atrac3: fix error handling
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --disable-network        disable network support [no]
134   --disable-dct            disable DCT code
135   --disable-dwt            disable DWT code
136   --disable-lsp            disable LSP code
137   --disable-lzo            disable LZO decoder code
138   --disable-mdct           disable MDCT code
139   --disable-rdft           disable RDFT code
140   --disable-fft            disable FFT code
141
142 Hardware accelerators:
143   --disable-dxva2          disable DXVA2 code [autodetect]
144   --disable-vaapi          disable VAAPI code [autodetect]
145   --enable-vda             enable VDA code
146   --disable-vdpau          disable VDPAU code [autodetect]
147
148 Individual component options:
149   --disable-everything     disable all components listed below
150   --disable-encoder=NAME   disable encoder NAME
151   --enable-encoder=NAME    enable encoder NAME
152   --disable-encoders       disable all encoders
153   --disable-decoder=NAME   disable decoder NAME
154   --enable-decoder=NAME    enable decoder NAME
155   --disable-decoders       disable all decoders
156   --disable-hwaccel=NAME   disable hwaccel NAME
157   --enable-hwaccel=NAME    enable hwaccel NAME
158   --disable-hwaccels       disable all hwaccels
159   --disable-muxer=NAME     disable muxer NAME
160   --enable-muxer=NAME      enable muxer NAME
161   --disable-muxers         disable all muxers
162   --disable-demuxer=NAME   disable demuxer NAME
163   --enable-demuxer=NAME    enable demuxer NAME
164   --disable-demuxers       disable all demuxers
165   --enable-parser=NAME     enable parser NAME
166   --disable-parser=NAME    disable parser NAME
167   --disable-parsers        disable all parsers
168   --enable-bsf=NAME        enable bitstream filter NAME
169   --disable-bsf=NAME       disable bitstream filter NAME
170   --disable-bsfs           disable all bitstream filters
171   --enable-protocol=NAME   enable protocol NAME
172   --disable-protocol=NAME  disable protocol NAME
173   --disable-protocols      disable all protocols
174   --enable-indev=NAME      enable input device NAME
175   --disable-indev=NAME     disable input device NAME
176   --disable-indevs         disable input devices
177   --enable-outdev=NAME     enable output device NAME
178   --disable-outdev=NAME    disable output device NAME
179   --disable-outdevs        disable output devices
180   --disable-devices        disable all devices
181   --enable-filter=NAME     enable filter NAME
182   --disable-filter=NAME    disable filter NAME
183   --disable-filters        disable all filters
184
185 External library support:
186   --enable-avisynth        enable reading of AVISynth script files [no]
187   --disable-bzlib          disable bzlib [autodetect]
188   --enable-fontconfig      enable fontconfig
189   --enable-frei0r          enable frei0r video filtering
190   --enable-gnutls          enable gnutls [no]
191   --disable-iconv          disable iconv [autodetect]
192   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
193   --enable-libass          enable libass subtitles rendering [no]
194   --enable-libbluray       enable BluRay reading using libbluray [no]
195   --enable-libcaca         enable textual display using libcaca
196   --enable-libcelt         enable CELT decoding via libcelt [no]
197   --enable-libcdio         enable audio CD grabbing with libcdio
198   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
199                            and libraw1394 [no]
200   --enable-libfaac         enable AAC encoding via libfaac [no]
201   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
202   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
203   --enable-libfreetype     enable libfreetype [no]
204   --enable-libgsm          enable GSM de/encoding via libgsm [no]
205   --enable-libiec61883     enable iec61883 via libiec61883 [no]
206   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
207   --enable-libmodplug      enable ModPlug via libmodplug [no]
208   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
209   --enable-libnut          enable NUT (de)muxing via libnut,
210                            native (de)muxer exists [no]
211   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
212   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
213   --enable-libopencv       enable video filtering via libopencv [no]
214   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
215   --enable-libopus         enable Opus decoding via libopus [no]
216   --enable-libpulse        enable Pulseaudio input via libpulse [no]
217   --enable-librtmp         enable RTMP[E] support via librtmp [no]
218   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
219   --enable-libsoxr         enable Include libsoxr resampling [no]
220   --enable-libspeex        enable Speex de/encoding via libspeex [no]
221   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
222   --enable-libtheora       enable Theora encoding via libtheora [no]
223   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
224   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
225   --enable-libv4l2         enable libv4l2/v4l-utils [no]
226   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
227   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
228   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
229                            native implementation exists [no]
230   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
231   --enable-libx264         enable H.264 encoding via x264 [no]
232   --enable-libxavs         enable AVS encoding via xavs [no]
233   --enable-libxvid         enable Xvid encoding via xvidcore,
234                            native MPEG-4/Xvid encoder exists [no]
235   --enable-openal          enable OpenAL 1.1 capture support [no]
236   --enable-openssl         enable openssl [no]
237   --enable-x11grab         enable X11 grabbing [no]
238   --disable-zlib           disable zlib [autodetect]
239
240 Advanced options (experts only):
241   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
242   --enable-cross-compile   assume a cross-compiler is used
243   --sysroot=PATH           root of cross-build tree
244   --sysinclude=PATH        location of cross-build system headers
245   --target-os=OS           compiler targets OS [$target_os]
246   --target-exec=CMD        command to run executables on target
247   --target-path=DIR        path to view of build directory on target
248   --toolchain=NAME         set tool defaults according to NAME
249   --nm=NM                  use nm tool NM [$nm_default]
250   --ar=AR                  use archive tool AR [$ar_default]
251   --as=AS                  use assembler AS [$as_default]
252   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
253   --cc=CC                  use C compiler CC [$cc_default]
254   --cxx=CXX                use C compiler CXX [$cxx_default]
255   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
256   --ld=LD                  use linker LD [$ld_default]
257   --host-cc=HOSTCC         use host C compiler HOSTCC
258   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
259   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
260   --host-ld=HOSTLD         use host linker HOSTLD
261   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
262   --host-libs=HLIBS        use libs HLIBS when linking for host
263   --host-os=OS             compiler host OS [$target_os]
264   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
265   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
266   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
267   --extra-libs=ELIBS       add ELIBS [$ELIBS]
268   --extra-version=STRING   version string suffix []
269   --optflags=OPTFLAGS      override optimization-related compiler flags
270   --build-suffix=SUFFIX    library name suffix []
271   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
272   --progs-suffix=SUFFIX    program name suffix []
273   --arch=ARCH              select architecture [$arch]
274   --cpu=CPU                select the minimum required CPU (affects
275                            instruction selection, may crash on older CPUs)
276   --enable-pic             build position-independent code
277   --enable-sram            allow use of on-chip SRAM
278   --enable-thumb           compile for Thumb instruction set
279   --disable-symver         disable symbol versioning
280   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
281   --disable-safe-bitstream-reader
282                            disable buffer boundary checking in bitreaders
283                            (faster, but may crash)
284   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
285   --enable-lto             use link-time optimization
286
287 Optimization options (experts only):
288   --disable-asm            disable all assembler optimizations
289   --disable-altivec        disable AltiVec optimizations
290   --disable-amd3dnow       disable 3DNow! optimizations
291   --disable-amd3dnowext    disable 3DNow! extended optimizations
292   --disable-mmx            disable MMX optimizations
293   --disable-mmxext         disable MMXEXT optimizations
294   --disable-sse            disable SSE optimizations
295   --disable-sse2           disable SSE2 optimizations
296   --disable-sse3           disable SSE3 optimizations
297   --disable-ssse3          disable SSSE3 optimizations
298   --disable-sse4           disable SSE4 optimizations
299   --disable-sse42          disable SSE4.2 optimizations
300   --disable-avx            disable AVX optimizations
301   --disable-fma4           disable FMA4 optimizations
302   --disable-armv5te        disable armv5te optimizations
303   --disable-armv6          disable armv6 optimizations
304   --disable-armv6t2        disable armv6t2 optimizations
305   --disable-vfp            disable VFP optimizations
306   --disable-neon           disable NEON optimizations
307   --disable-vis            disable VIS optimizations
308   --disable-inline-asm     disable use of inline assembler
309   --disable-yasm           disable use of yasm assembler
310   --disable-mips32r2       disable MIPS32R2 optimizations
311   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
312   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
313   --disable-mipsfpu        disable floating point MIPS optimizations
314   --disable-fast-unaligned consider unaligned accesses slow
315
316 Developer options (useful when working on FFmpeg itself):
317   --enable-coverage        build with test coverage instrumentation
318   --disable-debug          disable debugging symbols
319   --enable-debug=LEVEL     set the debug level [$debuglevel]
320   --disable-optimizations  disable compiler optimizations
321   --enable-extra-warnings  enable more compiler warnings
322   --disable-stripping      disable stripping of executables and shared libraries
323   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
324                            2 causes a slowdown at runtime.
325   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
326   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
327                            leaks and errors, using the specified valgrind binary.
328                            Cannot be combined with --target-exec
329   --enable-ftrapv          Trap arithmetic overflows
330   --samples=PATH           location of test samples for FATE, if not set use
331                            \$FATE_SAMPLES at make invocation time.
332   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
333                            should be used only for debugging purposes)
334   --enable-random          randomly enable/disable components
335   --disable-random
336   --enable-random=LIST     randomly enable/disable specific components or
337   --disable-random=LIST    component groups. LIST is a comma-separated list
338                            of NAME[:PROB] entries where NAME is a component
339                            (group) and PROB the probability associated with
340                            NAME (default 0.5).
341   --random-seed=VALUE      seed value for --enable/disable-random
342
343 NOTE: Object files are built at the place where configure is launched.
344 EOF
345   exit 0
346 }
347
348 quotes='""'
349
350 log(){
351     echo "$@" >> $logfile
352 }
353
354 log_file(){
355     log BEGIN $1
356     pr -n -t $1 >> $logfile
357     log END $1
358 }
359
360 echolog(){
361     log "$@"
362     echo "$@"
363 }
364
365 warn(){
366     log "WARNING: $*"
367     WARNINGS="${WARNINGS}WARNING: $*\n"
368 }
369
370 die(){
371     echolog "$@"
372     cat <<EOF
373
374 If you think configure made a mistake, make sure you are using the latest
375 version from Git.  If the latest version fails, report the problem to the
376 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
377 EOF
378     if disabled logging; then
379         cat <<EOF
380 Rerun configure with logging enabled (do not use --disable-logging), and
381 include the log this produces with your report.
382 EOF
383     else
384         cat <<EOF
385 Include the log file "$logfile" produced by configure as this will help
386 solving the problem.
387 EOF
388     fi
389     exit 1
390 }
391
392 # Avoid locale weirdness, besides we really just want to translate ASCII.
393 toupper(){
394     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
395 }
396
397 tolower(){
398     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
399 }
400
401 c_escape(){
402     echo "$*" | sed 's/["\\]/\\\0/g'
403 }
404
405 sh_quote(){
406     v=$(echo "$1" | sed "s/'/'\\\\''/g")
407     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
408     echo "$v"
409 }
410
411 cleanws(){
412     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
413 }
414
415 filter(){
416     pat=$1
417     shift
418     for v; do
419         eval "case $v in $pat) echo $v ;; esac"
420     done
421 }
422
423 filter_out(){
424     pat=$1
425     shift
426     for v; do
427         eval "case $v in $pat) ;; *) echo $v ;; esac"
428     done
429 }
430
431 map(){
432     m=$1
433     shift
434     for v; do eval $m; done
435 }
436
437 add_suffix(){
438     suffix=$1
439     shift
440     for v; do echo ${v}${suffix}; done
441 }
442
443 set_all(){
444     value=$1
445     shift
446     for var in $*; do
447         eval $var=$value
448     done
449 }
450
451 set_weak(){
452     value=$1
453     shift
454     for var; do
455         eval : \${$var:=$value}
456     done
457 }
458
459 sanitize_var_name(){
460     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
461 }
462
463 set_safe(){
464     var=$1
465     shift
466     eval $(sanitize_var_name "$var")='$*'
467 }
468
469 get_safe(){
470     eval echo \$$(sanitize_var_name "$1")
471 }
472
473 pushvar(){
474     for var in $*; do
475         eval level=\${${var}_level:=0}
476         eval ${var}_${level}="\$$var"
477         eval ${var}_level=$(($level+1))
478     done
479 }
480
481 popvar(){
482     for var in $*; do
483         eval level=\${${var}_level:-0}
484         test $level = 0 && continue
485         eval level=$(($level-1))
486         eval $var="\${${var}_${level}}"
487         eval ${var}_level=$level
488         eval unset ${var}_${level}
489     done
490 }
491
492 enable(){
493     set_all yes $*
494 }
495
496 disable(){
497     set_all no $*
498 }
499
500 enable_weak(){
501     set_weak yes $*
502 }
503
504 disable_weak(){
505     set_weak no $*
506 }
507
508 enable_safe(){
509     for var; do
510         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
511     done
512 }
513
514 disable_safe(){
515     for var; do
516         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517     done
518 }
519
520 do_enable_deep(){
521     for var; do
522         enabled $var && continue
523         eval sel="\$${var}_select"
524         eval sgs="\$${var}_suggest"
525         pushvar var sgs
526         enable_deep $sel
527         popvar sgs
528         enable_deep_weak $sgs
529         popvar var
530     done
531 }
532
533 enable_deep(){
534     do_enable_deep $*
535     enable $*
536 }
537
538 enable_deep_weak(){
539     do_enable_deep $*
540     enable_weak $*
541 }
542
543 enabled(){
544     test "${1#!}" = "$1" && op== || op=!=
545     eval test "x\$${1#!}" $op "xyes"
546 }
547
548 disabled(){
549     test "${1#!}" = "$1" && op== || op=!=
550     eval test "x\$${1#!}" $op "xno"
551 }
552
553 enabled_all(){
554     for opt; do
555         enabled $opt || return 1
556     done
557 }
558
559 disabled_all(){
560     for opt; do
561         disabled $opt || return 1
562     done
563 }
564
565 enabled_any(){
566     for opt; do
567         enabled $opt && return 0
568     done
569 }
570
571 disabled_any(){
572     for opt; do
573         disabled $opt && return 0
574     done
575     return 1
576 }
577
578 set_default(){
579     for opt; do
580         eval : \${$opt:=\$${opt}_default}
581     done
582 }
583
584 is_in(){
585     value=$1
586     shift
587     for var in $*; do
588         [ $var = $value ] && return 0
589     done
590     return 1
591 }
592
593 do_check_deps(){
594     for cfg; do
595         cfg="${cfg#!}"
596         enabled ${cfg}_checking && die "Circular dependency for $cfg."
