Merge commit '50ec1db62d977b6e864f315a53c1c580a6d7efa4'
[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-error-resilience disable error resilience code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --disable-dxva2          disable DXVA2 code [autodetect]
145   --disable-vaapi          disable VAAPI code [autodetect]
146   --enable-vda             enable VDA code
147   --disable-vdpau          disable VDPAU code [autodetect]
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --disable-bzlib          disable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
192   --disable-iconv          disable iconv [autodetect]
193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
194   --enable-libass          enable libass subtitles rendering [no]
195   --enable-libbluray       enable BluRay reading using libbluray [no]
196   --enable-libcaca         enable textual display using libcaca
197   --enable-libcelt         enable CELT decoding via libcelt [no]
198   --enable-libcdio         enable audio CD grabbing with libcdio
199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
200                            and libraw1394 [no]
201   --enable-libfaac         enable AAC encoding via libfaac [no]
202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
204   --enable-libfreetype     enable libfreetype [no]
205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
208   --enable-libmodplug      enable ModPlug via libmodplug [no]
209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
210   --enable-libnut          enable NUT (de)muxing via libnut,
211                            native (de)muxer exists [no]
212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
214   --enable-libopencv       enable video filtering via libopencv [no]
215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
216   --enable-libopus         enable Opus decoding via libopus [no]
217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
218   --enable-libquvi         enable quvi input via libquvi [no]
219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
222   --enable-libsoxr         enable Include libsoxr resampling [no]
223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
225   --enable-libtheora       enable Theora encoding via libtheora [no]
226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
229   --enable-libvidstab      enable video stabilization using vid.stab [no]
230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
233                            native implementation exists [no]
234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
235   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
236   --enable-libx264         enable H.264 encoding via x264 [no]
237   --enable-libxavs         enable AVS encoding via xavs [no]
238   --enable-libxvid         enable Xvid encoding via xvidcore,
239                            native MPEG-4/Xvid encoder exists [no]
240   --enable-libzmq          enable message passing via libzmq [no]
241   --enable-openal          enable OpenAL 1.1 capture support [no]
242   --enable-opencl          enable OpenCL code
243   --enable-openssl         enable openssl [no]
244   --enable-x11grab         enable X11 grabbing [no]
245   --disable-zlib           disable zlib [autodetect]
246
247 Advanced options (experts only):
248   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
249   --enable-cross-compile   assume a cross-compiler is used
250   --sysroot=PATH           root of cross-build tree
251   --sysinclude=PATH        location of cross-build system headers
252   --target-os=OS           compiler targets OS [$target_os]
253   --target-exec=CMD        command to run executables on target
254   --target-path=DIR        path to view of build directory on target
255   --target-samples=DIR     path to samples directory on target
256   --toolchain=NAME         set tool defaults according to NAME
257   --nm=NM                  use nm tool NM [$nm_default]
258   --ar=AR                  use archive tool AR [$ar_default]
259   --as=AS                  use assembler AS [$as_default]
260   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
261   --cc=CC                  use C compiler CC [$cc_default]
262   --cxx=CXX                use C compiler CXX [$cxx_default]
263   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
264   --ld=LD                  use linker LD [$ld_default]
265   --host-cc=HOSTCC         use host C compiler HOSTCC
266   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
267   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
268   --host-ld=HOSTLD         use host linker HOSTLD
269   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
270   --host-libs=HLIBS        use libs HLIBS when linking for host
271   --host-os=OS             compiler host OS [$target_os]
272   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
273   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
274   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
275   --extra-libs=ELIBS       add ELIBS [$ELIBS]
276   --extra-version=STRING   version string suffix []
277   --optflags=OPTFLAGS      override optimization-related compiler flags
278   --build-suffix=SUFFIX    library name suffix []
279   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
280   --progs-suffix=SUFFIX    program name suffix []
