interplayvideo: use hpeldsp instead of dsputil for half-pel functions.
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --disable-network        disable network support [no]
134   --disable-dct            disable DCT code
135   --disable-dwt            disable DWT code
136   --disable-lsp            disable LSP code
137   --disable-lzo            disable LZO decoder code
138   --disable-mdct           disable MDCT code
139   --disable-rdft           disable RDFT code
140   --disable-fft            disable FFT code
141
142 Hardware accelerators:
143   --enable-dxva2           enable DXVA2 code
144   --enable-vaapi           enable VAAPI code
145   --enable-vda             enable VDA code
146   --enable-vdpau           enable VDPAU code
147
148 Individual component options:
149   --disable-everything     disable all components listed below
150   --disable-encoder=NAME   disable encoder NAME
151   --enable-encoder=NAME    enable encoder NAME
152   --disable-encoders       disable all encoders
153   --disable-decoder=NAME   disable decoder NAME
154   --enable-decoder=NAME    enable decoder NAME
155   --disable-decoders       disable all decoders
156   --disable-hwaccel=NAME   disable hwaccel NAME
157   --enable-hwaccel=NAME    enable hwaccel NAME
158   --disable-hwaccels       disable all hwaccels
159   --disable-muxer=NAME     disable muxer NAME
160   --enable-muxer=NAME      enable muxer NAME
161   --disable-muxers         disable all muxers
162   --disable-demuxer=NAME   disable demuxer NAME
163   --enable-demuxer=NAME    enable demuxer NAME
164   --disable-demuxers       disable all demuxers
165   --enable-parser=NAME     enable parser NAME
166   --disable-parser=NAME    disable parser NAME
167   --disable-parsers        disable all parsers
168   --enable-bsf=NAME        enable bitstream filter NAME
169   --disable-bsf=NAME       disable bitstream filter NAME
170   --disable-bsfs           disable all bitstream filters
171   --enable-protocol=NAME   enable protocol NAME
172   --disable-protocol=NAME  disable protocol NAME
173   --disable-protocols      disable all protocols
174   --enable-indev=NAME      enable input device NAME
175   --disable-indev=NAME     disable input device NAME
176   --disable-indevs         disable input devices
177   --enable-outdev=NAME     enable output device NAME
178   --disable-outdev=NAME    disable output device NAME
179   --disable-outdevs        disable output devices
180   --disable-devices        disable all devices
181   --enable-filter=NAME     enable filter NAME
182   --disable-filter=NAME    disable filter NAME
183   --disable-filters        disable all filters
184
185 External library support:
186   --enable-avisynth        enable reading of AVISynth script files [no]
187   --enable-bzlib           enable bzlib [autodetect]
188   --enable-fontconfig      enable fontconfig
189   --enable-frei0r          enable frei0r video filtering
190   --enable-gnutls          enable gnutls [no]
191   --enable-iconv           enable iconv [autodetect]
192   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
193   --enable-libass          enable libass subtitles rendering [no]
194   --enable-libbluray       enable BluRay reading using libbluray [no]
195   --enable-libcaca         enable textual display using libcaca
196   --enable-libcelt         enable CELT decoding via libcelt [no]
197   --enable-libcdio         enable audio CD grabbing with libcdio
198   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
199                            and libraw1394 [no]
200   --enable-libfaac         enable AAC encoding via libfaac [no]
201   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
202   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
203   --enable-libfreetype     enable libfreetype [no]
204   --enable-libgsm          enable GSM de/encoding via libgsm [no]
205   --enable-libiec61883     enable iec61883 via libiec61883 [no]
206   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
207   --enable-libmodplug      enable ModPlug via libmodplug [no]
208   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
209   --enable-libnut          enable NUT (de)muxing via libnut,
210                            native (de)muxer exists [no]
211   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
212   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
213   --enable-libopencv       enable video filtering via libopencv [no]
214   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
215   --enable-libopus         enable Opus decoding via libopus [no]
216   --enable-libpulse        enable Pulseaudio input via libpulse [no]
217   --enable-librtmp         enable RTMP[E] support via librtmp [no]
218   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
219   --enable-libsoxr         enable Include libsoxr resampling [no]
220   --enable-libspeex        enable Speex de/encoding via libspeex [no]
221   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
222   --enable-libtheora       enable Theora encoding via libtheora [no]
223   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
224   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
225   --enable-libv4l2         enable libv4l2/v4l-utils [no]
226   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
227   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
228   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
229                            native implementation exists [no]
230   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
231   --enable-libx264         enable H.264 encoding via x264 [no]
232   --enable-libxavs         enable AVS encoding via xavs [no]
233   --enable-libxvid         enable Xvid encoding via xvidcore,
234                            native MPEG-4/Xvid encoder exists [no]
235   --enable-openal          enable OpenAL 1.1 capture support [no]
236   --enable-openssl         enable openssl [no]
237   --enable-x11grab         enable X11 grabbing [no]
238   --enable-zlib            enable zlib [autodetect]
239
240 Advanced options (experts only):
241   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
242   --enable-cross-compile   assume a cross-compiler is used
243   --sysroot=PATH           root of cross-build tree
244   --sysinclude=PATH        location of cross-build system headers
245   --target-os=OS           compiler targets OS [$target_os]
246   --target-exec=CMD        command to run executables on target
247   --target-path=DIR        path to view of build directory on target
248   --toolchain=NAME         set tool defaults according to NAME
249   --nm=NM                  use nm tool NM [$nm_default]
250   --ar=AR                  use archive tool AR [$ar_default]
251   --as=AS                  use assembler AS [$as_default]
252   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
253   --cc=CC                  use C compiler CC [$cc_default]
254   --cxx=CXX                use C compiler CXX [$cxx_default]
255   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
256   --ld=LD                  use linker LD [$ld_default]
257   --host-cc=HOSTCC         use host C compiler HOSTCC
258   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
259   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
260   --host-ld=HOSTLD         use host linker HOSTLD
261   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
262   --host-libs=HLIBS        use libs HLIBS when linking for host
263   --host-os=OS             compiler host OS [$target_os]
264   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
265   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
266   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
267   --extra-libs=ELIBS       add ELIBS [$ELIBS]
268   --extra-version=STRING   version string suffix []
269   --optflags=OPTFLAGS      override optimization-related compiler flags
270   --build-suffix=SUFFIX    library name suffix []
271   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
272   --progs-suffix=SUFFIX    program name suffix []
273   --arch=ARCH              select architecture [$arch]
274   --cpu=CPU                select the minimum required CPU (affects
275                            instruction selection, may crash on older CPUs)
276   --enable-pic             build position-independent code
277   --enable-sram            allow use of on-chip SRAM
278   --enable-thumb           compile for Thumb instruction set
279   --disable-symver         disable symbol versioning
280   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
281   --disable-safe-bitstream-reader
282                            disable buffer boundary checking in bitreaders
283                            (faster, but may crash)
284   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
285   --enable-lto             use link-time optimization
286
287 Optimization options (experts only):
288   --disable-asm            disable all assembler optimizations
289   --disable-altivec        disable AltiVec optimizations
290   --disable-amd3dnow       disable 3DNow! optimizations
291   --disable-amd3dnowext    disable 3DNow! extended optimizations
292   --disable-mmx            disable MMX optimizations
293   --disable-mmxext         disable MMXEXT optimizations
294   --disable-sse            disable SSE optimizations
295   --disable-sse2           disable SSE2 optimizations
296   --disable-sse3           disable SSE3 optimizations
297   --disable-ssse3          disable SSSE3 optimizations
298   --disable-sse4           disable SSE4 optimizations
299   --disable-sse42          disable SSE4.2 optimizations
300   --disable-avx            disable AVX optimizations
301   --disable-fma4           disable FMA4 optimizations
302   --disable-armv5te        disable armv5te optimizations
303   --disable-armv6          disable armv6 optimizations
304   --disable-armv6t2        disable armv6t2 optimizations
305   --disable-vfp            disable VFP optimizations
306   --disable-neon           disable NEON optimizations
307   --disable-vis            disable VIS optimizations
308   --disable-inline-asm     disable use of inline assembler
309   --disable-yasm           disable use of yasm assembler
310   --disable-mips32r2       disable MIPS32R2 optimizations
311   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
312   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
313   --disable-mipsfpu        disable floating point MIPS optimizations
314   --disable-fast-unaligned consider unaligned accesses slow
315
316 Developer options (useful when working on FFmpeg itself):
317   --enable-coverage        build with test coverage instrumentation
318   --disable-debug          disable debugging symbols
319   --enable-debug=LEVEL     set the debug level [$debuglevel]
320   --disable-optimizations  disable compiler optimizations
321   --enable-extra-warnings  enable more compiler warnings
322   --disable-stripping      disable stripping of executables and shared libraries
323   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
324                            2 causes a slowdown at runtime.
325   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
326   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
327                            leaks and errors, using the specified valgrind binary.
328                            Cannot be combined with --target-exec
329   --enable-ftrapv          Trap arithmetic overflows
330   --samples=PATH           location of test samples for FATE, if not set use
331                            \$FATE_SAMPLES at make invocation time.
332   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
333                            should be used only for debugging purposes)
334   --enable-random          randomly enable/disable components
335   --disable-random
336   --enable-random=LIST     randomly enable/disable specific components or
337   --disable-random=LIST    component groups. LIST is a comma-separated list
338                            of NAME[:PROB] entries where NAME is a component
339                            (group) and PROB the probability associated with
340                            NAME (default 0.5).
341   --random-seed=VALUE      seed value for --enable/disable-random
342
343 NOTE: Object files are built at the place where configure is launched.
344 EOF
345   exit 0
346 }
347
348 quotes='""'
349
350 log(){
351     echo "$@" >> $logfile
352 }
353
354 log_file(){
355     log BEGIN $1
356     pr -n -t $1 >> $logfile
357     log END $1
358 }
359
360 echolog(){
361     log "$@"
362     echo "$@"
363 }
364
365 warn(){
366     log "WARNING: $*"
367     WARNINGS="${WARNINGS}WARNING: $*\n"
368 }
369
370 die(){
371     echolog "$@"
372     cat <<EOF
373
374 If you think configure made a mistake, make sure you are using the latest
375 version from Git.  If the latest version fails, report the problem to the
376 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
377 EOF
378     if disabled logging; then
379         cat <<EOF
380 Rerun configure with logging enabled (do not use --disable-logging), and
381 include the log this produces with your report.
382 EOF
383     else
384         cat <<EOF
385 Include the log file "$logfile" produced by configure as this will help
386 solving the problem.
387 EOF
388     fi
389     exit 1
390 }
391
392 # Avoid locale weirdness, besides we really just want to translate ASCII.
393 toupper(){
394     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
395 }
396
397 tolower(){
398     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
399 }
400
401 c_escape(){
402     echo "$*" | sed 's/["\\]/\\\0/g'
403 }
404
405 sh_quote(){
406     v=$(echo "$1" | sed "s/'/'\\\\''/g")
407     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
408     echo "$v"
409 }
410
411 cleanws(){
412     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
413 }
414
415 filter(){
416     pat=$1
417     shift
418     for v; do
419         eval "case $v in $pat) echo $v ;; esac"
420     done
421 }
422
423 filter_out(){
424     pat=$1
425     shift
426     for v; do
427         eval "case $v in $pat) ;; *) echo $v ;; esac"
428     done
429 }
430
431 map(){
432     m=$1
433     shift
434     for v; do eval $m; done
435 }
436
437 add_suffix(){
438     suffix=$1
439     shift
440     for v; do echo ${v}${suffix}; done
441 }
442
443 set_all(){
444     value=$1
445     shift
446     for var in $*; do
447         eval $var=$value
448     done
449 }
450
451 set_weak(){
452     value=$1
453     shift
454     for var; do
455         eval : \${$var:=$value}
456     done
457 }
458
459 sanitize_var_name(){
460     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
461 }
462
463 set_safe(){
464     var=$1
465     shift
466     eval $(sanitize_var_name "$var")='$*'
467 }
468
469 get_safe(){
470     eval echo \$$(sanitize_var_name "$1")
471 }
472
473 pushvar(){
474     for var in $*; do
475         eval level=\${${var}_level:=0}
476         eval ${var}_${level}="\$$var"
477         eval ${var}_level=$(($level+1))
478     done
479 }
480
481 popvar(){
482     for var in $*; do
483         eval level=\${${var}_level:-0}
484         test $level = 0 && continue
485         eval level=$(($level-1))
486         eval $var="\${${var}_${level}}"
487         eval ${var}_level=$level
488         eval unset ${var}_${level}
489     done
490 }
491
492 enable(){
493     set_all yes $*
494 }
495
496 disable(){
497     set_all no $*
498 }
499
500 enable_weak(){
501     set_weak yes $*
502 }
503
504 disable_weak(){
505     set_weak no $*
506 }
507
508 enable_safe(){
509     for var; do
510         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511     done
512 }
513
514 disable_safe(){
515     for var; do
516         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517     done
518 }
519
520 do_enable_deep(){
521     for var; do
522         enabled $var && continue
523         eval sel="\$${var}_select"
524         eval sgs="\$${var}_suggest"
525         pushvar var sgs
526         enable_deep $sel
527         popvar sgs
528         enable_deep_weak $sgs
529         popvar var
530     done
531 }
532
533 enable_deep(){
534     do_enable_deep $*
535     enable $*
536 }
537
538 enable_deep_weak(){
539     do_enable_deep $*
540     enable_weak $*
541 }
542
543 enabled(){
544     test "${1#!}" = "$1" && op== || op=!=
545     eval test "x\$${1#!}" $op "xyes"
546 }
547
548 disabled(){
549     test "${1#!}" = "$1" && op== || op=!=
550     eval test "x\$${1#!}" $op "xno"
551 }
552
553 enabled_all(){
554     for opt; do
555         enabled $opt || return 1
556     done
557 }
558
559 disabled_all(){
560     for opt; do
561         disabled $opt || return 1
562     done
563 }
564
565 enabled_any(){
566     for opt; do
567         enabled $opt && return 0
568     done
569 }
570
571 disabled_any(){
572     for opt; do
573         disabled $opt && return 0
574     done
575     return 1
576 }
577
578 set_default(){
579     for opt; do
580         eval : \${$opt:=\$${opt}_default}
581     done
582 }
583
584 is_in(){
585     value=$1
586     shift
587     for var in $*; do
588         [ $var = $value ] && return 0
589     done
590     return 1
591 }
592
593 do_check_deps(){
594     for cfg; do
595         cfg="${cfg#!}"
596         enabled ${cfg}_checking && die "Circular dependency for $cfg."
