98cef1823c380c64aa0d148bff74e390399bda8c
[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 set_safe(){
460     var=$1
461     shift
462     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
463 }
464
465 get_safe(){
466     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
467 }
468
469 pushvar(){
470     for var in $*; do
471         eval level=\${${var}_level:=0}
472         eval ${var}_${level}="\$$var"
473         eval ${var}_level=$(($level+1))
474     done
475 }
476
477 popvar(){
478     for var in $*; do
479         eval level=\${${var}_level:-0}
480         test $level = 0 && continue
481         eval level=$(($level-1))
482         eval $var="\${${var}_${level}}"
483         eval ${var}_level=$level
484         eval unset ${var}_${level}
485     done
486 }
487
488 enable(){
489     set_all yes $*
490 }
491
492 disable(){
493     set_all no $*
494 }
495
496 enable_weak(){
497     set_weak yes $*
498 }
499
500 disable_weak(){
501     set_weak no $*
502 }
503
504 enable_safe(){
505     for var; do
506         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
507     done
508 }
509
510 disable_safe(){
511     for var; do
512         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
513     done
514 }
515
516 do_enable_deep(){
517     for var; do
518         enabled $var && continue
519         eval sel="\$${var}_select"
520         eval sgs="\$${var}_suggest"
521         pushvar var sgs
522         enable_deep $sel
523         popvar sgs
524         enable_deep_weak $sgs
525         popvar var
526     done
527 }
528
529 enable_deep(){
530     do_enable_deep $*
531     enable $*
532 }
533
534 enable_deep_weak(){
535     do_enable_deep $*
536     enable_weak $*
537 }
538
539 enabled(){
540     test "${1#!}" = "$1" && op== || op=!=
541     eval test "x\$${1#!}" $op "xyes"
542 }
543
544 disabled(){
545     test "${1#!}" = "$1" && op== || op=!=
546     eval test "x\$${1#!}" $op "xno"
547 }
548
549 enabled_all(){
550     for opt; do
551         enabled $opt || return 1
552     done
553 }
554
555 disabled_all(){
556     for opt; do
557         disabled $opt || return 1
558     done
559 }
560
561 enabled_any(){
562     for opt; do
563         enabled $opt && return 0
564     done
565 }
566
567 disabled_any(){
568     for opt; do
569         disabled $opt && return 0
570     done
571     return 1
572 }
573
574 set_default(){
575     for opt; do
576         eval : \${$opt:=\$${opt}_default}
577     done
578 }
579
580 is_in(){
581     value=$1
582     shift
583     for var in $*; do
584         [ $var = $value ] && return 0
585     done
586     return 1
587 }
588
589 do_check_deps(){
590     for cfg; do
591         cfg="${cfg#!}"
592         enabled ${cfg}_checking && die "Circular dependency for $cfg."
593         disabled ${cfg}_checking && continue
594         enable ${cfg}_checking
595         append allopts $cfg
596
597         eval dep_all="\$${cfg}_deps"
598         eval dep_any="\$${cfg}_deps_any"
599         eval dep_sel="\$${cfg}_select"
600         eval dep_sgs="\$${cfg}_suggest"
601         eval dep_ifa="\$${cfg}_if"
602         eval dep_ifn="\$${cfg}_if_any"
603
604         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
605         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
606         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
607
608         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
609         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
610         enabled_all  $dep_all || disable $cfg
611         enabled_any  $dep_any || disable $cfg
612         disabled_any $dep_sel && disable $cfg
613
614         if enabled $cfg; then
615             enable_deep $dep_sel
616             enable_deep_weak $dep_sgs
617         fi
618
619         disable ${cfg}_checking
620     done
621 }
622
623 check_deps(){
624     unset allopts
625
626     do_check_deps "$@"
627
628     for cfg in $allopts; do
629         enabled $cfg || continue
630         eval dep_extralibs="\$${cfg}_extralibs"
631         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
632     done
633 }
634
635 print_config(){
636     pfx=$1
637     files=$2
638     shift 2
639     map 'eval echo "$v \${$v:-no}"' "$@" |
640     awk "BEGIN { split(\"$files\", files) }
641         {
642             c = \"$pfx\" toupper(\$1);
643             v = \$2;
644             sub(/yes/, 1, v);
645             sub(/no/,  0, v);
646             for (f in files) {
647                 file = files[f];
648                 if (file ~ /\\.h\$/) {
649                     printf(\"#define %s %d\\n\", c, v) >>file;
650                 } else if (file ~ /\\.asm\$/) {
651                     printf(\"%%define %s %d\\n\", c, v) >>file;
652                 } else if (file ~ /\\.mak\$/) {
653                     n = -v ? \"\" : \"!\";
654                     printf(\"%s%s=yes\\n\", n, c) >>file;
655                 }
656             }
657         }"
658 }
659
660 print_enabled(){
661     suf=$1
662     shift
663     for v; do
664         enabled $v && printf "%s\n" ${v%$suf};
665     done
666 }
667
668 append(){
669     var=$1
670     shift
671     eval "$var=\"\$$var $*\""
672 }
673
674 prepend(){
675     var=$1
676     shift
677     eval "$var=\"$* \$$var\""
678 }
679
680 add_cppflags(){
681     append CPPFLAGS "$@"
682 }
683
684 add_cflags(){
685     append CFLAGS $($cflags_filter "$@")
686 }
687
688 add_cxxflags(){
689     append CXXFLAGS $($cflags_filter "$@")
690 }
691
692 add_asflags(){
693     append ASFLAGS $($asflags_filter "$@")
694 }
695
696 add_ldflags(){
697     append LDFLAGS $($ldflags_filter "$@")
698 }
699
700 add_extralibs(){
701     prepend extralibs $($ldflags_filter "$@")
702 }
703
704 add_host_cppflags(){
705     append host_cppflags "$@"
706 }
707
708 add_host_cflags(){
709     append host_cflags $($host_cflags_filter "$@")
710 }
711
712 add_host_ldflags(){
713     append host_ldflags $($host_ldflags_filter "$@")
714 }
715
716 add_compat(){
717     append compat_objs $1
718     shift
719     map 'add_cppflags -D$v' "$@"
720 }
721
722 check_cmd(){
723     log "$@"
724     "$@" >> $logfile 2>&1
725 }
726
727 cc_o(){
728     eval printf '%s\\n' $CC_O
729 }
730
731 cc_e(){
732     eval printf '%s\\n' $CC_E
733 }
734
735 check_cc(){
736     log check_cc "$@"
737     cat > $TMPC
738     log_file $TMPC
739     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
740 }
741
742 check_cxx(){
743     log check_cxx "$@"
744     cat > $TMPCPP
745     log_file $TMPCPP
746     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
747 }
748
749 check_cpp(){
750     log check_cpp "$@"
751     cat > $TMPC
752     log_file $TMPC
753     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
754 }
755
756 as_o(){
757     eval printf '%s\\n' $AS_O
758 }
759
760 check_as(){
761     log check_as "$@"
762     cat > $TMPS
763     log_file $TMPS
764     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
765 }
766
767 check_inline_asm(){
768     log check_inline_asm "$@"
769     name="$1"
770     code="$2"
771     shift 2
772     disable $name
773     check_cc "$@" <<EOF && enable $name
774 void foo(void){ __asm__ volatile($code); }
775 EOF
776 }
777
778 check_insn(){
779     log check_insn "$@"
780     check_inline_asm ${1}_inline "\"$2\""
781     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
782 }
783
784 check_yasm(){
785     log check_yasm "$@"
786     echo "$1" > $TMPS
787     log_file $TMPS
788     shift 1
789     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
790 }
791
792 ld_o(){
793     eval printf '%s\\n' $LD_O
794 }
795
796 check_ld(){
797     log check_ld "$@"
798     type=$1
799     shift 1
800     flags=$(filter_out '-l*|*.so' $@)
801     libs=$(filter '-l*|*.so' $@)
802     check_$type $($cflags_filter $flags) || return
803     flags=$($ldflags_filter $flags)
804     libs=$($ldflags_filter $libs)
805     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
806 }
807
808 check_code(){
809     log check_code "$@"
810     check=$1
811     headers=$2
812     code=$3
813     shift 3
814     {
815         for hdr in $headers; do
816             echo "#include <$hdr>"
817         done
818         echo "int main(void) { $code; return 0; }"
819     } | check_$check "$@"
820 }
821
822 check_cppflags(){
823     log check_cppflags "$@"
824     check_cc "$@" <<EOF && append CPPFLAGS "$@"
825 int x;
826 EOF
827 }
828
829 check_cflags(){
830     log check_cflags "$@"
831     set -- $($cflags_filter "$@")
832     check_cc "$@" <<EOF && append CFLAGS "$@"
833 int x;
834 EOF
835 }
836
837 check_cxxflags(){
838     log check_cxxflags "$@"
839     set -- $($cflags_filter "$@")
840     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
841 int x;
842 EOF
843 }
844
845 test_ldflags(){
846     log test_ldflags "$@"
847     check_ld "cc" "$@" <<EOF
848 int main(void){ return 0; }
849 EOF
850 }
851
852 check_ldflags(){
853     log check_ldflags "$@"
854     test_ldflags "$@" && add_ldflags "$@"
855 }
856
857 check_header(){
858     log check_header "$@"
859     header=$1
860     shift
861     disable_safe $header
862     check_cpp "$@" <<EOF && enable_safe $header
863 #include <$header>
864 int x;
865 EOF
866 }
867
868 check_func(){
869     log check_func "$@"
870     func=$1
871     shift
872     disable $func
873     check_ld "cc" "$@" <<EOF && enable $func
874 extern int $func();
875 int main(void){ $func(); }
876 EOF
877 }
878
879 check_mathfunc(){
880     log check_mathfunc "$@"
881     func=$1
882     narg=$2
883     shift 2
884     test $narg = 2 && args="f, g" || args="f"
885     disable $func
886     check_ld "cc" "$@" <<EOF && enable $func
887 #include <math.h>
888 float foo(float f, float g) { return $func($args); }
889 int main(void){ return (int) foo; }
890 EOF
891 }
892
893 check_func_headers(){
894     log check_func_headers "$@"
895     headers=$1
896     funcs=$2
897     shift 2
898     {
899         for hdr in $headers; do
900             echo "#include <$hdr>"
901         done
902         for func in $funcs; do
903             echo "long check_$func(void) { return (long) $func; }"
904         done
905         echo "int main(void) { return 0; }"
906     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
907 }
908
909 check_class_headers_cpp(){
910     log check_class_headers_cpp "$@"
911     headers=$1
912     classes=$2
913     shift 2
914     {
915         for hdr in $headers; do
916             echo "#include <$hdr>"
917         done
918         echo "int main(void) { "
919         i=1
920         for class in $classes; do
921             echo "$class obj$i;"
922             i=$(expr $i + 1)
923         done
924         echo "return 0; }"
925     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
926 }
927
928 check_cpp_condition(){
929     log check_cpp_condition "$@"
930     header=$1
931     condition=$2
932     shift 2
933     check_cpp "$@" <<EOF
934 #include <$header>
935 #if !($condition)
936 #error "unsatisfied condition: $condition"
937 #endif
938 EOF
939 }
940
941 check_lib(){
942     log check_lib "$@"
943     header="$1"
944     func="$2"
945     shift 2
946     check_header $header && check_func $func "$@" && add_extralibs "$@"
947 }
948
949 check_lib2(){
950     log check_lib2 "$@"
951     headers="$1"
952     funcs="$2"
953     shift 2
954     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
955 }
956
957 check_lib_cpp(){
958     log check_lib_cpp "$@"
959     headers="$1"
960     classes="$2"
961     shift 2
962     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
963 }
964
965 check_pkg_config(){
966     log check_pkg_config "$@"
967     pkg="$1"
968     headers="$2"
969     funcs="$3"
970     shift 3
971     $pkg_config --exists $pkg 2>/dev/null || return
972     pkg_cflags=$($pkg_config --cflags $pkg)
973     pkg_libs=$($pkg_config --libs $pkg)
974     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
975         set_safe ${pkg}_cflags $pkg_cflags   &&
976         set_safe ${pkg}_libs   $pkg_libs
977 }
978
979 check_exec(){
980     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
981 }
982
983 check_exec_crash(){
984     code=$(cat)
985
986     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
987     # are safe but may not be available everywhere.  Thus we use
988     # raise(SIGTERM) instead.  The check is run in a subshell so we
989     # can redirect the "Terminated" message from the shell.  SIGBUS
990     # is not defined by standard C so it is used conditionally.