281   --arch=ARCH              select architecture [$arch]
282   --cpu=CPU                select the minimum required CPU (affects
283                            instruction selection, may crash on older CPUs)
284   --enable-pic             build position-independent code
285   --enable-sram            allow use of on-chip SRAM
286   --enable-thumb           compile for Thumb instruction set
287   --disable-symver         disable symbol versioning
288   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
289   --disable-safe-bitstream-reader
290                            disable buffer boundary checking in bitreaders
291                            (faster, but may crash)
292   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
293   --enable-lto             use link-time optimization
294
295 Optimization options (experts only):
296   --disable-asm            disable all assembler optimizations
297   --disable-altivec        disable AltiVec optimizations
298   --disable-amd3dnow       disable 3DNow! optimizations
299   --disable-amd3dnowext    disable 3DNow! extended optimizations
300   --disable-mmx            disable MMX optimizations
301   --disable-mmxext         disable MMXEXT optimizations
302   --disable-sse            disable SSE optimizations
303   --disable-sse2           disable SSE2 optimizations
304   --disable-sse3           disable SSE3 optimizations
305   --disable-ssse3          disable SSSE3 optimizations
306   --disable-sse4           disable SSE4 optimizations
307   --disable-sse42          disable SSE4.2 optimizations
308   --disable-avx            disable AVX optimizations
309   --disable-fma4           disable FMA4 optimizations
310   --disable-armv5te        disable armv5te optimizations
311   --disable-armv6          disable armv6 optimizations
312   --disable-armv6t2        disable armv6t2 optimizations
313   --disable-vfp            disable VFP optimizations
314   --disable-neon           disable NEON optimizations
315   --disable-vis            disable VIS optimizations
316   --disable-inline-asm     disable use of inline assembler
317   --disable-yasm           disable use of yasm assembler
318   --disable-mips32r2       disable MIPS32R2 optimizations
319   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
320   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
321   --disable-mipsfpu        disable floating point MIPS optimizations
322   --disable-fast-unaligned consider unaligned accesses slow
323
324 Developer options (useful when working on FFmpeg itself):
325   --disable-debug          disable debugging symbols
326   --enable-debug=LEVEL     set the debug level [$debuglevel]
327   --disable-optimizations  disable compiler optimizations
328   --enable-extra-warnings  enable more compiler warnings
329   --disable-stripping      disable stripping of executables and shared libraries
330   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
331                            2 causes a slowdown at runtime.
332   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
333   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
334                            leaks and errors, using the specified valgrind binary.
335                            Cannot be combined with --target-exec
336   --enable-ftrapv          Trap arithmetic overflows
337   --samples=PATH           location of test samples for FATE, if not set use
338                            \$FATE_SAMPLES at make invocation time.
339   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
340                            should be used only for debugging purposes)
341   --enable-random          randomly enable/disable components
342   --disable-random
343   --enable-random=LIST     randomly enable/disable specific components or
344   --disable-random=LIST    component groups. LIST is a comma-separated list
345                            of NAME[:PROB] entries where NAME is a component
346                            (group) and PROB the probability associated with
347                            NAME (default 0.5).
348   --random-seed=VALUE      seed value for --enable/disable-random
349
350 NOTE: Object files are built at the place where configure is launched.
351 EOF
352   exit 0
353 }
354
355 quotes='""'
356
357 log(){
358     echo "$@" >> $logfile
359 }
360
361 log_file(){
362     log BEGIN $1
363     pr -n -t $1 >> $logfile
364     log END $1
365 }
366
367 echolog(){
368     log "$@"
369     echo "$@"
370 }
371
372 warn(){
373     log "WARNING: $*"
374     WARNINGS="${WARNINGS}WARNING: $*\n"
375 }
376
377 die(){
378     echolog "$@"
379     cat <<EOF
380
381 If you think configure made a mistake, make sure you are using the latest
382 version from Git.  If the latest version fails, report the problem to the
383 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
384 EOF
385     if disabled logging; then
386         cat <<EOF
387 Rerun configure with logging enabled (do not use --disable-logging), and
388 include the log this produces with your report.
389 EOF
390     else
391         cat <<EOF
392 Include the log file "$logfile" produced by configure as this will help
393 solving the problem.
394 EOF
395     fi
396     exit 1
397 }
398
399 # Avoid locale weirdness, besides we really just want to translate ASCII.