597         disabled ${cfg}_checking && continue
598         enable ${cfg}_checking
599         append allopts $cfg
600
601         eval dep_all="\$${cfg}_deps"
602         eval dep_any="\$${cfg}_deps_any"
603         eval dep_sel="\$${cfg}_select"
604         eval dep_sgs="\$${cfg}_suggest"
605         eval dep_ifa="\$${cfg}_if"
606         eval dep_ifn="\$${cfg}_if_any"
607
608         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
609         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
610         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
611
612         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
613         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
614         enabled_all  $dep_all || disable $cfg
615         enabled_any  $dep_any || disable $cfg
616         disabled_any $dep_sel && disable $cfg
617
618         if enabled $cfg; then
619             enable_deep $dep_sel
620             enable_deep_weak $dep_sgs
621         fi
622
623         disable ${cfg}_checking
624     done
625 }
626
627 check_deps(){
628     unset allopts
629
630     do_check_deps "$@"
631
632     for cfg in $allopts; do
633         enabled $cfg || continue
634         eval dep_extralibs="\$${cfg}_extralibs"
635         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
636     done
637 }
638
639 print_config(){
640     pfx=$1
641     files=$2
642     shift 2
643     map 'eval echo "$v \${$v:-no}"' "$@" |
644     awk "BEGIN { split(\"$files\", files) }
645         {
646             c = \"$pfx\" toupper(\$1);
647             v = \$2;
648             sub(/yes/, 1, v);
649             sub(/no/,  0, v);
650             for (f in files) {
651                 file = files[f];
652                 if (file ~ /\\.h\$/) {
653                     printf(\"#define %s %d\\n\", c, v) >>file;
654                 } else if (file ~ /\\.asm\$/) {
655                     printf(\"%%define %s %d\\n\", c, v) >>file;
656                 } else if (file ~ /\\.mak\$/) {
657                     n = -v ? \"\" : \"!\";
658                     printf(\"%s%s=yes\\n\", n, c) >>file;
659                 }
660             }
661         }"
662 }
663
664 print_enabled(){
665     suf=$1
666     shift
667     for v; do
668         enabled $v && printf "%s\n" ${v%$suf};
669     done
670 }
671
672 append(){
673     var=$1
674     shift
675     eval "$var=\"\$$var $*\""
676 }
677
678 prepend(){
679     var=$1
680     shift
681     eval "$var=\"$* \$$var\""
682 }
683
684 add_cppflags(){
685     append CPPFLAGS "$@"
686 }
687
688 add_cflags(){
689     append CFLAGS $($cflags_filter "$@")
690 }
691
692 add_cxxflags(){
693     append CXXFLAGS $($cflags_filter "$@")
694 }
695
696 add_asflags(){
697     append ASFLAGS $($asflags_filter "$@")
698 }
699
700 add_ldflags(){
701     append LDFLAGS $($ldflags_filter "$@")
702 }
703
704 add_extralibs(){
705     prepend extralibs $($ldflags_filter "$@")
706 }
707
708 add_host_cppflags(){
709     append host_cppflags "$@"
710 }
711
712 add_host_cflags(){
713     append host_cflags $($host_cflags_filter "$@")
714 }
715
716 add_host_ldflags(){
717     append host_ldflags $($host_ldflags_filter "$@")
718 }
719
720 add_compat(){
721     append compat_objs $1
722     shift
723     map 'add_cppflags -D$v' "$@"
724 }
725
726 check_cmd(){
727     log "$@"
728     "$@" >> $logfile 2>&1
729 }
730
731 cc_o(){
732     eval printf '%s\\n' $CC_O
733 }
734
735 cc_e(){
736     eval printf '%s\\n' $CC_E
737 }
738
739 check_cc(){
740     log check_cc "$@"
741     cat > $TMPC
742     log_file $TMPC
743     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
744 }
745
746 check_cxx(){
747     log check_cxx "$@"
748     cat > $TMPCPP
749     log_file $TMPCPP
750     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
751 }
752
753 check_cpp(){
754     log check_cpp "$@"
755     cat > $TMPC
756     log_file $TMPC
757     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
758 }
759
760 as_o(){
761     eval printf '%s\\n' $AS_O
762 }
763
764 check_as(){
765     log check_as "$@"
766     cat > $TMPS
767     log_file $TMPS
768     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
769 }
770
771 check_inline_asm(){
772     log check_inline_asm "$@"
773     name="$1"
774     code="$2"
775     shift 2
776     disable $name
777     check_cc "$@" <<EOF && enable $name
778 void foo(void){ __asm__ volatile($code); }
779 EOF
780 }
781
782 check_insn(){
783     log check_insn "$@"
784     check_inline_asm ${1}_inline "\"$2\""
785     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
786 }
787
788 check_yasm(){
789     log check_yasm "$@"
790     echo "$1" > $TMPS
791     log_file $TMPS
792     shift 1
793     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
794 }
795
796 ld_o(){
797     eval printf '%s\\n' $LD_O
798 }
799
800 check_ld(){
801     log check_ld "$@"
802     type=$1
803     shift 1
804     flags=$(filter_out '-l*|*.so' $@)
805     libs=$(filter '-l*|*.so' $@)
806     check_$type $($cflags_filter $flags) || return
807     flags=$($ldflags_filter $flags)
808     libs=$($ldflags_filter $libs)
809     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
810 }
811
812 check_code(){
813     log check_code "$@"
814     check=$1
815     headers=$2
816     code=$3
817     shift 3
818     {
819         for hdr in $headers; do
820             echo "#include <$hdr>"
821         done
822         echo "int main(void) { $code; return 0; }"
823     } | check_$check "$@"
824 }
825
826 check_cppflags(){
827     log check_cppflags "$@"
828     check_cc "$@" <<EOF && append CPPFLAGS "$@"
829 int x;
830 EOF
831 }
832
833 check_cflags(){
834     log check_cflags "$@"
835     set -- $($cflags_filter "$@")
836     check_cc "$@" <<EOF && append CFLAGS "$@"
837 int x;
838 EOF
839 }
840
841 check_cxxflags(){
842     log check_cxxflags "$@"
843     set -- $($cflags_filter "$@")
844     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
845 int x;
846 EOF
847 }
848
849 test_ldflags(){
850     log test_ldflags "$@"
851     check_ld "cc" "$@" <<EOF
852 int main(void){ return 0; }
853 EOF
854 }
855
856 check_ldflags(){
857     log check_ldflags "$@"
858     test_ldflags "$@" && add_ldflags "$@"
859 }
860
861 check_header(){
862     log check_header "$@"
863     header=$1
864     shift
865     disable_safe $header
866     check_cpp "$@" <<EOF && enable_safe $header
867 #include <$header>
868 int x;
869 EOF
870 }
871
872 check_func(){
873     log check_func "$@"
874     func=$1
875     shift
876     disable $func
877     check_ld "cc" "$@" <<EOF && enable $func
878 extern int $func();
879 int main(void){ $func(); }
880 EOF
881 }
882
883 check_mathfunc(){
884     log check_mathfunc "$@"
885     func=$1
886     narg=$2
887     shift 2
888     test $narg = 2 && args="f, g" || args="f"
889     disable $func
890     check_ld "cc" "$@" <<EOF && enable $func
891 #include <math.h>
892 float foo(float f, float g) { return $func($args); }
893 int main(void){ return (int) foo; }
894 EOF
895 }
896
897 check_func_headers(){
898     log check_func_headers "$@"
899     headers=$1
900     funcs=$2
901     shift 2
902     {
903         for hdr in $headers; do
904             echo "#include <$hdr>"
905         done
906         for func in $funcs; do
907             echo "long check_$func(void) { return (long) $func; }"
908         done
909         echo "int main(void) { return 0; }"
910     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
911 }
912
913 check_class_headers_cpp(){
914     log check_class_headers_cpp "$@"
915     headers=$1
916     classes=$2
917     shift 2
918     {
919         for hdr in $headers; do
920             echo "#include <$hdr>"
921         done
922         echo "int main(void) { "
923         i=1
924         for class in $classes; do
925             echo "$class obj$i;"
926             i=$(expr $i + 1)
927         done
928         echo "return 0; }"
929     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
930 }
931
932 check_cpp_condition(){
933     log check_cpp_condition "$@"
934     header=$1
935     condition=$2
936     shift 2
937     check_cpp "$@" <<EOF
938 #include <$header>
939 #if !($condition)
940 #error "unsatisfied condition: $condition"
941 #endif
942 EOF
943 }
944
945 check_lib(){
946     log check_lib "$@"
947     header="$1"
948     func="$2"
949     shift 2
950     check_header $header && check_func $func "$@" && add_extralibs "$@"
951 }
952
953 check_lib2(){
954     log check_lib2 "$@"
955     headers="$1"
956     funcs="$2"
957     shift 2
958     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
959 }
960
961 check_lib_cpp(){
962     log check_lib_cpp "$@"
963     headers="$1"
964     classes="$2"
965     shift 2
966     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
967 }
968
969 check_pkg_config(){
970     log check_pkg_config "$@"
971     pkg="$1"
972     headers="$2"
973     funcs="$3"
974     shift 3
975     $pkg_config --exists $pkg 2>/dev/null || return
976     pkg_cflags=$($pkg_config --cflags $pkg)
977     pkg_libs=$($pkg_config --libs $pkg)
978     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
979         set_safe ${pkg}_cflags $pkg_cflags   &&
980         set_safe ${pkg}_libs   $pkg_libs
981 }
982
983 check_exec(){
984     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
985 }
986
987 check_exec_crash(){
988     code=$(cat)
989
990     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
991     # are safe but may not be available everywhere.  Thus we use
992     # raise(SIGTERM) instead.  The check is run in a subshell so we
993     # can redirect the "Terminated" message from the shell.  SIGBUS
994     # is not defined by standard C so it is used conditionally.
995
996     (check_exec "$@") >> $logfile 2>&1 <<EOF
997 #include <signal.h>
998 static void sighandler(int sig){
999     raise(SIGTERM);
1000 }
1001 int func(void){
1002     $code
1003 }
1004 int (*func_ptr)(void) = func;
1005 int main(void){
1006     signal(SIGILL, sighandler);
1007     signal(SIGFPE, sighandler);
1008     signal(SIGSEGV, sighandler);
1009 #ifdef SIGBUS
1010     signal(SIGBUS, sighandler);
1011 #endif
1012     return func_ptr();
1013 }
1014 EOF
1015 }
1016
1017 check_type(){
1018     log check_type "$@"
1019     headers=$1
1020     type=$2
1021     shift 2
1022     disable_safe "$type"
1023     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1024 }
1025
1026 check_struct(){
1027     log check_struct "$@"
1028     headers=$1
1029     struct=$2
1030     member=$3
1031     shift 3
1032     disable_safe "${struct}_${member}"
1033     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1034         enable_safe "${struct}_${member}"
1035 }
1036
1037 check_builtin(){
1038     log check_builtin "$@"
1039     name=$1
1040     headers=$2
1041     builtin=$3
1042     shift 3
1043     disable "$name"
1044     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1045 }
1046
1047 require(){
1048     name="$1"
1049     header="$2"
1050     func="$3"
1051     shift 3
1052     check_lib $header $func "$@" || die "ERROR: $name not found"
1053 }
1054
1055 require2(){
1056     name="$1"
1057     headers="$2"
1058     func="$3"
1059     shift 3
1060     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1061 }
1062
1063 require_cpp(){
1064     name="$1"
1065     headers="$2"
1066     classes="$3"
1067     shift 3
1068     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1069 }
1070
1071 require_pkg_config(){
1072     pkg="$1"
1073     check_pkg_config "$@" || die "ERROR: $pkg not found"
1074     add_cflags    $(get_safe ${pkg}_cflags)
1075     add_extralibs $(get_safe ${pkg}_libs)
1076 }
1077
1078 hostcc_o(){
1079     eval printf '%s\\n' $HOSTCC_O
1080 }
1081
1082 check_host_cc(){
1083     log check_host_cc "$@"
1084     cat > $TMPC
1085     log_file $TMPC
1086     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1087 }
1088
1089 check_host_cppflags(){
1090     log check_host_cppflags "$@"
1091     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1092 int x;
1093 EOF
1094 }
1095
1096 check_host_cflags(){
1097     log check_host_cflags "$@"
1098     set -- $($host_cflags_filter "$@")
1099     check_host_cc "$@" <<EOF && append host_cflags "$@"
1100 int x;
1101 EOF
1102 }
1103
1104 apply(){
1105     file=$1
1106     shift
1107     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1108 }
1109
1110 cp_if_changed(){
1111     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1112     mkdir -p "$(dirname $2)"
1113     $cp_f "$1" "$2"
1114 }
1115
1116 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1117 # system-dependent things.
1118
1119 COMPONENT_LIST="
1120     bsfs
1121     decoders
1122     demuxers
1123     encoders
1124     filters
1125     hwaccels
1126     indevs
1127     muxers
1128     outdevs
1129     parsers
1130     protocols
1131 "
1132
1133 EXTERNAL_LIBRARY_LIST="
1134     avisynth
1135     bzlib
1136     crystalhd
1137     fontconfig
1138     frei0r
1139     gnutls
1140     iconv
1141     libaacplus
1142     libass
1143     libbluray
1144     libcaca
1145     libcdio
1146     libcelt
1147     libdc1394
1148     libfaac
1149     libfdk_aac
1150     libflite
1151     libfreetype
1152     libgsm
1153     libiec61883
1154     libilbc
1155     libmodplug
1156     libmp3lame
1157     libnut
1158     libopencore_amrnb
1159     libopencore_amrwb
1160     libopencv
1161     libopenjpeg
1162     libopus
1163     libpulse
1164     librtmp
1165     libschroedinger
1166     libsoxr
1167     libspeex
1168     libstagefright_h264
1169     libtheora
1170     libtwolame
1171     libutvideo
1172     libv4l2
1173     libvo_aacenc
1174     libvo_amrwbenc
1175     libvorbis
1176     libvpx
1177     libx264
1178     libxavs
1179     libxvid
1180     openal
1181     openssl
1182     x11grab
1183     zlib
1184 "
1185
1186 DOCUMENT_LIST="
1187     doc
1188     htmlpages
1189     manpages
1190     podpages
1191     txtpages
1192 "
1193
1194 HWACCEL_LIST="
1195     dxva2
1196     vaapi
1197     vda
1198     vdpau
1199 "
1200
1201 LIBRARY_LIST="
1202     avcodec
1203     avdevice
1204     avfilter
1205     avformat
1206     avresample
1207     avutil
1208     postproc
1209     swresample
1210     swscale
1211 "
1212
1213 PROGRAM_LIST="
1214     ffplay
1215     ffprobe
1216     ffserver
1217     ffmpeg
1218 "
1219
1220 CONFIG_LIST="
1221     $COMPONENT_LIST
1222     $DOCUMENT_LIST
1223     $EXTERNAL_LIBRARY_LIST
1224     $HWACCEL_LIST
1225     $LIBRARY_LIST
1226     $PROGRAM_LIST
1227     dct
1228     dwt
1229     fast_unaligned
1230     fft
1231     ftrapv
1232     gpl
1233     gray
1234     hardcoded_tables
1235     incompatible_fork_abi
1236     lsp
1237     lzo
1238     mdct
1239     memalign_hack
1240     memory_poisoning
1241     network
1242     nonfree
1243     pic
1244     rdft
1245     runtime_cpudetect
1246     safe_bitstream_reader
1247     shared
1248     small
1249     sram
1250     static
1251     swscale_alpha
1252     thumb
1253     version3
1254     xmm_clobber_test
1255 "
1256
1257 THREADS_LIST='
1258     pthreads
1259     w32threads
1260     os2threads
1261 '
1262
1263 ARCH_LIST='
1264     aarch64
1265     alpha
1266     arm
1267     avr32
1268     avr32_ap
1269     avr32_uc
1270     bfin
1271     ia64
1272     m68k
1273     mips
1274     mips64
1275     parisc
1276     ppc
1277     ppc64
1278     s390
1279     sh4
1280     sparc
1281     sparc64
1282     tilegx
1283     tilepro
1284     tomi
1285     x86
1286     x86_32
1287     x86_64
1288 '
1289
1290 ARCH_EXT_LIST_ARM='
1291     armv5te
1292     armv6
1293     armv6t2
1294     neon
1295     vfp
1296     vfpv3
1297 '
1298
1299 ARCH_EXT_LIST_X86='
1300     amd3dnow
1301     amd3dnowext
1302     avx
1303     fma4
1304     mmx
1305     mmxext
1306     sse