597         disabled ${cfg}_checking && continue
598         enable ${cfg}_checking
599         append allopts $cfg
600
601         eval dep_all="\$${cfg}_deps"
602         eval dep_any="\$${cfg}_deps_any"
603         eval dep_sel="\$${cfg}_select"
604         eval dep_sgs="\$${cfg}_suggest"
605         eval dep_ifa="\$${cfg}_if"
606         eval dep_ifn="\$${cfg}_if_any"
607
608         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
609         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
610         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
611
612         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
613         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
614         enabled_all  $dep_all || disable $cfg
615         enabled_any  $dep_any || disable $cfg
616         disabled_any $dep_sel && disable $cfg
617
618         if enabled $cfg; then
619             enable_deep $dep_sel
620             enable_deep_weak $dep_sgs
621         fi
622
623         disable ${cfg}_checking
624     done
625 }
626
627 check_deps(){
628     unset allopts
629
630     do_check_deps "$@"
631
632     for cfg in $allopts; do
633         enabled $cfg || continue
634         eval dep_extralibs="\$${cfg}_extralibs"
635         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
636     done
637 }
638
639 print_config(){
640     pfx=$1
641     files=$2
642     shift 2
643     map 'eval echo "$v \${$v:-no}"' "$@" |
644     awk "BEGIN { split(\"$files\", files) }
645         {
646             c = \"$pfx\" toupper(\$1);
647             v = \$2;
648             sub(/yes/, 1, v);
649             sub(/no/,  0, v);
650             for (f in files) {
651                 file = files[f];
652                 if (file ~ /\\.h\$/) {
653                     printf(\"#define %s %d\\n\", c, v) >>file;
654                 } else if (file ~ /\\.asm\$/) {
655                     printf(\"%%define %s %d\\n\", c, v) >>file;
656                 } else if (file ~ /\\.mak\$/) {
657                     n = -v ? \"\" : \"!\";
658                     printf(\"%s%s=yes\\n\", n, c) >>file;
659                 }
660             }
661         }"
662 }
663
664 print_enabled(){
665     suf=$1
666     shift
667     for v; do
668         enabled $v && printf "%s\n" ${v%$suf};
669     done
670 }
671
672 append(){
673     var=$1
674     shift
675     eval "$var=\"\$$var $*\""
676 }
677
678 prepend(){
679     var=$1
680     shift
681     eval "$var=\"$* \$$var\""
682 }
683
684 add_cppflags(){
685     append CPPFLAGS "$@"
686 }
687
688 add_cflags(){
689     append CFLAGS $($cflags_filter "$@")
690 }
691
692 add_cxxflags(){
693     append CXXFLAGS $($cflags_filter "$@")
694 }
695
696 add_asflags(){
697     append ASFLAGS $($asflags_filter "$@")
698 }
699
700 add_ldflags(){
701     append LDFLAGS $($ldflags_filter "$@")
702 }
703
704 add_extralibs(){
705     prepend extralibs $($ldflags_filter "$@")
706 }
707
708 add_host_cppflags(){
709     append host_cppflags "$@"
710 }
711
712 add_host_cflags(){
713     append host_cflags $($host_cflags_filter "$@")
714 }
715
716 add_host_ldflags(){
717     append host_ldflags $($host_ldflags_filter "$@")
718 }
719
720 add_compat(){
721     append compat_objs $1
722     shift
723     map 'add_cppflags -D$v' "$@"
724 }
725
726 check_cmd(){
727     log "$@"
728     "$@" >> $logfile 2>&1
729 }
730
731 cc_o(){
732     eval printf '%s\\n' $CC_O
733 }
734
735 cc_e(){
736     eval printf '%s\\n' $CC_E
737 }
738
739 check_cc(){
740     log check_cc "$@"
741     cat > $TMPC
742     log_file $TMPC
743     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
744 }
745
746 check_cxx(){
747     log check_cxx "$@"
748     cat > $TMPCPP
749     log_file $TMPCPP
750     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
751 }
752
753 check_cpp(){
754     log check_cpp "$@"
755     cat > $TMPC
756     log_file $TMPC
757     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
758 }
759
760 as_o(){
761     eval printf '%s\\n' $AS_O
762 }
763
764 check_as(){
765     log check_as "$@"
766     cat > $TMPS
767     log_file $TMPS
768     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
769 }
770
771 check_inline_asm(){
772     log check_inline_asm "$@"
773     name="$1"
774     code="$2"
775     shift 2
776     disable $name
777     check_cc "$@" <<EOF && enable $name
778 void foo(void){ __asm__ volatile($code); }
779 EOF
780 }
781
782 check_insn(){
783     log check_insn "$@"
784     check_inline_asm ${1}_inline "\"$2\""
785     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
786 }
787
788 check_yasm(){
789     log check_yasm "$@"
790     echo "$1" > $TMPS
791     log_file $TMPS
792     shift 1
793     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
794 }
795
796 ld_o(){
797     eval printf '%s\\n' $LD_O
798 }
799
800 check_ld(){
801     log check_ld "$@"
802     type=$1
803     shift 1
804     flags=$(filter_out '-l*|*.so' $@)
805     libs=$(filter '-l*|*.so' $@)
806     check_$type $($cflags_filter $flags) || return
807     flags=$($ldflags_filter $flags)
808     libs=$($ldflags_filter $libs)
809     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
810 }
811
812 check_code(){
813     log check_code "$@"
814     check=$1
815     headers=$2
816     code=$3
817     shift 3
818     {
819         for hdr in $headers; do
820             echo "#include <$hdr>"
821         done
822         echo "int main(void) { $code; return 0; }"
823     } | check_$check "$@"
824 }
825
826 check_cppflags(){
827     log check_cppflags "$@"
828     check_cc "$@" <<EOF && append CPPFLAGS "$@"
829 int x;
830 EOF
831 }
832
833 check_cflags(){
834     log check_cflags "$@"
835     set -- $($cflags_filter "$@")
836     check_cc "$@" <<EOF && append CFLAGS "$@"
837 int x;
838 EOF
839 }
840
841 check_cxxflags(){
842     log check_cxxflags "$@"
843     set -- $($cflags_filter "$@")
844     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
845 int x;
846 EOF
847 }
848
849 test_ldflags(){
850     log test_ldflags "$@"
851     check_ld "cc" "$@" <<EOF
852 int main(void){ return 0; }
853 EOF
854 }
855
856 check_ldflags(){
857     log check_ldflags "$@"
858     test_ldflags "$@" && add_ldflags "$@"
859 }
860
861 check_header(){
862     log check_header "$@"
863     header=$1
864     shift
865     disable_safe $header
866     check_cpp "$@" <<EOF && enable_safe $header
867 #include <$header>
868 int x;
869 EOF
870 }
871
872 check_func(){
873     log check_func "$@"
874     func=$1
875     shift
876     disable $func
877     check_ld "cc" "$@" <<EOF && enable $func
878 extern int $func();
879 int main(void){ $func(); }
880 EOF
881 }
882
883 check_mathfunc(){
884     log check_mathfunc "$@"
885     func=$1
886     narg=$2
887     shift 2
888     test $narg = 2 && args="f, g" || args="f"
889     disable $func
890     check_ld "cc" "$@" <<EOF && enable $func
891 #include <math.h>
892 float foo(float f, float g) { return $func($args); }
893 int main(void){ return (int) foo; }
894 EOF
895 }
896
897 check_func_headers(){
898     log check_func_headers "$@"
899     headers=$1
900     funcs=$2
901     shift 2
902     {
903         for hdr in $headers; do
904             echo "#include <$hdr>"
905         done
906         for func in $funcs; do
907             echo "long check_$func(void) { return (long) $func; }"
908         done
909         echo "int main(void) { return 0; }"
910     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
911 }
912
913 check_class_headers_cpp(){
914     log check_class_headers_cpp "$@"
915     headers=$1
916     classes=$2
917     shift 2
918     {
919         for hdr in $headers; do
920             echo "#include <$hdr>"
921         done
922         echo "int main(void) { "
923         i=1
924         for class in $classes; do
925             echo "$class obj$i;"
926             i=$(expr $i + 1)
927         done
928         echo "return 0; }"
929     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
930 }
931
932 check_cpp_condition(){
933     log check_cpp_condition "$@"
934     header=$1
935     condition=$2
936     shift 2
937     check_cpp "$@" <<EOF
938 #include <$header>
939 #if !($condition)
940 #error "unsatisfied condition: $condition"
941 #endif
942 EOF
943 }
944
945 check_lib(){
946     log check_lib "$@"
947     header="$1"
948     func="$2"
949     shift 2
950     check_header $header && check_func $func "$@" && add_extralibs "$@"
951 }
952
953 check_lib2(){
954     log check_lib2 "$@"
955     headers="$1"
956     funcs="$2"
957     shift 2
958     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
959 }
960
961 check_lib_cpp(){
962     log check_lib_cpp "$@"
963     headers="$1"
964     classes="$2"
965     shift 2
966     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
967 }
968
969 check_pkg_config(){
970     log check_pkg_config "$@"
971     pkg="$1"
972     headers="$2"
973     funcs="$3"
974     shift 3
975     $pkg_config --exists $pkg 2>/dev/null || return
976     pkg_cflags=$($pkg_config --cflags $pkg)
977     pkg_libs=$($pkg_config --libs $pkg)
978     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
979         set_safe ${pkg}_cflags $pkg_cflags   &&
980         set_safe ${pkg}_libs   $pkg_libs
981 }
982
983 check_exec(){
984     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
985 }
986
987 check_exec_crash(){
988     code=$(cat)
989
990     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
991     # are safe but may not be available everywhere.  Thus we use
992     # raise(SIGTERM) instead.  The check is run in a subshell so we
993     # can redirect the "Terminated" message from the shell.  SIGBUS
994     # is not defined by standard C so it is used conditionally.
995
996     (check_exec "$@") >> $logfile 2>&1 <<EOF
997 #include <signal.h>
998 static void sighandler(int sig){
999     raise(SIGTERM);
1000 }
1001 int func(void){
1002     $code
1003 }
1004 int (*func_ptr)(void) = func;
1005 int main(void){
1006     signal(SIGILL, sighandler);
1007     signal(SIGFPE, sighandler);
1008     signal(SIGSEGV, sighandler);
1009 #ifdef SIGBUS
1010     signal(SIGBUS, sighandler);
1011 #endif
1012     return func_ptr();
1013 }
1014 EOF
1015 }
1016
1017 check_type(){
1018     log check_type "$@"
1019     headers=$1
1020     type=$2
1021     shift 2
1022     disable_safe "$type"
1023     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1024 }
1025
1026 check_struct(){
1027     log check_struct "$@"
1028     headers=$1
1029     struct=$2
1030     member=$3
1031     shift 3
1032     disable_safe "${struct}_${member}"
1033     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1034         enable_safe "${struct}_${member}"
1035 }
1036
1037 check_builtin(){
1038     log check_builtin "$@"
1039     name=$1
1040     headers=$2
1041     builtin=$3
1042     shift 3
1043     disable "$name"
1044     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1045 }
1046
1047 require(){
1048     name="$1"
1049     header="$2"
1050     func="$3"
1051     shift 3
1052     check_lib $header $func "$@" || die "ERROR: $name not found"
1053 }
1054
1055 require2(){
1056     name="$1"
1057     headers="$2"
1058     func="$3"
1059     shift 3
1060     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1061 }
1062
1063 require_cpp(){
1064     name="$1"
1065     headers="$2"
1066     classes="$3"
1067     shift 3
1068     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1069 }
1070
1071 require_pkg_config(){
1072     pkg="$1"
1073     check_pkg_config "$@" || die "ERROR: $pkg not found"
1074     add_cflags    $(get_safe ${pkg}_cflags)
1075     add_extralibs $(get_safe ${pkg}_libs)
1076 }
1077
1078 hostcc_o(){
1079     eval printf '%s\\n' $HOSTCC_O
1080 }
1081
1082 check_host_cc(){
1083     log check_host_cc "$@"
1084     cat > $TMPC
1085     log_file $TMPC
1086     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1087 }
1088
1089 check_host_cppflags(){
1090     log check_host_cppflags "$@"
1091     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1092 int x;
1093 EOF
1094 }
1095
1096 check_host_cflags(){
1097     log check_host_cflags "$@"
1098     set -- $($host_cflags_filter "$@")
1099     check_host_cc "$@" <<EOF && append host_cflags "$@"
1100 int x;
1101 EOF
1102 }
1103
1104 apply(){
1105     file=$1
1106     shift
1107     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1108 }
1109
1110 cp_if_changed(){
1111     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1112     mkdir -p "$(dirname $2)"
1113     $cp_f "$1" "$2"
1114 }
1115
1116 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1117 # system-dependent things.
1118
1119 COMPONENT_LIST="
1120     bsfs
1121     decoders
1122     demuxers
1123     encoders
1124     filters
1125     hwaccels
1126     indevs
1127     muxers
1128     outdevs
1129     parsers
1130     protocols
1131 "
1132
1133 EXTERNAL_LIBRARY_LIST="
1134     avisynth
1135     bzlib
1136     crystalhd
1137     fontconfig
1138     frei0r
1139     gnutls
1140     iconv
1141     libaacplus
1142     libass
1143     libbluray
1144     libcaca
1145     libcdio
1146     libcelt
1147     libdc1394
1148     libfaac
1149     libfdk_aac
1150     libflite
1151     libfreetype
1152     libgsm
1153     libiec61883
1154     libilbc
1155     libmodplug
1156     libmp3lame
1157     libnut
1158     libopencore_amrnb
1159     libopencore_amrwb
1160     libopencv
1161     libopenjpeg
1162     libopus
1163     libpulse
1164     librtmp
1165     libschroedinger
1166     libsoxr
1167     libspeex
1168     libstagefright_h264
1169     libtheora
1170     libtwolame
1171     libutvideo
1172     libv4l2
1173     libvo_aacenc
1174     libvo_amrwbenc
1175     libvorbis
1176     libvpx
1177     libx264
1178     libxavs
1179     libxvid
1180     openal
1181     openssl
1182     x11grab
1183     zlib
1184 "
1185
1186 DOCUMENT_LIST="
1187     doc
1188     htmlpages
1189     manpages
1190     podpages
1191     txtpages
1192 "
1193
1194 HWACCEL_LIST="
1195     dxva2
1196     vaapi
1197     vda
1198     vdpau
1199 "
1200
1201 LIBRARY_LIST="
1202     avcodec
1203     avdevice
1204     avfilter
1205     avformat
1206     avresample
1207     avutil
1208     postproc
1209     swresample
1210     swscale
1211 "
1212
1213 PROGRAM_LIST="
1214     ffplay
1215     ffprobe
1216     ffserver
1217     ffmpeg
1218 "
1219
1220 CONFIG_LIST="
1221     $COMPONENT_LIST
1222     $DOCUMENT_LIST
1223     $EXTERNAL_LIBRARY_LIST
1224     $HWACCEL_LIST
1225     $LIBRARY_LIST
1226     $PROGRAM_LIST
1227     dct
1228     dwt
1229     fast_unaligned
1230     fft
1231     ftrapv
1232     gpl
1233     gray
1234     hardcoded_tables
1235     incompatible_fork_abi
1236     lsp
1237     lzo
1238     mdct
1239     memalign_hack
1240     memory_poisoning
1241     network
1242     nonfree
1243     pic
1244     rdft
1245     runtime_cpudetect
1246     safe_bitstream_reader
1247     shared
1248     small
1249     sram
1250     static
1251     swscale_alpha
1252     thumb
1253     version3
1254     xmm_clobber_test
1255 "
1256
1257 THREADS_LIST='
1258     pthreads
1259     w32threads
1260     os2threads
1261 '
1262
1263 ARCH_LIST='
1264     aarch64
1265     alpha
1266     arm
1267     avr32
1268     avr32_ap
1269     avr32_uc
1270     bfin
1271     ia64
1272     m68k
1273     mips
1274     mips64
1275     parisc
1276     ppc
1277     ppc64
1278     s390
1279     sh4
1280     sparc
1281     sparc64
1282     tilegx
