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