1307     sse2
1308     sse3
1309     sse4
1310     sse42
1311     ssse3
1312 '
1313
1314 ARCH_EXT_LIST="
1315     $ARCH_EXT_LIST_ARM
1316     $ARCH_EXT_LIST_X86
1317     altivec
1318     ppc4xx
1319     vis
1320     mipsfpu
1321     mips32r2
1322     mipsdspr1
1323     mipsdspr2
1324 "
1325
1326 HAVE_LIST_CMDLINE='
1327     inline_asm
1328     symver
1329     yasm
1330 '
1331
1332 HAVE_LIST_PUB='
1333     bigendian
1334     fast_unaligned
1335     incompatible_fork_abi
1336 '
1337
1338 MATH_FUNCS="
1339     atanf
1340     atan2f
1341     cbrt
1342     cbrtf
1343     cosf
1344     exp2
1345     exp2f
1346     expf
1347     isinf
1348     isnan
1349     ldexpf
1350     llrint
1351     llrintf
1352     log2
1353     log2f
1354     log10f
1355     lrint
1356     lrintf
1357     powf
1358     rint
1359     round
1360     roundf
1361     sinf
1362     trunc
1363     truncf
1364 "
1365
1366 HAVE_LIST="
1367     $ARCH_EXT_LIST
1368     $(add_suffix _external $ARCH_EXT_LIST)
1369     $(add_suffix _inline   $ARCH_EXT_LIST)
1370     $HAVE_LIST_CMDLINE
1371     $HAVE_LIST_PUB
1372     $THREADS_LIST
1373     $MATH_FUNCS
1374     access
1375     aligned_malloc
1376     aligned_stack
1377     alsa_asoundlib_h
1378     altivec_h
1379     arpa_inet_h
1380     asm_mod_q
1381     asm_mod_y
1382     asm_types_h
1383     attribute_may_alias
1384     attribute_packed
1385     cdio_paranoia_h
1386     cdio_paranoia_paranoia_h
1387     clock_gettime
1388     closesocket
1389     cmov
1390     CommandLineToArgvW
1391     cpunop
1392     CryptGenRandom
1393     dcbzl
1394     dev_bktr_ioctl_bt848_h
1395     dev_bktr_ioctl_meteor_h
1396     dev_ic_bt8xx_h
1397     dev_video_bktr_ioctl_bt848_h
1398     dev_video_meteor_ioctl_meteor_h
1399     direct_h
1400     dlfcn_h
1401     dlopen
1402     dos_paths
1403     dxva_h
1404     ebp_available
1405     ebx_available
1406     fast_64bit
1407     fast_clz
1408     fast_cmov
1409     fcntl
1410     fork
1411     getaddrinfo
1412     gethrtime
1413     getopt
1414     GetProcessAffinityMask
1415     GetProcessMemoryInfo
1416     GetProcessTimes
1417     GetSystemTimeAsFileTime
1418     getrusage
1419     getservbyport
1420     gettimeofday
1421     glob
1422     gnu_as
1423     gsm_h
1424     ibm_asm
1425     inet_aton
1426     io_h
1427     isatty
1428     jack_port_get_latency_range
1429     kbhit
1430     ldbrx
1431     libdc1394_1
1432     libdc1394_2
1433     local_aligned_16
1434     local_aligned_8
1435     localtime_r
1436     loongson
1437     lzo1x_999_compress
1438     machine_ioctl_bt848_h
1439     machine_ioctl_meteor_h
1440     machine_rw_barrier
1441     makeinfo
1442     malloc_h
1443     MapViewOfFile
1444     memalign
1445     MemoryBarrier
1446     mkstemp
1447     mm_empty
1448     mmap
1449     mprotect
1450     msvcrt
1451     nanosleep
1452     openjpeg_1_5_openjpeg_h
1453     PeekNamedPipe
1454     perl
1455     pod2man
1456     poll_h
1457     posix_memalign
1458     pthread_cancel
1459     rdtsc
1460     rsync_contimeout
1461     sched_getaffinity
1462     sdl
1463     SetConsoleTextAttribute
1464     setmode
1465     setrlimit
1466     Sleep
1467     sndio_h
1468     socklen_t
1469     soundcard_h
1470     strerror_r
1471     struct_addrinfo
1472     struct_group_source_req
1473     struct_ip_mreq_source
1474     struct_ipv6_mreq
1475     struct_pollfd
1476     struct_rusage_ru_maxrss
1477     struct_sctp_event_subscribe
1478     struct_sockaddr_in6
1479     struct_sockaddr_sa_len
1480     struct_sockaddr_storage
1481     struct_v4l2_frmivalenum_discrete
1482     symver_asm_label
1483     symver_gnu_asm
1484     sync_val_compare_and_swap
1485     sysconf
1486     sysctl
1487     sys_mman_h
1488     sys_param_h
1489     sys_resource_h
1490     sys_select_h
1491     sys_soundcard_h
1492     sys_time_h
1493     sys_videoio_h
1494     termios_h
1495     texi2html
1496     threads
1497     unistd_h
1498     usleep
1499     vfp_args
1500     VirtualAlloc
1501     windows_h
1502     winsock2_h
1503     xform_asm
1504     xmm_clobbers
1505 "
1506
1507 # options emitted with CONFIG_ prefix but not available on the command line
1508 CONFIG_EXTRA="
1509     aandcttables
1510     ac3dsp
1511     audio_frame_queue
1512     dsputil
1513     error_resilience
1514     gcrypt
1515     golomb
1516     gplv3
1517     h264chroma
1518     h264dsp
1519     h264pred
1520     h264qpel
1521     hpeldsp
1522     huffman
1523     lgplv3
1524     lpc
1525     mpegaudio
1526     mpegaudiodsp
1527     mpegvideo
1528     mpegvideoenc
1529     nettle
1530     rangecoder
1531     rtpdec
1532     rtpenc_chain
1533     sinewin
1534     videodsp
1535     vp3dsp
1536 "
1537
1538 CMDLINE_SELECT="
1539     $ARCH_EXT_LIST
1540     $CONFIG_LIST
1541     $HAVE_LIST_CMDLINE
1542     $THREADS_LIST
1543     asm
1544     coverage
1545     cross_compile
1546     debug
1547     extra_warnings
1548     logging
1549     lto
1550     optimizations
1551     stripping
1552 "
1553
1554 PATHS_LIST='
1555     bindir
1556     datadir
1557     incdir
1558     libdir
1559     mandir
1560     prefix
1561     shlibdir
1562 '
1563
1564 CMDLINE_SET="
1565     $PATHS_LIST
1566     ar
1567     arch
1568     as
1569     assert_level
1570     build_suffix
1571     cc
1572     cpu
1573     cross_prefix
1574     cxx
1575     dep_cc
1576     extra_version
1577     host_cc
1578     host_cflags
1579     host_ld
1580     host_ldflags
1581     host_libs
1582     host_os
1583     install
1584     ld
1585     logfile
1586     malloc_prefix
1587     nm
1588     optflags
1589     pkg_config
1590     progs_suffix
1591     random_seed
1592     samples
1593     strip
1594     sysinclude
1595     sysroot
1596     target_exec
1597     target_os
1598     target_path
1599     toolchain
1600     valgrind
1601     yasmexe
1602 "
1603
1604 CMDLINE_APPEND="
1605     extra_cflags
1606     extra_cxxflags
1607     host_cppflags
1608 "
1609
1610 # code dependency declarations
1611
1612 # architecture extensions
1613
1614 armv5te_deps="arm"
1615 armv6_deps="arm"
1616 armv6t2_deps="arm"
1617 neon_deps="arm"
1618 vfp_deps="arm"
1619 vfpv3_deps="vfp"
1620
1621 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1622
1623 mipsfpu_deps="mips"
1624 mips32r2_deps="mips"
1625 mipsdspr1_deps="mips"
1626 mipsdspr2_deps="mips"
1627
1628 altivec_deps="ppc"
1629 ppc4xx_deps="ppc"
1630
1631 vis_deps="sparc"
1632
1633 x86_64_suggest="cmov fast_cmov"
1634
1635 amd3dnow_deps="mmx"
1636 amd3dnowext_deps="amd3dnow"
1637 mmx_deps="x86"
1638 mmxext_deps="mmx"
1639 sse_deps="mmxext"
1640 sse2_deps="sse"
1641 sse3_deps="sse2"
1642 ssse3_deps="sse3"
1643 sse4_deps="ssse3"
1644 sse42_deps="sse4"
1645 avx_deps="sse42"
1646 fma4_deps="avx"
1647
1648 mmx_external_deps="yasm"
1649 mmx_inline_deps="inline_asm"
1650 mmx_suggest="mmx_external mmx_inline"
1651
1652 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1653     eval dep=\$${ext}_deps
1654     eval ${ext}_external_deps='"${dep}_external"'
1655     eval ${ext}_inline_deps='"${dep}_inline"'
1656     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1657 done
1658
1659 aligned_stack_if_any="ppc x86"
1660 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1661 fast_clz_if_any="alpha avr32 mips ppc x86"
1662 fast_unaligned_if_any="ppc x86"
1663
1664 inline_asm_deps="!tms470"
1665 need_memalign="altivec neon sse"
1666
1667 symver_if_any="symver_asm_label symver_gnu_asm"
1668
1669 log2_deps="!msvcrt"
1670
1671 # subsystems
1672 dct_select="rdft"
1673 error_resilience_select="dsputil"
1674 mdct_select="fft"
1675 rdft_select="fft"
1676 mpegaudio_select="mpegaudiodsp"
1677 mpegaudiodsp_select="dct"
1678 mpegvideo_select="dsputil error_resilience videodsp h264chroma"
1679 mpegvideoenc_select="mpegvideo"
1680
1681 # decoders / encoders
1682 aac_decoder_select="mdct sinewin"
1683 aac_encoder_select="audio_frame_queue mdct sinewin"
1684 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1685 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1686 ac3_encoder_select="mdct ac3dsp dsputil"
1687 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1688 alac_encoder_select="lpc"
1689 als_decoder_select="dsputil"
1690 amrnb_decoder_select="lsp"
1691 amrwb_decoder_select="lsp"
1692 amv_encoder_select="aandcttables"
1693 ape_decoder_select="dsputil"
1694 asv_decoder_select="dsputil"
1695 atrac1_decoder_select="mdct sinewin"
1696 atrac3_decoder_select="mdct"
1697 bink_decoder_select="dsputil hpeldsp"
1698 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1699 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1700 cavs_decoder_select="dsputil golomb h264chroma mpegvideo videodsp"
1701 cllc_decoder_select="dsputil"
1702 comfortnoise_encoder_select="lpc"
1703 cook_decoder_select="dsputil mdct sinewin"
1704 cscd_decoder_select="lzo"
1705 cscd_decoder_suggest="zlib"
1706 dca_decoder_select="mdct"
1707 dirac_decoder_select="dsputil dwt golomb videodsp"
1708 dnxhd_decoder_select="dsputil"
1709 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1710 dv_decoder_select="dsputil"
1711 dxa_decoder_select="zlib"
1712 eac3_decoder_select="ac3_decoder"
1713 eac3_encoder_select="ac3_encoder"
1714 eamad_decoder_select="aandcttables dsputil mpegvideo"
1715 eatgq_decoder_select="aandcttables"
1716 eatqi_decoder_select="aandcttables mpegvideo"
1717 exr_decoder_select="zlib"
1718 ffv1_decoder_select="dsputil golomb rangecoder"
1719 ffv1_encoder_select="rangecoder"
1720 ffvhuff_encoder_select="huffman"
1721 flac_decoder_select="golomb"
1722 flac_encoder_select="dsputil golomb lpc"
1723 flashsv_decoder_select="zlib"
1724 flashsv_encoder_select="zlib"
1725 flashsv2_encoder_select="zlib"
1726 flashsv2_decoder_select="zlib"
1727 flv_decoder_select="h263_decoder"
1728 flv_encoder_select="h263_encoder"
1729 fourxm_decoder_select="dsputil"
1730 fraps_decoder_select="dsputil huffman"
1731 g729_decoder_select="dsputil"
1732 h261_decoder_select="error_resilience mpegvideo"
1733 h261_encoder_select="aandcttables mpegvideoenc"
1734 h263_decoder_select="error_resilience h263_parser mpegvideo"
1735 h263_encoder_select="aandcttables mpegvideoenc"
1736 h263i_decoder_select="h263_decoder"
1737 h263p_encoder_select="h263_encoder"
1738 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1739 huffyuv_decoder_select="dsputil"
1740 huffyuv_encoder_select="huffman"
1741 iac_decoder_select="fft mdct sinewin"
1742 imc_decoder_select="dsputil fft mdct sinewin"
1743 indeo3_decoder_select="hpeldsp"
1744 interplay_video_decoder_select="hpeldsp"
1745 jpegls_decoder_select="golomb"
1746 jpegls_encoder_select="golomb"
1747 jv_decoder_select="dsputil"
1748 lagarith_decoder_select="dsputil"
1749 ljpeg_encoder_select="aandcttables mpegvideoenc"
1750 loco_decoder_select="golomb"
1751 mdec_decoder_select="dsputil error_resilience mpegvideo"
1752 mimic_decoder_select="dsputil"
1753 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1754 mlp_decoder_select="dsputil mlp_parser"
1755 motionpixels_decoder_select="dsputil"
1756 mp1_decoder_select="mpegaudio"
1757 mp1float_decoder_select="mpegaudio"
1758 mp2_decoder_select="mpegaudio"
1759 mp2float_decoder_select="mpegaudio"
1760 mp3_decoder_select="mpegaudio"
1761 mp3adu_decoder_select="mpegaudio"
1762 mp3adufloat_decoder_select="mpegaudio"
1763 mp3float_decoder_select="mpegaudio"
1764 mp3on4_decoder_select="mpegaudio"
1765 mp3on4float_decoder_select="mpegaudio"
1766 mpc7_decoder_select="dsputil mpegaudiodsp"
1767 mpc8_decoder_select="dsputil mpegaudiodsp"
1768 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1769 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1770 mpeg1video_decoder_select="error_resilience mpegvideo"
1771 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1772 mpeg2video_decoder_select="error_resilience mpegvideo"
1773 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1774 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1775 mpeg4_encoder_select="h263_encoder"
1776 msmpeg4v1_decoder_select="h263_decoder"
1777 msmpeg4v1_encoder_select="h263_encoder"
1778 msmpeg4v2_decoder_select="h263_decoder"
1779 msmpeg4v2_encoder_select="h263_encoder"
1780 msmpeg4v3_decoder_select="h263_decoder"
1781 msmpeg4v3_encoder_select="h263_encoder"
1782 mss2_decoder_select="error_resilience vc1_decoder"
1783 nellymoser_decoder_select="mdct sinewin"
1784 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1785 nuv_decoder_select="dsputil lzo"
1786 png_decoder_select="zlib"
1787 png_encoder_select="dsputil zlib"
1788 prores_decoder_select="dsputil"
1789 qcelp_decoder_select="lsp"
1790 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1791 ra_144_encoder_select="audio_frame_queue lpc"
1792 ralf_decoder_select="golomb"
1793 rtjpeg_decoder_select="dsputil"
1794 rv10_decoder_select="error_resilience h263_decoder"
1795 rv10_encoder_select="h263_encoder"
1796 rv20_decoder_select="error_resilience h263_decoder"
1797 rv20_encoder_select="h263_encoder"
1798 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1799 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1800 shorten_decoder_select="golomb"
1801 sipr_decoder_select="lsp"
1802 snow_decoder_select="dsputil dwt h264qpel rangecoder"
1803 snow_encoder_select="aandcttables dsputil dwt h264qpel error_resilience mpegvideoenc rangecoder"
1804 sonic_decoder_select="golomb"
1805 sonic_encoder_select="golomb"
1806 sonic_ls_encoder_select="golomb"
1807 svq1_decoder_select="dsputil mpegvideo"
1808 svq1_encoder_select="aandcttables dsputil mpegvideoenc"
1809 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo videodsp"
1810 svq3_decoder_suggest="zlib"
1811 tak_decoder_select="dsputil"
1812 theora_decoder_select="vp3_decoder"
1813 tiff_decoder_suggest="zlib"
1814 tiff_encoder_suggest="zlib"
1815 truehd_decoder_select="mlp_parser"
1816 truemotion2_decoder_select="dsputil"
1817 tscc_decoder_select="zlib"
1818 twinvq_decoder_select="mdct lsp sinewin"
1819 utvideo_decoder_select="dsputil"
1820 utvideo_encoder_select="huffman"
1821 vble_decoder_select="dsputil"
1822 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1823 vc1image_decoder_select="vc1_decoder"
1824 vorbis_decoder_select="mdct"
1825 vorbis_encoder_select="mdct"
1826 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1827 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1828 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1829 vp6a_decoder_select="vp6_decoder"
1830 vp6f_decoder_select="vp6_decoder"
1831 vp8_decoder_select="h264pred videodsp"
1832 wmapro_decoder_select="mdct sinewin"
1833 wmav1_decoder_select="mdct sinewin"
1834 wmav1_encoder_select="mdct sinewin"
1835 wmav2_decoder_select="mdct sinewin"
1836 wmav2_encoder_select="mdct sinewin"
1837 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1838 wmv1_decoder_select="h263_decoder"
1839 wmv1_encoder_select="h263_encoder"
1840 wmv2_decoder_select="h263_decoder videodsp"
1841 wmv2_encoder_select="h263_encoder"
1842 wmv3_decoder_select="vc1_decoder"
1843 wmv3image_decoder_select="wmv3_decoder"
1844 zerocodec_decoder_select="zlib"
1845 zlib_decoder_select="zlib"
1846 zlib_encoder_select="zlib"
1847 zmbv_decoder_select="zlib"
1848 zmbv_encoder_select="zlib"
1849
1850 # hardware accelerators
1851 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1852 dxva2_deps="dxva2api_h"
1853 vaapi_deps="va_va_h"
1854 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1855 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1856 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1857
1858 h263_vaapi_hwaccel_deps="vaapi"
1859 h263_vaapi_hwaccel_select="h263_decoder"
1860 h263_vdpau_hwaccel_deps="vdpau"
1861 h263_vdpau_hwaccel_select="h263_decoder"
1862 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1863 h264_dxva2_hwaccel_deps="dxva2"
1864 h264_dxva2_hwaccel_select="h264_decoder"
1865 h264_vaapi_hwaccel_deps="vaapi"