991
992     (check_exec "$@") >> $logfile 2>&1 <<EOF
993 #include <signal.h>
994 static void sighandler(int sig){
995     raise(SIGTERM);
996 }
997 int func(void){
998     $code
999 }
1000 int (*func_ptr)(void) = func;
1001 int main(void){
1002     signal(SIGILL, sighandler);
1003     signal(SIGFPE, sighandler);
1004     signal(SIGSEGV, sighandler);
1005 #ifdef SIGBUS
1006     signal(SIGBUS, sighandler);
1007 #endif
1008     return func_ptr();
1009 }
1010 EOF
1011 }
1012
1013 check_type(){
1014     log check_type "$@"
1015     headers=$1
1016     type=$2
1017     shift 2
1018     disable_safe "$type"
1019     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1020 }
1021
1022 check_struct(){
1023     log check_type "$@"
1024     headers=$1
1025     struct=$2
1026     member=$3
1027     shift 3
1028     disable_safe "${struct}_${member}"
1029     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1030         enable_safe "${struct}_${member}"
1031 }
1032
1033 require(){
1034     name="$1"
1035     header="$2"
1036     func="$3"
1037     shift 3
1038     check_lib $header $func "$@" || die "ERROR: $name not found"
1039 }
1040
1041 require2(){
1042     name="$1"
1043     headers="$2"
1044     func="$3"
1045     shift 3
1046     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1047 }
1048
1049 require_cpp(){
1050     name="$1"
1051     headers="$2"
1052     classes="$3"
1053     shift 3
1054     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1055 }
1056
1057 require_pkg_config(){
1058     pkg="$1"
1059     check_pkg_config "$@" || die "ERROR: $pkg not found"
1060     add_cflags    $(get_safe ${pkg}_cflags)
1061     add_extralibs $(get_safe ${pkg}_libs)
1062 }
1063
1064 hostcc_o(){
1065     eval printf '%s\\n' $HOSTCC_O
1066 }
1067
1068 check_host_cc(){
1069     log check_host_cc "$@"
1070     cat > $TMPC
1071     log_file $TMPC
1072     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1073 }
1074
1075 check_host_cppflags(){
1076     log check_host_cppflags "$@"
1077     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1078 int x;
1079 EOF
1080 }
1081
1082 check_host_cflags(){
1083     log check_host_cflags "$@"
1084     set -- $($host_cflags_filter "$@")
1085     check_host_cc "$@" <<EOF && append host_cflags "$@"
1086 int x;
1087 EOF
1088 }
1089
1090 apply(){
1091     file=$1
1092     shift
1093     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1094 }
1095
1096 cp_if_changed(){
1097     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1098     mkdir -p "$(dirname $2)"
1099     $cp_f "$1" "$2"
1100 }
1101
1102 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1103 # system-dependent things.
1104
1105 COMPONENT_LIST="
1106     bsfs
1107     decoders
1108     demuxers
1109     encoders
1110     filters
1111     hwaccels
1112     indevs
1113     muxers
1114     outdevs
1115     parsers
1116     protocols
1117 "
1118
1119 EXTERNAL_LIBRARY_LIST="
1120     avisynth
1121     bzlib
1122     crystalhd
1123     fontconfig
1124     frei0r
1125     gnutls
1126     iconv
1127     libaacplus
1128     libass
1129     libbluray
1130     libcaca
1131     libcdio
1132     libcelt
1133     libdc1394
1134     libfaac
1135     libfdk_aac
1136     libflite
1137     libfreetype
1138     libgsm
1139     libiec61883
1140     libilbc
1141     libmodplug
1142     libmp3lame
1143     libnut
1144     libopencore_amrnb
1145     libopencore_amrwb
1146     libopencv
1147     libopenjpeg
1148     libopus
1149     libpulse
1150     librtmp
1151     libschroedinger
1152     libsoxr
1153     libspeex
1154     libstagefright_h264
1155     libtheora
1156     libtwolame
1157     libutvideo
1158     libv4l2
1159     libvo_aacenc
1160     libvo_amrwbenc
1161     libvorbis
1162     libvpx
1163     libx264
1164     libxavs
1165     libxvid
1166     openal
1167     openssl
1168     x11grab
1169     zlib
1170 "
1171
1172 DOCUMENT_LIST="
1173     doc
1174     htmlpages
1175     manpages
1176     podpages
1177     txtpages
1178 "
1179
1180 HWACCEL_LIST="
1181     dxva2
1182     vaapi
1183     vda
1184     vdpau
1185 "
1186
1187 LIBRARY_LIST="
1188     avcodec
1189     avdevice
1190     avfilter
1191     avformat
1192     avresample
1193     avutil
1194     postproc
1195     swresample
1196     swscale
1197 "
1198
1199 PROGRAM_LIST="
1200     ffplay
1201     ffprobe
1202     ffserver
1203     ffmpeg
1204 "
1205
1206 CONFIG_LIST="
1207     $COMPONENT_LIST
1208     $DOCUMENT_LIST
1209     $EXTERNAL_LIBRARY_LIST
1210     $HWACCEL_LIST
1211     $LIBRARY_LIST
1212     $PROGRAM_LIST
1213     dct
1214     dwt
1215     fast_unaligned
1216     fft
1217     ftrapv
1218     gpl
1219     gray
1220     hardcoded_tables
1221     incompatible_fork_abi
1222     lsp
1223     lzo
1224     mdct
1225     memalign_hack
1226     memory_poisoning
1227     network
1228     nonfree
1229     pic
1230     rdft
1231     runtime_cpudetect
1232     safe_bitstream_reader
1233     shared
1234     small
1235     sram
1236     static
1237     swscale_alpha
1238     thumb
1239     version3
1240     xmm_clobber_test
1241 "
1242
1243 THREADS_LIST='
1244     pthreads
1245     w32threads
1246     os2threads
1247 '
1248
1249 ARCH_LIST='
1250     aarch64
1251     alpha
1252     arm
1253     avr32
1254     avr32_ap
1255     avr32_uc
1256     bfin
1257     ia64
1258     m68k
1259     mips
1260     mips64
1261     parisc
1262     ppc
1263     ppc64
1264     s390
1265     sh4
1266     sparc
1267     sparc64
1268     tilegx
1269     tilepro
1270     tomi
1271     x86
1272     x86_32
1273     x86_64
1274 '
1275
1276 ARCH_EXT_LIST_ARM='
1277     armv5te
1278     armv6
1279     armv6t2
1280     neon
1281     vfp
1282     vfpv3
1283 '
1284
1285 ARCH_EXT_LIST_X86='
1286     amd3dnow
1287     amd3dnowext
1288     avx
1289     fma4
1290     mmx
1291     mmxext
1292     sse
1293     sse2
1294     sse3
1295     sse4
1296     sse42
1297     ssse3
1298 '
1299
1300 ARCH_EXT_LIST="
1301     $ARCH_EXT_LIST_ARM
1302     $ARCH_EXT_LIST_X86
1303     altivec
1304     ppc4xx
1305     vis
1306     mipsfpu
1307     mips32r2
1308     mipsdspr1
1309     mipsdspr2
1310 "
1311
1312 HAVE_LIST_CMDLINE='
1313     inline_asm
1314     symver
1315     yasm
1316 '
1317
1318 HAVE_LIST_PUB='
1319     bigendian
1320     fast_unaligned
1321     incompatible_fork_abi
1322 '
1323
1324 MATH_FUNCS="
1325     atanf
1326     atan2f
1327     cbrt
1328     cbrtf
1329     cosf
1330     exp2
1331     exp2f
1332     expf
1333     isinf
1334     isnan
1335     ldexpf
1336     llrint
1337     llrintf
1338     log2
1339     log2f
1340     log10f
1341     lrint
1342     lrintf
1343     powf
1344     rint
1345     round
1346     roundf
1347     sinf
1348     trunc
1349     truncf
1350 "
1351
1352 HAVE_LIST="
1353     $ARCH_EXT_LIST
1354     $(add_suffix _external $ARCH_EXT_LIST)
1355     $(add_suffix _inline   $ARCH_EXT_LIST)
1356     $HAVE_LIST_CMDLINE
1357     $HAVE_LIST_PUB
1358     $THREADS_LIST
1359     $MATH_FUNCS
1360     access
1361     aligned_malloc
1362     aligned_stack
1363     alsa_asoundlib_h
1364     altivec_h
1365     arpa_inet_h
1366     asm_mod_q
1367     asm_mod_y
1368     asm_types_h
1369     attribute_may_alias
1370     attribute_packed
1371     cdio_paranoia_h
1372     cdio_paranoia_paranoia_h
1373     clock_gettime
1374     closesocket
1375     cmov
1376     CommandLineToArgvW
1377     cpunop
1378     CryptGenRandom
1379     dcbzl
1380     dev_bktr_ioctl_bt848_h
1381     dev_bktr_ioctl_meteor_h
1382     dev_ic_bt8xx_h
1383     dev_video_bktr_ioctl_bt848_h
1384     dev_video_meteor_ioctl_meteor_h
1385     direct_h
1386     dlfcn_h
1387     dlopen
1388     dos_paths
1389     dxva_h
1390     ebp_available
1391     ebx_available
1392     fast_64bit
1393     fast_clz
1394     fast_cmov
1395     fcntl
1396     fork
1397     getaddrinfo
1398     gethrtime
1399     getopt
1400     GetProcessAffinityMask
1401     GetProcessMemoryInfo
1402     GetProcessTimes
1403     GetSystemTimeAsFileTime
1404     getrusage
1405     getservbyport
1406     gettimeofday
1407     glob
1408     gnu_as
1409     gsm_h
1410     ibm_asm
1411     inet_aton
1412     io_h
1413     isatty
1414     jack_port_get_latency_range
1415     kbhit
1416     ldbrx
1417     libdc1394_1
1418     libdc1394_2
1419     local_aligned_16
1420     local_aligned_8
1421     localtime_r
1422     loongson
1423     lzo1x_999_compress
1424     machine_ioctl_bt848_h
1425     machine_ioctl_meteor_h
1426     makeinfo
1427     malloc_h
1428     MapViewOfFile
1429     memalign
1430     mkstemp
1431     mm_empty
1432     mmap
1433     mprotect
1434     msvcrt
1435     nanosleep
1436     openjpeg_1_5_openjpeg_h
1437     PeekNamedPipe
1438     perl
1439     pod2man
1440     poll_h
1441     posix_memalign
1442     pthread_cancel
1443     rdtsc
1444     rsync_contimeout
1445     sched_getaffinity
1446     sdl
1447     sdl_video_size
1448     SetConsoleTextAttribute
1449     setmode
1450     setrlimit
1451     Sleep
1452     sndio_h
1453     socklen_t
1454     soundcard_h
1455     strerror_r
1456     struct_addrinfo
1457     struct_group_source_req
1458     struct_ip_mreq_source
1459     struct_ipv6_mreq
1460     struct_pollfd
1461     struct_rusage_ru_maxrss
1462     struct_sctp_event_subscribe
1463     struct_sockaddr_in6
1464     struct_sockaddr_sa_len
1465     struct_sockaddr_storage
1466     struct_v4l2_frmivalenum_discrete
1467     symver_asm_label
1468     symver_gnu_asm
1469     sysconf
1470     sysctl
1471     sys_mman_h
1472     sys_param_h
1473     sys_resource_h
1474     sys_select_h
1475     sys_soundcard_h
1476     sys_time_h
1477     sys_videoio_h
1478     termios_h
1479     texi2html
1480     threads
1481     unistd_h
1482     usleep
1483     vfp_args
1484     VirtualAlloc
1485     windows_h
1486     winsock2_h
1487     xform_asm
1488     xmm_clobbers
1489 "
1490
1491 # options emitted with CONFIG_ prefix but not available on the command line
1492 CONFIG_EXTRA="
1493     aandcttables
1494     ac3dsp
1495     audio_frame_queue
1496     error_resilience
1497     gcrypt
1498     golomb
1499     gplv3
1500     h264chroma
1501     h264dsp
1502     h264pred
1503     h264qpel
1504     huffman
1505     lgplv3
1506     lpc
1507     mpegaudio
1508     mpegaudiodsp
1509     mpegvideo
1510     mpegvideoenc
1511     nettle
1512     rangecoder
1513     rtpdec
1514     rtpenc_chain
1515     sinewin
1516     videodsp
1517     vp3dsp
1518 "
1519
1520 CMDLINE_SELECT="
1521     $ARCH_EXT_LIST
1522     $CONFIG_LIST
1523     $HAVE_LIST_CMDLINE
1524     $THREADS_LIST
1525     asm
1526     coverage
1527     cross_compile
1528     debug
1529     extra_warnings
1530     logging
1531     lto
1532     optimizations
1533     stripping
1534 "
1535
1536 PATHS_LIST='
1537     bindir
1538     datadir
1539     incdir
1540     libdir
1541     mandir
1542     prefix
1543     shlibdir
1544 '
1545
1546 CMDLINE_SET="
1547     $PATHS_LIST
1548     ar
1549     arch
1550     as
1551     assert_level
1552     build_suffix
1553     cc
1554     cpu
1555     cross_prefix
1556     cxx
1557     dep_cc
1558     extra_version
1559     host_cc
1560     host_cflags
1561     host_ld
1562     host_ldflags
1563     host_libs
1564     host_os
1565     install
1566     ld
1567     logfile
1568     malloc_prefix
1569     nm
1570     optflags
1571     pkg_config
1572     progs_suffix
1573     random_seed
1574     samples
1575     strip
1576     sysinclude
1577     sysroot
1578     target_exec
1579     target_os
1580     target_path
1581     toolchain
