Merge commit '620289a20e022b9c16c10d546ef86cc0bb77cc84'
[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   --enable-x11grab         enable X11 grabbing [no]
134   --disable-network        disable network support [no]
135   --disable-dct            disable DCT code
136   --disable-dwt            disable DWT code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --enable-dxva2           enable DXVA2 code
145   --enable-vaapi           enable VAAPI code [autodetect]
146   --enable-vda             enable VDA code   [autodetect]
147   --enable-vdpau           enable VDPAU code [autodetect]
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --enable-bzlib           enable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
192   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
193   --enable-libass          enable libass subtitles rendering [no]
194   --enable-libbluray       enable BluRay reading using libbluray [no]
195   --enable-libcaca         enable textual display using libcaca
196   --enable-libcelt         enable CELT decoding via libcelt [no]
197   --enable-libcdio         enable audio CD grabbing with libcdio
198   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
199                            and libraw1394 [no]
200   --enable-libfaac         enable AAC encoding via libfaac [no]
201   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
202   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
203   --enable-libfreetype     enable libfreetype [no]
204   --enable-libgsm          enable GSM de/encoding via libgsm [no]
205   --enable-libiec61883     enable iec61883 via libiec61883 [no]
206   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
207   --enable-libmodplug      enable ModPlug via libmodplug [no]
208   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
209   --enable-libnut          enable NUT (de)muxing via libnut,
210                            native (de)muxer exists [no]
211   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
212   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
213   --enable-libopencv       enable video filtering via libopencv [no]
214   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
215   --enable-libopus         enable Opus decoding via libopus [no]
216   --enable-libpulse        enable Pulseaudio input via libpulse [no]
217   --enable-librtmp         enable RTMP[E] support via librtmp [no]
218   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
219   --enable-libsoxr         enable Include libsoxr resampling [no]
220   --enable-libspeex        enable Speex de/encoding via libspeex [no]
221   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
222   --enable-libtheora       enable Theora encoding via libtheora [no]
223   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
224   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
225   --enable-libv4l2         enable libv4l2/v4l-utils [no]
226   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
227   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
228   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
229                            native implementation exists [no]
230   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
231   --enable-libx264         enable H.264 encoding via x264 [no]
232   --enable-libxavs         enable AVS encoding via xavs [no]
233   --enable-libxvid         enable Xvid encoding via xvidcore,
234                            native MPEG-4/Xvid encoder exists [no]
235   --enable-openal          enable OpenAL 1.1 capture support [no]
236   --enable-openssl         enable openssl [no]
237   --enable-zlib            enable zlib [autodetect]
238
239 Advanced options (experts only):
240   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
241   --enable-cross-compile   assume a cross-compiler is used
242   --sysroot=PATH           root of cross-build tree
243   --sysinclude=PATH        location of cross-build system headers
244   --target-os=OS           compiler targets OS [$target_os]
245   --target-exec=CMD        command to run executables on target
246   --target-path=DIR        path to view of build directory on target
247   --toolchain=NAME         set tool defaults according to NAME
248   --nm=NM                  use nm tool NM [$nm_default]
249   --ar=AR                  use archive tool AR [$ar_default]
250   --as=AS                  use assembler AS [$as_default]
251   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
252   --cc=CC                  use C compiler CC [$cc_default]
253   --cxx=CXX                use C compiler CXX [$cxx_default]
254   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
255   --ld=LD                  use linker LD [$ld_default]
256   --host-cc=HOSTCC         use host C compiler HOSTCC
257   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
258   --host-ld=HOSTLD         use host linker HOSTLD
259   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
260   --host-libs=HLIBS        use libs HLIBS when linking for host
261   --host-os=OS             compiler host OS [$target_os]
262   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
263   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
264   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
265   --extra-libs=ELIBS       add ELIBS [$ELIBS]
266   --extra-version=STRING   version string suffix []
267   --optflags=OPTFLAGS      override optimization-related compiler flags
268   --build-suffix=SUFFIX    library name suffix []
269   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
270   --progs-suffix=SUFFIX    program name suffix []
271   --arch=ARCH              select architecture [$arch]
272   --cpu=CPU                select the minimum required CPU (affects
273                            instruction selection, may crash on older CPUs)
274   --enable-pic             build position-independent code
275   --enable-sram            allow use of on-chip SRAM
276   --enable-thumb           compile for Thumb instruction set
277   --disable-symver         disable symbol versioning
278   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
279   --disable-safe-bitstream-reader
280                            disable buffer boundary checking in bitreaders
281                            (faster, but may crash)
282   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
283   --enable-lto             use link-time optimization
284
285 Optimization options (experts only):
286   --disable-asm            disable all assembler optimizations
287   --disable-altivec        disable AltiVec optimizations
288   --disable-amd3dnow       disable 3DNow! optimizations
289   --disable-amd3dnowext    disable 3DNow! extended optimizations
290   --disable-mmx            disable MMX optimizations
291   --disable-mmxext         disable MMXEXT optimizations
292   --disable-sse            disable SSE optimizations
293   --disable-sse2           disable SSE2 optimizations
294   --disable-sse3           disable SSE3 optimizations
295   --disable-ssse3          disable SSSE3 optimizations
296   --disable-sse4           disable SSE4 optimizations
297   --disable-sse42          disable SSE4.2 optimizations
298   --disable-avx            disable AVX optimizations
299   --disable-fma4           disable FMA4 optimizations
300   --disable-armv5te        disable armv5te optimizations
301   --disable-armv6          disable armv6 optimizations
302   --disable-armv6t2        disable armv6t2 optimizations
303   --disable-vfp            disable VFP optimizations
304   --disable-neon           disable NEON optimizations
305   --disable-vis            disable VIS optimizations
306   --disable-inline-asm     disable use of inline assembler
307   --disable-yasm           disable use of yasm assembler
308   --disable-mips32r2       disable MIPS32R2 optimizations
309   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
310   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
311   --disable-mipsfpu        disable floating point MIPS optimizations
312   --disable-fast-unaligned consider unaligned accesses slow
313
314 Developer options (useful when working on FFmpeg itself):
315   --enable-coverage        build with test coverage instrumentation
316   --disable-debug          disable debugging symbols
317   --enable-debug=LEVEL     set the debug level [$debuglevel]
318   --disable-optimizations  disable compiler optimizations
319   --enable-extra-warnings  enable more compiler warnings
320   --disable-stripping      disable stripping of executables and shared libraries
321   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
322                            2 causes a slowdown at runtime.
323   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
324   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
325                            leaks and errors, using the specified valgrind binary.
326                            Cannot be combined with --target-exec
327   --enable-ftrapv          Trap arithmetic overflows
328   --samples=PATH           location of test samples for FATE, if not set use
329                            \$FATE_SAMPLES at make invocation time.
330   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
331                            should be used only for debugging purposes)
332   --enable-random          randomly enable/disable components
333   --disable-random
334   --enable-random=LIST     randomly enable/disable specific components or
335   --disable-random=LIST    component groups. LIST is a comma-separated list
336                            of NAME[:PROB] entries where NAME is a component
337                            (group) and PROB the probability associated with
338                            NAME (default 0.5).
339   --random-seed=VALUE      seed value for --enable/disable-random
340
341 NOTE: Object files are built at the place where configure is launched.
342 EOF
343   exit 0
344 }
345
346 quotes='""'
347
348 log(){
349     echo "$@" >> $logfile
350 }
351
352 log_file(){
353     log BEGIN $1
354     pr -n -t $1 >> $logfile
355     log END $1
356 }
357
358 echolog(){
359     log "$@"
360     echo "$@"
361 }
362
363 warn(){
364     log "WARNING: $*"
365     WARNINGS="${WARNINGS}WARNING: $*\n"
366 }
367
368 die(){
369     echolog "$@"
370     cat <<EOF
371
372 If you think configure made a mistake, make sure you are using the latest
373 version from Git.  If the latest version fails, report the problem to the
374 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
375 EOF
376     if disabled logging; then
377         cat <<EOF
378 Rerun configure with logging enabled (do not use --disable-logging), and
379 include the log this produces with your report.
380 EOF
381     else
382         cat <<EOF
383 Include the log file "$logfile" produced by configure as this will help
384 solving the problem.
385 EOF
386     fi
387     exit 1
388 }
389
390 # Avoid locale weirdness, besides we really just want to translate ASCII.
391 toupper(){
392     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
393 }
394
395 tolower(){
396     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
397 }
398
399 c_escape(){
400     echo "$*" | sed 's/["\\]/\\\0/g'
401 }
402
403 sh_quote(){
404     v=$(echo "$1" | sed "s/'/'\\\\''/g")
405     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
406     echo "$v"
407 }
408
409 cleanws(){
410     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
411 }
412
413 filter(){
414     pat=$1
415     shift
416     for v; do
417         eval "case $v in $pat) echo $v ;; esac"
418     done
419 }
420
421 filter_out(){
422     pat=$1
423     shift
424     for v; do
425         eval "case $v in $pat) ;; *) echo $v ;; esac"
426     done
427 }
428
429 map(){
430     m=$1
431     shift
432     for v; do eval $m; done
433 }
434
435 add_suffix(){
436     suffix=$1
437     shift
438     for v; do echo ${v}${suffix}; done
439 }
440
441 set_all(){
442     value=$1
443     shift
444     for var in $*; do
445         eval $var=$value
446     done
447 }
448
449 set_weak(){
450     value=$1
451     shift
452     for var; do
453         eval : \${$var:=$value}
454     done
455 }
456
457 set_safe(){
458     var=$1
459     shift
460     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
461 }
462
463 get_safe(){
464     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
465 }
466
467 pushvar(){
468     for var in $*; do
469         eval level=\${${var}_level:=0}
470         eval ${var}_${level}="\$$var"
471         eval ${var}_level=$(($level+1))
472     done
473 }
474
475 popvar(){
476     for var in $*; do
477         eval level=\${${var}_level:-0}
478         test $level = 0 && continue
479         eval level=$(($level-1))
480         eval $var="\${${var}_${level}}"
481         eval ${var}_level=$level
482         eval unset ${var}_${level}
483     done
484 }
485
486 enable(){
487     set_all yes $*
488 }
489
490 disable(){
491     set_all no $*
492 }
493
494 enable_weak(){
495     set_weak yes $*
496 }
497
498 disable_weak(){
499     set_weak no $*
500 }
501
502 enable_safe(){
503     for var; do
504         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
505     done
506 }
507
508 disable_safe(){
509     for var; do
510         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511     done
512 }
513
514 do_enable_deep(){
515     for var; do
516         enabled $var && continue
517         eval sel="\$${var}_select"
518         eval sgs="\$${var}_suggest"
519         pushvar var sgs
520         enable_deep $sel
521         popvar sgs
522         enable_deep_weak $sgs
523         popvar var
524     done
525 }
526
527 enable_deep(){
528     do_enable_deep $*
529     enable $*
530 }
531
532 enable_deep_weak(){
533     do_enable_deep $*
534     enable_weak $*
535 }
536
537 enabled(){
538     test "${1#!}" = "$1" && op== || op=!=
539     eval test "x\$${1#!}" $op "xyes"
540 }
541
542 disabled(){
543     test "${1#!}" = "$1" && op== || op=!=
544     eval test "x\$${1#!}" $op "xno"
545 }
546
547 enabled_all(){
548     for opt; do
549         enabled $opt || return 1
550     done
551 }
552
553 disabled_all(){
554     for opt; do
555         disabled $opt || return 1
556     done
557 }
558
559 enabled_any(){
560     for opt; do
561         enabled $opt && return 0
562     done
563 }
564
565 disabled_any(){
566     for opt; do
567         disabled $opt && return 0
568     done
569     return 1
570 }
571
572 set_default(){
573     for opt; do
574         eval : \${$opt:=\$${opt}_default}
575     done
576 }
577
578 is_in(){
579     value=$1
580     shift
581     for var in $*; do
582         [ $var = $value ] && return 0
583     done
584     return 1
585 }
586
587 do_check_deps(){
588     for cfg; do
589         cfg="${cfg#!}"
590         enabled ${cfg}_checking && die "Circular dependency for $cfg."