1866 h264_vaapi_hwaccel_select="h264_decoder"
1867 h264_vda_decoder_deps="vda"
1868 h264_vda_decoder_select="h264_decoder"
1869 h264_vda_hwaccel_deps="vda"
1870 h264_vda_hwaccel_select="h264_decoder"
1871 h264_vdpau_decoder_deps="vdpau"
1872 h264_vdpau_decoder_select="h264_decoder"
1873 h264_vdpau_hwaccel_deps="vdpau"
1874 h264_vdpau_hwaccel_select="h264_decoder"
1875 mpeg_vdpau_decoder_deps="vdpau"
1876 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1877 mpeg1_vdpau_decoder_deps="vdpau"
1878 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1879 mpeg1_vdpau_hwaccel_deps="vdpau"
1880 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1881 mpeg2_crystalhd_decoder_select="crystalhd"
1882 mpeg2_dxva2_hwaccel_deps="dxva2"
1883 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1884 mpeg2_vaapi_hwaccel_deps="vaapi"
1885 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1886 mpeg2_vdpau_hwaccel_deps="vdpau"
1887 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1888 mpeg4_crystalhd_decoder_select="crystalhd"
1889 mpeg4_vaapi_hwaccel_deps="vaapi"
1890 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1891 mpeg4_vdpau_decoder_deps="vdpau"
1892 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1893 mpeg4_vdpau_hwaccel_deps="vdpau"
1894 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1895 msmpeg4_crystalhd_decoder_select="crystalhd"
1896 vc1_crystalhd_decoder_select="crystalhd"
1897 vc1_dxva2_hwaccel_deps="dxva2"
1898 vc1_dxva2_hwaccel_select="vc1_decoder"
1899 vc1_vaapi_hwaccel_deps="vaapi"
1900 vc1_vaapi_hwaccel_select="vc1_decoder"
1901 vc1_vdpau_decoder_deps="vdpau"
1902 vc1_vdpau_decoder_select="vc1_decoder"
1903 vc1_vdpau_hwaccel_deps="vdpau"
1904 vc1_vdpau_hwaccel_select="vc1_decoder"
1905 wmv3_crystalhd_decoder_select="crystalhd"
1906 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1907 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1908 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1909 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1910
1911 # parsers
1912 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1913 mpeg4video_parser_select="error_resilience mpegvideo"
1914 mpegvideo_parser_select="error_resilience mpegvideo"
1915 vc1_parser_select="mpegvideo"
1916
1917 # external libraries
1918 libaacplus_encoder_deps="libaacplus"
1919 libcelt_decoder_deps="libcelt"
1920 libfaac_encoder_deps="libfaac"
1921 libfaac_encoder_select="audio_frame_queue"
1922 libfdk_aac_encoder_deps="libfdk_aac"
1923 libfdk_aac_encoder_select="audio_frame_queue"
1924 libgsm_decoder_deps="libgsm"
1925 libgsm_encoder_deps="libgsm"
1926 libgsm_ms_decoder_deps="libgsm"
1927 libgsm_ms_encoder_deps="libgsm"
1928 libilbc_decoder_deps="libilbc"
1929 libilbc_encoder_deps="libilbc"
1930 libmodplug_demuxer_deps="libmodplug"
1931 libmp3lame_encoder_deps="libmp3lame"
1932 libmp3lame_encoder_select="audio_frame_queue"
1933 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1934 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1935 libopencore_amrnb_encoder_select="audio_frame_queue"
1936 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1937 libopenjpeg_decoder_deps="libopenjpeg"
1938 libopenjpeg_encoder_deps="libopenjpeg"
1939 libopus_decoder_deps="libopus"
1940 libopus_encoder_deps="libopus"
1941 libopus_encoder_select="audio_frame_queue"
1942 libschroedinger_decoder_deps="libschroedinger"
1943 libschroedinger_encoder_deps="libschroedinger"
1944 libspeex_decoder_deps="libspeex"
1945 libspeex_encoder_deps="libspeex"
1946 libspeex_encoder_select="audio_frame_queue"
1947 libstagefright_h264_decoder_deps="libstagefright_h264"
1948 libtheora_encoder_deps="libtheora"
1949 libtwolame_encoder_deps="libtwolame"
1950 libvo_aacenc_encoder_deps="libvo_aacenc"
1951 libvo_aacenc_encoder_select="audio_frame_queue"
1952 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1953 libvorbis_decoder_deps="libvorbis"
1954 libvorbis_encoder_deps="libvorbis"
1955 libvorbis_encoder_select="audio_frame_queue"
1956 libvpx_vp8_decoder_deps="libvpx"
1957 libvpx_vp8_encoder_deps="libvpx"
1958 libvpx_vp9_decoder_deps="libvpx"
1959 libvpx_vp9_encoder_deps="libvpx"
1960 libx264_encoder_deps="libx264"
1961 libx264rgb_encoder_deps="libx264"
1962 libxavs_encoder_deps="libxavs"
1963 libxvid_encoder_deps="libxvid"
1964 libutvideo_decoder_deps="libutvideo"
1965 libutvideo_encoder_deps="libutvideo"
1966
1967 # demuxers / muxers
1968 ac3_demuxer_select="ac3_parser"
1969 asf_stream_muxer_select="asf_muxer"
1970 avisynth_demuxer_deps="avisynth"
1971 dirac_demuxer_select="dirac_parser"
1972 dts_demuxer_select="dca_parser"
1973 dtshd_demuxer_select="dca_parser"
1974 eac3_demuxer_select="ac3_parser"
1975 f4v_muxer_select="mov_muxer"
1976 flac_demuxer_select="flac_parser"
1977 ipod_muxer_select="mov_muxer"
1978 ismv_muxer_select="mov_muxer"
1979 libnut_demuxer_deps="libnut"
1980 libnut_muxer_deps="libnut"
1981 matroska_audio_muxer_select="matroska_muxer"
1982 matroska_demuxer_suggest="bzlib lzo zlib"
1983 mov_demuxer_suggest="zlib"
1984 mov_muxer_select="rtpenc_chain"
1985 mp3_demuxer_select="mpegaudio_parser"
1986 mp4_muxer_select="mov_muxer"
1987 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1988 mpegtsraw_demuxer_select="mpegts_demuxer"
1989 mxf_d10_muxer_select="mxf_muxer"
1990 ogg_demuxer_select="golomb"
1991 psp_muxer_select="mov_muxer"
1992 rtp_demuxer_select="sdp_demuxer"
1993 rtp_muxer_select="mpegvideo"
1994 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1995 rtsp_demuxer_select="http_protocol rtpdec"
1996 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1997 sap_demuxer_select="sdp_demuxer"
1998 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1999 sdp_demuxer_select="rtpdec"
2000 smoothstreaming_muxer_select="ismv_muxer"
2001 spdif_muxer_select="aac_parser"
2002 tak_demuxer_select="tak_parser"
2003 tg2_muxer_select="mov_muxer"
2004 tgp_muxer_select="mov_muxer"
2005 vobsub_demuxer_select="mpegps_demuxer"
2006 w64_demuxer_deps="wav_demuxer"
2007 w64_muxer_deps="wav_muxer"
2008
2009 # indevs / outdevs
2010 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2011 alsa_outdev_deps="alsa_asoundlib_h"
2012 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2013 caca_outdev_deps="libcaca"
2014 dshow_indev_deps="IBaseFilter"
2015 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2016 dv1394_indev_deps="dv1394 dv_demuxer"
2017 fbdev_indev_deps="linux_fb_h"
2018 iec61883_indev_deps="libiec61883"
2019 jack_indev_deps="jack_jack_h sem_timedwait"
2020 lavfi_indev_deps="avfilter"
2021 libcdio_indev_deps="libcdio"
2022 libdc1394_indev_deps="libdc1394"
2023 libv4l2_indev_deps="libv4l2"
2024 openal_indev_deps="openal"
2025 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2026 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2027 pulse_indev_deps="libpulse"
2028 sdl_outdev_deps="sdl"
2029 sndio_indev_deps="sndio_h"
2030 sndio_outdev_deps="sndio_h"
2031 v4l_indev_deps="linux_videodev_h"
2032 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2033 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2034 vfwcap_indev_extralibs="-lavicap32"
2035 x11grab_indev_deps="x11grab"
2036
2037 # protocols
2038 bluray_protocol_deps="libbluray"
2039 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2040 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2041 ffrtmpcrypt_protocol_select="tcp_protocol"
2042 ffrtmphttp_protocol_deps="!librtmp_protocol"
2043 ffrtmphttp_protocol_select="http_protocol"
2044 gopher_protocol_select="network"
2045 httpproxy_protocol_select="tcp_protocol"
2046 http_protocol_select="tcp_protocol"
2047 https_protocol_select="tls_protocol"
2048 librtmp_protocol_deps="librtmp"
2049 librtmpe_protocol_deps="librtmp"
2050 librtmps_protocol_deps="librtmp"
2051 librtmpt_protocol_deps="librtmp"
2052 librtmpte_protocol_deps="librtmp"
2053 mmsh_protocol_select="http_protocol"
2054 mmst_protocol_select="network"
2055 rtmp_protocol_deps="!librtmp_protocol"
2056 rtmp_protocol_select="tcp_protocol"
2057 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2058 rtmps_protocol_deps="!librtmp_protocol"
2059 rtmps_protocol_select="tls_protocol"
2060 rtmpt_protocol_select="ffrtmphttp_protocol"
2061 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2062 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2063 rtp_protocol_select="udp_protocol"
2064 sctp_protocol_deps="struct_sctp_event_subscribe"
2065 sctp_protocol_select="network"
2066 srtp_protocol_select="rtp_protocol"
2067 tcp_protocol_select="network"
2068 tls_protocol_deps_any="openssl gnutls"
2069 tls_protocol_select="tcp_protocol"
2070 udp_protocol_select="network"
2071
2072 # filters
2073 aconvert_filter_deps="swresample"
2074 amovie_filter_deps="avcodec avformat"
2075 aresample_filter_deps="swresample"
2076 ass_filter_deps="libass"
2077 asyncts_filter_deps="avresample"
2078 atempo_filter_deps="avcodec rdft"
2079 blackframe_filter_deps="gpl"
2080 boxblur_filter_deps="gpl"
2081 colormatrix_filter_deps="gpl"
2082 cropdetect_filter_deps="gpl"
2083 decimate_filter_deps="gpl avcodec"
2084 delogo_filter_deps="gpl"
2085 deshake_filter_deps="avcodec"
2086 drawtext_filter_deps="libfreetype"
2087 ebur128_filter_deps="gpl"
2088 flite_filter_deps="libflite"
2089 frei0r_filter_deps="frei0r dlopen"
2090 frei0r_filter_extralibs='$ldl'
2091 frei0r_src_filter_deps="frei0r dlopen"
2092 frei0r_src_filter_extralibs='$ldl'
2093 geq_filter_deps="gpl"
2094 histeq_filter_deps="gpl"
2095 hqdn3d_filter_deps="gpl"
2096 hue_filter_deps="gpl"
2097 kerndeint_filter_deps="gpl"
2098 movie_filter_deps="avcodec avformat"
2099 mp_filter_deps="gpl avcodec swscale inline_asm"
2100 mptestsrc_filter_deps="gpl"
2101 negate_filter_deps="lut_filter"
2102 noise_filter_deps="gpl"
2103 resample_filter_deps="avresample"
2104 ocv_filter_deps="libopencv"
2105 pan_filter_deps="swresample"
2106 pp_filter_deps="gpl postproc"
2107 removelogo_filter_deps="avcodec avformat swscale"
2108 scale_filter_deps="swscale"
2109 smartblur_filter_deps="gpl swscale"
2110 showspectrum_filter_deps="avcodec rdft"
2111 stereo3d_filter_deps="gpl"
2112 subtitles_filter_deps="avformat avcodec libass"
2113 super2xsai_filter_deps="gpl"
2114 tinterlace_filter_deps="gpl"
2115 yadif_filter_deps="gpl"
2116 pixfmts_super2xsai_test_deps="super2xsai_filter"
2117 tinterlace_merge_test_deps="tinterlace_filter"
2118 tinterlace_pad_test_deps="tinterlace_filter"
2119
2120 # libraries
2121 avcodec_deps="avutil"
2122 avdevice_deps="avutil avcodec avformat"
2123 avfilter_deps="avutil"
2124 avformat_deps="avutil avcodec"
2125 avresample_deps="avutil"
2126 postproc_deps="avutil gpl"
2127 swscale_deps="avutil"
2128
2129 # programs
2130 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2131 ffmpeg_select="format_filter aformat_filter
2132                setpts_filter null_filter anull_filter"
2133 ffplay_deps="avcodec avformat swscale swresample sdl"
2134 ffplay_select="rdft crop_filter"
2135 ffprobe_deps="avcodec avformat"
2136 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2137 ffserver_extralibs='$ldl'
2138
2139 # documentation
2140 podpages_deps="perl"
2141 manpages_deps="perl pod2man"
2142 htmlpages_deps="texi2html"
2143 txtpages_deps="makeinfo"
2144 doc_deps_any="manpages htmlpages podpages txtpages"
2145
2146 # default parameters
2147
2148 logfile="config.log"
2149
2150 # installation paths
2151 prefix_default="/usr/local"
2152 bindir_default='${prefix}/bin'
2153 datadir_default='${prefix}/share/ffmpeg'
2154 incdir_default='${prefix}/include'
2155 libdir_default='${prefix}/lib'
2156 mandir_default='${prefix}/share/man'
2157 shlibdir_default="$libdir_default"
2158
2159 # toolchain
2160 ar_default="ar"
2161 cc_default="gcc"
2162 cxx_default="g++"
2163 host_cc_default="gcc"
2164 cp_f="cp -f"
2165 install="install"
2166 ln_s="ln -s -f"
2167 nm_default="nm -g"
2168 objformat="elf"
2169 pkg_config_default=pkg-config
2170 ranlib="ranlib"
2171 strip_default="strip"
2172 yasmexe_default="yasm"
2173
2174 nogas=":"
2175
2176 # machine
2177 arch_default=$(uname -m)
2178 cpu="generic"
2179
2180 # OS
2181 target_os_default=$(tolower $(uname -s))
2182 host_os=$target_os_default
2183
2184 # configurable options
2185 enable $PROGRAM_LIST
2186 enable $DOCUMENT_LIST
2187 enable $(filter_out avresample $LIBRARY_LIST)
2188 enable stripping
2189
2190 enable asm
2191 enable debug
2192 enable doc
2193 enable optimizations
2194 enable runtime_cpudetect
2195 enable safe_bitstream_reader
2196 enable static
2197 enable swscale_alpha
2198
2199 # build settings
2200 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2201 FFSERVERLDFLAGS=-Wl,-E
2202 LIBPREF="lib"
2203 LIBSUF=".a"
2204 FULLNAME='$(NAME)$(BUILDSUF)'
2205 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2206 SLIBPREF="lib"
2207 SLIBSUF=".so"
2208 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2209 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2210 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2211 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2212 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2213 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2214
2215 asflags_filter=echo
2216 cflags_filter=echo
2217 ldflags_filter=echo
2218
2219 AS_C='-c'
2220 AS_O='-o $@'
2221 CC_C='-c'
2222 CC_E='-E -o $@'
2223 CC_O='-o $@'
2224 CXX_C='-c'
2225 CXX_O='-o $@'
2226 LD_O='-o $@'
2227 LD_LIB='-l%'
2228 LD_PATH='-L'
2229 HOSTCC_C='-c'
2230 HOSTCC_O='-o $@'
2231 HOSTLD_O='-o $@'
2232
2233 host_cflags='-O3 -g'
2234 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2235 host_libs='-lm'
2236 host_cflags_filter=echo
2237 host_ldflags_filter=echo
2238
2239 target_path='$(CURDIR)'
2240
2241 # since the object filename is not given with the -MM flag, the compiler
2242 # is only able to print the basename, and we must add the path ourselves
2243 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2244 DEPFLAGS='-MM'
2245
2246 # find source path
2247 if test -f configure; then
2248     source_path=.
2249 else
2250     source_path=$(cd $(dirname "$0"); pwd)
2251     echo "$source_path" | grep -q '[[:blank:]]' &&
2252         die "Out of tree builds are impossible with whitespace in source path."
2253     test -e "$source_path/config.h" &&
2254         die "Out of tree builds are impossible with config.h in source dir."
2255 fi
2256
2257 for v in "$@"; do
2258     r=${v#*=}
2259     l=${v%"$r"}
2260     r=$(sh_quote "$r")
2261     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2262 done
2263
2264 find_things(){
2265     thing=$1
2266     pattern=$2
2267     file=$source_path/$3
2268     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2269 }
2270
2271 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2272 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2273 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2274 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2275 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2276 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2277 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2278 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2279 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2280 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2281 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2282
2283 ALL_COMPONENTS="
2284     $BSF_LIST
2285     $DECODER_LIST
2286     $DEMUXER_LIST
2287     $ENCODER_LIST
2288     $FILTER_LIST
2289     $HWACCEL_LIST
2290     $INDEV_LIST
2291     $MUXER_LIST
2292     $OUTDEV_LIST
2293     $PARSER_LIST
2294     $PROTOCOL_LIST
2295 "
2296
2297 for n in $COMPONENT_LIST; do
2298     v=$(toupper ${n%s})_LIST
2299     eval enable \$$v
2300     eval ${n}_if_any="\$$v"
2301 done
2302
2303 enable $ARCH_EXT_LIST
2304
2305 die_unknown(){
2306     echo "Unknown option \"$1\"."
2307     echo "See $0 --help for available options."