1582     valgrind
1583     yasmexe
1584 "
1585
1586 CMDLINE_APPEND="
1587     extra_cflags
1588     extra_cxxflags
1589     host_cppflags
1590 "
1591
1592 # code dependency declarations
1593
1594 # architecture extensions
1595
1596 armv5te_deps="arm"
1597 armv6_deps="arm"
1598 armv6t2_deps="arm"
1599 neon_deps="arm"
1600 vfp_deps="arm"
1601 vfpv3_deps="vfp"
1602
1603 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1604
1605 mipsfpu_deps="mips"
1606 mips32r2_deps="mips"
1607 mipsdspr1_deps="mips"
1608 mipsdspr2_deps="mips"
1609
1610 altivec_deps="ppc"
1611 ppc4xx_deps="ppc"
1612
1613 vis_deps="sparc"
1614
1615 x86_64_suggest="cmov fast_cmov"
1616
1617 amd3dnow_deps="mmx"
1618 amd3dnowext_deps="amd3dnow"
1619 mmx_deps="x86"
1620 mmxext_deps="mmx"
1621 sse_deps="mmxext"
1622 sse2_deps="sse"
1623 sse3_deps="sse2"
1624 ssse3_deps="sse3"
1625 sse4_deps="ssse3"
1626 sse42_deps="sse4"
1627 avx_deps="sse42"
1628 fma4_deps="avx"
1629
1630 mmx_external_deps="yasm"
1631 mmx_inline_deps="inline_asm"
1632 mmx_suggest="mmx_external mmx_inline"
1633
1634 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1635     eval dep=\$${ext}_deps
1636     eval ${ext}_external_deps='"${dep}_external"'
1637     eval ${ext}_inline_deps='"${dep}_inline"'
1638     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1639 done
1640
1641 aligned_stack_if_any="ppc x86"
1642 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1643 fast_clz_if_any="alpha avr32 mips ppc x86"
1644 fast_unaligned_if_any="ppc x86"
1645
1646 inline_asm_deps="!tms470"
1647 need_memalign="altivec neon sse"
1648
1649 symver_if_any="symver_asm_label symver_gnu_asm"
1650
1651 log2_deps="!msvcrt"
1652
1653 # subsystems
1654 dct_select="rdft"
1655 mdct_select="fft"
1656 rdft_select="fft"
1657 mpegaudio_select="mpegaudiodsp"
1658 mpegaudiodsp_select="dct"
1659 mpegvideo_select="error_resilience videodsp"
1660 mpegvideoenc_select="mpegvideo"
1661
1662 # decoders / encoders
1663 aac_decoder_select="mdct sinewin"
1664 aac_encoder_select="audio_frame_queue mdct sinewin"
1665 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1666 ac3_decoder_select="mdct ac3dsp ac3_parser"
1667 ac3_encoder_select="mdct ac3dsp"
1668 ac3_fixed_encoder_select="mdct ac3dsp"
1669 alac_encoder_select="lpc"
1670 amrnb_decoder_select="lsp"
1671 amrwb_decoder_select="lsp"
1672 amv_encoder_select="aandcttables"
1673 atrac1_decoder_select="mdct sinewin"
1674 atrac3_decoder_select="mdct"
1675 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1676 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1677 cavs_decoder_select="golomb mpegvideo"
1678 comfortnoise_encoder_select="lpc"
1679 cook_decoder_select="mdct sinewin"
1680 cscd_decoder_select="lzo"
1681 cscd_decoder_suggest="zlib"
1682 dca_decoder_select="mdct"
1683 dirac_decoder_select="dwt golomb videodsp"
1684 dnxhd_encoder_select="aandcttables mpegvideoenc"
1685 dxa_decoder_select="zlib"
1686 eac3_decoder_select="ac3_decoder"
1687 eac3_encoder_select="ac3_encoder"
1688 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1689 eatgq_decoder_select="aandcttables"
1690 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1691 exr_decoder_select="zlib"
1692 ffv1_decoder_select="golomb rangecoder"
1693 ffv1_encoder_select="rangecoder"
1694 ffvhuff_encoder_select="huffman"
1695 flac_decoder_select="golomb"
1696 flac_encoder_select="golomb lpc"
1697 flashsv_decoder_select="zlib"
1698 flashsv_encoder_select="zlib"
1699 flashsv2_encoder_select="zlib"
1700 flashsv2_decoder_select="zlib"
1701 flv_decoder_select="h263_decoder"
1702 flv_encoder_select="h263_encoder"
1703 fraps_decoder_select="huffman"
1704 h261_decoder_select="error_resilience mpegvideo"
1705 h261_encoder_select="aandcttables mpegvideoenc"
1706 h263_decoder_select="error_resilience h263_parser mpegvideo"
1707 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1708 h263i_decoder_select="h263_decoder"
1709 h263p_encoder_select="h263_encoder"
1710 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1711 huffyuv_encoder_select="huffman"
1712 iac_decoder_select="fft mdct sinewin"
1713 imc_decoder_select="fft mdct sinewin"
1714 jpegls_decoder_select="golomb"
1715 jpegls_encoder_select="golomb"
1716 ljpeg_encoder_select="aandcttables mpegvideoenc"
1717 loco_decoder_select="golomb"
1718 mdec_decoder_select="error_resilience mpegvideo"
1719 mjpeg_encoder_select="aandcttables mpegvideoenc"
1720 mlp_decoder_select="mlp_parser"
1721 mp1_decoder_select="mpegaudio"
1722 mp1float_decoder_select="mpegaudio"
1723 mp2_decoder_select="mpegaudio"
1724 mp2float_decoder_select="mpegaudio"
1725 mp3_decoder_select="mpegaudio"
1726 mp3adu_decoder_select="mpegaudio"
1727 mp3adufloat_decoder_select="mpegaudio"
1728 mp3float_decoder_select="mpegaudio"
1729 mp3on4_decoder_select="mpegaudio"
1730 mp3on4float_decoder_select="mpegaudio"
1731 mpc7_decoder_select="mpegaudiodsp"
1732 mpc8_decoder_select="mpegaudiodsp"
1733 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1734 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1735 mpeg1video_decoder_select="error_resilience mpegvideo"
1736 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1737 mpeg2video_decoder_select="error_resilience mpegvideo"
1738 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1739 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1740 mpeg4_encoder_select="h263_encoder"
1741 msmpeg4v1_decoder_select="h263_decoder"
1742 msmpeg4v1_encoder_select="h263_encoder"
1743 msmpeg4v2_decoder_select="h263_decoder"
1744 msmpeg4v2_encoder_select="h263_encoder"
1745 msmpeg4v3_decoder_select="h263_decoder"
1746 msmpeg4v3_encoder_select="h263_encoder"
1747 mss2_decoder_select="vc1_decoder"
1748 nellymoser_decoder_select="mdct sinewin"
1749 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1750 nuv_decoder_select="lzo"
1751 png_decoder_select="zlib"
1752 png_encoder_select="zlib"
1753 qcelp_decoder_select="lsp"
1754 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1755 ra_144_encoder_select="audio_frame_queue lpc"
1756 ralf_decoder_select="golomb"
1757 rv10_decoder_select="h263_decoder"
1758 rv10_encoder_select="h263_encoder"
1759 rv20_decoder_select="h263_decoder"
1760 rv20_encoder_select="h263_encoder"
1761 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1762 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1763 shorten_decoder_select="golomb"
1764 sipr_decoder_select="lsp"
1765 snow_decoder_select="dwt rangecoder"
1766 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1767 sonic_decoder_select="golomb"
1768 sonic_encoder_select="golomb"
1769 sonic_ls_encoder_select="golomb"
1770 svq1_decoder_select="error_resilience mpegvideo"
1771 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1772 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1773 svq3_decoder_suggest="zlib"
1774 theora_decoder_select="vp3_decoder"
1775 tiff_decoder_suggest="zlib"
1776 tiff_encoder_suggest="zlib"
1777 truehd_decoder_select="mlp_parser"
1778 tscc_decoder_select="zlib"
1779 twinvq_decoder_select="mdct lsp sinewin"
1780 utvideo_encoder_select="huffman"
1781 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1782 vc1image_decoder_select="vc1_decoder"
1783 vorbis_decoder_select="mdct"
1784 vorbis_encoder_select="mdct"
1785 vp3_decoder_select="vp3dsp videodsp"
1786 vp5_decoder_select="vp3dsp videodsp"
1787 vp6_decoder_select="huffman vp3dsp videodsp"
1788 vp6a_decoder_select="vp6_decoder"
1789 vp6f_decoder_select="vp6_decoder"
1790 vp8_decoder_select="h264pred videodsp"
1791 wmapro_decoder_select="mdct sinewin"
1792 wmav1_decoder_select="mdct sinewin"
1793 wmav1_encoder_select="mdct sinewin"
1794 wmav2_decoder_select="mdct sinewin"
1795 wmav2_encoder_select="mdct sinewin"
1796 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1797 wmv1_decoder_select="h263_decoder"
1798 wmv1_encoder_select="h263_encoder"
1799 wmv2_decoder_select="h263_decoder"
1800 wmv2_encoder_select="h263_encoder"
1801 wmv3_decoder_select="vc1_decoder"
1802 wmv3image_decoder_select="wmv3_decoder"
1803 zerocodec_decoder_select="zlib"
1804 zlib_decoder_select="zlib"
1805 zlib_encoder_select="zlib"
1806 zmbv_decoder_select="zlib"
1807 zmbv_encoder_select="zlib"
1808
1809 # hardware accelerators
1810 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1811 dxva2_deps="dxva2api_h"
1812 vaapi_deps="va_va_h"
1813 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1814 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1815 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1816
1817 h263_vaapi_hwaccel_deps="vaapi"
1818 h263_vaapi_hwaccel_select="h263_decoder"
1819 h263_vdpau_hwaccel_deps="vdpau"
1820 h263_vdpau_hwaccel_select="h263_decoder"
1821 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1822 h264_dxva2_hwaccel_deps="dxva2"
1823 h264_dxva2_hwaccel_select="h264_decoder"
1824 h264_vaapi_hwaccel_deps="vaapi"
1825 h264_vaapi_hwaccel_select="h264_decoder"
1826 h264_vda_decoder_deps="vda"
1827 h264_vda_decoder_select="h264_decoder"
1828 h264_vda_hwaccel_deps="vda"
1829 h264_vda_hwaccel_select="h264_decoder"
1830 h264_vdpau_decoder_deps="vdpau"
1831 h264_vdpau_decoder_select="h264_decoder"
1832 h264_vdpau_hwaccel_deps="vdpau"
1833 h264_vdpau_hwaccel_select="h264_decoder"
1834 mpeg_vdpau_decoder_deps="vdpau"
1835 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1836 mpeg1_vdpau_decoder_deps="vdpau"
1837 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1838 mpeg1_vdpau_hwaccel_deps="vdpau"
1839 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1840 mpeg2_crystalhd_decoder_select="crystalhd"
1841 mpeg2_dxva2_hwaccel_deps="dxva2"
1842 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1843 mpeg2_vaapi_hwaccel_deps="vaapi"
1844 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1845 mpeg2_vdpau_hwaccel_deps="vdpau"
1846 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1847 mpeg4_crystalhd_decoder_select="crystalhd"
1848 mpeg4_vaapi_hwaccel_deps="vaapi"
1849 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1850 mpeg4_vdpau_decoder_deps="vdpau"
1851 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1852 mpeg4_vdpau_hwaccel_deps="vdpau"
1853 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1854 msmpeg4_crystalhd_decoder_select="crystalhd"
1855 vc1_crystalhd_decoder_select="crystalhd"
1856 vc1_dxva2_hwaccel_deps="dxva2"
1857 vc1_dxva2_hwaccel_select="vc1_decoder"
1858 vc1_vaapi_hwaccel_deps="vaapi"
1859 vc1_vaapi_hwaccel_select="vc1_decoder"
1860 vc1_vdpau_decoder_deps="vdpau"
1861 vc1_vdpau_decoder_select="vc1_decoder"
1862 vc1_vdpau_hwaccel_deps="vdpau"
1863 vc1_vdpau_hwaccel_select="vc1_decoder"
1864 wmv3_crystalhd_decoder_select="crystalhd"
1865 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1866 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1867 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1868 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1869
1870 # parsers
1871 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1872 mpeg4video_parser_select="error_resilience mpegvideo"
1873 mpegvideo_parser_select="error_resilience mpegvideo"
1874 vc1_parser_select="error_resilience mpegvideo"
1875
1876 # external libraries
1877 libaacplus_encoder_deps="libaacplus"
1878 libcelt_decoder_deps="libcelt"
1879 libfaac_encoder_deps="libfaac"
1880 libfaac_encoder_select="audio_frame_queue"
1881 libfdk_aac_encoder_deps="libfdk_aac"
1882 libfdk_aac_encoder_select="audio_frame_queue"
1883 libgsm_decoder_deps="libgsm"
1884 libgsm_encoder_deps="libgsm"
1885 libgsm_ms_decoder_deps="libgsm"