400 toupper(){
401     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
402 }
403
404 tolower(){
405     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
406 }
407
408 c_escape(){
409     echo "$*" | sed 's/["\\]/\\\0/g'
410 }
411
412 sh_quote(){
413     v=$(echo "$1" | sed "s/'/'\\\\''/g")
414     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
415     echo "$v"
416 }
417
418 cleanws(){
419     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
420 }
421
422 filter(){
423     pat=$1
424     shift
425     for v; do
426         eval "case $v in $pat) echo $v ;; esac"
427     done
428 }
429
430 filter_out(){
431     pat=$1
432     shift
433     for v; do
434         eval "case $v in $pat) ;; *) echo $v ;; esac"
435     done
436 }
437
438 map(){
439     m=$1
440     shift
441     for v; do eval $m; done
442 }
443
444 add_suffix(){
445     suffix=$1
446     shift
447     for v; do echo ${v}${suffix}; done
448 }
449
450 set_all(){
451     value=$1
452     shift
453     for var in $*; do
454         eval $var=$value
455     done
456 }
457
458 set_weak(){
459     value=$1
460     shift
461     for var; do
462         eval : \${$var:=$value}
463     done
464 }
465
466 sanitize_var_name(){
467     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
468 }
469
470 set_safe(){
471     var=$1
472     shift
473     eval $(sanitize_var_name "$var")='$*'
474 }
475
476 get_safe(){
477     eval echo \$$(sanitize_var_name "$1")
478 }
479
480 pushvar(){
481     for pvar in $*; do
482         eval level=\${${pvar}_level:=0}
483         eval ${pvar}_${level}="\$$pvar"
484         eval ${pvar}_level=$(($level+1))
485     done
486 }
487
488 popvar(){
489     for pvar in $*; do
490         eval level=\${${pvar}_level:-0}
491         test $level = 0 && continue
492         eval level=$(($level-1))
493         eval $pvar="\${${pvar}_${level}}"
494         eval ${pvar}_level=$level
495         eval unset ${pvar}_${level}
496     done
497 }
498
499 enable(){
500     set_all yes $*
501 }
502
503 disable(){
504     set_all no $*
505 }
506
507 enable_weak(){
508     set_weak yes $*
509 }
510
511 disable_weak(){
512     set_weak no $*
513 }
514
515 enable_safe(){
516     for var; do
517         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
518     done
519 }
520
521 disable_safe(){
522     for var; do
523         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
524     done
525 }
526
527 do_enable_deep(){
528     for var; do
529         enabled $var && continue
530         eval sel="\$${var}_select"
531         eval sgs="\$${var}_suggest"
532         pushvar var sgs
533         enable_deep $sel
534         popvar sgs
535         enable_deep_weak $sgs
536         popvar var
537     done
538 }
539
540 enable_deep(){
541     do_enable_deep $*
542     enable $*
543 }
544
545 enable_deep_weak(){
546     for var; do
547         disabled $var && continue
548         pushvar var
549         do_enable_deep $var
550         popvar var
551         enable_weak $var
552     done
553 }
554
555 enabled(){
556     test "${1#!}" = "$1" && op== || op=!=
557     eval test "x\$${1#!}" $op "xyes"
558 }
559
560 disabled(){
561     test "${1#!}" = "$1" && op== || op=!=
562     eval test "x\$${1#!}" $op "xno"
563 }
564
565 enabled_all(){
566     for opt; do
567         enabled $opt || return 1
568     done
569 }
570
571 disabled_all(){
572     for opt; do
573         disabled $opt || return 1
574     done
575 }
576
577 enabled_any(){
578     for opt; do
579         enabled $opt && return 0
580     done
581 }
582
583 disabled_any(){
584     for opt; do
585         disabled $opt && return 0
586     done
587     return 1
588 }
589
590 set_default(){
591     for opt; do
592         eval : \${$opt:=\$${opt}_default}
593     done
594 }
595
596 is_in(){
597     value=$1
598     shift
599     for var in $*; do
600         [ $var = $value ] && return 0
601     done
602     return 1
603 }
604
605 do_check_deps(){
606     for cfg; do
607         cfg="${cfg#!}"
608         enabled ${cfg}_checking && die "Circular dependency for $cfg."
