9dd01266a370966c70b2f74fa329e7c9326cf9ce
[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   --enable-x11grab         enable X11 grabbing [no]
134   --disable-network        disable network support [no]
135   --disable-dct            disable DCT code
136   --disable-dwt            disable DWT code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --enable-dxva2           enable DXVA2 code
145   --enable-vaapi           enable VAAPI code [autodetect]
146   --enable-vda             enable VDA code   [autodetect]
147   --enable-vdpau           enable VDPAU code [autodetect]
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --enable-bzlib           enable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
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-zlib            enable zlib [autodetect]
238
239 Advanced options (experts only):
240   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
241   --enable-cross-compile   assume a cross-compiler is used
242   --sysroot=PATH           root of cross-build tree
243   --sysinclude=PATH        location of cross-build system headers
244   --target-os=OS           compiler targets OS [$target_os]
245   --target-exec=CMD        command to run executables on target
246   --target-path=DIR        path to view of build directory on target
247   --toolchain=NAME         set tool defaults according to NAME
248   --nm=NM                  use nm tool NM [$nm_default]
249   --ar=AR                  use archive tool AR [$ar_default]
250   --as=AS                  use assembler AS [$as_default]
251   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
252   --cc=CC                  use C compiler CC [$cc_default]
253   --cxx=CXX                use C compiler CXX [$cxx_default]
254   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
255   --ld=LD                  use linker LD [$ld_default]
256   --host-cc=HOSTCC         use host C compiler HOSTCC
257   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
258   --host-ld=HOSTLD         use host linker HOSTLD
259   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
260   --host-libs=HLIBS        use libs HLIBS when linking for host
261   --host-os=OS             compiler host OS [$target_os]
262   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
263   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
264   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
265   --extra-libs=ELIBS       add ELIBS [$ELIBS]
266   --extra-version=STRING   version string suffix []
267   --optflags=OPTFLAGS      override optimization-related compiler flags
268   --build-suffix=SUFFIX    library name suffix []
269   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
270   --progs-suffix=SUFFIX    program name suffix []
271   --arch=ARCH              select architecture [$arch]
272   --cpu=CPU                select the minimum required CPU (affects
273                            instruction selection, may crash on older CPUs)
274   --enable-pic             build position-independent code
275   --enable-sram            allow use of on-chip SRAM
276   --enable-thumb           compile for Thumb instruction set
277   --disable-symver         disable symbol versioning
278   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
279   --disable-safe-bitstream-reader
280                            disable buffer boundary checking in bitreaders
281                            (faster, but may crash)
282   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
283   --enable-lto             use link-time optimization
284
285 Optimization options (experts only):
286   --disable-asm            disable all assembler optimizations
287   --disable-altivec        disable AltiVec optimizations
288   --disable-amd3dnow       disable 3DNow! optimizations
289   --disable-amd3dnowext    disable 3DNow! extended optimizations
290   --disable-mmx            disable MMX optimizations
291   --disable-mmxext         disable MMXEXT optimizations
292   --disable-sse            disable SSE optimizations
293   --disable-sse2           disable SSE2 optimizations
294   --disable-sse3           disable SSE3 optimizations
295   --disable-ssse3          disable SSSE3 optimizations
296   --disable-sse4           disable SSE4 optimizations
297   --disable-sse42          disable SSE4.2 optimizations
298   --disable-avx            disable AVX optimizations
299   --disable-fma4           disable FMA4 optimizations
300   --disable-armv5te        disable armv5te optimizations
301   --disable-armv6          disable armv6 optimizations
302   --disable-armv6t2        disable armv6t2 optimizations
303   --disable-vfp            disable VFP optimizations
304   --disable-neon           disable NEON optimizations
305   --disable-vis            disable VIS optimizations
306   --disable-inline-asm     disable use of inline assembler
307   --disable-yasm           disable use of yasm assembler
308   --disable-mips32r2       disable MIPS32R2 optimizations
309   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
310   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
311   --disable-mipsfpu        disable floating point MIPS optimizations
312   --disable-fast-unaligned consider unaligned accesses slow
313
314 Developer options (useful when working on FFmpeg itself):
315   --enable-coverage        build with test coverage instrumentation
316   --disable-debug          disable debugging symbols
317   --enable-debug=LEVEL     set the debug level [$debuglevel]
318   --disable-optimizations  disable compiler optimizations
319   --enable-extra-warnings  enable more compiler warnings
320   --disable-stripping      disable stripping of executables and shared libraries
321   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
322                            2 causes a slowdown at runtime.
323   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
324   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
325                            leaks and errors, using the specified valgrind binary.
326                            Cannot be combined with --target-exec
327   --enable-ftrapv          Trap arithmetic overflows
328   --samples=PATH           location of test samples for FATE, if not set use
329                            \$FATE_SAMPLES at make invocation time.
330   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
331                            should be used only for debugging purposes)
332   --enable-random          randomly enable/disable components
333   --disable-random
334   --enable-random=LIST     randomly enable/disable specific components or
335   --disable-random=LIST    component groups. LIST is a comma-separated list
336                            of NAME[:PROB] entries where NAME is a component
337                            (group) and PROB the probability associated with
338                            NAME (default 0.5).
339   --random-seed=VALUE      seed value for --enable/disable-random
340
341 NOTE: Object files are built at the place where configure is launched.
342 EOF
343   exit 0
344 }
345
346 quotes='""'
347
348 log(){
349     echo "$@" >> $logfile
350 }
351
352 log_file(){
353     log BEGIN $1
354     pr -n -t $1 >> $logfile
355     log END $1
356 }
357
358 echolog(){
359     log "$@"
360     echo "$@"
361 }
362
363 warn(){
364     log "WARNING: $*"
365     WARNINGS="${WARNINGS}WARNING: $*\n"
366 }
367
368 die(){
369     echolog "$@"
370     cat <<EOF
371
372 If you think configure made a mistake, make sure you are using the latest
373 version from Git.  If the latest version fails, report the problem to the
374 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
375 EOF
376     if disabled logging; then
377         cat <<EOF
378 Rerun configure with logging enabled (do not use --disable-logging), and
379 include the log this produces with your report.
380 EOF
381     else
382         cat <<EOF
383 Include the log file "$logfile" produced by configure as this will help
384 solving the problem.
385 EOF
386     fi
387     exit 1
388 }
389
390 # Avoid locale weirdness, besides we really just want to translate ASCII.
391 toupper(){
392     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
393 }
394
395 tolower(){
396     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
397 }
398
399 c_escape(){
400     echo "$*" | sed 's/["\\]/\\\0/g'
401 }
402
403 sh_quote(){
404     v=$(echo "$1" | sed "s/'/'\\\\''/g")
405     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
406     echo "$v"
407 }
408
409 cleanws(){
410     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
411 }
412
413 filter(){
414     pat=$1
415     shift
416     for v; do
417         eval "case $v in $pat) echo $v ;; esac"
418     done
419 }
420
421 filter_out(){
422     pat=$1
423     shift
424     for v; do
425         eval "case $v in $pat) ;; *) echo $v ;; esac"
426     done
427 }
428
429 map(){
430     m=$1
431     shift
432     for v; do eval $m; done
433 }
434
435 add_suffix(){
436     suffix=$1
437     shift
438     for v; do echo ${v}${suffix}; done
439 }
440
441 set_all(){
442     value=$1
443     shift
444     for var in $*; do
445         eval $var=$value
446     done
447 }
448
449 set_weak(){
450     value=$1
451     shift
452     for var; do
453         eval : \${$var:=$value}
454     done
455 }
456
457 set_safe(){
458     var=$1
459     shift
460     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
461 }
462
463 get_safe(){
464     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
465 }
466
467 pushvar(){
468     for var in $*; do
469         eval level=\${${var}_level:=0}
470         eval ${var}_${level}="\$$var"
471         eval ${var}_level=$(($level+1))
472     done
473 }
474
475 popvar(){
476     for var in $*; do
477         eval level=\${${var}_level:-0}
478         test $level = 0 && continue
479         eval level=$(($level-1))
480         eval $var="\${${var}_${level}}"
481         eval ${var}_level=$level
482         eval unset ${var}_${level}
483     done
484 }
485
486 enable(){
487     set_all yes $*
488 }
489
490 disable(){
491     set_all no $*
492 }
493
494 enable_weak(){
495     set_weak yes $*
496 }
497
498 disable_weak(){
499     set_weak no $*
500 }
501
502 enable_safe(){
503     for var; do
504         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
505     done
506 }
507
508 disable_safe(){
509     for var; do
510         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511     done
512 }
513
514 do_enable_deep(){
515     for var; do
516         enabled $var && continue
517         eval sel="\$${var}_select"
518         eval sgs="\$${var}_suggest"
519         pushvar var sgs
520         enable_deep $sel
521         popvar sgs
522         enable_deep_weak $sgs
523         popvar var
524     done
525 }
526
527 enable_deep(){
528     do_enable_deep $*
529     enable $*
530 }
531
532 enable_deep_weak(){
533     do_enable_deep $*
534     enable_weak $*
535 }
536
537 enabled(){
538     test "${1#!}" = "$1" && op== || op=!=
539     eval test "x\$${1#!}" $op "xyes"
540 }
541
542 disabled(){
543     test "${1#!}" = "$1" && op== || op=!=
544     eval test "x\$${1#!}" $op "xno"
545 }
546
547 enabled_all(){
548     for opt; do
549         enabled $opt || return 1
550     done
551 }
552
553 disabled_all(){
554     for opt; do
555         disabled $opt || return 1
556     done
557 }
558
559 enabled_any(){
560     for opt; do
561         enabled $opt && return 0
562     done
563 }
564
565 disabled_any(){
566     for opt; do
567         disabled $opt && return 0
568     done
569     return 1
570 }
571
572 set_default(){
573     for opt; do
574         eval : \${$opt:=\$${opt}_default}
575     done
576 }
577
578 is_in(){
579     value=$1
580     shift
581     for var in $*; do
582         [ $var = $value ] && return 0
583     done
584     return 1
585 }
586
587 do_check_deps(){
588     for cfg; do
589         cfg="${cfg#!}"
590         enabled ${cfg}_checking && die "Circular dependency for $cfg."
591         disabled ${cfg}_checking && continue
592         enable ${cfg}_checking
593         append allopts $cfg
594
595         eval dep_all="\$${cfg}_deps"
596         eval dep_any="\$${cfg}_deps_any"
597         eval dep_sel="\$${cfg}_select"
598         eval dep_sgs="\$${cfg}_suggest"
599         eval dep_ifa="\$${cfg}_if"
600         eval dep_ifn="\$${cfg}_if_any"
601
602         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
603         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
604         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
605
606         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
607         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
608         enabled_all  $dep_all || disable $cfg
609         enabled_any  $dep_any || disable $cfg
610         disabled_any $dep_sel && disable $cfg
611
612         if enabled $cfg; then
613             enable_deep $dep_sel
614             enable_deep_weak $dep_sgs
615         fi
616
617         disable ${cfg}_checking
618     done
619 }
620
621 check_deps(){
622     unset allopts
623
624     do_check_deps "$@"
625
626     for cfg in $allopts; do
627         enabled $cfg || continue
628         eval dep_extralibs="\$${cfg}_extralibs"
629         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
630     done
631 }
632
633 print_config(){
634     pfx=$1
635     files=$2
636     shift 2
637     map 'eval echo "$v \${$v:-no}"' "$@" |
638     awk "BEGIN { split(\"$files\", files) }
639         {
640             c = \"$pfx\" toupper(\$1);
641             v = \$2;
642             sub(/yes/, 1, v);
643             sub(/no/,  0, v);
644             for (f in files) {
645                 file = files[f];
646                 if (file ~ /\\.h\$/) {
647                     printf(\"#define %s %d\\n\", c, v) >>file;
648                 } else if (file ~ /\\.asm\$/) {
649                     printf(\"%%define %s %d\\n\", c, v) >>file;
650                 } else if (file ~ /\\.mak\$/) {
651                     n = -v ? \"\" : \"!\";
652                     printf(\"%s%s=yes\\n\", n, c) >>file;
653                 }
654             }
655         }"
656 }
657
658 print_enabled(){
659     suf=$1
660     shift
661     for v; do
662         enabled $v && printf "%s\n" ${v%$suf};
663     done
664 }
665
666 append(){
667     var=$1
668     shift
669     eval "$var=\"\$$var $*\""
670 }
671
672 prepend(){
673     var=$1
674     shift
675     eval "$var=\"$* \$$var\""
676 }
677
678 add_cppflags(){
679     append CPPFLAGS "$@"
680 }
681
682 add_cflags(){
683     append CFLAGS $($cflags_filter "$@")
684 }
685
686 add_cxxflags(){
687     append CXXFLAGS $($cflags_filter "$@")
688 }
689
690 add_asflags(){
691     append ASFLAGS $($asflags_filter "$@")
692 }
693
694 add_ldflags(){
695     append LDFLAGS $($ldflags_filter "$@")
696 }
697
698 add_extralibs(){
699     prepend extralibs $($ldflags_filter "$@")
700 }
701
702 add_host_cflags(){
703     append host_cflags $($host_cflags_filter "$@")
704 }
705
706 add_host_ldflags(){
707     append host_ldflags $($host_ldflags_filter "$@")
708 }
709
710 add_compat(){
711     append compat_objs $1
712     shift
713     map 'add_cppflags -D$v' "$@"
714 }
715
716 check_cmd(){
717     log "$@"
718     "$@" >> $logfile 2>&1
719 }
720
721 cc_o(){
722     eval printf '%s\\n' $CC_O
723 }
724
725 cc_e(){
726     eval printf '%s\\n' $CC_E
727 }
728
729 check_cc(){
730     log check_cc "$@"
731     cat > $TMPC
732     log_file $TMPC
733     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
734 }
735
736 check_cxx(){
737     log check_cxx "$@"
738     cat > $TMPCPP
739     log_file $TMPCPP
740     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
741 }
742
743 check_cpp(){
744     log check_cpp "$@"
745     cat > $TMPC
746     log_file $TMPC
747     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
748 }
749
750 as_o(){
751     eval printf '%s\\n' $AS_O
752 }
753
754 check_as(){
755     log check_as "$@"
756     cat > $TMPS
757     log_file $TMPS
758     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
759 }
760
761 check_inline_asm(){
762     log check_inline_asm "$@"
763     name="$1"
764     code="$2"
765     shift 2
766     disable $name
767     check_cc "$@" <<EOF && enable $name
768 void foo(void){ __asm__ volatile($code); }
769 EOF
770 }
771
772 check_insn(){
773     log check_insn "$@"
774     check_inline_asm ${1}_inline "\"$2\""
775     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
776 }
777
778 check_yasm(){
779     log check_yasm "$@"
780     echo "$1" > $TMPS
781     log_file $TMPS
782     shift 1
783     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
784 }
785
786 ld_o(){
787     eval printf '%s\\n' $LD_O
788 }
789
790 check_ld(){
791     log check_ld "$@"
792     type=$1
793     shift 1
794     flags=$(filter_out '-l*|*.so' $@)
795     libs=$(filter '-l*|*.so' $@)
796     check_$type $($cflags_filter $flags) || return
797     flags=$($ldflags_filter $flags)
798     libs=$($ldflags_filter $libs)
799     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
800 }
801
802 check_code(){
803     log check_code "$@"
804     check=$1
805     headers=$2
806     code=$3
807     shift 3
808     {
809         for hdr in $headers; do
810             echo "#include <$hdr>"
811         done
812         echo "int main(void) { $code; return 0; }"
813     } | check_$check "$@"
814 }
815
816 check_cppflags(){
817     log check_cppflags "$@"
818     check_cc "$@" <<EOF && append CPPFLAGS "$@"
819 int x;
820 EOF
821 }
822
823 check_cflags(){
824     log check_cflags "$@"
825     set -- $($cflags_filter "$@")
826     check_cc "$@" <<EOF && append CFLAGS "$@"
827 int x;
828 EOF
829 }
830
831 check_cxxflags(){
832     log check_cxxflags "$@"
833     set -- $($cflags_filter "$@")
834     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
835 int x;
836 EOF
837 }
838
839 test_ldflags(){
840     log test_ldflags "$@"
841     check_ld "cc" "$@" <<EOF
842 int main(void){ return 0; }
843 EOF
844 }
845
846 check_ldflags(){
847     log check_ldflags "$@"
848     test_ldflags "$@" && add_ldflags "$@"
849 }
850
851 check_header(){
852     log check_header "$@"
853     header=$1
854     shift
855     disable_safe $header
856     check_cpp "$@" <<EOF && enable_safe $header
857 #include <$header>
858 int x;
859 EOF
860 }
861
862 check_func(){
863     log check_func "$@"
864     func=$1
865     shift
866     disable $func
867     check_ld "cc" "$@" <<EOF && enable $func
868 extern int $func();
869 int main(void){ $func(); }
870 EOF
871 }
872
873 check_mathfunc(){
874     log check_mathfunc "$@"
875     func=$1
876     narg=$2
877     shift 2
878     test $narg = 2 && args="f, g" || args="f"
879     disable $func
880     check_ld "cc" "$@" <<EOF && enable $func
881 #include <math.h>
882 float foo(float f, float g) { return $func($args); }
883 int main(void){ return (int) foo; }
884 EOF
885 }
886
887 check_func_headers(){
888     log check_func_headers "$@"
889     headers=$1
890     funcs=$2
891     shift 2
892     {
893         for hdr in $headers; do
894             echo "#include <$hdr>"
895         done
896         for func in $funcs; do
897             echo "long check_$func(void) { return (long) $func; }"
898         done
899         echo "int main(void) { return 0; }"
900     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
901 }
902
903 check_class_headers_cpp(){
904     log check_class_headers_cpp "$@"
905     headers=$1
906     classes=$2
907     shift 2
908     {
909         for hdr in $headers; do
910             echo "#include <$hdr>"
911         done
912         echo "int main(void) { "
913         i=1
914         for class in $classes; do
915             echo "$class obj$i;"
916             i=$(expr $i + 1)
917         done
918         echo "return 0; }"
919     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
920 }
921
922 check_cpp_condition(){
923     log check_cpp_condition "$@"
924     header=$1
925     condition=$2
926     shift 2
927     check_cpp "$@" <<EOF
928 #include <$header>
929 #if !($condition)
930 #error "unsatisfied condition: $condition"
931 #endif
932 EOF
933 }
934
935 check_lib(){
936     log check_lib "$@"
937     header="$1"
938     func="$2"
939     shift 2
940     check_header $header && check_func $func "$@" && add_extralibs "$@"
941 }
942
943 check_lib2(){
944     log check_lib2 "$@"
945     headers="$1"
946     funcs="$2"
947     shift 2
948     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
949 }
950
951 check_lib_cpp(){
952     log check_lib_cpp "$@"
953     headers="$1"
954     classes="$2"
955     shift 2
956     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
957 }
958
959 check_pkg_config(){
960     log check_pkg_config "$@"
961     pkg="$1"
962     headers="$2"
963     funcs="$3"
964     shift 3
965     $pkg_config --exists $pkg 2>/dev/null || return
966     pkg_cflags=$($pkg_config --cflags $pkg)
967     pkg_libs=$($pkg_config --libs $pkg)
968     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
969         set_safe ${pkg}_cflags $pkg_cflags   &&
970         set_safe ${pkg}_libs   $pkg_libs
971 }
972
973 check_exec(){
974     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
975 }
976
977 check_exec_crash(){
978     code=$(cat)
979
980     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
981     # are safe but may not be available everywhere.  Thus we use
982     # raise(SIGTERM) instead.  The check is run in a subshell so we
983     # can redirect the "Terminated" message from the shell.  SIGBUS
984     # is not defined by standard C so it is used conditionally.