1283     tilepro
1284     tomi
1285     x86
1286     x86_32
1287     x86_64
1288 '
1289
1290 ARCH_EXT_LIST_ARM='
1291     armv5te
1292     armv6
1293     armv6t2
1294     neon
1295     vfp
1296     vfpv3
1297 '
1298
1299 ARCH_EXT_LIST_X86='
1300     amd3dnow
1301     amd3dnowext
1302     avx
1303     fma4
1304     mmx
1305     mmxext
1306     sse
1307     sse2
1308     sse3
1309     sse4
1310     sse42
1311     ssse3
1312 '
1313
1314 ARCH_EXT_LIST="
1315     $ARCH_EXT_LIST_ARM
1316     $ARCH_EXT_LIST_X86
1317     altivec
1318     ppc4xx
1319     vis
1320     mipsfpu
1321     mips32r2
1322     mipsdspr1
1323     mipsdspr2
1324 "
1325
1326 HAVE_LIST_CMDLINE='
1327     inline_asm
1328     symver
1329     yasm
1330 '
1331
1332 HAVE_LIST_PUB='
1333     bigendian
1334     fast_unaligned
1335     incompatible_fork_abi
1336 '
1337
1338 MATH_FUNCS="
1339     atanf
1340     atan2f
1341     cbrt
1342     cbrtf
1343     cosf
1344     exp2
1345     exp2f
1346     expf
1347     isinf
1348     isnan
1349     ldexpf
1350     llrint
1351     llrintf
1352     log2
1353     log2f
1354     log10f
1355     lrint
1356     lrintf
1357     powf
1358     rint
1359     round
1360     roundf
1361     sinf
1362     trunc
1363     truncf
1364 "
1365
1366 HAVE_LIST="
1367     $ARCH_EXT_LIST
1368     $(add_suffix _external $ARCH_EXT_LIST)
1369     $(add_suffix _inline   $ARCH_EXT_LIST)
1370     $HAVE_LIST_CMDLINE
1371     $HAVE_LIST_PUB
1372     $THREADS_LIST
1373     $MATH_FUNCS
1374     access
1375     aligned_malloc
1376     aligned_stack
1377     alsa_asoundlib_h
1378     altivec_h
1379     arpa_inet_h
1380     asm_mod_q
1381     asm_mod_y
1382     asm_types_h
1383     attribute_may_alias
1384     attribute_packed
1385     cdio_paranoia_h
1386     cdio_paranoia_paranoia_h
1387     clock_gettime
1388     closesocket
1389     cmov
1390     CommandLineToArgvW
1391     cpunop
1392     CryptGenRandom
1393     dcbzl
1394     dev_bktr_ioctl_bt848_h
1395     dev_bktr_ioctl_meteor_h
1396     dev_ic_bt8xx_h
1397     dev_video_bktr_ioctl_bt848_h
1398     dev_video_meteor_ioctl_meteor_h
1399     direct_h
1400     dlfcn_h
1401     dlopen
1402     dos_paths
1403     dxva_h
1404     ebp_available
1405     ebx_available
1406     fast_64bit
1407     fast_clz
1408     fast_cmov
1409     fcntl
1410     fork
1411     getaddrinfo
1412     gethrtime
1413     getopt
1414     GetProcessAffinityMask
1415     GetProcessMemoryInfo
1416     GetProcessTimes
1417     GetSystemTimeAsFileTime
1418     getrusage
1419     getservbyport
1420     gettimeofday
1421     glob
1422     gnu_as
1423     gsm_h
1424     ibm_asm
1425     inet_aton
1426     io_h
1427     isatty
1428     jack_port_get_latency_range
1429     kbhit
1430     ldbrx
1431     libdc1394_1
1432     libdc1394_2
1433     local_aligned_16
1434     local_aligned_8
1435     localtime_r
1436     loongson
1437     lzo1x_999_compress
1438     machine_ioctl_bt848_h
1439     machine_ioctl_meteor_h
1440     makeinfo
1441     malloc_h
1442     MapViewOfFile
1443     memalign
1444     mkstemp
1445     mm_empty
1446     mmap
1447     mprotect
1448     msvcrt
1449     nanosleep
1450     openjpeg_1_5_openjpeg_h
1451     PeekNamedPipe
1452     perl
1453     pod2man
1454     poll_h
1455     posix_memalign
1456     pthread_cancel
1457     rdtsc
1458     rsync_contimeout
1459     sched_getaffinity
1460     sdl
1461     sdl_video_size
1462     SetConsoleTextAttribute
1463     setmode
1464     setrlimit
1465     Sleep
1466     sndio_h
1467     socklen_t
1468     soundcard_h
1469     strerror_r
1470     struct_addrinfo
1471     struct_group_source_req
1472     struct_ip_mreq_source
1473     struct_ipv6_mreq
1474     struct_pollfd
1475     struct_rusage_ru_maxrss
1476     struct_sctp_event_subscribe
1477     struct_sockaddr_in6
1478     struct_sockaddr_sa_len
1479     struct_sockaddr_storage
1480     struct_v4l2_frmivalenum_discrete
1481     symver_asm_label
1482     symver_gnu_asm
1483     sysconf
1484     sysctl
1485     sys_mman_h
1486     sys_param_h
1487     sys_resource_h
1488     sys_select_h
1489     sys_soundcard_h
1490     sys_time_h
1491     sys_videoio_h
1492     termios_h
1493     texi2html
1494     threads
1495     unistd_h
1496     usleep
1497     vfp_args
1498     VirtualAlloc
1499     windows_h
1500     winsock2_h
1501     xform_asm
1502     xmm_clobbers
1503 "
1504
1505 # options emitted with CONFIG_ prefix but not available on the command line
1506 CONFIG_EXTRA="
1507     aandcttables
1508     ac3dsp
1509     audio_frame_queue
1510     error_resilience
1511     gcrypt
1512     golomb
1513     gplv3
1514     h264chroma
1515     h264dsp
1516     h264pred
1517     h264qpel
1518     huffman
1519     lgplv3
1520     lpc
1521     mpegaudio
1522     mpegaudiodsp
1523     mpegvideo
1524     mpegvideoenc
1525     nettle
1526     rangecoder
1527     rtpdec
1528     rtpenc_chain
1529     sinewin
1530     videodsp
1531     vp3dsp
1532 "
1533
1534 CMDLINE_SELECT="
1535     $ARCH_EXT_LIST
1536     $CONFIG_LIST
1537     $HAVE_LIST_CMDLINE
1538     $THREADS_LIST
1539     asm
1540     coverage
1541     cross_compile
1542     debug
1543     extra_warnings
1544     logging
1545     lto
1546     optimizations
1547     stripping
1548 "
1549
1550 PATHS_LIST='
1551     bindir
1552     datadir
1553     incdir
1554     libdir
1555     mandir
1556     prefix
1557     shlibdir
1558 '
1559
1560 CMDLINE_SET="
1561     $PATHS_LIST
1562     ar
1563     arch
1564     as
1565     assert_level
1566     build_suffix
1567     cc
1568     cpu
1569     cross_prefix
1570     cxx
1571     dep_cc
1572     extra_version
1573     host_cc
1574     host_cflags
1575     host_ld
1576     host_ldflags
1577     host_libs
1578     host_os
1579     install
1580     ld
1581     logfile
1582     malloc_prefix
1583     nm
1584     optflags
1585     pkg_config
1586     progs_suffix
1587     random_seed
1588     samples
1589     strip
1590     sysinclude
1591     sysroot
1592     target_exec
1593     target_os
1594     target_path
1595     toolchain
1596     valgrind
1597     yasmexe
1598 "
1599
1600 CMDLINE_APPEND="
1601     extra_cflags
1602     extra_cxxflags
1603     host_cppflags
1604 "
1605
1606 # code dependency declarations
1607
1608 # architecture extensions
1609
1610 armv5te_deps="arm"
1611 armv6_deps="arm"
1612 armv6t2_deps="arm"
1613 neon_deps="arm"
1614 vfp_deps="arm"
1615 vfpv3_deps="vfp"
1616
1617 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1618
1619 mipsfpu_deps="mips"
1620 mips32r2_deps="mips"
1621 mipsdspr1_deps="mips"
1622 mipsdspr2_deps="mips"
1623
1624 altivec_deps="ppc"
1625 ppc4xx_deps="ppc"
1626
1627 vis_deps="sparc"
1628
1629 x86_64_suggest="cmov fast_cmov"
1630
1631 amd3dnow_deps="mmx"
1632 amd3dnowext_deps="amd3dnow"
1633 mmx_deps="x86"
1634 mmxext_deps="mmx"
1635 sse_deps="mmxext"
1636 sse2_deps="sse"
1637 sse3_deps="sse2"
1638 ssse3_deps="sse3"
1639 sse4_deps="ssse3"
1640 sse42_deps="sse4"
1641 avx_deps="sse42"
1642 fma4_deps="avx"
1643
1644 mmx_external_deps="yasm"
1645 mmx_inline_deps="inline_asm"
1646 mmx_suggest="mmx_external mmx_inline"
1647
1648 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1649     eval dep=\$${ext}_deps
1650     eval ${ext}_external_deps='"${dep}_external"'
1651     eval ${ext}_inline_deps='"${dep}_inline"'
1652     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1653 done
1654
1655 aligned_stack_if_any="ppc x86"
1656 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1657 fast_clz_if_any="alpha avr32 mips ppc x86"
1658 fast_unaligned_if_any="ppc x86"
1659
1660 inline_asm_deps="!tms470"
1661 need_memalign="altivec neon sse"
1662
1663 symver_if_any="symver_asm_label symver_gnu_asm"
1664
1665 log2_deps="!msvcrt"
1666
1667 # subsystems
1668 dct_select="rdft"
1669 mdct_select="fft"
1670 rdft_select="fft"
1671 mpegaudio_select="mpegaudiodsp"
1672 mpegaudiodsp_select="dct"
1673 mpegvideo_select="error_resilience videodsp h264chroma"
1674 mpegvideoenc_select="mpegvideo"
1675
1676 # decoders / encoders
1677 aac_decoder_select="mdct sinewin"
1678 aac_encoder_select="audio_frame_queue mdct sinewin"
1679 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1680 ac3_decoder_select="mdct ac3dsp ac3_parser"
1681 ac3_encoder_select="mdct ac3dsp"
1682 ac3_fixed_encoder_select="mdct ac3dsp"
1683 alac_encoder_select="lpc"
1684 amrnb_decoder_select="lsp"
1685 amrwb_decoder_select="lsp"
1686 amv_encoder_select="aandcttables"
1687 atrac1_decoder_select="mdct sinewin"
1688 atrac3_decoder_select="mdct"
1689 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1690 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1691 cavs_decoder_select="golomb h264chroma mpegvideo"
1692 comfortnoise_encoder_select="lpc"
1693 cook_decoder_select="mdct sinewin"
1694 cscd_decoder_select="lzo"
1695 cscd_decoder_suggest="zlib"
1696 dca_decoder_select="mdct"
1697 dirac_decoder_select="dwt golomb videodsp"
1698 dnxhd_encoder_select="aandcttables mpegvideoenc"
1699 dxa_decoder_select="zlib"
1700 eac3_decoder_select="ac3_decoder"
1701 eac3_encoder_select="ac3_encoder"
1702 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1703 eatgq_decoder_select="aandcttables"
1704 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1705 exr_decoder_select="zlib"
1706 ffv1_decoder_select="golomb rangecoder"
1707 ffv1_encoder_select="rangecoder"
1708 ffvhuff_encoder_select="huffman"
1709 flac_decoder_select="golomb"
1710 flac_encoder_select="golomb lpc"
1711 flashsv_decoder_select="zlib"
1712 flashsv_encoder_select="zlib"
1713 flashsv2_encoder_select="zlib"
1714 flashsv2_decoder_select="zlib"
1715 flv_decoder_select="h263_decoder"
1716 flv_encoder_select="h263_encoder"
1717 fraps_decoder_select="huffman"
1718 h261_decoder_select="error_resilience mpegvideo"
1719 h261_encoder_select="aandcttables mpegvideoenc"
1720 h263_decoder_select="error_resilience h263_parser mpegvideo"
1721 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1722 h263i_decoder_select="h263_decoder"
1723 h263p_encoder_select="h263_encoder"
1724 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1725 huffyuv_encoder_select="huffman"
1726 iac_decoder_select="fft mdct sinewin"
1727 imc_decoder_select="fft mdct sinewin"
1728 jpegls_decoder_select="golomb"
1729 jpegls_encoder_select="golomb"
1730 ljpeg_encoder_select="aandcttables mpegvideoenc"
1731 loco_decoder_select="golomb"
1732 mdec_decoder_select="error_resilience mpegvideo"
1733 mjpeg_encoder_select="aandcttables mpegvideoenc"
1734 mlp_decoder_select="mlp_parser"
1735 mp1_decoder_select="mpegaudio"
1736 mp1float_decoder_select="mpegaudio"
1737 mp2_decoder_select="mpegaudio"
1738 mp2float_decoder_select="mpegaudio"
1739 mp3_decoder_select="mpegaudio"
1740 mp3adu_decoder_select="mpegaudio"
1741 mp3adufloat_decoder_select="mpegaudio"
1742 mp3float_decoder_select="mpegaudio"
1743 mp3on4_decoder_select="mpegaudio"
1744 mp3on4float_decoder_select="mpegaudio"
1745 mpc7_decoder_select="mpegaudiodsp"
1746 mpc8_decoder_select="mpegaudiodsp"
1747 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1748 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1749 mpeg1video_decoder_select="error_resilience mpegvideo"
1750 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1751 mpeg2video_decoder_select="error_resilience mpegvideo"
1752 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1753 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1754 mpeg4_encoder_select="h263_encoder"
1755 msmpeg4v1_decoder_select="h263_decoder"
1756 msmpeg4v1_encoder_select="h263_encoder"
1757 msmpeg4v2_decoder_select="h263_decoder"
1758 msmpeg4v2_encoder_select="h263_encoder"
1759 msmpeg4v3_decoder_select="h263_decoder"
1760 msmpeg4v3_encoder_select="h263_encoder"
1761 mss2_decoder_select="vc1_decoder"
1762 nellymoser_decoder_select="mdct sinewin"
1763 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1764 nuv_decoder_select="lzo"
1765 png_decoder_select="zlib"
1766 png_encoder_select="zlib"
1767 qcelp_decoder_select="lsp"
1768 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1769 ra_144_encoder_select="audio_frame_queue lpc"
1770 ralf_decoder_select="golomb"
1771 rv10_decoder_select="h263_decoder"
1772 rv10_encoder_select="h263_encoder"
1773 rv20_decoder_select="h263_decoder"
1774 rv20_encoder_select="h263_encoder"
1775 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1776 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1777 shorten_decoder_select="golomb"
1778 sipr_decoder_select="lsp"
1779 snow_decoder_select="dwt h264qpel rangecoder"
1780 snow_encoder_select="aandcttables dwt h264qpel error_resilience mpegvideoenc rangecoder"
1781 sonic_decoder_select="golomb"
1782 sonic_encoder_select="golomb"
1783 sonic_ls_encoder_select="golomb"
1784 svq1_decoder_select="error_resilience mpegvideo"
1785 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1786 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1787 svq3_decoder_suggest="zlib"
1788 theora_decoder_select="vp3_decoder"
1789 tiff_decoder_suggest="zlib"
1790 tiff_encoder_suggest="zlib"
1791 truehd_decoder_select="mlp_parser"
1792 tscc_decoder_select="zlib"
1793 twinvq_decoder_select="mdct lsp sinewin"
1794 utvideo_encoder_select="huffman"
1795 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1796 vc1image_decoder_select="vc1_decoder"
1797 vorbis_decoder_select="mdct"
1798 vorbis_encoder_select="mdct"
1799 vp3_decoder_select="vp3dsp videodsp"
1800 vp5_decoder_select="h264chroma vp3dsp videodsp"
1801 vp6_decoder_select="h264chroma huffman vp3dsp videodsp"
1802 vp6a_decoder_select="vp6_decoder"
1803 vp6f_decoder_select="vp6_decoder"
1804 vp8_decoder_select="h264pred videodsp"
1805 wmapro_decoder_select="mdct sinewin"
1806 wmav1_decoder_select="mdct sinewin"
1807 wmav1_encoder_select="mdct sinewin"
1808 wmav2_decoder_select="mdct sinewin"
1809 wmav2_encoder_select="mdct sinewin"
1810 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1811 wmv1_decoder_select="h263_decoder"
1812 wmv1_encoder_select="h263_encoder"
1813 wmv2_decoder_select="h263_decoder"
1814 wmv2_encoder_select="h263_encoder"
1815 wmv3_decoder_select="vc1_decoder"
1816 wmv3image_decoder_select="wmv3_decoder"
1817 zerocodec_decoder_select="zlib"
1818 zlib_decoder_select="zlib"
1819 zlib_encoder_select="zlib"
1820 zmbv_decoder_select="zlib"
1821 zmbv_encoder_select="zlib"
1822
1823 # hardware accelerators
1824 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1825 dxva2_deps="dxva2api_h"
1826 vaapi_deps="va_va_h"
1827 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1828 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1829 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1830
1831 h263_vaapi_hwaccel_deps="vaapi"
1832 h263_vaapi_hwaccel_select="h263_decoder"
1833 h263_vdpau_hwaccel_deps="vdpau"
1834 h263_vdpau_hwaccel_select="h263_decoder"
1835 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1836 h264_dxva2_hwaccel_deps="dxva2"
1837 h264_dxva2_hwaccel_select="h264_decoder"
1838 h264_vaapi_hwaccel_deps="vaapi"
1839 h264_vaapi_hwaccel_select="h264_decoder"
1840 h264_vda_decoder_deps="vda"
1841 h264_vda_decoder_select="h264_decoder"
1842 h264_vda_hwaccel_deps="vda"
1843 h264_vda_hwaccel_select="h264_decoder"
1844 h264_vdpau_decoder_deps="vdpau"
1845 h264_vdpau_decoder_select="h264_decoder"
1846 h264_vdpau_hwaccel_deps="vdpau"
1847 h264_vdpau_hwaccel_select="h264_decoder"
1848 mpeg_vdpau_decoder_deps="vdpau"
1849 mpeg_vdpau_decoder_select="mpegvideo_decoder"
1850 mpeg1_vdpau_decoder_deps="vdpau"