591         disabled ${cfg}_checking && continue
592         enable ${cfg}_checking
593         append allopts $cfg
594
595         eval dep_all="\$${cfg}_deps"
596         eval dep_any="\$${cfg}_deps_any"
597         eval dep_sel="\$${cfg}_select"
598         eval dep_sgs="\$${cfg}_suggest"
599         eval dep_ifa="\$${cfg}_if"
600         eval dep_ifn="\$${cfg}_if_any"
601
602         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
603         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
604         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
605
606         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
607         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
608         enabled_all  $dep_all || disable $cfg
609         enabled_any  $dep_any || disable $cfg
610         disabled_any $dep_sel && disable $cfg
611
612         if enabled $cfg; then
613             enable_deep $dep_sel
614             enable_deep_weak $dep_sgs
615         fi
616
617         disable ${cfg}_checking
618     done
619 }
620
621 check_deps(){
622     unset allopts
623
624     do_check_deps "$@"
625
626     for cfg in $allopts; do
627         enabled $cfg || continue
628         eval dep_extralibs="\$${cfg}_extralibs"
629         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
630     done
631 }
632
633 print_config(){
634     pfx=$1
635     files=$2
636     shift 2
637     map 'eval echo "$v \${$v:-no}"' "$@" |
638     awk "BEGIN { split(\"$files\", files) }
639         {
640             c = \"$pfx\" toupper(\$1);
641             v = \$2;
642             sub(/yes/, 1, v);
643             sub(/no/,  0, v);
644             for (f in files) {
645                 file = files[f];
646                 if (file ~ /\\.h\$/) {
647                     printf(\"#define %s %d\\n\", c, v) >>file;
648                 } else if (file ~ /\\.asm\$/) {
649                     printf(\"%%define %s %d\\n\", c, v) >>file;
650                 } else if (file ~ /\\.mak\$/) {
651                     n = -v ? \"\" : \"!\";
652                     printf(\"%s%s=yes\\n\", n, c) >>file;
653                 }
654             }
655         }"
656 }
657
658 print_enabled(){
659     suf=$1
660     shift
661     for v; do
662         enabled $v && printf "%s\n" ${v%$suf};
663     done
664 }
665
666 append(){
667     var=$1
668     shift
669     eval "$var=\"\$$var $*\""
670 }
671
672 prepend(){
673     var=$1
674     shift
675     eval "$var=\"$* \$$var\""
676 }
677
678 add_cppflags(){
679     append CPPFLAGS "$@"
680 }
681
682 add_cflags(){
683     append CFLAGS $($cflags_filter "$@")
684 }
685
686 add_cxxflags(){
687     append CXXFLAGS $($cflags_filter "$@")
688 }
689
690 add_asflags(){
691     append ASFLAGS $($asflags_filter "$@")
692 }
693
694 add_ldflags(){
695     append LDFLAGS $($ldflags_filter "$@")
696 }
697
698 add_extralibs(){
699     prepend extralibs $($ldflags_filter "$@")
700 }
701
702 add_host_cflags(){
703     append host_cflags $($host_cflags_filter "$@")
704 }
705
706 add_host_ldflags(){
707     append host_ldflags $($host_ldflags_filter "$@")
708 }
709
710 add_compat(){
711     append compat_objs $1
712     shift
713     map 'add_cppflags -D$v' "$@"
714 }
715
716 check_cmd(){
717     log "$@"
718     "$@" >> $logfile 2>&1
719 }
720
721 cc_o(){
722     eval printf '%s\\n' $CC_O
723 }
724
725 cc_e(){
726     eval printf '%s\\n' $CC_E
727 }
728
729 check_cc(){
730     log check_cc "$@"
731     cat > $TMPC
732     log_file $TMPC
733     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
734 }
735
736 check_cxx(){
737     log check_cxx "$@"
738     cat > $TMPCPP
739     log_file $TMPCPP
740     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
741 }
742
743 check_cpp(){
744     log check_cpp "$@"
745     cat > $TMPC
746     log_file $TMPC
747     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
748 }
749
750 as_o(){
751     eval printf '%s\\n' $AS_O
752 }
753
754 check_as(){
755     log check_as "$@"
756     cat > $TMPS
757     log_file $TMPS
758     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
759 }
760
761 check_inline_asm(){
762     log check_inline_asm "$@"
763     name="$1"
764     code="$2"
765     shift 2
766     disable $name
767     check_cc "$@" <<EOF && enable $name
768 void foo(void){ __asm__ volatile($code); }
769 EOF
770 }
771
772 check_insn(){
773     log check_insn "$@"
774     check_inline_asm ${1}_inline "\"$2\""
775     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
776 }
777
778 check_yasm(){
779     log check_yasm "$@"
780     echo "$1" > $TMPS
781     log_file $TMPS
782     shift 1
783     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
784 }
785
786 ld_o(){
787     eval printf '%s\\n' $LD_O
788 }
789
790 check_ld(){
791     log check_ld "$@"
792     type=$1
793     shift 1
794     flags=$(filter_out '-l*|*.so' $@)
795     libs=$(filter '-l*|*.so' $@)
796     check_$type $($cflags_filter $flags) || return
797     flags=$($ldflags_filter $flags)
798     libs=$($ldflags_filter $libs)
799     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
800 }
801
802 check_code(){
803     log check_code "$@"
804     check=$1
805     headers=$2
806     code=$3
807     shift 3
808     {
809         for hdr in $headers; do
810             echo "#include <$hdr>"
811         done
812         echo "int main(void) { $code; return 0; }"
813     } | check_$check "$@"
814 }
815
816 check_cppflags(){
817     log check_cppflags "$@"
818     check_cc "$@" <<EOF && append CPPFLAGS "$@"
819 int x;
820 EOF
821 }
822
823 check_cflags(){
824     log check_cflags "$@"
825     set -- $($cflags_filter "$@")
826     check_cc "$@" <<EOF && append CFLAGS "$@"
827 int x;
828 EOF
829 }
830
831 check_cxxflags(){
832     log check_cxxflags "$@"
833     set -- $($cflags_filter "$@")
834     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
835 int x;
836 EOF
837 }
838
839 test_ldflags(){
840     log test_ldflags "$@"
841     check_ld "cc" "$@" <<EOF
842 int main(void){ return 0; }
843 EOF
844 }
845
846 check_ldflags(){
847     log check_ldflags "$@"
848     test_ldflags "$@" && add_ldflags "$@"
849 }
850
851 check_header(){
852     log check_header "$@"
853     header=$1
854     shift
855     disable_safe $header
856     check_cpp "$@" <<EOF && enable_safe $header
857 #include <$header>
858 int x;
859 EOF
860 }
861
862 check_func(){
863     log check_func "$@"
864     func=$1
865     shift
866     disable $func
867     check_ld "cc" "$@" <<EOF && enable $func
868 extern int $func();
869 int main(void){ $func(); }
870 EOF
871 }
872
873 check_mathfunc(){
874     log check_mathfunc "$@"
875     func=$1
876     narg=$2
877     shift 2
878     test $narg = 2 && args="f, g" || args="f"
879     disable $func
880     check_ld "cc" "$@" <<EOF && enable $func
881 #include <math.h>
882 float foo(float f, float g) { return $func($args); }
883 int main(void){ return (int) foo; }
884 EOF
885 }
886
887 check_func_headers(){
888     log check_func_headers "$@"
889     headers=$1
890     funcs=$2
891     shift 2
892     {
893         for hdr in $headers; do
894             echo "#include <$hdr>"
895         done
896         for func in $funcs; do
897             echo "long check_$func(void) { return (long) $func; }"
898         done
899         echo "int main(void) { return 0; }"
900     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
901 }
902
903 check_class_headers_cpp(){
904     log check_class_headers_cpp "$@"
905     headers=$1
906     classes=$2
907     shift 2
908     {
909         for hdr in $headers; do
910             echo "#include <$hdr>"
911         done
912         echo "int main(void) { "
913         i=1
914         for class in $classes; do
915             echo "$class obj$i;"
916             i=$(expr $i + 1)
917         done
918         echo "return 0; }"
919     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
920 }
921
922 check_cpp_condition(){
923     log check_cpp_condition "$@"
924     header=$1
925     condition=$2
926     shift 2
927     check_cpp "$@" <<EOF
928 #include <$header>
929 #if !($condition)
930 #error "unsatisfied condition: $condition"
931 #endif
932 EOF
933 }
934
935 check_lib(){
936     log check_lib "$@"
937     header="$1"
938     func="$2"
939     shift 2
940     check_header $header && check_func $func "$@" && add_extralibs "$@"
941 }
942
943 check_lib2(){
944     log check_lib2 "$@"
945     headers="$1"
946     funcs="$2"
947     shift 2
948     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
949 }
950
951 check_lib_cpp(){
952     log check_lib_cpp "$@"
953     headers="$1"
954     classes="$2"
955     shift 2
956     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
957 }
958
959 check_pkg_config(){
960     log check_pkg_config "$@"
961     pkg="$1"
962     headers="$2"
963     funcs="$3"
964     shift 3
965     $pkg_config --exists $pkg 2>/dev/null || return
966     pkg_cflags=$($pkg_config --cflags $pkg)
967     pkg_libs=$($pkg_config --libs $pkg)
968     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
969         set_safe ${pkg}_cflags $pkg_cflags   &&
970         set_safe ${pkg}_libs   $pkg_libs
971 }
972
973 check_exec(){
974     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
975 }
976
977 check_exec_crash(){
978     code=$(cat)
979
980     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
981     # are safe but may not be available everywhere.  Thus we use
982     # raise(SIGTERM) instead.  The check is run in a subshell so we
983     # can redirect the "Terminated" message from the shell.  SIGBUS
984     # is not defined by standard C so it is used conditionally.
985
986     (check_exec "$@") >> $logfile 2>&1 <<EOF
987 #include <signal.h>
988 static void sighandler(int sig){
989     raise(SIGTERM);
990 }
991 int func(void){
992     $code
993 }
994 int (*func_ptr)(void) = func;
995 int main(void){
996     signal(SIGILL, sighandler);
997     signal(SIGFPE, sighandler);
998     signal(SIGSEGV, sighandler);
999 #ifdef SIGBUS
1000     signal(SIGBUS, sighandler);
1001 #endif
1002     return func_ptr();
1003 }
1004 EOF
1005 }
1006
1007 check_type(){
1008     log check_type "$@"
1009     headers=$1
1010     type=$2
1011     shift 2
1012     disable_safe "$type"
1013     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1014 }
1015
1016 check_struct(){
1017     log check_type "$@"
1018     headers=$1
1019     struct=$2
1020     member=$3
1021     shift 3
1022     disable_safe "${struct}_${member}"
1023     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1024         enable_safe "${struct}_${member}"
1025 }
1026
1027 require(){
1028     name="$1"
1029     header="$2"
1030     func="$3"
1031     shift 3
1032     check_lib $header $func "$@" || die "ERROR: $name not found"
1033 }
1034
1035 require2(){
1036     name="$1"
1037     headers="$2"
1038     func="$3"
1039     shift 3
1040     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1041 }
1042
1043 require_cpp(){
1044     name="$1"
1045     headers="$2"
1046     classes="$3"
1047     shift 3
1048     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1049 }
1050
1051 require_pkg_config(){
1052     pkg="$1"
1053     check_pkg_config "$@" || die "ERROR: $pkg not found"
1054     add_cflags    $(get_safe ${pkg}_cflags)
1055     add_extralibs $(get_safe ${pkg}_libs)
1056 }
1057
1058 hostcc_o(){
1059     eval printf '%s\\n' $HOSTCC_O
1060 }
1061
1062 check_host_cc(){
1063     log check_host_cc "$@"
1064     cat > $TMPC
1065     log_file $TMPC
1066     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1067 }
1068
1069 check_host_cflags(){
1070     log check_host_cflags "$@"
1071     set -- $($host_cflags_filter "$@")
1072     check_host_cc "$@" <<EOF && append host_cflags "$@"
1073 int x;
1074 EOF
1075 }
1076
1077 apply(){
1078     file=$1
1079     shift
1080     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1081 }
1082
1083 cp_if_changed(){
1084     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1085     mkdir -p "$(dirname $2)"
1086     $cp_f "$1" "$2"
1087 }
1088
1089 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1090 # system-dependent things.
1091
1092 COMPONENT_LIST="
1093     bsfs
1094     decoders
1095     demuxers
1096     encoders
1097     filters
1098     hwaccels
1099     indevs
1100     muxers
1101     outdevs
1102     parsers
1103     protocols
1104 "
1105
1106 DOCUMENT_LIST="
1107     doc
1108     htmlpages
1109     manpages
1110     podpages
1111     txtpages
1112 "
1113
1114 HWACCEL_LIST="
1115     dxva2
1116     vaapi
1117     vda
1118     vdpau
1119 "
1120
1121 LIBRARY_LIST="
1122     avcodec
1123     avdevice
1124     avfilter
1125     avformat
1126     avresample
1127     avutil
1128     postproc
1129     swresample
1130     swscale
1131 "
1132
1133 PROGRAM_LIST="
1134     ffplay
1135     ffprobe
1136     ffserver
1137     ffmpeg
1138 "
1139
1140 CONFIG_LIST="
1141     $COMPONENT_LIST
1142     $DOCUMENT_LIST
1143     $HWACCEL_LIST
1144     $LIBRARY_LIST
1145     $PROGRAM_LIST
1146     avisynth
1147     bzlib
1148     crystalhd
1149     dct
1150     dwt
1151     fast_unaligned
1152     fft
1153     fontconfig
1154     frei0r
1155     ftrapv
1156     gnutls
1157     gpl
1158     gray
1159     hardcoded_tables
1160     incompatible_fork_abi
1161     libaacplus
1162     libass
1163     libbluray
1164     libcaca
1165     libcdio
1166     libcelt
1167     libdc1394
1168     libfaac
1169     libfdk_aac
1170     libflite
1171     libfreetype
1172     libgsm
1173     libiec61883
1174     libilbc
1175     libmodplug
1176     libmp3lame
1177     libnut
1178     libopencore_amrnb
1179     libopencore_amrwb
1180     libopencv
1181     libopenjpeg
1182     libopus
1183     libpulse
1184     librtmp
1185     libschroedinger
1186     libsoxr
1187     libspeex
1188     libstagefright_h264
1189     libtheora
1190     libtwolame
1191     libutvideo
1192     libv4l2
1193     libvo_aacenc
1194     libvo_amrwbenc
1195     libvorbis
1196     libvpx
1197     libx264
1198     libxavs
1199     libxvid
1200     lsp
1201     lzo
1202     mdct
1203     memalign_hack
1204     memory_poisoning
1205     network
1206     nonfree
1207     openal
1208     openssl
1209     pic
1210     rdft
1211     runtime_cpudetect
1212     safe_bitstream_reader
1213     shared
1214     small
1215     sram
1216     static
1217     swscale_alpha
1218     thumb
1219     version3
1220     xmm_clobber_test
1221     x11grab
1222     zlib
1223 "
1224
1225 THREADS_LIST='
1226     pthreads
1227     w32threads
1228     os2threads
1229 '
1230
1231 ARCH_LIST='
1232     aarch64
1233     alpha
1234     arm
1235     avr32
1236     avr32_ap
1237     avr32_uc
1238     bfin
1239     ia64
1240     m68k
1241     mips
1242     mips64
1243     parisc
1244     ppc
1245     ppc64
1246     s390
1247     sh4
1248     sparc
1249     sparc64
1250     tilegx
1251     tilepro
1252     tomi
1253     x86
1254     x86_32
1255     x86_64
1256 '
1257
1258 ARCH_EXT_LIST_ARM='
1259     armv5te
1260     armv6
1261     armv6t2
1262     neon
1263     vfp
1264     vfpv3
1265 '
1266
1267 ARCH_EXT_LIST_X86='
1268     amd3dnow
1269     amd3dnowext
1270     avx
1271     fma4
1272     mmx
1273     mmxext
1274     sse
1275     sse2
1276     sse3
1277     sse4
1278     sse42
1279     ssse3
1280 '
1281
1282 ARCH_EXT_LIST="
1283     $ARCH_EXT_LIST_ARM
1284     $ARCH_EXT_LIST_X86
1285     altivec
1286     ppc4xx
1287     vis
1288     mipsfpu
1289     mips32r2
1290     mipsdspr1
1291     mipsdspr2
1292 "
1293
1294 HAVE_LIST_CMDLINE='
1295     inline_asm
1296     symver
1297     yasm
1298 '
1299
1300 HAVE_LIST_PUB='
1301     bigendian
1302     fast_unaligned
1303     incompatible_fork_abi
1304 '
1305
1306 MATH_FUNCS="
1307     atanf
1308     atan2f
1309     cbrt
1310     cbrtf
1311     cosf
1312     exp2
1313     exp2f
1314     expf
1315     isinf
1316     isnan
1317     ldexpf
1318     llrint
1319     llrintf
1320     log2
1321     log2f
1322     log10f
1323     lrint
1324     lrintf
1325     powf
1326     rint
1327     round
1328     roundf
1329     sinf
1330     trunc
1331     truncf
1332 "
1333
1334 HAVE_LIST="
1335     $ARCH_EXT_LIST
1336     $(add_suffix _external $ARCH_EXT_LIST)
1337     $(add_suffix _inline   $ARCH_EXT_LIST)
1338     $HAVE_LIST_CMDLINE
1339     $HAVE_LIST_PUB
1340     $THREADS_LIST
1341     $MATH_FUNCS
1342     access
1343     aligned_malloc
1344     aligned_stack
1345     alsa_asoundlib_h
1346     altivec_h
1347     arpa_inet_h
1348     asm_mod_q
1349     asm_mod_y
1350     asm_types_h
1351     attribute_may_alias
1352     attribute_packed
1353     cdio_paranoia_h
1354     cdio_paranoia_paranoia_h
1355     clock_gettime
1356     closesocket
1357     cmov
1358     CommandLineToArgvW
1359     cpunop
1360     CryptGenRandom
1361     dcbzl
1362     dev_bktr_ioctl_bt848_h
1363     dev_bktr_ioctl_meteor_h
1364     dev_ic_bt8xx_h
1365     dev_video_bktr_ioctl_bt848_h
1366     dev_video_meteor_ioctl_meteor_h
1367     direct_h
1368     dlfcn_h
1369     dlopen
1370     dos_paths
1371     dxva_h
1372     ebp_available
1373     ebx_available
1374     fast_64bit
