dep_cc
4411 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4412 DEPAS=$as
4413 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4414 YASM=$yasmexe
4415 DEPYASM=$yasmexe
4416 AR=$ar
4417 ARFLAGS=$arflags
4418 AR_O=$ar_o
4419 RANLIB=$ranlib
4420 CP=cp -p
4421 LN_S=$ln_s
4422 STRIP=$strip
4423 CPPFLAGS=$CPPFLAGS
4424 CFLAGS=$CFLAGS
4425 CXXFLAGS=$CXXFLAGS
4426 ASFLAGS=$ASFLAGS
4427 AS_C=$AS_C
4428 AS_O=$AS_O
4429 CC_C=$CC_C
4430 CC_E=$CC_E
4431 CC_O=$CC_O
4432 CXX_C=$CXX_C
4433 CXX_O=$CXX_O
4434 LD_O=$LD_O
4435 LD_LIB=$LD_LIB
4436 LD_PATH=$LD_PATH
4437 DLLTOOL=$dlltool
4438 LDFLAGS=$LDFLAGS
4439 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4440 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4441 YASMFLAGS=$YASMFLAGS
4442 BUILDSUF=$build_suffix
4443 PROGSSUF=$progs_suffix
4444 FULLNAME=$FULLNAME
4445 LIBPREF=$LIBPREF
4446 LIBSUF=$LIBSUF
4447 LIBNAME=$LIBNAME
4448 SLIBPREF=$SLIBPREF
4449 SLIBSUF=$SLIBSUF
4450 EXESUF=$EXESUF
4451 EXTRA_VERSION=$extra_version
4452 CCDEP=$CCDEP
4453 CXXDEP=$CXXDEP
4454 CCDEP_FLAGS=$CCDEP_FLAGS
4455 ASDEP=$ASDEP
4456 ASDEP_FLAGS=$ASDEP_FLAGS
4457 CC_DEPFLAGS=$CC_DEPFLAGS
4458 AS_DEPFLAGS=$AS_DEPFLAGS
4459 HOSTCC=$host_cc
4460 HOSTLD=$host_ld
4461 HOSTCFLAGS=$host_cflags
4462 HOSTCPPFLAGS=$host_cppflags
4463 HOSTEXESUF=$HOSTEXESUF
4464 HOSTLDFLAGS=$host_ldflags
4465 HOSTLIBS=$host_libs
4466 DEPHOSTCC=$host_cc
4467 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4468 HOSTCCDEP=$HOSTCCDEP
4469 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4470 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4471 HOSTCC_C=$HOSTCC_C
4472 HOSTCC_O=$HOSTCC_O
4473 HOSTLD_O=$HOSTLD_O
4474 TARGET_EXEC=$target_exec
4475 TARGET_PATH=$target_path
4476 LIBS-ffplay=$sdl_libs
4477 CFLAGS-ffplay=$sdl_cflags
4478 ZLIB=$($ldflags_filter -lz)
4479 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4480 EXTRALIBS=$extralibs
4481 COMPAT_OBJS=$compat_objs
4482 EXEOBJS=$exeobjs
4483 INSTALL=$install
4484 LIBTARGET=${LIBTARGET}
4485 SLIBNAME=${SLIBNAME}
4486 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4487 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4488 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4489 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4490 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4491 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4492 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4493 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4494 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4495 NOREDZONE_FLAGS=$noredzone_flags
4496 EOF
4497
4498 get_version(){
4499     lcname=lib${1}
4500     name=$(toupper $lcname)
4501     file=$source_path/$lcname/version.h
4502     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4503     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4504     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4505     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4506     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4507 }
4508
4509 map 'get_version $v' $LIBRARY_LIST
4510
4511 cat > $TMPH <<EOF
4512 /* Automatically generated by configure - do not modify! */
4513 #ifndef FFMPEG_CONFIG_H
4514 #define FFMPEG_CONFIG_H
4515 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4516 #define FFMPEG_LICENSE "$(c_escape $license)"
4517 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4518 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4519 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4520 #define av_restrict $_restrict
4521 #define EXTERN_PREFIX "${extern_prefix}"
4522 #define EXTERN_ASM ${extern_prefix}
4523 #define SLIBSUF "$SLIBSUF"
4524 #define HAVE_MMX2 HAVE_MMXEXT
4525 EOF
4526
4527 test -n "$assert_level" &&
4528     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4529
4530 test -n "$malloc_prefix" &&
4531     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4532
4533 if enabled yasm; then
4534     append config_files $TMPASM
4535     printf '' >$TMPASM
4536 fi
4537
4538 print_config ARCH_   "$config_files" $ARCH_LIST
4539 print_config HAVE_   "$config_files" $HAVE_LIST
