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