1886 libgsm_ms_encoder_deps="libgsm"
1887 libilbc_decoder_deps="libilbc"
1888 libilbc_encoder_deps="libilbc"
1889 libmodplug_demuxer_deps="libmodplug"
1890 libmp3lame_encoder_deps="libmp3lame"
1891 libmp3lame_encoder_select="audio_frame_queue"
1892 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1893 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1894 libopencore_amrnb_encoder_select="audio_frame_queue"
1895 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1896 libopenjpeg_decoder_deps="libopenjpeg"
1897 libopenjpeg_encoder_deps="libopenjpeg"
1898 libopus_decoder_deps="libopus"
1899 libopus_encoder_deps="libopus"
1900 libopus_encoder_select="audio_frame_queue"
1901 libschroedinger_decoder_deps="libschroedinger"
1902 libschroedinger_encoder_deps="libschroedinger"
1903 libspeex_decoder_deps="libspeex"
1904 libspeex_encoder_deps="libspeex"
1905 libspeex_encoder_select="audio_frame_queue"
1906 libstagefright_h264_decoder_deps="libstagefright_h264"
1907 libtheora_encoder_deps="libtheora"
1908 libtwolame_encoder_deps="libtwolame"
1909 libvo_aacenc_encoder_deps="libvo_aacenc"
1910 libvo_aacenc_encoder_select="audio_frame_queue"
1911 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1912 libvorbis_decoder_deps="libvorbis"
1913 libvorbis_encoder_deps="libvorbis"
1914 libvorbis_encoder_select="audio_frame_queue"
1915 libvpx_vp8_decoder_deps="libvpx"
1916 libvpx_vp8_encoder_deps="libvpx"
1917 libvpx_vp9_decoder_deps="libvpx"
1918 libvpx_vp9_encoder_deps="libvpx"
1919 libx264_encoder_deps="libx264"
1920 libx264rgb_encoder_deps="libx264"
1921 libxavs_encoder_deps="libxavs"
1922 libxvid_encoder_deps="libxvid"
1923 libutvideo_decoder_deps="libutvideo"
1924 libutvideo_encoder_deps="libutvideo"
1925
1926 # demuxers / muxers
1927 ac3_demuxer_select="ac3_parser"
1928 asf_stream_muxer_select="asf_muxer"
1929 avisynth_demuxer_deps="avisynth"
1930 dirac_demuxer_select="dirac_parser"
1931 dts_demuxer_select="dca_parser"
1932 dtshd_demuxer_select="dca_parser"
1933 eac3_demuxer_select="ac3_parser"
1934 f4v_muxer_select="mov_muxer"
1935 flac_demuxer_select="flac_parser"
1936 ipod_muxer_select="mov_muxer"
1937 ismv_muxer_select="mov_muxer"
1938 libnut_demuxer_deps="libnut"
1939 libnut_muxer_deps="libnut"
1940 matroska_audio_muxer_select="matroska_muxer"
1941 matroska_demuxer_suggest="bzlib lzo zlib"
1942 mov_demuxer_suggest="zlib"
1943 mov_muxer_select="rtpenc_chain"
1944 mp3_demuxer_select="mpegaudio_parser"
1945 mp4_muxer_select="mov_muxer"
1946 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1947 mpegtsraw_demuxer_select="mpegts_demuxer"
1948 mxf_d10_muxer_select="mxf_muxer"
1949 ogg_demuxer_select="golomb"
1950 psp_muxer_select="mov_muxer"
1951 rtp_demuxer_select="sdp_demuxer"
1952 rtp_muxer_select="mpegvideo"
1953 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1954 rtsp_demuxer_select="http_protocol rtpdec"
1955 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1956 sap_demuxer_select="sdp_demuxer"
1957 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1958 sdp_demuxer_select="rtpdec"
1959 smoothstreaming_muxer_select="ismv_muxer"
1960 spdif_muxer_select="aac_parser"
1961 tak_demuxer_select="tak_parser"
1962 tg2_muxer_select="mov_muxer"
1963 tgp_muxer_select="mov_muxer"
1964 vobsub_demuxer_select="mpegps_demuxer"
1965 w64_demuxer_deps="wav_demuxer"
1966 w64_muxer_deps="wav_muxer"
1967
1968 # indevs / outdevs
1969 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1970 alsa_outdev_deps="alsa_asoundlib_h"
1971 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1972 caca_outdev_deps="libcaca"
1973 dshow_indev_deps="IBaseFilter"
1974 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1975 dv1394_indev_deps="dv1394 dv_demuxer"
1976 fbdev_indev_deps="linux_fb_h"
1977 iec61883_indev_deps="libiec61883"
1978 jack_indev_deps="jack_jack_h sem_timedwait"
1979 lavfi_indev_deps="avfilter"
1980 libcdio_indev_deps="libcdio"
1981 libdc1394_indev_deps="libdc1394"
1982 libv4l2_indev_deps="libv4l2"
1983 openal_indev_deps="openal"
1984 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1985 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1986 pulse_indev_deps="libpulse"
1987 sdl_outdev_deps="sdl"
1988 sndio_indev_deps="sndio_h"
1989 sndio_outdev_deps="sndio_h"
1990 v4l_indev_deps="linux_videodev_h"
1991 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1992 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1993 vfwcap_indev_extralibs="-lavicap32"
1994 x11grab_indev_deps="x11grab"
1995
1996 # protocols
1997 bluray_protocol_deps="libbluray"
1998 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1999 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2000 ffrtmpcrypt_protocol_select="tcp_protocol"
2001 ffrtmphttp_protocol_deps="!librtmp_protocol"
2002 ffrtmphttp_protocol_select="http_protocol"
2003 gopher_protocol_select="network"
2004 httpproxy_protocol_select="tcp_protocol"
2005 http_protocol_select="tcp_protocol"
2006 https_protocol_select="tls_protocol"
2007 librtmp_protocol_deps="librtmp"
2008 librtmpe_protocol_deps="librtmp"
2009 librtmps_protocol_deps="librtmp"
2010 librtmpt_protocol_deps="librtmp"
2011 librtmpte_protocol_deps="librtmp"
2012 mmsh_protocol_select="http_protocol"
2013 mmst_protocol_select="network"
2014 rtmp_protocol_deps="!librtmp_protocol"
2015 rtmp_protocol_select="tcp_protocol"
2016 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2017 rtmps_protocol_deps="!librtmp_protocol"
2018 rtmps_protocol_select="tls_protocol"
2019 rtmpt_protocol_select="ffrtmphttp_protocol"
2020 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2021 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2022 rtp_protocol_select="udp_protocol"
2023 sctp_protocol_deps="struct_sctp_event_subscribe"
2024 sctp_protocol_select="network"
2025 srtp_protocol_select="rtp_protocol"
2026 tcp_protocol_select="network"
2027 tls_protocol_deps_any="openssl gnutls"
2028 tls_protocol_select="tcp_protocol"
2029 udp_protocol_select="network"
2030
2031 # filters
2032 aconvert_filter_deps="swresample"
2033 amovie_filter_deps="avcodec avformat"
2034 aresample_filter_deps="swresample"
2035 ass_filter_deps="libass"
2036 asyncts_filter_deps="avresample"
2037 atempo_filter_deps="avcodec rdft"
2038 blackframe_filter_deps="gpl"
2039 boxblur_filter_deps="gpl"
2040 colormatrix_filter_deps="gpl"
2041 cropdetect_filter_deps="gpl"
2042 decimate_filter_deps="gpl avcodec"
2043 delogo_filter_deps="gpl"
2044 deshake_filter_deps="avcodec"
2045 drawtext_filter_deps="libfreetype"
2046 ebur128_filter_deps="gpl"
2047 flite_filter_deps="libflite"
2048 frei0r_filter_deps="frei0r dlopen"
2049 frei0r_filter_extralibs='$ldl'
2050 frei0r_src_filter_deps="frei0r dlopen"
2051 frei0r_src_filter_extralibs='$ldl'
2052 geq_filter_deps="gpl"
2053 histeq_filter_deps="gpl"
2054 hqdn3d_filter_deps="gpl"
2055 hue_filter_deps="gpl"
2056 kerndeint_filter_deps="gpl"
2057 movie_filter_deps="avcodec avformat"
2058 mp_filter_deps="gpl avcodec swscale inline_asm"
2059 mptestsrc_filter_deps="gpl"
2060 negate_filter_deps="lut_filter"
2061 noise_filter_deps="gpl"
2062 resample_filter_deps="avresample"
2063 ocv_filter_deps="libopencv"
2064 pan_filter_deps="swresample"
2065 pp_filter_deps="gpl postproc"
2066 removelogo_filter_deps="avcodec avformat swscale"
2067 scale_filter_deps="swscale"
2068 smartblur_filter_deps="gpl swscale"
2069 showspectrum_filter_deps="avcodec rdft"
2070 subtitles_filter_deps="avformat avcodec libass"
2071 super2xsai_filter_deps="gpl"
2072 tinterlace_filter_deps="gpl"
2073 yadif_filter_deps="gpl"
2074 pixfmts_super2xsai_test_deps="super2xsai_filter"
2075 tinterlace_merge_test_deps="tinterlace_filter"
2076 tinterlace_pad_test_deps="tinterlace_filter"
2077
2078 # libraries
2079 avcodec_deps="avutil"
2080 avdevice_deps="avutil avcodec avformat"
2081 avfilter_deps="avutil"
2082 avformat_deps="avutil avcodec"
2083 avresample_deps="avutil"
2084 postproc_deps="avutil gpl"
2085 swscale_deps="avutil"
2086
2087 # programs
2088 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2089 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2090                setpts_filter null_filter anull_filter ffabuffersink_filter"
2091 ffplay_deps="avcodec avformat swscale swresample sdl"
2092 ffplay_select="ffbuffersink_filter rdft crop_filter"
2093 ffprobe_deps="avcodec avformat"
2094 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2095 ffserver_extralibs='$ldl'
2096
2097 # documentation
2098 podpages_deps="perl"
2099 manpages_deps="perl pod2man"
2100 htmlpages_deps="texi2html"
2101 txtpages_deps="makeinfo"
2102 doc_deps_any="manpages htmlpages podpages txtpages"
2103
2104 # default parameters
2105
2106 logfile="config.log"
2107
2108 # installation paths
2109 prefix_default="/usr/local"
2110 bindir_default='${prefix}/bin'
2111 datadir_default='${prefix}/share/ffmpeg'
2112 incdir_default='${prefix}/include'
2113 libdir_default='${prefix}/lib'
2114 mandir_default='${prefix}/share/man'
2115 shlibdir_default="$libdir_default"
2116
2117 # toolchain
2118 ar_default="ar"
2119 cc_default="gcc"
2120 cxx_default="g++"
2121 host_cc_default="gcc"
2122 cp_f="cp -f"
2123 install="install"
2124 ln_s="ln -s -f"
2125 nm_default="nm -g"
2126 objformat="elf"
2127 pkg_config_default=pkg-config
2128 ranlib="ranlib"
2129 strip_default="strip"
2130 yasmexe_default="yasm"
2131
2132 nogas=":"
2133
2134 # machine
2135 arch_default=$(uname -m)
2136 cpu="generic"
2137
2138 # OS
2139 target_os_default=$(tolower $(uname -s))
2140 host_os=$target_os_default
2141
2142 # configurable options
2143 enable $PROGRAM_LIST
2144 enable $DOCUMENT_LIST
2145 enable $(filter_out avresample $LIBRARY_LIST)
2146 enable stripping
2147
2148 enable asm
2149 enable debug
2150 enable doc
2151 enable optimizations
2152 enable runtime_cpudetect
2153 enable safe_bitstream_reader
2154 enable static
2155 enable swscale_alpha
2156
2157 # build settings
2158 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2159 FFSERVERLDFLAGS=-Wl,-E
2160 LIBPREF="lib"
2161 LIBSUF=".a"
2162 FULLNAME='$(NAME)$(BUILDSUF)'
2163 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2164 SLIBPREF="lib"
2165 SLIBSUF=".so"
2166 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2167 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2168 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2169 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2170 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2171 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2172
2173 asflags_filter=echo
2174 cflags_filter=echo
2175 ldflags_filter=echo
2176
2177 AS_C='-c'
2178 AS_O='-o $@'
2179 CC_C='-c'
2180 CC_E='-E -o $@'
2181 CC_O='-o $@'
2182 CXX_C='-c'
2183 CXX_O='-o $@'
2184 LD_O='-o $@'
2185 LD_LIB='-l%'
2186 LD_PATH='-L'
2187 HOSTCC_C='-c'
2188 HOSTCC_O='-o $@'
2189 HOSTLD_O='-o $@'
2190
2191 host_cflags='-O3 -g'
2192 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2193 host_libs='-lm'
2194 host_cflags_filter=echo
2195 host_ldflags_filter=echo
2196
2197 target_path='$(CURDIR)'
2198
2199 # since the object filename is not given with the -MM flag, the compiler
2200 # is only able to print the basename, and we must add the path ourselves
2201 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2202 DEPFLAGS='-MM'
2203
2204 # find source path
2205 if test -f configure; then
2206     source_path=.
2207 else
2208     source_path=$(cd $(dirname "$0"); pwd)
2209     echo "$source_path" | grep -q '[[:blank:]]' &&
2210         die "Out of tree builds are impossible with whitespace in source path."