985
986     (check_exec "$@") >> $logfile 2>&1 <<EOF
987 #include <signal.h>
988 static void sighandler(int sig){
989     raise(SIGTERM);
990 }
991 int func(void){
992     $code
993 }
994 int (*func_ptr)(void) = func;
995 int main(void){
996     signal(SIGILL, sighandler);
997     signal(SIGFPE, sighandler);
998     signal(SIGSEGV, sighandler);
999 #ifdef SIGBUS
1000     signal(SIGBUS, sighandler);
1001 #endif
1002     return func_ptr();
1003 }
1004 EOF
1005 }
1006
1007 check_type(){
1008     log check_type "$@"
1009     headers=$1
1010     type=$2
1011     shift 2
1012     disable_safe "$type"
1013     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1014 }
1015
1016 check_struct(){
1017     log check_type "$@"
1018     headers=$1
1019     struct=$2
1020     member=$3
1021     shift 3
1022     disable_safe "${struct}_${member}"
1023     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1024         enable_safe "${struct}_${member}"
1025 }
1026
1027 require(){
1028     name="$1"
1029     header="$2"
1030     func="$3"
1031     shift 3
1032     check_lib $header $func "$@" || die "ERROR: $name not found"
1033 }
1034
1035 require2(){
1036     name="$1"
1037     headers="$2"
1038     func="$3"
1039     shift 3
1040     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1041 }
1042
1043 require_cpp(){
1044     name="$1"
1045     headers="$2"
1046     classes="$3"
1047     shift 3
1048     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1049 }
1050
1051 require_pkg_config(){
1052     pkg="$1"
1053     check_pkg_config "$@" || die "ERROR: $pkg not found"
1054     add_cflags    $(get_safe ${pkg}_cflags)
1055     add_extralibs $(get_safe ${pkg}_libs)
1056 }
1057
1058 hostcc_o(){
1059     eval printf '%s\\n' $HOSTCC_O
1060 }
1061
1062 check_host_cc(){
1063     log check_host_cc "$@"
1064     cat > $TMPC
1065     log_file $TMPC
1066     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1067 }
1068
1069 check_host_cflags(){
1070     log check_host_cflags "$@"
1071     set -- $($host_cflags_filter "$@")
1072     check_host_cc "$@" <<EOF && append host_cflags "$@"
1073 int x;
1074 EOF
1075 }
1076
1077 apply(){
1078     file=$1
1079     shift
1080     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1081 }
1082
1083 cp_if_changed(){
1084     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1085     mkdir -p "$(dirname $2)"
1086     $cp_f "$1" "$2"
1087 }
1088
1089 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1090 # system-dependent things.
1091
1092 COMPONENT_LIST="
1093     bsfs
1094     decoders
1095     demuxers
1096     encoders
1097     filters
1098     hwaccels
1099     indevs
1100     muxers
1101     outdevs
1102     parsers
1103     protocols
1104 "
1105
1106 DOCUMENT_LIST="
1107     doc
1108     htmlpages
1109     manpages
1110     podpages
1111     txtpages
1112 "
1113
1114 HWACCEL_LIST="
1115     dxva2
1116     vaapi
1117     vda
1118     vdpau
1119 "
1120
1121 LIBRARY_LIST="
1122     avcodec
1123     avdevice
1124     avfilter
1125     avformat
1126     avresample
1127     avutil
1128     postproc
1129     swresample
1130     swscale
1131 "
1132
1133 PROGRAM_LIST="
1134     ffplay
1135     ffprobe
1136     ffserver
1137     ffmpeg
1138 "
1139
1140 CONFIG_LIST="
1141     $COMPONENT_LIST
1142     $DOCUMENT_LIST
1143     $HWACCEL_LIST
1144     $LIBRARY_LIST
1145     $PROGRAM_LIST
1146     avisynth
1147     bzlib
1148     crystalhd
1149     dct
1150     dwt
1151     fast_unaligned
1152     fft
1153     fontconfig
1154     frei0r
1155     ftrapv
1156     gnutls
1157     gpl
1158     gray
1159     hardcoded_tables
1160     incompatible_fork_abi
1161     libaacplus
1162     libass
1163     libbluray
1164     libcaca
1165     libcdio
1166     libcelt
1167     libdc1394
1168     libfaac
1169     libfdk_aac
1170     libflite
1171     libfreetype
1172     libgsm
1173     libiec61883
1174     libilbc
1175     libmodplug
1176     libmp3lame
1177     libnut
1178     libopencore_amrnb
1179     libopencore_amrwb
1180     libopencv
1181     libopenjpeg
1182     libopus
1183     libpulse
1184     librtmp
1185     libschroedinger
1186     libsoxr
1187     libspeex
1188     libstagefright_h264
1189     libtheora
1190     libtwolame
1191     libutvideo
1192     libv4l2
1193     libvo_aacenc
1194     libvo_amrwbenc
1195     libvorbis
1196     libvpx
1197     libx264
1198     libxavs
1199     libxvid
1200     lsp
1201     lzo
1202     mdct
1203     memalign_hack
1204     memory_poisoning
1205     network
1206     nonfree
1207     openal
1208     openssl
1209     pic
1210     rdft
1211     runtime_cpudetect
1212     safe_bitstream_reader
1213     shared
1214     small
1215     sram
1216     static
1217     swscale_alpha
1218     thumb
1219     version3
1220     xmm_clobber_test
1221     x11grab
1222     zlib
1223 "
1224
1225 THREADS_LIST='
1226     pthreads
1227     w32threads
1228     os2threads
1229 '
1230
1231 ARCH_LIST='
1232     aarch64
1233     alpha
1234     arm
1235     avr32
1236     avr32_ap
1237     avr32_uc
1238     bfin
1239     ia64
1240     m68k
1241     mips
1242     mips64
1243     parisc
1244     ppc
1245     ppc64
1246     s390
1247     sh4
1248     sparc
1249     sparc64
1250     tilegx
1251     tilepro
1252     tomi
1253     x86
1254     x86_32
1255     x86_64
1256 '
1257
1258 ARCH_EXT_LIST_ARM='
1259     armv5te
1260     armv6
1261     armv6t2
1262     neon
1263     vfp
1264     vfpv3
1265 '
1266
1267 ARCH_EXT_LIST_X86='
1268     amd3dnow
1269     amd3dnowext
1270     avx
1271     fma4
1272     mmx
1273     mmxext
1274     sse
1275     sse2
1276     sse3
1277     sse4
1278     sse42
1279     ssse3
1280 '
1281
1282 ARCH_EXT_LIST="
1283     $ARCH_EXT_LIST_ARM
1284     $ARCH_EXT_LIST_X86
1285     altivec
1286     ppc4xx
1287     vis
1288     mipsfpu
1289     mips32r2
1290     mipsdspr1
1291     mipsdspr2
1292 "
1293
1294 HAVE_LIST_CMDLINE='
1295     inline_asm
1296     symver
1297     yasm
1298 '
1299
1300 HAVE_LIST_PUB='
1301     bigendian
1302     fast_unaligned
1303     incompatible_fork_abi
1304 '
1305
1306 MATH_FUNCS="
1307     atanf
1308     atan2f
1309     cbrt
1310     cbrtf
1311     cosf
1312     exp2
1313     exp2f
1314     expf
1315     isinf
1316     isnan
1317     ldexpf
1318     llrint
1319     llrintf
1320     log2
1321     log2f
1322     log10f
1323     lrint
1324     lrintf
1325     powf
1326     rint
1327     round
1328     roundf
1329     sinf
1330     trunc
1331     truncf
1332 "
1333
1334 HAVE_LIST="
1335     $ARCH_EXT_LIST
1336     $(add_suffix _external $ARCH_EXT_LIST)
1337     $(add_suffix _inline   $ARCH_EXT_LIST)
1338     $HAVE_LIST_CMDLINE
1339     $HAVE_LIST_PUB
1340     $THREADS_LIST
1341     $MATH_FUNCS
1342     access
1343     aligned_malloc
1344     aligned_stack
1345     alsa_asoundlib_h
1346     altivec_h
1347     arpa_inet_h
1348     asm_mod_q
1349     asm_mod_y
1350     asm_types_h
1351     attribute_may_alias
1352     attribute_packed
1353     cdio_paranoia_h
1354     cdio_paranoia_paranoia_h
1355     clock_gettime
1356     closesocket
1357     cmov
1358     CommandLineToArgvW
1359     cpunop
1360     CryptGenRandom
1361     dcbzl
1362     dev_bktr_ioctl_bt848_h
1363     dev_bktr_ioctl_meteor_h
1364     dev_ic_bt8xx_h
1365     dev_video_bktr_ioctl_bt848_h
1366     dev_video_meteor_ioctl_meteor_h
1367     direct_h
1368     dlfcn_h
1369     dlopen
1370     dos_paths
1371     dxva_h
1372     ebp_available
1373     ebx_available
1374     fast_64bit
1375     fast_clz
1376     fast_cmov
1377     fcntl
1378     fork
1379     getaddrinfo
1380     gethrtime
1381     getopt
1382     GetProcessAffinityMask
1383     GetProcessMemoryInfo
1384     GetProcessTimes
1385     GetSystemTimeAsFileTime
1386     getrusage
1387     getservbyport
1388     gettimeofday
1389     glob
1390     gnu_as
1391     gsm_h
1392     ibm_asm
1393     iconv
1394     inet_aton
1395     io_h
1396     isatty
1397     jack_port_get_latency_range
1398     kbhit
1399     ldbrx
1400     libdc1394_1
1401     libdc1394_2
1402     local_aligned_16
1403     local_aligned_8
1404     localtime_r
1405     loongson
1406     lzo1x_999_compress
1407     machine_ioctl_bt848_h
1408     machine_ioctl_meteor_h
1409     makeinfo
1410     malloc_h
1411     MapViewOfFile
1412     memalign
1413     mkstemp
1414     mm_empty
1415     mmap
1416     mprotect
1417     msvcrt
1418     nanosleep
1419     openjpeg_1_5_openjpeg_h
1420     PeekNamedPipe
1421     perl
1422     pod2man
1423     poll_h
1424     posix_memalign
1425     pthread_cancel
1426     rdtsc
1427     rsync_contimeout
1428     sched_getaffinity
1429     sdl
1430     sdl_video_size
1431     SetConsoleTextAttribute
1432     setmode
1433     setrlimit
1434     Sleep
1435     sndio_h
1436     socklen_t
1437     soundcard_h
1438     strerror_r
1439     struct_addrinfo
1440     struct_group_source_req
1441     struct_ip_mreq_source
1442     struct_ipv6_mreq
1443     struct_pollfd
1444     struct_rusage_ru_maxrss
1445     struct_sctp_event_subscribe
1446     struct_sockaddr_in6
1447     struct_sockaddr_sa_len
1448     struct_sockaddr_storage
1449     struct_v4l2_frmivalenum_discrete
1450     symver_asm_label
1451     symver_gnu_asm
1452     sysconf
1453     sysctl
1454     sys_mman_h
1455     sys_param_h
1456     sys_resource_h
1457     sys_select_h
1458     sys_soundcard_h
1459     sys_time_h
1460     sys_videoio_h
1461     termios_h
1462     texi2html
1463     threads
1464     unistd_h
1465     usleep
1466     vfp_args
1467     VirtualAlloc
1468     windows_h
1469     winsock2_h
1470     xform_asm
1471     xmm_clobbers
1472 "
1473
1474 # options emitted with CONFIG_ prefix but not available on the command line
1475 CONFIG_EXTRA="
1476     aandcttables
1477     ac3dsp
1478     audio_frame_queue
1479     error_resilience
1480     gcrypt
1481     golomb
1482     gplv3
1483     h264chroma
1484     h264dsp
1485     h264pred
1486     h264qpel
1487     huffman
1488     lgplv3
1489     lpc
1490     mpegaudio
1491     mpegaudiodsp
1492     mpegvideo
1493     mpegvideoenc
1494     nettle
1495     rangecoder
1496     rtpdec
1497     rtpenc_chain
1498     sinewin
1499     videodsp
1500     vp3dsp
1501 "
1502
1503 CMDLINE_SELECT="
1504     $ARCH_EXT_LIST
1505     $CONFIG_LIST
1506     $HAVE_LIST_CMDLINE
1507     $THREADS_LIST
1508     asm
1509     coverage
1510     cross_compile
1511     debug
1512     extra_warnings
1513     logging
1514     lto
1515     optimizations
1516     stripping
1517 "
1518
1519 PATHS_LIST='
1520     bindir
1521     datadir
1522     incdir
1523     libdir
1524     mandir
1525     prefix
1526     shlibdir
1527 '
1528
1529 CMDLINE_SET="
1530     $PATHS_LIST
1531     ar
1532     arch
1533     as
1534     assert_level
1535     build_suffix
1536     cc
1537     cpu
1538     cross_prefix
1539     cxx
1540     dep_cc
1541     extra_version
1542     host_cc
1543     host_cflags
1544     host_ld
1545     host_ldflags
1546     host_libs
1547     host_os
1548     install
1549     ld
1550     logfile
1551     malloc_prefix
1552     nm
1553     optflags
1554     pkg_config
1555     progs_suffix
1556     random_seed
1557     samples
1558     strip
1559     sysinclude
1560     sysroot
1561     target_exec
1562     target_os
1563     target_path
1564     toolchain
1565     valgrind
1566     yasmexe
1567 "
1568
1569 CMDLINE_APPEND="
1570     extra_cflags
1571     extra_cxxflags
1572 "
1573
1574 # code dependency declarations
1575
1576 # architecture extensions
1577
1578 armv5te_deps="arm"
1579 armv6_deps="arm"
1580 armv6t2_deps="arm"
1581 neon_deps="arm"
1582 vfp_deps="arm"
1583 vfpv3_deps="vfp"
1584
1585 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1586
1587 mipsfpu_deps="mips"
1588 mips32r2_deps="mips"
1589 mipsdspr1_deps="mips"
1590 mipsdspr2_deps="mips"
1591
1592 altivec_deps="ppc"
1593 ppc4xx_deps="ppc"
1594
1595 vis_deps="sparc"
1596
1597 x86_64_suggest="cmov fast_cmov"
1598
1599 amd3dnow_deps="mmx"
1600 amd3dnowext_deps="amd3dnow"
1601 mmx_deps="x86"
1602 mmxext_deps="mmx"
1603 sse_deps="mmxext"
1604 sse2_deps="sse"
1605 sse3_deps="sse2"
1606 ssse3_deps="sse3"
1607 sse4_deps="ssse3"
1608 sse42_deps="sse4"
1609 avx_deps="sse42"
1610 fma4_deps="avx"
1611
1612 mmx_external_deps="yasm"
1613 mmx_inline_deps="inline_asm"
1614 mmx_suggest="mmx_external mmx_inline"
1615
1616 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1617     eval dep=\$${ext}_deps
1618     eval ${ext}_external_deps='"${dep}_external"'
1619     eval ${ext}_inline_deps='"${dep}_inline"'
1620     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1621 done
1622
1623 aligned_stack_if_any="ppc x86"
1624 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1625 fast_clz_if_any="alpha avr32 mips ppc x86"
1626 fast_unaligned_if_any="ppc x86"
1627
1628 inline_asm_deps="!tms470"
1629 need_memalign="altivec neon sse"
1630
1631 symver_if_any="symver_asm_label symver_gnu_asm"
1632
1633 log2_deps="!msvcrt"
1634
1635 # subsystems
1636 dct_select="rdft"
1637 mdct_select="fft"
1638 rdft_select="fft"
1639 mpegaudio_select="mpegaudiodsp"
1640 mpegaudiodsp_select="dct"
1641 mpegvideo_select="videodsp"
1642 mpegvideoenc_select="mpegvideo"
1643
1644 # decoders / encoders
1645 aac_decoder_select="mdct sinewin"
1646 aac_encoder_select="audio_frame_queue mdct sinewin"
1647 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1648 ac3_decoder_select="mdct ac3dsp ac3_parser"
1649 ac3_encoder_select="mdct ac3dsp"
1650 ac3_fixed_encoder_select="mdct ac3dsp"
1651 alac_encoder_select="lpc"
1652 amrnb_decoder_select="lsp"
1653 amrwb_decoder_select="lsp"
1654 amv_encoder_select="aandcttables"
1655 atrac1_decoder_select="mdct sinewin"
1656 atrac3_decoder_select="mdct"
1657 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1658 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1659 cavs_decoder_select="golomb mpegvideo"
1660 comfortnoise_encoder_select="lpc"
1661 cook_decoder_select="mdct sinewin"
1662 cscd_decoder_select="lzo"
1663 cscd_decoder_suggest="zlib"
1664 dca_decoder_select="mdct"
1665 dirac_decoder_select="dwt golomb videodsp"
1666 dnxhd_encoder_select="aandcttables mpegvideoenc"