1375     fast_clz
1376     fast_cmov
1377     fcntl
1378     fork
1379     getaddrinfo
1380     gethrtime
1381     getopt
1382     GetProcessAffinityMask
1383     GetProcessMemoryInfo
1384     GetProcessTimes
1385     GetSystemTimeAsFileTime
1386     getrusage
1387     getservbyport
1388     gettimeofday
1389     glob
1390     gnu_as
1391     gsm_h
1392     ibm_asm
1393     inet_aton
1394     io_h
1395     isatty
1396     jack_port_get_latency_range
1397     kbhit
1398     ldbrx
1399     libdc1394_1
1400     libdc1394_2
1401     local_aligned_16
1402     local_aligned_8
1403     localtime_r
1404     loongson
1405     lzo1x_999_compress
1406     machine_ioctl_bt848_h
1407     machine_ioctl_meteor_h
1408     makeinfo
1409     malloc_h
1410     MapViewOfFile
1411     memalign
1412     mkstemp
1413     mm_empty
1414     mmap
1415     mprotect
1416     msvcrt
1417     nanosleep
1418     openjpeg_1_5_openjpeg_h
1419     PeekNamedPipe
1420     perl
1421     pod2man
1422     poll_h
1423     posix_memalign
1424     pthread_cancel
1425     rdtsc
1426     rsync_contimeout
1427     sched_getaffinity
1428     sdl
1429     sdl_video_size
1430     SetConsoleTextAttribute
1431     setmode
1432     setrlimit
1433     Sleep
1434     sndio_h
1435     socklen_t
1436     soundcard_h
1437     strerror_r
1438     struct_addrinfo
1439     struct_group_source_req
1440     struct_ip_mreq_source
1441     struct_ipv6_mreq
1442     struct_pollfd
1443     struct_rusage_ru_maxrss
1444     struct_sctp_event_subscribe
1445     struct_sockaddr_in6
1446     struct_sockaddr_sa_len
1447     struct_sockaddr_storage
1448     struct_v4l2_frmivalenum_discrete
1449     symver_asm_label
1450     symver_gnu_asm
1451     sysconf
1452     sysctl
1453     sys_mman_h
1454     sys_param_h
1455     sys_resource_h
1456     sys_select_h
1457     sys_soundcard_h
1458     sys_time_h
1459     sys_videoio_h
1460     termios_h
1461     texi2html
1462     threads
1463     unistd_h
1464     usleep
1465     vfp_args
1466     VirtualAlloc
1467     windows_h
1468     winsock2_h
1469     xform_asm
1470     xmm_clobbers
1471 "
1472
1473 # options emitted with CONFIG_ prefix but not available on the command line
1474 CONFIG_EXTRA="
1475     aandcttables
1476     ac3dsp
1477     error_resilience
1478     gcrypt
1479     golomb
1480     gplv3
1481     h264chroma
1482     h264dsp
1483     h264pred
1484     h264qpel
1485     huffman
1486     lgplv3
1487     lpc
1488     mpegaudio
1489     mpegaudiodsp
1490     mpegvideo
1491     mpegvideoenc
1492     nettle
1493     rangecoder
1494     rtpdec
1495     rtpenc_chain
1496     sinewin
1497     videodsp
1498     vp3dsp
1499 "
1500
1501 CMDLINE_SELECT="
1502     $ARCH_EXT_LIST
1503     $CONFIG_LIST
1504     $HAVE_LIST_CMDLINE
1505     $THREADS_LIST
1506     asm
1507     coverage
1508     cross_compile
1509     debug
1510     extra_warnings
1511     logging
1512     lto
1513     optimizations
1514     stripping
1515 "
1516
1517 PATHS_LIST='
1518     bindir
1519     datadir
1520     incdir
1521     libdir
1522     mandir
1523     prefix
1524     shlibdir
1525 '
1526
1527 CMDLINE_SET="
1528     $PATHS_LIST
1529     ar
1530     arch
1531     as
1532     assert_level
1533     build_suffix
1534     cc
1535     cpu
1536     cross_prefix
1537     cxx
1538     dep_cc
1539     extra_version
1540     host_cc
1541     host_cflags
1542     host_ld
1543     host_ldflags
1544     host_libs
1545     host_os
1546     install
1547     ld
1548     logfile
1549     malloc_prefix
1550     nm
1551     optflags
1552     pkg_config
1553     progs_suffix
1554     random_seed
1555     samples
1556     strip
1557     sysinclude
1558     sysroot
1559     target_exec
1560     target_os
1561     target_path
1562     toolchain
1563     valgrind
1564     yasmexe
1565 "
1566
1567 CMDLINE_APPEND="
1568     extra_cflags
1569     extra_cxxflags
1570 "
1571
1572 # code dependency declarations
1573
1574 # architecture extensions
1575
1576 armv5te_deps="arm"
1577 armv6_deps="arm"
1578 armv6t2_deps="arm"
1579 neon_deps="arm"
1580 vfp_deps="arm"
1581 vfpv3_deps="vfp"
1582
1583 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1584
1585 mipsfpu_deps="mips"
1586 mips32r2_deps="mips"
1587 mipsdspr1_deps="mips"
1588 mipsdspr2_deps="mips"
1589
1590 altivec_deps="ppc"
1591 ppc4xx_deps="ppc"
1592
1593 vis_deps="sparc"
1594
1595 x86_64_suggest="cmov fast_cmov"
1596
1597 amd3dnow_deps="mmx"
1598 amd3dnowext_deps="amd3dnow"
1599 mmx_deps="x86"
1600 mmxext_deps="mmx"
1601 sse_deps="mmxext"
1602 sse2_deps="sse"
1603 sse3_deps="sse2"
1604 ssse3_deps="sse3"
1605 sse4_deps="ssse3"
1606 sse42_deps="sse4"
1607 avx_deps="sse42"
1608 fma4_deps="avx"
1609
1610 mmx_external_deps="yasm"
1611 mmx_inline_deps="inline_asm"
1612 mmx_suggest="mmx_external mmx_inline"
1613
1614 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1615     eval dep=\$${ext}_deps
1616     eval ${ext}_external_deps='"${dep}_external"'
1617     eval ${ext}_inline_deps='"${dep}_inline"'
1618     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1619 done
1620
1621 aligned_stack_if_any="ppc x86"
1622 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1623 fast_clz_if_any="alpha avr32 mips ppc x86"
1624 fast_unaligned_if_any="ppc x86"
1625
1626 inline_asm_deps="!tms470"
1627 need_memalign="altivec neon sse"
1628
1629 symver_if_any="symver_asm_label symver_gnu_asm"
1630
1631 log2_deps="!msvcrt"
1632
1633 # subsystems
1634 dct_select="rdft"
1635 mdct_select="fft"
1636 rdft_select="fft"
1637 mpegaudio_select="mpegaudiodsp"
1638 mpegaudiodsp_select="dct"
1639 mpegvideo_select="videodsp"
1640 mpegvideoenc_select="mpegvideo"
1641
1642 # decoders / encoders
1643 aac_decoder_select="mdct sinewin"
1644 aac_encoder_select="mdct sinewin"
1645 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1646 ac3_decoder_select="mdct ac3dsp ac3_parser"
1647 ac3_encoder_select="mdct ac3dsp"
1648 ac3_fixed_encoder_select="mdct ac3dsp"
1649 alac_encoder_select="lpc"
1650 amrnb_decoder_select="lsp"
1651 amrwb_decoder_select="lsp"
1652 amv_encoder_select="aandcttables"
1653 atrac1_decoder_select="mdct sinewin"
1654 atrac3_decoder_select="mdct"
1655 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1656 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1657 cavs_decoder_select="golomb mpegvideo"
1658 comfortnoise_encoder_select="lpc"
1659 cook_decoder_select="mdct sinewin"
1660 cscd_decoder_select="lzo"
1661 cscd_decoder_suggest="zlib"
1662 dca_decoder_select="mdct"
1663 dirac_decoder_select="dwt golomb videodsp"
1664 dnxhd_encoder_select="aandcttables mpegvideoenc"
1665 dxa_decoder_select="zlib"
1666 eac3_decoder_select="ac3_decoder"
1667 eac3_encoder_select="ac3_encoder"
1668 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1669 eatgq_decoder_select="aandcttables"
1670 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1671 exr_decoder_select="zlib"
1672 ffv1_decoder_select="golomb rangecoder"
1673 ffv1_encoder_select="rangecoder"
1674 ffvhuff_encoder_select="huffman"
1675 flac_decoder_select="golomb"
1676 flac_encoder_select="golomb lpc"
1677 flashsv_decoder_select="zlib"
1678 flashsv_encoder_select="zlib"
1679 flashsv2_encoder_select="zlib"
1680 flashsv2_decoder_select="zlib"
1681 flv_decoder_select="h263_decoder"
1682 flv_encoder_select="h263_encoder"
1683 fraps_decoder_select="huffman"
1684 h261_decoder_select="error_resilience mpegvideo"
1685 h261_encoder_select="aandcttables mpegvideoenc"
1686 h263_decoder_select="error_resilience h263_parser mpegvideo"
1687 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1688 h263i_decoder_select="h263_decoder"
1689 h263p_encoder_select="h263_encoder"
1690 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1691 huffyuv_encoder_select="huffman"
1692 iac_decoder_select="fft mdct sinewin"
1693 imc_decoder_select="fft mdct sinewin"
1694 jpegls_decoder_select="golomb"
1695 jpegls_encoder_select="golomb"
1696 ljpeg_encoder_select="aandcttables mpegvideoenc"
1697 loco_decoder_select="golomb"
1698 mdec_decoder_select="error_resilience mpegvideo"
1699 mjpeg_encoder_select="aandcttables mpegvideoenc"
1700 mlp_decoder_select="mlp_parser"
1701 mp1_decoder_select="mpegaudio"
1702 mp1float_decoder_select="mpegaudio"
1703 mp2_decoder_select="mpegaudio"
1704 mp2float_decoder_select="mpegaudio"
1705 mp3_decoder_select="mpegaudio"
1706 mp3adu_decoder_select="mpegaudio"
1707 mp3adufloat_decoder_select="mpegaudio"
1708 mp3float_decoder_select="mpegaudio"
1709 mp3on4_decoder_select="mpegaudio"
1710 mp3on4float_decoder_select="mpegaudio"
1711 mpc7_decoder_select="mpegaudiodsp"
1712 mpc8_decoder_select="mpegaudiodsp"
1713 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1714 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1715 mpeg1video_decoder_select="error_resilience mpegvideo"
1716 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1717 mpeg2video_decoder_select="error_resilience mpegvideo"
1718 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1719 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1720 mpeg4_encoder_select="h263_encoder"
1721 msmpeg4v1_decoder_select="h263_decoder"
1722 msmpeg4v1_encoder_select="h263_encoder"
1723 msmpeg4v2_decoder_select="h263_decoder"
1724 msmpeg4v2_encoder_select="h263_encoder"
1725 msmpeg4v3_decoder_select="h263_decoder"
1726 msmpeg4v3_encoder_select="h263_encoder"
1727 mss2_decoder_select="vc1_decoder"
1728 nellymoser_decoder_select="mdct sinewin"
1729 nellymoser_encoder_select="mdct sinewin"
1730 nuv_decoder_select="lzo"
1731 png_decoder_select="zlib"
1732 png_encoder_select="zlib"
1733 qcelp_decoder_select="lsp"
1734 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1735 ra_144_encoder_select="lpc"
1736 ralf_decoder_select="golomb"
1737 rv10_decoder_select="h263_decoder"
1738 rv10_encoder_select="h263_encoder"
1739 rv20_decoder_select="h263_decoder"
1740 rv20_encoder_select="h263_encoder"
1741 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1742 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1743 shorten_decoder_select="golomb"
1744 sipr_decoder_select="lsp"
1745 snow_decoder_select="dwt rangecoder"
1746 snow_encoder_select="aandcttables dwt error_resilience mpegvideoenc rangecoder"
1747 sonic_decoder_select="golomb"
1748 sonic_encoder_select="golomb"
1749 sonic_ls_encoder_select="golomb"
1750 svq1_decoder_select="error_resilience mpegvideo"
1751 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1752 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1753 svq3_decoder_suggest="zlib"
1754 theora_decoder_select="vp3_decoder"
1755 tiff_decoder_suggest="zlib"
1756 tiff_encoder_suggest="zlib"
1757 truehd_decoder_select="mlp_parser"
1758 tscc_decoder_select="zlib"
1759 twinvq_decoder_select="mdct lsp sinewin"
1760 utvideo_encoder_select="huffman"
1761 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1762 vc1image_decoder_select="vc1_decoder"
1763 vorbis_decoder_select="mdct"
1764 vorbis_encoder_select="mdct"
1765 vp3_decoder_select="vp3dsp videodsp"
1766 vp5_decoder_select="vp3dsp videodsp"
1767 vp6_decoder_select="huffman vp3dsp videodsp"
1768 vp6a_decoder_select="vp6_decoder"
1769 vp6f_decoder_select="vp6_decoder"
1770 vp8_decoder_select="h264pred videodsp"
1771 wmapro_decoder_select="mdct sinewin"
1772 wmav1_decoder_select="mdct sinewin"
1773 wmav1_encoder_select="mdct sinewin"
1774 wmav2_decoder_select="mdct sinewin"
1775 wmav2_encoder_select="mdct sinewin"
1776 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1777 wmv1_decoder_select="h263_decoder"
1778 wmv1_encoder_select="h263_encoder"
1779 wmv2_decoder_select="h263_decoder"
1780 wmv2_encoder_select="h263_encoder"
1781 wmv3_decoder_select="vc1_decoder"
1782 wmv3image_decoder_select="wmv3_decoder"
1783 zerocodec_decoder_select="zlib"
1784 zlib_decoder_select="zlib"
1785 zlib_encoder_select="zlib"
1786 zmbv_decoder_select="zlib"
1787 zmbv_encoder_select="zlib"
1788
1789 # hardware accelerators
1790 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1791 vaapi_deps="va_va_h"
1792 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1793 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1794
1795 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1796 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1797 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1798 h264_dxva2_hwaccel_deps="dxva2api_h"
1799 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1800 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1801 h264_vda_decoder_select="vda h264_parser h264_decoder"
1802 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1803 h264_vda_hwaccel_select="vda h264_decoder"
1804 h264_vdpau_decoder_select="vdpau h264_decoder"
1805 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1806 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1807 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1808 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1809 mpeg2_crystalhd_decoder_select="crystalhd"
1810 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1811 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1812 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1813 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1814 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1815 mpeg4_crystalhd_decoder_select="crystalhd"
1816 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1817 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1818 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1819 msmpeg4_crystalhd_decoder_select="crystalhd"
1820 vc1_crystalhd_decoder_select="crystalhd"
1821 vc1_dxva2_hwaccel_deps="dxva2api_h"
1822 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1823 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1824 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1825 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1826 wmv3_crystalhd_decoder_select="crystalhd"
1827 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1828 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1829 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1830 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1831
1832 # parsers
1833 h264_parser_select="error_resilience golomb h264dsp h264pred h264qpel mpegvideo"
1834 mpeg4video_parser_select="error_resilience mpegvideo"
1835 mpegvideo_parser_select="error_resilience mpegvideo"
1836 vc1_parser_select="error_resilience mpegvideo"
1837
1838 # external libraries
1839 libaacplus_encoder_deps="libaacplus"
1840 libcelt_decoder_deps="libcelt"
1841 libfaac_encoder_deps="libfaac"
1842 libfdk_aac_encoder_deps="libfdk_aac"
1843 libgsm_decoder_deps="libgsm"
1844 libgsm_encoder_deps="libgsm"
1845 libgsm_ms_decoder_deps="libgsm"
1846 libgsm_ms_encoder_deps="libgsm"
1847 libilbc_decoder_deps="libilbc"
1848 libilbc_encoder_deps="libilbc"
1849 libmodplug_demuxer_deps="libmodplug"
1850 libmp3lame_encoder_deps="libmp3lame"
1851 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1852 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1853 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1854 libopenjpeg_decoder_deps="libopenjpeg"
1855 libopenjpeg_encoder_deps="libopenjpeg"
1856 libopus_decoder_deps="libopus"
1857 libopus_encoder_deps="libopus"
1858 libschroedinger_decoder_deps="libschroedinger"
1859 libschroedinger_encoder_deps="libschroedinger"
1860 libspeex_decoder_deps="libspeex"
1861 libspeex_encoder_deps="libspeex"
1862 libstagefright_h264_decoder_deps="libstagefright_h264"
1863 libtheora_encoder_deps="libtheora"
1864 libtwolame_encoder_deps="libtwolame"
1865 libvo_aacenc_encoder_deps="libvo_aacenc"
1866 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1867 libvorbis_decoder_deps="libvorbis"
1868 libvorbis_encoder_deps="libvorbis"
1869 libvpx_vp8_decoder_deps="libvpx"
1870 libvpx_vp8_encoder_deps="libvpx"
1871 libvpx_vp9_decoder_deps="libvpx"
1872 libvpx_vp9_encoder_deps="libvpx"
1873 libx264_encoder_deps="libx264"
1874 libx264rgb_encoder_deps="libx264"
1875 libxavs_encoder_deps="libxavs"
1876 libxvid_encoder_deps="libxvid"
1877 libutvideo_decoder_deps="libutvideo"
1878 libutvideo_encoder_deps="libutvideo"
1879
1880 # demuxers / muxers
1881 ac3_demuxer_select="ac3_parser"
1882 asf_stream_muxer_select="asf_muxer"
1883 avisynth_demuxer_deps="avisynth"
1884 dirac_demuxer_select="dirac_parser"
1885 dts_demuxer_select="dca_parser"
1886 dtshd_demuxer_select="dca_parser"
1887 eac3_demuxer_select="ac3_parser"
1888 f4v_muxer_select="mov_muxer"
1889 flac_demuxer_select="flac_parser"
1890 ipod_muxer_select="mov_muxer"
1891 ismv_muxer_select="mov_muxer"
1892 libnut_demuxer_deps="libnut"
1893 libnut_muxer_deps="libnut"
1894 matroska_audio_muxer_select="matroska_muxer"
1895 matroska_demuxer_suggest="bzlib lzo zlib"
1896 mov_demuxer_suggest="zlib"
1897 mov_muxer_select="rtpenc_chain"
1898 mp3_demuxer_select="mpegaudio_parser"
1899 mp4_muxer_select="mov_muxer"
1900 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1901 mpegtsraw_demuxer_select="mpegts_demuxer"
1902 mxf_d10_muxer_select="mxf_muxer"
1903 ogg_demuxer_select="golomb"
1904 psp_muxer_select="mov_muxer"
1905 rtp_demuxer_select="sdp_demuxer"
1906 rtp_muxer_select="mpegvideo"