2308     exit 1
2309 }
2310
2311 print_3_columns() {
2312     cat | tr ' ' '\n' | sort | pr -r -3 -t
2313 }
2314
2315 show_list() {
2316     suffix=_$1
2317     shift
2318     echo $* | sed s/$suffix//g | print_3_columns
2319     exit 0
2320 }
2321
2322 rand_list(){
2323     IFS=', '
2324     set -- $*
2325     unset IFS
2326     for thing; do
2327         comp=${thing%:*}
2328         prob=${thing#$comp}
2329         prob=${prob#:}
2330         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2331         echo "prob ${prob:-0.5}"
2332         printf '%s\n' $comp
2333     done
2334 }
2335
2336 do_random(){
2337     action=$1
2338     shift
2339     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2340     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2341 }
2342
2343 for opt do
2344     optval="${opt#*=}"
2345     case "$opt" in
2346         --extra-ldflags=*)
2347             add_ldflags $optval
2348         ;;
2349         --extra-libs=*)
2350             add_extralibs $optval
2351         ;;
2352         --disable-devices)
2353             disable $INDEV_LIST $OUTDEV_LIST
2354         ;;
2355         --enable-debug=*)
2356             debuglevel="$optval"
2357         ;;
2358         --disable-programs)
2359             disable $PROGRAM_LIST
2360         ;;
2361         --disable-everything)
2362             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2363         ;;
2364         --disable-all)
2365             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2366             disable $LIBRARY_LIST $PROGRAM_LIST doc
2367         ;;
2368         --enable-random|--disable-random)
2369             action=${opt%%-random}
2370             do_random ${action#--} $COMPONENT_LIST
2371         ;;
2372         --enable-random=*|--disable-random=*)
2373             action=${opt%%-random=*}
2374             do_random ${action#--} $optval
2375         ;;
2376         --enable-*=*|--disable-*=*)
2377             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2378             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2379             eval list=\$$(toupper $thing)_LIST
2380             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2381             list=$(filter "$name" $list)
2382             [ "$list" = "" ] && warn "Option $opt did not match anything"
2383             $action $list
2384         ;;
2385         --enable-?*|--disable-?*)
2386             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2387             if is_in $option $COMPONENT_LIST; then
2388                 test $action = disable && action=unset
2389                 eval $action \$$(toupper ${option%s})_LIST
2390             elif is_in $option $CMDLINE_SELECT; then
2391                 $action $option
2392             else
2393                 die_unknown $opt
2394             fi
2395         ;;
2396         --list-*)
2397             NAME="${opt#--list-}"
2398             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2399             NAME=${NAME%s}
2400             eval show_list $NAME \$$(toupper $NAME)_LIST
2401         ;;
2402         --help|-h) show_help
2403         ;;
2404         --fatal-warnings) enable fatal_warnings
2405         ;;
2406         *)
2407             optname="${opt%%=*}"
2408             optname="${optname#--}"
2409             optname=$(echo "$optname" | sed 's/-/_/g')
2410             if is_in $optname $CMDLINE_SET; then
2411                 eval $optname='$optval'
2412             elif is_in $optname $CMDLINE_APPEND; then
2413                 append $optname "$optval"
2414             else
2415                 die_unknown $opt
2416             fi
2417         ;;
2418     esac
2419 done
2420
2421 disabled logging && logfile=/dev/null
2422
2423 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2424 set >> $logfile
2425
2426 test -n "$cross_prefix" && enable cross_compile
2427
2428 if enabled cross_compile; then
2429     test -n "$arch" && test -n "$target_os" ||
2430         die "Must specify target arch and OS when cross-compiling"
2431 fi
2432
2433 ar_default="${cross_prefix}${ar_default}"
2434 cc_default="${cross_prefix}${cc_default}"
2435 cxx_default="${cross_prefix}${cxx_default}"
2436 nm_default="${cross_prefix}${nm_default}"
2437 pkg_config_default="${cross_prefix}${pkg_config_default}"
2438 ranlib="${cross_prefix}${ranlib}"
2439 strip_default="${cross_prefix}${strip_default}"
2440
2441 sysinclude_default="${sysroot}/usr/include"
2442
2443 case "$toolchain" in
2444     clang-asan)
2445         cc_default="clang"
2446         add_cflags  -faddress-sanitizer
2447         add_ldflags -faddress-sanitizer
2448     ;;
2449     clang-tsan)
2450         cc_default="clang"
2451         add_cflags  -fthread-sanitizer
2452         add_ldflags -fthread-sanitizer
2453     ;;
2454     msvc)
2455         cc_default="c99wrap cl"
2456         ld_default="c99wrap link"
2457         nm_default="dumpbin -symbols"
2458         ar_default="lib"
2459         target_os_default="win32"
2460     ;;
2461     ?*)
2462         die "Unknown toolchain $toolchain"
2463     ;;
2464 esac
2465
2466 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2467 enabled cross_compile || host_cc_default=$cc
2468 set_default host_cc
2469
2470 if ! $pkg_config --version >/dev/null 2>&1; then
2471     warn "$pkg_config not found, library detection may fail."
2472     pkg_config=false
2473 fi
2474
2475 exesuf() {
2476     case $1 in
2477         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2478     esac
2479 }
2480
2481 EXESUF=$(exesuf $target_os)
2482 HOSTEXESUF=$(exesuf $host_os)
2483
2484 # set temporary file name
2485 : ${TMPDIR:=$TEMPDIR}
2486 : ${TMPDIR:=$TMP}
2487 : ${TMPDIR:=/tmp}
2488
2489 if ! check_cmd mktemp -u XXXXXX; then
2490     # simple replacement for missing mktemp
2491     # NOT SAFE FOR GENERAL USE
2492     mktemp(){
2493         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2494     }
2495 fi
2496
2497 tmpfile(){
2498     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2499         (set -C; exec > $tmp) 2>/dev/null ||
2500         die "Unable to create temporary file in $TMPDIR."
2501     append TMPFILES $tmp
2502     eval $1=$tmp
2503 }
2504
2505 trap 'rm -f -- $TMPFILES' EXIT
2506
2507 tmpfile TMPASM .asm
2508 tmpfile TMPC   .c
2509 tmpfile TMPCPP .cpp
2510 tmpfile TMPE   $EXESUF
2511 tmpfile TMPH   .h
2512 tmpfile TMPO   .o
2513 tmpfile TMPS   .S
2514 tmpfile TMPSH  .sh
2515 tmpfile TMPV   .ver
2516
2517 unset -f mktemp
2518
2519 chmod +x $TMPE
2520
2521 # make sure we can execute files in $TMPDIR
2522 cat > $TMPSH 2>> $logfile <<EOF
2523 #! /bin/sh
2524 EOF
2525 chmod +x $TMPSH >> $logfile 2>&1
2526 if ! $TMPSH >> $logfile 2>&1; then
2527     cat <<EOF
2528 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2529 variable to another directory and make sure that it is not mounted noexec.
2530 EOF
2531     die "Sanity test failed."
2532 fi
2533
2534 ccc_flags(){
2535     for flag; do
2536         case $flag in
2537             -std=c99)           echo -c99                       ;;
2538             -mcpu=*)            echo -arch ${flag#*=}           ;;
2539             -mieee)             echo -ieee                      ;;
2540             -O*|-fast)          echo $flag                      ;;
2541             -fno-math-errno)    echo -assume nomath_errno       ;;
2542             -g)                 echo -g3                        ;;
2543             -Wall)              echo -msg_enable level2         ;;
2544             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2545             -Wl,*)              echo $flag                      ;;
2546             -f*|-W*)                                            ;;
2547             *)                  echo $flag                      ;;
2548         esac
2549    done
2550 }
2551
2552 msvc_flags(){
2553     for flag; do
2554         case $flag in
2555             -fomit-frame-pointer) echo -Oy ;;
2556             -g)                   echo -Z7 ;;
2557             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2558                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2559                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2560                                        -wd4554 \
2561                                        -wd4996 -wd4273 ;;
2562             -std=c99)             ;;
2563             -fno-math-errno)      ;;
2564             -fno-common)          ;;
2565             -fno-signed-zeros)    ;;
2566             -fPIC)                ;;
2567             -lz)                  echo zlib.lib ;;
2568             -lavifil32)           echo vfw32.lib ;;
2569             -lavicap32)           echo vfw32.lib user32.lib ;;
2570             -l*)                  echo ${flag#-l}.lib ;;
2571             *)                    echo $flag ;;
2572         esac
2573     done
2574 }
2575
2576 pgi_flags(){
2577     for flag; do
2578         case $flag in
2579             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2580             -fomit-frame-pointer) echo -Mnoframe ;;
2581             -g)                   echo -gopt ;;
2582             *)                    echo $flag ;;
2583         esac
2584     done
2585 }
2586
2587 suncc_flags(){
2588     for flag; do
2589         case $flag in
2590             -march=*|-mcpu=*)
2591                 case "${flag#*=}" in
2592                     native)                   echo -xtarget=native       ;;
2593                     v9|niagara)               echo -xarch=sparc          ;;
2594                     ultrasparc)               echo -xarch=sparcvis       ;;
2595                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2596                     i586|pentium)             echo -xchip=pentium        ;;
2597                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2598                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2599                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2600                     pentium4*)          echo -xtarget=pentium4           ;;
2601                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2602                     *-sse3)             echo -xarch=sse3                 ;;
2603                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2604                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2605                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2606                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2607                     bdver*)                   echo -xarch=avx            ;;
2608                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2609                     k8|opteron|athlon64|athlon-fx)
2610                                               echo -xarch=sse2a          ;;
2611                     athlon*)                  echo -xarch=pentium_proa   ;;
2612                 esac
2613                 ;;
2614             -std=c99)             echo -xc99              ;;
2615             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2616             -fPIC)                echo -KPIC -xcode=pic32 ;;
2617             -W*,*)                echo $flag              ;;
2618             -f*-*|-W*|-mimpure-text)                      ;;
2619             -shared)              echo -G                 ;;
2620             *)                    echo $flag              ;;
2621         esac
2622     done
2623 }
2624
2625 tms470_flags(){
2626     for flag; do
2627         case $flag in
2628             -march=*|-mcpu=*)
2629                 case "${flag#*=}" in
2630                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2631                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2632                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2633                     armv6*|arm11*)          echo -mv=6   ;;
2634                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2635                                             echo -mv=5e  ;;
2636                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2637                 esac
2638                 ;;
2639             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2640             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2641             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2642             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2643             -msoft-float)   echo --float_support=vfplib       ;;
2644             -O[0-3]|-mf=*)  echo $flag                        ;;
2645             -g)             echo -g -mn                       ;;
2646             -pds=*)         echo $flag                        ;;
2647             -D*|-I*)        echo $flag                        ;;
2648             --gcc|--abi=*)  echo $flag                        ;;
2649             -me)            echo $flag                        ;;
2650         esac
2651     done
2652 }
2653
2654 probe_cc(){
2655     pfx=$1
2656     _cc=$2
2657
2658     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2659     unset _ld_o _ldflags _ld_lib _ld_path
2660     unset _depflags _DEPCMD _DEPFLAGS
2661     _flags_filter=echo
2662
2663     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2664         _type=llvm_gcc
2665         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2666         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2667         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2668         _cflags_speed='-O3'
2669         _cflags_size='-Os'
2670     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2671         _type=gcc
2672         gcc_version=$($_cc --version | head -n1)
2673         gcc_basever=$($_cc -dumpversion)
2674         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2675         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2676         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2677         if ! $_cc -dumpversion | grep -q '^2\.'; then
2678             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2679         fi
2680         _cflags_speed='-O3'
2681         _cflags_size='-Os'
2682     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2683         _type=icc
2684         _ident=$($_cc --version | head -n1)
2685         _depflags='-MMD'
2686         _cflags_speed='-O3'
2687         _cflags_size='-Os'
2688         _cflags_noopt='-O1'
2689     elif $_cc -v 2>&1 | grep -q xlc; then
2690         _type=xlc
2691         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2692         _cflags_speed='-O5'
2693         _cflags_size='-O5 -qcompact'
2694     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2695         _type=ccc
2696         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2697         _DEPFLAGS='-M'
2698         _cflags_speed='-fast'
2699         _cflags_size='-O1'
2700         _flags_filter=ccc_flags
2701     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2702         test -d "$sysroot" || die "No valid sysroot specified."
2703         _type=armcc
2704         _ident=$($_cc --vsn | head -n1)
2705         armcc_conf="$PWD/armcc.conf"
2706         $_cc --arm_linux_configure                 \
2707              --arm_linux_config_file="$armcc_conf" \
2708              --configure_sysroot="$sysroot"        \
2709              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2710              die "Error creating armcc configuration file."
2711         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2712         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2713         as_default="${cross_prefix}gcc"
2714         _depflags='-MMD'
2715         _cflags_speed='-O3'
2716         _cflags_size='-Os'
2717     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2718         _type=tms470
2719         _ident=$($_cc -version | head -n1 | tr -s ' ')
2720         _flags='--gcc --abi=eabi -me'
2721         _cc_e='-ppl -fe=$@'
2722         _cc_o='-fe=$@'
2723         _depflags='-ppa -ppd=$(@:.o=.d)'
2724         _cflags_speed='-O3 -mf=5'
2725         _cflags_size='-O3 -mf=2'
2726         _flags_filter=tms470_flags
2727     elif $_cc -v 2>&1 | grep -q clang; then
2728         _type=clang
2729         _ident=$($_cc --version | head -n1)
2730         _depflags='-MMD'
2731         _cflags_speed='-O3'
2732         _cflags_size='-Os'
2733     elif $_cc -V 2>&1 | grep -q Sun; then
2734         _type=suncc
2735         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2736         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2737         _DEPFLAGS='-xM1 -xc99'
2738         _ldflags='-std=c99'
2739         _cflags_speed='-O5'
2740         _cflags_size='-O5 -xspace'
2741         _flags_filter=suncc_flags
2742     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2743         _type=pathscale
2744         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2745         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2746         _cflags_speed='-O2'
2747         _cflags_size='-Os'
2748         _flags_filter='filter_out -Wdisabled-optimization'
2749     elif $_cc -v 2>&1 | grep -q Open64; then
2750         _type=open64
2751         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2752         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2753         _cflags_speed='-O2'
2754         _cflags_size='-Os'
2755         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2756     elif $_cc -V 2>&1 | grep -q Portland; then
2757         _type=pgi
2758         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2759         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2760         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2761         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2762         _cflags_noopt="-O1"
2763         _flags_filter=pgi_flags
2764     elif $_cc 2>&1 | grep -q Microsoft; then
2765         _type=msvc
2766         _ident=$($cc 2>&1 | head -n1)
2767         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2768         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2769         _cflags_speed="-O2"
2770         _cflags_size="-O1"
2771         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2772         if $_cc 2>&1 | grep -q Linker; then
2773             _ld_o='-out $@'
2774         else
2775             _ld_o='-Fe$@'
2776         fi
2777         _cc_o='-Fo $@'
2778         _cc_e='-P -Fi $@'
2779         _flags_filter=msvc_flags
2780         _ld_lib='lib%.a'
2781         _ld_path='-libpath:'
2782         _flags='-nologo'
2783         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2784         if [ $pfx = hostcc ]; then
2785             append _cflags -Dsnprintf=_snprintf
2786         fi
2787         disable stripping
2788     fi
2789
2790     eval ${pfx}_type=\$_type
2791     eval ${pfx}_ident=\$_ident
2792 }
2793
2794 set_ccvars(){
2795     eval ${1}_C=\${_cc_c-\${${1}_C}}
2796     eval ${1}_E=\${_cc_e-\${${1}_E}}
2797     eval ${1}_O=\${_cc_o-\${${1}_O}}
2798
2799     if [ -n "$_depflags" ]; then
2800         eval ${1}_DEPFLAGS=\$_depflags
2801     else
2802         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2803         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2804         eval DEP${1}FLAGS=\$_flags
2805     fi
2806 }
2807
2808 probe_cc cc "$cc"
2809 cflags_filter=$_flags_filter
2810 cflags_speed=$_cflags_speed
2811 cflags_size=$_cflags_size
2812 cflags_noopt=$_cflags_noopt
2813 add_cflags $_flags $_cflags
2814 cc_ldflags=$_ldflags
2815 set_ccvars CC
2816
2817 probe_cc hostcc "$host_cc"
2818 host_cflags_filter=$_flags_filter
2819 add_host_cflags  $_flags $_cflags
2820 set_ccvars HOSTCC
2821
2822 test -n "$cc_type" && enable $cc_type ||
2823     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2824
2825 : ${as_default:=$cc}
2826 : ${dep_cc_default:=$cc}
2827 : ${ld_default:=$cc}
2828 : ${host_ld_default:=$host_cc}
2829 set_default ar as dep_cc ld host_ld
2830
2831 probe_cc as "$as"
2832 asflags_filter=$_flags_filter
2833 add_asflags $_flags $_cflags
2834 set_ccvars AS
2835
2836 probe_cc ld "$ld"
2837 ldflags_filter=$_flags_filter
2838 add_ldflags $_flags $_ldflags
2839 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2840 LD_O=${_ld_o-$LD_O}
2841 LD_LIB=${_ld_lib-$LD_LIB}
2842 LD_PATH=${_ld_path-$LD_PATH}
2843
2844 probe_cc hostld "$host_ld"
2845 host_ldflags_filter=$_flags_filter
2846 add_host_ldflags $_flags $_ldflags
2847 HOSTLD_O=${_ld_o-$HOSTLD_O}
2848
2849 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2850     probe_cc depcc "$dep_cc"
2851     CCDEP=${_DEPCMD:-$DEPCMD}
2852     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2853     DEPCCFLAGS=$_flags
2854 fi
2855
2856 if $ar 2>&1 | grep -q Microsoft; then
2857     arflags="-nologo"
2858     ar_o='-out:$@'
2859 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2860     arflags="rq"
2861     ar_o='$@'
2862 else
2863     arflags="rc"
2864     ar_o='$@'
2865 fi
2866
2867 add_cflags $extra_cflags
2868 add_cxxflags $extra_cxxflags
2869 add_asflags $extra_cflags
2870
2871 if test -n "$sysroot"; then
2872     case "$cc_type" in
2873         gcc|llvm_gcc|clang)
2874             add_cppflags --sysroot="$sysroot"
2875             add_ldflags --sysroot="$sysroot"
2876         ;;
2877         tms470)
2878             add_cppflags -I"$sysinclude"
2879             add_ldflags  --sysroot="$sysroot"
2880         ;;
2881     esac
2882 fi
2883
2884 if test "$cpu" = host; then
2885     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2886
2887     case "$cc_type" in
2888         gcc|llvm_gcc)