1667 dxa_decoder_select="zlib"
1668 eac3_decoder_select="ac3_decoder"
1669 eac3_encoder_select="ac3_encoder"
1670 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1671 eatgq_decoder_select="aandcttables"
1672 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1673 exr_decoder_select="zlib"
1674 ffv1_decoder_select="golomb rangecoder"
1675 ffv1_encoder_select="rangecoder"
1676 ffvhuff_encoder_select="huffman"
1677 flac_decoder_select="golomb"
1678 flac_encoder_select="golomb lpc"
1679 flashsv_decoder_select="zlib"
1680 flashsv_encoder_select="zlib"
1681 flashsv2_encoder_select="zlib"
1682 flashsv2_decoder_select="zlib"
1683 flv_decoder_select="h263_decoder"
1684 flv_encoder_select="h263_encoder"
1685 fraps_decoder_select="huffman"
1686 h261_decoder_select="error_resilience mpegvideo"
1687 h261_encoder_select="aandcttables mpegvideoenc"
1688 h263_decoder_select="error_resilience h263_parser mpegvideo"
1689 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1690 h263i_decoder_select="h263_decoder"
1691 h263p_encoder_select="h263_encoder"
1692 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1693 huffyuv_encoder_select="huffman"
1694 iac_decoder_select="fft mdct sinewin"
1695 imc_decoder_select="fft mdct sinewin"
1696 jpegls_decoder_select="golomb"
1697 jpegls_encoder_select="golomb"
1698 ljpeg_encoder_select="aandcttables mpegvideoenc"
1699 loco_decoder_select="golomb"
1700 mdec_decoder_select="error_resilience mpegvideo"
1701 mjpeg_encoder_select="aandcttables mpegvideoenc"
1702 mlp_decoder_select="mlp_parser"
1703 mp1_decoder_select="mpegaudio"
1704 mp1float_decoder_select="mpegaudio"
1705 mp2_decoder_select="mpegaudio"
1706 mp2float_decoder_select="mpegaudio"
1707 mp3_decoder_select="mpegaudio"
1708 mp3adu_decoder_select="mpegaudio"
1709 mp3adufloat_decoder_select="mpegaudio"
1710 mp3float_decoder_select="mpegaudio"
1711 mp3on4_decoder_select="mpegaudio"
1712 mp3on4float_decoder_select="mpegaudio"
1713 mpc7_decoder_select="mpegaudiodsp"
1714 mpc8_decoder_select="mpegaudiodsp"
1715 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1716 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1717 mpeg1video_decoder_select="error_resilience mpegvideo"
1718 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1719 mpeg2video_decoder_select="error_resilience mpegvideo"
1720 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1721 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1722 mpeg4_encoder_select="h263_encoder"
1723 msmpeg4v1_decoder_select="h263_decoder"
1724 msmpeg4v1_encoder_select="h263_encoder"
1725 msmpeg4v2_decoder_select="h263_decoder"
1726 msmpeg4v2_encoder_select="h263_encoder"
1727 msmpeg4v3_decoder_select="h263_decoder"
1728 msmpeg4v3_encoder_select="h263_encoder"
1729 mss2_decoder_select="vc1_decoder"
1730 nellymoser_decoder_select="mdct sinewin"
1731 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1732 nuv_decoder_select="lzo"
1733 png_decoder_select="zlib"
1734 png_encoder_select="zlib"
1735 qcelp_decoder_select="lsp"
1736 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1737 ra_144_encoder_select="audio_frame_queue lpc"
1738 ralf_decoder_select="golomb"
1739 rv10_decoder_select="h263_decoder"
1740 rv10_encoder_select="h263_encoder"
1741 rv20_decoder_select="h263_decoder"
1742 rv20_encoder_select="h263_encoder"
1743 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1744 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1745 shorten_decoder_select="golomb"
1746 sipr_decoder_select="lsp"
1747 snow_decoder_select="dwt rangecoder"
1748 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1749 sonic_decoder_select="golomb"
1750 sonic_encoder_select="golomb"
1751 sonic_ls_encoder_select="golomb"
1752 svq1_decoder_select="error_resilience mpegvideo"
1753 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1754 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1755 svq3_decoder_suggest="zlib"
1756 theora_decoder_select="vp3_decoder"
1757 tiff_decoder_suggest="zlib"
1758 tiff_encoder_suggest="zlib"
1759 truehd_decoder_select="mlp_parser"
1760 tscc_decoder_select="zlib"
1761 twinvq_decoder_select="mdct lsp sinewin"
1762 utvideo_encoder_select="huffman"
1763 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1764 vc1image_decoder_select="vc1_decoder"
1765 vorbis_decoder_select="mdct"
1766 vorbis_encoder_select="mdct"
1767 vp3_decoder_select="vp3dsp videodsp"
1768 vp5_decoder_select="vp3dsp videodsp"
1769 vp6_decoder_select="huffman vp3dsp videodsp"
1770 vp6a_decoder_select="vp6_decoder"
1771 vp6f_decoder_select="vp6_decoder"
1772 vp8_decoder_select="h264pred videodsp"
1773 wmapro_decoder_select="mdct sinewin"
1774 wmav1_decoder_select="mdct sinewin"
1775 wmav1_encoder_select="mdct sinewin"
1776 wmav2_decoder_select="mdct sinewin"
1777 wmav2_encoder_select="mdct sinewin"
1778 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1779 wmv1_decoder_select="h263_decoder"
1780 wmv1_encoder_select="h263_encoder"
1781 wmv2_decoder_select="h263_decoder"
1782 wmv2_encoder_select="h263_encoder"
1783 wmv3_decoder_select="vc1_decoder"
1784 wmv3image_decoder_select="wmv3_decoder"
1785 zerocodec_decoder_select="zlib"
1786 zlib_decoder_select="zlib"
1787 zlib_encoder_select="zlib"
1788 zmbv_decoder_select="zlib"
1789 zmbv_encoder_select="zlib"
1790
1791 # hardware accelerators
1792 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1793 vaapi_deps="va_va_h"
1794 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1795 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1796
1797 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1798 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1799 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1800 h264_dxva2_hwaccel_deps="dxva2api_h"
1801 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1802 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1803 h264_vda_decoder_select="vda h264_parser h264_decoder"
1804 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1805 h264_vda_hwaccel_select="vda h264_decoder"
1806 h264_vdpau_decoder_select="vdpau h264_decoder"
1807 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1808 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1809 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1810 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1811 mpeg2_crystalhd_decoder_select="crystalhd"
1812 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1813 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1814 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1815 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1816 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1817 mpeg4_crystalhd_decoder_select="crystalhd"
1818 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1819 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1820 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1821 msmpeg4_crystalhd_decoder_select="crystalhd"
1822 vc1_crystalhd_decoder_select="crystalhd"
1823 vc1_dxva2_hwaccel_deps="dxva2api_h"
1824 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1825 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1826 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1827 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1828 wmv3_crystalhd_decoder_select="crystalhd"
1829 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1830 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1831 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1832 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1833
1834 # parsers
1835 h264_parser_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1836 mpeg4video_parser_select="error_resilience mpegvideo"
1837 mpegvideo_parser_select="error_resilience mpegvideo"
1838 vc1_parser_select="error_resilience mpegvideo"
1839
1840 # external libraries
1841 libaacplus_encoder_deps="libaacplus"
1842 libcelt_decoder_deps="libcelt"
1843 libfaac_encoder_deps="libfaac"
1844 libfaac_encoder_select="audio_frame_queue"
1845 libfdk_aac_encoder_deps="libfdk_aac"
1846 libfdk_aac_encoder_select="audio_frame_queue"
1847 libgsm_decoder_deps="libgsm"
1848 libgsm_encoder_deps="libgsm"
1849 libgsm_ms_decoder_deps="libgsm"
1850 libgsm_ms_encoder_deps="libgsm"
1851 libilbc_decoder_deps="libilbc"
1852 libilbc_encoder_deps="libilbc"
1853 libmodplug_demuxer_deps="libmodplug"
1854 libmp3lame_encoder_deps="libmp3lame"
1855 libmp3lame_encoder_select="audio_frame_queue"
1856 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1857 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1858 libopencore_amrnb_encoder_select="audio_frame_queue"
1859 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1860 libopenjpeg_decoder_deps="libopenjpeg"
1861 libopenjpeg_encoder_deps="libopenjpeg"
1862 libopus_decoder_deps="libopus"
1863 libopus_encoder_deps="libopus"
1864 libopus_encoder_select="audio_frame_queue"
1865 libschroedinger_decoder_deps="libschroedinger"
1866 libschroedinger_encoder_deps="libschroedinger"
1867 libspeex_decoder_deps="libspeex"
1868 libspeex_encoder_deps="libspeex"
1869 libspeex_encoder_select="audio_frame_queue"
1870 libstagefright_h264_decoder_deps="libstagefright_h264"
1871 libtheora_encoder_deps="libtheora"
1872 libtwolame_encoder_deps="libtwolame"
1873 libvo_aacenc_encoder_deps="libvo_aacenc"
1874 libvo_aacenc_encoder_select="audio_frame_queue"
1875 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1876 libvorbis_decoder_deps="libvorbis"
1877 libvorbis_encoder_deps="libvorbis"
1878 libvorbis_encoder_select="audio_frame_queue"
1879 libvpx_vp8_decoder_deps="libvpx"
1880 libvpx_vp8_encoder_deps="libvpx"
1881 libvpx_vp9_decoder_deps="libvpx"
1882 libvpx_vp9_encoder_deps="libvpx"
1883 libx264_encoder_deps="libx264"
1884 libx264rgb_encoder_deps="libx264"
1885 libxavs_encoder_deps="libxavs"
1886 libxvid_encoder_deps="libxvid"
1887 libutvideo_decoder_deps="libutvideo"
1888 libutvideo_encoder_deps="libutvideo"
1889
1890 # demuxers / muxers
1891 ac3_demuxer_select="ac3_parser"
1892 asf_stream_muxer_select="asf_muxer"
1893 avisynth_demuxer_deps="avisynth"
1894 dirac_demuxer_select="dirac_parser"
1895 dts_demuxer_select="dca_parser"
1896 dtshd_demuxer_select="dca_parser"
1897 eac3_demuxer_select="ac3_parser"
1898 f4v_muxer_select="mov_muxer"
1899 flac_demuxer_select="flac_parser"
1900 ipod_muxer_select="mov_muxer"
1901 ismv_muxer_select="mov_muxer"
1902 libnut_demuxer_deps="libnut"
1903 libnut_muxer_deps="libnut"
1904 matroska_audio_muxer_select="matroska_muxer"
1905 matroska_demuxer_suggest="bzlib lzo zlib"
1906 mov_demuxer_suggest="zlib"
1907 mov_muxer_select="rtpenc_chain"
1908 mp3_demuxer_select="mpegaudio_parser"
1909 mp4_muxer_select="mov_muxer"
1910 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1911 mpegtsraw_demuxer_select="mpegts_demuxer"
1912 mxf_d10_muxer_select="mxf_muxer"
1913 ogg_demuxer_select="golomb"
1914 psp_muxer_select="mov_muxer"
1915 rtp_demuxer_select="sdp_demuxer"
1916 rtp_muxer_select="mpegvideo"
1917 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1918 rtsp_demuxer_select="http_protocol rtpdec"
1919 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1920 sap_demuxer_select="sdp_demuxer"
1921 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1922 sdp_demuxer_select="rtpdec"
1923 smoothstreaming_muxer_select="ismv_muxer"
1924 spdif_muxer_select="aac_parser"
1925 tak_demuxer_select="tak_parser"
1926 tg2_muxer_select="mov_muxer"
1927 tgp_muxer_select="mov_muxer"
1928 vobsub_demuxer_select="mpegps_demuxer"
1929 w64_demuxer_deps="wav_demuxer"
1930 w64_muxer_deps="wav_muxer"
1931
1932 # indevs / outdevs
1933 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1934 alsa_outdev_deps="alsa_asoundlib_h"
1935 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1936 caca_outdev_deps="libcaca"
1937 dshow_indev_deps="IBaseFilter"
1938 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1939 dv1394_indev_deps="dv1394 dv_demuxer"
1940 fbdev_indev_deps="linux_fb_h"
1941 iec61883_indev_deps="libiec61883"
1942 jack_indev_deps="jack_jack_h sem_timedwait"
1943 lavfi_indev_deps="avfilter"
1944 libcdio_indev_deps="libcdio"
1945 libdc1394_indev_deps="libdc1394"
1946 libv4l2_indev_deps="libv4l2"
1947 openal_indev_deps="openal"
1948 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1949 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1950 pulse_indev_deps="libpulse"
1951 sdl_outdev_deps="sdl"
1952 sndio_indev_deps="sndio_h"
1953 sndio_outdev_deps="sndio_h"
1954 v4l_indev_deps="linux_videodev_h"
1955 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1956 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1957 vfwcap_indev_extralibs="-lavicap32"
1958 x11grab_indev_deps="x11grab"
1959
1960 # protocols
1961 bluray_protocol_deps="libbluray"
1962 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1963 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1964 ffrtmpcrypt_protocol_select="tcp_protocol"
1965 ffrtmphttp_protocol_deps="!librtmp_protocol"
1966 ffrtmphttp_protocol_select="http_protocol"
1967 gopher_protocol_select="network"
1968 httpproxy_protocol_select="tcp_protocol"
1969 http_protocol_select="tcp_protocol"
1970 https_protocol_select="tls_protocol"
1971 librtmp_protocol_deps="librtmp"
1972 librtmpe_protocol_deps="librtmp"
1973 librtmps_protocol_deps="librtmp"
1974 librtmpt_protocol_deps="librtmp"
1975 librtmpte_protocol_deps="librtmp"
1976 mmsh_protocol_select="http_protocol"
1977 mmst_protocol_select="network"
1978 rtmp_protocol_deps="!librtmp_protocol"
1979 rtmp_protocol_select="tcp_protocol"
1980 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1981 rtmps_protocol_deps="!librtmp_protocol"
1982 rtmps_protocol_select="tls_protocol"
1983 rtmpt_protocol_select="ffrtmphttp_protocol"
1984 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1985 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1986 rtp_protocol_select="udp_protocol"
1987 sctp_protocol_deps="struct_sctp_event_subscribe"
1988 sctp_protocol_select="network"
1989 srtp_protocol_select="rtp_protocol"
1990 tcp_protocol_select="network"
1991 tls_protocol_deps_any="openssl gnutls"
1992 tls_protocol_select="tcp_protocol"