1907 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1908 rtsp_demuxer_select="http_protocol rtpdec"
1909 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1910 sap_demuxer_select="sdp_demuxer"
1911 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1912 sdp_demuxer_select="rtpdec"
1913 smoothstreaming_muxer_select="ismv_muxer"
1914 spdif_muxer_select="aac_parser"
1915 tak_demuxer_select="tak_parser"
1916 tg2_muxer_select="mov_muxer"
1917 tgp_muxer_select="mov_muxer"
1918 vobsub_demuxer_select="mpegps_demuxer"
1919 w64_demuxer_deps="wav_demuxer"
1920 w64_muxer_deps="wav_muxer"
1921
1922 # indevs / outdevs
1923 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1924 alsa_outdev_deps="alsa_asoundlib_h"
1925 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1926 caca_outdev_deps="libcaca"
1927 dshow_indev_deps="IBaseFilter"
1928 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1929 dv1394_indev_deps="dv1394 dv_demuxer"
1930 fbdev_indev_deps="linux_fb_h"
1931 iec61883_indev_deps="libiec61883"
1932 jack_indev_deps="jack_jack_h sem_timedwait"
1933 lavfi_indev_deps="avfilter"
1934 libcdio_indev_deps="libcdio"
1935 libdc1394_indev_deps="libdc1394"
1936 libv4l2_indev_deps="libv4l2"
1937 openal_indev_deps="openal"
1938 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1939 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1940 pulse_indev_deps="libpulse"
1941 sdl_outdev_deps="sdl"
1942 sndio_indev_deps="sndio_h"
1943 sndio_outdev_deps="sndio_h"
1944 v4l_indev_deps="linux_videodev_h"
1945 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1946 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1947 vfwcap_indev_extralibs="-lavicap32"
1948 x11grab_indev_deps="x11grab"
1949
1950 # protocols
1951 bluray_protocol_deps="libbluray"
1952 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1953 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1954 ffrtmpcrypt_protocol_select="tcp_protocol"
1955 ffrtmphttp_protocol_deps="!librtmp_protocol"
1956 ffrtmphttp_protocol_select="http_protocol"
1957 gopher_protocol_select="network"
1958 httpproxy_protocol_select="tcp_protocol"
1959 http_protocol_select="tcp_protocol"
1960 https_protocol_select="tls_protocol"
1961 librtmp_protocol_deps="librtmp"
1962 librtmpe_protocol_deps="librtmp"
1963 librtmps_protocol_deps="librtmp"
1964 librtmpt_protocol_deps="librtmp"
1965 librtmpte_protocol_deps="librtmp"
1966 mmsh_protocol_select="http_protocol"
1967 mmst_protocol_select="network"
1968 rtmp_protocol_deps="!librtmp_protocol"
1969 rtmp_protocol_select="tcp_protocol"
1970 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1971 rtmps_protocol_deps="!librtmp_protocol"
1972 rtmps_protocol_select="tls_protocol"
1973 rtmpt_protocol_select="ffrtmphttp_protocol"
1974 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1975 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1976 rtp_protocol_select="udp_protocol"
1977 sctp_protocol_deps="struct_sctp_event_subscribe"
1978 sctp_protocol_select="network"
1979 srtp_protocol_select="rtp_protocol"
1980 tcp_protocol_select="network"
1981 tls_protocol_deps_any="openssl gnutls"
1982 tls_protocol_select="tcp_protocol"
1983 udp_protocol_select="network"
1984
1985 # filters
1986 aconvert_filter_deps="swresample"
1987 amovie_filter_deps="avcodec avformat"
1988 aresample_filter_deps="swresample"
1989 ass_filter_deps="libass"
1990 asyncts_filter_deps="avresample"
1991 atempo_filter_deps="avcodec rdft"
1992 blackframe_filter_deps="gpl"
1993 boxblur_filter_deps="gpl"
1994 colormatrix_filter_deps="gpl"
1995 cropdetect_filter_deps="gpl"
1996 decimate_filter_deps="gpl avcodec"
1997 delogo_filter_deps="gpl"
1998 deshake_filter_deps="avcodec"
1999 drawtext_filter_deps="libfreetype"
2000 ebur128_filter_deps="gpl"
2001 flite_filter_deps="libflite"
2002 frei0r_filter_deps="frei0r dlopen"
2003 frei0r_filter_extralibs='$ldl'
2004 frei0r_src_filter_deps="frei0r dlopen"
2005 frei0r_src_filter_extralibs='$ldl'
2006 geq_filter_deps="gpl"
2007 histeq_filter_deps="gpl"
2008 hqdn3d_filter_deps="gpl"
2009 hue_filter_deps="gpl"
2010 kerndeint_filter_deps="gpl"
2011 movie_filter_deps="avcodec avformat"
2012 mp_filter_deps="gpl avcodec swscale inline_asm"
2013 mptestsrc_filter_deps="gpl"
2014 negate_filter_deps="lut_filter"
2015 resample_filter_deps="avresample"
2016 ocv_filter_deps="libopencv"
2017 pan_filter_deps="swresample"
2018 pp_filter_deps="gpl postproc"
2019 removelogo_filter_deps="avcodec avformat swscale"
2020 scale_filter_deps="swscale"
2021 smartblur_filter_deps="gpl swscale"
2022 showspectrum_filter_deps="avcodec rdft"
2023 subtitles_filter_deps="avformat avcodec libass"
2024 super2xsai_filter_deps="gpl"
2025 tinterlace_filter_deps="gpl"
2026 yadif_filter_deps="gpl"
2027 pixfmts_super2xsai_test_deps="super2xsai_filter"
2028 tinterlace_merge_test_deps="tinterlace_filter"
2029 tinterlace_pad_test_deps="tinterlace_filter"
2030
2031 # libraries
2032 avcodec_deps="avutil"
2033 avdevice_deps="avutil avcodec avformat"
2034 avfilter_deps="avutil"
2035 avformat_deps="avutil avcodec"
2036 avresample_deps="avutil"
2037 postproc_deps="avutil gpl"
2038 swscale_deps="avutil"
2039
2040 # programs
2041 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2042 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2043                setpts_filter null_filter anull_filter ffabuffersink_filter"
2044 ffplay_deps="avcodec avformat swscale swresample sdl"
2045 ffplay_select="ffbuffersink_filter rdft crop_filter"
2046 ffprobe_deps="avcodec avformat"
2047 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2048 ffserver_extralibs='$ldl'
2049
2050 # documentation
2051 podpages_deps="perl"
2052 manpages_deps="perl pod2man"
2053 htmlpages_deps="texi2html"
2054 txtpages_deps="makeinfo"
2055 doc_deps_any="manpages htmlpages podpages txtpages"
2056
2057 # default parameters
2058
2059 logfile="config.log"
2060
2061 # installation paths
2062 prefix_default="/usr/local"
2063 bindir_default='${prefix}/bin'
2064 datadir_default='${prefix}/share/ffmpeg'
2065 incdir_default='${prefix}/include'
2066 libdir_default='${prefix}/lib'
2067 mandir_default='${prefix}/share/man'
2068 shlibdir_default="$libdir_default"
2069
2070 # toolchain
2071 ar_default="ar"
2072 cc_default="gcc"
2073 cxx_default="g++"
2074 host_cc_default="gcc"
2075 cp_f="cp -f"
2076 install="install"
2077 ln_s="ln -sf"
2078 nm_default="nm -g"
2079 objformat="elf"
2080 pkg_config_default=pkg-config
2081 ranlib="ranlib"
2082 strip_default="strip"
2083 yasmexe_default="yasm"
2084
2085 nogas=":"
2086
2087 # machine
2088 arch_default=$(uname -m)
2089 cpu="generic"
2090
2091 # OS
2092 target_os_default=$(tolower $(uname -s))
2093 host_os=$target_os_default
2094
2095 # configurable options
2096 enable $PROGRAM_LIST
2097 enable $DOCUMENT_LIST
2098 enable $(filter_out avresample $LIBRARY_LIST)
2099 enable stripping
2100
2101 enable asm
2102 enable debug
2103 enable doc
2104 enable optimizations
2105 enable runtime_cpudetect
2106 enable safe_bitstream_reader
2107 enable static
2108 enable swscale_alpha
2109
2110 # build settings
2111 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2112 FFSERVERLDFLAGS=-Wl,-E
2113 LIBPREF="lib"
2114 LIBSUF=".a"
2115 FULLNAME='$(NAME)$(BUILDSUF)'
2116 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2117 SLIBPREF="lib"
2118 SLIBSUF=".so"
2119 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2120 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2121 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2122 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2123 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2124 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2125
2126 asflags_filter=echo
2127 cflags_filter=echo
2128 ldflags_filter=echo
2129
2130 AS_C='-c'
2131 AS_O='-o $@'
2132 CC_C='-c'
2133 CC_E='-E -o $@'
2134 CC_O='-o $@'
2135 CXX_C='-c'
2136 CXX_O='-o $@'
2137 LD_O='-o $@'
2138 LD_LIB='-l%'
2139 LD_PATH='-L'
2140 HOSTCC_C='-c'
2141 HOSTCC_O='-o $@'
2142 HOSTLD_O='-o $@'
2143
2144 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
2145 host_libs='-lm'
2146 host_cflags_filter=echo
2147 host_ldflags_filter=echo
2148
2149 target_path='$(CURDIR)'
2150
2151 # since the object filename is not given with the -MM flag, the compiler
2152 # is only able to print the basename, and we must add the path ourselves
2153 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2154 DEPFLAGS='-MM'
2155
2156 # find source path
2157 if test -f configure; then
2158     source_path=.
2159 else
2160     source_path=$(cd $(dirname "$0"); pwd)
2161     echo "$source_path" | grep -q '[[:blank:]]' &&
2162         die "Out of tree builds are impossible with whitespace in source path."
2163     test -e "$source_path/config.h" &&
2164         die "Out of tree builds are impossible with config.h in source dir."
2165 fi
2166
2167 for v in "$@"; do
2168     r=${v#*=}
2169     l=${v%"$r"}
2170     r=$(sh_quote "$r")
2171     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2172 done
2173
2174 find_things(){
2175     thing=$1
2176     pattern=$2
2177     file=$source_path/$3
2178     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2179 }
2180
2181 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2182 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2183 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2184 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2185 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2186 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2187 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2188 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2189 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2190 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2191 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2192
2193 ALL_COMPONENTS="
2194     $BSF_LIST
2195     $DECODER_LIST
2196     $DEMUXER_LIST
2197     $ENCODER_LIST
2198     $FILTER_LIST
2199     $HWACCEL_LIST
2200     $INDEV_LIST
2201     $MUXER_LIST
2202     $OUTDEV_LIST
2203     $PARSER_LIST
2204     $PROTOCOL_LIST
2205 "
2206
2207 for n in $COMPONENT_LIST; do
2208     v=$(toupper ${n%s})_LIST
2209     eval enable \$$v
2210     eval ${n}_if_any="\$$v"
2211 done
2212
2213 enable $ARCH_EXT_LIST
2214
2215 die_unknown(){
2216     echo "Unknown option \"$1\"."
2217     echo "See $0 --help for available options."
2218     exit 1
2219 }
2220
2221 show_list() {
2222     suffix=_$1
2223     shift
2224     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2225     exit 0
2226 }
2227
2228 rand_list(){
2229     IFS=', '
2230     set -- $*
2231     unset IFS
2232     for thing; do
2233         comp=${thing%:*}
2234         prob=${thing#$comp}
2235         prob=${prob#:}
2236         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2237         echo "prob ${prob:-0.5}"
2238         printf '%s\n' $comp
2239     done
2240 }
2241
2242 do_random(){
2243     action=$1
2244     shift
2245     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2246     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2247 }
2248
2249 for opt do
2250     optval="${opt#*=}"
2251     case "$opt" in
2252         --extra-ldflags=*)
2253             add_ldflags $optval
2254         ;;
2255         --extra-libs=*)
2256             add_extralibs $optval
2257         ;;
2258         --disable-devices)
2259             disable $INDEV_LIST $OUTDEV_LIST
2260         ;;
2261         --enable-debug=*)
2262             debuglevel="$optval"
2263         ;;
2264         --disable-programs)
2265             disable $PROGRAM_LIST
2266         ;;
2267         --disable-everything)
2268             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2269         ;;
2270         --disable-all)
2271             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2272             disable $LIBRARY_LIST $PROGRAM_LIST doc
2273         ;;
2274         --enable-random|--disable-random)
2275             action=${opt%%-random}
2276             do_random ${action#--} $COMPONENT_LIST
2277         ;;
2278         --enable-random=*|--disable-random=*)
2279             action=${opt%%-random=*}
2280             do_random ${action#--} $optval
2281         ;;
2282         --enable-*=*|--disable-*=*)
2283             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2284             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2285             eval list=\$$(toupper $thing)_LIST
2286             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2287             list=$(filter "$name" $list)
2288             [ "$list" = "" ] && warn "Option $opt did not match anything"
2289             $action $list
2290         ;;
2291         --enable-?*|--disable-?*)
2292             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2293             if is_in $option $COMPONENT_LIST; then
2294                 test $action = disable && action=unset
2295                 eval $action \$$(toupper ${option%s})_LIST
2296             elif is_in $option $CMDLINE_SELECT; then
2297                 $action $option
2298             else
2299                 die_unknown $opt
2300             fi
2301         ;;
2302         --list-*)
2303             NAME="${opt#--list-}"
2304             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2305             NAME=${NAME%s}
2306             eval show_list $NAME \$$(toupper $NAME)_LIST
2307         ;;
2308         --help|-h) show_help
2309         ;;
2310         --fatal-warnings) enable fatal_warnings
2311         ;;
2312         *)
2313             optname="${opt%%=*}"
2314             optname="${optname#--}"
2315             optname=$(echo "$optname" | sed 's/-/_/g')
2316             if is_in $optname $CMDLINE_SET; then
2317                 eval $optname='$optval'
2318             elif is_in $optname $CMDLINE_APPEND; then
2319                 append $optname "$optval"
2320             else
2321                 die_unknown $opt
2322             fi
2323         ;;
2324     esac
2325 done
2326
2327 disabled logging && logfile=/dev/null
2328
2329 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2330 set >> $logfile
2331
2332 test -n "$cross_prefix" && enable cross_compile
2333
2334 if enabled cross_compile; then
2335     test -n "$arch" && test -n "$target_os" ||
2336         die "Must specify target arch and OS when cross-compiling"
2337 fi
2338
2339 ar_default="${cross_prefix}${ar_default}"
2340 cc_default="${cross_prefix}${cc_default}"
2341 cxx_default="${cross_prefix}${cxx_default}"
2342 nm_default="${cross_prefix}${nm_default}"
2343 pkg_config_default="${cross_prefix}${pkg_config_default}"
2344 ranlib="${cross_prefix}${ranlib}"
2345 strip_default="${cross_prefix}${strip_default}"
2346
2347 sysinclude_default="${sysroot}/usr/include"
2348
2349 case "$toolchain" in
2350     clang-asan)
2351         cc_default="clang"
2352         add_cflags  -faddress-sanitizer
2353         add_ldflags -faddress-sanitizer
2354     ;;
2355     clang-tsan)
2356         cc_default="clang"
2357         add_cflags  -fthread-sanitizer
2358         add_ldflags -fthread-sanitizer
2359     ;;
2360     msvc)
2361         cc_default="c99wrap cl"
2362         ld_default="c99wrap link"
2363         nm_default="dumpbin -symbols"
2364         ar_default="lib"
2365         target_os_default="win32"
2366     ;;
2367     ?*)
2368         die "Unknown toolchain $toolchain"
2369     ;;
2370 esac
2371
2372 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2373 enabled cross_compile || host_cc_default=$cc
2374 set_default host_cc
2375
2376 if ! $pkg_config --version >/dev/null 2>&1; then
2377     warn "$pkg_config not found, library detection may fail."
2378     pkg_config=false
2379 fi
2380
2381 exesuf() {
2382     case $1 in
2383         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2384     esac
2385 }
2386
2387 EXESUF=$(exesuf $target_os)
2388 HOSTEXESUF=$(exesuf $host_os)
2389
2390 # set temporary file name
2391 : ${TMPDIR:=$TEMPDIR}
2392 : ${TMPDIR:=$TMP}
2393 : ${TMPDIR:=/tmp}
2394
2395 if ! check_cmd mktemp -u XXXXXX; then
2396     # simple replacement for missing mktemp
2397     # NOT SAFE FOR GENERAL USE
2398     mktemp(){
2399         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2400     }
2401 fi
2402
2403 tmpfile(){
2404     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2405         (set -C; exec > $tmp) 2>/dev/null ||
2406         die "Unable to create temporary file in $TMPDIR."
2407     append TMPFILES $tmp
2408     eval $1=$tmp
2409 }
2410
2411 trap 'rm -f -- $TMPFILES' EXIT
2412
2413 tmpfile TMPASM .asm
2414 tmpfile TMPC   .c
2415 tmpfile TMPCPP .cpp
2416 tmpfile TMPE   $EXESUF
2417 tmpfile TMPH   .h
2418 tmpfile TMPO   .o
2419 tmpfile TMPS   .S
2420 tmpfile TMPSH  .sh
2421 tmpfile TMPV   .ver
2422
2423 unset -f mktemp
2424
2425 chmod +x $TMPE
2426
2427 # make sure we can execute files in $TMPDIR
2428 cat > $TMPSH 2>> $logfile <<EOF
2429 #! /bin/sh
2430 EOF
2431 chmod +x $TMPSH >> $logfile 2>&1
2432 if ! $TMPSH >> $logfile 2>&1; then
2433     cat <<EOF
2434 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2435 variable to another directory and make sure that it is not mounted noexec.