1851 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1852 mpeg1_vdpau_hwaccel_deps="vdpau"
1853 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1854 mpeg2_crystalhd_decoder_select="crystalhd"
1855 mpeg2_dxva2_hwaccel_deps="dxva2"
1856 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1857 mpeg2_vaapi_hwaccel_deps="vaapi"
1858 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1859 mpeg2_vdpau_hwaccel_deps="vdpau"
1860 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1861 mpeg4_crystalhd_decoder_select="crystalhd"
1862 mpeg4_vaapi_hwaccel_deps="vaapi"
1863 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1864 mpeg4_vdpau_decoder_deps="vdpau"
1865 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1866 mpeg4_vdpau_hwaccel_deps="vdpau"
1867 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1868 msmpeg4_crystalhd_decoder_select="crystalhd"
1869 vc1_crystalhd_decoder_select="crystalhd"
1870 vc1_dxva2_hwaccel_deps="dxva2"
1871 vc1_dxva2_hwaccel_select="vc1_decoder"
1872 vc1_vaapi_hwaccel_deps="vaapi"
1873 vc1_vaapi_hwaccel_select="vc1_decoder"
1874 vc1_vdpau_decoder_deps="vdpau"
1875 vc1_vdpau_decoder_select="vc1_decoder"
1876 vc1_vdpau_hwaccel_deps="vdpau"
1877 vc1_vdpau_hwaccel_select="vc1_decoder"
1878 wmv3_crystalhd_decoder_select="crystalhd"
1879 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1880 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1881 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1882 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1883
1884 # parsers
1885 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1886 mpeg4video_parser_select="error_resilience mpegvideo"
1887 mpegvideo_parser_select="error_resilience mpegvideo"
1888 vc1_parser_select="error_resilience mpegvideo"
1889
1890 # external libraries
1891 libaacplus_encoder_deps="libaacplus"
1892 libcelt_decoder_deps="libcelt"
1893 libfaac_encoder_deps="libfaac"
1894 libfaac_encoder_select="audio_frame_queue"
1895 libfdk_aac_encoder_deps="libfdk_aac"
1896 libfdk_aac_encoder_select="audio_frame_queue"
1897 libgsm_decoder_deps="libgsm"
1898 libgsm_encoder_deps="libgsm"
1899 libgsm_ms_decoder_deps="libgsm"
1900 libgsm_ms_encoder_deps="libgsm"
1901 libilbc_decoder_deps="libilbc"
1902 libilbc_encoder_deps="libilbc"
1903 libmodplug_demuxer_deps="libmodplug"
1904 libmp3lame_encoder_deps="libmp3lame"
1905 libmp3lame_encoder_select="audio_frame_queue"
1906 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1907 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1908 libopencore_amrnb_encoder_select="audio_frame_queue"
1909 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1910 libopenjpeg_decoder_deps="libopenjpeg"
1911 libopenjpeg_encoder_deps="libopenjpeg"
1912 libopus_decoder_deps="libopus"
1913 libopus_encoder_deps="libopus"
1914 libopus_encoder_select="audio_frame_queue"
1915 libschroedinger_decoder_deps="libschroedinger"
1916 libschroedinger_encoder_deps="libschroedinger"
1917 libspeex_decoder_deps="libspeex"
1918 libspeex_encoder_deps="libspeex"
1919 libspeex_encoder_select="audio_frame_queue"
1920 libstagefright_h264_decoder_deps="libstagefright_h264"
1921 libtheora_encoder_deps="libtheora"
1922 libtwolame_encoder_deps="libtwolame"
1923 libvo_aacenc_encoder_deps="libvo_aacenc"
1924 libvo_aacenc_encoder_select="audio_frame_queue"
1925 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1926 libvorbis_decoder_deps="libvorbis"
1927 libvorbis_encoder_deps="libvorbis"
1928 libvorbis_encoder_select="audio_frame_queue"
1929 libvpx_vp8_decoder_deps="libvpx"
1930 libvpx_vp8_encoder_deps="libvpx"
1931 libvpx_vp9_decoder_deps="libvpx"
1932 libvpx_vp9_encoder_deps="libvpx"
1933 libx264_encoder_deps="libx264"
1934 libx264rgb_encoder_deps="libx264"
1935 libxavs_encoder_deps="libxavs"
1936 libxvid_encoder_deps="libxvid"
1937 libutvideo_decoder_deps="libutvideo"
1938 libutvideo_encoder_deps="libutvideo"
1939
1940 # demuxers / muxers
1941 ac3_demuxer_select="ac3_parser"
1942 asf_stream_muxer_select="asf_muxer"
1943 avisynth_demuxer_deps="avisynth"
1944 dirac_demuxer_select="dirac_parser"
1945 dts_demuxer_select="dca_parser"
1946 dtshd_demuxer_select="dca_parser"
1947 eac3_demuxer_select="ac3_parser"
1948 f4v_muxer_select="mov_muxer"
1949 flac_demuxer_select="flac_parser"
1950 ipod_muxer_select="mov_muxer"
1951 ismv_muxer_select="mov_muxer"
1952 libnut_demuxer_deps="libnut"
1953 libnut_muxer_deps="libnut"
1954 matroska_audio_muxer_select="matroska_muxer"
1955 matroska_demuxer_suggest="bzlib lzo zlib"
1956 mov_demuxer_suggest="zlib"
1957 mov_muxer_select="rtpenc_chain"
1958 mp3_demuxer_select="mpegaudio_parser"
1959 mp4_muxer_select="mov_muxer"
1960 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1961 mpegtsraw_demuxer_select="mpegts_demuxer"
1962 mxf_d10_muxer_select="mxf_muxer"
1963 ogg_demuxer_select="golomb"
1964 psp_muxer_select="mov_muxer"
1965 rtp_demuxer_select="sdp_demuxer"
1966 rtp_muxer_select="mpegvideo"
1967 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1968 rtsp_demuxer_select="http_protocol rtpdec"
1969 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1970 sap_demuxer_select="sdp_demuxer"
1971 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1972 sdp_demuxer_select="rtpdec"
1973 smoothstreaming_muxer_select="ismv_muxer"
1974 spdif_muxer_select="aac_parser"
1975 tak_demuxer_select="tak_parser"
1976 tg2_muxer_select="mov_muxer"
1977 tgp_muxer_select="mov_muxer"
1978 vobsub_demuxer_select="mpegps_demuxer"
1979 w64_demuxer_deps="wav_demuxer"
1980 w64_muxer_deps="wav_muxer"
1981
1982 # indevs / outdevs
1983 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1984 alsa_outdev_deps="alsa_asoundlib_h"
1985 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1986 caca_outdev_deps="libcaca"
1987 dshow_indev_deps="IBaseFilter"
1988 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1989 dv1394_indev_deps="dv1394 dv_demuxer"
1990 fbdev_indev_deps="linux_fb_h"
1991 iec61883_indev_deps="libiec61883"
1992 jack_indev_deps="jack_jack_h sem_timedwait"
1993 lavfi_indev_deps="avfilter"
1994 libcdio_indev_deps="libcdio"
1995 libdc1394_indev_deps="libdc1394"
1996 libv4l2_indev_deps="libv4l2"
1997 openal_indev_deps="openal"
1998 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1999 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2000 pulse_indev_deps="libpulse"
2001 sdl_outdev_deps="sdl"
2002 sndio_indev_deps="sndio_h"
2003 sndio_outdev_deps="sndio_h"
2004 v4l_indev_deps="linux_videodev_h"
2005 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2006 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2007 vfwcap_indev_extralibs="-lavicap32"
2008 x11grab_indev_deps="x11grab"
2009
2010 # protocols
2011 bluray_protocol_deps="libbluray"
2012 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2013 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2014 ffrtmpcrypt_protocol_select="tcp_protocol"
2015 ffrtmphttp_protocol_deps="!librtmp_protocol"
2016 ffrtmphttp_protocol_select="http_protocol"
2017 gopher_protocol_select="network"
2018 httpproxy_protocol_select="tcp_protocol"
2019 http_protocol_select="tcp_protocol"
2020 https_protocol_select="tls_protocol"
2021 librtmp_protocol_deps="librtmp"
2022 librtmpe_protocol_deps="librtmp"
2023 librtmps_protocol_deps="librtmp"
2024 librtmpt_protocol_deps="librtmp"
2025 librtmpte_protocol_deps="librtmp"
2026 mmsh_protocol_select="http_protocol"
2027 mmst_protocol_select="network"
2028 rtmp_protocol_deps="!librtmp_protocol"
2029 rtmp_protocol_select="tcp_protocol"
2030 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2031 rtmps_protocol_deps="!librtmp_protocol"
2032 rtmps_protocol_select="tls_protocol"
2033 rtmpt_protocol_select="ffrtmphttp_protocol"
2034 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2035 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2036 rtp_protocol_select="udp_protocol"
2037 sctp_protocol_deps="struct_sctp_event_subscribe"
2038 sctp_protocol_select="network"
2039 srtp_protocol_select="rtp_protocol"
2040 tcp_protocol_select="network"
2041 tls_protocol_deps_any="openssl gnutls"
2042 tls_protocol_select="tcp_protocol"
2043 udp_protocol_select="network"
2044
2045 # filters
2046 aconvert_filter_deps="swresample"
2047 amovie_filter_deps="avcodec avformat"
2048 aresample_filter_deps="swresample"
2049 ass_filter_deps="libass"
2050 asyncts_filter_deps="avresample"
2051 atempo_filter_deps="avcodec rdft"
2052 blackframe_filter_deps="gpl"
2053 boxblur_filter_deps="gpl"
2054 colormatrix_filter_deps="gpl"
2055 cropdetect_filter_deps="gpl"
2056 decimate_filter_deps="gpl avcodec"
2057 delogo_filter_deps="gpl"
2058 deshake_filter_deps="avcodec"
2059 drawtext_filter_deps="libfreetype"
2060 ebur128_filter_deps="gpl"
2061 flite_filter_deps="libflite"
2062 frei0r_filter_deps="frei0r dlopen"
2063 frei0r_filter_extralibs='$ldl'
2064 frei0r_src_filter_deps="frei0r dlopen"
2065 frei0r_src_filter_extralibs='$ldl'
2066 geq_filter_deps="gpl"
2067 histeq_filter_deps="gpl"
2068 hqdn3d_filter_deps="gpl"
2069 hue_filter_deps="gpl"
2070 kerndeint_filter_deps="gpl"
2071 movie_filter_deps="avcodec avformat"
2072 mp_filter_deps="gpl avcodec swscale inline_asm"
2073 mptestsrc_filter_deps="gpl"
2074 negate_filter_deps="lut_filter"
2075 noise_filter_deps="gpl"
2076 resample_filter_deps="avresample"
2077 ocv_filter_deps="libopencv"
2078 pan_filter_deps="swresample"
2079 pp_filter_deps="gpl postproc"
2080 removelogo_filter_deps="avcodec avformat swscale"
2081 scale_filter_deps="swscale"
2082 smartblur_filter_deps="gpl swscale"
2083 showspectrum_filter_deps="avcodec rdft"
2084 stereo3d_filter_deps="gpl"
2085 subtitles_filter_deps="avformat avcodec libass"
2086 super2xsai_filter_deps="gpl"
2087 tinterlace_filter_deps="gpl"
2088 yadif_filter_deps="gpl"
2089 pixfmts_super2xsai_test_deps="super2xsai_filter"
2090 tinterlace_merge_test_deps="tinterlace_filter"
2091 tinterlace_pad_test_deps="tinterlace_filter"
2092
2093 # libraries
2094 avcodec_deps="avutil"
2095 avdevice_deps="avutil avcodec avformat"
2096 avfilter_deps="avutil"
2097 avformat_deps="avutil avcodec"
2098 avresample_deps="avutil"
2099 postproc_deps="avutil gpl"
2100 swscale_deps="avutil"
2101
2102 # programs
2103 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2104 ffmpeg_select="ffbuffersink_filter format_filter aformat_filter
2105                setpts_filter null_filter anull_filter ffabuffersink_filter"
2106 ffplay_deps="avcodec avformat swscale swresample sdl"
2107 ffplay_select="ffbuffersink_filter rdft crop_filter"
2108 ffprobe_deps="avcodec avformat"
2109 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2110 ffserver_extralibs='$ldl'
2111
2112 # documentation
2113 podpages_deps="perl"
2114 manpages_deps="perl pod2man"
2115 htmlpages_deps="texi2html"
2116 txtpages_deps="makeinfo"
2117 doc_deps_any="manpages htmlpages podpages txtpages"
2118
2119 # default parameters
2120
2121 logfile="config.log"
2122
2123 # installation paths
2124 prefix_default="/usr/local"
2125 bindir_default='${prefix}/bin'
2126 datadir_default='${prefix}/share/ffmpeg'
2127 incdir_default='${prefix}/include'
2128 libdir_default='${prefix}/lib'
2129 mandir_default='${prefix}/share/man'
2130 shlibdir_default="$libdir_default"
2131
2132 # toolchain
2133 ar_default="ar"
2134 cc_default="gcc"
2135 cxx_default="g++"
2136 host_cc_default="gcc"
2137 cp_f="cp -f"
2138 install="install"
2139 ln_s="ln -s -f"
2140 nm_default="nm -g"
2141 objformat="elf"
2142 pkg_config_default=pkg-config
2143 ranlib="ranlib"
2144 strip_default="strip"
2145 yasmexe_default="yasm"
2146
2147 nogas=":"
2148
2149 # machine
2150 arch_default=$(uname -m)
2151 cpu="generic"
2152
2153 # OS
2154 target_os_default=$(tolower $(uname -s))
2155 host_os=$target_os_default
2156
2157 # configurable options
2158 enable $PROGRAM_LIST
2159 enable $DOCUMENT_LIST
2160 enable $(filter_out avresample $LIBRARY_LIST)
2161 enable stripping
2162
2163 enable asm
2164 enable debug
2165 enable doc
2166 enable optimizations
2167 enable runtime_cpudetect
2168 enable safe_bitstream_reader
2169 enable static
2170 enable swscale_alpha
2171
2172 # Enable hwaccels by default.
2173 enable dxva2 vaapi vdpau
2174
2175 # build settings
2176 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2177 FFSERVERLDFLAGS=-Wl,-E
2178 LIBPREF="lib"
2179 LIBSUF=".a"
2180 FULLNAME='$(NAME)$(BUILDSUF)'
2181 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2182 SLIBPREF="lib"
2183 SLIBSUF=".so"
2184 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2185 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2186 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2187 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2188 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2189 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2190
2191 asflags_filter=echo
2192 cflags_filter=echo
2193 ldflags_filter=echo
2194
2195 AS_C='-c'
2196 AS_O='-o $@'
2197 CC_C='-c'
2198 CC_E='-E -o $@'
2199 CC_O='-o $@'
2200 CXX_C='-c'
2201 CXX_O='-o $@'
2202 LD_O='-o $@'
2203 LD_LIB='-l%'
2204 LD_PATH='-L'
2205 HOSTCC_C='-c'
2206 HOSTCC_O='-o $@'
2207 HOSTLD_O='-o $@'
2208
2209 host_cflags='-O3 -g'
2210 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2211 host_libs='-lm'
2212 host_cflags_filter=echo
2213 host_ldflags_filter=echo
2214
2215 target_path='$(CURDIR)'
2216
2217 # since the object filename is not given with the -MM flag, the compiler
2218 # is only able to print the basename, and we must add the path ourselves
2219 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2220 DEPFLAGS='-MM'
2221
2222 # find source path
2223 if test -f configure; then
2224     source_path=.
2225 else
2226     source_path=$(cd $(dirname "$0"); pwd)
2227     echo "$source_path" | grep -q '[[:blank:]]' &&
2228         die "Out of tree builds are impossible with whitespace in source path."
2229     test -e "$source_path/config.h" &&
2230         die "Out of tree builds are impossible with config.h in source dir."
2231 fi
2232
2233 for v in "$@"; do
2234     r=${v#*=}
2235     l=${v%"$r"}
2236     r=$(sh_quote "$r")
2237     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2238 done
2239
2240 find_things(){
2241     thing=$1
2242     pattern=$2
2243     file=$source_path/$3
2244     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2245 }
2246
2247 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2248 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2249 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2250 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2251 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2252 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2253 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2254 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2255 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2256 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2257 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2258
2259 ALL_COMPONENTS="
2260     $BSF_LIST
2261     $DECODER_LIST
2262     $DEMUXER_LIST
2263     $ENCODER_LIST
2264     $FILTER_LIST
2265     $HWACCEL_LIST
2266     $INDEV_LIST
2267     $MUXER_LIST
2268     $OUTDEV_LIST
2269     $PARSER_LIST
2270     $PROTOCOL_LIST
2271 "
2272
2273 for n in $COMPONENT_LIST; do
2274     v=$(toupper ${n%s})_LIST
2275     eval enable \$$v
2276     eval ${n}_if_any="\$$v"
2277 done
2278
2279 enable $ARCH_EXT_LIST
2280
2281 die_unknown(){
2282     echo "Unknown option \"$1\"."
2283     echo "See $0 --help for available options."