1993 udp_protocol_select="network"
1994
1995 # filters
1996 aconvert_filter_deps="swresample"
1997 amovie_filter_deps="avcodec avformat"
1998 aresample_filter_deps="swresample"
1999 ass_filter_deps="libass"
2000 asyncts_filter_deps="avresample"
2001 atempo_filter_deps="avcodec rdft"
2002 blackframe_filter_deps="gpl"
2003 boxblur_filter_deps="gpl"
2004 colormatrix_filter_deps="gpl"
2005 cropdetect_filter_deps="gpl"
2006 decimate_filter_deps="gpl avcodec"
2007 delogo_filter_deps="gpl"
2008 deshake_filter_deps="avcodec"
2009 drawtext_filter_deps="libfreetype"
2010 ebur128_filter_deps="gpl"
2011 flite_filter_deps="libflite"
2012 frei0r_filter_deps="frei0r dlopen"
2013 frei0r_filter_extralibs='$ldl'
2014 frei0r_src_filter_deps="frei0r dlopen"
2015 frei0r_src_filter_extralibs='$ldl'
2016 geq_filter_deps="gpl"
2017 histeq_filter_deps="gpl"
2018 hqdn3d_filter_deps="gpl"
2019 hue_filter_deps="gpl"
2020 kerndeint_filter_deps="gpl"
2021 movie_filter_deps="avcodec avformat"
2022 mp_filter_deps="gpl avcodec swscale inline_asm"
2023 mptestsrc_filter_deps="gpl"
2024 negate_filter_deps="lut_filter"
2025 noise_filter_deps="gpl"
2026 resample_filter_deps="avresample"
2027 ocv_filter_deps="libopencv"
2028 pan_filter_deps="swresample"
2029 pp_filter_deps="gpl postproc"
2030 removelogo_filter_deps="avcodec avformat swscale"
2031 scale_filter_deps="swscale"
2032 smartblur_filter_deps="gpl swscale"
2033 showspectrum_filter_deps="avcodec rdft"
2034 subtitles_filter_deps="avformat avcodec libass"
2035 super2xsai_filter_deps="gpl"
2036 tinterlace_filter_deps="gpl"
2037 yadif_filter_deps="gpl"
2038 pixfmts_super2xsai_test_deps="super2xsai_filter"
2039 tinterlace_merge_test_deps="tinterlace_filter"
2040 tinterlace_pad_test_deps="tinterlace_filter"
2041
2042 # libraries
2043 avcodec_deps="avutil"
2044 avdevice_deps="avutil avcodec avformat"
2045 avfilter_deps="avutil"
2046 avformat_deps="avutil avcodec"
2047 avresample_deps="avutil"
2048 postproc_deps="avutil gpl"
2049 swscale_deps="avutil"
2050
2051 # programs
2052 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2053 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2054                setpts_filter null_filter anull_filter ffabuffersink_filter"
2055 ffplay_deps="avcodec avformat swscale swresample sdl"
2056 ffplay_select="ffbuffersink_filter rdft crop_filter"
2057 ffprobe_deps="avcodec avformat"
2058 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2059 ffserver_extralibs='$ldl'
2060
2061 # documentation
2062 podpages_deps="perl"
2063 manpages_deps="perl pod2man"
2064 htmlpages_deps="texi2html"
2065 txtpages_deps="makeinfo"
2066 doc_deps_any="manpages htmlpages podpages txtpages"
2067
2068 # default parameters
2069
2070 logfile="config.log"
2071
2072 # installation paths
2073 prefix_default="/usr/local"
2074 bindir_default='${prefix}/bin'
2075 datadir_default='${prefix}/share/ffmpeg'
2076 incdir_default='${prefix}/include'
2077 libdir_default='${prefix}/lib'
2078 mandir_default='${prefix}/share/man'
2079 shlibdir_default="$libdir_default"
2080
2081 # toolchain
2082 ar_default="ar"
2083 cc_default="gcc"
2084 cxx_default="g++"
2085 host_cc_default="gcc"
2086 cp_f="cp -f"
2087 install="install"
2088 ln_s="ln -sf"
2089 nm_default="nm -g"
2090 objformat="elf"
2091 pkg_config_default=pkg-config
2092 ranlib="ranlib"
2093 strip_default="strip"
2094 yasmexe_default="yasm"
2095
2096 nogas=":"
2097
2098 # machine
2099 arch_default=$(uname -m)
2100 cpu="generic"
2101
2102 # OS
2103 target_os_default=$(tolower $(uname -s))
2104 host_os=$target_os_default
2105
2106 # configurable options
2107 enable $PROGRAM_LIST
2108 enable $DOCUMENT_LIST
2109 enable $(filter_out avresample $LIBRARY_LIST)
2110 enable stripping
2111
2112 enable asm
2113 enable debug
2114 enable doc
2115 enable optimizations
2116 enable runtime_cpudetect
2117 enable safe_bitstream_reader
2118 enable static
2119 enable swscale_alpha
2120
2121 # build settings
2122 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2123 FFSERVERLDFLAGS=-Wl,-E
2124 LIBPREF="lib"
2125 LIBSUF=".a"
2126 FULLNAME='$(NAME)$(BUILDSUF)'
2127 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2128 SLIBPREF="lib"
2129 SLIBSUF=".so"
2130 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2131 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2132 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2133 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2134 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2135 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2136
2137 asflags_filter=echo
2138 cflags_filter=echo
2139 ldflags_filter=echo
2140
2141 AS_C='-c'
2142 AS_O='-o $@'
2143 CC_C='-c'
2144 CC_E='-E -o $@'
2145 CC_O='-o $@'
2146 CXX_C='-c'
2147 CXX_O='-o $@'
2148 LD_O='-o $@'
2149 LD_LIB='-l%'
2150 LD_PATH='-L'
2151 HOSTCC_C='-c'
2152 HOSTCC_O='-o $@'
2153 HOSTLD_O='-o $@'
2154
2155 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2156 host_libs='-lm'
2157 host_cflags_filter=echo
2158 host_ldflags_filter=echo
2159
2160 target_path='$(CURDIR)'
2161
2162 # since the object filename is not given with the -MM flag, the compiler
2163 # is only able to print the basename, and we must add the path ourselves
2164 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2165 DEPFLAGS='-MM'
2166
2167 # find source path
2168 if test -f configure; then
2169     source_path=.
2170 else
2171     source_path=$(cd $(dirname "$0"); pwd)
2172     echo "$source_path" | grep -q '[[:blank:]]' &&
2173         die "Out of tree builds are impossible with whitespace in source path."
2174     test -e "$source_path/config.h" &&
2175         die "Out of tree builds are impossible with config.h in source dir."
2176 fi
2177
2178 for v in "$@"; do
2179     r=${v#*=}
2180     l=${v%"$r"}
2181     r=$(sh_quote "$r")
2182     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2183 done
2184
2185 find_things(){
2186     thing=$1
2187     pattern=$2
2188     file=$source_path/$3
2189     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2190 }
2191
2192 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2193 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2194 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2195 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2196 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2197 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2198 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2199 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2200 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2201 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2202 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2203
2204 ALL_COMPONENTS="
2205     $BSF_LIST
2206     $DECODER_LIST
2207     $DEMUXER_LIST
2208     $ENCODER_LIST
2209     $FILTER_LIST
2210     $HWACCEL_LIST
2211     $INDEV_LIST
2212     $MUXER_LIST
2213     $OUTDEV_LIST
2214     $PARSER_LIST
2215     $PROTOCOL_LIST
2216 "
2217
2218 for n in $COMPONENT_LIST; do
2219     v=$(toupper ${n%s})_LIST
2220     eval enable \$$v
2221     eval ${n}_if_any="\$$v"
2222 done
2223
2224 enable $ARCH_EXT_LIST
2225
2226 die_unknown(){
2227     echo "Unknown option \"$1\"."
2228     echo "See $0 --help for available options."
2229     exit 1
2230 }
2231
2232 show_list() {
2233     suffix=_$1
2234     shift
2235     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2236     exit 0
2237 }
2238
2239 rand_list(){
2240     IFS=', '
2241     set -- $*
2242     unset IFS
2243     for thing; do
2244         comp=${thing%:*}
2245         prob=${thing#$comp}
2246         prob=${prob#:}
2247         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2248         echo "prob ${prob:-0.5}"
2249         printf '%s\n' $comp
2250     done
2251 }
2252
2253 do_random(){
2254     action=$1
2255     shift
2256     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2257     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2258 }
2259
2260 for opt do
2261     optval="${opt#*=}"
2262     case "$opt" in
2263         --extra-ldflags=*)
2264             add_ldflags $optval
2265         ;;
2266         --extra-libs=*)
2267             add_extralibs $optval
2268         ;;
2269         --disable-devices)
2270             disable $INDEV_LIST $OUTDEV_LIST
2271         ;;
2272         --enable-debug=*)
2273             debuglevel="$optval"
2274         ;;
2275         --disable-programs)
2276             disable $PROGRAM_LIST
2277         ;;
2278         --disable-everything)
2279             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2280         ;;
2281         --disable-all)
2282             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2283             disable $LIBRARY_LIST $PROGRAM_LIST doc
2284         ;;
2285         --enable-random|--disable-random)
2286             action=${opt%%-random}
2287             do_random ${action#--} $COMPONENT_LIST
2288         ;;
2289         --enable-random=*|--disable-random=*)
2290             action=${opt%%-random=*}
2291             do_random ${action#--} $optval
2292         ;;
2293         --enable-*=*|--disable-*=*)
2294             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2295             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2296             eval list=\$$(toupper $thing)_LIST
2297             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2298             list=$(filter "$name" $list)
2299             [ "$list" = "" ] && warn "Option $opt did not match anything"
2300             $action $list
2301         ;;
2302         --enable-?*|--disable-?*)
2303             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2304             if is_in $option $COMPONENT_LIST; then
2305                 test $action = disable && action=unset
2306                 eval $action \$$(toupper ${option%s})_LIST
2307             elif is_in $option $CMDLINE_SELECT; then
2308                 $action $option
2309             else
2310                 die_unknown $opt
2311             fi
2312         ;;
2313         --list-*)
2314             NAME="${opt#--list-}"
2315             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2316             NAME=${NAME%s}
2317             eval show_list $NAME \$$(toupper $NAME)_LIST
2318         ;;
2319         --help|-h) show_help
2320         ;;
2321         --fatal-warnings) enable fatal_warnings
2322         ;;
2323         *)
2324             optname="${opt%%=*}"
2325             optname="${optname#--}"
2326             optname=$(echo "$optname" | sed 's/-/_/g')
2327             if is_in $optname $CMDLINE_SET; then
2328                 eval $optname='$optval'
2329             elif is_in $optname $CMDLINE_APPEND; then
2330                 append $optname "$optval"
2331             else
2332                 die_unknown $opt
2333             fi
2334         ;;
2335     esac
2336 done
2337
2338 disabled logging && logfile=/dev/null
2339
2340 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2341 set >> $logfile
2342
2343 test -n "$cross_prefix" && enable cross_compile
2344
2345 if enabled cross_compile; then
2346     test -n "$arch" && test -n "$target_os" ||
2347         die "Must specify target arch and OS when cross-compiling"
2348 fi
2349
2350 ar_default="${cross_prefix}${ar_default}"
2351 cc_default="${cross_prefix}${cc_default}"
2352 cxx_default="${cross_prefix}${cxx_default}"
2353 nm_default="${cross_prefix}${nm_default}"
2354 pkg_config_default="${cross_prefix}${pkg_config_default}"
2355 ranlib="${cross_prefix}${ranlib}"
2356 strip_default="${cross_prefix}${strip_default}"
2357
2358 sysinclude_default="${sysroot}/usr/include"
2359
2360 case "$toolchain" in
2361     clang-asan)
2362         cc_default="clang"
2363         add_cflags  -faddress-sanitizer
2364         add_ldflags -faddress-sanitizer
2365     ;;
2366     clang-tsan)
2367         cc_default="clang"
2368         add_cflags  -fthread-sanitizer
2369         add_ldflags -fthread-sanitizer
2370     ;;
2371     msvc)
2372         cc_default="c99wrap cl"
2373         ld_default="c99wrap link"
2374         nm_default="dumpbin -symbols"
2375         ar_default="lib"
2376         target_os_default="win32"
2377     ;;
2378     ?*)
2379         die "Unknown toolchain $toolchain"
2380     ;;
2381 esac
2382
2383 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2384 enabled cross_compile || host_cc_default=$cc
2385 set_default host_cc
2386
2387 if ! $pkg_config --version >/dev/null 2>&1; then
2388     warn "$pkg_config not found, library detection may fail."
2389     pkg_config=false
2390 fi
2391
2392 exesuf() {
2393     case $1 in
2394         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2395     esac
2396 }
2397
2398 EXESUF=$(exesuf $target_os)
2399 HOSTEXESUF=$(exesuf $host_os)
2400
2401 # set temporary file name
2402 : ${TMPDIR:=$TEMPDIR}
2403 : ${TMPDIR:=$TMP}
2404 : ${TMPDIR:=/tmp}
2405
2406 if ! check_cmd mktemp -u XXXXXX; then
2407     # simple replacement for missing mktemp
2408     # NOT SAFE FOR GENERAL USE
2409     mktemp(){
2410         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2411     }
2412 fi
2413
2414 tmpfile(){
2415     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2416         (set -C; exec > $tmp) 2>/dev/null ||
2417         die "Unable to create temporary file in $TMPDIR."
2418     append TMPFILES $tmp
2419     eval $1=$tmp
2420 }
2421
2422 trap 'rm -f -- $TMPFILES' EXIT
2423
2424 tmpfile TMPASM .asm
2425 tmpfile TMPC   .c
2426 tmpfile TMPCPP .cpp
2427 tmpfile TMPE   $EXESUF
2428 tmpfile TMPH   .h
2429 tmpfile TMPO   .o
2430 tmpfile TMPS   .S
2431 tmpfile TMPSH  .sh
2432 tmpfile TMPV   .ver
2433
2434 unset -f mktemp
2435
2436 chmod +x $TMPE
2437
2438 # make sure we can execute files in $TMPDIR
2439 cat > $TMPSH 2>> $logfile <<EOF
2440 #! /bin/sh
2441 EOF
2442 chmod +x $TMPSH >> $logfile 2>&1
2443 if ! $TMPSH >> $logfile 2>&1; then
2444     cat <<EOF
2445 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2446 variable to another directory and make sure that it is not mounted noexec.
2447 EOF
2448     die "Sanity test failed."