2436 EOF
2437     die "Sanity test failed."
2438 fi
2439
2440 ccc_flags(){
2441     for flag; do
2442         case $flag in
2443             -std=c99)           echo -c99                       ;;
2444             -mcpu=*)            echo -arch ${flag#*=}           ;;
2445             -mieee)             echo -ieee                      ;;
2446             -O*|-fast)          echo $flag                      ;;
2447             -fno-math-errno)    echo -assume nomath_errno       ;;
2448             -g)                 echo -g3                        ;;
2449             -Wall)              echo -msg_enable level2         ;;
2450             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2451             -Wl,*)              echo $flag                      ;;
2452             -f*|-W*)                                            ;;
2453             *)                  echo $flag                      ;;
2454         esac
2455    done
2456 }
2457
2458 msvc_flags(){
2459     for flag; do
2460         case $flag in
2461             -fomit-frame-pointer) echo -Oy ;;
2462             -g)                   echo -Z7 ;;
2463             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2464                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2465                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2466                                        -wd4554 \
2467                                        -wd4996 -wd4273 ;;
2468             -std=c99)             ;;
2469             -fno-math-errno)      ;;
2470             -fno-common)          ;;
2471             -fno-signed-zeros)    ;;
2472             -fPIC)                ;;
2473             -lz)                  echo zlib.lib ;;
2474             -lavifil32)           echo vfw32.lib ;;
2475             -lavicap32)           echo vfw32.lib user32.lib ;;
2476             -l*)                  echo ${flag#-l}.lib ;;
2477             *)                    echo $flag ;;
2478         esac
2479     done
2480 }
2481
2482 pgi_flags(){
2483     for flag; do
2484         case $flag in
2485             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2486             -fomit-frame-pointer) echo -Mnoframe ;;
2487             -g)                   echo -gopt ;;
2488             *)                    echo $flag ;;
2489         esac
2490     done
2491 }
2492
2493 suncc_flags(){
2494     for flag; do
2495         case $flag in
2496             -march=*|-mcpu=*)
2497                 case "${flag#*=}" in
2498                     native)                   echo -xtarget=native       ;;
2499                     v9|niagara)               echo -xarch=sparc          ;;
2500                     ultrasparc)               echo -xarch=sparcvis       ;;
2501                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2502                     i586|pentium)             echo -xchip=pentium        ;;
2503                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2504                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2505                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2506                     pentium4*)          echo -xtarget=pentium4           ;;
2507                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2508                     *-sse3)             echo -xarch=sse3                 ;;
2509                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2510                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2511                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2512                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2513                     bdver*)                   echo -xarch=avx            ;;
2514                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2515                     k8|opteron|athlon64|athlon-fx)
2516                                               echo -xarch=sse2a          ;;
2517                     athlon*)                  echo -xarch=pentium_proa   ;;
2518                 esac
2519                 ;;
2520             -std=c99)             echo -xc99              ;;
2521             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2522             -fPIC)                echo -KPIC -xcode=pic32 ;;
2523             -W*,*)                echo $flag              ;;
2524             -f*-*|-W*|-mimpure-text)                      ;;
2525             -shared)              echo -G                 ;;
2526             *)                    echo $flag              ;;
2527         esac
2528     done
2529 }
2530
2531 tms470_flags(){
2532     for flag; do
2533         case $flag in
2534             -march=*|-mcpu=*)
2535                 case "${flag#*=}" in
2536                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2537                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2538                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2539                     armv6*|arm11*)          echo -mv=6   ;;
2540                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2541                                             echo -mv=5e  ;;
2542                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2543                 esac
2544                 ;;
2545             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2546             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2547             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2548             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2549             -msoft-float)   echo --float_support=vfplib       ;;
2550             -O[0-3]|-mf=*)  echo $flag                        ;;
2551             -g)             echo -g -mn                       ;;
2552             -pds=*)         echo $flag                        ;;
2553             -D*|-I*)        echo $flag                        ;;
2554             --gcc|--abi=*)  echo $flag                        ;;
2555             -me)            echo $flag                        ;;
2556         esac
2557     done
2558 }
2559
2560 probe_cc(){
2561     pfx=$1
2562     _cc=$2
2563
2564     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2565     unset _ld_o _ldflags _ld_lib _ld_path
2566     unset _depflags _DEPCMD _DEPFLAGS
2567     _flags_filter=echo
2568
2569     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2570         _type=llvm_gcc
2571         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2572         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2573         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2574         _cflags_speed='-O3'
2575         _cflags_size='-Os'
2576     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2577         _type=gcc
2578         gcc_version=$($_cc --version | head -n1)
2579         gcc_basever=$($_cc -dumpversion)
2580         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2581         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2582         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2583         if ! $_cc -dumpversion | grep -q '^2\.'; then
2584             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2585         fi
2586         _cflags_speed='-O3'
2587         _cflags_size='-Os'
2588     elif $_cc --version 2>/dev/null | grep -q Intel; then
2589         _type=icc
2590         _ident=$($_cc --version | head -n1)
2591         _depflags='-MMD'
2592         _cflags_speed='-O3'
2593         _cflags_size='-Os'
2594         _cflags_noopt='-O1'
2595     elif $_cc -v 2>&1 | grep -q xlc; then
2596         _type=xlc
2597         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2598         _cflags_speed='-O5'
2599         _cflags_size='-O5 -qcompact'
2600     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2601         _type=ccc
2602         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2603         _DEPFLAGS='-M'
2604         _cflags_speed='-fast'
2605         _cflags_size='-O1'
2606         _flags_filter=ccc_flags
2607     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2608         test -d "$sysroot" || die "No valid sysroot specified."
2609         _type=armcc
2610         _ident=$($_cc --vsn | head -n1)
2611         armcc_conf="$PWD/armcc.conf"
2612         $_cc --arm_linux_configure                 \
2613              --arm_linux_config_file="$armcc_conf" \
2614              --configure_sysroot="$sysroot"        \
2615              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2616              die "Error creating armcc configuration file."
2617         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2618         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2619         as_default="${cross_prefix}gcc"
2620         _depflags='-MMD'
2621         _cflags_speed='-O3'
2622         _cflags_size='-Os'
2623     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2624         _type=tms470
2625         _ident=$($_cc -version | head -n1 | tr -s ' ')
2626         _flags='--gcc --abi=eabi -me'
2627         _cc_e='-ppl -fe=$@'
2628         _cc_o='-fe=$@'
2629         _depflags='-ppa -ppd=$(@:.o=.d)'
2630         _cflags_speed='-O3 -mf=5'
2631         _cflags_size='-O3 -mf=2'
2632         _flags_filter=tms470_flags
2633     elif $_cc -v 2>&1 | grep -q clang; then
2634         _type=clang
2635         _ident=$($_cc --version | head -n1)
2636         _depflags='-MMD'
2637         _cflags_speed='-O3'
2638         _cflags_size='-Os'
2639     elif $_cc -V 2>&1 | grep -q Sun; then
2640         _type=suncc
2641         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2642         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2643         _DEPFLAGS='-xM1 -xc99'
2644         _ldflags='-std=c99'
2645         _cflags_speed='-O5'
2646         _cflags_size='-O5 -xspace'
2647         _flags_filter=suncc_flags
2648     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2649         _type=pathscale
2650         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2651         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2652         _cflags_speed='-O2'
2653         _cflags_size='-Os'
2654         _flags_filter='filter_out -Wdisabled-optimization'
2655     elif $_cc -v 2>&1 | grep -q Open64; then
2656         _type=open64
2657         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2658         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2659         _cflags_speed='-O2'
2660         _cflags_size='-Os'
2661         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2662     elif $_cc -V 2>&1 | grep -q Portland; then
2663         _type=pgi
2664         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2665         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2666         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2667         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2668         _cflags_noopt="-O1"
2669         _flags_filter=pgi_flags
2670     elif $_cc 2>&1 | grep -q Microsoft; then
2671         _type=msvc
2672         _ident=$($cc 2>&1 | head -n1)
2673         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2674         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2675         _cflags_speed="-O2"
2676         _cflags_size="-O1"
2677         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2678         if $_cc 2>&1 | grep -q Linker; then
2679             _ld_o='-out $@'
2680         else
2681             _ld_o='-Fe$@'
2682         fi
2683         _cc_o='-Fo $@'
2684         _cc_e='-P -Fi $@'
2685         _flags_filter=msvc_flags
2686         _ld_lib='lib%.a'
2687         _ld_path='-libpath:'
2688         _flags='-nologo'
2689         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2690         if [ $pfx = hostcc ]; then
2691             append _cflags -Dsnprintf=_snprintf
2692         fi
2693         disable stripping
2694     fi
2695
2696     eval ${pfx}_type=\$_type
2697     eval ${pfx}_ident=\$_ident
2698 }
2699
2700 set_ccvars(){
2701     eval ${1}_C=\${_cc_c-\${${1}_C}}
2702     eval ${1}_E=\${_cc_e-\${${1}_E}}
2703     eval ${1}_O=\${_cc_o-\${${1}_O}}
2704
2705     if [ -n "$_depflags" ]; then
2706         eval ${1}_DEPFLAGS=\$_depflags
2707     else
2708         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2709         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2710         eval DEP${1}FLAGS=\$_flags
2711     fi
2712 }
2713
2714 probe_cc cc "$cc"
2715 cflags_filter=$_flags_filter
2716 cflags_speed=$_cflags_speed
2717 cflags_size=$_cflags_size
2718 cflags_noopt=$_cflags_noopt
2719 add_cflags $_flags $_cflags
2720 cc_ldflags=$_ldflags
2721 set_ccvars CC
2722
2723 probe_cc hostcc "$host_cc"
2724 host_cflags_filter=$_flags_filter
2725 add_host_cflags  $_flags $_cflags
2726 set_ccvars HOSTCC
2727
2728 test -n "$cc_type" && enable $cc_type ||
2729     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2730
2731 : ${as_default:=$cc}
2732 : ${dep_cc_default:=$cc}
2733 : ${ld_default:=$cc}
2734 : ${host_ld_default:=$host_cc}
2735 set_default ar as dep_cc ld host_ld
2736
2737 probe_cc as "$as"
2738 asflags_filter=$_flags_filter
2739 add_asflags $_flags $_cflags
2740 set_ccvars AS
2741
2742 probe_cc ld "$ld"
2743 ldflags_filter=$_flags_filter
2744 add_ldflags $_flags $_ldflags
2745 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2746 LD_O=${_ld_o-$LD_O}
2747 LD_LIB=${_ld_lib-$LD_LIB}
2748 LD_PATH=${_ld_path-$LD_PATH}
2749
2750 probe_cc hostld "$host_ld"
2751 host_ldflags_filter=$_flags_filter
2752 add_host_ldflags $_flags $_ldflags
2753 HOSTLD_O=${_ld_o-$HOSTLD_O}
2754
2755 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2756     probe_cc depcc "$dep_cc"
2757     CCDEP=${_DEPCMD:-$DEPCMD}
2758     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2759     DEPCCFLAGS=$_flags
2760 fi
2761
2762 if $ar 2>&1 | grep -q Microsoft; then
2763     arflags="-nologo"
2764     ar_o='-out:$@'
2765 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2766     arflags="rq"
2767     ar_o='$@'
2768 else
2769     arflags="rc"
2770     ar_o='$@'
2771 fi
2772
2773 add_cflags $extra_cflags
2774 add_cxxflags $extra_cxxflags
2775 add_asflags $extra_cflags
2776
2777 if test -n "$sysroot"; then
2778     case "$cc_type" in
2779         gcc|llvm_gcc|clang)
2780             add_cppflags --sysroot="$sysroot"
2781             add_ldflags --sysroot="$sysroot"
2782         ;;
2783         tms470)
2784             add_cppflags -I"$sysinclude"
2785             add_ldflags  --sysroot="$sysroot"
2786         ;;
2787     esac
2788 fi
2789
2790 if test "$cpu" = host; then
2791     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2792
2793     case "$cc_type" in
2794         gcc|llvm_gcc)
2795             check_native(){
2796                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2797                 sed -n "/cc1.*$1=/{
2798                             s/.*$1=\\([^ ]*\\).*/\\1/
2799                             p
2800                             q
2801                         }" $TMPE
2802             }
2803             cpu=$(check_native -march || check_native -mcpu)
2804         ;;
2805     esac
2806
2807     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2808 fi
2809
2810 # Deal with common $arch aliases
2811 case "$arch" in
2812     aarch64|arm64)
2813         arch="aarch64"
2814     ;;
2815     arm*|iPad*)
2816         arch="arm"
2817     ;;
2818     mips*|IP*)
2819         arch="mips"
2820     ;;
2821     parisc*|hppa*)
2822         arch="parisc"
2823     ;;
2824     "Power Macintosh"|ppc*|powerpc*)
2825         arch="ppc"
2826     ;;
2827     s390|s390x)
2828         arch="s390"
2829     ;;
2830     sh4|sh)
2831         arch="sh4"
2832     ;;
2833     sun4u|sparc*)
2834         arch="sparc"
2835     ;;
2836     tilegx|tile-gx)
2837         arch="tilegx"
2838     ;;
2839     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2840         arch="x86"
2841     ;;
2842 esac
2843
2844 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2845 enable $arch
2846
2847 # Add processor-specific flags
2848 if enabled aarch64; then
2849
2850     case $cpu in
2851         armv*)
2852             cpuflags="-march=$cpu"
2853         ;;
2854         *)
2855             cpuflags="-mcpu=$cpu"
2856         ;;
2857     esac
2858
2859 elif enabled alpha; then
2860
2861     cpuflags="-mcpu=$cpu"
2862
2863 elif enabled arm; then
2864
2865     check_arm_arch() {
2866         check_cpp_condition stddef.h \
2867             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2868             $cpuflags
2869     }
2870
2871     probe_arm_arch() {
2872         if   check_arm_arch 4;        then echo armv4;
2873         elif check_arm_arch 4T;       then echo armv4t;
2874         elif check_arm_arch 5;        then echo armv5;
2875         elif check_arm_arch 5E;       then echo armv5e;
2876         elif check_arm_arch 5T;       then echo armv5t;
2877         elif check_arm_arch 5TE;      then echo armv5te;
2878         elif check_arm_arch 5TEJ;     then echo armv5te;
2879         elif check_arm_arch 6;        then echo armv6;
2880         elif check_arm_arch 6J;       then echo armv6j;
2881         elif check_arm_arch 6K;       then echo armv6k;
2882         elif check_arm_arch 6Z;       then echo armv6z;
2883         elif check_arm_arch 6ZK;      then echo armv6zk;
2884         elif check_arm_arch 6T2;      then echo armv6t2;
2885         elif check_arm_arch 7;        then echo armv7;
2886         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2887         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2888         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2889         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2890         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2891         fi
2892     }
2893
2894     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2895
2896     case $cpu in
2897         armv*)
2898             cpuflags="-march=$cpu"
2899             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2900         ;;
2901         *)
2902             cpuflags="-mcpu=$cpu"
2903             case $cpu in
2904                 cortex-a*)                               subarch=armv7a  ;;
2905                 cortex-r*)                               subarch=armv7r  ;;
2906                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2907                 arm11*)                                  subarch=armv6   ;;
2908                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2909                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2910                 *)                             subarch=$(probe_arm_arch) ;;
2911             esac
2912         ;;
2913     esac
2914
2915     case "$subarch" in
2916         armv5t*)    enable fast_clz                ;;
2917         armv[6-8]*) enable fast_clz fast_unaligned ;;
2918     esac
2919
2920 elif enabled avr32; then
2921
2922     case $cpu in
2923         ap7[02]0[0-2])
2924             subarch="avr32_ap"
2925             cpuflags="-mpart=$cpu"
2926         ;;
2927         ap)
2928             subarch="avr32_ap"
2929             cpuflags="-march=$cpu"
2930         ;;
2931         uc3[ab]*)
2932             subarch="avr32_uc"
2933             cpuflags="-mcpu=$cpu"
2934         ;;
2935         uc)
2936             subarch="avr32_uc"
2937             cpuflags="-march=$cpu"
2938         ;;
2939     esac
2940
2941 elif enabled bfin; then
2942
2943     cpuflags="-mcpu=$cpu"
2944
2945 elif enabled mips; then
2946
2947     cpuflags="-march=$cpu"
2948
2949     case $cpu in
2950         24kc)
2951             disable mipsfpu
2952             disable mipsdspr1
2953             disable mipsdspr2
2954         ;;
2955         24kf*)
2956             disable mipsdspr1
2957             disable mipsdspr2
2958         ;;
2959         24kec|34kc|1004kc)
2960             disable mipsfpu
2961             disable mipsdspr2
2962         ;;
2963         24kef*|34kf*|1004kf*)
2964             disable mipsdspr2
2965         ;;
2966         74kc)
2967             disable mipsfpu
2968         ;;
2969     esac
2970
2971 elif enabled ppc; then
2972
2973     case $(tolower $cpu) in
2974         601|ppc601|powerpc601)
2975             cpuflags="-mcpu=601"
2976             disable altivec
2977         ;;
2978         603*|ppc603*|powerpc603*)
2979             cpuflags="-mcpu=603"
2980             disable altivec
2981         ;;
2982         604*|ppc604*|powerpc604*)
2983             cpuflags="-mcpu=604"
2984             disable altivec
2985         ;;
2986         g3|75*|ppc75*|powerpc75*)
2987             cpuflags="-mcpu=750"
2988             disable altivec
2989         ;;
2990         g4|745*|ppc745*|powerpc745*)
2991             cpuflags="-mcpu=7450"
2992         ;;
2993         74*|ppc74*|powerpc74*)
2994             cpuflags="-mcpu=7400"
2995         ;;
2996         g5|970|ppc970|powerpc970)
2997             cpuflags="-mcpu=970"
2998         ;;
2999         power[3-7]*)
3000             cpuflags="-mcpu=$cpu"
3001         ;;
3002         cell)
3003             cpuflags="-mcpu=cell"
3004             enable ldbrx
3005         ;;
3006         e500mc)
3007             cpuflags="-mcpu=e500mc"
3008             disable altivec
3009         ;;
3010         e500v2)
3011             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3012             disable altivec
3013         ;;
3014         e500)
3015             cpuflags="-mcpu=8540 -mhard-float"
3016             disable altivec
3017         ;;
3018     esac
3019
3020 elif enabled sparc; then
3021
3022     case $cpu in
3023         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3024             cpuflags="-mcpu=$cpu"
3025             disable vis
3026         ;;
3027         ultrasparc*|niagara[234])
3028             cpuflags="-mcpu=$cpu"
3029         ;;
3030     esac
3031
3032 elif enabled x86; then
3033
3034     case $cpu in
3035         i[345]86|pentium)
3036             cpuflags="-march=$cpu"
3037             disable mmx
3038         ;;
3039         # targets that do NOT support conditional mov (cmov)
3040         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3041             cpuflags="-march=$cpu"
3042             disable cmov
3043         ;;
3044         # targets that do support conditional mov (cmov)
3045         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3046             cpuflags="-march=$cpu"
3047             enable cmov
3048             enable fast_cmov
3049         ;;
3050         # targets that do support conditional mov but on which it's slow
3051         pentium4|pentium4m|prescott|nocona)
3052             cpuflags="-march=$cpu"
3053             enable cmov
3054             disable fast_cmov
3055         ;;
3056     esac
3057
3058 fi
3059
3060 if [ "$cpu" != generic ]; then
3061     add_cflags  $cpuflags
3062     add_asflags $cpuflags
3063 fi
3064
3065 # compiler sanity check
3066 check_exec <<EOF
3067 int main(void){ return 0; }
3068 EOF
3069 if test "$?" != 0; then
3070     echo "$cc is unable to create an executable file."