2284     exit 1
2285 }
2286
2287 print_3_columns() {
2288     cat | tr ' ' '\n' | sort | pr -r -3 -t
2289 }
2290
2291 show_list() {
2292     suffix=_$1
2293     shift
2294     echo $* | sed s/$suffix//g | print_3_columns
2295     exit 0
2296 }
2297
2298 rand_list(){
2299     IFS=', '
2300     set -- $*
2301     unset IFS
2302     for thing; do
2303         comp=${thing%:*}
2304         prob=${thing#$comp}
2305         prob=${prob#:}
2306         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2307         echo "prob ${prob:-0.5}"
2308         printf '%s\n' $comp
2309     done
2310 }
2311
2312 do_random(){
2313     action=$1
2314     shift
2315     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2316     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2317 }
2318
2319 for opt do
2320     optval="${opt#*=}"
2321     case "$opt" in
2322         --extra-ldflags=*)
2323             add_ldflags $optval
2324         ;;
2325         --extra-libs=*)
2326             add_extralibs $optval
2327         ;;
2328         --disable-devices)
2329             disable $INDEV_LIST $OUTDEV_LIST
2330         ;;
2331         --enable-debug=*)
2332             debuglevel="$optval"
2333         ;;
2334         --disable-programs)
2335             disable $PROGRAM_LIST
2336         ;;
2337         --disable-everything)
2338             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2339         ;;
2340         --disable-all)
2341             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2342             disable $LIBRARY_LIST $PROGRAM_LIST doc
2343         ;;
2344         --enable-random|--disable-random)
2345             action=${opt%%-random}
2346             do_random ${action#--} $COMPONENT_LIST
2347         ;;
2348         --enable-random=*|--disable-random=*)
2349             action=${opt%%-random=*}
2350             do_random ${action#--} $optval
2351         ;;
2352         --enable-*=*|--disable-*=*)
2353             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2354             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2355             eval list=\$$(toupper $thing)_LIST
2356             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2357             list=$(filter "$name" $list)
2358             [ "$list" = "" ] && warn "Option $opt did not match anything"
2359             $action $list
2360         ;;
2361         --enable-?*|--disable-?*)
2362             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2363             if is_in $option $COMPONENT_LIST; then
2364                 test $action = disable && action=unset
2365                 eval $action \$$(toupper ${option%s})_LIST
2366             elif is_in $option $CMDLINE_SELECT; then
2367                 $action $option
2368             else
2369                 die_unknown $opt
2370             fi
2371         ;;
2372         --list-*)
2373             NAME="${opt#--list-}"
2374             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2375             NAME=${NAME%s}
2376             eval show_list $NAME \$$(toupper $NAME)_LIST
2377         ;;
2378         --help|-h) show_help
2379         ;;
2380         --fatal-warnings) enable fatal_warnings
2381         ;;
2382         *)
2383             optname="${opt%%=*}"
2384             optname="${optname#--}"
2385             optname=$(echo "$optname" | sed 's/-/_/g')
2386             if is_in $optname $CMDLINE_SET; then
2387                 eval $optname='$optval'
2388             elif is_in $optname $CMDLINE_APPEND; then
2389                 append $optname "$optval"
2390             else
2391                 die_unknown $opt
2392             fi
2393         ;;
2394     esac
2395 done
2396
2397 disabled logging && logfile=/dev/null
2398
2399 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2400 set >> $logfile
2401
2402 test -n "$cross_prefix" && enable cross_compile
2403
2404 if enabled cross_compile; then
2405     test -n "$arch" && test -n "$target_os" ||
2406         die "Must specify target arch and OS when cross-compiling"
2407 fi
2408
2409 ar_default="${cross_prefix}${ar_default}"
2410 cc_default="${cross_prefix}${cc_default}"
2411 cxx_default="${cross_prefix}${cxx_default}"
2412 nm_default="${cross_prefix}${nm_default}"
2413 pkg_config_default="${cross_prefix}${pkg_config_default}"
2414 ranlib="${cross_prefix}${ranlib}"
2415 strip_default="${cross_prefix}${strip_default}"
2416
2417 sysinclude_default="${sysroot}/usr/include"
2418
2419 case "$toolchain" in
2420     clang-asan)
2421         cc_default="clang"
2422         add_cflags  -faddress-sanitizer
2423         add_ldflags -faddress-sanitizer
2424     ;;
2425     clang-tsan)
2426         cc_default="clang"
2427         add_cflags  -fthread-sanitizer
2428         add_ldflags -fthread-sanitizer
2429     ;;
2430     msvc)
2431         cc_default="c99wrap cl"
2432         ld_default="c99wrap link"
2433         nm_default="dumpbin -symbols"
2434         ar_default="lib"
2435         target_os_default="win32"
2436     ;;
2437     ?*)
2438         die "Unknown toolchain $toolchain"
2439     ;;
2440 esac
2441
2442 set_default arch cc cxx pkg_config strip sysinclude target_os yasmexe
2443 enabled cross_compile || host_cc_default=$cc
2444 set_default host_cc
2445
2446 if ! $pkg_config --version >/dev/null 2>&1; then
2447     warn "$pkg_config not found, library detection may fail."
2448     pkg_config=false
2449 fi
2450
2451 exesuf() {
2452     case $1 in
2453         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2454     esac
2455 }
2456
2457 EXESUF=$(exesuf $target_os)
2458 HOSTEXESUF=$(exesuf $host_os)
2459
2460 # set temporary file name
2461 : ${TMPDIR:=$TEMPDIR}
2462 : ${TMPDIR:=$TMP}
2463 : ${TMPDIR:=/tmp}
2464
2465 if ! check_cmd mktemp -u XXXXXX; then
2466     # simple replacement for missing mktemp
2467     # NOT SAFE FOR GENERAL USE
2468     mktemp(){
2469         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2470     }
2471 fi
2472
2473 tmpfile(){
2474     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2475         (set -C; exec > $tmp) 2>/dev/null ||
2476         die "Unable to create temporary file in $TMPDIR."
2477     append TMPFILES $tmp
2478     eval $1=$tmp
2479 }
2480
2481 trap 'rm -f -- $TMPFILES' EXIT
2482
2483 tmpfile TMPASM .asm
2484 tmpfile TMPC   .c
2485 tmpfile TMPCPP .cpp
2486 tmpfile TMPE   $EXESUF
2487 tmpfile TMPH   .h
2488 tmpfile TMPO   .o
2489 tmpfile TMPS   .S
2490 tmpfile TMPSH  .sh
2491 tmpfile TMPV   .ver
2492
2493 unset -f mktemp
2494
2495 chmod +x $TMPE
2496
2497 # make sure we can execute files in $TMPDIR
2498 cat > $TMPSH 2>> $logfile <<EOF
2499 #! /bin/sh
2500 EOF
2501 chmod +x $TMPSH >> $logfile 2>&1
2502 if ! $TMPSH >> $logfile 2>&1; then
2503     cat <<EOF
2504 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2505 variable to another directory and make sure that it is not mounted noexec.
2506 EOF
2507     die "Sanity test failed."
2508 fi
2509
2510 ccc_flags(){
2511     for flag; do
2512         case $flag in
2513             -std=c99)           echo -c99                       ;;
2514             -mcpu=*)            echo -arch ${flag#*=}           ;;
2515             -mieee)             echo -ieee                      ;;
2516             -O*|-fast)          echo $flag                      ;;
2517             -fno-math-errno)    echo -assume nomath_errno       ;;
2518             -g)                 echo -g3                        ;;
2519             -Wall)              echo -msg_enable level2         ;;
2520             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2521             -Wl,*)              echo $flag                      ;;
2522             -f*|-W*)                                            ;;
2523             *)                  echo $flag                      ;;
2524         esac
2525    done
2526 }
2527
2528 msvc_flags(){
2529     for flag; do
2530         case $flag in
2531             -fomit-frame-pointer) echo -Oy ;;
2532             -g)                   echo -Z7 ;;
2533             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2534                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2535                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2536                                        -wd4554 \
2537                                        -wd4996 -wd4273 ;;
2538             -std=c99)             ;;
2539             -fno-math-errno)      ;;
2540             -fno-common)          ;;
2541             -fno-signed-zeros)    ;;
2542             -fPIC)                ;;
2543             -lz)                  echo zlib.lib ;;
2544             -lavifil32)           echo vfw32.lib ;;
2545             -lavicap32)           echo vfw32.lib user32.lib ;;
2546             -l*)                  echo ${flag#-l}.lib ;;
2547             *)                    echo $flag ;;
2548         esac
2549     done
2550 }
2551
2552 pgi_flags(){
2553     for flag; do
2554         case $flag in
2555             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2556             -fomit-frame-pointer) echo -Mnoframe ;;
2557             -g)                   echo -gopt ;;
2558             *)                    echo $flag ;;
2559         esac
2560     done
2561 }
2562
2563 suncc_flags(){
2564     for flag; do
2565         case $flag in
2566             -march=*|-mcpu=*)
2567                 case "${flag#*=}" in
2568                     native)                   echo -xtarget=native       ;;
2569                     v9|niagara)               echo -xarch=sparc          ;;
2570                     ultrasparc)               echo -xarch=sparcvis       ;;
2571                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2572                     i586|pentium)             echo -xchip=pentium        ;;
2573                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2574                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2575                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2576                     pentium4*)          echo -xtarget=pentium4           ;;
2577                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2578                     *-sse3)             echo -xarch=sse3                 ;;
2579                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2580                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2581                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2582                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2583                     bdver*)                   echo -xarch=avx            ;;
2584                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2585                     k8|opteron|athlon64|athlon-fx)
2586                                               echo -xarch=sse2a          ;;
2587                     athlon*)                  echo -xarch=pentium_proa   ;;
2588                 esac
2589                 ;;
2590             -std=c99)             echo -xc99              ;;
2591             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2592             -fPIC)                echo -KPIC -xcode=pic32 ;;
2593             -W*,*)                echo $flag              ;;
2594             -f*-*|-W*|-mimpure-text)                      ;;
2595             -shared)              echo -G                 ;;
2596             *)                    echo $flag              ;;
2597         esac
2598     done
2599 }
2600
2601 tms470_flags(){
2602     for flag; do
2603         case $flag in
2604             -march=*|-mcpu=*)
2605                 case "${flag#*=}" in
2606                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2607                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2608                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2609                     armv6*|arm11*)          echo -mv=6   ;;
2610                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2611                                             echo -mv=5e  ;;
2612                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2613                 esac
2614                 ;;
2615             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2616             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2617             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2618             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2619             -msoft-float)   echo --float_support=vfplib       ;;
2620             -O[0-3]|-mf=*)  echo $flag                        ;;
2621             -g)             echo -g -mn                       ;;
2622             -pds=*)         echo $flag                        ;;
2623             -D*|-I*)        echo $flag                        ;;
2624             --gcc|--abi=*)  echo $flag                        ;;
2625             -me)            echo $flag                        ;;
2626         esac
2627     done
2628 }
2629
2630 probe_cc(){
2631     pfx=$1
2632     _cc=$2
2633
2634     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2635     unset _ld_o _ldflags _ld_lib _ld_path
2636     unset _depflags _DEPCMD _DEPFLAGS
2637     _flags_filter=echo
2638
2639     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2640         _type=llvm_gcc
2641         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2642         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2643         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2644         _cflags_speed='-O3'
2645         _cflags_size='-Os'
2646     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2647         _type=gcc
2648         gcc_version=$($_cc --version | head -n1)
2649         gcc_basever=$($_cc -dumpversion)
2650         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2651         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2652         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2653         if ! $_cc -dumpversion | grep -q '^2\.'; then
2654             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2655         fi
2656         _cflags_speed='-O3'
2657         _cflags_size='-Os'
2658     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2659         _type=icc
2660         _ident=$($_cc --version | head -n1)
2661         _depflags='-MMD'
2662         _cflags_speed='-O3'
2663         _cflags_size='-Os'
2664         _cflags_noopt='-O1'
2665     elif $_cc -v 2>&1 | grep -q xlc; then
2666         _type=xlc
2667         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2668         _cflags_speed='-O5'
2669         _cflags_size='-O5 -qcompact'
2670     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2671         _type=ccc
2672         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2673         _DEPFLAGS='-M'
2674         _cflags_speed='-fast'
2675         _cflags_size='-O1'
2676         _flags_filter=ccc_flags
2677     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2678         test -d "$sysroot" || die "No valid sysroot specified."
2679         _type=armcc
2680         _ident=$($_cc --vsn | head -n1)
2681         armcc_conf="$PWD/armcc.conf"
2682         $_cc --arm_linux_configure                 \
2683              --arm_linux_config_file="$armcc_conf" \
2684              --configure_sysroot="$sysroot"        \
2685              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2686              die "Error creating armcc configuration file."
2687         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2688         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2689         as_default="${cross_prefix}gcc"
2690         _depflags='-MMD'
2691         _cflags_speed='-O3'
2692         _cflags_size='-Os'
2693     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2694         _type=tms470
2695         _ident=$($_cc -version | head -n1 | tr -s ' ')
2696         _flags='--gcc --abi=eabi -me'
2697         _cc_e='-ppl -fe=$@'
2698         _cc_o='-fe=$@'
2699         _depflags='-ppa -ppd=$(@:.o=.d)'
2700         _cflags_speed='-O3 -mf=5'
2701         _cflags_size='-O3 -mf=2'
2702         _flags_filter=tms470_flags
2703     elif $_cc -v 2>&1 | grep -q clang; then
2704         _type=clang
2705         _ident=$($_cc --version | head -n1)
2706         _depflags='-MMD'
2707         _cflags_speed='-O3'
2708         _cflags_size='-Os'
2709     elif $_cc -V 2>&1 | grep -q Sun; then
2710         _type=suncc
2711         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2712         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2713         _DEPFLAGS='-xM1 -xc99'
2714         _ldflags='-std=c99'
2715         _cflags_speed='-O5'
2716         _cflags_size='-O5 -xspace'
2717         _flags_filter=suncc_flags
2718     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2719         _type=pathscale
2720         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2721         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2722         _cflags_speed='-O2'
2723         _cflags_size='-Os'
2724         _flags_filter='filter_out -Wdisabled-optimization'
2725     elif $_cc -v 2>&1 | grep -q Open64; then
2726         _type=open64
2727         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2728         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2729         _cflags_speed='-O2'
2730         _cflags_size='-Os'
2731         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2732     elif $_cc -V 2>&1 | grep -q Portland; then
2733         _type=pgi
2734         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2735         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2736         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2737         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2738         _cflags_noopt="-O1"
2739         _flags_filter=pgi_flags
2740     elif $_cc 2>&1 | grep -q Microsoft; then
2741         _type=msvc
2742         _ident=$($cc 2>&1 | head -n1)
2743         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2744         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2745         _cflags_speed="-O2"
2746         _cflags_size="-O1"
2747         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2748         if $_cc 2>&1 | grep -q Linker; then
2749             _ld_o='-out $@'
2750         else
2751             _ld_o='-Fe$@'
2752         fi
2753         _cc_o='-Fo $@'
2754         _cc_e='-P -Fi $@'
2755         _flags_filter=msvc_flags
2756         _ld_lib='lib%.a'
2757         _ld_path='-libpath:'
2758         _flags='-nologo'
2759         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2760         if [ $pfx = hostcc ]; then
2761             append _cflags -Dsnprintf=_snprintf
2762         fi
2763         disable stripping
2764     fi
2765
2766     eval ${pfx}_type=\$_type
2767     eval ${pfx}_ident=\$_ident
2768 }
2769
2770 set_ccvars(){
2771     eval ${1}_C=\${_cc_c-\${${1}_C}}
2772     eval ${1}_E=\${_cc_e-\${${1}_E}}
2773     eval ${1}_O=\${_cc_o-\${${1}_O}}
2774
2775     if [ -n "$_depflags" ]; then
2776         eval ${1}_DEPFLAGS=\$_depflags
2777     else
2778         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2779         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2780         eval DEP${1}FLAGS=\$_flags
2781     fi
2782 }
2783
2784 probe_cc cc "$cc"
2785 cflags_filter=$_flags_filter
2786 cflags_speed=$_cflags_speed
2787 cflags_size=$_cflags_size
2788 cflags_noopt=$_cflags_noopt
2789 add_cflags $_flags $_cflags
2790 cc_ldflags=$_ldflags
2791 set_ccvars CC
2792
2793 probe_cc hostcc "$host_cc"
2794 host_cflags_filter=$_flags_filter
2795 add_host_cflags  $_flags $_cflags
2796 set_ccvars HOSTCC
2797
2798 test -n "$cc_type" && enable $cc_type ||
2799     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2800
2801 : ${as_default:=$cc}
2802 : ${dep_cc_default:=$cc}
2803 : ${ld_default:=$cc}
2804 : ${host_ld_default:=$host_cc}
2805 set_default ar as dep_cc ld host_ld
2806
2807 probe_cc as "$as"
2808 asflags_filter=$_flags_filter
2809 add_asflags $_flags $_cflags
2810 set_ccvars AS
2811
2812 probe_cc ld "$ld"
2813 ldflags_filter=$_flags_filter
2814 add_ldflags $_flags $_ldflags
2815 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2816 LD_O=${_ld_o-$LD_O}
2817 LD_LIB=${_ld_lib-$LD_LIB}
2818 LD_PATH=${_ld_path-$LD_PATH}
2819
2820 probe_cc hostld "$host_ld"
2821 host_ldflags_filter=$_flags_filter
2822 add_host_ldflags $_flags $_ldflags
2823 HOSTLD_O=${_ld_o-$HOSTLD_O}
2824
2825 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2826     probe_cc depcc "$dep_cc"
2827     CCDEP=${_DEPCMD:-$DEPCMD}
2828     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2829     DEPCCFLAGS=$_flags
2830 fi
2831
2832 if $ar 2>&1 | grep -q Microsoft; then
2833     arflags="-nologo"
2834     ar_o='-out:$@'
2835 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2836     arflags="rq"
2837     ar_o='$@'
2838 else
2839     arflags="rc"
2840     ar_o='$@'
2841 fi
2842
2843 add_cflags $extra_cflags
2844 add_cxxflags $extra_cxxflags
2845 add_asflags $extra_cflags
2846
2847 if test -n "$sysroot"; then
2848     case "$cc_type" in
2849         gcc|llvm_gcc|clang)
2850             add_cppflags --sysroot="$sysroot"
2851             add_ldflags --sysroot="$sysroot"
2852         ;;
2853         tms470)
2854             add_cppflags -I"$sysinclude"
2855             add_ldflags  --sysroot="$sysroot"
2856         ;;
2857     esac
2858 fi
2859
2860 if test "$cpu" = host; then
2861     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2862
2863     case "$cc_type" in