2449 fi
2450
2451 ccc_flags(){
2452     for flag; do
2453         case $flag in
2454             -std=c99)           echo -c99                       ;;
2455             -mcpu=*)            echo -arch ${flag#*=}           ;;
2456             -mieee)             echo -ieee                      ;;
2457             -O*|-fast)          echo $flag                      ;;
2458             -fno-math-errno)    echo -assume nomath_errno       ;;
2459             -g)                 echo -g3                        ;;
2460             -Wall)              echo -msg_enable level2         ;;
2461             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2462             -Wl,*)              echo $flag                      ;;
2463             -f*|-W*)                                            ;;
2464             *)                  echo $flag                      ;;
2465         esac
2466    done
2467 }
2468
2469 msvc_flags(){
2470     for flag; do
2471         case $flag in
2472             -fomit-frame-pointer) echo -Oy ;;
2473             -g)                   echo -Z7 ;;
2474             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2475                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2476                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2477                                        -wd4554 \
2478                                        -wd4996 -wd4273 ;;
2479             -std=c99)             ;;
2480             -fno-math-errno)      ;;
2481             -fno-common)          ;;
2482             -fno-signed-zeros)    ;;
2483             -fPIC)                ;;
2484             -lz)                  echo zlib.lib ;;
2485             -lavifil32)           echo vfw32.lib ;;
2486             -lavicap32)           echo vfw32.lib user32.lib ;;
2487             -l*)                  echo ${flag#-l}.lib ;;
2488             *)                    echo $flag ;;
2489         esac
2490     done
2491 }
2492
2493 pgi_flags(){
2494     for flag; do
2495         case $flag in
2496             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2497             -fomit-frame-pointer) echo -Mnoframe ;;
2498             -g)                   echo -gopt ;;
2499             *)                    echo $flag ;;
2500         esac
2501     done
2502 }
2503
2504 suncc_flags(){
2505     for flag; do
2506         case $flag in
2507             -march=*|-mcpu=*)
2508                 case "${flag#*=}" in
2509                     native)                   echo -xtarget=native       ;;
2510                     v9|niagara)               echo -xarch=sparc          ;;
2511                     ultrasparc)               echo -xarch=sparcvis       ;;
2512                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2513                     i586|pentium)             echo -xchip=pentium        ;;
2514                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2515                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2516                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2517                     pentium4*)          echo -xtarget=pentium4           ;;
2518                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2519                     *-sse3)             echo -xarch=sse3                 ;;
2520                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2521                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2522                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2523                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2524                     bdver*)                   echo -xarch=avx            ;;
2525                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2526                     k8|opteron|athlon64|athlon-fx)
2527                                               echo -xarch=sse2a          ;;
2528                     athlon*)                  echo -xarch=pentium_proa   ;;
2529                 esac
2530                 ;;
2531             -std=c99)             echo -xc99              ;;
2532             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2533             -fPIC)                echo -KPIC -xcode=pic32 ;;
2534             -W*,*)                echo $flag              ;;
2535             -f*-*|-W*|-mimpure-text)                      ;;
2536             -shared)              echo -G                 ;;
2537             *)                    echo $flag              ;;
2538         esac
2539     done
2540 }
2541
2542 tms470_flags(){
2543     for flag; do
2544         case $flag in
2545             -march=*|-mcpu=*)
2546                 case "${flag#*=}" in
2547                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2548                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2549                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2550                     armv6*|arm11*)          echo -mv=6   ;;
2551                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2552                                             echo -mv=5e  ;;
2553                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2554                 esac
2555                 ;;
2556             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2557             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2558             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2559             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2560             -msoft-float)   echo --float_support=vfplib       ;;
2561             -O[0-3]|-mf=*)  echo $flag                        ;;
2562             -g)             echo -g -mn                       ;;
2563             -pds=*)         echo $flag                        ;;
2564             -D*|-I*)        echo $flag                        ;;
2565             --gcc|--abi=*)  echo $flag                        ;;
2566             -me)            echo $flag                        ;;
2567         esac
2568     done
2569 }
2570
2571 probe_cc(){
2572     pfx=$1
2573     _cc=$2
2574
2575     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2576     unset _ld_o _ldflags _ld_lib _ld_path
2577     unset _depflags _DEPCMD _DEPFLAGS
2578     _flags_filter=echo
2579
2580     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2581         _type=llvm_gcc
2582         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2583         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2584         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2585         _cflags_speed='-O3'
2586         _cflags_size='-Os'
2587     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2588         _type=gcc
2589         gcc_version=$($_cc --version | head -n1)
2590         gcc_basever=$($_cc -dumpversion)
2591         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2592         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2593         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2594         if ! $_cc -dumpversion | grep -q '^2\.'; then
2595             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2596         fi
2597         _cflags_speed='-O3'
2598         _cflags_size='-Os'
2599     elif $_cc --version 2>/dev/null | grep -q Intel; then
2600         _type=icc
2601         _ident=$($_cc --version | head -n1)
2602         _depflags='-MMD'
2603         _cflags_speed='-O3'
2604         _cflags_size='-Os'
2605         _cflags_noopt='-O1'
2606     elif $_cc -v 2>&1 | grep -q xlc; then
2607         _type=xlc
2608         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2609         _cflags_speed='-O5'
2610         _cflags_size='-O5 -qcompact'
2611     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2612         _type=ccc
2613         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2614         _DEPFLAGS='-M'
2615         _cflags_speed='-fast'
2616         _cflags_size='-O1'
2617         _flags_filter=ccc_flags
2618     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2619         test -d "$sysroot" || die "No valid sysroot specified."
2620         _type=armcc
2621         _ident=$($_cc --vsn | head -n1)
2622         armcc_conf="$PWD/armcc.conf"
2623         $_cc --arm_linux_configure                 \
2624              --arm_linux_config_file="$armcc_conf" \
2625              --configure_sysroot="$sysroot"        \
2626              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2627              die "Error creating armcc configuration file."
2628         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2629         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2630         as_default="${cross_prefix}gcc"
2631         _depflags='-MMD'
2632         _cflags_speed='-O3'
2633         _cflags_size='-Os'
2634     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2635         _type=tms470
2636         _ident=$($_cc -version | head -n1 | tr -s ' ')
2637         _flags='--gcc --abi=eabi -me'
2638         _cc_e='-ppl -fe=$@'
2639         _cc_o='-fe=$@'
2640         _depflags='-ppa -ppd=$(@:.o=.d)'
2641         _cflags_speed='-O3 -mf=5'
2642         _cflags_size='-O3 -mf=2'
2643         _flags_filter=tms470_flags
2644     elif $_cc -v 2>&1 | grep -q clang; then
2645         _type=clang
2646         _ident=$($_cc --version | head -n1)
2647         _depflags='-MMD'
2648         _cflags_speed='-O3'
2649         _cflags_size='-Os'
2650     elif $_cc -V 2>&1 | grep -q Sun; then
2651         _type=suncc
2652         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2653         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2654         _DEPFLAGS='-xM1 -xc99'
2655         _ldflags='-std=c99'
2656         _cflags_speed='-O5'
2657         _cflags_size='-O5 -xspace'
2658         _flags_filter=suncc_flags
2659     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2660         _type=pathscale
2661         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2662         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2663         _cflags_speed='-O2'
2664         _cflags_size='-Os'
2665         _flags_filter='filter_out -Wdisabled-optimization'
2666     elif $_cc -v 2>&1 | grep -q Open64; then
2667         _type=open64
2668         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2669         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2670         _cflags_speed='-O2'
2671         _cflags_size='-Os'
2672         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2673     elif $_cc -V 2>&1 | grep -q Portland; then
2674         _type=pgi
2675         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2676         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2677         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2678         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2679         _cflags_noopt="-O1"
2680         _flags_filter=pgi_flags
2681     elif $_cc 2>&1 | grep -q Microsoft; then
2682         _type=msvc
2683         _ident=$($cc 2>&1 | head -n1)
2684         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2685         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2686         _cflags_speed="-O2"
2687         _cflags_size="-O1"
2688         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2689         if $_cc 2>&1 | grep -q Linker; then
2690             _ld_o='-out $@'
2691         else
2692             _ld_o='-Fe$@'
2693         fi
2694         _cc_o='-Fo $@'
2695         _cc_e='-P -Fi $@'
2696         _flags_filter=msvc_flags
2697         _ld_lib='lib%.a'
2698         _ld_path='-libpath:'
2699         _flags='-nologo'
2700         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2701         if [ $pfx = hostcc ]; then
2702             append _cflags -Dsnprintf=_snprintf
2703         fi
2704         disable stripping
2705     fi
2706
2707     eval ${pfx}_type=\$_type
2708     eval ${pfx}_ident=\$_ident
2709 }
2710
2711 set_ccvars(){
2712     eval ${1}_C=\${_cc_c-\${${1}_C}}
2713     eval ${1}_E=\${_cc_e-\${${1}_E}}
2714     eval ${1}_O=\${_cc_o-\${${1}_O}}
2715
2716     if [ -n "$_depflags" ]; then
2717         eval ${1}_DEPFLAGS=\$_depflags
2718     else
2719         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2720         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2721         eval DEP${1}FLAGS=\$_flags
2722     fi
2723 }
2724
2725 probe_cc cc "$cc"
2726 cflags_filter=$_flags_filter
2727 cflags_speed=$_cflags_speed
2728 cflags_size=$_cflags_size
2729 cflags_noopt=$_cflags_noopt
2730 add_cflags $_flags $_cflags
2731 cc_ldflags=$_ldflags
2732 set_ccvars CC
2733
2734 probe_cc hostcc "$host_cc"
2735 host_cflags_filter=$_flags_filter
2736 add_host_cflags  $_flags $_cflags
2737 set_ccvars HOSTCC
2738
2739 test -n "$cc_type" && enable $cc_type ||
2740     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2741
2742 : ${as_default:=$cc}
2743 : ${dep_cc_default:=$cc}
2744 : ${ld_default:=$cc}
2745 : ${host_ld_default:=$host_cc}
2746 set_default ar as dep_cc ld host_ld
2747
2748 probe_cc as "$as"
2749 asflags_filter=$_flags_filter
2750 add_asflags $_flags $_cflags
2751 set_ccvars AS
2752
2753 probe_cc ld "$ld"
2754 ldflags_filter=$_flags_filter
2755 add_ldflags $_flags $_ldflags
2756 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2757 LD_O=${_ld_o-$LD_O}
2758 LD_LIB=${_ld_lib-$LD_LIB}
2759 LD_PATH=${_ld_path-$LD_PATH}
2760
2761 probe_cc hostld "$host_ld"
2762 host_ldflags_filter=$_flags_filter
2763 add_host_ldflags $_flags $_ldflags
2764 HOSTLD_O=${_ld_o-$HOSTLD_O}
2765
2766 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2767     probe_cc depcc "$dep_cc"
2768     CCDEP=${_DEPCMD:-$DEPCMD}
2769     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2770     DEPCCFLAGS=$_flags
2771 fi
2772
2773 if $ar 2>&1 | grep -q Microsoft; then
2774     arflags="-nologo"
2775     ar_o='-out:$@'
2776 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2777     arflags="rq"
2778     ar_o='$@'
2779 else
2780     arflags="rc"
2781     ar_o='$@'
2782 fi
2783
2784 add_cflags $extra_cflags
2785 add_cxxflags $extra_cxxflags
2786 add_asflags $extra_cflags
2787
2788 if test -n "$sysroot"; then
2789     case "$cc_type" in
2790         gcc|llvm_gcc|clang)
2791             add_cppflags --sysroot="$sysroot"
2792             add_ldflags --sysroot="$sysroot"
2793         ;;
2794         tms470)
2795             add_cppflags -I"$sysinclude"
2796             add_ldflags  --sysroot="$sysroot"
2797         ;;
2798     esac
2799 fi
2800
2801 if test "$cpu" = host; then
2802     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2803
2804     case "$cc_type" in
2805         gcc|llvm_gcc)
2806             check_native(){
2807                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2808                 sed -n "/cc1.*$1=/{
2809                             s/.*$1=\\([^ ]*\\).*/\\1/
2810                             p
2811                             q
2812                         }" $TMPE
2813             }
2814             cpu=$(check_native -march || check_native -mcpu)
2815         ;;
2816     esac
2817
2818     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2819 fi
2820
2821 # Deal with common $arch aliases
2822 case "$arch" in
2823     aarch64|arm64)
2824         arch="aarch64"
2825     ;;
2826     arm*|iPad*)
2827         arch="arm"
2828     ;;
2829     mips*|IP*)
2830         arch="mips"
2831     ;;
2832     parisc*|hppa*)
2833         arch="parisc"
2834     ;;
2835     "Power Macintosh"|ppc*|powerpc*)
2836         arch="ppc"
2837     ;;
2838     s390|s390x)
2839         arch="s390"
2840     ;;
2841     sh4|sh)
2842         arch="sh4"
2843     ;;
2844     sun4u|sparc*)
2845         arch="sparc"
2846     ;;
2847     tilegx|tile-gx)
2848         arch="tilegx"
2849     ;;
2850     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2851         arch="x86"
2852     ;;
2853 esac
2854
2855 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2856 enable $arch
2857
2858 # Add processor-specific flags
2859 if enabled aarch64; then
2860
2861     case $cpu in
2862         armv*)
2863             cpuflags="-march=$cpu"
2864         ;;
2865         *)
2866             cpuflags="-mcpu=$cpu"
2867         ;;
2868     esac
2869
2870 elif enabled alpha; then
2871
2872     cpuflags="-mcpu=$cpu"
2873
2874 elif enabled arm; then
2875
2876     check_arm_arch() {
2877         check_cpp_condition stddef.h \
2878             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2879             $cpuflags
2880     }
2881
2882     probe_arm_arch() {
2883         if   check_arm_arch 4;        then echo armv4;
2884         elif check_arm_arch 4T;       then echo armv4t;
2885         elif check_arm_arch 5;        then echo armv5;
2886         elif check_arm_arch 5E;       then echo armv5e;
2887         elif check_arm_arch 5T;       then echo armv5t;
2888         elif check_arm_arch 5TE;      then echo armv5te;
2889         elif check_arm_arch 5TEJ;     then echo armv5te;
2890         elif check_arm_arch 6;        then echo armv6;
2891         elif check_arm_arch 6J;       then echo armv6j;
2892         elif check_arm_arch 6K;       then echo armv6k;
2893         elif check_arm_arch 6Z;       then echo armv6z;
2894         elif check_arm_arch 6ZK;      then echo armv6zk;
2895         elif check_arm_arch 6T2;      then echo armv6t2;
2896         elif check_arm_arch 7;        then echo armv7;
2897         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2898         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2899         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2900         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2901         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2902         fi
2903     }
2904
2905     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2906
2907     case $cpu in
2908         armv*)
2909             cpuflags="-march=$cpu"
2910             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2911         ;;
2912         *)
2913             cpuflags="-mcpu=$cpu"
2914             case $cpu in
2915                 cortex-a*)                               subarch=armv7a  ;;
2916                 cortex-r*)                               subarch=armv7r  ;;
2917                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2918                 arm11*)                                  subarch=armv6   ;;
2919                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2920                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2921                 *)                             subarch=$(probe_arm_arch) ;;
2922             esac
2923         ;;
2924     esac
2925
2926     case "$subarch" in
2927         armv5t*)    enable fast_clz                ;;
2928         armv[6-8]*) enable fast_clz fast_unaligned ;;
2929     esac
2930
2931 elif enabled avr32; then
2932
2933     case $cpu in
2934         ap7[02]0[0-2])
2935             subarch="avr32_ap"
2936             cpuflags="-mpart=$cpu"
2937         ;;
2938         ap)
2939             subarch="avr32_ap"
2940             cpuflags="-march=$cpu"
2941         ;;
2942         uc3[ab]*)
2943             subarch="avr32_uc"
2944             cpuflags="-mcpu=$cpu"
2945         ;;
2946         uc)
2947             subarch="avr32_uc"
2948             cpuflags="-march=$cpu"
2949         ;;
2950     esac
2951
2952 elif enabled bfin; then
2953
2954     cpuflags="-mcpu=$cpu"
2955
2956 elif enabled mips; then
2957
2958     cpuflags="-march=$cpu"
2959
2960     case $cpu in
2961         24kc)
2962             disable mipsfpu
2963             disable mipsdspr1
2964             disable mipsdspr2
2965         ;;
2966         24kf*)
2967             disable mipsdspr1
2968             disable mipsdspr2
2969         ;;
2970         24kec|34kc|1004kc)
2971             disable mipsfpu
2972             disable mipsdspr2
2973         ;;
2974         24kef*|34kf*|1004kf*)
2975             disable mipsdspr2
2976         ;;
2977         74kc)
2978             disable mipsfpu
2979         ;;
2980     esac
2981
2982 elif enabled ppc; then
2983
2984     case $(tolower $cpu) in
2985         601|ppc601|powerpc601)
2986             cpuflags="-mcpu=601"
2987             disable altivec
2988         ;;
2989         603*|ppc603*|powerpc603*)
2990             cpuflags="-mcpu=603"
2991             disable altivec
2992         ;;
2993         604*|ppc604*|powerpc604*)
2994             cpuflags="-mcpu=604"
2995             disable altivec
2996         ;;
2997         g3|75*|ppc75*|powerpc75*)
2998             cpuflags="-mcpu=750"
2999             disable altivec
3000         ;;
3001         g4|745*|ppc745*|powerpc745*)
3002             cpuflags="-mcpu=7450"
3003         ;;
3004         74*|ppc74*|powerpc74*)
3005             cpuflags="-mcpu=7400"
3006         ;;
3007         g5|970|ppc970|powerpc970)
3008             cpuflags="-mcpu=970"
3009         ;;
3010         power[3-7]*)
3011             cpuflags="-mcpu=$cpu"
3012         ;;
3013         cell)
3014             cpuflags="-mcpu=cell"
3015             enable ldbrx
3016         ;;
3017         e500mc)
3018             cpuflags="-mcpu=e500mc"
3019             disable altivec
3020         ;;
3021         e500v2)
3022             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3023             disable altivec
3024         ;;
3025         e500)
3026             cpuflags="-mcpu=8540 -mhard-float"
3027             disable altivec
3028         ;;
3029     esac
3030
3031 elif enabled sparc; then
3032
3033     case $cpu in
3034         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3035             cpuflags="-mcpu=$cpu"
3036             disable vis
3037         ;;
3038         ultrasparc*|niagara[234])
3039             cpuflags="-mcpu=$cpu"
3040         ;;
3041     esac
3042
3043 elif enabled x86; then
3044
3045     case $cpu in
3046         i[345]86|pentium)
3047             cpuflags="-march=$cpu"
3048             disable mmx
3049         ;;
3050         # targets that do NOT support conditional mov (cmov)
3051         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3052             cpuflags="-march=$cpu"
3053             disable cmov
3054         ;;
3055         # targets that do support conditional mov (cmov)
3056         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3057             cpuflags="-march=$cpu"
3058             enable cmov
3059             enable fast_cmov
3060         ;;
3061         # targets that do support conditional mov but on which it's slow
3062         pentium4|pentium4m|prescott|nocona)
3063             cpuflags="-march=$cpu"
3064             enable cmov
3065             disable fast_cmov
3066         ;;
3067     esac
3068
3069 fi
3070
3071 if [ "$cpu" != generic ]; then
3072     add_cflags  $cpuflags
3073     add_asflags $cpuflags
3074 fi
3075
3076 # compiler sanity check
3077 check_exec <<EOF
3078 int main(void){ return 0; }
3079 EOF
3080 if test "$?" != 0; then
3081     echo "$cc is unable to create an executable file."