2889             check_native(){
2890                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2891                 sed -n "/cc1.*$1=/{
2892                             s/.*$1=\\([^ ]*\\).*/\\1/
2893                             p
2894                             q
2895                         }" $TMPE
2896             }
2897             cpu=$(check_native -march || check_native -mcpu)
2898         ;;
2899     esac
2900
2901     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2902 fi
2903
2904 # Deal with common $arch aliases
2905 case "$arch" in
2906     aarch64|arm64)
2907         arch="aarch64"
2908     ;;
2909     arm*|iPad*)
2910         arch="arm"
2911     ;;
2912     mips*|IP*)
2913         arch="mips"
2914     ;;
2915     parisc*|hppa*)
2916         arch="parisc"
2917     ;;
2918     "Power Macintosh"|ppc*|powerpc*)
2919         arch="ppc"
2920     ;;
2921     s390|s390x)
2922         arch="s390"
2923     ;;
2924     sh4|sh)
2925         arch="sh4"
2926     ;;
2927     sun4u|sparc*)
2928         arch="sparc"
2929     ;;
2930     tilegx|tile-gx)
2931         arch="tilegx"
2932     ;;
2933     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2934         arch="x86"
2935     ;;
2936 esac
2937
2938 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2939 enable $arch
2940
2941 # Add processor-specific flags
2942 if enabled aarch64; then
2943
2944     case $cpu in
2945         armv*)
2946             cpuflags="-march=$cpu"
2947         ;;
2948         *)
2949             cpuflags="-mcpu=$cpu"
2950         ;;
2951     esac
2952
2953 elif enabled alpha; then
2954
2955     cpuflags="-mcpu=$cpu"
2956
2957 elif enabled arm; then
2958
2959     check_arm_arch() {
2960         check_cpp_condition stddef.h \
2961             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2962             $cpuflags
2963     }
2964
2965     probe_arm_arch() {
2966         if   check_arm_arch 4;        then echo armv4;
2967         elif check_arm_arch 4T;       then echo armv4t;
2968         elif check_arm_arch 5;        then echo armv5;
2969         elif check_arm_arch 5E;       then echo armv5e;
2970         elif check_arm_arch 5T;       then echo armv5t;
2971         elif check_arm_arch 5TE;      then echo armv5te;
2972         elif check_arm_arch 5TEJ;     then echo armv5te;
2973         elif check_arm_arch 6;        then echo armv6;
2974         elif check_arm_arch 6J;       then echo armv6j;
2975         elif check_arm_arch 6K;       then echo armv6k;
2976         elif check_arm_arch 6Z;       then echo armv6z;
2977         elif check_arm_arch 6ZK;      then echo armv6zk;
2978         elif check_arm_arch 6T2;      then echo armv6t2;
2979         elif check_arm_arch 7;        then echo armv7;
2980         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2981         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2982         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2983         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2984         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2985         fi
2986     }
2987
2988     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2989
2990     case $cpu in
2991         armv*)
2992             cpuflags="-march=$cpu"
2993             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2994         ;;
2995         *)
2996             cpuflags="-mcpu=$cpu"
2997             case $cpu in
2998                 cortex-a*)                               subarch=armv7a  ;;
2999                 cortex-r*)                               subarch=armv7r  ;;
3000                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3001                 arm11*)                                  subarch=armv6   ;;
3002                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3003                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3004                 *)                             subarch=$(probe_arm_arch) ;;
3005             esac
3006         ;;
3007     esac
3008
3009     case "$subarch" in
3010         armv5t*)    enable fast_clz                ;;
3011         armv[6-8]*) enable fast_clz fast_unaligned ;;
3012     esac
3013
3014 elif enabled avr32; then
3015
3016     case $cpu in
3017         ap7[02]0[0-2])
3018             subarch="avr32_ap"
3019             cpuflags="-mpart=$cpu"
3020         ;;
3021         ap)
3022             subarch="avr32_ap"
3023             cpuflags="-march=$cpu"
3024         ;;
3025         uc3[ab]*)
3026             subarch="avr32_uc"
3027             cpuflags="-mcpu=$cpu"
3028         ;;
3029         uc)
3030             subarch="avr32_uc"
3031             cpuflags="-march=$cpu"
3032         ;;
3033     esac
3034
3035 elif enabled bfin; then
3036
3037     cpuflags="-mcpu=$cpu"
3038
3039 elif enabled mips; then
3040
3041     cpuflags="-march=$cpu"
3042
3043     case $cpu in
3044         24kc)
3045             disable mipsfpu
3046             disable mipsdspr1
3047             disable mipsdspr2
3048         ;;
3049         24kf*)
3050             disable mipsdspr1
3051             disable mipsdspr2
3052         ;;
3053         24kec|34kc|1004kc)
3054             disable mipsfpu
3055             disable mipsdspr2
3056         ;;
3057         24kef*|34kf*|1004kf*)
3058             disable mipsdspr2
3059         ;;
3060         74kc)
3061             disable mipsfpu
3062         ;;
3063     esac
3064
3065 elif enabled ppc; then
3066
3067     case $(tolower $cpu) in
3068         601|ppc601|powerpc601)
3069             cpuflags="-mcpu=601"
3070             disable altivec
3071         ;;
3072         603*|ppc603*|powerpc603*)
3073             cpuflags="-mcpu=603"
3074             disable altivec
3075         ;;
3076         604*|ppc604*|powerpc604*)
3077             cpuflags="-mcpu=604"
3078             disable altivec
3079         ;;
3080         g3|75*|ppc75*|powerpc75*)
3081             cpuflags="-mcpu=750"
3082             disable altivec
3083         ;;
3084         g4|745*|ppc745*|powerpc745*)
3085             cpuflags="-mcpu=7450"
3086         ;;
3087         74*|ppc74*|powerpc74*)
3088             cpuflags="-mcpu=7400"
3089         ;;
3090         g5|970|ppc970|powerpc970)
3091             cpuflags="-mcpu=970"
3092         ;;
3093         power[3-7]*)
3094             cpuflags="-mcpu=$cpu"
3095         ;;
3096         cell)
3097             cpuflags="-mcpu=cell"
3098             enable ldbrx
3099         ;;
3100         e500mc)
3101             cpuflags="-mcpu=e500mc"
3102             disable altivec
3103         ;;
3104         e500v2)
3105             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3106             disable altivec
3107         ;;
3108         e500)
3109             cpuflags="-mcpu=8540 -mhard-float"
3110             disable altivec
3111         ;;
3112     esac
3113
3114 elif enabled sparc; then
3115
3116     case $cpu in
3117         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3118             cpuflags="-mcpu=$cpu"
3119             disable vis
3120         ;;
3121         ultrasparc*|niagara[234])
3122             cpuflags="-mcpu=$cpu"
3123         ;;
3124     esac
3125
3126 elif enabled x86; then
3127
3128     case $cpu in
3129         i[345]86|pentium)
3130             cpuflags="-march=$cpu"
3131             disable mmx
3132         ;;
3133         # targets that do NOT support conditional mov (cmov)
3134         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3135             cpuflags="-march=$cpu"
3136             disable cmov
3137         ;;
3138         # targets that do support conditional mov (cmov)
3139         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3140             cpuflags="-march=$cpu"
3141             enable cmov
3142             enable fast_cmov
3143         ;;
3144         # targets that do support conditional mov but on which it's slow
3145         pentium4|pentium4m|prescott|nocona)
3146             cpuflags="-march=$cpu"
3147             enable cmov
3148             disable fast_cmov
3149         ;;
3150     esac
3151
3152 fi
3153
3154 if [ "$cpu" != generic ]; then
3155     add_cflags  $cpuflags
3156     add_asflags $cpuflags
3157 fi
3158
3159 # compiler sanity check
3160 check_exec <<EOF
3161 int main(void){ return 0; }
3162 EOF
3163 if test "$?" != 0; then
3164     echo "$cc is unable to create an executable file."
3165     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3166         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3167         echo "Only do this if you know what cross compiling means."
3168     fi
3169     die "C compiler test failed."
3170 fi
3171
3172 add_cppflags -D_ISOC99_SOURCE
3173 add_cxxflags -D__STDC_CONSTANT_MACROS
3174 check_cflags -std=c99
3175 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3176 #include <stdlib.h>
3177 EOF
3178 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3179 #include <stdlib.h>
3180 EOF
3181
3182 check_host_cflags -std=c99
3183 check_host_cflags -Wall
3184
3185 check_64bit(){
3186     arch32=$1
3187     arch64=$2
3188     expr=$3
3189     check_code cc "" "int test[2*($expr) - 1]" &&
3190         subarch=$arch64 || subarch=$arch32
3191 }
3192
3193 case "$arch" in
3194     aarch64|alpha|ia64)
3195         spic=$shared
3196     ;;
3197     mips)
3198         check_64bit mips mips64 '_MIPS_SIM > 1'
3199         spic=$shared
3200     ;;
3201     parisc)
3202         check_64bit parisc parisc64 'sizeof(void *) > 4'
3203         spic=$shared
3204     ;;
3205     ppc)
3206         check_64bit ppc ppc64 'sizeof(void *) > 4'
3207         spic=$shared
3208     ;;
3209     sparc)
3210         check_64bit sparc sparc64 'sizeof(void *) > 4'
3211         spic=$shared
3212     ;;
3213     x86)
3214         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3215         if test "$subarch" = "x86_64"; then
3216             spic=$shared
3217         fi
3218     ;;
3219     ppc)
3220         check_cc <<EOF && subarch="ppc64"
3221         int test[(int)sizeof(char*) - 7];
3222 EOF
3223     ;;
3224 esac
3225
3226 enable $subarch
3227 enabled spic && enable pic
3228
3229 # OS specific
3230 case $target_os in
3231     haiku)
3232         prefix_default="/boot/common"
3233         network_extralibs="-lnetwork"
3234         host_libs=
3235         ;;
3236     sunos)
3237         FFSERVERLDFLAGS=""
3238         SHFLAGS='-shared -Wl,-h,$$(@F)'
3239         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3240         network_extralibs="-lsocket -lnsl"
3241         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3242         # When using suncc to build, the Solaris linker will mark
3243         # an executable with each instruction set encountered by
3244         # the Solaris assembler.  As our libraries contain their own
3245         # guards for processor-specific code, instead suppress
3246         # generation of the HWCAPS ELF section on Solaris x86 only.
3247         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3248         nm_default='nm -P -g'
3249         ;;
3250     netbsd)
3251         disable symver
3252         oss_indev_extralibs="-lossaudio"
3253         oss_outdev_extralibs="-lossaudio"
3254         enabled gcc || check_ldflags -Wl,-zmuldefs
3255         ;;
3256     openbsd|bitrig)
3257         disable symver
3258         SHFLAGS='-shared'
3259         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3260         SLIB_INSTALL_LINKS=
3261         oss_indev_extralibs="-lossaudio"
3262         oss_outdev_extralibs="-lossaudio"
3263         ;;
3264     dragonfly)
3265         disable symver
3266         ;;
3267     freebsd)
3268         ;;
3269     bsd/os)
3270         add_extralibs -lpoll -lgnugetopt
3271         strip="strip -d"
3272         ;;
3273     darwin)
3274         gas="gas-preprocessor.pl $cc"
3275         enabled ppc && add_asflags -force_cpusubtype_ALL
3276         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3277         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3278         strip="${strip} -x"
3279         add_ldflags -Wl,-dynamic,-search_paths_first
3280         SLIBSUF=".dylib"
3281         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3282         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3283         FFSERVERLDFLAGS=-Wl,-bind_at_load
3284         objformat="macho"
3285         enabled x86_64 && objformat="macho64"
3286         enabled_any pic shared ||
3287             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3288         ;;
3289     mingw32*)
3290         if test $target_os = "mingw32ce"; then
3291             disable network
3292         else
3293             target_os=mingw32
3294         fi
3295         LIBTARGET=i386
3296         if enabled x86_64; then
3297             LIBTARGET="i386:x86-64"
3298         elif enabled arm; then
3299             LIBTARGET=arm-wince
3300         fi
3301         shlibdir_default="$bindir_default"
3302         SLIBPREF=""
3303         SLIBSUF=".dll"
3304         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3305         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3306         dlltool="${cross_prefix}dlltool"
3307         if check_cmd lib.exe -list; then
3308             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3309             if enabled x86_64; then
3310                 LIBTARGET=x64
3311             fi
3312         elif check_cmd $dlltool --version; then
3313             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3314         fi
3315         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3316         SLIB_INSTALL_LINKS=
3317         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3318         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3319         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3320         objformat="win32"
3321         ranlib=:
3322         enable dos_paths
3323         ;;
3324     win32|win64)
3325         if enabled shared; then
3326             # Link to the import library instead of the normal static library
3327             # for shared libs.
3328             LD_LIB='%.lib'
3329             # Cannot build shared and static libraries at the same time with
3330             # MSVC.
3331             disable static
3332         fi
3333         shlibdir_default="$bindir_default"
3334         SLIBPREF=""
3335         SLIBSUF=".dll"
3336         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3337         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3338         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3339         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3340         SLIB_INSTALL_LINKS=
3341         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3342         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3343         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3344         objformat="win32"
3345         ranlib=:
3346         enable dos_paths
3347         ;;
3348     cygwin*)
3349         target_os=cygwin
3350         shlibdir_default="$bindir_default"
3351         SLIBPREF="cyg"
3352         SLIBSUF=".dll"
3353         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3354         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3355         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3356         SLIB_INSTALL_LINKS=
3357         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3358         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3359         objformat="win32"
3360         enable dos_paths
3361         ;;
3362     *-dos|freedos|opendos)
3363         network_extralibs="-lsocket"
3364         objformat="coff"
3365         enable dos_paths
3366         add_cppflags -U__STRICT_ANSI__
3367         ;;
3368     linux)
3369         enable dv1394
3370         ;;
3371     irix*)
3372         target_os=irix
3373         ranlib="echo ignoring ranlib"
3374         ;;
3375     os/2*)
3376         strip="lxlite -CS"
3377         ln_s="cp -f"
3378         objformat="aout"
3379         add_cppflags -D_GNU_SOURCE
3380         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3381         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3382         FFSERVERLDFLAGS=""
3383         LIBSUF="_s.a"
3384         SLIBPREF=""
3385         SLIBSUF=".dll"
3386         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3387         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3388         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3389             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3390             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3391             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3392             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3393             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3394         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3395             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3396         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3397         enable dos_paths
3398         enable_weak os2threads
3399         ;;
3400     gnu/kfreebsd)
3401         add_cppflags -D_BSD_SOURCE
3402         ;;
3403     gnu)
3404         ;;
3405     qnx)
3406         add_cppflags -D_QNX_SOURCE
3407         network_extralibs="-lsocket"
3408         ;;
3409     symbian)
3410         SLIBSUF=".dll"
3411         enable dos_paths
3412         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3413         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3414         add_ldflags -Wl,--target1-abs,--no-undefined \
3415                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3416                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3417         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3418                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3419                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3420         ;;
3421     osf1)
3422         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3423         FFSERVERLDFLAGS=
3424         ;;
3425     minix)
3426         ;;
3427     plan9)
3428         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3429                      -D_REENTRANT_SOURCE        \
3430                      -D_RESEARCH_SOURCE         \
3431                      -DFD_SETSIZE=96            \
3432                      -DHAVE_SOCK_OPTS
3433         add_compat strtod.o strtod=avpriv_strtod
3434         network_extralibs='-lbsd'
3435         exeobjs=compat/plan9/main.o
3436         disable ffserver
3437         cp_f='cp'
3438         ;;
3439     none)
3440         ;;
3441     *)
3442         die "Unknown OS '$target_os'."
3443         ;;
3444 esac
3445
3446 # determine libc flavour
3447
3448 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3449 if check_cpp_condition features.h "defined __UCLIBC__"; then
3450     libc_type=uclibc
3451     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3452 elif check_cpp_condition features.h "defined __GLIBC__"; then
3453     libc_type=glibc
3454     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3455 # MinGW headers can be installed on Cygwin, so check for newlib first.
3456 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3457     libc_type=newlib
3458     add_cppflags -U__STRICT_ANSI__
3459 elif check_header _mingw.h; then
3460     libc_type=mingw
3461     check_cpp_condition _mingw.h \
3462         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3463             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3464         die "ERROR: MinGW runtime version must be >= 3.15."
3465     add_cppflags -U__STRICT_ANSI__
3466     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3467             __MINGW64_VERSION_MAJOR < 3"; then
3468         add_compat msvcrt/snprintf.o
3469         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3470     fi
3471 elif check_func_headers stdlib.h _get_doserrno; then
3472     libc_type=msvcrt
3473     add_compat strtod.o strtod=avpriv_strtod
3474     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3475                                  _snprintf=avpriv_snprintf  \
3476                                  vsnprintf=avpriv_vsnprintf
3477 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3478     libc_type=klibc
3479 fi
3480
3481 test -n "$libc_type" && enable $libc_type
3482
3483 # hacks for compiler/libc/os combinations
3484
3485 if enabled_all tms470 glibc; then
3486     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3487     add_cppflags -D__USER_LABEL_PREFIX__=
3488     add_cppflags -D__builtin_memset=memset
3489     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3490     add_cflags   -pds=48    # incompatible redefinition of macro
3491 fi
3492
3493 if enabled_all ccc glibc; then
3494     add_ldflags -Wl,-z,now  # calls to libots crash without this
3495 fi
3496
3497 esc(){
3498     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3499 }
3500
3501 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3502
3503 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3504
3505 set_default $PATHS_LIST
3506 set_default nm
3507
3508 # we need to build at least one lib type
3509 if ! enabled_any static shared; then
3510     cat <<EOF
3511 At least one library type must be built.
3512 Specify --enable-static to build the static libraries or --enable-shared to
3513 build the shared libraries as well. To only build the shared libraries specify
3514 --disable-static in addition to --enable-shared.