2864         gcc|llvm_gcc)
2865             check_native(){
2866                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2867                 sed -n "/cc1.*$1=/{
2868                             s/.*$1=\\([^ ]*\\).*/\\1/
2869                             p
2870                             q
2871                         }" $TMPE
2872             }
2873             cpu=$(check_native -march || check_native -mcpu)
2874         ;;
2875     esac
2876
2877     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2878 fi
2879
2880 # Deal with common $arch aliases
2881 case "$arch" in
2882     aarch64|arm64)
2883         arch="aarch64"
2884     ;;
2885     arm*|iPad*)
2886         arch="arm"
2887     ;;
2888     mips*|IP*)
2889         arch="mips"
2890     ;;
2891     parisc*|hppa*)
2892         arch="parisc"
2893     ;;
2894     "Power Macintosh"|ppc*|powerpc*)
2895         arch="ppc"
2896     ;;
2897     s390|s390x)
2898         arch="s390"
2899     ;;
2900     sh4|sh)
2901         arch="sh4"
2902     ;;
2903     sun4u|sparc*)
2904         arch="sparc"
2905     ;;
2906     tilegx|tile-gx)
2907         arch="tilegx"
2908     ;;
2909     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2910         arch="x86"
2911     ;;
2912 esac
2913
2914 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2915 enable $arch
2916
2917 # Add processor-specific flags
2918 if enabled aarch64; then
2919
2920     case $cpu in
2921         armv*)
2922             cpuflags="-march=$cpu"
2923         ;;
2924         *)
2925             cpuflags="-mcpu=$cpu"
2926         ;;
2927     esac
2928
2929 elif enabled alpha; then
2930
2931     cpuflags="-mcpu=$cpu"
2932
2933 elif enabled arm; then
2934
2935     check_arm_arch() {
2936         check_cpp_condition stddef.h \
2937             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2938             $cpuflags
2939     }
2940
2941     probe_arm_arch() {
2942         if   check_arm_arch 4;        then echo armv4;
2943         elif check_arm_arch 4T;       then echo armv4t;
2944         elif check_arm_arch 5;        then echo armv5;
2945         elif check_arm_arch 5E;       then echo armv5e;
2946         elif check_arm_arch 5T;       then echo armv5t;
2947         elif check_arm_arch 5TE;      then echo armv5te;
2948         elif check_arm_arch 5TEJ;     then echo armv5te;
2949         elif check_arm_arch 6;        then echo armv6;
2950         elif check_arm_arch 6J;       then echo armv6j;
2951         elif check_arm_arch 6K;       then echo armv6k;
2952         elif check_arm_arch 6Z;       then echo armv6z;
2953         elif check_arm_arch 6ZK;      then echo armv6zk;
2954         elif check_arm_arch 6T2;      then echo armv6t2;
2955         elif check_arm_arch 7;        then echo armv7;
2956         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2957         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2958         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2959         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2960         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2961         fi
2962     }
2963
2964     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2965
2966     case $cpu in
2967         armv*)
2968             cpuflags="-march=$cpu"
2969             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2970         ;;
2971         *)
2972             cpuflags="-mcpu=$cpu"
2973             case $cpu in
2974                 cortex-a*)                               subarch=armv7a  ;;
2975                 cortex-r*)                               subarch=armv7r  ;;
2976                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2977                 arm11*)                                  subarch=armv6   ;;
2978                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2979                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2980                 *)                             subarch=$(probe_arm_arch) ;;
2981             esac
2982         ;;
2983     esac
2984
2985     case "$subarch" in
2986         armv5t*)    enable fast_clz                ;;
2987         armv[6-8]*) enable fast_clz fast_unaligned ;;
2988     esac
2989
2990 elif enabled avr32; then
2991
2992     case $cpu in
2993         ap7[02]0[0-2])
2994             subarch="avr32_ap"
2995             cpuflags="-mpart=$cpu"
2996         ;;
2997         ap)
2998             subarch="avr32_ap"
2999             cpuflags="-march=$cpu"
3000         ;;
3001         uc3[ab]*)
3002             subarch="avr32_uc"
3003             cpuflags="-mcpu=$cpu"
3004         ;;
3005         uc)
3006             subarch="avr32_uc"
3007             cpuflags="-march=$cpu"
3008         ;;
3009     esac
3010
3011 elif enabled bfin; then
3012
3013     cpuflags="-mcpu=$cpu"
3014
3015 elif enabled mips; then
3016
3017     cpuflags="-march=$cpu"
3018
3019     case $cpu in
3020         24kc)
3021             disable mipsfpu
3022             disable mipsdspr1
3023             disable mipsdspr2
3024         ;;
3025         24kf*)
3026             disable mipsdspr1
3027             disable mipsdspr2
3028         ;;
3029         24kec|34kc|1004kc)
3030             disable mipsfpu
3031             disable mipsdspr2
3032         ;;
3033         24kef*|34kf*|1004kf*)
3034             disable mipsdspr2
3035         ;;
3036         74kc)
3037             disable mipsfpu
3038         ;;
3039     esac
3040
3041 elif enabled ppc; then
3042
3043     case $(tolower $cpu) in
3044         601|ppc601|powerpc601)
3045             cpuflags="-mcpu=601"
3046             disable altivec
3047         ;;
3048         603*|ppc603*|powerpc603*)
3049             cpuflags="-mcpu=603"
3050             disable altivec
3051         ;;
3052         604*|ppc604*|powerpc604*)
3053             cpuflags="-mcpu=604"
3054             disable altivec
3055         ;;
3056         g3|75*|ppc75*|powerpc75*)
3057             cpuflags="-mcpu=750"
3058             disable altivec
3059         ;;
3060         g4|745*|ppc745*|powerpc745*)
3061             cpuflags="-mcpu=7450"
3062         ;;
3063         74*|ppc74*|powerpc74*)
3064             cpuflags="-mcpu=7400"
3065         ;;
3066         g5|970|ppc970|powerpc970)
3067             cpuflags="-mcpu=970"
3068         ;;
3069         power[3-7]*)
3070             cpuflags="-mcpu=$cpu"
3071         ;;
3072         cell)
3073             cpuflags="-mcpu=cell"
3074             enable ldbrx
3075         ;;
3076         e500mc)
3077             cpuflags="-mcpu=e500mc"
3078             disable altivec
3079         ;;
3080         e500v2)
3081             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3082             disable altivec
3083         ;;
3084         e500)
3085             cpuflags="-mcpu=8540 -mhard-float"
3086             disable altivec
3087         ;;
3088     esac
3089
3090 elif enabled sparc; then
3091
3092     case $cpu in
3093         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3094             cpuflags="-mcpu=$cpu"
3095             disable vis
3096         ;;
3097         ultrasparc*|niagara[234])
3098             cpuflags="-mcpu=$cpu"
3099         ;;
3100     esac
3101
3102 elif enabled x86; then
3103
3104     case $cpu in
3105         i[345]86|pentium)
3106             cpuflags="-march=$cpu"
3107             disable mmx
3108         ;;
3109         # targets that do NOT support conditional mov (cmov)
3110         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3111             cpuflags="-march=$cpu"
3112             disable cmov
3113         ;;
3114         # targets that do support conditional mov (cmov)
3115         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3116             cpuflags="-march=$cpu"
3117             enable cmov
3118             enable fast_cmov
3119         ;;
3120         # targets that do support conditional mov but on which it's slow
3121         pentium4|pentium4m|prescott|nocona)
3122             cpuflags="-march=$cpu"
3123             enable cmov
3124             disable fast_cmov
3125         ;;
3126     esac
3127
3128 fi
3129
3130 if [ "$cpu" != generic ]; then
3131     add_cflags  $cpuflags
3132     add_asflags $cpuflags
3133 fi
3134
3135 # compiler sanity check
3136 check_exec <<EOF
3137 int main(void){ return 0; }
3138 EOF
3139 if test "$?" != 0; then
3140     echo "$cc is unable to create an executable file."
3141     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3142         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3143         echo "Only do this if you know what cross compiling means."
3144     fi
3145     die "C compiler test failed."
3146 fi
3147
3148 add_cppflags -D_ISOC99_SOURCE
3149 add_cxxflags -D__STDC_CONSTANT_MACROS
3150 check_cflags -std=c99
3151 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3152 #include <stdlib.h>
3153 EOF
3154 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3155 #include <stdlib.h>
3156 EOF
3157
3158 check_host_cflags -std=c99
3159 check_host_cflags -Wall
3160
3161 check_64bit(){
3162     arch32=$1
3163     arch64=$2
3164     expr=$3
3165     check_code cc "" "int test[2*($expr) - 1]" &&
3166         subarch=$arch64 || subarch=$arch32
3167 }
3168
3169 case "$arch" in
3170     aarch64|alpha|ia64)
3171         spic=$shared
3172     ;;
3173     mips)
3174         check_64bit mips mips64 '_MIPS_SIM > 1'
3175         spic=$shared
3176     ;;
3177     parisc)
3178         check_64bit parisc parisc64 'sizeof(void *) > 4'
3179         spic=$shared
3180     ;;
3181     ppc)
3182         check_64bit ppc ppc64 'sizeof(void *) > 4'
3183         spic=$shared
3184     ;;
3185     sparc)
3186         check_64bit sparc sparc64 'sizeof(void *) > 4'
3187         spic=$shared
3188     ;;
3189     x86)
3190         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3191         if test "$subarch" = "x86_64"; then
3192             spic=$shared
3193         fi
3194     ;;
3195     ppc)
3196         check_cc <<EOF && subarch="ppc64"
3197         int test[(int)sizeof(char*) - 7];
3198 EOF
3199     ;;
3200 esac
3201
3202 enable $subarch
3203 enabled spic && enable pic
3204
3205 # OS specific
3206 case $target_os in
3207     haiku)
3208         prefix_default="/boot/common"
3209         network_extralibs="-lnetwork"
3210         host_libs=
3211         ;;
3212     sunos)
3213         FFSERVERLDFLAGS=""
3214         SHFLAGS='-shared -Wl,-h,$$(@F)'
3215         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3216         network_extralibs="-lsocket -lnsl"
3217         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3218         # When using suncc to build, the Solaris linker will mark
3219         # an executable with each instruction set encountered by
3220         # the Solaris assembler.  As our libraries contain their own
3221         # guards for processor-specific code, instead suppress
3222         # generation of the HWCAPS ELF section on Solaris x86 only.
3223         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3224         nm_default='nm -P -g'
3225         ;;
3226     netbsd)
3227         disable symver
3228         oss_indev_extralibs="-lossaudio"
3229         oss_outdev_extralibs="-lossaudio"
3230         enabled gcc || check_ldflags -Wl,-zmuldefs
3231         ;;
3232     openbsd|bitrig)
3233         disable symver
3234         SHFLAGS='-shared'
3235         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3236         SLIB_INSTALL_LINKS=
3237         oss_indev_extralibs="-lossaudio"
3238         oss_outdev_extralibs="-lossaudio"
3239         ;;
3240     dragonfly)
3241         disable symver
3242         ;;
3243     freebsd)
3244         ;;
3245     bsd/os)
3246         add_extralibs -lpoll -lgnugetopt
3247         strip="strip -d"
3248         ;;
3249     darwin)
3250         gas="gas-preprocessor.pl $cc"
3251         enabled ppc && add_asflags -force_cpusubtype_ALL
3252         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3253         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3254         strip="${strip} -x"
3255         add_ldflags -Wl,-dynamic,-search_paths_first
3256         SLIBSUF=".dylib"
3257         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3258         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3259         FFSERVERLDFLAGS=-Wl,-bind_at_load
3260         objformat="macho"
3261         enabled x86_64 && objformat="macho64"
3262         enabled_any pic shared ||
3263             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3264         ;;
3265     mingw32*)
3266         if test $target_os = "mingw32ce"; then
3267             disable network
3268         else
3269             target_os=mingw32
3270         fi
3271         LIBTARGET=i386
3272         if enabled x86_64; then
3273             LIBTARGET="i386:x86-64"
3274         elif enabled arm; then
3275             LIBTARGET=arm-wince
3276         fi
3277         shlibdir_default="$bindir_default"
3278         SLIBPREF=""
3279         SLIBSUF=".dll"
3280         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3281         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3282         dlltool="${cross_prefix}dlltool"
3283         if check_cmd lib.exe -list; then
3284             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3285             if enabled x86_64; then
3286                 LIBTARGET=x64
3287             fi
3288         elif check_cmd $dlltool --version; then
3289             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3290         fi
3291         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3292         SLIB_INSTALL_LINKS=
3293         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3294         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3295         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3296         objformat="win32"
3297         ranlib=:
3298         enable dos_paths
3299         ;;
3300     win32|win64)
3301         if enabled shared; then
3302             # Link to the import library instead of the normal static library
3303             # for shared libs.
3304             LD_LIB='%.lib'
3305             # Cannot build shared and static libraries at the same time with
3306             # MSVC.
3307             disable static
3308         fi
3309         shlibdir_default="$bindir_default"
3310         SLIBPREF=""
3311         SLIBSUF=".dll"
3312         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3313         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3314         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3315         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3316         SLIB_INSTALL_LINKS=
3317         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3318         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3319         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3320         objformat="win32"
3321         ranlib=:
3322         enable dos_paths
3323         ;;
3324     cygwin*)
3325         target_os=cygwin
3326         shlibdir_default="$bindir_default"
3327         SLIBPREF="cyg"
3328         SLIBSUF=".dll"
3329         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3330         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3331         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3332         SLIB_INSTALL_LINKS=
3333         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3334         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3335         objformat="win32"
3336         enable dos_paths
3337         ;;
3338     *-dos|freedos|opendos)
3339         network_extralibs="-lsocket"
3340         objformat="coff"
3341         enable dos_paths
3342         add_cppflags -U__STRICT_ANSI__
3343         ;;
3344     linux)
3345         enable dv1394
3346         ;;
3347     irix*)
3348         target_os=irix
3349         ranlib="echo ignoring ranlib"
3350         ;;
3351     os/2*)
3352         strip="lxlite -CS"
3353         ln_s="cp -f"
3354         objformat="aout"
3355         add_cppflags -D_GNU_SOURCE
3356         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3357         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3358         FFSERVERLDFLAGS=""
3359         LIBSUF="_s.a"
3360         SLIBPREF=""
3361         SLIBSUF=".dll"
3362         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3363         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3364         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3365             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3366             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3367             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3368             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3369             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3370         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3371             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3372         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3373         enable dos_paths
3374         enable_weak os2threads
3375         ;;
3376     gnu/kfreebsd)
3377         add_cppflags -D_BSD_SOURCE
3378         ;;
3379     gnu)
3380         ;;
3381     qnx)
3382         add_cppflags -D_QNX_SOURCE
3383         network_extralibs="-lsocket"
3384         ;;
3385     symbian)
3386         SLIBSUF=".dll"
3387         enable dos_paths
3388         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3389         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3390         add_ldflags -Wl,--target1-abs,--no-undefined \
3391                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3392                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3393         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3394                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3395                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3396         ;;
3397     osf1)
3398         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3399         FFSERVERLDFLAGS=
3400         ;;
3401     minix)
3402         ;;
3403     plan9)
3404         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3405                      -D_REENTRANT_SOURCE        \
3406                      -D_RESEARCH_SOURCE         \
3407                      -DFD_SETSIZE=96            \
3408                      -DHAVE_SOCK_OPTS
3409         add_compat strtod.o strtod=avpriv_strtod
3410         network_extralibs='-lbsd'
3411         exeobjs=compat/plan9/main.o
3412         disable ffserver
3413         cp_f='cp'
3414         ;;
3415     none)
3416         ;;
3417     *)
3418         die "Unknown OS '$target_os'."
3419         ;;
3420 esac
3421
3422 # determine libc flavour
3423
3424 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3425 if check_cpp_condition features.h "defined __UCLIBC__"; then
3426     libc_type=uclibc
3427     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3428 elif check_cpp_condition features.h "defined __GLIBC__"; then
3429     libc_type=glibc
3430     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3431 # MinGW headers can be installed on Cygwin, so check for newlib first.
3432 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3433     libc_type=newlib
3434     add_cppflags -U__STRICT_ANSI__
3435 elif check_header _mingw.h; then
3436     libc_type=mingw
3437     check_cpp_condition _mingw.h \
3438         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3439             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3440         die "ERROR: MinGW runtime version must be >= 3.15."
3441     add_cppflags -U__STRICT_ANSI__
3442     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3443             __MINGW64_VERSION_MAJOR < 3"; then
3444         add_compat msvcrt/snprintf.o
3445         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3446     fi
3447 elif check_func_headers stdlib.h _get_doserrno; then
3448     libc_type=msvcrt
3449     add_compat strtod.o strtod=avpriv_strtod
3450     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3451                                  _snprintf=avpriv_snprintf  \
3452                                  vsnprintf=avpriv_vsnprintf
3453 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3454     libc_type=klibc
3455 fi
3456
3457 test -n "$libc_type" && enable $libc_type
3458
3459 # hacks for compiler/libc/os combinations
3460
3461 if enabled_all tms470 glibc; then
3462     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3463     add_cppflags -D__USER_LABEL_PREFIX__=
3464     add_cppflags -D__builtin_memset=memset
3465     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3466     add_cflags   -pds=48    # incompatible redefinition of macro
3467 fi
3468
3469 if enabled_all ccc glibc; then
3470     add_ldflags -Wl,-z,now  # calls to libots crash without this
3471 fi
3472
3473 esc(){
3474     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3475 }
3476
3477 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3478
3479 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3480
3481 set_default $PATHS_LIST
3482 set_default nm
3483
3484 # we need to build at least one lib type
3485 if ! enabled_any static shared; then
3486     cat <<EOF
3487 At least one library type must be built.
3488 Specify --enable-static to build the static libraries or --enable-shared to
3489 build the shared libraries as well. To only build the shared libraries specify
3490 --disable-static in addition to --enable-shared.