3071     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3072         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3073         echo "Only do this if you know what cross compiling means."
3074     fi
3075     die "C compiler test failed."
3076 fi
3077
3078 add_cppflags -D_ISOC99_SOURCE
3079 add_cxxflags -D__STDC_CONSTANT_MACROS
3080 check_cflags -std=c99
3081 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3082 #include <stdlib.h>
3083 EOF
3084 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3085 #include <stdlib.h>
3086 EOF
3087
3088 check_host_cflags -std=c99
3089 check_host_cflags -Wall
3090
3091 check_64bit(){
3092     arch32=$1
3093     arch64=$2
3094     expr=$3
3095     check_code cc "" "int test[2*($expr) - 1]" &&
3096         subarch=$arch64 || subarch=$arch32
3097 }
3098
3099 case "$arch" in
3100     aarch64|alpha|ia64)
3101         spic=$shared
3102     ;;
3103     mips)
3104         check_64bit mips mips64 '_MIPS_SIM > 1'
3105         spic=$shared
3106     ;;
3107     parisc)
3108         check_64bit parisc parisc64 'sizeof(void *) > 4'
3109         spic=$shared
3110     ;;
3111     ppc)
3112         check_64bit ppc ppc64 'sizeof(void *) > 4'
3113         spic=$shared
3114     ;;
3115     sparc)
3116         check_64bit sparc sparc64 'sizeof(void *) > 4'
3117         spic=$shared
3118     ;;
3119     x86)
3120         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3121         if test "$subarch" = "x86_64"; then
3122             spic=$shared
3123         fi
3124     ;;
3125     ppc)
3126         check_cc <<EOF && subarch="ppc64"
3127         int test[(int)sizeof(char*) - 7];
3128 EOF
3129     ;;
3130 esac
3131
3132 enable $subarch
3133 enabled spic && enable pic
3134
3135 # OS specific
3136 case $target_os in
3137     haiku)
3138         prefix_default="/boot/common"
3139         network_extralibs="-lnetwork"
3140         host_libs=
3141         ;;
3142     sunos)
3143         FFSERVERLDFLAGS=""
3144         SHFLAGS='-shared -Wl,-h,$$(@F)'
3145         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3146         network_extralibs="-lsocket -lnsl"
3147         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3148         # When using suncc to build, the Solaris linker will mark
3149         # an executable with each instruction set encountered by
3150         # the Solaris assembler.  As our libraries contain their own
3151         # guards for processor-specific code, instead suppress
3152         # generation of the HWCAPS ELF section on Solaris x86 only.
3153         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3154         nm_default='nm -P -g'
3155         ;;
3156     netbsd)
3157         disable symver
3158         oss_indev_extralibs="-lossaudio"
3159         oss_outdev_extralibs="-lossaudio"
3160         enabled gcc || check_ldflags -Wl,-zmuldefs
3161         ;;
3162     openbsd|bitrig)
3163         disable symver
3164         SHFLAGS='-shared'
3165         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
3166         SLIB_INSTALL_LINKS=
3167         oss_indev_extralibs="-lossaudio"
3168         oss_outdev_extralibs="-lossaudio"
3169         ;;
3170     dragonfly)
3171         disable symver
3172         ;;
3173     freebsd)
3174         ;;
3175     bsd/os)
3176         add_extralibs -lpoll -lgnugetopt
3177         strip="strip -d"
3178         ;;
3179     darwin)
3180         gas="gas-preprocessor.pl $cc"
3181         enabled ppc && add_asflags -force_cpusubtype_ALL
3182         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3183         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3184         strip="${strip} -x"
3185         add_ldflags -Wl,-dynamic,-search_paths_first
3186         SLIBSUF=".dylib"
3187         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3188         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3189         FFSERVERLDFLAGS=-Wl,-bind_at_load
3190         objformat="macho"
3191         enabled x86_64 && objformat="macho64"
3192         enabled_any pic shared ||
3193             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3194         ;;
3195     mingw32*)
3196         if test $target_os = "mingw32ce"; then
3197             disable network
3198         else
3199             target_os=mingw32
3200         fi
3201         LIBTARGET=i386
3202         if enabled x86_64; then
3203             LIBTARGET="i386:x86-64"
3204         elif enabled arm; then
3205             LIBTARGET=arm-wince
3206         fi
3207         shlibdir_default="$bindir_default"
3208         SLIBPREF=""
3209         SLIBSUF=".dll"
3210         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3211         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3212         dlltool="${cross_prefix}dlltool"
3213         if check_cmd lib.exe -list; then
3214             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3215             if enabled x86_64; then
3216                 LIBTARGET=x64
3217             fi
3218         elif check_cmd $dlltool --version; then
3219             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3220         fi
3221         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3222         SLIB_INSTALL_LINKS=
3223         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3224         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3225         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3226         objformat="win32"
3227         ranlib=:
3228         enable dos_paths
3229         add_cppflags -U__STRICT_ANSI__
3230         ;;
3231     win32|win64)
3232         if enabled shared; then
3233             # Link to the import library instead of the normal static library
3234             # for shared libs.
3235             LD_LIB='%.lib'
3236             # Cannot build shared and static libraries at the same time with
3237             # MSVC.
3238             disable static
3239         fi
3240         shlibdir_default="$bindir_default"
3241         SLIBPREF=""
3242         SLIBSUF=".dll"
3243         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3244         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3245         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3246         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3247         SLIB_INSTALL_LINKS=
3248         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3249         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3250         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3251         objformat="win32"
3252         ranlib=:
3253         enable dos_paths
3254         ;;
3255     cygwin*)
3256         target_os=cygwin
3257         shlibdir_default="$bindir_default"
3258         SLIBPREF="cyg"
3259         SLIBSUF=".dll"
3260         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3261         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3262         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3263         SLIB_INSTALL_LINKS=
3264         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3265         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3266         objformat="win32"
3267         enable dos_paths
3268         ;;
3269     *-dos|freedos|opendos)
3270         network_extralibs="-lsocket"
3271         objformat="coff"
3272         enable dos_paths
3273         add_cppflags -U__STRICT_ANSI__
3274         ;;
3275     linux)
3276         enable dv1394
3277         ;;
3278     irix*)
3279         target_os=irix
3280         ranlib="echo ignoring ranlib"
3281         ;;
3282     os/2*)
3283         strip="lxlite -CS"
3284         ln_s="cp -f"
3285         objformat="aout"
3286         add_cppflags -D_GNU_SOURCE
3287         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3288         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3289         FFSERVERLDFLAGS=""
3290         LIBSUF="_s.a"
3291         SLIBPREF=""
3292         SLIBSUF=".dll"
3293         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3294         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3295         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3296             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3297             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3298             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3299             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3300             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3301         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3302             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3303         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3304         enable dos_paths
3305         enable_weak os2threads
3306         ;;
3307     gnu/kfreebsd)
3308         add_cppflags -D_BSD_SOURCE
3309         ;;
3310     gnu)
3311         ;;
3312     qnx)
3313         add_cppflags -D_QNX_SOURCE
3314         network_extralibs="-lsocket"
3315         ;;
3316     symbian)
3317         SLIBSUF=".dll"
3318         enable dos_paths
3319         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3320         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3321         add_ldflags -Wl,--target1-abs,--no-undefined \
3322                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3323                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3324         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3325                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3326                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3327         ;;
3328     osf1)
3329         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3330         FFSERVERLDFLAGS=
3331         ;;
3332     minix)
3333         ;;
3334     plan9)
3335         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3336                      -D_REENTRANT_SOURCE        \
3337                      -D_RESEARCH_SOURCE         \
3338                      -DFD_SETSIZE=96            \
3339                      -DHAVE_SOCK_OPTS
3340         add_compat strtod.o strtod=avpriv_strtod
3341         network_extralibs='-lbsd'
3342         exeobjs=compat/plan9/main.o
3343         disable ffserver
3344         ln_s='ln -s -f'
3345         cp_f='cp'
3346         ;;
3347     none)
3348         ;;
3349     *)
3350         die "Unknown OS '$target_os'."
3351         ;;
3352 esac
3353
3354 # determine libc flavour
3355
3356 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3357 if check_cpp_condition features.h "defined __UCLIBC__"; then
3358     libc_type=uclibc
3359     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3360 elif check_cpp_condition features.h "defined __GLIBC__"; then
3361     libc_type=glibc
3362     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3363 # MinGW headers can be installed on Cygwin, so check for newlib first.
3364 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3365     libc_type=newlib
3366     add_cppflags -U__STRICT_ANSI__
3367 elif check_header _mingw.h; then
3368     libc_type=mingw
3369     check_cpp_condition _mingw.h \
3370         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3371             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3372         die "ERROR: MinGW runtime version must be >= 3.15."
3373     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3374             __MINGW64_VERSION_MAJOR < 3"; then
3375         add_compat msvcrt/snprintf.o
3376         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3377     fi
3378 elif check_func_headers stdlib.h _get_doserrno; then
3379     libc_type=msvcrt
3380     add_compat strtod.o strtod=avpriv_strtod
3381     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3382                                  _snprintf=avpriv_snprintf  \
3383                                  vsnprintf=avpriv_vsnprintf
3384 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3385     libc_type=klibc
3386 fi
3387
3388 test -n "$libc_type" && enable $libc_type
3389
3390 # hacks for compiler/libc/os combinations
3391
3392 if enabled_all tms470 glibc; then
3393     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3394     add_cppflags -D__USER_LABEL_PREFIX__=
3395     add_cppflags -D__builtin_memset=memset
3396     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3397     add_cflags   -pds=48    # incompatible redefinition of macro
3398 fi
3399
3400 if enabled_all ccc glibc; then
3401     add_ldflags -Wl,-z,now  # calls to libots crash without this
3402 fi
3403
3404 esc(){
3405     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3406 }
3407
3408 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3409
3410 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3411
3412 set_default $PATHS_LIST
3413 set_default nm
3414
3415 # we need to build at least one lib type
3416 if ! enabled_any static shared; then
3417     cat <<EOF
3418 At least one library type must be built.
3419 Specify --enable-static to build the static libraries or --enable-shared to
3420 build the shared libraries as well. To only build the shared libraries specify
3421 --disable-static in addition to --enable-shared.
3422 EOF
3423     exit 1;
3424 fi
3425
3426 die_license_disabled() {
3427     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3428 }
3429
3430 die_license_disabled_gpl() {
3431     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3432 }
3433
3434 die_license_disabled gpl libcdio
3435 die_license_disabled gpl libutvideo
3436 die_license_disabled gpl libx264
3437 die_license_disabled gpl libxavs
3438 die_license_disabled gpl libxvid
3439 die_license_disabled gpl x11grab
3440
3441 die_license_disabled nonfree libaacplus
3442 die_license_disabled nonfree libfaac
3443 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3444 enabled gpl && die_license_disabled_gpl nonfree openssl
3445
3446 die_license_disabled version3 libopencore_amrnb
3447 die_license_disabled version3 libopencore_amrwb
3448 die_license_disabled version3 libvo_aacenc
3449 die_license_disabled version3 libvo_amrwbenc
3450
3451 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3452
3453 disabled optimizations || check_cflags -fomit-frame-pointer
3454
3455 enable_pic() {
3456     enable pic
3457     add_cppflags -DPIC
3458     add_cflags   -fPIC
3459     add_asflags  -fPIC
3460 }
3461
3462 enabled pic && enable_pic
3463
3464 check_cc <<EOF || die "Symbol mangling check failed."
3465 int ff_extern;
3466 EOF
3467 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3468 extern_prefix=${sym%%ff_extern*}
3469
3470 check_cc <<EOF && enable_weak inline_asm
3471 void foo(void) { __asm__ volatile ("" ::); }
3472 EOF
3473
3474 _restrict=
3475 for restrict_keyword in restrict __restrict__ __restrict; do
3476     check_cc <<EOF && _restrict=$restrict_keyword && break
3477 void foo(char * $restrict_keyword p);
3478 EOF
3479 done
3480
3481 check_cc <<EOF && enable attribute_packed
3482 struct { int x; } __attribute__((packed)) x;
3483 EOF
3484
3485 check_cc <<EOF && enable attribute_may_alias
3486 union { int x; } __attribute__((may_alias)) x;
3487 EOF
3488
3489 check_cc <<EOF || die "endian test failed"
3490 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3491 EOF
3492 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3493
3494 if enabled alpha; then
3495
3496     check_cflags -mieee
3497
3498 elif enabled arm; then
3499
3500     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3501 float func(float a, float b){ return a+b; }
3502 EOF
3503
3504     enabled thumb && check_cflags -mthumb || check_cflags -marm
3505     nogas=die
3506
3507     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3508         enable vfp_args
3509     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3510         case "${cross_prefix:-$cc}" in
3511             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3512             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3513 __asm__ (".eabi_attribute 28, 1");
3514 int main(void) { return 0; }
3515 EOF
3516         esac
3517         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3518     fi
3519
3520     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3521     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3522     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3523     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3524     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3525     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3526
3527     [ $target_os = linux ] ||
3528         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3529             $ARCH_EXT_LIST_ARM
3530
3531     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3532     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3533
3534     enabled_all armv6t2 shared !pic && enable_pic
3535
3536 elif enabled mips; then
3537
3538     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3539     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3540      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3541     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3542      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3543     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3544      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3545     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3546      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3547
3548 elif enabled parisc; then
3549
3550     if enabled gcc; then
3551         case $($cc -dumpversion) in
3552             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3553         esac
3554     fi
3555
3556 elif enabled ppc; then
3557
3558     enable local_aligned_8 local_aligned_16
3559
3560     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3561     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3562     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3563     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3564
3565     # AltiVec flags: The FSF version of GCC differs from the Apple version
3566     if enabled altivec; then
3567         nogas=warn
3568         check_cflags -maltivec -mabi=altivec &&
3569         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3570         check_cflags -faltivec
3571
3572         # check if our compiler supports Motorola AltiVec C API
3573         check_cc <<EOF || disable altivec
3574 $inc_altivec_h
3575 int main(void) {
3576     vector signed int v1 = (vector signed int) { 0 };
3577     vector signed int v2 = (vector signed int) { 1 };
3578     v1 = vec_add(v1, v2);
3579     return 0;
3580 }
3581 EOF
3582
3583         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3584     fi
3585
3586 elif enabled sparc; then
3587
3588     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3589
3590 elif enabled x86; then
3591
3592     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3593
3594     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3595
3596     enable local_aligned_8 local_aligned_16
3597
3598     # check whether EBP is available on x86
3599     # As 'i' is stored on the stack, this program will crash
3600     # if the base pointer is used to access it because the
3601     # base pointer is cleared in the inline assembly code.