3515 EOF
3516     exit 1;
3517 fi
3518
3519 die_license_disabled() {
3520     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3521 }
3522
3523 die_license_disabled_gpl() {
3524     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3525 }
3526
3527 die_license_disabled gpl libcdio
3528 die_license_disabled gpl libutvideo
3529 die_license_disabled gpl libx264
3530 die_license_disabled gpl libxavs
3531 die_license_disabled gpl libxvid
3532 die_license_disabled gpl x11grab
3533
3534 die_license_disabled nonfree libaacplus
3535 die_license_disabled nonfree libfaac
3536 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3537 enabled gpl && die_license_disabled_gpl nonfree openssl
3538
3539 die_license_disabled version3 libopencore_amrnb
3540 die_license_disabled version3 libopencore_amrwb
3541 die_license_disabled version3 libvo_aacenc
3542 die_license_disabled version3 libvo_amrwbenc
3543
3544 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3545
3546 disabled optimizations || check_cflags -fomit-frame-pointer
3547
3548 enable_pic() {
3549     enable pic
3550     add_cppflags -DPIC
3551     add_cflags   -fPIC
3552     add_asflags  -fPIC
3553 }
3554
3555 enabled pic && enable_pic
3556
3557 check_cc <<EOF || die "Symbol mangling check failed."
3558 int ff_extern;
3559 EOF
3560 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3561 extern_prefix=${sym%%ff_extern*}
3562
3563 check_cc <<EOF && enable_weak inline_asm
3564 void foo(void) { __asm__ volatile ("" ::); }
3565 EOF
3566
3567 _restrict=
3568 for restrict_keyword in restrict __restrict__ __restrict; do
3569     check_cc <<EOF && _restrict=$restrict_keyword && break
3570 void foo(char * $restrict_keyword p);
3571 EOF
3572 done
3573
3574 check_cc <<EOF && enable attribute_packed
3575 struct { int x; } __attribute__((packed)) x;
3576 EOF
3577
3578 check_cc <<EOF && enable attribute_may_alias
3579 union { int x; } __attribute__((may_alias)) x;
3580 EOF
3581
3582 check_cc <<EOF || die "endian test failed"
3583 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3584 EOF
3585 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3586
3587 if enabled alpha; then
3588
3589     check_cflags -mieee
3590
3591 elif enabled arm; then
3592
3593     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3594 float func(float a, float b){ return a+b; }
3595 EOF
3596
3597     enabled thumb && check_cflags -mthumb || check_cflags -marm
3598     nogas=die
3599
3600     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3601         enable vfp_args
3602     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3603         case "${cross_prefix:-$cc}" in
3604             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3605             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3606 __asm__ (".eabi_attribute 28, 1");
3607 int main(void) { return 0; }
3608 EOF
3609         esac
3610         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3611     fi
3612
3613     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3614     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3615     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3616     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3617     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3618     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3619
3620     [ $target_os = linux ] ||
3621         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3622             $ARCH_EXT_LIST_ARM
3623
3624     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3625     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3626
3627     enabled_all armv6t2 shared !pic && enable_pic
3628
3629 elif enabled mips; then
3630
3631     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3632     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3633      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3634     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3635      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3636     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3637      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3638     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3639      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3640
3641 elif enabled parisc; then
3642
3643     if enabled gcc; then
3644         case $($cc -dumpversion) in
3645             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3646         esac
3647     fi
3648
3649 elif enabled ppc; then
3650
3651     enable local_aligned_8 local_aligned_16
3652
3653     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3654     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3655     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3656     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3657
3658     # AltiVec flags: The FSF version of GCC differs from the Apple version
3659     if enabled altivec; then
3660         nogas=warn
3661         check_cflags -maltivec -mabi=altivec &&
3662         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3663         check_cflags -faltivec
3664
3665         # check if our compiler supports Motorola AltiVec C API
3666         check_cc <<EOF || disable altivec
3667 $inc_altivec_h
3668 int main(void) {
3669     vector signed int v1 = (vector signed int) { 0 };
3670     vector signed int v2 = (vector signed int) { 1 };
3671     v1 = vec_add(v1, v2);
3672     return 0;
3673 }
3674 EOF
3675
3676         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3677     fi
3678
3679 elif enabled sparc; then
3680
3681     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3682
3683 elif enabled x86; then
3684
3685     check_builtin rdtsc    intrin.h   "__rdtsc()"
3686     check_builtin mm_empty mmintrin.h "_mm_empty()"
3687
3688     enable local_aligned_8 local_aligned_16
3689
3690     # check whether EBP is available on x86
3691     # As 'i' is stored on the stack, this program will crash
3692     # if the base pointer is used to access it because the
3693     # base pointer is cleared in the inline assembly code.
3694     check_exec_crash <<EOF && enable ebp_available
3695 volatile int i=0;
3696 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3697 return i;
3698 EOF
3699
3700     # check whether EBX is available on x86
3701     check_inline_asm ebx_available '""::"b"(0)' &&
3702         check_inline_asm ebx_available '"":::"%ebx"'
3703
3704     # check whether xmm clobbers are supported
3705     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3706
3707     # check whether binutils is new enough to compile SSSE3/MMXEXT
3708     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3709     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3710
3711     if ! disabled_any asm mmx yasm; then
3712         if check_cmd $yasmexe --version; then
3713             enabled x86_64 && yasm_extra="-m amd64"
3714             yasm_debug="-g dwarf2"
3715         elif check_cmd nasm -v; then
3716             yasmexe=nasm
3717             yasm_debug="-g -F dwarf"
3718             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3719         fi
3720
3721         YASMFLAGS="-f $objformat $yasm_extra"
3722         enabled pic               && append YASMFLAGS "-DPIC"
3723         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3724         case "$objformat" in
3725             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3726         esac
3727
3728         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3729             die "yasm not found, use --disable-yasm for a crippled build"
3730         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3731         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3732         check_yasm "CPU amdnop" && enable cpunop
3733     fi
3734
3735     case "$cpu" in
3736         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3737             disable fast_clz
3738         ;;
3739     esac
3740
3741 fi
3742
3743 if enabled asm; then
3744     as=${gas:=$as}
3745     check_as <<EOF && enable gnu_as || \
3746         $nogas "GNU assembler not found, install gas-preprocessor"
3747 .macro m n
3748 \n: .int 0
3749 .endm
3750 m x
3751 EOF
3752 fi
3753
3754 check_ldflags -Wl,--as-needed
3755
3756 if check_func dlopen; then
3757     ldl=
3758 elif check_func dlopen -ldl; then
3759     ldl=-ldl
3760 fi
3761
3762 if ! disabled network; then
3763     check_type "sys/types.h sys/socket.h" socklen_t
3764     check_type netdb.h "struct addrinfo"
3765     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3766     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3767     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3768     check_type netinet/in.h "struct sockaddr_in6"
3769     check_type poll.h "struct pollfd"
3770     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3771     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3772     check_type netinet/sctp.h "struct sctp_event_subscribe"
3773     check_func getaddrinfo $network_extralibs
3774     check_func getservbyport $network_extralibs
3775     # Prefer arpa/inet.h over winsock2
3776     if check_header arpa/inet.h ; then
3777         check_func closesocket
3778     elif check_header winsock2.h ; then
3779         check_func_headers winsock2.h closesocket -lws2 &&
3780             network_extralibs="-lws2" ||
3781         { check_func_headers winsock2.h closesocket -lws2_32 &&
3782             network_extralibs="-lws2_32"; }
3783         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3784         check_type ws2tcpip.h socklen_t
3785         check_type ws2tcpip.h "struct addrinfo"
3786         check_type ws2tcpip.h "struct group_source_req"
3787         check_type ws2tcpip.h "struct ip_mreq_source"
3788         check_type ws2tcpip.h "struct ipv6_mreq"
3789         check_type winsock2.h "struct pollfd"
3790         check_type ws2tcpip.h "struct sockaddr_in6"
3791         check_type ws2tcpip.h "struct sockaddr_storage"
3792         check_struct winsock2.h "struct sockaddr" sa_len
3793     else
3794         disable network
3795     fi
3796 fi
3797
3798 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3799 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3800
3801 check_func  access
3802 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3803 check_func  fcntl
3804 check_func  fork
3805 check_func  gethrtime
3806 check_func  getopt
3807 check_func  getrusage
3808 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3809 check_func  gettimeofday
3810 check_func  inet_aton $network_extralibs
3811 check_func  isatty
3812 check_func  localtime_r
3813 check_func  ${malloc_prefix}memalign            && enable memalign
3814 check_func  mkstemp
3815 check_func  mmap
3816 check_func  mprotect
3817 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3818 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3819 check_func  setrlimit
3820 check_func  strerror_r
3821 check_func  sched_getaffinity
3822 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3823 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3824 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3825 check_func  sysconf
3826 check_func  sysctl
3827 check_func  usleep
3828 check_func_headers conio.h kbhit
3829 check_func_headers windows.h PeekNamedPipe
3830 check_func_headers io.h setmode
3831 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3832 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3833 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3834 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3835 check_func_headers windows.h GetProcessAffinityMask
3836 check_func_headers windows.h GetProcessTimes
3837 check_func_headers windows.h GetSystemTimeAsFileTime
3838 check_func_headers windows.h MapViewOfFile
3839 check_func_headers windows.h SetConsoleTextAttribute
3840 check_func_headers windows.h Sleep
3841 check_func_headers windows.h VirtualAlloc
3842 check_func_headers glob.h glob
3843
3844 check_header direct.h
3845 check_header dlfcn.h
3846 check_header dxva.h
3847 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3848 check_header io.h
3849 check_header libcrystalhd/libcrystalhd_if.h
3850 check_header malloc.h
3851 check_header poll.h
3852 check_header sys/mman.h
3853 check_header sys/param.h
3854 check_header sys/resource.h
3855 check_header sys/select.h
3856 check_header sys/time.h
3857 check_header termios.h
3858 check_header unistd.h
3859 check_header vdpau/vdpau.h
3860 check_header vdpau/vdpau_x11.h
3861 check_header VideoDecodeAcceleration/VDADecoder.h
3862 check_header windows.h
3863 check_header X11/extensions/XvMClib.h
3864 check_header asm/types.h
3865
3866 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3867 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3868
3869 if ! disabled w32threads && ! enabled pthreads; then
3870     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3871 fi
3872
3873 # check for some common methods of building with pthread support
3874 # do this before the optional library checks as some of them require pthreads
3875 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3876     enable pthreads
3877     if check_func pthread_create; then
3878         :
3879     elif check_func pthread_create -pthread; then
3880         add_cflags -pthread
3881         add_extralibs -pthread
3882     elif check_func pthread_create -pthreads; then
3883         add_cflags -pthreads
3884         add_extralibs -pthreads
3885     elif check_func pthread_create -lpthreadGC2; then
3886         add_extralibs -lpthreadGC2
3887     elif ! check_lib pthread.h pthread_create -lpthread; then
3888         disable pthreads
3889     fi
3890 fi
3891
3892 for thread in $THREADS_LIST; do
3893     if enabled $thread; then
3894         test -n "$thread_type" &&
3895             die "ERROR: Only one thread type must be selected." ||
3896             thread_type="$thread"
3897     fi
3898 done
3899
3900 if enabled pthreads; then
3901   check_func pthread_cancel
3902 fi
3903
3904 check_lib math.h sin -lm && LIBM="-lm"
3905 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3906 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3907
3908 atan2f_args=2
3909 ldexpf_args=2
3910 powf_args=2
3911
3912 for func in $MATH_FUNCS; do
3913     eval check_mathfunc $func \${${func}_args:-1}
3914 done
3915
3916 # these are off by default, so fail if requested and not available
3917 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3918 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3919 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3920 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3921 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3922 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3923 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3924 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3925 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3926                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3927                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3928 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3929 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3930 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3931 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"
3932 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3933 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3934 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3935                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3936                         done || die "ERROR: libgsm not found"; }
3937 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3938 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3939 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3940 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3941 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3942 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3943 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3944 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3945                          check_lib openjpeg.h opj_version -lopenjpeg ||
3946                          die "ERROR: libopenjpeg not found"; }
3947 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3948 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3949 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3950 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3951 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3952 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3953 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3954     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3955     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3956 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3957 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3958                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3959                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3960 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3961 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3962 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3963 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3964 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3965 enabled libvpx     && {
3966     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3967                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3968     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 ||
3969                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3970     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3971     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3972 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3973                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3974                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3975 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3976 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3977 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3978                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3979                         die "ERROR: openal not found"; } &&
3980                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3981                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3982 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3983                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3984                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3985                         die "ERROR: openssl not found"; }
3986
3987 if enabled gnutls; then
3988     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3989     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3990 fi
3991
3992 # libdc1394 check
3993 if enabled libdc1394; then
3994     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3995         enable libdc1394_2; } ||
3996     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3997         enable libdc1394_1; } ||
3998     die "ERROR: No version of libdc1394 found "
3999 fi
4000
4001 SDL_CONFIG="${cross_prefix}sdl-config"
4002 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4003     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4004     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4005     enable sdl
4006 else
4007   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4008     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4009     sdl_libs=$("${SDL_CONFIG}" --libs)
4010     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4011     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4012     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4013     enable sdl
4014   fi
4015 fi
4016 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4017
4018 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4019 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4020 perl --version > /dev/null 2>&1 && enable perl || disable perl
4021 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4022 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4023
4024 check_header linux/fb.h
4025 check_header linux/videodev.h
4026 check_header linux/videodev2.h
4027 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4028
4029 check_header sys/videoio.h
4030
4031 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4032 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4033 # w32api 3.12 had it defined wrong
4034 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4035
4036 check_type "dshow.h" IBaseFilter
4037
4038 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4039 { check_header dev/bktr/ioctl_meteor.h &&
4040   check_header dev/bktr/ioctl_bt848.h; } ||
4041 { check_header machine/ioctl_meteor.h &&
4042   check_header machine/ioctl_bt848.h; } ||
4043 { check_header dev/video/meteor/ioctl_meteor.h &&
4044   check_header dev/video/bktr/ioctl_bt848.h; } ||
4045 check_header dev/ic/bt8xx.h
4046
4047 check_header sndio.h
4048 if check_struct sys/soundcard.h audio_buf_info bytes; then
4049     enable_safe sys/soundcard.h
4050 else