3082     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3083         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3084         echo "Only do this if you know what cross compiling means."
3085     fi
3086     die "C compiler test failed."
3087 fi
3088
3089 add_cppflags -D_ISOC99_SOURCE
3090 add_cxxflags -D__STDC_CONSTANT_MACROS
3091 check_cflags -std=c99
3092 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3093 #include <stdlib.h>
3094 EOF
3095 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3096 #include <stdlib.h>
3097 EOF
3098
3099 check_host_cflags -std=c99
3100 check_host_cflags -Wall
3101
3102 check_64bit(){
3103     arch32=$1
3104     arch64=$2
3105     expr=$3
3106     check_code cc "" "int test[2*($expr) - 1]" &&
3107         subarch=$arch64 || subarch=$arch32
3108 }
3109
3110 case "$arch" in
3111     aarch64|alpha|ia64)
3112         spic=$shared
3113     ;;
3114     mips)
3115         check_64bit mips mips64 '_MIPS_SIM > 1'
3116         spic=$shared
3117     ;;
3118     parisc)
3119         check_64bit parisc parisc64 'sizeof(void *) > 4'
3120         spic=$shared
3121     ;;
3122     ppc)
3123         check_64bit ppc ppc64 'sizeof(void *) > 4'
3124         spic=$shared
3125     ;;
3126     sparc)
3127         check_64bit sparc sparc64 'sizeof(void *) > 4'
3128         spic=$shared
3129     ;;
3130     x86)
3131         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3132         if test "$subarch" = "x86_64"; then
3133             spic=$shared
3134         fi
3135     ;;
3136     ppc)
3137         check_cc <<EOF && subarch="ppc64"
3138         int test[(int)sizeof(char*) - 7];
3139 EOF
3140     ;;
3141 esac
3142
3143 enable $subarch
3144 enabled spic && enable pic
3145
3146 # OS specific
3147 case $target_os in
3148     haiku)
3149         prefix_default="/boot/common"
3150         network_extralibs="-lnetwork"
3151         host_libs=
3152         ;;
3153     sunos)
3154         FFSERVERLDFLAGS=""
3155         SHFLAGS='-shared -Wl,-h,$$(@F)'
3156         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3157         network_extralibs="-lsocket -lnsl"
3158         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3159         # When using suncc to build, the Solaris linker will mark
3160         # an executable with each instruction set encountered by
3161         # the Solaris assembler.  As our libraries contain their own
3162         # guards for processor-specific code, instead suppress
3163         # generation of the HWCAPS ELF section on Solaris x86 only.
3164         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3165         nm_default='nm -P -g'
3166         ;;
3167     netbsd)
3168         disable symver
3169         oss_indev_extralibs="-lossaudio"
3170         oss_outdev_extralibs="-lossaudio"
3171         enabled gcc || check_ldflags -Wl,-zmuldefs
3172         ;;
3173     openbsd|bitrig)
3174         disable symver
3175         SHFLAGS='-shared'
3176         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3177         SLIB_INSTALL_LINKS=
3178         oss_indev_extralibs="-lossaudio"
3179         oss_outdev_extralibs="-lossaudio"
3180         ;;
3181     dragonfly)
3182         disable symver
3183         ;;
3184     freebsd)
3185         ;;
3186     bsd/os)
3187         add_extralibs -lpoll -lgnugetopt
3188         strip="strip -d"
3189         ;;
3190     darwin)
3191         gas="gas-preprocessor.pl $cc"
3192         enabled ppc && add_asflags -force_cpusubtype_ALL
3193         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3194         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3195         strip="${strip} -x"
3196         add_ldflags -Wl,-dynamic,-search_paths_first
3197         SLIBSUF=".dylib"
3198         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3199         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3200         FFSERVERLDFLAGS=-Wl,-bind_at_load
3201         objformat="macho"
3202         enabled x86_64 && objformat="macho64"
3203         enabled_any pic shared ||
3204             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3205         ;;
3206     mingw32*)
3207         if test $target_os = "mingw32ce"; then
3208             disable network
3209         else
3210             target_os=mingw32
3211         fi
3212         LIBTARGET=i386
3213         if enabled x86_64; then
3214             LIBTARGET="i386:x86-64"
3215         elif enabled arm; then
3216             LIBTARGET=arm-wince
3217         fi
3218         shlibdir_default="$bindir_default"
3219         SLIBPREF=""
3220         SLIBSUF=".dll"
3221         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3222         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3223         dlltool="${cross_prefix}dlltool"
3224         if check_cmd lib.exe -list; then
3225             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3226             if enabled x86_64; then
3227                 LIBTARGET=x64
3228             fi
3229         elif check_cmd $dlltool --version; then
3230             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3231         fi
3232         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3233         SLIB_INSTALL_LINKS=
3234         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3235         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3236         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3237         objformat="win32"
3238         ranlib=:
3239         enable dos_paths
3240         ;;
3241     win32|win64)
3242         if enabled shared; then
3243             # Link to the import library instead of the normal static library
3244             # for shared libs.
3245             LD_LIB='%.lib'
3246             # Cannot build shared and static libraries at the same time with
3247             # MSVC.
3248             disable static
3249         fi
3250         shlibdir_default="$bindir_default"
3251         SLIBPREF=""
3252         SLIBSUF=".dll"
3253         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3254         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3255         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3256         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3257         SLIB_INSTALL_LINKS=
3258         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3259         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3260         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3261         objformat="win32"
3262         ranlib=:
3263         enable dos_paths
3264         ;;
3265     cygwin*)
3266         target_os=cygwin
3267         shlibdir_default="$bindir_default"
3268         SLIBPREF="cyg"
3269         SLIBSUF=".dll"
3270         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3271         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3272         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3273         SLIB_INSTALL_LINKS=
3274         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3275         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3276         objformat="win32"
3277         enable dos_paths
3278         ;;
3279     *-dos|freedos|opendos)
3280         network_extralibs="-lsocket"
3281         objformat="coff"
3282         enable dos_paths
3283         add_cppflags -U__STRICT_ANSI__
3284         ;;
3285     linux)
3286         enable dv1394
3287         ;;
3288     irix*)
3289         target_os=irix
3290         ranlib="echo ignoring ranlib"
3291         ;;
3292     os/2*)
3293         strip="lxlite -CS"
3294         ln_s="cp -f"
3295         objformat="aout"
3296         add_cppflags -D_GNU_SOURCE
3297         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3298         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3299         FFSERVERLDFLAGS=""
3300         LIBSUF="_s.a"
3301         SLIBPREF=""
3302         SLIBSUF=".dll"
3303         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3304         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3305         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3306             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3307             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3308             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3309             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3310             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3311         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3312             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3313         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3314         enable dos_paths
3315         enable_weak os2threads
3316         ;;
3317     gnu/kfreebsd)
3318         add_cppflags -D_BSD_SOURCE
3319         ;;
3320     gnu)
3321         ;;
3322     qnx)
3323         add_cppflags -D_QNX_SOURCE
3324         network_extralibs="-lsocket"
3325         ;;
3326     symbian)
3327         SLIBSUF=".dll"
3328         enable dos_paths
3329         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3330         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3331         add_ldflags -Wl,--target1-abs,--no-undefined \
3332                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3333                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3334         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3335                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3336                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3337         ;;
3338     osf1)
3339         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3340         FFSERVERLDFLAGS=
3341         ;;
3342     minix)
3343         ;;
3344     plan9)
3345         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3346                      -D_REENTRANT_SOURCE        \
3347                      -D_RESEARCH_SOURCE         \
3348                      -DFD_SETSIZE=96            \
3349                      -DHAVE_SOCK_OPTS
3350         add_compat strtod.o strtod=avpriv_strtod
3351         network_extralibs='-lbsd'
3352         exeobjs=compat/plan9/main.o
3353         disable ffserver
3354         ln_s='ln -s -f'
3355         cp_f='cp'
3356         ;;
3357     none)
3358         ;;
3359     *)
3360         die "Unknown OS '$target_os'."
3361         ;;
3362 esac
3363
3364 # determine libc flavour
3365
3366 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3367 if check_cpp_condition features.h "defined __UCLIBC__"; then
3368     libc_type=uclibc
3369     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3370 elif check_cpp_condition features.h "defined __GLIBC__"; then
3371     libc_type=glibc
3372     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3373 # MinGW headers can be installed on Cygwin, so check for newlib first.
3374 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3375     libc_type=newlib
3376     add_cppflags -U__STRICT_ANSI__
3377 elif check_header _mingw.h; then
3378     libc_type=mingw
3379     check_cpp_condition _mingw.h \
3380         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3381             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3382         die "ERROR: MinGW runtime version must be >= 3.15."
3383     add_cppflags -U__STRICT_ANSI__
3384     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3385             __MINGW64_VERSION_MAJOR < 3"; then
3386         add_compat msvcrt/snprintf.o
3387         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3388     fi
3389 elif check_func_headers stdlib.h _get_doserrno; then
3390     libc_type=msvcrt
3391     add_compat strtod.o strtod=avpriv_strtod
3392     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3393                                  _snprintf=avpriv_snprintf  \
3394                                  vsnprintf=avpriv_vsnprintf
3395 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3396     libc_type=klibc
3397 fi
3398
3399 test -n "$libc_type" && enable $libc_type
3400
3401 # hacks for compiler/libc/os combinations
3402
3403 if enabled_all tms470 glibc; then
3404     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3405     add_cppflags -D__USER_LABEL_PREFIX__=
3406     add_cppflags -D__builtin_memset=memset
3407     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3408     add_cflags   -pds=48    # incompatible redefinition of macro
3409 fi
3410
3411 if enabled_all ccc glibc; then
3412     add_ldflags -Wl,-z,now  # calls to libots crash without this
3413 fi
3414
3415 esc(){
3416     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3417 }
3418
3419 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3420
3421 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3422
3423 set_default $PATHS_LIST
3424 set_default nm
3425
3426 # we need to build at least one lib type
3427 if ! enabled_any static shared; then
3428     cat <<EOF
3429 At least one library type must be built.
3430 Specify --enable-static to build the static libraries or --enable-shared to
3431 build the shared libraries as well. To only build the shared libraries specify
3432 --disable-static in addition to --enable-shared.
3433 EOF
3434     exit 1;
3435 fi
3436
3437 die_license_disabled() {
3438     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3439 }
3440
3441 die_license_disabled_gpl() {
3442     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3443 }
3444
3445 die_license_disabled gpl libcdio
3446 die_license_disabled gpl libutvideo
3447 die_license_disabled gpl libx264
3448 die_license_disabled gpl libxavs
3449 die_license_disabled gpl libxvid
3450 die_license_disabled gpl x11grab
3451
3452 die_license_disabled nonfree libaacplus
3453 die_license_disabled nonfree libfaac
3454 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3455 enabled gpl && die_license_disabled_gpl nonfree openssl
3456
3457 die_license_disabled version3 libopencore_amrnb
3458 die_license_disabled version3 libopencore_amrwb
3459 die_license_disabled version3 libvo_aacenc
3460 die_license_disabled version3 libvo_amrwbenc
3461
3462 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3463
3464 disabled optimizations || check_cflags -fomit-frame-pointer
3465
3466 enable_pic() {
3467     enable pic
3468     add_cppflags -DPIC
3469     add_cflags   -fPIC
3470     add_asflags  -fPIC
3471 }
3472
3473 enabled pic && enable_pic
3474
3475 check_cc <<EOF || die "Symbol mangling check failed."
3476 int ff_extern;
3477 EOF
3478 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3479 extern_prefix=${sym%%ff_extern*}
3480
3481 check_cc <<EOF && enable_weak inline_asm
3482 void foo(void) { __asm__ volatile ("" ::); }
3483 EOF
3484
3485 _restrict=
3486 for restrict_keyword in restrict __restrict__ __restrict; do
3487     check_cc <<EOF && _restrict=$restrict_keyword && break
3488 void foo(char * $restrict_keyword p);
3489 EOF
3490 done
3491
3492 check_cc <<EOF && enable attribute_packed
3493 struct { int x; } __attribute__((packed)) x;
3494 EOF
3495
3496 check_cc <<EOF && enable attribute_may_alias
3497 union { int x; } __attribute__((may_alias)) x;
3498 EOF
3499
3500 check_cc <<EOF || die "endian test failed"
3501 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3502 EOF
3503 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3504
3505 if enabled alpha; then
3506
3507     check_cflags -mieee
3508
3509 elif enabled arm; then
3510
3511     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3512 float func(float a, float b){ return a+b; }
3513 EOF
3514
3515     enabled thumb && check_cflags -mthumb || check_cflags -marm
3516     nogas=die
3517
3518     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3519         enable vfp_args
3520     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3521         case "${cross_prefix:-$cc}" in
3522             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3523             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3524 __asm__ (".eabi_attribute 28, 1");
3525 int main(void) { return 0; }
3526 EOF
3527         esac
3528         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3529     fi
3530
3531     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3532     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3533     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3534     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3535     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3536     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3537
3538     [ $target_os = linux ] ||
3539         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3540             $ARCH_EXT_LIST_ARM
3541
3542     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3543     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3544
3545     enabled_all armv6t2 shared !pic && enable_pic
3546
3547 elif enabled mips; then
3548
3549     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3550     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3551      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3552     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3553      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3554     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3555      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3556     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3557      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3558
3559 elif enabled parisc; then
3560
3561     if enabled gcc; then
3562         case $($cc -dumpversion) in
3563             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3564         esac
3565     fi
3566
3567 elif enabled ppc; then
3568
3569     enable local_aligned_8 local_aligned_16
3570
3571     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3572     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3573     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3574     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3575
3576     # AltiVec flags: The FSF version of GCC differs from the Apple version
3577     if enabled altivec; then
3578         nogas=warn
3579         check_cflags -maltivec -mabi=altivec &&
3580         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3581         check_cflags -faltivec
3582
3583         # check if our compiler supports Motorola AltiVec C API
3584         check_cc <<EOF || disable altivec
3585 $inc_altivec_h
3586 int main(void) {
3587     vector signed int v1 = (vector signed int) { 0 };
3588     vector signed int v2 = (vector signed int) { 1 };
3589     v1 = vec_add(v1, v2);
3590     return 0;
3591 }
3592 EOF
3593
3594         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3595     fi
3596
3597 elif enabled sparc; then
3598
3599     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3600
3601 elif enabled x86; then
3602
3603     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3604
3605     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3606
3607     enable local_aligned_8 local_aligned_16
3608
3609     # check whether EBP is available on x86
3610     # As 'i' is stored on the stack, this program will crash
3611     # if the base pointer is used to access it because the
3612     # base pointer is cleared in the inline assembly code.