2211     test -e "$source_path/config.h" &&
2212         die "Out of tree builds are impossible with config.h in source dir."
2213 fi
2214
2215 for v in "$@"; do
2216     r=${v#*=}
2217     l=${v%"$r"}
2218     r=$(sh_quote "$r")
2219     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2220 done
2221
2222 find_things(){
2223     thing=$1
2224     pattern=$2
2225     file=$source_path/$3
2226     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2227 }
2228
2229 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2230 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2231 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2232 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2233 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2234 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2235 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2236 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2237 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2238 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2239 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2240
2241 ALL_COMPONENTS="
2242     $BSF_LIST
2243     $DECODER_LIST
2244     $DEMUXER_LIST
2245     $ENCODER_LIST
2246     $FILTER_LIST
2247     $HWACCEL_LIST
2248     $INDEV_LIST
2249     $MUXER_LIST
2250     $OUTDEV_LIST
2251     $PARSER_LIST
2252     $PROTOCOL_LIST
2253 "
2254
2255 for n in $COMPONENT_LIST; do
2256     v=$(toupper ${n%s})_LIST
2257     eval enable \$$v
2258     eval ${n}_if_any="\$$v"
2259 done
2260
2261 enable $ARCH_EXT_LIST
2262
2263 die_unknown(){
2264     echo "Unknown option \"$1\"."
2265     echo "See $0 --help for available options."
2266     exit 1
2267 }
2268
2269 print_3_columns() {
2270     cat | tr ' ' '\n' | sort | pr -r -3 -t
2271 }
2272
2273 show_list() {
2274     suffix=_$1
2275     shift
2276     echo $* | sed s/$suffix//g | print_3_columns
2277     exit 0
2278 }
2279
2280 rand_list(){
2281     IFS=', '
2282     set -- $*
2283     unset IFS
2284     for thing; do
2285         comp=${thing%:*}
2286         prob=${thing#$comp}
2287         prob=${prob#:}
2288         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2289         echo "prob ${prob:-0.5}"
2290         printf '%s\n' $comp
2291     done
2292 }
2293
2294 do_random(){
2295     action=$1
2296     shift
2297     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2298     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2299 }
2300
2301 for opt do
2302     optval="${opt#*=}"
2303     case "$opt" in
2304         --extra-ldflags=*)
2305             add_ldflags $optval
2306         ;;
2307         --extra-libs=*)
2308             add_extralibs $optval
2309         ;;
2310         --disable-devices)
2311             disable $INDEV_LIST $OUTDEV_LIST
2312         ;;
2313         --enable-debug=*)
2314             debuglevel="$optval"
2315         ;;
2316         --disable-programs)
2317             disable $PROGRAM_LIST
2318         ;;
2319         --disable-everything)
2320             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2321         ;;
2322         --disable-all)
2323             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2324             disable $LIBRARY_LIST $PROGRAM_LIST doc
2325         ;;
2326         --enable-random|--disable-random)
2327             action=${opt%%-random}
2328             do_random ${action#--} $COMPONENT_LIST
2329         ;;
2330         --enable-random=*|--disable-random=*)
2331             action=${opt%%-random=*}
2332             do_random ${action#--} $optval
2333         ;;
2334         --enable-*=*|--disable-*=*)
2335             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2336             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2337             eval list=\$$(toupper $thing)_LIST
2338             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2339             list=$(filter "$name" $list)
2340             [ "$list" = "" ] && warn "Option $opt did not match anything"
2341             $action $list
2342         ;;
2343         --enable-?*|--disable-?*)
2344             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2345             if is_in $option $COMPONENT_LIST; then
2346                 test $action = disable && action=unset
2347                 eval $action \$$(toupper ${option%s})_LIST
2348             elif is_in $option $CMDLINE_SELECT; then
2349                 $action $option
2350             else
2351                 die_unknown $opt
2352             fi
2353         ;;
2354         --list-*)
2355             NAME="${opt#--list-}"
2356             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2357             NAME=${NAME%s}
2358             eval show_list $NAME \$$(toupper $NAME)_LIST
2359         ;;
2360         --help|-h) show_help
2361         ;;
2362         --fatal-warnings) enable fatal_warnings
2363         ;;
2364         *)
2365             optname="${opt%%=*}"
2366             optname="${optname#--}"
2367             optname=$(echo "$optname" | sed 's/-/_/g')
2368             if is_in $optname $CMDLINE_SET; then
2369                 eval $optname='$optval'
2370             elif is_in $optname $CMDLINE_APPEND; then
2371                 append $optname "$optval"
2372             else
2373                 die_unknown $opt
2374             fi
2375         ;;
2376     esac
2377 done
2378
2379 disabled logging && logfile=/dev/null
2380
2381 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2382 set >> $logfile
2383
2384 test -n "$cross_prefix" && enable cross_compile
2385
2386 if enabled cross_compile; then
2387     test -n "$arch" && test -n "$target_os" ||
2388         die "Must specify target arch and OS when cross-compiling"
2389 fi
2390
2391 ar_default="${cross_prefix}${ar_default}"
2392 cc_default="${cross_prefix}${cc_default}"
2393 cxx_default="${cross_prefix}${cxx_default}"
2394 nm_default="${cross_prefix}${nm_default}"
2395 pkg_config_default="${cross_prefix}${pkg_config_default}"
2396 ranlib="${cross_prefix}${ranlib}"
2397 strip_default="${cross_prefix}${strip_default}"
2398
2399 sysinclude_default="${sysroot}/usr/include"
2400
2401 case "$toolchain" in
2402     clang-asan)
2403         cc_default="clang"
2404         add_cflags  -faddress-sanitizer
2405         add_ldflags -faddress-sanitizer
2406     ;;
2407     clang-tsan)
2408         cc_default="clang"
2409         add_cflags  -fthread-sanitizer
2410         add_ldflags -fthread-sanitizer
2411     ;;
2412     msvc)
2413         cc_default="c99wrap cl"
2414         ld_default="c99wrap link"
2415         nm_default="dumpbin -symbols"
2416         ar_default="lib"
2417         target_os_default="win32"
2418     ;;
2419     ?*)
2420         die "Unknown toolchain $toolchain"
2421     ;;
2422 esac
2423
2424 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2425 enabled cross_compile || host_cc_default=$cc
2426 set_default host_cc
2427
2428 if ! $pkg_config --version >/dev/null 2>&1; then
2429     warn "$pkg_config not found, library detection may fail."
2430     pkg_config=false
2431 fi
2432
2433 exesuf() {
2434     case $1 in
2435         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2436     esac
2437 }
2438
2439 EXESUF=$(exesuf $target_os)
2440 HOSTEXESUF=$(exesuf $host_os)
2441
2442 # set temporary file name
2443 : ${TMPDIR:=$TEMPDIR}
2444 : ${TMPDIR:=$TMP}
2445 : ${TMPDIR:=/tmp}
2446
2447 if ! check_cmd mktemp -u XXXXXX; then
2448     # simple replacement for missing mktemp
2449     # NOT SAFE FOR GENERAL USE
2450     mktemp(){
2451         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2452     }
2453 fi
2454
2455 tmpfile(){
2456     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2457         (set -C; exec > $tmp) 2>/dev/null ||
2458         die "Unable to create temporary file in $TMPDIR."
2459     append TMPFILES $tmp
2460     eval $1=$tmp
2461 }
2462
2463 trap 'rm -f -- $TMPFILES' EXIT
2464
2465 tmpfile TMPASM .asm
2466 tmpfile TMPC   .c
2467 tmpfile TMPCPP .cpp
2468 tmpfile TMPE   $EXESUF
2469 tmpfile TMPH   .h
2470 tmpfile TMPO   .o
2471 tmpfile TMPS   .S
2472 tmpfile TMPSH  .sh
2473 tmpfile TMPV   .ver
2474
2475 unset -f mktemp
2476
2477 chmod +x $TMPE
2478
2479 # make sure we can execute files in $TMPDIR
2480 cat > $TMPSH 2>> $logfile <<EOF
2481 #! /bin/sh
2482 EOF
2483 chmod +x $TMPSH >> $logfile 2>&1
2484 if ! $TMPSH >> $logfile 2>&1; then
2485     cat <<EOF
2486 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2487 variable to another directory and make sure that it is not mounted noexec.
2488 EOF
2489     die "Sanity test failed."
2490 fi
2491
2492 ccc_flags(){
2493     for flag; do
2494         case $flag in
2495             -std=c99)           echo -c99                       ;;
2496             -mcpu=*)            echo -arch ${flag#*=}           ;;
2497             -mieee)             echo -ieee                      ;;
2498             -O*|-fast)          echo $flag                      ;;
2499             -fno-math-errno)    echo -assume nomath_errno       ;;
2500             -g)                 echo -g3                        ;;
2501             -Wall)              echo -msg_enable level2         ;;
2502             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2503             -Wl,*)              echo $flag                      ;;
2504             -f*|-W*)                                            ;;
2505             *)                  echo $flag                      ;;
2506         esac
2507    done
2508 }
2509
2510 msvc_flags(){
2511     for flag; do
2512         case $flag in
2513             -fomit-frame-pointer) echo -Oy ;;
2514             -g)                   echo -Z7 ;;
2515             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2516                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2517                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2518                                        -wd4554 \
2519                                        -wd4996 -wd4273 ;;
2520             -std=c99)             ;;
2521             -fno-math-errno)      ;;
2522             -fno-common)          ;;
2523             -fno-signed-zeros)    ;;
2524             -fPIC)                ;;
2525             -lz)                  echo zlib.lib ;;
2526             -lavifil32)           echo vfw32.lib ;;
2527             -lavicap32)           echo vfw32.lib user32.lib ;;
2528             -l*)                  echo ${flag#-l}.lib ;;
2529             *)                    echo $flag ;;
2530         esac
2531     done
2532 }
2533
2534 pgi_flags(){
2535     for flag; do
2536         case $flag in
2537             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2538             -fomit-frame-pointer) echo -Mnoframe ;;
2539             -g)                   echo -gopt ;;
2540             *)                    echo $flag ;;
2541         esac
2542     done
2543 }
2544
2545 suncc_flags(){
2546     for flag; do
2547         case $flag in
2548             -march=*|-mcpu=*)
2549                 case "${flag#*=}" in
2550                     native)                   echo -xtarget=native       ;;
2551                     v9|niagara)               echo -xarch=sparc          ;;
2552                     ultrasparc)               echo -xarch=sparcvis       ;;
2553                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2554                     i586|pentium)             echo -xchip=pentium        ;;
2555                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2556                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2557                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2558                     pentium4*)          echo -xtarget=pentium4           ;;
2559                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2560                     *-sse3)             echo -xarch=sse3                 ;;
2561                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2562                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2563                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2564                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2565                     bdver*)                   echo -xarch=avx            ;;
2566                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2567                     k8|opteron|athlon64|athlon-fx)
2568                                               echo -xarch=sse2a          ;;
2569                     athlon*)                  echo -xarch=pentium_proa   ;;
2570                 esac
2571                 ;;
2572             -std=c99)             echo -xc99              ;;
2573             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2574             -fPIC)                echo -KPIC -xcode=pic32 ;;
2575             -W*,*)                echo $flag              ;;
2576             -f*-*|-W*|-mimpure-text)                      ;;
2577             -shared)              echo -G                 ;;
2578             *)                    echo $flag              ;;
2579         esac
2580     done
2581 }
2582
2583 tms470_flags(){
2584     for flag; do
2585         case $flag in
2586             -march=*|-mcpu=*)
2587                 case "${flag#*=}" in
2588                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2589                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2590                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2591                     armv6*|arm11*)          echo -mv=6   ;;
2592                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2593                                             echo -mv=5e  ;;
2594                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2595                 esac
2596                 ;;
2597             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2598             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2599             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2600             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2601             -msoft-float)   echo --float_support=vfplib       ;;
2602             -O[0-3]|-mf=*)  echo $flag                        ;;
2603             -g)             echo -g -mn                       ;;
2604             -pds=*)         echo $flag                        ;;
2605             -D*|-I*)        echo $flag                        ;;
2606             --gcc|--abi=*)  echo $flag                        ;;
2607             -me)            echo $flag                        ;;
2608         esac
2609     done
2610 }
2611
2612 probe_cc(){
2613     pfx=$1
2614     _cc=$2
2615
2616     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2617     unset _ld_o _ldflags _ld_lib _ld_path
2618     unset _depflags _DEPCMD _DEPFLAGS
2619     _flags_filter=echo
2620
2621     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2622         _type=llvm_gcc
2623         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2624         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2625         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2626         _cflags_speed='-O3'
2627         _cflags_size='-Os'
2628     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2629         _type=gcc
2630         gcc_version=$($_cc --version | head -n1)
2631         gcc_basever=$($_cc -dumpversion)
2632         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2633         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2634         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2635         if ! $_cc -dumpversion | grep -q '^2\.'; then
2636             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2637         fi
2638         _cflags_speed='-O3'
2639         _cflags_size='-Os'
2640     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2641         _type=icc
2642         _ident=$($_cc --version | head -n1)
2643         _depflags='-MMD'
2644         _cflags_speed='-O3'
2645         _cflags_size='-Os'
2646         _cflags_noopt='-O1'
2647     elif $_cc -v 2>&1 | grep -q xlc; then
2648         _type=xlc
2649         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2650         _cflags_speed='-O5'
2651         _cflags_size='-O5 -qcompact'
2652     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2653         _type=ccc
2654         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2655         _DEPFLAGS='-M'
2656         _cflags_speed='-fast'
2657         _cflags_size='-O1'
2658         _flags_filter=ccc_flags
2659     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2660         test -d "$sysroot" || die "No valid sysroot specified."