4051     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4052     #include <sys/soundcard.h>
4053     audio_buf_info abc;
4054 EOF
4055 fi
4056 check_header soundcard.h
4057
4058 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4059
4060 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4061     check_func jack_port_get_latency_range -ljack
4062
4063 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4064
4065 if enabled libcdio; then
4066     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
4067 fi
4068
4069 enabled x11grab                                           &&
4070 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4071 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4072 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4073
4074 if ! disabled vaapi; then
4075     check_lib va/va.h vaInitialize -lva && {
4076         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4077         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4078     } || disable vaapi
4079 fi
4080
4081 enabled vdpau &&
4082     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4083     disable vdpau
4084
4085 # Funny iconv installations are not unusual, so check it after all flags have been set
4086 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4087
4088 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4089 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4090 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"
4091
4092 # add some useful compiler flags if supported
4093 check_cflags -Wdeclaration-after-statement
4094 check_cflags -Wall
4095 check_cflags -Wno-parentheses
4096 check_cflags -Wno-switch
4097 check_cflags -Wno-format-zero-length
4098 check_cflags -Wdisabled-optimization
4099 check_cflags -Wpointer-arith
4100 check_cflags -Wredundant-decls
4101 check_cflags -Wno-pointer-sign
4102 check_cflags -Wwrite-strings
4103 check_cflags -Wtype-limits
4104 check_cflags -Wundef
4105 check_cflags -Wmissing-prototypes
4106 check_cflags -Wno-pointer-to-int-cast
4107 check_cflags -Wstrict-prototypes
4108 enabled extra_warnings && check_cflags -Winline
4109
4110 # add some linker flags
4111 check_ldflags -Wl,--warn-common
4112 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4113 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4114
4115 enabled xmm_clobber_test &&
4116     check_ldflags -Wl,--wrap,avcodec_open2              \
4117                   -Wl,--wrap,avcodec_decode_audio4      \
4118                   -Wl,--wrap,avcodec_decode_video2      \
4119                   -Wl,--wrap,avcodec_decode_subtitle2   \
4120                   -Wl,--wrap,avcodec_encode_audio2      \
4121                   -Wl,--wrap,avcodec_encode_video       \
4122                   -Wl,--wrap,avcodec_encode_subtitle    \
4123                   -Wl,--wrap,sws_scale ||
4124     disable xmm_clobber_test
4125
4126 echo "X{};" > $TMPV
4127 if test_ldflags -Wl,--version-script,$TMPV; then
4128     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4129     check_cc <<EOF && enable symver_asm_label
4130 void ff_foo(void) __asm__ ("av_foo@VERSION");
4131 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4132 EOF
4133     check_cc <<EOF && enable symver_gnu_asm
4134 __asm__(".symver ff_foo,av_foo@VERSION");
4135 void ff_foo(void) {}
4136 EOF
4137 fi
4138
4139 if [ -z "$optflags" ]; then
4140     if enabled small; then
4141         optflags=$cflags_size
4142     elif enabled optimizations; then
4143         optflags=$cflags_speed
4144     else
4145         optflags=$cflags_noopt
4146     fi
4147 fi
4148
4149 check_optflags(){
4150     check_cflags "$@"
4151     enabled lto && check_ldflags "$@"
4152 }
4153
4154
4155 if enabled lto; then
4156     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4157     check_cflags  -flto
4158     check_ldflags -flto $cpuflags
4159 fi
4160
4161 check_optflags $optflags
4162 check_optflags -fno-math-errno
4163 check_optflags -fno-signed-zeros
4164
4165 enabled ftrapv && check_cflags -ftrapv
4166
4167 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4168 int x;
4169 EOF
4170
4171
4172 if enabled icc; then
4173     # Just warnings, no remarks
4174     check_cflags -w1
4175     # -wd: Disable following warnings
4176     # 144, 167, 556: -Wno-pointer-sign
4177     # 188: enumerated type mixed with another type
4178     # 1292: attribute "foo" ignored
4179     # 1419: external declaration in primary source file
4180     # 10006: ignoring unknown option -fno-signed-zeros
4181     # 10148: ignoring unknown option -Wno-parentheses
4182     # 10156: ignoring option '-W'; no argument required
4183     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4184     # 11030: Warning unknown option --as-needed
4185     # 10156: ignoring option '-export'; no argument required
4186     check_ldflags -wd10156,11030
4187     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4188     enable ebp_available
4189     if enabled x86_32; then
4190         icc_version=$($cc -dumpversion)
4191         test ${icc_version%%.*} -ge 11 &&
4192             check_cflags -falign-stack=maintain-16-byte ||
4193             disable aligned_stack
4194     fi
4195 elif enabled ccc; then
4196     # disable some annoying warnings
4197     add_cflags -msg_disable bitnotint
4198     add_cflags -msg_disable mixfuncvoid
4199     add_cflags -msg_disable nonstandcast
4200     add_cflags -msg_disable unsupieee
4201 elif enabled gcc; then
4202     check_optflags -fno-tree-vectorize
4203     check_cflags -Werror=implicit-function-declaration
4204     check_cflags -Werror=missing-prototypes
4205     check_cflags -Werror=return-type
4206     check_cflags -Werror=vla
4207 elif enabled llvm_gcc; then
4208     check_cflags -mllvm -stack-alignment=16
4209 elif enabled clang; then
4210     check_cflags -mllvm -stack-alignment=16
4211     check_cflags -Qunused-arguments
4212     check_cflags -Werror=implicit-function-declaration
4213     check_cflags -Werror=missing-prototypes
4214     check_cflags -Werror=return-type
4215 elif enabled armcc; then
4216     # 2523: use of inline assembler is deprecated
4217     add_cflags -W${armcc_opt},--diag_suppress=2523
4218     add_cflags -W${armcc_opt},--diag_suppress=1207
4219     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4220     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4221     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4222     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4223 elif enabled tms470; then
4224     add_cflags -pds=824 -pds=837
4225 elif enabled pathscale; then
4226     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4227 elif enabled msvc; then
4228     enabled x86_32 && disable aligned_stack
4229 fi
4230
4231 case $target_os in
4232     osf1)
4233         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4234     ;;
4235     plan9)
4236         add_cppflags -Dmain=plan9_main
4237     ;;
4238 esac
4239
4240 enabled_any $THREADS_LIST      && enable threads
4241
4242 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4243
4244 check_deps $CONFIG_LIST       \
4245            $CONFIG_EXTRA      \
4246            $HAVE_LIST         \
4247            $ALL_COMPONENTS    \
4248
4249
4250 if test $target_os = "haiku"; then
4251     disable memalign
4252     disable posix_memalign
4253 fi
4254
4255 ! enabled_any memalign posix_memalign aligned_malloc &&
4256     enabled_any $need_memalign && enable memalign_hack
4257
4258 # add_dep lib dep
4259 # -> enable ${lib}_deps_${dep}
4260 # -> add $dep to ${lib}_deps only once
4261 add_dep() {
4262     lib=$1
4263     dep=$2
4264     enabled "${lib}_deps_${dep}" && return 0
4265     enable  "${lib}_deps_${dep}"
4266     prepend "${lib}_deps" $dep
4267 }
4268
4269 # merge deps lib components
4270 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4271 merge_deps() {
4272     lib=$1
4273     shift
4274     for comp in $*; do
4275         enabled $comp || continue
4276         eval "dep=\"\$${comp}_deps\""
4277         for d in $dep; do
4278             add_dep $lib $d
4279         done
4280     done
4281 }
4282
4283 merge_deps libavfilter $FILTER_LIST
4284
4285 echo "install prefix            $prefix"
4286 echo "source path               $source_path"
4287 echo "C compiler                $cc"
4288 echo "ARCH                      $arch ($cpu)"
4289 if test "$build_suffix" != ""; then
4290     echo "build suffix              $build_suffix"
4291 fi
4292 if test "$progs_suffix" != ""; then
4293     echo "progs suffix              $progs_suffix"
4294 fi
4295 if test "$extra_version" != ""; then
4296     echo "version string suffix     $extra_version"
4297 fi
4298 echo "big-endian                ${bigendian-no}"
4299 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4300 if enabled x86; then
4301     echo "${yasmexe}                      ${yasm-no}"
4302     echo "MMX enabled               ${mmx-no}"
4303     echo "MMXEXT enabled            ${mmxext-no}"
4304     echo "3DNow! enabled            ${amd3dnow-no}"
4305     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4306     echo "SSE enabled               ${sse-no}"
4307     echo "SSSE3 enabled             ${ssse3-no}"
4308     echo "AVX enabled               ${avx-no}"
4309     echo "FMA4 enabled              ${fma4-no}"
4310     echo "CMOV enabled              ${cmov-no}"
4311     echo "CMOV is fast              ${fast_cmov-no}"
4312     echo "EBX available             ${ebx_available-no}"
4313     echo "EBP available             ${ebp_available-no}"
4314 fi
4315 if enabled arm; then
4316     echo "ARMv5TE enabled           ${armv5te-no}"
4317     echo "ARMv6 enabled             ${armv6-no}"
4318     echo "ARMv6T2 enabled           ${armv6t2-no}"
4319     echo "VFP enabled               ${vfp-no}"
4320     echo "NEON enabled              ${neon-no}"
4321     echo "THUMB enabled             ${thumb-no}"
4322 fi
4323 if enabled mips; then
4324     echo "MIPS FPU enabled          ${mipsfpu-no}"
4325     echo "MIPS32R2 enabled          ${mips32r2-no}"
4326     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4327     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4328 fi
4329 if enabled ppc; then
4330     echo "AltiVec enabled           ${altivec-no}"
4331     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4332     echo "dcbzl available           ${dcbzl-no}"
4333 fi
4334 if enabled sparc; then
4335     echo "VIS enabled               ${vis-no}"
4336 fi
4337 echo "debug symbols             ${debug-no}"
4338 echo "strip symbols             ${stripping-no}"
4339 echo "optimize for size         ${small-no}"
4340 echo "optimizations             ${optimizations-no}"
4341 echo "static                    ${static-no}"
4342 echo "shared                    ${shared-no}"
4343 echo "postprocessing support    ${postproc-no}"
4344 echo "new filter support        ${avfilter-no}"
4345 echo "network support           ${network-no}"
4346 echo "threading support         ${thread_type-no}"
4347 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4348 echo "SDL support               ${sdl-no}"
4349 echo "texi2html enabled         ${texi2html-no}"
4350 echo "perl enabled              ${perl-no}"
4351 echo "pod2man enabled           ${pod2man-no}"
4352 echo "makeinfo enabled          ${makeinfo-no}"
4353 test -n "$random_seed" &&
4354     echo "random seed               ${random_seed}"
4355 echo
4356
4357 echo "External libraries:"
4358 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4359 echo
4360
4361 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4362     echo "Enabled ${type}s:"
4363     eval list=\$$(toupper $type)_LIST
4364     print_enabled '_*' $list | print_3_columns
4365     echo
4366 done
4367
4368 license="LGPL version 2.1 or later"
4369 if enabled nonfree; then
4370     license="nonfree and unredistributable"
4371 elif enabled gplv3; then
4372     license="GPL version 3 or later"
4373 elif enabled lgplv3; then
4374     license="LGPL version 3 or later"
4375 elif enabled gpl; then
4376     license="GPL version 2 or later"
4377 fi
4378
4379 echo "License: $license"
4380
4381 echo "Creating config.mak and config.h..."
4382
4383 test -e Makefile || $ln_s "$source_path/Makefile" .
4384
4385 enabled stripping || strip="echo skipping strip"
4386
4387 config_files="$TMPH config.mak"
4388
4389 cat > config.mak <<EOF
4390 # Automatically generated by configure - do not modify!
4391 ifndef FFMPEG_CONFIG_MAK
4392 FFMPEG_CONFIG_MAK=1
4393 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4394 prefix=$prefix
4395 LIBDIR=\$(DESTDIR)$libdir
4396 SHLIBDIR=\$(DESTDIR)$shlibdir
4397 INCDIR=\$(DESTDIR)$incdir
4398 BINDIR=\$(DESTDIR)$bindir
4399 DATADIR=\$(DESTDIR)$datadir
4400 MANDIR=\$(DESTDIR)$mandir
4401 SRC_PATH=$source_path
4402 ifndef MAIN_MAKEFILE
4403 SRC_PATH:=\$(SRC_PATH:.%=..%)
4404 endif
4405 CC_IDENT=$cc_ident
4406 ARCH=$arch
4407 CC=$cc
4408 CXX=$cxx
4409 AS=$as
4410 LD=$ld
4411 DEPCC=$dep_cc
4412 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4413 DEPAS=$as
4414 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4415 YASM=$yasmexe
4416 DEPYASM=$yasmexe
4417 AR=$ar
4418 ARFLAGS=$arflags
4419 AR_O=$ar_o
4420 RANLIB=$ranlib
4421 CP=cp -p
4422 LN_S=$ln_s
4423 STRIP=$strip
4424 CPPFLAGS=$CPPFLAGS
4425 CFLAGS=$CFLAGS
4426 CXXFLAGS=$CXXFLAGS
4427 ASFLAGS=$ASFLAGS
4428 AS_C=$AS_C
4429 AS_O=$AS_O
4430 CC_C=$CC_C
4431 CC_E=$CC_E
4432 CC_O=$CC_O
4433 CXX_C=$CXX_C
4434 CXX_O=$CXX_O
4435 LD_O=$LD_O
4436 LD_LIB=$LD_LIB
4437 LD_PATH=$LD_PATH
4438 DLLTOOL=$dlltool
4439 LDFLAGS=$LDFLAGS
4440 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4441 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4442 YASMFLAGS=$YASMFLAGS
4443 BUILDSUF=$build_suffix
4444 PROGSSUF=$progs_suffix
4445 FULLNAME=$FULLNAME
4446 LIBPREF=$LIBPREF
4447 LIBSUF=$LIBSUF
4448 LIBNAME=$LIBNAME
4449 SLIBPREF=$SLIBPREF
4450 SLIBSUF=$SLIBSUF
4451 EXESUF=$EXESUF
4452 EXTRA_VERSION=$extra_version
4453 CCDEP=$CCDEP
4454 CXXDEP=$CXXDEP
4455 CCDEP_FLAGS=$CCDEP_FLAGS
4456 ASDEP=$ASDEP
4457 ASDEP_FLAGS=$ASDEP_FLAGS
4458 CC_DEPFLAGS=$CC_DEPFLAGS
4459 AS_DEPFLAGS=$AS_DEPFLAGS
4460 HOSTCC=$host_cc
4461 HOSTLD=$host_ld
4462 HOSTCFLAGS=$host_cflags
4463 HOSTCPPFLAGS=$host_cppflags
4464 HOSTEXESUF=$HOSTEXESUF
4465 HOSTLDFLAGS=$host_ldflags
4466 HOSTLIBS=$host_libs
4467 DEPHOSTCC=$host_cc
4468 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4469 HOSTCCDEP=$HOSTCCDEP
4470 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4471 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4472 HOSTCC_C=$HOSTCC_C
4473 HOSTCC_O=$HOSTCC_O
4474 HOSTLD_O=$HOSTLD_O
4475 TARGET_EXEC=$target_exec
4476 TARGET_PATH=$target_path
4477 LIBS-ffplay=$sdl_libs
4478 CFLAGS-ffplay=$sdl_cflags
4479 ZLIB=$($ldflags_filter -lz)
4480 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4481 EXTRALIBS=$extralibs
4482 COMPAT_OBJS=$compat_objs
4483 EXEOBJS=$exeobjs
4484 INSTALL=$install
4485 LIBTARGET=${LIBTARGET}
4486 SLIBNAME=${SLIBNAME}
4487 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4488 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4489 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4490 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4491 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4492 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4493 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4494 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4495 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4496 NOREDZONE_FLAGS=$noredzone_flags
4497 EOF
4498
4499 get_version(){
4500     lcname=lib${1}
4501     name=$(toupper $lcname)
4502     file=$source_path/$lcname/version.h
4503     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4504     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4505     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4506     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4507     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4508 }
4509
4510 map 'get_version $v' $LIBRARY_LIST
4511
4512 cat > $TMPH <<EOF
4513 /* Automatically generated by configure - do not modify! */
4514 #ifndef FFMPEG_CONFIG_H
4515 #define FFMPEG_CONFIG_H
4516 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4517 #define FFMPEG_LICENSE "$(c_escape $license)"
4518 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4519 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4520 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4521 #define av_restrict $_restrict
4522 #define EXTERN_PREFIX "${extern_prefix}"
4523 #define EXTERN_ASM ${extern_prefix}
4524 #define SLIBSUF "$SLIBSUF"
4525 #define HAVE_MMX2 HAVE_MMXEXT
4526 EOF
4527
4528 test -n "$assert_level" &&
4529     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4530
4531 test -n "$malloc_prefix" &&
4532     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4533
4534 if enabled yasm; then
4535     append config_files $TMPASM
4536     printf '' >$TMPASM
4537 fi
4538
4539 print_config ARCH_   "$config_files" $ARCH_LIST
4540 print_config HAVE_   "$config_files" $HAVE_LIST
4541 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4542                                      $CONFIG_EXTRA      \
4543                                      $ALL_COMPONENTS    \
4544
4545 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4546 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4547
4548 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4549 cp_if_changed $TMPH config.h
4550 touch .config
4551
4552 enabled yasm && cp_if_changed $TMPASM config.asm
4553
4554 cat > $TMPH <<EOF
4555 /* Generated by ffconf */
4556 #ifndef AVUTIL_AVCONFIG_H
4557 #define AVUTIL_AVCONFIG_H
4558 EOF
4559
4560 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4561
4562 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4563
4564 cp_if_changed $TMPH libavutil/avconfig.h
4565
4566 if test -n "$WARNINGS"; then
4567     printf "\n$WARNINGS"
4568     enabled fatal_warnings && exit 1
4569 fi
4570
4571 # build pkg-config files
4572
4573 pkgconfig_generate(){
4574     name=$1
4575     shortname=${name#lib}${build_suffix}
4576     comment=$2
4577     version=$3
4578     libs=$4
4579     requires=$5
4580     enabled ${name#lib} || return 0
4581     mkdir -p $name
4582     cat <<EOF > $name/$name${build_suffix}.pc
4583 prefix=$prefix
4584 exec_prefix=\${prefix}
4585 libdir=$libdir
4586 includedir=$incdir
4587
4588 Name: $name
4589 Description: $comment
4590 Version: $version
4591 Requires: $(enabled shared || echo $requires)
4592 Requires.private: $(enabled shared && echo $requires)
4593 Conflicts:
4594 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4595 Libs.private: $(enabled shared && echo $libs)
4596 Cflags: -I\${includedir}
4597 EOF
4598
4599 mkdir -p doc/examples/pc-uninstalled
4600 includedir=${source_path}
4601 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4602     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4603 prefix=
4604 exec_prefix=
4605 libdir=\${pcfiledir}/../../../$name
4606 includedir=${includedir}
4607
4608 Name: $name
4609 Description: $comment
4610 Version: $version
4611 Requires: $requires
4612 Conflicts:
4613 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4614 Cflags: -I\${includedir}
4615 EOF
4616 }
4617
4618 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4619 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4620 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4621 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4622 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4623 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4624 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4625 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4626
4627 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4628 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4629
4630 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4631 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4632 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4633 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4634 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4635 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4636 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4637 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4638 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4639
4640 fix_ffmpeg_remote(){
4641     git_remote_from=$1
4642     git_remote_to=$2
4643     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4644     if [ "$fixme_remote" != "" ]; then
4645         echolog "
4646 Outdated domain in git config, the official domain for ffmpeg git is since
4647 November 2011, source.ffmpeg.org, both the old and the new point to the same
4648 repository and server. To update it enter the following commands:
4649 "
4650         for remote in $fixme_remote; do
4651             echolog "git remote set-url $remote $git_remote_to"
4652         done
4653     fi
4654 }
4655
4656 if test -f "$source_path/.git/config"; then
4657     remote_from=git.videolan.org
4658     remote_to=source.ffmpeg.org
4659     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4660     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4661 fi