609         disabled ${cfg}_checking && continue
610         enable ${cfg}_checking
611         append allopts $cfg
612
613         eval dep_all="\$${cfg}_deps"
614         eval dep_any="\$${cfg}_deps_any"
615         eval dep_sel="\$${cfg}_select"
616         eval dep_sgs="\$${cfg}_suggest"
617         eval dep_ifa="\$${cfg}_if"
618         eval dep_ifn="\$${cfg}_if_any"
619
620         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
621         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
622         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
623
624         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
625         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
626         enabled_all  $dep_all || disable $cfg
627         enabled_any  $dep_any || disable $cfg
628         disabled_any $dep_sel && disable $cfg
629
630         if enabled $cfg; then
631             enable_deep $dep_sel
632             enable_deep_weak $dep_sgs
633         fi
634
635         disable ${cfg}_checking
636     done
637 }
638
639 check_deps(){
640     unset allopts
641
642     do_check_deps "$@"
643
644     for cfg in $allopts; do
645         enabled $cfg || continue
646         eval dep_extralibs="\$${cfg}_extralibs"
647         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
648     done
649 }
650
651 print_config(){
652     pfx=$1
653     files=$2
654     shift 2
655     map 'eval echo "$v \${$v:-no}"' "$@" |
656     awk "BEGIN { split(\"$files\", files) }
657         {
658             c = \"$pfx\" toupper(\$1);
659             v = \$2;
660             sub(/yes/, 1, v);
661             sub(/no/,  0, v);
662             for (f in files) {
663                 file = files[f];
664                 if (file ~ /\\.h\$/) {
665                     printf(\"#define %s %d\\n\", c, v) >>file;
666                 } else if (file ~ /\\.asm\$/) {
667                     printf(\"%%define %s %d\\n\", c, v) >>file;
668                 } else if (file ~ /\\.mak\$/) {
669                     n = -v ? \"\" : \"!\";
670                     printf(\"%s%s=yes\\n\", n, c) >>file;
671                 } else if (file ~ /\\.texi\$/) {
672                     pre = -v ? \"\" : \"@c \";
673                     yesno = \$2;
674                     c2 = tolower(c);
675                     gsub(/_/, \"-\", c2);
676                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
677                 }
678             }
679         }"
680 }
681
682 print_enabled(){
683     suf=$1
684     shift
685     for v; do
686         enabled $v && printf "%s\n" ${v%$suf};
687     done
688 }
689
690 append(){
691     var=$1
692     shift
693     eval "$var=\"\$$var $*\""
694 }
695
696 prepend(){
697     var=$1
698     shift
699     eval "$var=\"$* \$$var\""
700 }
701
702 add_cppflags(){
703     append CPPFLAGS "$@"
704 }
705
706 add_cflags(){
707     append CFLAGS $($cflags_filter "$@")
708 }
709
710 add_cxxflags(){
711     append CXXFLAGS $($cflags_filter "$@")
712 }
713
714 add_asflags(){
715     append ASFLAGS $($asflags_filter "$@")
716 }
717
718 add_ldflags(){
719     append LDFLAGS $($ldflags_filter "$@")
720 }
721
722 add_extralibs(){
723     prepend extralibs $($ldflags_filter "$@")
724 }
725
726 add_host_cppflags(){
727     append host_cppflags "$@"
728 }
729
730 add_host_cflags(){
731     append host_cflags $($host_cflags_filter "$@")
732 }
733
734 add_host_ldflags(){
735     append host_ldflags $($host_ldflags_filter "$@")
736 }
737
738 add_compat(){
739     append compat_objs $1
740     shift
741     map 'add_cppflags -D$v' "$@"
742 }
743
744 check_cmd(){
745     log "$@"
746     "$@" >> $logfile 2>&1
747 }
748
749 cc_o(){
750     eval printf '%s\\n' $CC_O
751 }
752
753 cc_e(){
754     eval printf '%s\\n' $CC_E
755 }
756
757 check_cc(){
758     log check_cc "$@"
759     cat > $TMPC
760     log_file $TMPC
761     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
762 }
763
764 check_cxx(){
765     log check_cxx "$@"
766     cat > $TMPCPP
767     log_file $TMPCPP
768     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
769 }
770
771 check_cpp(){
772     log check_cpp "$@"
773     cat > $TMPC
774     log_file $TMPC
775     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
776 }
777
778 as_o(){
779     eval printf '%s\\n' $AS_O
780 }
781
782 check_as(){
783     log check_as "$@"
784     cat > $TMPS
785     log_file $TMPS
786     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
787 }
788
789 check_inline_asm(){
790     log check_inline_asm "$@"
791     name="$1"
792     code="$2"
793     shift 2
794     disable $name
795     check_cc "$@" <<EOF && enable $name
796 void foo(void){ __asm__ volatile($code); }
797 EOF
798 }
799
800 check_insn(){
801     log check_insn "$@"
802     check_inline_asm ${1}_inline "\"$2\""
803     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
804 }
805
806 check_yasm(){
807     log check_yasm "$@"
808     echo "$1" > $TMPS
809     log_file $TMPS
810     shift 1