2661         _type=armcc
2662         _ident=$($_cc --vsn | head -n1)
2663         armcc_conf="$PWD/armcc.conf"
2664         $_cc --arm_linux_configure                 \
2665              --arm_linux_config_file="$armcc_conf" \
2666              --configure_sysroot="$sysroot"        \
2667              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2668              die "Error creating armcc configuration file."
2669         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2670         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2671         as_default="${cross_prefix}gcc"
2672         _depflags='-MMD'
2673         _cflags_speed='-O3'
2674         _cflags_size='-Os'
2675     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2676         _type=tms470
2677         _ident=$($_cc -version | head -n1 | tr -s ' ')
2678         _flags='--gcc --abi=eabi -me'
2679         _cc_e='-ppl -fe=$@'
2680         _cc_o='-fe=$@'
2681         _depflags='-ppa -ppd=$(@:.o=.d)'
2682         _cflags_speed='-O3 -mf=5'
2683         _cflags_size='-O3 -mf=2'
2684         _flags_filter=tms470_flags
2685     elif $_cc -v 2>&1 | grep -q clang; then
2686         _type=clang
2687         _ident=$($_cc --version | head -n1)
2688         _depflags='-MMD'
2689         _cflags_speed='-O3'
2690         _cflags_size='-Os'
2691     elif $_cc -V 2>&1 | grep -q Sun; then
2692         _type=suncc
2693         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2694         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2695         _DEPFLAGS='-xM1 -xc99'
2696         _ldflags='-std=c99'
2697         _cflags_speed='-O5'
2698         _cflags_size='-O5 -xspace'
2699         _flags_filter=suncc_flags
2700     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2701         _type=pathscale
2702         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2703         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2704         _cflags_speed='-O2'
2705         _cflags_size='-Os'
2706         _flags_filter='filter_out -Wdisabled-optimization'
2707     elif $_cc -v 2>&1 | grep -q Open64; then
2708         _type=open64
2709         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2710         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2711         _cflags_speed='-O2'
2712         _cflags_size='-Os'
2713         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2714     elif $_cc -V 2>&1 | grep -q Portland; then
2715         _type=pgi
2716         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2717         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2718         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2719         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2720         _cflags_noopt="-O1"
2721         _flags_filter=pgi_flags
2722     elif $_cc 2>&1 | grep -q Microsoft; then
2723         _type=msvc
2724         _ident=$($cc 2>&1 | head -n1)
2725         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2726         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2727         _cflags_speed="-O2"
2728         _cflags_size="-O1"
2729         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2730         if $_cc 2>&1 | grep -q Linker; then
2731             _ld_o='-out $@'
2732         else
2733             _ld_o='-Fe$@'
2734         fi
2735         _cc_o='-Fo $@'
2736         _cc_e='-P -Fi $@'
2737         _flags_filter=msvc_flags
2738         _ld_lib='lib%.a'
2739         _ld_path='-libpath:'
2740         _flags='-nologo'
2741         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2742         if [ $pfx = hostcc ]; then
2743             append _cflags -Dsnprintf=_snprintf
2744         fi
2745         disable stripping
2746     fi
2747
2748     eval ${pfx}_type=\$_type
2749     eval ${pfx}_ident=\$_ident
2750 }
2751
2752 set_ccvars(){
2753     eval ${1}_C=\${_cc_c-\${${1}_C}}
2754     eval ${1}_E=\${_cc_e-\${${1}_E}}
2755     eval ${1}_O=\${_cc_o-\${${1}_O}}
2756
2757     if [ -n "$_depflags" ]; then
2758         eval ${1}_DEPFLAGS=\$_depflags
2759     else
2760         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2761         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2762         eval DEP${1}FLAGS=\$_flags
2763     fi
2764 }
2765
2766 probe_cc cc "$cc"
2767 cflags_filter=$_flags_filter
2768 cflags_speed=$_cflags_speed
2769 cflags_size=$_cflags_size
2770 cflags_noopt=$_cflags_noopt
2771 add_cflags $_flags $_cflags
2772 cc_ldflags=$_ldflags
2773 set_ccvars CC
2774
2775 probe_cc hostcc "$host_cc"
2776 host_cflags_filter=$_flags_filter
2777 add_host_cflags  $_flags $_cflags
2778 set_ccvars HOSTCC
2779
2780 test -n "$cc_type" && enable $cc_type ||
2781     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2782
2783 : ${as_default:=$cc}
2784 : ${dep_cc_default:=$cc}
2785 : ${ld_default:=$cc}
2786 : ${host_ld_default:=$host_cc}
2787 set_default ar as dep_cc ld host_ld
2788
2789 probe_cc as "$as"
2790 asflags_filter=$_flags_filter
2791 add_asflags $_flags $_cflags
2792 set_ccvars AS
2793
2794 probe_cc ld "$ld"
2795 ldflags_filter=$_flags_filter
2796 add_ldflags $_flags $_ldflags
2797 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2798 LD_O=${_ld_o-$LD_O}
2799 LD_LIB=${_ld_lib-$LD_LIB}
2800 LD_PATH=${_ld_path-$LD_PATH}
2801
2802 probe_cc hostld "$host_ld"
2803 host_ldflags_filter=$_flags_filter
2804 add_host_ldflags $_flags $_ldflags
2805 HOSTLD_O=${_ld_o-$HOSTLD_O}
2806
2807 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2808     probe_cc depcc "$dep_cc"
2809     CCDEP=${_DEPCMD:-$DEPCMD}
2810     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2811     DEPCCFLAGS=$_flags
2812 fi
2813
2814 if $ar 2>&1 | grep -q Microsoft; then
2815     arflags="-nologo"
2816     ar_o='-out:$@'
2817 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2818     arflags="rq"
2819     ar_o='$@'
2820 else
2821     arflags="rc"
2822     ar_o='$@'
2823 fi
2824
2825 add_cflags $extra_cflags
2826 add_cxxflags $extra_cxxflags
2827 add_asflags $extra_cflags
2828
2829 if test -n "$sysroot"; then
2830     case "$cc_type" in
2831         gcc|llvm_gcc|clang)
2832             add_cppflags --sysroot="$sysroot"
2833             add_ldflags --sysroot="$sysroot"
2834         ;;
2835         tms470)
2836             add_cppflags -I"$sysinclude"
2837             add_ldflags  --sysroot="$sysroot"
2838         ;;
2839     esac
2840 fi
2841
2842 if test "$cpu" = host; then
2843     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2844
2845     case "$cc_type" in
2846         gcc|llvm_gcc)
2847             check_native(){
2848                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2849                 sed -n "/cc1.*$1=/{
2850                             s/.*$1=\\([^ ]*\\).*/\\1/
2851                             p
2852                             q
2853                         }" $TMPE
2854             }
2855             cpu=$(check_native -march || check_native -mcpu)
2856         ;;
2857     esac
2858
2859     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2860 fi
2861
2862 # Deal with common $arch aliases
2863 case "$arch" in
2864     aarch64|arm64)
2865         arch="aarch64"
2866     ;;
2867     arm*|iPad*)
2868         arch="arm"
2869     ;;
2870     mips*|IP*)
2871         arch="mips"
2872     ;;
2873     parisc*|hppa*)
2874         arch="parisc"
2875     ;;
2876     "Power Macintosh"|ppc*|powerpc*)
2877         arch="ppc"
2878     ;;
2879     s390|s390x)
2880         arch="s390"
2881     ;;
2882     sh4|sh)
2883         arch="sh4"
2884     ;;
2885     sun4u|sparc*)
2886         arch="sparc"
2887     ;;
2888     tilegx|tile-gx)
2889         arch="tilegx"
2890     ;;
2891     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2892         arch="x86"
2893     ;;
2894 esac
2895
2896 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2897 enable $arch
2898
2899 # Add processor-specific flags
2900 if enabled aarch64; then
2901
2902     case $cpu in
2903         armv*)
2904             cpuflags="-march=$cpu"
2905         ;;
2906         *)
2907             cpuflags="-mcpu=$cpu"
2908         ;;
2909     esac
2910
2911 elif enabled alpha; then
2912
2913     cpuflags="-mcpu=$cpu"
2914
2915 elif enabled arm; then
2916
2917     check_arm_arch() {
2918         check_cpp_condition stddef.h \
2919             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2920             $cpuflags
2921     }
2922
2923     probe_arm_arch() {
2924         if   check_arm_arch 4;        then echo armv4;
2925         elif check_arm_arch 4T;       then echo armv4t;
2926         elif check_arm_arch 5;        then echo armv5;
2927         elif check_arm_arch 5E;       then echo armv5e;
2928         elif check_arm_arch 5T;       then echo armv5t;
2929         elif check_arm_arch 5TE;      then echo armv5te;
2930         elif check_arm_arch 5TEJ;     then echo armv5te;
2931         elif check_arm_arch 6;        then echo armv6;
2932         elif check_arm_arch 6J;       then echo armv6j;
2933         elif check_arm_arch 6K;       then echo armv6k;
2934         elif check_arm_arch 6Z;       then echo armv6z;
2935         elif check_arm_arch 6ZK;      then echo armv6zk;
2936         elif check_arm_arch 6T2;      then echo armv6t2;
2937         elif check_arm_arch 7;        then echo armv7;
2938         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2939         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2940         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2941         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2942         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2943         fi
2944     }
2945
2946     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2947
2948     case $cpu in
2949         armv*)
2950             cpuflags="-march=$cpu"
2951             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2952         ;;
2953         *)
2954             cpuflags="-mcpu=$cpu"
2955             case $cpu in
2956                 cortex-a*)                               subarch=armv7a  ;;
2957                 cortex-r*)                               subarch=armv7r  ;;
2958                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2959                 arm11*)                                  subarch=armv6   ;;
2960                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2961                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2962                 *)                             subarch=$(probe_arm_arch) ;;
2963             esac
2964         ;;
2965     esac
2966
2967     case "$subarch" in
2968         armv5t*)    enable fast_clz                ;;
2969         armv[6-8]*) enable fast_clz fast_unaligned ;;
2970     esac
2971
2972 elif enabled avr32; then
2973
2974     case $cpu in
2975         ap7[02]0[0-2])
2976             subarch="avr32_ap"
2977             cpuflags="-mpart=$cpu"
2978         ;;
2979         ap)
2980             subarch="avr32_ap"
2981             cpuflags="-march=$cpu"
2982         ;;
2983         uc3[ab]*)
2984             subarch="avr32_uc"
2985             cpuflags="-mcpu=$cpu"
2986         ;;
2987         uc)
2988             subarch="avr32_uc"
2989             cpuflags="-march=$cpu"
2990         ;;
2991     esac
2992
2993 elif enabled bfin; then
2994
2995     cpuflags="-mcpu=$cpu"
2996
2997 elif enabled mips; then
2998
2999     cpuflags="-march=$cpu"
3000
3001     case $cpu in
3002         24kc)
3003             disable mipsfpu
3004             disable mipsdspr1
3005             disable mipsdspr2
3006         ;;
3007         24kf*)
3008             disable mipsdspr1
3009             disable mipsdspr2
3010         ;;
3011         24kec|34kc|1004kc)
3012             disable mipsfpu
3013             disable mipsdspr2
3014         ;;
3015         24kef*|34kf*|1004kf*)
3016             disable mipsdspr2
3017         ;;
3018         74kc)
3019             disable mipsfpu
3020         ;;
3021     esac
3022
3023 elif enabled ppc; then
3024
3025     case $(tolower $cpu) in
3026         601|ppc601|powerpc601)
3027             cpuflags="-mcpu=601"
3028             disable altivec
3029         ;;
3030         603*|ppc603*|powerpc603*)
3031             cpuflags="-mcpu=603"
3032             disable altivec
3033         ;;
3034         604*|ppc604*|powerpc604*)
3035             cpuflags="-mcpu=604"
3036             disable altivec
3037         ;;
3038         g3|75*|ppc75*|powerpc75*)
3039             cpuflags="-mcpu=750"
3040             disable altivec
3041         ;;
3042         g4|745*|ppc745*|powerpc745*)
3043             cpuflags="-mcpu=7450"
3044         ;;
3045         74*|ppc74*|powerpc74*)
3046             cpuflags="-mcpu=7400"
3047         ;;
3048         g5|970|ppc970|powerpc970)
3049             cpuflags="-mcpu=970"
3050         ;;
3051         power[3-7]*)
3052             cpuflags="-mcpu=$cpu"
3053         ;;
3054         cell)
3055             cpuflags="-mcpu=cell"
3056             enable ldbrx
3057         ;;
3058         e500mc)
3059             cpuflags="-mcpu=e500mc"
3060             disable altivec
3061         ;;
3062         e500v2)
3063             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3064             disable altivec
3065         ;;
3066         e500)
3067             cpuflags="-mcpu=8540 -mhard-float"
3068             disable altivec
3069         ;;
3070     esac
3071
3072 elif enabled sparc; then
3073
3074     case $cpu in
3075         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3076             cpuflags="-mcpu=$cpu"
3077             disable vis
3078         ;;
3079         ultrasparc*|niagara[234])
3080             cpuflags="-mcpu=$cpu"
3081         ;;
3082     esac
3083
3084 elif enabled x86; then
3085
3086     case $cpu in
3087         i[345]86|pentium)
3088             cpuflags="-march=$cpu"
3089             disable mmx
3090         ;;
3091         # targets that do NOT support conditional mov (cmov)
3092         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3093             cpuflags="-march=$cpu"
3094             disable cmov
3095         ;;
3096         # targets that do support conditional mov (cmov)
3097         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3098             cpuflags="-march=$cpu"
3099             enable cmov
3100             enable fast_cmov
3101         ;;
3102         # targets that do support conditional mov but on which it's slow
3103         pentium4|pentium4m|prescott|nocona)
3104             cpuflags="-march=$cpu"
3105             enable cmov
3106             disable fast_cmov
3107         ;;
3108     esac
3109
3110 fi
3111
3112 if [ "$cpu" != generic ]; then
3113     add_cflags  $cpuflags
3114     add_asflags $cpuflags
3115 fi
3116
3117 # compiler sanity check
3118 check_exec <<EOF
3119 int main(void){ return 0; }
3120 EOF
3121 if test "$?" != 0; then
3122     echo "$cc is unable to create an executable file."