4540 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4541                                      $CONFIG_EXTRA      \
4542                                      $ALL_COMPONENTS    \
4543
4544 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4545 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4546
4547 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4548 cp_if_changed $TMPH config.h
4549 touch .config
4550
4551 enabled yasm && cp_if_changed $TMPASM config.asm
4552
4553 cat > $TMPH <<EOF
4554 /* Generated by ffconf */
4555 #ifndef AVUTIL_AVCONFIG_H
4556 #define AVUTIL_AVCONFIG_H
4557 EOF
4558
4559 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4560
4561 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4562
4563 cp_if_changed $TMPH libavutil/avconfig.h
4564
4565 if test -n "$WARNINGS"; then
4566     printf "\n$WARNINGS"
4567     enabled fatal_warnings && exit 1
4568 fi
4569
4570 # build pkg-config files
4571
4572 pkgconfig_generate(){
4573     name=$1
4574     shortname=${name#lib}${build_suffix}
4575     comment=$2
4576     version=$3
4577     libs=$4
4578     requires=$5
4579     enabled ${name#lib} || return 0
4580     mkdir -p $name
4581     cat <<EOF > $name/$name${build_suffix}.pc
4582 prefix=$prefix
4583 exec_prefix=\${prefix}
4584 libdir=$libdir
4585 includedir=$incdir
4586
4587 Name: $name
4588 Description: $comment
4589 Version: $version
4590 Requires: $(enabled shared || echo $requires)
4591 Requires.private: $(enabled shared && echo $requires)
4592 Conflicts:
4593 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4594 Libs.private: $(enabled shared && echo $libs)
4595 Cflags: -I\${includedir}
4596 EOF
4597
4598 mkdir -p doc/examples/pc-uninstalled
4599 includedir=${source_path}
4600 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4601     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4602 prefix=
4603 exec_prefix=
4604 libdir=\${pcfiledir}/../../../$name
4605 includedir=${includedir}
4606
4607 Name: $name
4608 Description: $comment
4609 Version: $version
4610 Requires: $requires
4611 Conflicts:
4612 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4613 Cflags: -I\${includedir}
4614 EOF
4615 }
4616
4617 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4618 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4619 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4620 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4621 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4622 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4623 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4624 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4625
4626 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4627 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4628
4629 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4630 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4631 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4632 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4633 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4634 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4635 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4636 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4637 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4638
4639 fix_ffmpeg_remote(){
4640     git_remote_from=$1
4641     git_remote_to=$2
4642     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4643     if [ "$fixme_remote" != "" ]; then
4644         echolog "
4645 Outdated domain in git config, the official domain for ffmpeg git is since
4646 November 2011, source.ffmpeg.org, both the old and the new point to the same
4647 repository and server. To update it enter the following commands:
4648 "
4649         for remote in $fixme_remote; do
4650             echolog "git remote set-url $remote $git_remote_to"
4651         done
4652     fi
4653 }
4654
4655 if test -f "$source_path/.git/config"; then
4656     remote_from=git.videolan.org
4657     remote_to=source.ffmpeg.org
4658     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4659     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4660 fi