3613     check_exec_crash <<EOF && enable ebp_available
3614 volatile int i=0;
3615 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3616 return i;
3617 EOF
3618
3619     # check whether EBX is available on x86
3620     check_inline_asm ebx_available '""::"b"(0)' &&
3621         check_inline_asm ebx_available '"":::"%ebx"'
3622
3623     # check whether xmm clobbers are supported
3624     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3625
3626     # check whether binutils is new enough to compile SSSE3/MMXEXT
3627     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3628     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3629
3630     if ! disabled_any asm mmx yasm; then
3631         if check_cmd $yasmexe --version; then
3632             enabled x86_64 && yasm_extra="-m amd64"
3633             yasm_debug="-g dwarf2"
3634         elif check_cmd nasm -v; then
3635             yasmexe=nasm
3636             yasm_debug="-g -F dwarf"
3637             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3638         fi
3639
3640         YASMFLAGS="-f $objformat $yasm_extra"
3641         enabled pic               && append YASMFLAGS "-DPIC"
3642         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3643         case "$objformat" in
3644             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3645         esac
3646
3647         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3648             die "yasm not found, use --disable-yasm for a crippled build"
3649         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3650         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3651         check_yasm "CPU amdnop" && enable cpunop
3652     fi
3653
3654     case "$cpu" in
3655         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3656             disable fast_clz
3657         ;;
3658     esac
3659
3660 fi
3661
3662 if enabled asm; then
3663     as=${gas:=$as}
3664     check_as <<EOF && enable gnu_as || \
3665         $nogas "GNU assembler not found, install gas-preprocessor"
3666 .macro m n
3667 \n: .int 0
3668 .endm
3669 m x
3670 EOF
3671 fi
3672
3673 check_ldflags -Wl,--as-needed
3674
3675 if check_func dlopen; then
3676     ldl=
3677 elif check_func dlopen -ldl; then
3678     ldl=-ldl
3679 fi
3680
3681 if ! disabled network; then
3682     check_type "sys/types.h sys/socket.h" socklen_t
3683     check_type netdb.h "struct addrinfo"
3684     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3685     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3686     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3687     check_type netinet/in.h "struct sockaddr_in6"
3688     check_type poll.h "struct pollfd"
3689     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3690     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3691     check_type netinet/sctp.h "struct sctp_event_subscribe"
3692     check_func getaddrinfo $network_extralibs
3693     check_func getservbyport $network_extralibs
3694     # Prefer arpa/inet.h over winsock2
3695     if check_header arpa/inet.h ; then
3696         check_func closesocket
3697     elif check_header winsock2.h ; then
3698         check_func_headers winsock2.h closesocket -lws2 &&
3699             network_extralibs="-lws2" ||
3700         { check_func_headers winsock2.h closesocket -lws2_32 &&
3701             network_extralibs="-lws2_32"; }
3702         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3703         check_type ws2tcpip.h socklen_t
3704         check_type ws2tcpip.h "struct addrinfo"
3705         check_type ws2tcpip.h "struct group_source_req"
3706         check_type ws2tcpip.h "struct ip_mreq_source"
3707         check_type ws2tcpip.h "struct ipv6_mreq"
3708         check_type winsock2.h "struct pollfd"
3709         check_type ws2tcpip.h "struct sockaddr_in6"
3710         check_type ws2tcpip.h "struct sockaddr_storage"
3711         check_struct winsock2.h "struct sockaddr" sa_len
3712     else
3713         disable network
3714     fi
3715 fi
3716
3717 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3718 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3719
3720 check_func  access
3721 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3722 check_func  fcntl
3723 check_func  fork
3724 check_func  gethrtime
3725 check_func  getopt
3726 check_func  getrusage
3727 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3728 check_func  gettimeofday
3729 check_func  iconv
3730 check_func  inet_aton $network_extralibs
3731 check_func  isatty
3732 check_func  localtime_r
3733 check_func  ${malloc_prefix}memalign            && enable memalign
3734 check_func  mkstemp
3735 check_func  mmap
3736 check_func  mprotect
3737 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3738 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3739 check_func  setrlimit
3740 check_func  strerror_r
3741 check_func  sched_getaffinity
3742 check_func  sysconf
3743 check_func  sysctl
3744 check_func  usleep
3745 check_func_headers conio.h kbhit
3746 check_func_headers windows.h PeekNamedPipe
3747 check_func_headers io.h setmode
3748 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3749 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3750 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3751 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3752 check_func_headers windows.h GetProcessAffinityMask
3753 check_func_headers windows.h GetProcessTimes
3754 check_func_headers windows.h GetSystemTimeAsFileTime
3755 check_func_headers windows.h MapViewOfFile
3756 check_func_headers windows.h SetConsoleTextAttribute
3757 check_func_headers windows.h Sleep
3758 check_func_headers windows.h VirtualAlloc
3759 check_func_headers glob.h glob
3760
3761 check_header direct.h
3762 check_header dlfcn.h
3763 check_header dxva.h
3764 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3765 check_header io.h
3766 check_header libcrystalhd/libcrystalhd_if.h
3767 check_header malloc.h
3768 check_header poll.h
3769 check_header sys/mman.h
3770 check_header sys/param.h
3771 check_header sys/resource.h
3772 check_header sys/select.h
3773 check_header sys/time.h
3774 check_header termios.h
3775 check_header unistd.h
3776 check_header vdpau/vdpau.h
3777 check_header vdpau/vdpau_x11.h
3778 check_header windows.h
3779 check_header X11/extensions/XvMClib.h
3780 check_header asm/types.h
3781
3782 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3783 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3784
3785 # check for VDA header
3786 if ! disabled vda && ! enabled ppc; then
3787     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3788         enable vda
3789         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3790     fi
3791 fi
3792
3793 if ! disabled w32threads && ! enabled pthreads; then
3794     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3795 fi
3796
3797 # check for some common methods of building with pthread support
3798 # do this before the optional library checks as some of them require pthreads
3799 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3800     enable pthreads
3801     if check_func pthread_create; then
3802         :
3803     elif check_func pthread_create -pthread; then
3804         add_cflags -pthread
3805         add_extralibs -pthread
3806     elif check_func pthread_create -pthreads; then
3807         add_cflags -pthreads
3808         add_extralibs -pthreads
3809     elif check_func pthread_create -lpthreadGC2; then
3810         add_extralibs -lpthreadGC2
3811     elif ! check_lib pthread.h pthread_create -lpthread; then
3812         disable pthreads
3813     fi
3814 fi
3815
3816 for thread in $THREADS_LIST; do
3817     if enabled $thread; then
3818         test -n "$thread_type" &&
3819             die "ERROR: Only one thread type must be selected." ||
3820             thread_type="$thread"
3821     fi
3822 done
3823
3824 if enabled pthreads; then
3825   check_func pthread_cancel
3826 fi
3827
3828 check_lib math.h sin -lm && LIBM="-lm"
3829 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3830 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3831
3832 atan2f_args=2
3833 ldexpf_args=2
3834 powf_args=2
3835
3836 for func in $MATH_FUNCS; do
3837     eval check_mathfunc $func \${${func}_args:-1}
3838 done
3839
3840 # these are off by default, so fail if requested and not available
3841 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3842 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3843 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3844 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3845 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3846 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3847 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3848 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3849 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3850                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3851                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3852 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3853 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3854 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3855 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"
3856 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3857 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3858 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3859                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3860                         done || die "ERROR: libgsm not found"; }
3861 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3862 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3863 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3864 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3865 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3866 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3867 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3868 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3869                          check_lib openjpeg.h opj_version -lopenjpeg ||
3870                          die "ERROR: libopenjpeg not found"; }
3871 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3872 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3873 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3874 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3875 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3876 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3877 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3878     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3879     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3880 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3881 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3882                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3883                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3884 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3885 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3886 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3887 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3888 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3889 enabled libvpx     && {
3890     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3891                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3892     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 ||
3893                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3894     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3895     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3896 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3897                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3898                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3899 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3900 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3901 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3902                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3903                         die "ERROR: openal not found"; } &&
3904                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3905                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3906 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3907                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3908                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3909                         die "ERROR: openssl not found"; }
3910
3911 if enabled gnutls; then
3912     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3913     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3914 fi
3915
3916 # libdc1394 check
3917 if enabled libdc1394; then
3918     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3919         enable libdc1394_2; } ||
3920     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3921         enable libdc1394_1; } ||
3922     die "ERROR: No version of libdc1394 found "
3923 fi
3924
3925 SDL_CONFIG="${cross_prefix}sdl-config"
3926 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3927     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3928     enable sdl &&
3929     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3930 else
3931   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3932     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3933     sdl_libs=$("${SDL_CONFIG}" --libs)
3934     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3935     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3936     enable sdl &&
3937     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3938   fi
3939 fi
3940 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3941
3942 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3943 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3944 perl --version > /dev/null 2>&1 && enable perl || disable perl
3945 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3946 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3947
3948 check_header linux/fb.h
3949 check_header linux/videodev.h
3950 check_header linux/videodev2.h
3951 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3952
3953 check_header sys/videoio.h
3954
3955 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3956 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3957 # w32api 3.12 had it defined wrong
3958 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3959
3960 check_type "dshow.h" IBaseFilter
3961
3962 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3963 { check_header dev/bktr/ioctl_meteor.h &&
3964   check_header dev/bktr/ioctl_bt848.h; } ||
3965 { check_header machine/ioctl_meteor.h &&
3966   check_header machine/ioctl_bt848.h; } ||
3967 { check_header dev/video/meteor/ioctl_meteor.h &&
3968   check_header dev/video/bktr/ioctl_bt848.h; } ||
3969 check_header dev/ic/bt8xx.h
3970
3971 check_header sndio.h
3972 if check_struct sys/soundcard.h audio_buf_info bytes; then
3973     enable_safe sys/soundcard.h
3974 else
3975     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3976     #include <sys/soundcard.h>
3977     audio_buf_info abc;
3978 EOF
3979 fi
3980 check_header soundcard.h
3981
3982 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3983
3984 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3985     check_func jack_port_get_latency_range -ljack
3986
3987 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3988
3989 if enabled libcdio; then
3990     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
3991 fi
3992
3993 enabled x11grab                                           &&
3994 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3995 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3996 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3997
3998 if ! disabled vaapi; then
3999     check_lib va/va.h vaInitialize -lva && {
4000         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4001         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4002     } || disable vaapi
4003 fi
4004
4005 if ! disabled vdpau && enabled vdpau_vdpau_h; then
4006     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4007         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
4008 fi
4009
4010 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4011 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4012 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"
4013
4014 # add some useful compiler flags if supported
4015 check_cflags -Wdeclaration-after-statement
4016 check_cflags -Wall
4017 check_cflags -Wno-parentheses
4018 check_cflags -Wno-switch
4019 check_cflags -Wno-format-zero-length
4020 check_cflags -Wdisabled-optimization
4021 check_cflags -Wpointer-arith
4022 check_cflags -Wredundant-decls
4023 check_cflags -Wno-pointer-sign
4024 check_cflags -Wwrite-strings
4025 check_cflags -Wtype-limits
4026 check_cflags -Wundef
4027 check_cflags -Wmissing-prototypes
4028 check_cflags -Wno-pointer-to-int-cast
4029 check_cflags -Wstrict-prototypes
4030 enabled extra_warnings && check_cflags -Winline
4031
4032 # add some linker flags
4033 check_ldflags -Wl,--warn-common
4034 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4035 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4036
4037 enabled xmm_clobber_test &&
4038     check_ldflags -Wl,--wrap,avcodec_open2              \
4039                   -Wl,--wrap,avcodec_decode_audio4      \
4040                   -Wl,--wrap,avcodec_decode_video2      \
4041                   -Wl,--wrap,avcodec_decode_subtitle2   \
4042                   -Wl,--wrap,avcodec_encode_audio2      \
4043                   -Wl,--wrap,avcodec_encode_video       \
4044                   -Wl,--wrap,avcodec_encode_subtitle    \
4045                   -Wl,--wrap,sws_scale ||
4046     disable xmm_clobber_test
4047
4048 echo "X{};" > $TMPV
4049 if test_ldflags -Wl,--version-script,$TMPV; then
4050     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4051     check_cc <<EOF && enable symver_asm_label
4052 void ff_foo(void) __asm__ ("av_foo@VERSION");
4053 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4054 EOF
4055     check_cc <<EOF && enable symver_gnu_asm
4056 __asm__(".symver ff_foo,av_foo@VERSION");
4057 void ff_foo(void) {}
4058 EOF
4059 fi
4060
4061 if [ -z "$optflags" ]; then
4062     if enabled small; then
4063         optflags=$cflags_size
4064     elif enabled optimizations; then
4065         optflags=$cflags_speed
4066     else
4067         optflags=$cflags_noopt
4068     fi
4069 fi
4070
4071 check_optflags(){
4072     check_cflags "$@"
4073     enabled lto && check_ldflags "$@"
4074 }
4075
4076
4077 if enabled lto; then
4078     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4079     check_cflags  -flto
4080     check_ldflags -flto $cpuflags
4081 fi
4082
4083 check_optflags $optflags
4084 check_optflags -fno-math-errno
4085 check_optflags -fno-signed-zeros
4086
4087 enabled ftrapv && check_cflags -ftrapv
4088
4089 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4090 int x;
4091 EOF
4092
4093
4094 if enabled icc; then
4095     # Just warnings, no remarks
4096     check_cflags -w1
4097     # -wd: Disable following warnings
4098     # 144, 167, 556: -Wno-pointer-sign