3123     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3124         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3125         echo "Only do this if you know what cross compiling means."
3126     fi
3127     die "C compiler test failed."
3128 fi
3129
3130 add_cppflags -D_ISOC99_SOURCE
3131 add_cxxflags -D__STDC_CONSTANT_MACROS
3132 check_cflags -std=c99
3133 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3134 #include <stdlib.h>
3135 EOF
3136 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3137 #include <stdlib.h>
3138 EOF
3139
3140 check_host_cflags -std=c99
3141 check_host_cflags -Wall
3142
3143 check_64bit(){
3144     arch32=$1
3145     arch64=$2
3146     expr=$3
3147     check_code cc "" "int test[2*($expr) - 1]" &&
3148         subarch=$arch64 || subarch=$arch32
3149 }
3150
3151 case "$arch" in
3152     aarch64|alpha|ia64)
3153         spic=$shared
3154     ;;
3155     mips)
3156         check_64bit mips mips64 '_MIPS_SIM > 1'
3157         spic=$shared
3158     ;;
3159     parisc)
3160         check_64bit parisc parisc64 'sizeof(void *) > 4'
3161         spic=$shared
3162     ;;
3163     ppc)
3164         check_64bit ppc ppc64 'sizeof(void *) > 4'
3165         spic=$shared
3166     ;;
3167     sparc)
3168         check_64bit sparc sparc64 'sizeof(void *) > 4'
3169         spic=$shared
3170     ;;
3171     x86)
3172         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3173         if test "$subarch" = "x86_64"; then
3174             spic=$shared
3175         fi
3176     ;;
3177     ppc)
3178         check_cc <<EOF && subarch="ppc64"
3179         int test[(int)sizeof(char*) - 7];
3180 EOF
3181     ;;
3182 esac
3183
3184 enable $subarch
3185 enabled spic && enable pic
3186
3187 # OS specific
3188 case $target_os in
3189     haiku)
3190         prefix_default="/boot/common"
3191         network_extralibs="-lnetwork"
3192         host_libs=
3193         ;;
3194     sunos)
3195         FFSERVERLDFLAGS=""
3196         SHFLAGS='-shared -Wl,-h,$$(@F)'
3197         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3198         network_extralibs="-lsocket -lnsl"
3199         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3200         # When using suncc to build, the Solaris linker will mark
3201         # an executable with each instruction set encountered by
3202         # the Solaris assembler.  As our libraries contain their own
3203         # guards for processor-specific code, instead suppress
3204         # generation of the HWCAPS ELF section on Solaris x86 only.
3205         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3206         nm_default='nm -P -g'
3207         ;;
3208     netbsd)
3209         disable symver
3210         oss_indev_extralibs="-lossaudio"
3211         oss_outdev_extralibs="-lossaudio"
3212         enabled gcc || check_ldflags -Wl,-zmuldefs
3213         ;;
3214     openbsd|bitrig)
3215         disable symver
3216         SHFLAGS='-shared'
3217         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3218         SLIB_INSTALL_LINKS=
3219         oss_indev_extralibs="-lossaudio"
3220         oss_outdev_extralibs="-lossaudio"
3221         ;;
3222     dragonfly)
3223         disable symver
3224         ;;
3225     freebsd)
3226         ;;
3227     bsd/os)
3228         add_extralibs -lpoll -lgnugetopt
3229         strip="strip -d"
3230         ;;
3231     darwin)
3232         gas="gas-preprocessor.pl $cc"
3233         enabled ppc && add_asflags -force_cpusubtype_ALL
3234         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3235         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3236         strip="${strip} -x"
3237         add_ldflags -Wl,-dynamic,-search_paths_first
3238         SLIBSUF=".dylib"
3239         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3240         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3241         FFSERVERLDFLAGS=-Wl,-bind_at_load
3242         objformat="macho"
3243         enabled x86_64 && objformat="macho64"
3244         enabled_any pic shared ||
3245             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3246         ;;
3247     mingw32*)
3248         if test $target_os = "mingw32ce"; then
3249             disable network
3250         else
3251             target_os=mingw32
3252         fi
3253         LIBTARGET=i386
3254         if enabled x86_64; then
3255             LIBTARGET="i386:x86-64"
3256         elif enabled arm; then
3257             LIBTARGET=arm-wince
3258         fi
3259         shlibdir_default="$bindir_default"
3260         SLIBPREF=""
3261         SLIBSUF=".dll"
3262         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3263         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3264         dlltool="${cross_prefix}dlltool"
3265         if check_cmd lib.exe -list; then
3266             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3267             if enabled x86_64; then
3268                 LIBTARGET=x64
3269             fi
3270         elif check_cmd $dlltool --version; then
3271             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3272         fi
3273         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3274         SLIB_INSTALL_LINKS=
3275         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3276         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3277         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3278         objformat="win32"
3279         ranlib=:
3280         enable dos_paths
3281         ;;
3282     win32|win64)
3283         if enabled shared; then
3284             # Link to the import library instead of the normal static library
3285             # for shared libs.
3286             LD_LIB='%.lib'
3287             # Cannot build shared and static libraries at the same time with
3288             # MSVC.
3289             disable static
3290         fi
3291         shlibdir_default="$bindir_default"
3292         SLIBPREF=""
3293         SLIBSUF=".dll"
3294         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3295         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3296         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3297         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3298         SLIB_INSTALL_LINKS=
3299         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3300         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3301         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3302         objformat="win32"
3303         ranlib=:
3304         enable dos_paths
3305         ;;
3306     cygwin*)
3307         target_os=cygwin
3308         shlibdir_default="$bindir_default"
3309         SLIBPREF="cyg"
3310         SLIBSUF=".dll"
3311         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3312         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3313         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3314         SLIB_INSTALL_LINKS=
3315         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3316         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3317         objformat="win32"
3318         enable dos_paths
3319         ;;
3320     *-dos|freedos|opendos)
3321         network_extralibs="-lsocket"
3322         objformat="coff"
3323         enable dos_paths
3324         add_cppflags -U__STRICT_ANSI__
3325         ;;
3326     linux)
3327         enable dv1394
3328         ;;
3329     irix*)
3330         target_os=irix
3331         ranlib="echo ignoring ranlib"
3332         ;;
3333     os/2*)
3334         strip="lxlite -CS"
3335         ln_s="cp -f"
3336         objformat="aout"
3337         add_cppflags -D_GNU_SOURCE
3338         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3339         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3340         FFSERVERLDFLAGS=""
3341         LIBSUF="_s.a"
3342         SLIBPREF=""
3343         SLIBSUF=".dll"
3344         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3345         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3346         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3347             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3348             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3349             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3350             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3351             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3352         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3353             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3354         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3355         enable dos_paths
3356         enable_weak os2threads
3357         ;;
3358     gnu/kfreebsd)
3359         add_cppflags -D_BSD_SOURCE
3360         ;;
3361     gnu)
3362         ;;
3363     qnx)
3364         add_cppflags -D_QNX_SOURCE
3365         network_extralibs="-lsocket"
3366         ;;
3367     symbian)
3368         SLIBSUF=".dll"
3369         enable dos_paths
3370         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3371         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3372         add_ldflags -Wl,--target1-abs,--no-undefined \
3373                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3374                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3375         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3376                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3377                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3378         ;;
3379     osf1)
3380         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3381         FFSERVERLDFLAGS=
3382         ;;
3383     minix)
3384         ;;
3385     plan9)
3386         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3387                      -D_REENTRANT_SOURCE        \
3388                      -D_RESEARCH_SOURCE         \
3389                      -DFD_SETSIZE=96            \
3390                      -DHAVE_SOCK_OPTS
3391         add_compat strtod.o strtod=avpriv_strtod
3392         network_extralibs='-lbsd'
3393         exeobjs=compat/plan9/main.o
3394         disable ffserver
3395         cp_f='cp'
3396         ;;
3397     none)
3398         ;;
3399     *)
3400         die "Unknown OS '$target_os'."
3401         ;;
3402 esac
3403
3404 # determine libc flavour
3405
3406 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3407 if check_cpp_condition features.h "defined __UCLIBC__"; then
3408     libc_type=uclibc
3409     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3410 elif check_cpp_condition features.h "defined __GLIBC__"; then
3411     libc_type=glibc
3412     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3413 # MinGW headers can be installed on Cygwin, so check for newlib first.
3414 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3415     libc_type=newlib
3416     add_cppflags -U__STRICT_ANSI__
3417 elif check_header _mingw.h; then
3418     libc_type=mingw
3419     check_cpp_condition _mingw.h \
3420         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3421             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3422         die "ERROR: MinGW runtime version must be >= 3.15."
3423     add_cppflags -U__STRICT_ANSI__
3424     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3425             __MINGW64_VERSION_MAJOR < 3"; then
3426         add_compat msvcrt/snprintf.o
3427         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3428     fi
3429 elif check_func_headers stdlib.h _get_doserrno; then
3430     libc_type=msvcrt
3431     add_compat strtod.o strtod=avpriv_strtod
3432     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3433                                  _snprintf=avpriv_snprintf  \
3434                                  vsnprintf=avpriv_vsnprintf
3435 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3436     libc_type=klibc
3437 fi
3438
3439 test -n "$libc_type" && enable $libc_type
3440
3441 # hacks for compiler/libc/os combinations
3442
3443 if enabled_all tms470 glibc; then
3444     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3445     add_cppflags -D__USER_LABEL_PREFIX__=
3446     add_cppflags -D__builtin_memset=memset
3447     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3448     add_cflags   -pds=48    # incompatible redefinition of macro
3449 fi
3450
3451 if enabled_all ccc glibc; then
3452     add_ldflags -Wl,-z,now  # calls to libots crash without this
3453 fi
3454
3455 esc(){
3456     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3457 }
3458
3459 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3460
3461 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3462
3463 set_default $PATHS_LIST
3464 set_default nm
3465
3466 # we need to build at least one lib type
3467 if ! enabled_any static shared; then
3468     cat <<EOF
3469 At least one library type must be built.
3470 Specify --enable-static to build the static libraries or --enable-shared to
3471 build the shared libraries as well. To only build the shared libraries specify
3472 --disable-static in addition to --enable-shared.
3473 EOF
3474     exit 1;
3475 fi
3476
3477 die_license_disabled() {
3478     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3479 }
3480
3481 die_license_disabled_gpl() {
3482     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3483 }
3484
3485 die_license_disabled gpl libcdio
3486 die_license_disabled gpl libutvideo
3487 die_license_disabled gpl libx264
3488 die_license_disabled gpl libxavs
3489 die_license_disabled gpl libxvid
3490 die_license_disabled gpl x11grab
3491
3492 die_license_disabled nonfree libaacplus
3493 die_license_disabled nonfree libfaac
3494 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3495 enabled gpl && die_license_disabled_gpl nonfree openssl
3496
3497 die_license_disabled version3 libopencore_amrnb
3498 die_license_disabled version3 libopencore_amrwb
3499 die_license_disabled version3 libvo_aacenc
3500 die_license_disabled version3 libvo_amrwbenc
3501
3502 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3503
3504 disabled optimizations || check_cflags -fomit-frame-pointer
3505
3506 enable_pic() {
3507     enable pic
3508     add_cppflags -DPIC
3509     add_cflags   -fPIC
3510     add_asflags  -fPIC
3511 }
3512
3513 enabled pic && enable_pic
3514
3515 check_cc <<EOF || die "Symbol mangling check failed."