3491 EOF
3492     exit 1;
3493 fi
3494
3495 die_license_disabled() {
3496     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3497 }
3498
3499 die_license_disabled_gpl() {
3500     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3501 }
3502
3503 die_license_disabled gpl libcdio
3504 die_license_disabled gpl libutvideo
3505 die_license_disabled gpl libx264
3506 die_license_disabled gpl libxavs
3507 die_license_disabled gpl libxvid
3508 die_license_disabled gpl x11grab
3509
3510 die_license_disabled nonfree libaacplus
3511 die_license_disabled nonfree libfaac
3512 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3513 enabled gpl && die_license_disabled_gpl nonfree openssl
3514
3515 die_license_disabled version3 libopencore_amrnb
3516 die_license_disabled version3 libopencore_amrwb
3517 die_license_disabled version3 libvo_aacenc
3518 die_license_disabled version3 libvo_amrwbenc
3519
3520 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3521
3522 disabled optimizations || check_cflags -fomit-frame-pointer
3523
3524 enable_pic() {
3525     enable pic
3526     add_cppflags -DPIC
3527     add_cflags   -fPIC
3528     add_asflags  -fPIC
3529 }
3530
3531 enabled pic && enable_pic
3532
3533 check_cc <<EOF || die "Symbol mangling check failed."
3534 int ff_extern;
3535 EOF
3536 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3537 extern_prefix=${sym%%ff_extern*}
3538
3539 check_cc <<EOF && enable_weak inline_asm
3540 void foo(void) { __asm__ volatile ("" ::); }
3541 EOF
3542
3543 _restrict=
3544 for restrict_keyword in restrict __restrict__ __restrict; do
3545     check_cc <<EOF && _restrict=$restrict_keyword && break
3546 void foo(char * $restrict_keyword p);
3547 EOF
3548 done
3549
3550 check_cc <<EOF && enable attribute_packed
3551 struct { int x; } __attribute__((packed)) x;
3552 EOF
3553
3554 check_cc <<EOF && enable attribute_may_alias
3555 union { int x; } __attribute__((may_alias)) x;
3556 EOF
3557
3558 check_cc <<EOF || die "endian test failed"
3559 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3560 EOF
3561 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3562
3563 if enabled alpha; then
3564
3565     check_cflags -mieee
3566
3567 elif enabled arm; then
3568
3569     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3570 float func(float a, float b){ return a+b; }
3571 EOF
3572
3573     enabled thumb && check_cflags -mthumb || check_cflags -marm
3574     nogas=die
3575
3576     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3577         enable vfp_args
3578     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3579         case "${cross_prefix:-$cc}" in
3580             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3581             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3582 __asm__ (".eabi_attribute 28, 1");
3583 int main(void) { return 0; }
3584 EOF
3585         esac
3586         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3587     fi
3588
3589     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3590     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3591     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3592     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3593     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3594     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3595
3596     [ $target_os = linux ] ||
3597         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3598             $ARCH_EXT_LIST_ARM
3599
3600     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3601     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3602
3603     enabled_all armv6t2 shared !pic && enable_pic
3604
3605 elif enabled mips; then
3606
3607     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3608     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3609      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3610     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3611      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3612     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3613      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3614     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3615      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3616
3617 elif enabled parisc; then
3618
3619     if enabled gcc; then
3620         case $($cc -dumpversion) in
3621             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3622         esac
3623     fi
3624
3625 elif enabled ppc; then
3626
3627     enable local_aligned_8 local_aligned_16
3628
3629     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3630     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3631     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3632     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3633
3634     # AltiVec flags: The FSF version of GCC differs from the Apple version
3635     if enabled altivec; then
3636         nogas=warn
3637         check_cflags -maltivec -mabi=altivec &&
3638         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3639         check_cflags -faltivec
3640
3641         # check if our compiler supports Motorola AltiVec C API
3642         check_cc <<EOF || disable altivec
3643 $inc_altivec_h
3644 int main(void) {
3645     vector signed int v1 = (vector signed int) { 0 };
3646     vector signed int v2 = (vector signed int) { 1 };
3647     v1 = vec_add(v1, v2);
3648     return 0;
3649 }
3650 EOF
3651
3652         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3653     fi
3654
3655 elif enabled sparc; then
3656
3657     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3658
3659 elif enabled x86; then
3660
3661     check_builtin rdtsc    intrin.h   "__rdtsc()"
3662     check_builtin mm_empty mmintrin.h "_mm_empty()"
3663
3664     enable local_aligned_8 local_aligned_16
3665
3666     # check whether EBP is available on x86
3667     # As 'i' is stored on the stack, this program will crash
3668     # if the base pointer is used to access it because the
3669     # base pointer is cleared in the inline assembly code.
3670     check_exec_crash <<EOF && enable ebp_available
3671 volatile int i=0;
3672 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3673 return i;
3674 EOF
3675
3676     # check whether EBX is available on x86
3677     check_inline_asm ebx_available '""::"b"(0)' &&
3678         check_inline_asm ebx_available '"":::"%ebx"'
3679
3680     # check whether xmm clobbers are supported
3681     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3682
3683     # check whether binutils is new enough to compile SSSE3/MMXEXT
3684     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3685     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3686
3687     if ! disabled_any asm mmx yasm; then
3688         if check_cmd $yasmexe --version; then
3689             enabled x86_64 && yasm_extra="-m amd64"
3690             yasm_debug="-g dwarf2"
3691         elif check_cmd nasm -v; then
3692             yasmexe=nasm
3693             yasm_debug="-g -F dwarf"
3694             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3695         fi
3696
3697         YASMFLAGS="-f $objformat $yasm_extra"
3698         enabled pic               && append YASMFLAGS "-DPIC"
3699         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3700         case "$objformat" in
3701             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3702         esac
3703
3704         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3705             die "yasm not found, use --disable-yasm for a crippled build"
3706         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3707         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3708         check_yasm "CPU amdnop" && enable cpunop
3709     fi
3710
3711     case "$cpu" in
3712         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3713             disable fast_clz
3714         ;;
3715     esac
3716
3717 fi
3718
3719 if enabled asm; then
3720     as=${gas:=$as}
3721     check_as <<EOF && enable gnu_as || \
3722         $nogas "GNU assembler not found, install gas-preprocessor"
3723 .macro m n
3724 \n: .int 0
3725 .endm
3726 m x
3727 EOF
3728 fi
3729
3730 check_ldflags -Wl,--as-needed
3731
3732 if check_func dlopen; then
3733     ldl=
3734 elif check_func dlopen -ldl; then
3735     ldl=-ldl
3736 fi
3737
3738 if ! disabled network; then
3739     check_type "sys/types.h sys/socket.h" socklen_t
3740     check_type netdb.h "struct addrinfo"
3741     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3742     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3743     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3744     check_type netinet/in.h "struct sockaddr_in6"
3745     check_type poll.h "struct pollfd"
3746     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3747     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3748     check_type netinet/sctp.h "struct sctp_event_subscribe"
3749     check_func getaddrinfo $network_extralibs
3750     check_func getservbyport $network_extralibs
3751     # Prefer arpa/inet.h over winsock2
3752     if check_header arpa/inet.h ; then
3753         check_func closesocket
3754     elif check_header winsock2.h ; then
3755         check_func_headers winsock2.h closesocket -lws2 &&
3756             network_extralibs="-lws2" ||
3757         { check_func_headers winsock2.h closesocket -lws2_32 &&
3758             network_extralibs="-lws2_32"; }
3759         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3760         check_type ws2tcpip.h socklen_t
3761         check_type ws2tcpip.h "struct addrinfo"
3762         check_type ws2tcpip.h "struct group_source_req"
3763         check_type ws2tcpip.h "struct ip_mreq_source"
3764         check_type ws2tcpip.h "struct ipv6_mreq"
3765         check_type winsock2.h "struct pollfd"
3766         check_type ws2tcpip.h "struct sockaddr_in6"
3767         check_type ws2tcpip.h "struct sockaddr_storage"
3768         check_struct winsock2.h "struct sockaddr" sa_len
3769     else
3770         disable network
3771     fi
3772 fi
3773
3774 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3775 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3776
3777 check_func  access
3778 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3779 check_func  fcntl
3780 check_func  fork
3781 check_func  gethrtime
3782 check_func  getopt
3783 check_func  getrusage
3784 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3785 check_func  gettimeofday
3786 check_func  inet_aton $network_extralibs
3787 check_func  isatty
3788 check_func  localtime_r
3789 check_func  ${malloc_prefix}memalign            && enable memalign
3790 check_func  mkstemp
3791 check_func  mmap
3792 check_func  mprotect
3793 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3794 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3795 check_func  setrlimit
3796 check_func  strerror_r
3797 check_func  sched_getaffinity
3798 check_func  sysconf
3799 check_func  sysctl
3800 check_func  usleep
3801 check_func_headers conio.h kbhit
3802 check_func_headers windows.h PeekNamedPipe
3803 check_func_headers io.h setmode
3804 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3805 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3806 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3807 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3808 check_func_headers windows.h GetProcessAffinityMask
3809 check_func_headers windows.h GetProcessTimes
3810 check_func_headers windows.h GetSystemTimeAsFileTime
3811 check_func_headers windows.h MapViewOfFile
3812 check_func_headers windows.h SetConsoleTextAttribute
3813 check_func_headers windows.h Sleep
3814 check_func_headers windows.h VirtualAlloc
3815 check_func_headers glob.h glob
3816
3817 check_header direct.h
3818 check_header dlfcn.h
3819 check_header dxva.h
3820 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3821 check_header io.h
3822 check_header libcrystalhd/libcrystalhd_if.h
3823 check_header malloc.h
3824 check_header poll.h
3825 check_header sys/mman.h
3826 check_header sys/param.h
3827 check_header sys/resource.h
3828 check_header sys/select.h
3829 check_header sys/time.h
3830 check_header termios.h
3831 check_header unistd.h
3832 check_header vdpau/vdpau.h
3833 check_header vdpau/vdpau_x11.h
3834 check_header VideoDecodeAcceleration/VDADecoder.h
3835 check_header windows.h
3836 check_header X11/extensions/XvMClib.h
3837 check_header asm/types.h
3838
3839 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3840 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3841
3842 if ! disabled w32threads && ! enabled pthreads; then
3843     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3844 fi
3845
3846 # check for some common methods of building with pthread support
3847 # do this before the optional library checks as some of them require pthreads
3848 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3849     enable pthreads
3850     if check_func pthread_create; then
3851         :
3852     elif check_func pthread_create -pthread; then
3853         add_cflags -pthread
3854         add_extralibs -pthread
3855     elif check_func pthread_create -pthreads; then
3856         add_cflags -pthreads
3857         add_extralibs -pthreads
3858     elif check_func pthread_create -lpthreadGC2; then
3859         add_extralibs -lpthreadGC2
3860     elif ! check_lib pthread.h pthread_create -lpthread; then
3861         disable pthreads
3862     fi
3863 fi
3864
3865 for thread in $THREADS_LIST; do
3866     if enabled $thread; then
3867         test -n "$thread_type" &&
3868             die "ERROR: Only one thread type must be selected." ||
3869             thread_type="$thread"
3870     fi
3871 done
3872
3873 if enabled pthreads; then
3874   check_func pthread_cancel
3875 fi
3876
3877 check_lib math.h sin -lm && LIBM="-lm"
3878 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3879
3880 atan2f_args=2
3881 ldexpf_args=2
3882 powf_args=2
3883
3884 for func in $MATH_FUNCS; do
3885     eval check_mathfunc $func \${${func}_args:-1}
3886 done
3887
3888 # these are off by default, so fail if requested and not available
3889 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3890 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3891 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3892 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3893 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3894 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3895 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3896 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3897 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3898                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3899                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
3900 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3901 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3902 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3903 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"
3904 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
3905 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3906 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3907                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3908                         done || die "ERROR: libgsm not found"; }
3909 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3910 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3911 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3912 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3913 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3914 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3915 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3916 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
3917                          check_lib openjpeg.h opj_version -lopenjpeg ||
3918                          die "ERROR: libopenjpeg not found"; }
3919 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3920 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3921 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3922 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3923 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
3924 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3925 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3926     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3927     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3928 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3929 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
3930                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
3931                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
3932 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3933 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3934 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3935 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3936 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3937 enabled libvpx     && {
3938     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3939                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3940     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 ||
3941                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
3942     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3943     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3944 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3945                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3946                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
3947 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3948 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3949 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3950                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3951                         die "ERROR: openal not found"; } &&
3952                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3953                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
3954 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3955                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3956                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3957                         die "ERROR: openssl not found"; }
3958
3959 if enabled gnutls; then
3960     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3961     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3962 fi
3963
3964 # libdc1394 check
3965 if enabled libdc1394; then
3966     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3967         enable libdc1394_2; } ||
3968     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3969         enable libdc1394_1; } ||
3970     die "ERROR: No version of libdc1394 found "
3971 fi
3972
3973 SDL_CONFIG="${cross_prefix}sdl-config"
3974 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3975     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3976     enable sdl &&
3977     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3978 else
3979   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3980     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3981     sdl_libs=$("${SDL_CONFIG}" --libs)
3982     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3983     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3984     enable sdl &&
3985     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3986   fi
3987 fi
3988 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3989
3990 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3991 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3992 perl --version > /dev/null 2>&1 && enable perl || disable perl
3993 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3994 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
3995
3996 check_header linux/fb.h
3997 check_header linux/videodev.h
3998 check_header linux/videodev2.h
3999 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4000
4001 check_header sys/videoio.h
4002
4003 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4004 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4005 # w32api 3.12 had it defined wrong
4006 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4007
4008 check_type "dshow.h" IBaseFilter
4009
4010 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4011 { check_header dev/bktr/ioctl_meteor.h &&
4012   check_header dev/bktr/ioctl_bt848.h; } ||
4013 { check_header machine/ioctl_meteor.h &&
4014   check_header machine/ioctl_bt848.h; } ||
4015 { check_header dev/video/meteor/ioctl_meteor.h &&
4016   check_header dev/video/bktr/ioctl_bt848.h; } ||
4017 check_header dev/ic/bt8xx.h
4018
4019 check_header sndio.h
4020 if check_struct sys/soundcard.h audio_buf_info bytes; then
4021     enable_safe sys/soundcard.h
4022 else
4023     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4024     #include <sys/soundcard.h>