811     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
812 }
813
814 ld_o(){
815     eval printf '%s\\n' $LD_O
816 }
817
818 check_ld(){
819     log check_ld "$@"
820     type=$1
821     shift 1
822     flags=$(filter_out '-l*|*.so' $@)
823     libs=$(filter '-l*|*.so' $@)
824     check_$type $($cflags_filter $flags) || return
825     flags=$($ldflags_filter $flags)
826     libs=$($ldflags_filter $libs)
827     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
828 }
829
830 check_code(){
831     log check_code "$@"
832     check=$1
833     headers=$2
834     code=$3
835     shift 3
836     {
837         for hdr in $headers; do
838             echo "#include <$hdr>"
839         done
840         echo "int main(void) { $code; return 0; }"
841     } | check_$check "$@"
842 }
843
844 check_cppflags(){
845     log check_cppflags "$@"
846     check_cc "$@" <<EOF && append CPPFLAGS "$@"
847 int x;
848 EOF
849 }
850
851 check_cflags(){
852     log check_cflags "$@"
853     set -- $($cflags_filter "$@")
854     check_cc "$@" <<EOF && append CFLAGS "$@"
855 int x;
856 EOF
857 }
858
859 check_cxxflags(){
860     log check_cxxflags "$@"
861     set -- $($cflags_filter "$@")
862     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
863 int x;
864 EOF
865 }
866
867 test_ldflags(){
868     log test_ldflags "$@"
869     check_ld "cc" "$@" <<EOF
870 int main(void){ return 0; }
871 EOF
872 }
873
874 check_ldflags(){
875     log check_ldflags "$@"
876     test_ldflags "$@" && add_ldflags "$@"
877 }
878
879 check_header(){
880     log check_header "$@"
881     header=$1
882     shift
883     disable_safe $header
884     check_cpp "$@" <<EOF && enable_safe $header
885 #include <$header>
886 int x;
887 EOF
888 }
889
890 check_func(){
891     log check_func "$@"
892     func=$1
893     shift
894     disable $func
895     check_ld "cc" "$@" <<EOF && enable $func
896 extern int $func();
897 int main(void){ $func(); }
898 EOF
899 }
900
901 check_mathfunc(){
902     log check_mathfunc "$@"
903     func=$1
904     narg=$2
905     shift 2
906     test $narg = 2 && args="f, g" || args="f"
907     disable $func
908     check_ld "cc" "$@" <<EOF && enable $func
909 #include <math.h>
910 float foo(float f, float g) { return $func($args); }
911 int main(void){ return (int) foo; }
912 EOF
913 }
914
915 check_func_headers(){
916     log check_func_headers "$@"
917     headers=$1
918     funcs=$2
919     shift 2
920     {
921         for hdr in $headers; do
922             echo "#include <$hdr>"
923         done
924         for func in $funcs; do
925             echo "long check_$func(void) { return (long) $func; }"
926         done
927         echo "int main(void) { return 0; }"
928     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
929 }
930
931 check_class_headers_cpp(){
932     log check_class_headers_cpp "$@"
933     headers=$1
934     classes=$2
935     shift 2
936     {
937         for hdr in $headers; do
938             echo "#include <$hdr>"
939         done
940         echo "int main(void) { "
941         i=1
942         for class in $classes; do
943             echo "$class obj$i;"
944             i=$(expr $i + 1)
945         done
946         echo "return 0; }"
947     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
948 }
949
950 check_cpp_condition(){
951     log check_cpp_condition "$@"
952     header=$1
953     condition=$2
954     shift 2
955     check_cpp "$@" <<EOF
956 #include <$header>
957 #if !($condition)
958 #error "unsatisfied condition: $condition"
959 #endif
960 EOF
961 }
962
963 check_lib(){
964     log check_lib "$@"
965     header="$1"
966     func="$2"
967     shift 2
968     check_header $header && check_func $func "$@" && add_extralibs "$@"
969 }
970
971 check_lib2(){
972     log check_lib2 "$@"
973     headers="$1"
974     funcs="$2"
975     shift 2
976     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
977 }
978
979 check_lib_cpp(){
980     log check_lib_cpp "$@"
981     headers="$1"
982     classes="$2"
983     shift 2
984     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
985 }
986
987 check_pkg_config(){
988     log check_pkg_config "$@"
989     pkg="$1"
990     headers="$2"
991     funcs="$3"
992     shift 3
993     $pkg_config --exists $pkg 2>/dev/null || return
994     pkg_cflags=$($pkg_config --cflags $pkg)
995     pkg_libs=$($pkg_config --libs $pkg)
996     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
997         set_safe ${pkg}_cflags $pkg_cflags   &&
998         set_safe ${pkg}_libs   $pkg_libs
999 }
1000
1001 check_exec(){
1002     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1003 }
1004
1005 check_exec_crash(){
1006     code=$(cat)
1007
1008     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1009     # are safe but may not be available everywhere.  Thus we use
1010     # raise(SIGTERM) instead.  The check is run in a subshell so we
1011     # can redirect the "Terminated" message from the shell.  SIGBUS
1012     # is not defined by standard C so it is used conditionally.