3602     check_exec_crash <<EOF && enable ebp_available
3603 volatile int i=0;
3604 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3605 return i;
3606 EOF
3607
3608     # check whether EBX is available on x86
3609     check_inline_asm ebx_available '""::"b"(0)' &&
3610         check_inline_asm ebx_available '"":::"%ebx"'
3611
3612     # check whether xmm clobbers are supported
3613     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3614
3615     # check whether binutils is new enough to compile SSSE3/MMXEXT
3616     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3617     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3618
3619     if ! disabled_any asm mmx yasm; then
3620         if check_cmd $yasmexe --version; then
3621             enabled x86_64 && yasm_extra="-m amd64"
3622             yasm_debug="-g dwarf2"
3623         elif check_cmd nasm -v; then
3624             yasmexe=nasm
3625             yasm_debug="-g -F dwarf"
3626             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3627         fi
3628
3629         YASMFLAGS="-f $objformat $yasm_extra"
3630         enabled pic               && append YASMFLAGS "-DPIC"
3631         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3632         case "$objformat" in
3633             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3634         esac
3635
3636         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3637             die "yasm not found, use --disable-yasm for a crippled build"
3638         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3639         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3640         check_yasm "CPU amdnop" && enable cpunop
3641     fi
3642
3643     case "$cpu" in
3644         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3645             disable fast_clz
3646         ;;
3647     esac
3648
3649 fi
3650
3651 if enabled asm; then
3652     as=${gas:=$as}
3653     check_as <<EOF && enable gnu_as || \
3654         $nogas "GNU assembler not found, install gas-preprocessor"
3655 .macro m n
3656 \n: .int 0
3657 .endm
3658 m x
3659 EOF
3660 fi
3661
3662 check_ldflags -Wl,--as-needed
3663
3664 if check_func dlopen; then
3665     ldl=
3666 elif check_func dlopen -ldl; then
3667     ldl=-ldl
3668 fi
3669
3670 if ! disabled network; then
3671     check_type "sys/types.h sys/socket.h" socklen_t
3672     check_type netdb.h "struct addrinfo"
3673     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3674     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3675     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3676     check_type netinet/in.h "struct sockaddr_in6"
3677     check_type poll.h "struct pollfd"
3678     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3679     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3680     check_type netinet/sctp.h "struct sctp_event_subscribe"
3681     check_func getaddrinfo $network_extralibs
3682     check_func getservbyport $network_extralibs
3683     # Prefer arpa/inet.h over winsock2
3684     if check_header arpa/inet.h ; then
3685         check_func closesocket
3686     elif check_header winsock2.h ; then
3687         check_func_headers winsock2.h closesocket -lws2 &&
3688             network_extralibs="-lws2" ||
3689         { check_func_headers winsock2.h closesocket -lws2_32 &&
3690             network_extralibs="-lws2_32"; }
3691         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3692         check_type ws2tcpip.h socklen_t
3693         check_type ws2tcpip.h "struct addrinfo"
3694         check_type ws2tcpip.h "struct group_source_req"
3695         check_type ws2tcpip.h "struct ip_mreq_source"
3696         check_type ws2tcpip.h "struct ipv6_mreq"
3697         check_type winsock2.h "struct pollfd"
3698         check_type ws2tcpip.h "struct sockaddr_in6"
3699         check_type ws2tcpip.h "struct sockaddr_storage"
3700         check_struct winsock2.h "struct sockaddr" sa_len
3701     else
3702         disable network
3703     fi
3704 fi
3705
3706 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3707 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3708
3709 check_func  access
3710 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3711 check_func  fcntl
3712 check_func  fork
3713 check_func  gethrtime
3714 check_func  getopt
3715 check_func  getrusage
3716 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3717 check_func  gettimeofday
3718 check_func  inet_aton $network_extralibs
3719 check_func  isatty
3720 check_func  localtime_r
3721 check_func  ${malloc_prefix}memalign            && enable memalign
3722 check_func  mkstemp
3723 check_func  mmap
3724 check_func  mprotect
3725 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3726 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3727 check_func  setrlimit
3728 check_func  strerror_r
3729 check_func  sched_getaffinity
3730 check_func  sysconf
3731 check_func  sysctl
3732 check_func  usleep
3733 check_func_headers conio.h kbhit
3734 check_func_headers windows.h PeekNamedPipe
3735 check_func_headers io.h setmode
3736 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3737 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3738 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3739 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3740 check_func_headers windows.h GetProcessAffinityMask
3741 check_func_headers windows.h GetProcessTimes
3742 check_func_headers windows.h GetSystemTimeAsFileTime
3743 check_func_headers windows.h MapViewOfFile
3744 check_func_headers windows.h SetConsoleTextAttribute
3745 check_func_headers windows.h Sleep
3746 check_func_headers windows.h VirtualAlloc
3747 check_func_headers glob.h glob
3748
3749 check_header direct.h
3750 check_header dlfcn.h
3751 check_header dxva.h
3752 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3753 check_header io.h
3754 check_header libcrystalhd/libcrystalhd_if.h
3755 check_header malloc.h
3756 check_header poll.h
3757 check_header sys/mman.h
3758 check_header sys/param.h
3759 check_header sys/resource.h
3760 check_header sys/select.h
3761 check_header sys/time.h
3762 check_header termios.h
3763 check_header unistd.h
3764 check_header vdpau/vdpau.h
3765 check_header vdpau/vdpau_x11.h
3766 check_header windows.h
3767 check_header X11/extensions/XvMClib.h
3768 check_header asm/types.h
3769
3770 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3771 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3772
3773 # check for VDA header
3774 if ! disabled vda && ! enabled ppc; then
3775     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3776         enable vda
3777         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3778     fi
3779 fi
3780
3781 if ! disabled w32threads && ! enabled pthreads; then
3782     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3783 fi
3784
3785 # check for some common methods of building with pthread support
3786 # do this before the optional library checks as some of them require pthreads
3787 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3788     enable pthreads
3789     if check_func pthread_create; then
3790         :
3791     elif check_func pthread_create -pthread; then
3792         add_cflags -pthread
3793         add_extralibs -pthread
3794     elif check_func pthread_create -pthreads; then
3795         add_cflags -pthreads
3796         add_extralibs -pthreads
3797     elif check_func pthread_create -lpthreadGC2; then
3798         add_extralibs -lpthreadGC2
3799     elif ! check_lib pthread.h pthread_create -lpthread; then
3800         disable pthreads
3801     fi
3802 fi
3803
3804 for thread in $THREADS_LIST; do
3805     if enabled $thread; then
3806         test -n "$thread_type" &&
3807             die "ERROR: Only one thread type must be selected." ||
3808             thread_type="$thread"
3809     fi
3810 done
3811
3812 if enabled pthreads; then
3813   check_func pthread_cancel
3814 fi
3815
3816 check_lib math.h sin -lm && LIBM="-lm"
3817 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3818 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3819
3820 atan2f_args=2
3821 ldexpf_args=2
3822 powf_args=2
3823
3824 for func in $MATH_FUNCS; do
3825     eval check_mathfunc $func \${${func}_args:-1}
3826 done
3827
3828 # these are off by default, so fail if requested and not available
3829 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3830 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3831 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3832 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3833 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3834 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3835 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3836 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3837 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3838                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3839                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3840 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3841 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3842 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3843 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"
3844 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3845 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3846 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3847                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3848                         done || die "ERROR: libgsm not found"; }
3849 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3850 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3851 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3852 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3853 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3854 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3855 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3856 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3857                          check_lib openjpeg.h opj_version -lopenjpeg ||
3858                          die "ERROR: libopenjpeg not found"; }
3859 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3860 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3861 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3862 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3863 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3864 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3865 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3866     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3867     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3868 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3869 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3870                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3871                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3872 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3873 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3874 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3875 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3876 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3877 enabled libvpx     && {
3878     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3879                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3880     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 ||
3881                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3882     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3883     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3884 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3885                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3886                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3887 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3888 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3889 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3890                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3891                         die "ERROR: openal not found"; } &&
3892                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3893                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3894 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3895                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3896                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3897                         die "ERROR: openssl not found"; }
3898
3899 if enabled gnutls; then
3900     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3901     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3902 fi
3903
3904 # libdc1394 check
3905 if enabled libdc1394; then
3906     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3907         enable libdc1394_2; } ||
3908     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3909         enable libdc1394_1; } ||
3910     die "ERROR: No version of libdc1394 found "
3911 fi
3912
3913 SDL_CONFIG="${cross_prefix}sdl-config"
3914 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3915     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3916     enable sdl &&
3917     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3918 else
3919   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3920     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3921     sdl_libs=$("${SDL_CONFIG}" --libs)
3922     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3923     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3924     enable sdl &&
3925     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3926   fi
3927 fi
3928 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3929
3930 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3931 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3932 perl --version > /dev/null 2>&1 && enable perl || disable perl
3933 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3934 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3935
3936 check_header linux/fb.h
3937 check_header linux/videodev.h
3938 check_header linux/videodev2.h
3939 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
3940
3941 check_header sys/videoio.h
3942
3943 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3944 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3945 # w32api 3.12 had it defined wrong
3946 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3947
3948 check_type "dshow.h" IBaseFilter
3949
3950 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3951 { check_header dev/bktr/ioctl_meteor.h &&
3952   check_header dev/bktr/ioctl_bt848.h; } ||
3953 { check_header machine/ioctl_meteor.h &&
3954   check_header machine/ioctl_bt848.h; } ||
3955 { check_header dev/video/meteor/ioctl_meteor.h &&
3956   check_header dev/video/bktr/ioctl_bt848.h; } ||
3957 check_header dev/ic/bt8xx.h
3958
3959 check_header sndio.h
3960 if check_struct sys/soundcard.h audio_buf_info bytes; then
3961     enable_safe sys/soundcard.h
3962 else
3963     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3964     #include <sys/soundcard.h>
3965     audio_buf_info abc;
3966 EOF
3967 fi
3968 check_header soundcard.h
3969
3970 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3971
3972 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3973     check_func jack_port_get_latency_range -ljack
3974
3975 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3976
3977 if enabled libcdio; then
3978     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3979 fi
3980
3981 enabled x11grab                                           &&
3982 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3983 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3984 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3985
3986 if ! disabled vaapi; then
3987     check_lib va/va.h vaInitialize -lva && {
3988         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3989         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3990     } || disable vaapi
3991 fi
3992
3993 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3994     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3995         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3996 fi
3997
3998 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3999 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4000 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
4001
4002 # add some useful compiler flags if supported
4003 check_cflags -Wdeclaration-after-statement
4004 check_cflags -Wall
4005 check_cflags -Wno-parentheses
4006 check_cflags -Wno-switch
4007 check_cflags -Wno-format-zero-length
4008 check_cflags -Wdisabled-optimization
4009 check_cflags -Wpointer-arith
4010 check_cflags -Wredundant-decls
4011 check_cflags -Wno-pointer-sign
4012 check_cflags -Wwrite-strings
4013 check_cflags -Wtype-limits
4014 check_cflags -Wundef
4015 check_cflags -Wmissing-prototypes
4016 check_cflags -Wno-pointer-to-int-cast
4017 check_cflags -Wstrict-prototypes
4018 enabled extra_warnings && check_cflags -Winline
4019
4020 # add some linker flags
4021 check_ldflags -Wl,--warn-common
4022 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4023 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4024
4025 enabled xmm_clobber_test &&
4026     check_ldflags -Wl,--wrap,avcodec_open2              \
4027                   -Wl,--wrap,avcodec_decode_audio4      \
4028                   -Wl,--wrap,avcodec_decode_video2      \
4029                   -Wl,--wrap,avcodec_decode_subtitle2   \
4030                   -Wl,--wrap,avcodec_encode_audio2      \
4031                   -Wl,--wrap,avcodec_encode_video       \
4032                   -Wl,--wrap,avcodec_encode_subtitle    \
4033                   -Wl,--wrap,sws_scale ||
4034     disable xmm_clobber_test
4035
4036 echo "X{};" > $TMPV
4037 if test_ldflags -Wl,--version-script,$TMPV; then
4038     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4039     check_cc <<EOF && enable symver_asm_label
4040 void ff_foo(void) __asm__ ("av_foo@VERSION");
4041 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4042 EOF
4043     check_cc <<EOF && enable symver_gnu_asm
4044 __asm__(".symver ff_foo,av_foo@VERSION");
4045 void ff_foo(void) {}
4046 EOF
4047 fi
4048
4049 if [ -z "$optflags" ]; then
4050     if enabled small; then
4051         optflags=$cflags_size
4052     elif enabled optimizations; then
4053         optflags=$cflags_speed
4054     else
4055         optflags=$cflags_noopt
4056     fi
4057 fi
4058
4059 check_optflags(){
4060     check_cflags "$@"
4061     enabled lto && check_ldflags "$@"
4062 }
4063
4064
4065 if enabled lto; then
4066     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4067     check_cflags  -flto
4068     check_ldflags -flto $cpuflags
4069 fi
4070
4071 check_optflags $optflags
4072 check_optflags -fno-math-errno
4073 check_optflags -fno-signed-zeros
4074
4075 enabled ftrapv && check_cflags -ftrapv
4076
4077 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4078 int x;
4079 EOF
4080
4081
4082 if enabled icc; then
4083     # Just warnings, no remarks
4084     check_cflags -w1
4085     # -wd: Disable following warnings