4025     audio_buf_info abc;
4026 EOF
4027 fi
4028 check_header soundcard.h
4029
4030 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4031
4032 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4033     check_func jack_port_get_latency_range -ljack
4034
4035 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4036
4037 if enabled libcdio; then
4038     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
4039 fi
4040
4041 enabled x11grab                                           &&
4042 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4043 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4044 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4045
4046 enabled vaapi &&
4047     check_lib va/va.h vaInitialize -lva ||
4048     disable vaapi
4049
4050 enabled vdpau &&
4051     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4052     disable vdpau
4053
4054 # Funny iconv installations are not unusual, so check it after all flags have been set
4055 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4056
4057 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4058 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
4059 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"
4060
4061 # add some useful compiler flags if supported
4062 check_cflags -Wdeclaration-after-statement
4063 check_cflags -Wall
4064 check_cflags -Wno-parentheses
4065 check_cflags -Wno-switch
4066 check_cflags -Wno-format-zero-length
4067 check_cflags -Wdisabled-optimization
4068 check_cflags -Wpointer-arith
4069 check_cflags -Wredundant-decls
4070 check_cflags -Wno-pointer-sign
4071 check_cflags -Wwrite-strings
4072 check_cflags -Wtype-limits
4073 check_cflags -Wundef
4074 check_cflags -Wmissing-prototypes
4075 check_cflags -Wno-pointer-to-int-cast
4076 check_cflags -Wstrict-prototypes
4077 enabled extra_warnings && check_cflags -Winline
4078
4079 # add some linker flags
4080 check_ldflags -Wl,--warn-common
4081 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4082 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4083
4084 enabled xmm_clobber_test &&
4085     check_ldflags -Wl,--wrap,avcodec_open2              \
4086                   -Wl,--wrap,avcodec_decode_audio4      \
4087                   -Wl,--wrap,avcodec_decode_video2      \
4088                   -Wl,--wrap,avcodec_decode_subtitle2   \
4089                   -Wl,--wrap,avcodec_encode_audio2      \
4090                   -Wl,--wrap,avcodec_encode_video       \
4091                   -Wl,--wrap,avcodec_encode_subtitle    \
4092                   -Wl,--wrap,sws_scale ||
4093     disable xmm_clobber_test
4094
4095 echo "X{};" > $TMPV
4096 if test_ldflags -Wl,--version-script,$TMPV; then
4097     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4098     check_cc <<EOF && enable symver_asm_label
4099 void ff_foo(void) __asm__ ("av_foo@VERSION");
4100 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4101 EOF
4102     check_cc <<EOF && enable symver_gnu_asm
4103 __asm__(".symver ff_foo,av_foo@VERSION");
4104 void ff_foo(void) {}
4105 EOF
4106 fi
4107
4108 if [ -z "$optflags" ]; then
4109     if enabled small; then
4110         optflags=$cflags_size
4111     elif enabled optimizations; then
4112         optflags=$cflags_speed
4113     else
4114         optflags=$cflags_noopt
4115     fi
4116 fi
4117
4118 check_optflags(){
4119     check_cflags "$@"
4120     enabled lto && check_ldflags "$@"
4121 }
4122
4123
4124 if enabled lto; then
4125     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4126     check_cflags  -flto
4127     check_ldflags -flto $cpuflags
4128 fi
4129
4130 check_optflags $optflags
4131 check_optflags -fno-math-errno
4132 check_optflags -fno-signed-zeros
4133
4134 enabled ftrapv && check_cflags -ftrapv
4135
4136 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4137 int x;
4138 EOF
4139
4140
4141 if enabled icc; then
4142     # Just warnings, no remarks
4143     check_cflags -w1
4144     # -wd: Disable following warnings
4145     # 144, 167, 556: -Wno-pointer-sign
4146     # 188: enumerated type mixed with another type
4147     # 1292: attribute "foo" ignored
4148     # 1419: external declaration in primary source file
4149     # 10006: ignoring unknown option -fno-signed-zeros
4150     # 10148: ignoring unknown option -Wno-parentheses
4151     # 10156: ignoring option '-W'; no argument required
4152     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4153     # 11030: Warning unknown option --as-needed
4154     # 10156: ignoring option '-export'; no argument required
4155     check_ldflags -wd10156,11030
4156     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4157     enable ebp_available
4158     if enabled x86_32; then
4159         icc_version=$($cc -dumpversion)
4160         test ${icc_version%%.*} -ge 11 &&
4161             check_cflags -falign-stack=maintain-16-byte ||
4162             disable aligned_stack
4163     fi
4164 elif enabled ccc; then
4165     # disable some annoying warnings
4166     add_cflags -msg_disable bitnotint
4167     add_cflags -msg_disable mixfuncvoid
4168     add_cflags -msg_disable nonstandcast
4169     add_cflags -msg_disable unsupieee
4170 elif enabled gcc; then
4171     check_optflags -fno-tree-vectorize
4172     check_cflags -Werror=implicit-function-declaration
4173     check_cflags -Werror=missing-prototypes
4174     check_cflags -Werror=return-type
4175     check_cflags -Werror=vla
4176 elif enabled llvm_gcc; then
4177     check_cflags -mllvm -stack-alignment=16
4178 elif enabled clang; then
4179     check_cflags -mllvm -stack-alignment=16
4180     check_cflags -Qunused-arguments
4181     check_cflags -Werror=implicit-function-declaration
4182     check_cflags -Werror=missing-prototypes
4183     check_cflags -Werror=return-type
4184 elif enabled armcc; then
4185     # 2523: use of inline assembler is deprecated
4186     add_cflags -W${armcc_opt},--diag_suppress=2523
4187     add_cflags -W${armcc_opt},--diag_suppress=1207
4188     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4189     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4190     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4191     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4192 elif enabled tms470; then
4193     add_cflags -pds=824 -pds=837
4194 elif enabled pathscale; then
4195     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4196 elif enabled msvc; then
4197     enabled x86_32 && disable aligned_stack
4198 fi
4199
4200 case $target_os in
4201     osf1)
4202         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4203     ;;
4204     plan9)
4205         add_cppflags -Dmain=plan9_main
4206     ;;
4207 esac
4208
4209 enabled_any $THREADS_LIST      && enable threads
4210
4211 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4212
4213 check_deps $CONFIG_LIST       \
4214            $CONFIG_EXTRA      \
4215            $HAVE_LIST         \
4216            $ALL_COMPONENTS    \
4217
4218
4219 if test $target_os = "haiku"; then
4220     disable memalign
4221     disable posix_memalign
4222 fi
4223
4224 ! enabled_any memalign posix_memalign aligned_malloc &&
4225     enabled_any $need_memalign && enable memalign_hack
4226
4227 # add_dep lib dep
4228 # -> enable ${lib}_deps_${dep}
4229 # -> add $dep to ${lib}_deps only once
4230 add_dep() {
4231     lib=$1
4232     dep=$2
4233     enabled "${lib}_deps_${dep}" && return 0
4234     enable  "${lib}_deps_${dep}"
4235     prepend "${lib}_deps" $dep
4236 }
4237
4238 # merge deps lib components
4239 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4240 merge_deps() {
4241     lib=$1
4242     shift
4243     for comp in $*; do
4244         enabled $comp || continue
4245         eval "dep=\"\$${comp}_deps\""
4246         for d in $dep; do
4247             add_dep $lib $d
4248         done
4249     done
4250 }
4251
4252 merge_deps libavfilter $FILTER_LIST
4253
4254 echo "install prefix            $prefix"
4255 echo "source path               $source_path"
4256 echo "C compiler                $cc"
4257 echo "ARCH                      $arch ($cpu)"
4258 if test "$build_suffix" != ""; then
4259     echo "build suffix              $build_suffix"
4260 fi
4261 if test "$progs_suffix" != ""; then
4262     echo "progs suffix              $progs_suffix"
4263 fi
4264 if test "$extra_version" != ""; then
4265     echo "version string suffix     $extra_version"
4266 fi
4267 echo "big-endian                ${bigendian-no}"
4268 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4269 if enabled x86; then
4270     echo "${yasmexe}                      ${yasm-no}"
4271     echo "MMX enabled               ${mmx-no}"
4272     echo "MMXEXT enabled            ${mmxext-no}"
4273     echo "3DNow! enabled            ${amd3dnow-no}"
4274     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4275     echo "SSE enabled               ${sse-no}"
4276     echo "SSSE3 enabled             ${ssse3-no}"
4277     echo "AVX enabled               ${avx-no}"
4278     echo "FMA4 enabled              ${fma4-no}"
4279     echo "CMOV enabled              ${cmov-no}"
4280     echo "CMOV is fast              ${fast_cmov-no}"
4281     echo "EBX available             ${ebx_available-no}"
4282     echo "EBP available             ${ebp_available-no}"
4283 fi
4284 if enabled arm; then
4285     echo "ARMv5TE enabled           ${armv5te-no}"
4286     echo "ARMv6 enabled             ${armv6-no}"
4287     echo "ARMv6T2 enabled           ${armv6t2-no}"
4288     echo "VFP enabled               ${vfp-no}"
4289     echo "NEON enabled              ${neon-no}"
4290     echo "THUMB enabled             ${thumb-no}"
4291 fi
4292 if enabled mips; then
4293     echo "MIPS FPU enabled          ${mipsfpu-no}"
4294     echo "MIPS32R2 enabled          ${mips32r2-no}"
4295     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4296     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4297 fi
4298 if enabled ppc; then
4299     echo "AltiVec enabled           ${altivec-no}"
4300     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4301     echo "dcbzl available           ${dcbzl-no}"
4302 fi
4303 if enabled sparc; then
4304     echo "VIS enabled               ${vis-no}"
4305 fi
4306 echo "debug symbols             ${debug-no}"
4307 echo "strip symbols             ${stripping-no}"
4308 echo "optimize for size         ${small-no}"
4309 echo "optimizations             ${optimizations-no}"
4310 echo "static                    ${static-no}"
4311 echo "shared                    ${shared-no}"
4312 echo "postprocessing support    ${postproc-no}"
4313 echo "new filter support        ${avfilter-no}"
4314 echo "network support           ${network-no}"
4315 echo "threading support         ${thread_type-no}"
4316 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4317 echo "SDL support               ${sdl-no}"
4318 echo "texi2html enabled         ${texi2html-no}"
4319 echo "perl enabled              ${perl-no}"
4320 echo "pod2man enabled           ${pod2man-no}"
4321 echo "makeinfo enabled          ${makeinfo-no}"
4322 test -n "$random_seed" &&
4323     echo "random seed               ${random_seed}"
4324 echo
4325
4326 echo "External libraries:"
4327 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4328 echo
4329
4330 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4331     echo "Enabled ${type}s:"
4332     eval list=\$$(toupper $type)_LIST
4333     print_enabled '_*' $list | print_3_columns
4334     echo
4335 done
4336
4337 license="LGPL version 2.1 or later"
4338 if enabled nonfree; then
4339     license="nonfree and unredistributable"
4340 elif enabled gplv3; then
4341     license="GPL version 3 or later"
4342 elif enabled lgplv3; then
4343     license="LGPL version 3 or later"
4344 elif enabled gpl; then
4345     license="GPL version 2 or later"
4346 fi
4347
4348 echo "License: $license"
4349
4350 echo "Creating config.mak and config.h..."
4351
4352 test -e Makefile || $ln_s "$source_path/Makefile" .
4353
4354 enabled stripping || strip="echo skipping strip"
4355
4356 config_files="$TMPH config.mak"
4357
4358 cat > config.mak <<EOF
4359 # Automatically generated by configure - do not modify!
4360 ifndef FFMPEG_CONFIG_MAK
4361 FFMPEG_CONFIG_MAK=1
4362 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4363 prefix=$prefix
4364 LIBDIR=\$(DESTDIR)$libdir
4365 SHLIBDIR=\$(DESTDIR)$shlibdir
4366 INCDIR=\$(DESTDIR)$incdir
4367 BINDIR=\$(DESTDIR)$bindir
4368 DATADIR=\$(DESTDIR)$datadir
4369 MANDIR=\$(DESTDIR)$mandir
4370 SRC_PATH=$source_path
4371 ifndef MAIN_MAKEFILE
4372 SRC_PATH:=\$(SRC_PATH:.%=..%)
4373 endif
4374 CC_IDENT=$cc_ident
4375 ARCH=$arch
4376 CC=$cc
4377 CXX=$cxx
4378 AS=$as
4379 LD=$ld
4380 DEPCC=$dep_cc
4381 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4382 DEPAS=$as
4383 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4384 YASM=$yasmexe
4385 DEPYASM=$yasmexe
4386 AR=$ar
4387 ARFLAGS=$arflags
4388 AR_O=$ar_o
4389 RANLIB=$ranlib
4390 CP=cp -p
4391 LN_S=$ln_s
4392 STRIP=$strip
4393 CPPFLAGS=$CPPFLAGS
4394 CFLAGS=$CFLAGS
4395 CXXFLAGS=$CXXFLAGS
4396 ASFLAGS=$ASFLAGS
4397 AS_C=$AS_C
4398 AS_O=$AS_O
4399 CC_C=$CC_C
4400 CC_E=$CC_E
4401 CC_O=$CC_O
4402 CXX_C=$CXX_C
4403 CXX_O=$CXX_O
4404 LD_O=$LD_O
4405 LD_LIB=$LD_LIB
4406 LD_PATH=$LD_PATH
4407 DLLTOOL=$dlltool
4408 LDFLAGS=$LDFLAGS
4409 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4410 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4411 YASMFLAGS=$YASMFLAGS
4412 BUILDSUF=$build_suffix
4413 PROGSSUF=$progs_suffix
4414 FULLNAME=$FULLNAME
4415 LIBPREF=$LIBPREF
4416 LIBSUF=$LIBSUF
4417 LIBNAME=$LIBNAME
4418 SLIBPREF=$SLIBPREF
4419 SLIBSUF=$SLIBSUF
4420 EXESUF=$EXESUF
4421 EXTRA_VERSION=$extra_version
4422 CCDEP=$CCDEP
4423 CXXDEP=$CXXDEP
4424 CCDEP_FLAGS=$CCDEP_FLAGS
4425 ASDEP=$ASDEP
4426 ASDEP_FLAGS=$ASDEP_FLAGS
4427 CC_DEPFLAGS=$CC_DEPFLAGS
4428 AS_DEPFLAGS=$AS_DEPFLAGS
4429 HOSTCC=$host_cc
4430 HOSTLD=$host_ld
4431 HOSTCFLAGS=$host_cflags
4432 HOSTCPPFLAGS=$host_cppflags
4433 HOSTEXESUF=$HOSTEXESUF
4434 HOSTLDFLAGS=$host_ldflags
4435 HOSTLIBS=$host_libs
4436 DEPHOSTCC=$host_cc
4437 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4438 HOSTCCDEP=$HOSTCCDEP
4439 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4440 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4441 HOSTCC_C=$HOSTCC_C
4442 HOSTCC_O=$HOSTCC_O
4443 HOSTLD_O=$HOSTLD_O
4444 TARGET_EXEC=$target_exec
4445 TARGET_PATH=$target_path
4446 LIBS-ffplay=$sdl_libs
4447 CFLAGS-ffplay=$sdl_cflags
4448 ZLIB=$($ldflags_filter -lz)
4449 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4450 EXTRALIBS=$extralibs
4451 COMPAT_OBJS=$compat_objs
4452 EXEOBJS=$exeobjs
4453 INSTALL=$install
4454 LIBTARGET=${LIBTARGET}
4455 SLIBNAME=${SLIBNAME}
4456 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4457 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4458 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4459 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4460 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4461 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4462 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4463 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4464 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4465 NOREDZONE_FLAGS=$noredzone_flags
4466 EOF
4467
4468 get_version(){
4469     lcname=lib${1}
4470     name=$(toupper $lcname)
4471     file=$source_path/$lcname/version.h
4472     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4473     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4474     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4475     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4476     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4477 }
4478
4479 map 'get_version $v' $LIBRARY_LIST
4480
4481 cat > $TMPH <<EOF
4482 /* Automatically generated by configure - do not modify! */
4483 #ifndef FFMPEG_CONFIG_H
4484 #define FFMPEG_CONFIG_H
4485 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4486 #define FFMPEG_LICENSE "$(c_escape $license)"
4487 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4488 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4489 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4490 #define av_restrict $_restrict
4491 #define EXTERN_PREFIX "${extern_prefix}"
4492 #define EXTERN_ASM ${extern_prefix}
4493 #define SLIBSUF "$SLIBSUF"
4494 #define HAVE_MMX2 HAVE_MMXEXT
4495 EOF
4496
4497 test -n "$assert_level" &&
4498     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4499
4500 test -n "$malloc_prefix" &&
4501     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4502
4503 if enabled yasm; then
4504     append config_files $TMPASM
4505     printf '' >$TMPASM
4506 fi
4507
4508 print_config ARCH_   "$config_files" $ARCH_LIST
4509 print_config HAVE_   "$config_files" $HAVE_LIST
4510 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4511                                      $CONFIG_EXTRA      \
4512                                      $ALL_COMPONENTS    \
4513
4514 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4515 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4516
4517 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4518 cp_if_changed $TMPH config.h
4519 touch .config
4520
4521 enabled yasm && cp_if_changed $TMPASM config.asm
4522
4523 cat > $TMPH <<EOF
4524 /* Generated by ffconf */
4525 #ifndef AVUTIL_AVCONFIG_H
4526 #define AVUTIL_AVCONFIG_H
4527 EOF
4528
4529 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4530
4531 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4532
4533 cp_if_changed $TMPH libavutil/avconfig.h
4534
4535 if test -n "$WARNINGS"; then
4536     printf "\n$WARNINGS"
4537     enabled fatal_warnings && exit 1
4538 fi
4539
4540 # build pkg-config files
4541
4542 pkgconfig_generate(){
4543     name=$1
4544     shortname=${name#lib}${build_suffix}
4545     comment=$2
4546     version=$3
4547     libs=$4
4548     requires=$5
4549     enabled ${name#lib} || return 0
4550     mkdir -p $name
4551     cat <<EOF > $name/$name${build_suffix}.pc
4552 prefix=$prefix
4553 exec_prefix=\${prefix}
4554 libdir=$libdir
4555 includedir=$incdir
4556
4557 Name: $name
4558 Description: $comment
4559 Version: $version
4560 Requires: $(enabled shared || echo $requires)
4561 Requires.private: $(enabled shared && echo $requires)
4562 Conflicts:
4563 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4564 Libs.private: $(enabled shared && echo $libs)
4565 Cflags: -I\${includedir}
4566 EOF
4567
4568 mkdir -p doc/examples/pc-uninstalled
4569 includedir=${source_path}
4570 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4571     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4572 prefix=
4573 exec_prefix=
4574 libdir=\${pcfiledir}/../../../$name
4575 includedir=${includedir}
4576
4577 Name: $name
4578 Description: $comment
4579 Version: $version
4580 Requires: $requires
4581 Conflicts:
4582 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4583 Cflags: -I\${includedir}
4584 EOF
4585 }
4586
4587 libavfilter_pc_deps="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4588 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4589 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4590 enabled libavfilter_deps_avresample && prepend libavfilter_pc_deps "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4591 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4592 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4593 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4594 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4595
4596 libavdevice_pc_deps="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4597 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4598
4599 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4600 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4601 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4602 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4603 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4604 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4605 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4606 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4607 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4608
4609 fix_ffmpeg_remote(){
4610     git_remote_from=$1
4611     git_remote_to=$2
4612     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4613     if [ "$fixme_remote" != "" ]; then
4614         echolog "
4615 Outdated domain in git config, the official domain for ffmpeg git is since
4616 November 2011, source.ffmpeg.org, both the old and the new point to the same
4617 repository and server. To update it enter the following commands:
4618 "
4619         for remote in $fixme_remote; do
4620             echolog "git remote set-url $remote $git_remote_to"
4621         done
4622     fi
4623 }
4624
4625 if test -f "$source_path/.git/config"; then
4626     remote_from=git.videolan.org
4627     remote_to=source.ffmpeg.org
4628     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4629     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4630 fi