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