4086     # 144, 167, 556: -Wno-pointer-sign
4087     # 188: enumerated type mixed with another type
4088     # 1292: attribute "foo" ignored
4089     # 1419: external declaration in primary source file
4090     # 10006: ignoring unknown option -fno-signed-zeros
4091     # 10148: ignoring unknown option -Wno-parentheses
4092     # 10156: ignoring option '-W'; no argument required
4093     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4094     # 11030: Warning unknown option --as-needed
4095     # 10156: ignoring option '-export'; no argument required
4096     check_ldflags -wd10156,11030
4097     # Allow to compile with optimizations
4098     check_ldflags -march=$cpu
4099     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4100     enable ebp_available
4101     if enabled x86_32; then
4102         icc_version=$($cc -dumpversion)
4103         test ${icc_version%%.*} -ge 11 &&
4104             check_cflags -falign-stack=maintain-16-byte ||
4105             disable aligned_stack
4106     fi
4107 elif enabled ccc; then
4108     # disable some annoying warnings
4109     add_cflags -msg_disable bitnotint
4110     add_cflags -msg_disable mixfuncvoid
4111     add_cflags -msg_disable nonstandcast
4112     add_cflags -msg_disable unsupieee
4113 elif enabled gcc; then
4114     check_optflags -fno-tree-vectorize
4115     check_cflags -Werror=implicit-function-declaration
4116     check_cflags -Werror=missing-prototypes
4117     check_cflags -Werror=return-type
4118     check_cflags -Werror=vla
4119 elif enabled llvm_gcc; then
4120     check_cflags -mllvm -stack-alignment=16
4121 elif enabled clang; then
4122     check_cflags -mllvm -stack-alignment=16
4123     check_cflags -Qunused-arguments
4124     check_cflags -Werror=implicit-function-declaration
4125     check_cflags -Werror=missing-prototypes
4126     check_cflags -Werror=return-type
4127 elif enabled armcc; then
4128     # 2523: use of inline assembler is deprecated
4129     add_cflags -W${armcc_opt},--diag_suppress=2523
4130     add_cflags -W${armcc_opt},--diag_suppress=1207
4131     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4132     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4133     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4134     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4135 elif enabled tms470; then
4136     add_cflags -pds=824 -pds=837
4137 elif enabled pathscale; then
4138     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4139 elif enabled msvc; then
4140     enabled x86_32 && disable aligned_stack
4141 fi
4142
4143 case $target_os in
4144     osf1)
4145         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4146     ;;
4147     plan9)
4148         add_cppflags -Dmain=plan9_main
4149     ;;
4150 esac
4151
4152 enabled_any $THREADS_LIST      && enable threads
4153
4154 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4155
4156 check_deps $CONFIG_LIST       \
4157            $CONFIG_EXTRA      \
4158            $HAVE_LIST         \
4159            $ALL_COMPONENTS    \
4160
4161
4162 if test $target_os = "haiku"; then
4163     disable memalign
4164     disable posix_memalign
4165 fi
4166
4167 ! enabled_any memalign posix_memalign aligned_malloc &&
4168     enabled_any $need_memalign && enable memalign_hack
4169
4170 # add_dep lib dep
4171 # -> enable ${lib}_deps_${dep}
4172 # -> add $dep to ${lib}_deps only once
4173 add_dep() {
4174     lib=$1
4175     dep=$2
4176     enabled "${lib}_deps_${dep}" && return 0
4177     enable  "${lib}_deps_${dep}"
4178     prepend "${lib}_deps" $dep
4179 }
4180
4181 # merge deps lib components
4182 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4183 merge_deps() {
4184     lib=$1
4185     shift
4186     for comp in $*; do
4187         enabled $comp || continue
4188         eval "dep=\"\$${comp}_deps\""
4189         for d in $dep; do
4190             add_dep $lib $d
4191         done
4192     done
4193 }
4194
4195 merge_deps libavfilter $FILTER_LIST
4196
4197 echo "install prefix            $prefix"
4198 echo "source path               $source_path"
4199 echo "C compiler                $cc"
4200 echo "ARCH                      $arch ($cpu)"
4201 if test "$build_suffix" != ""; then
4202     echo "build suffix              $build_suffix"
4203 fi
4204 if test "$progs_suffix" != ""; then
4205     echo "progs suffix              $progs_suffix"
4206 fi
4207 if test "$extra_version" != ""; then
4208     echo "version string suffix     $extra_version"
4209 fi
4210 echo "big-endian                ${bigendian-no}"
4211 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4212 if enabled x86; then
4213     echo "${yasmexe}                      ${yasm-no}"
4214     echo "MMX enabled               ${mmx-no}"
4215     echo "MMXEXT enabled            ${mmxext-no}"
4216     echo "3DNow! enabled            ${amd3dnow-no}"
4217     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4218     echo "SSE enabled               ${sse-no}"
4219     echo "SSSE3 enabled             ${ssse3-no}"
4220     echo "AVX enabled               ${avx-no}"
4221     echo "FMA4 enabled              ${fma4-no}"
4222     echo "CMOV enabled              ${cmov-no}"
4223     echo "CMOV is fast              ${fast_cmov-no}"
4224     echo "EBX available             ${ebx_available-no}"
4225     echo "EBP available             ${ebp_available-no}"
4226 fi
4227 if enabled arm; then
4228     echo "ARMv5TE enabled           ${armv5te-no}"
4229     echo "ARMv6 enabled             ${armv6-no}"
4230     echo "ARMv6T2 enabled           ${armv6t2-no}"
4231     echo "VFP enabled               ${vfp-no}"
4232     echo "NEON enabled              ${neon-no}"
4233     echo "THUMB enabled             ${thumb-no}"
4234 fi
4235 if enabled mips; then
4236     echo "MIPS FPU enabled          ${mipsfpu-no}"
4237     echo "MIPS32R2 enabled          ${mips32r2-no}"
4238     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4239     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4240 fi
4241 if enabled ppc; then
4242     echo "AltiVec enabled           ${altivec-no}"
4243     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4244     echo "dcbzl available           ${dcbzl-no}"
4245 fi
4246 if enabled sparc; then
4247     echo "VIS enabled               ${vis-no}"
4248 fi
4249 echo "debug symbols             ${debug-no}"
4250 echo "strip symbols             ${stripping-no}"
4251 echo "optimize for size         ${small-no}"
4252 echo "optimizations             ${optimizations-no}"
4253 echo "static                    ${static-no}"
4254 echo "shared                    ${shared-no}"
4255 echo "postprocessing support    ${postproc-no}"
4256 echo "new filter support        ${avfilter-no}"
4257 echo "network support           ${network-no}"
4258 echo "threading support         ${thread_type-no}"
4259 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4260 echo "SDL support               ${sdl-no}"
4261 echo "libdxva2 enabled          ${dxva2-no}"
4262 echo "libva enabled             ${vaapi-no}"
4263 echo "libvdpau enabled          ${vdpau-no}"
4264 echo "AVISynth enabled          ${avisynth-no}"
4265 echo "frei0r enabled            ${frei0r-no}"
4266 echo "gnutls enabled            ${gnutls-no}"
4267 echo "libaacplus enabled        ${libaacplus-no}"
4268 echo "libass enabled            ${libass-no}"
4269 echo "libcaca enabled           ${libcaca-no}"
4270 echo "libcdio support           ${libcdio-no}"
4271 echo "libcelt enabled           ${libcelt-no}"
4272 echo "libdc1394 support         ${libdc1394-no}"
4273 echo "libfaac enabled           ${libfaac-no}"
4274 echo "libfdk-aac enabled        ${libfdk_aac-no}"
4275 echo "libgsm enabled            ${libgsm-no}"
4276 echo "libiec61883 support       ${libiec61883-no}"
4277 echo "libilbc enabled           ${libilbc-no}"
4278 echo "libmodplug enabled        ${libmodplug-no}"
4279 echo "libmp3lame enabled        ${libmp3lame-no}"
4280 echo "libnut enabled            ${libnut-no}"
4281 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
4282 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
4283 echo "libopencv support         ${libopencv-no}"
4284 echo "libopenjpeg enabled       ${libopenjpeg-no}"
4285 echo "libopus enabled           ${libopus-no}"
4286 echo "libpulse enabled          ${libpulse-no}"
4287 echo "librtmp enabled           ${librtmp-no}"
4288 echo "libschroedinger enabled   ${libschroedinger-no}"
4289 echo "libsoxr enabled           ${libsoxr-no}"
4290 echo "libspeex enabled          ${libspeex-no}"
4291 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
4292 echo "libtheora enabled         ${libtheora-no}"
4293 echo "libtwolame enabled        ${libtwolame-no}"
4294 echo "libutvideo enabled        ${libutvideo-no}"
4295 echo "libv4l2 enabled           ${libv4l2-no}"
4296 echo "libvo-aacenc support      ${libvo_aacenc-no}"
4297 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
4298 echo "libvorbis enabled         ${libvorbis-no}"
4299 echo "libvpx enabled            ${libvpx-no}"
4300 echo "libx264 enabled           ${libx264-no}"
4301 echo "libxavs enabled           ${libxavs-no}"
4302 echo "libxvid enabled           ${libxvid-no}"
4303 echo "openal enabled            ${openal-no}"
4304 echo "openssl enabled           ${openssl-no}"
4305 echo "zlib enabled              ${zlib-no}"
4306 echo "bzlib enabled             ${bzlib-no}"
4307 echo "texi2html enabled         ${texi2html-no}"
4308 echo "perl enabled              ${perl-no}"
4309 echo "pod2man enabled           ${pod2man-no}"
4310 echo "makeinfo enabled          ${makeinfo-no}"
4311 test -n "$random_seed" &&
4312     echo "random seed               ${random_seed}"
4313 echo
4314
4315 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4316     echo "Enabled ${type}s:"
4317     eval list=\$$(toupper $type)_LIST
4318     print_enabled '_*' $list | sort | pr -r -3 -t
4319     echo
4320 done
4321
4322 license="LGPL version 2.1 or later"
4323 if enabled nonfree; then
4324     license="nonfree and unredistributable"
4325 elif enabled gplv3; then
4326     license="GPL version 3 or later"
4327 elif enabled lgplv3; then
4328     license="LGPL version 3 or later"
4329 elif enabled gpl; then
4330     license="GPL version 2 or later"
4331 fi
4332
4333 echo "License: $license"
4334
4335 echo "Creating config.mak and config.h..."
4336
4337 test -e Makefile || $ln_s "$source_path/Makefile" .
4338
4339 enabled stripping || strip="echo skipping strip"
4340
4341 config_files="$TMPH config.mak"
4342
4343 cat > config.mak <<EOF
4344 # Automatically generated by configure - do not modify!
4345 ifndef FFMPEG_CONFIG_MAK
4346 FFMPEG_CONFIG_MAK=1
4347 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4348 prefix=$prefix
4349 LIBDIR=\$(DESTDIR)$libdir
4350 SHLIBDIR=\$(DESTDIR)$shlibdir
4351 INCDIR=\$(DESTDIR)$incdir
4352 BINDIR=\$(DESTDIR)$bindir
4353 DATADIR=\$(DESTDIR)$datadir
4354 MANDIR=\$(DESTDIR)$mandir
4355 SRC_PATH=$source_path
4356 ifndef MAIN_MAKEFILE
4357 SRC_PATH:=\$(SRC_PATH:.%=..%)
4358 endif
4359 CC_IDENT=$cc_ident
4360 ARCH=$arch
4361 CC=$cc
4362 CXX=$cxx
4363 AS=$as
4364 LD=$ld
4365 DEPCC=$dep_cc
4366 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4367 DEPAS=$as
4368 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4369 YASM=$yasmexe
4370 DEPYASM=$yasmexe
4371 AR=$ar
4372 ARFLAGS=$arflags
4373 AR_O=$ar_o
4374 RANLIB=$ranlib
4375 CP=cp -p
4376 LN_S=$ln_s
4377 STRIP=$strip
4378 CPPFLAGS=$CPPFLAGS
4379 CFLAGS=$CFLAGS
4380 CXXFLAGS=$CXXFLAGS
4381 ASFLAGS=$ASFLAGS
4382 AS_C=$AS_C
4383 AS_O=$AS_O
4384 CC_C=$CC_C
4385 CC_E=$CC_E
4386 CC_O=$CC_O
4387 CXX_C=$CXX_C
4388 CXX_O=$CXX_O
4389 LD_O=$LD_O
4390 LD_LIB=$LD_LIB
4391 LD_PATH=$LD_PATH
4392 DLLTOOL=$dlltool
4393 LDFLAGS=$LDFLAGS
4394 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4395 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4396 YASMFLAGS=$YASMFLAGS
4397 BUILDSUF=$build_suffix
4398 PROGSSUF=$progs_suffix
4399 FULLNAME=$FULLNAME
4400 LIBPREF=$LIBPREF
4401 LIBSUF=$LIBSUF
4402 LIBNAME=$LIBNAME
4403 SLIBPREF=$SLIBPREF
4404 SLIBSUF=$SLIBSUF
4405 EXESUF=$EXESUF
4406 EXTRA_VERSION=$extra_version
4407 CCDEP=$CCDEP
4408 CXXDEP=$CXXDEP
4409 CCDEP_FLAGS=$CCDEP_FLAGS
4410 ASDEP=$ASDEP
4411 ASDEP_FLAGS=$ASDEP_FLAGS
4412 CC_DEPFLAGS=$CC_DEPFLAGS
4413 AS_DEPFLAGS=$AS_DEPFLAGS
4414 HOSTCC=$host_cc
4415 HOSTLD=$host_ld
4416 HOSTCFLAGS=$host_cflags
4417 HOSTEXESUF=$HOSTEXESUF
4418 HOSTLDFLAGS=$host_ldflags
4419 HOSTLIBS=$host_libs
4420 DEPHOSTCC=$host_cc
4421 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4422 HOSTCCDEP=$HOSTCCDEP
4423 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4424 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4425 HOSTCC_C=$HOSTCC_C
4426 HOSTCC_O=$HOSTCC_O
4427 HOSTLD_O=$HOSTLD_O
4428 TARGET_EXEC=$target_exec
4429 TARGET_PATH=$target_path
4430 LIBS-ffplay=$sdl_libs
4431 CFLAGS-ffplay=$sdl_cflags
4432 ZLIB=$($ldflags_filter -lz)
4433 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4434 EXTRALIBS=$extralibs
4435 COMPAT_OBJS=$compat_objs
4436 EXEOBJS=$exeobjs
4437 INSTALL=$install
4438 LIBTARGET=${LIBTARGET}
4439 SLIBNAME=${SLIBNAME}
4440 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4441 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4442 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4443 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4444 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4445 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4446 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4447 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4448 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4449 NOREDZONE_FLAGS=$noredzone_flags
4450 EOF
4451
4452 get_version(){
4453     lcname=lib${1}
4454     name=$(toupper $lcname)
4455     file=$source_path/$lcname/version.h
4456     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4457     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4458     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4459     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4460 }
4461
4462 map 'get_version $v' $LIBRARY_LIST
4463
4464 cat > $TMPH <<EOF
4465 /* Automatically generated by configure - do not modify! */
4466 #ifndef FFMPEG_CONFIG_H
4467 #define FFMPEG_CONFIG_H
4468 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4469 #define FFMPEG_LICENSE "$(c_escape $license)"
4470 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4471 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4472 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4473 #define av_restrict $_restrict
4474 #define EXTERN_PREFIX "${extern_prefix}"
4475 #define EXTERN_ASM ${extern_prefix}
4476 #define SLIBSUF "$SLIBSUF"
4477 #define HAVE_MMX2 HAVE_MMXEXT
4478 EOF
4479
4480 test -n "$assert_level" &&
4481     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4482
4483 test -n "$malloc_prefix" &&
4484     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4485
4486 if enabled yasm; then
4487     append config_files $TMPASM
4488     printf '' >$TMPASM
4489 fi
4490
4491 print_config ARCH_   "$config_files" $ARCH_LIST
4492 print_config HAVE_   "$config_files" $HAVE_LIST
4493 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4494                                      $CONFIG_EXTRA      \
4495                                      $ALL_COMPONENTS    \
4496
4497 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4498 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4499
4500 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4501 cp_if_changed $TMPH config.h
4502 touch .config
4503
4504 enabled yasm && cp_if_changed $TMPASM config.asm
4505
4506 cat > $TMPH <<EOF
4507 /* Generated by ffconf */
4508 #ifndef AVUTIL_AVCONFIG_H
4509 #define AVUTIL_AVCONFIG_H
4510 EOF
4511
4512 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4513
4514 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4515
4516 cp_if_changed $TMPH libavutil/avconfig.h
4517
4518 if test -n "$WARNINGS"; then
4519     printf "\n$WARNINGS"
4520     enabled fatal_warnings && exit 1
4521 fi
4522
4523 # build pkg-config files
4524
4525 pkgconfig_generate(){
4526     name=$1
4527     shortname=${name#lib}${build_suffix}
4528     comment=$2
4529     version=$3
4530     libs=$4
4531     requires=$5
4532     enabled ${name#lib} || return 0
4533     mkdir -p $name
4534     cat <<EOF > $name/$name${build_suffix}.pc
4535 prefix=$prefix
4536 exec_prefix=\${prefix}
4537 libdir=$libdir
4538 includedir=$incdir
4539
4540 Name: $name
4541 Description: $comment
4542 Version: $version
4543 Requires: $(enabled shared || echo $requires)
4544 Requires.private: $(enabled shared && echo $requires)
4545 Conflicts:
4546 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4547 Libs.private: $(enabled shared && echo $libs)
4548 Cflags: -I\${includedir}
4549 EOF
4550
4551 mkdir -p doc/examples/pc-uninstalled
4552 includedir=${source_path}
4553 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4554     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4555 prefix=
4556 exec_prefix=
4557 libdir=\${pcfiledir}/../../../$name
4558 includedir=${includedir}
4559
4560 Name: $name
4561 Description: $comment
4562 Version: $version
4563 Requires: $requires
4564 Conflicts:
4565 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4566 Cflags: -I\${includedir}
4567 EOF
4568 }
4569
4570 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4571 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4572 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4573 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4574 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4575 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4576 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4577 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4578
4579 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4580 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4581
4582 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4583 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4584 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4585 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4586 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4587 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4588 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4589 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4590 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4591
4592 fix_ffmpeg_remote(){
4593     git_remote_from=$1
4594     git_remote_to=$2
4595     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4596     if [ "$fixme_remote" != "" ]; then
4597         echolog "
4598 Outdated domain in git config, the official domain for ffmpeg git is since
4599 November 2011, source.ffmpeg.org, both the old and the new point to the same
4600 repository and server. To update it enter the following commands:
4601 "
4602         for remote in $fixme_remote; do
4603             echolog "git remote set-url $remote $git_remote_to"
4604         done
4605     fi
4606 }
4607
4608 if test -f "$source_path/.git/config"; then
4609     remote_from=git.videolan.org
4610     remote_to=source.ffmpeg.org
4611     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4612     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4613 fi