3516 int ff_extern;
3517 EOF
3518 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3519 extern_prefix=${sym%%ff_extern*}
3520
3521 check_cc <<EOF && enable_weak inline_asm
3522 void foo(void) { __asm__ volatile ("" ::); }
3523 EOF
3524
3525 _restrict=
3526 for restrict_keyword in restrict __restrict__ __restrict; do
3527     check_cc <<EOF && _restrict=$restrict_keyword && break
3528 void foo(char * $restrict_keyword p);
3529 EOF
3530 done
3531
3532 check_cc <<EOF && enable attribute_packed
3533 struct { int x; } __attribute__((packed)) x;
3534 EOF
3535
3536 check_cc <<EOF && enable attribute_may_alias
3537 union { int x; } __attribute__((may_alias)) x;
3538 EOF
3539
3540 check_cc <<EOF || die "endian test failed"
3541 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3542 EOF
3543 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3544
3545 if enabled alpha; then
3546
3547     check_cflags -mieee
3548
3549 elif enabled arm; then
3550
3551     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3552 float func(float a, float b){ return a+b; }
3553 EOF
3554
3555     enabled thumb && check_cflags -mthumb || check_cflags -marm
3556     nogas=die
3557
3558     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3559         enable vfp_args
3560     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3561         case "${cross_prefix:-$cc}" in
3562             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3563             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3564 __asm__ (".eabi_attribute 28, 1");
3565 int main(void) { return 0; }
3566 EOF
3567         esac
3568         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3569     fi
3570
3571     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3572     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3573     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3574     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3575     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3576     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3577
3578     [ $target_os = linux ] ||
3579         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3580             $ARCH_EXT_LIST_ARM
3581
3582     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3583     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3584
3585     enabled_all armv6t2 shared !pic && enable_pic
3586
3587 elif enabled mips; then
3588
3589     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3590     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3591      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3592     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3593      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3594     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3595      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3596     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3597      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3598
3599 elif enabled parisc; then
3600
3601     if enabled gcc; then
3602         case $($cc -dumpversion) in
3603             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3604         esac
3605     fi
3606
3607 elif enabled ppc; then
3608
3609     enable local_aligned_8 local_aligned_16
3610
3611     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3612     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3613     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3614     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3615
3616     # AltiVec flags: The FSF version of GCC differs from the Apple version
3617     if enabled altivec; then
3618         nogas=warn
3619         check_cflags -maltivec -mabi=altivec &&
3620         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3621         check_cflags -faltivec
3622
3623         # check if our compiler supports Motorola AltiVec C API
3624         check_cc <<EOF || disable altivec
3625 $inc_altivec_h
3626 int main(void) {
3627     vector signed int v1 = (vector signed int) { 0 };
3628     vector signed int v2 = (vector signed int) { 1 };
3629     v1 = vec_add(v1, v2);
3630     return 0;
3631 }
3632 EOF
3633
3634         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3635     fi
3636
3637 elif enabled sparc; then
3638
3639     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3640
3641 elif enabled x86; then
3642
3643     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3644
3645     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3646
3647     enable local_aligned_8 local_aligned_16
3648
3649     # check whether EBP is available on x86
3650     # As 'i' is stored on the stack, this program will crash
3651     # if the base pointer is used to access it because the
3652     # base pointer is cleared in the inline assembly code.
3653     check_exec_crash <<EOF && enable ebp_available
3654 volatile int i=0;
3655 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3656 return i;
3657 EOF
3658
3659     # check whether EBX is available on x86
3660     check_inline_asm ebx_available '""::"b"(0)' &&
3661         check_inline_asm ebx_available '"":::"%ebx"'
3662
3663     # check whether xmm clobbers are supported
3664     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3665
3666     # check whether binutils is new enough to compile SSSE3/MMXEXT
3667     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3668     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3669
3670     if ! disabled_any asm mmx yasm; then
3671         if check_cmd $yasmexe --version; then
3672             enabled x86_64 && yasm_extra="-m amd64"
3673             yasm_debug="-g dwarf2"
3674         elif check_cmd nasm -v; then
3675             yasmexe=nasm
3676             yasm_debug="-g -F dwarf"
3677             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3678         fi
3679
3680         YASMFLAGS="-f $objformat $yasm_extra"
3681         enabled pic               && append YASMFLAGS "-DPIC"
3682         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3683         case "$objformat" in
3684             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3685         esac
3686
3687         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3688             die "yasm not found, use --disable-yasm for a crippled build"
3689         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3690         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3691         check_yasm "CPU amdnop" && enable cpunop
3692     fi
3693
3694     case "$cpu" in
3695         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3696             disable fast_clz
3697         ;;
3698     esac
3699
3700 fi
3701
3702 if enabled asm; then
3703     as=${gas:=$as}
3704     check_as <<EOF && enable gnu_as || \
3705         $nogas "GNU assembler not found, install gas-preprocessor"
3706 .macro m n
3707 \n: .int 0
3708 .endm
3709 m x
3710 EOF
3711 fi
3712
3713 check_ldflags -Wl,--as-needed
3714
3715 if check_func dlopen; then
3716     ldl=
3717 elif check_func dlopen -ldl; then
3718     ldl=-ldl
3719 fi
3720
3721 if ! disabled network; then
3722     check_type "sys/types.h sys/socket.h" socklen_t
3723     check_type netdb.h "struct addrinfo"
3724     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3725     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3726     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3727     check_type netinet/in.h "struct sockaddr_in6"
3728     check_type poll.h "struct pollfd"
3729     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3730     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3731     check_type netinet/sctp.h "struct sctp_event_subscribe"
3732     check_func getaddrinfo $network_extralibs
3733     check_func getservbyport $network_extralibs
3734     # Prefer arpa/inet.h over winsock2
3735     if check_header arpa/inet.h ; then
3736         check_func closesocket
3737     elif check_header winsock2.h ; then
3738         check_func_headers winsock2.h closesocket -lws2 &&
3739             network_extralibs="-lws2" ||
3740         { check_func_headers winsock2.h closesocket -lws2_32 &&
3741             network_extralibs="-lws2_32"; }
3742         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3743         check_type ws2tcpip.h socklen_t
3744         check_type ws2tcpip.h "struct addrinfo"
3745         check_type ws2tcpip.h "struct group_source_req"
3746         check_type ws2tcpip.h "struct ip_mreq_source"
3747         check_type ws2tcpip.h "struct ipv6_mreq"
3748         check_type winsock2.h "struct pollfd"
3749         check_type ws2tcpip.h "struct sockaddr_in6"
3750         check_type ws2tcpip.h "struct sockaddr_storage"
3751         check_struct winsock2.h "struct sockaddr" sa_len
3752     else
3753         disable network
3754     fi
3755 fi
3756
3757 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3758 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3759
3760 check_func  access
3761 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3762 check_func  fcntl
3763 check_func  fork
3764 check_func  gethrtime
3765 check_func  getopt
3766 check_func  getrusage
3767 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3768 check_func  gettimeofday
3769 check_func  inet_aton $network_extralibs
3770 check_func  isatty
3771 check_func  localtime_r
3772 check_func  ${malloc_prefix}memalign            && enable memalign
3773 check_func  mkstemp
3774 check_func  mmap
3775 check_func  mprotect
3776 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3777 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3778 check_func  setrlimit
3779 check_func  strerror_r
3780 check_func  sched_getaffinity
3781 check_func  sysconf
3782 check_func  sysctl
3783 check_func  usleep
3784 check_func_headers conio.h kbhit
3785 check_func_headers windows.h PeekNamedPipe
3786 check_func_headers io.h setmode
3787 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3788 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3789 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3790 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3791 check_func_headers windows.h GetProcessAffinityMask
3792 check_func_headers windows.h GetProcessTimes
3793 check_func_headers windows.h GetSystemTimeAsFileTime
3794 check_func_headers windows.h MapViewOfFile
3795 check_func_headers windows.h SetConsoleTextAttribute
3796 check_func_headers windows.h Sleep
3797 check_func_headers windows.h VirtualAlloc
3798 check_func_headers glob.h glob
3799
3800 check_header direct.h
3801 check_header dlfcn.h
3802 check_header dxva.h
3803 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3804 check_header io.h
3805 check_header libcrystalhd/libcrystalhd_if.h
3806 check_header malloc.h
3807 check_header poll.h
3808 check_header sys/mman.h
3809 check_header sys/param.h
3810 check_header sys/resource.h
3811 check_header sys/select.h
3812 check_header sys/time.h
3813 check_header termios.h
3814 check_header unistd.h
3815 check_header vdpau/vdpau.h
3816 check_header vdpau/vdpau_x11.h
3817 check_header VideoDecodeAcceleration/VDADecoder.h
3818 check_header windows.h
3819 check_header X11/extensions/XvMClib.h
3820 check_header asm/types.h
3821
3822 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3823 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3824
3825 if ! disabled w32threads && ! enabled pthreads; then
3826     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3827 fi
3828
3829 # check for some common methods of building with pthread support
3830 # do this before the optional library checks as some of them require pthreads
3831 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3832     enable pthreads
3833     if check_func pthread_create; then
3834         :
3835     elif check_func pthread_create -pthread; then
3836         add_cflags -pthread
3837         add_extralibs -pthread
3838     elif check_func pthread_create -pthreads; then
3839         add_cflags -pthreads
3840         add_extralibs -pthreads
3841     elif check_func pthread_create -lpthreadGC2; then
3842         add_extralibs -lpthreadGC2
3843     elif ! check_lib pthread.h pthread_create -lpthread; then
3844         disable pthreads
3845     fi
3846 fi
3847
3848 for thread in $THREADS_LIST; do
3849     if enabled $thread; then
3850         test -n "$thread_type" &&
3851             die "ERROR: Only one thread type must be selected." ||
3852             thread_type="$thread"
3853     fi
3854 done
3855
3856 if enabled pthreads; then
3857   check_func pthread_cancel
3858 fi
3859
3860 check_lib math.h sin -lm && LIBM="-lm"
3861 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3862 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3863
3864 atan2f_args=2
3865 ldexpf_args=2
3866 powf_args=2
3867
3868 for func in $MATH_FUNCS; do
3869     eval check_mathfunc $func \${${func}_args:-1}
3870 done
3871
3872 # these are off by default, so fail if requested and not available
3873 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3874 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3875 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3876 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3877 enabled iconv      && { check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || die "ERROR: iconv not found"; }
3878 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3879 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3880 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3881 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3882 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3883                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3884                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3885 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3886 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3887 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3888 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"
3889 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3890 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3891 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3892                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3893                         done || die "ERROR: libgsm not found"; }
3894 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3895 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3896 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3897 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3898 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3899 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3900 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3901 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3902                          check_lib openjpeg.h opj_version -lopenjpeg ||
3903                          die "ERROR: libopenjpeg not found"; }
3904 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3905 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3906 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3907 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3908 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3909 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3910 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3911     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3912     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3913 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3914 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3915                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3916                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3917 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3918 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3919 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3920 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3921 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3922 enabled libvpx     && {
3923     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3924                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3925     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 ||
3926                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3927     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3928     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3929 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3930                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3931                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3932 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3933 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3934 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3935                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3936                         die "ERROR: openal not found"; } &&
3937                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3938                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3939 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3940                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3941                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3942                         die "ERROR: openssl not found"; }
3943
3944 if enabled gnutls; then
3945     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3946     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3947 fi
3948
3949 # libdc1394 check
3950 if enabled libdc1394; then
3951     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3952         enable libdc1394_2; } ||
3953     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3954         enable libdc1394_1; } ||
3955     die "ERROR: No version of libdc1394 found "
3956 fi
3957
3958 SDL_CONFIG="${cross_prefix}sdl-config"
3959 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3960     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3961     enable sdl &&
3962     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3963 else
3964   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3965     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3966     sdl_libs=$("${SDL_CONFIG}" --libs)
3967     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3968     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3969     enable sdl &&
3970     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3971   fi
3972 fi
3973 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3974
3975 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3976 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3977 perl --version > /dev/null 2>&1 && enable perl || disable perl
3978 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3979 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3980
3981 check_header linux/fb.h
3982 check_header linux/videodev.h
3983 check_header linux/videodev2.h
3984 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3985
3986 check_header sys/videoio.h
3987
3988 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3989 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3990 # w32api 3.12 had it defined wrong
3991 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3992
3993 check_type "dshow.h" IBaseFilter
3994
3995 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3996 { check_header dev/bktr/ioctl_meteor.h &&
3997   check_header dev/bktr/ioctl_bt848.h; } ||
3998 { check_header machine/ioctl_meteor.h &&
3999   check_header machine/ioctl_bt848.h; } ||
4000 { check_header dev/video/meteor/ioctl_meteor.h &&
4001   check_header dev/video/bktr/ioctl_bt848.h; } ||
4002 check_header dev/ic/bt8xx.h
4003
4004 check_header sndio.h
4005 if check_struct sys/soundcard.h audio_buf_info bytes; then
4006     enable_safe sys/soundcard.h
4007 else
4008     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4009     #include <sys/soundcard.h>
4010     audio_buf_info abc;
4011 EOF
4012 fi
4013 check_header soundcard.h
4014
4015 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4016
4017 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&