1013
1014     (check_exec "$@") >> $logfile 2>&1 <<EOF
1015 #include <signal.h>
1016 static void sighandler(int sig){
1017     raise(SIGTERM);
1018 }
1019 int foo(void){
1020     $code
1021 }
1022 int (*func_ptr)(void) = foo;
1023 int main(void){
1024     signal(SIGILL, sighandler);
1025     signal(SIGFPE, sighandler);
1026     signal(SIGSEGV, sighandler);
1027 #ifdef SIGBUS
1028     signal(SIGBUS, sighandler);
1029 #endif
1030     return func_ptr();
1031 }
1032 EOF
1033 }
1034
1035 check_type(){
1036     log check_type "$@"
1037     headers=$1
1038     type=$2
1039     shift 2
1040     disable_safe "$type"
1041     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1042 }
1043
1044 check_struct(){
1045     log check_struct "$@"
1046     headers=$1
1047     struct=$2
1048     member=$3
1049     shift 3
1050     disable_safe "${struct}_${member}"
1051     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1052         enable_safe "${struct}_${member}"
1053 }
1054
1055 check_builtin(){
1056     log check_builtin "$@"
1057     name=$1
1058     headers=$2
1059     builtin=$3
1060     shift 3
1061     disable "$name"
1062     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1063 }
1064
1065 require(){
1066     name="$1"
1067     header="$2"
1068     func="$3"
1069     shift 3
1070     check_lib $header $func "$@" || die "ERROR: $name not found"
1071 }
1072
1073 require2(){
1074     name="$1"
1075     headers="$2"
1076     func="$3"
1077     shift 3
1078     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1079 }
1080
1081 require_cpp(){
1082     name="$1"
1083     headers="$2"
1084     classes="$3"
1085     shift 3
1086     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1087 }
1088
1089 require_pkg_config(){
1090     pkg="$1"
1091     check_pkg_config "$@" || die "ERROR: $pkg not found"
1092     add_cflags    $(get_safe ${pkg}_cflags)
1093     add_extralibs $(get_safe ${pkg}_libs)
1094 }
1095
1096 hostcc_o(){
1097     eval printf '%s\\n' $HOSTCC_O
1098 }
1099
1100 check_host_cc(){
1101     log check_host_cc "$@"
1102     cat > $TMPC
1103     log_file $TMPC
1104     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1105 }
1106
1107 check_host_cppflags(){
1108     log check_host_cppflags "$@"
1109     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1110 int x;
1111 EOF
1112 }
1113
1114 check_host_cflags(){
1115     log check_host_cflags "$@"
1116     set -- $($host_cflags_filter "$@")
1117     check_host_cc "$@" <<EOF && append host_cflags "$@"
1118 int x;
1119 EOF
1120 }
1121
1122 apply(){
1123     file=$1
1124     shift
1125     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1126 }
1127
1128 cp_if_changed(){
1129     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1130     mkdir -p "$(dirname $2)"
1131     $cp_f "$1" "$2"
1132 }
1133
1134 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1135 # system-dependent things.