4099     # 188: enumerated type mixed with another type
4100     # 1292: attribute "foo" ignored
4101     # 1419: external declaration in primary source file
4102     # 10006: ignoring unknown option -fno-signed-zeros
4103     # 10148: ignoring unknown option -Wno-parentheses
4104     # 10156: ignoring option '-W'; no argument required
4105     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4106     # 11030: Warning unknown option --as-needed
4107     # 10156: ignoring option '-export'; no argument required
4108     check_ldflags -wd10156,11030
4109     # Allow to compile with optimizations
4110     check_ldflags -march=$cpu
4111     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4112     enable ebp_available
4113     if enabled x86_32; then
4114         icc_version=$($cc -dumpversion)
4115         test ${icc_version%%.*} -ge 11 &&
4116             check_cflags -falign-stack=maintain-16-byte ||
4117             disable aligned_stack
4118     fi
4119 elif enabled ccc; then
4120     # disable some annoying warnings
4121     add_cflags -msg_disable bitnotint
4122     add_cflags -msg_disable mixfuncvoid
4123     add_cflags -msg_disable nonstandcast
4124     add_cflags -msg_disable unsupieee
4125 elif enabled gcc; then
4126     check_optflags -fno-tree-vectorize
4127     check_cflags -Werror=implicit-function-declaration
4128     check_cflags -Werror=missing-prototypes
4129     check_cflags -Werror=return-type
4130     check_cflags -Werror=vla
4131 elif enabled llvm_gcc; then
4132     check_cflags -mllvm -stack-alignment=16
4133 elif enabled clang; then
4134     check_cflags -mllvm -stack-alignment=16
4135     check_cflags -Qunused-arguments
4136     check_cflags -Werror=implicit-function-declaration
4137     check_cflags -Werror=missing-prototypes
4138     check_cflags -Werror=return-type
4139 elif enabled armcc; then
4140     # 2523: use of inline assembler is deprecated
4141     add_cflags -W${armcc_opt},--diag_suppress=2523
4142     add_cflags -W${armcc_opt},--diag_suppress=1207
4143     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4144     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4145     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4146     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4147 elif enabled tms470; then
4148     add_cflags -pds=824 -pds=837
4149 elif enabled pathscale; then
4150     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4151 elif enabled msvc; then
4152     enabled x86_32 && disable aligned_stack
4153 fi
4154
4155 case $target_os in
4156     osf1)
4157         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4158     ;;
4159     plan9)
4160         add_cppflags -Dmain=plan9_main
4161     ;;
4162 esac
4163
4164 enabled_any $THREADS_LIST      && enable threads
4165
4166 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4167
4168 check_deps $CONFIG_LIST       \
4169            $CONFIG_EXTRA      \
4170            $HAVE_LIST         \
4171            $ALL_COMPONENTS    \
4172
4173
4174 if test $target_os = "haiku"; then
4175     disable memalign
4176     disable posix_memalign
4177 fi
4178
4179 ! enabled_any memalign posix_memalign aligned_malloc &&
4180     enabled_any $need_memalign && enable memalign_hack
4181
4182 # add_dep lib dep
4183 # -> enable ${lib}_deps_${dep}
4184 # -> add $dep to ${lib}_deps only once
4185 add_dep() {
4186     lib=$1
4187     dep=$2
4188     enabled "${lib}_deps_${dep}" && return 0
4189     enable  "${lib}_deps_${dep}"
4190     prepend "${lib}_deps" $dep
4191 }
4192
4193 # merge deps lib components
4194 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4195 merge_deps() {
4196     lib=$1
4197     shift
4198     for comp in $*; do
4199         enabled $comp || continue
4200         eval "dep=\"\$${comp}_deps\""
4201         for d in $dep; do
4202             add_dep $lib $d
4203         done
4204     done
4205 }
4206
4207 merge_deps libavfilter $FILTER_LIST
4208
4209 echo "install prefix            $prefix"
4210 echo "source path               $source_path"
4211 echo "C compiler                $cc"
4212 echo "ARCH                      $arch ($cpu)"
4213 if test "$build_suffix" != ""; then
4214     echo "build suffix              $build_suffix"
4215 fi
4216 if test "$progs_suffix" != ""; then
4217     echo "progs suffix              $progs_suffix"
4218 fi
4219 if test "$extra_version" != ""; then
4220     echo "version string suffix     $extra_version"
4221 fi
4222 echo "big-endian                ${bigendian-no}"
4223 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4224 if enabled x86; then
4225     echo "${yasmexe}                      ${yasm-no}"
4226     echo "MMX enabled               ${mmx-no}"
4227     echo "MMXEXT enabled            ${mmxext-no}"
4228     echo "3DNow! enabled            ${amd3dnow-no}"
4229     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4230     echo "SSE enabled               ${sse-no}"
4231     echo "SSSE3 enabled             ${ssse3-no}"
4232     echo "AVX enabled               ${avx-no}"
4233     echo "FMA4 enabled              ${fma4-no}"
4234     echo "CMOV enabled              ${cmov-no}"
4235     echo "CMOV is fast              ${fast_cmov-no}"
4236     echo "EBX available             ${ebx_available-no}"
4237     echo "EBP available             ${ebp_available-no}"
4238 fi
4239 if enabled arm; then
4240     echo "ARMv5TE enabled           ${armv5te-no}"
4241     echo "ARMv6 enabled             ${armv6-no}"
4242     echo "ARMv6T2 enabled           ${armv6t2-no}"
4243     echo "VFP enabled               ${vfp-no}"
4244     echo "NEON enabled              ${neon-no}"
4245     echo "THUMB enabled             ${thumb-no}"
4246 fi
4247 if enabled mips; then
4248     echo "MIPS FPU enabled          ${mipsfpu-no}"
4249     echo "MIPS32R2 enabled          ${mips32r2-no}"
4250     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4251     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4252 fi
4253 if enabled ppc; then
4254     echo "AltiVec enabled           ${altivec-no}"
4255     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4256     echo "dcbzl available           ${dcbzl-no}"
4257 fi
4258 if enabled sparc; then
4259     echo "VIS enabled               ${vis-no}"
4260 fi
4261 echo "debug symbols             ${debug-no}"
4262 echo "strip symbols             ${stripping-no}"
4263 echo "optimize for size         ${small-no}"
4264 echo "optimizations             ${optimizations-no}"
4265 echo "static                    ${static-no}"
4266 echo "shared                    ${shared-no}"
4267 echo "postprocessing support    ${postproc-no}"
4268 echo "new filter support        ${avfilter-no}"
4269 echo "network support           ${network-no}"
4270 echo "threading support         ${thread_type-no}"
4271 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4272 echo "SDL support               ${sdl-no}"
4273 echo "libdxva2 enabled          ${dxva2-no}"
4274 echo "libva enabled             ${vaapi-no}"
4275 echo "libvdpau enabled          ${vdpau-no}"
4276 echo "AVISynth enabled          ${avisynth-no}"
4277 echo "frei0r enabled            ${frei0r-no}"
4278 echo "gnutls enabled            ${gnutls-no}"
4279 echo "libaacplus enabled        ${libaacplus-no}"
4280 echo "libass enabled            ${libass-no}"
4281 echo "libcaca enabled           ${libcaca-no}"
4282 echo "libcdio support           ${libcdio-no}"
4283 echo "libcelt enabled           ${libcelt-no}"
4284 echo "libdc1394 support         ${libdc1394-no}"
4285 echo "libfaac enabled           ${libfaac-no}"
4286 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4287 echo "libgsm enabled            ${libgsm-no}"
4288 echo "libiec61883 support       ${libiec61883-no}"
4289 echo "libilbc enabled           ${libilbc-no}"
4290 echo "libmodplug enabled        ${libmodplug-no}"
4291 echo "libmp3lame enabled        ${libmp3lame-no}"
4292 echo "libnut enabled            ${libnut-no}"
4293 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4294 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4295 echo "libopencv support         ${libopencv-no}"
4296 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4297 echo "libopus enabled           ${libopus-no}"
4298 echo "libpulse enabled          ${libpulse-no}"
4299 echo "librtmp enabled           ${librtmp-no}"
4300 echo "libschroedinger enabled   ${libschroedinger-no}"
4301 echo "libsoxr enabled           ${libsoxr-no}"
4302 echo "libspeex enabled          ${libspeex-no}"
4303 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4304 echo "libtheora enabled         ${libtheora-no}"
4305 echo "libtwolame enabled        ${libtwolame-no}"
4306 echo "libutvideo enabled        ${libutvideo-no}"
4307 echo "libv4l2 enabled           ${libv4l2-no}"
4308 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4309 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4310 echo "libvorbis enabled         ${libvorbis-no}"
4311 echo "libvpx enabled            ${libvpx-no}"
4312 echo "libx264 enabled           ${libx264-no}"
4313 echo "libxavs enabled           ${libxavs-no}"
4314 echo "libxvid enabled           ${libxvid-no}"
4315 echo "openal enabled            ${openal-no}"
4316 echo "openssl enabled           ${openssl-no}"
4317 echo "zlib enabled              ${zlib-no}"
4318 echo "bzlib enabled             ${bzlib-no}"
4319 echo "texi2html enabled         ${texi2html-no}"
4320 echo "perl enabled              ${perl-no}"
4321 echo "pod2man enabled           ${pod2man-no}"
4322 echo "makeinfo enabled          ${makeinfo-no}"
4323 test -n "$random_seed" &&
4324     echo "random seed               ${random_seed}"
4325 echo
4326
4327 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4328     echo "Enabled ${type}s:"
4329     eval list=\$$(toupper $type)_LIST
4330     print_enabled '_*' $list | sort | pr -r -3 -t
4331     echo
4332 done
4333
4334 license="LGPL version 2.1 or later"
4335 if enabled nonfree; then
4336     license="nonfree and unredistributable"
4337 elif enabled gplv3; then
4338     license="GPL version 3 or later"
4339 elif enabled lgplv3; then
4340     license="LGPL version 3 or later"
4341 elif enabled gpl; then
4342     license="GPL version 2 or later"
4343 fi
4344
4345 echo "License: $license"
4346
4347 echo "Creating config.mak and config.h..."
4348
4349 test -e Makefile || $ln_s "$source_path/Makefile" .
4350
4351 enabled stripping || strip="echo skipping strip"
4352
4353 config_files="$TMPH config.mak"
4354
4355 cat > config.mak <<EOF
4356 # Automatically generated by configure - do not modify!
4357 ifndef FFMPEG_CONFIG_MAK
4358 FFMPEG_CONFIG_MAK=1
4359 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4360 prefix=$prefix
4361 LIBDIR=\$(DESTDIR)$libdir
4362 SHLIBDIR=\$(DESTDIR)$shlibdir
4363 INCDIR=\$(DESTDIR)$incdir
4364 BINDIR=\$(DESTDIR)$bindir
4365 DATADIR=\$(DESTDIR)$datadir
4366 MANDIR=\$(DESTDIR)$mandir
4367 SRC_PATH=$source_path
4368 ifndef MAIN_MAKEFILE
4369 SRC_PATH:=\$(SRC_PATH:.%=..%)
4370 endif
4371 CC_IDENT=$cc_ident
4372 ARCH=$arch
4373 CC=$cc
4374 CXX=$cxx
4375 AS=$as
4376 LD=$ld
4377 DEPCC=$dep_cc
4378 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4379 DEPAS=$as
4380 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4381 YASM=$yasmexe
4382 DEPYASM=$yasmexe
4383 AR=$ar
4384 ARFLAGS=$arflags
4385 AR_O=$ar_o
4386 RANLIB=$ranlib
4387 CP=cp -p
4388 LN_S=$ln_s
4389 STRIP=$strip
4390 CPPFLAGS=$CPPFLAGS
4391 CFLAGS=$CFLAGS
4392 CXXFLAGS=$CXXFLAGS
4393 ASFLAGS=$ASFLAGS
4394 AS_C=$AS_C
4395 AS_O=$AS_O
4396 CC_C=$CC_C
4397 CC_E=$CC_E
4398 CC_O=$CC_O
4399 CXX_C=$CXX_C
4400 CXX_O=$CXX_O
4401 LD_O=$LD_O
4402 LD_LIB=$LD_LIB
4403 LD_PATH=$LD_PATH
4404 DLLTOOL=$dlltool
4405 LDFLAGS=$LDFLAGS
4406 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4407 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4408 YASMFLAGS=$YASMFLAGS
4409 BUILDSUF=$build_suffix
4410 PROGSSUF=$progs_suffix
4411 FULLNAME=$FULLNAME
4412 LIBPREF=$LIBPREF
4413 LIBSUF=$LIBSUF
4414 LIBNAME=$LIBNAME
4415 SLIBPREF=$SLIBPREF
4416 SLIBSUF=$SLIBSUF
4417 EXESUF=$EXESUF
4418 EXTRA_VERSION=$extra_version
4419 CCDEP=$CCDEP
4420 CXXDEP=$CXXDEP
4421 CCDEP_FLAGS=$CCDEP_FLAGS
4422 ASDEP=$ASDEP
4423 ASDEP_FLAGS=$ASDEP_FLAGS
4424 CC_DEPFLAGS=$CC_DEPFLAGS
4425 AS_DEPFLAGS=$AS_DEPFLAGS
4426 HOSTCC=$host_cc
4427 HOSTLD=$host_ld
4428 HOSTCFLAGS=$host_cflags
4429 HOSTEXESUF=$HOSTEXESUF
4430 HOSTLDFLAGS=$host_ldflags
4431 HOSTLIBS=$host_libs
4432 DEPHOSTCC=$host_cc
4433 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4434 HOSTCCDEP=$HOSTCCDEP
4435 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4436 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4437 HOSTCC_C=$HOSTCC_C
4438 HOSTCC_O=$HOSTCC_O
4439 HOSTLD_O=$HOSTLD_O
4440 TARGET_EXEC=$target_exec
4441 TARGET_PATH=$target_path
4442 LIBS-ffplay=$sdl_libs
4443 CFLAGS-ffplay=$sdl_cflags
4444 ZLIB=$($ldflags_filter -lz)
4445 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4446 EXTRALIBS=$extralibs
4447 COMPAT_OBJS=$compat_objs
4448 EXEOBJS=$exeobjs
4449 INSTALL=$install
4450 LIBTARGET=${LIBTARGET}
4451 SLIBNAME=${SLIBNAME}
4452 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4453 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4454 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4455 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4456 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4457 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4458 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4459 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4460 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4461 NOREDZONE_FLAGS=$noredzone_flags
4462 EOF
4463
4464 get_version(){
4465     lcname=lib${1}
4466     name=$(toupper $lcname)
4467     file=$source_path/$lcname/version.h
4468     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4469     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4470     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4471     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4472     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4473 }
4474
4475 map 'get_version $v' $LIBRARY_LIST
4476
4477 cat > $TMPH <<EOF
4478 /* Automatically generated by configure - do not modify! */
4479 #ifndef FFMPEG_CONFIG_H
4480 #define FFMPEG_CONFIG_H
4481 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4482 #define FFMPEG_LICENSE "$(c_escape $license)"
4483 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4484 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4485 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4486 #define av_restrict $_restrict
4487 #define EXTERN_PREFIX "${extern_prefix}"
4488 #define EXTERN_ASM ${extern_prefix}
4489 #define SLIBSUF "$SLIBSUF"
4490 #define HAVE_MMX2 HAVE_MMXEXT
4491 EOF
4492
4493 test -n "$assert_level" &&
4494     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4495
4496 test -n "$malloc_prefix" &&
4497     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4498
4499 if enabled yasm; then
4500     append config_files $TMPASM
4501     printf '' >$TMPASM
4502 fi
4503
4504 print_config ARCH_   "$config_files" $ARCH_LIST
4505 print_config HAVE_   "$config_files" $HAVE_LIST
4506 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4507                                      $CONFIG_EXTRA      \
4508                                      $ALL_COMPONENTS    \
4509
4510 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4511 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4512
4513 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4514 cp_if_changed $TMPH config.h
4515 touch .config
4516
4517 enabled yasm && cp_if_changed $TMPASM config.asm
4518
4519 cat > $TMPH <<EOF
4520 /* Generated by ffconf */
4521 #ifndef AVUTIL_AVCONFIG_H
4522 #define AVUTIL_AVCONFIG_H
4523 EOF
4524
4525 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4526
4527 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4528
4529 cp_if_changed $TMPH libavutil/avconfig.h
4530
4531 if test -n "$WARNINGS"; then
4532     printf "\n$WARNINGS"
4533     enabled fatal_warnings && exit 1
4534 fi
4535
4536 # build pkg-config files
4537
4538 pkgconfig_generate(){
4539     name=$1
4540     shortname=${name#lib}${build_suffix}
4541     comment=$2
4542     version=$3
4543     libs=$4
4544     requires=$5
4545     enabled ${name#lib} || return 0
4546     mkdir -p $name
4547     cat <<EOF > $name/$name${build_suffix}.pc
4548 prefix=$prefix
4549 exec_prefix=\${prefix}
4550 libdir=$libdir
4551 includedir=$incdir
4552
4553 Name: $name
4554 Description: $comment
4555 Version: $version
4556 Requires: $(enabled shared || echo $requires)
4557 Requires.private: $(enabled shared && echo $requires)
4558 Conflicts:
4559 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4560 Libs.private: $(enabled shared && echo $libs)
4561 Cflags: -I\${includedir}
4562 EOF
4563
4564 mkdir -p doc/examples/pc-uninstalled
4565 includedir=${source_path}
4566 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4567     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4568 prefix=
4569 exec_prefix=
4570 libdir=\${pcfiledir}/../../../$name
4571 includedir=${includedir}
4572
4573 Name: $name
4574 Description: $comment
4575 Version: $version
4576 Requires: $requires
4577 Conflicts:
4578 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4579 Cflags: -I\${includedir}
4580 EOF
4581 }
4582
4583 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4584 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4585 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4586 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4587 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4588 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4589 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4590 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4591
4592 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4593 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4594
4595 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4596 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4597 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4598 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4599 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4600 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4601 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4602 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4603 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4604
4605 fix_ffmpeg_remote(){
4606     git_remote_from=$1
4607     git_remote_to=$2
4608     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4609     if [ "$fixme_remote" != "" ]; then
4610         echolog "
4611 Outdated domain in git config, the official domain for ffmpeg git is since
4612 November 2011, source.ffmpeg.org, both the old and the new point to the same
4613 repository and server. To update it enter the following commands:
4614 "
4615         for remote in $fixme_remote; do
4616             echolog "git remote set-url $remote $git_remote_to"
4617         done
4618     fi
4619 }
4620
4621 if test -f "$source_path/.git/config"; then
4622     remote_from=git.videolan.org
4623     remote_to=source.ffmpeg.org
4624     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4625     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4626 fi