1136
1137 COMPONENT_LIST="
1138     bsfs
1139     decoders
1140     demuxers
1141     encoders
1142     filters
1143     hwaccels
1144     indevs
1145     muxers
1146     outdevs
1147     parsers
1148     protocols
1149 "
1150
1151 EXTERNAL_LIBRARY_LIST="
1152     avisynth
1153     bzlib
1154     crystalhd
1155     fontconfig
1156     frei0r
1157     gnutls
1158     iconv
1159     libaacplus
1160     libass
1161     libbluray
1162     libcaca
1163     libcdio
1164     libcelt
1165     libdc1394
1166     libfaac
1167     libfdk_aac
1168     libflite
1169     libfreetype
1170     libgsm
1171     libiec61883
1172     libilbc
1173     libmodplug
1174     libmp3lame
1175     libnut
1176     libopencore_amrnb
1177     libopencore_amrwb
1178     libopencv
1179     libopenjpeg
1180     libopus
1181     libpulse
1182     libquvi
1183     librtmp
1184     libschroedinger
1185     libshine
1186     libsoxr
1187     libspeex
1188     libstagefright_h264
1189     libtheora
1190     libtwolame
1191     libutvideo
1192     libv4l2
1193     libvidstab
1194     libvo_aacenc
1195     libvo_amrwbenc
1196     libvorbis
1197     libvpx
1198     libwavpack
1199     libx264
1200     libxavs
1201     libxvid
1202     libzmq
1203     openal
1204     opencl
1205     openssl
1206     x11grab
1207     zlib
1208 "
1209
1210 DOCUMENT_LIST="
1211     doc
1212     htmlpages
1213     manpages
1214     podpages
1215     txtpages
1216 "
1217
1218 HWACCEL_LIST="
1219     dxva2
1220     vaapi
1221     vda
1222     vdpau
1223 "
1224
1225 LIBRARY_LIST="
1226     avcodec
1227     avdevice
1228     avfilter
1229     avformat
1230     avresample
1231     avutil
1232     postproc
1233     swresample
1234     swscale
1235 "
1236
1237 PROGRAM_LIST="
1238     ffplay
1239     ffprobe
1240     ffserver
1241     ffmpeg
1242 "
1243
1244 CONFIG_LIST="
1245     $COMPONENT_LIST
1246     $DOCUMENT_LIST
1247     $EXTERNAL_LIBRARY_LIST
1248     $HWACCEL_LIST
1249     $LIBRARY_LIST
1250     $PROGRAM_LIST
1251     dct
1252     dwt
1253     error_resilience
1254     fast_unaligned
1255     fft
1256     ftrapv
1257     gpl
1258     gray
1259     hardcoded_tables
1260     incompatible_fork_abi
1261     lsp
1262     lzo
1263     mdct
1264     memalign_hack
1265     memory_poisoning
1266     network
1267     nonfree
1268     pic
1269     rdft
1270     runtime_cpudetect
1271     safe_bitstream_reader
1272     shared
1273     small
1274     sram
1275     static
1276     swscale_alpha
1277     thumb
1278     version3
1279     xmm_clobber_test
1280 "
1281
1282 THREADS_LIST='
1283     pthreads
1284     w32threads
1285     os2threads
1286 '
1287
1288 ATOMICS_LIST='
1289     atomics_gcc
1290     atomics_suncc
1291     atomics_win32
1292 '
1293
1294 ARCH_LIST='
1295     aarch64
1296     alpha
1297     arm
1298     avr32
1299     avr32_ap
1300     avr32_uc
1301     bfin
1302     ia64
1303     m68k
1304     mips
1305     mips64
1306     parisc
1307     ppc
1308     ppc64
1309     s390
1310     sh4
1311     sparc
1312     sparc64
1313     tilegx
1314     tilepro
1315     tomi
1316     x86
1317     x86_32
1318     x86_64
1319 '
1320
1321 ARCH_EXT_LIST_ARM='
1322     armv5te
1323     armv6
1324     armv6t2
1325     neon
1326     vfp
1327     vfpv3
1328 '
1329
1330 ARCH_EXT_LIST_X86='
1331     amd3dnow
1332     amd3dnowext
1333     avx
1334     fma4
1335     mmx
1336     mmxext
1337     sse
1338     sse2
1339     sse3
1340     sse4
1341     sse42
1342     ssse3
1343 '
1344
1345 ARCH_EXT_LIST="
1346     $ARCH_EXT_LIST_ARM
1347     $ARCH_EXT_LIST_X86
1348     altivec
1349     ppc4xx
1350     vis
1351     mipsfpu
1352     mips32r2
1353     mipsdspr1
1354     mipsdspr2
1355 "
1356
1357 HAVE_LIST_CMDLINE='
1358     inline_asm
1359     symver
1360     yasm
1361 '
1362
1363 HAVE_LIST_PUB='
1364     bigendian
1365     fast_unaligned
1366     incompatible_fork_abi
1367 '
1368
1369 MATH_FUNCS="
1370     atanf
1371     atan2f
1372     cbrt
1373     cbrtf
1374     cosf
1375     exp2
1376     exp2f
1377     expf
1378     isinf
1379     isnan
1380     ldexpf
1381     llrint
1382     llrintf
1383     log2
1384     log2f
1385     log10f
1386     lrint
1387     lrintf
1388     powf
1389     rint
1390     round
1391     roundf
1392     sinf
1393     trunc
1394     truncf
1395 "
1396
1397 HAVE_LIST="
1398     $ARCH_EXT_LIST
1399     $(add_suffix _external $ARCH_EXT_LIST)
1400     $(add_suffix _inline   $ARCH_EXT_LIST)
1401     $HAVE_LIST_CMDLINE
1402     $HAVE_LIST_PUB
1403     $THREADS_LIST
1404     $ATOMICS_LIST
1405     $MATH_FUNCS
1406     access
1407     aligned_malloc
1408     aligned_stack
1409     alsa_asoundlib_h
1410     altivec_h
1411     arpa_inet_h
1412     asm_mod_q
1413     asm_mod_y
1414     asm_types_h
1415     atomic_cas_ptr
1416     atomics_native
1417     attribute_may_alias
1418     attribute_packed
1419     cdio_paranoia_h
1420     cdio_paranoia_paranoia_h
1421     CL_cl_h
1422     clock_gettime
1423     closesocket
1424     CommandLineToArgvW
1425     cpunop
1426     CryptGenRandom
1427     dcbzl
1428     dev_bktr_ioctl_bt848_h
1429     dev_bktr_ioctl_meteor_h
1430     dev_ic_bt8xx_h
1431     dev_video_bktr_ioctl_bt848_h
1432     dev_video_meteor_ioctl_meteor_h
1433     direct_h
1434     dlfcn_h
1435     dlopen
1436     dos_paths
1437     dxva_h
1438     ebp_available
1439     ebx_available
1440     fast_64bit
1441     fast_clz
1442     fast_cmov
1443     fcntl
1444     fork
1445     getaddrinfo
1446     gethrtime
1447     getopt
1448     GetProcessAffinityMask
1449     GetProcessMemoryInfo
1450     GetProcessTimes
1451     GetSystemTimeAsFileTime
1452     getrusage
1453     getservbyport
1454     gettimeofday
1455     glob
1456     gnu_as
1457     gsm_h
1458     i686
1459     ibm_asm
1460     inet_aton
1461     io_h
1462     isatty
1463     jack_port_get_latency_range
1464     kbhit
1465     ldbrx
1466     libdc1394_1
1467     libdc1394_2
1468     local_aligned_16
1469     local_aligned_8
1470     localtime_r
1471     loongson
1472     lzo1x_999_compress
1473     machine_ioctl_bt848_h
1474     machine_ioctl_meteor_h
1475     machine_rw_barrier
1476     makeinfo
1477     malloc_h
1478     MapViewOfFile
1479     memalign
1480     MemoryBarrier
1481     mkstemp
1482     mm_empty
1483     mmap
1484     mprotect
1485     msvcrt
1486     nanosleep
1487     openjpeg_1_5_openjpeg_h
1488     PeekNamedPipe
1489     perl
1490     pod2man
1491     poll_h
1492     posix_memalign
1493     pthread_cancel
1494     rdtsc
1495     rsync_contimeout
1496     sched_getaffinity
1497     sdl
1498     SetConsoleTextAttribute
1499     setmode
1500     setrlimit
1501     Sleep
1502     sndio_h
1503     socklen_t
1504     soundcard_h
1505     strerror_r
1506     struct_addrinfo
1507     struct_group_source_req
1508     struct_ip_mreq_source
1509     struct_ipv6_mreq
1510     struct_pollfd
1511     struct_rusage_ru_maxrss
1512     struct_sctp_event_subscribe
1513     struct_sockaddr_in6
1514     struct_sockaddr_sa_len
1515     struct_sockaddr_storage
1516     struct_stat_st_mtim_tv_nsec
1517     struct_v4l2_frmivalenum_discrete
1518     symver_asm_label
1519     symver_gnu_asm
1520     sync_val_compare_and_swap
1521     sysconf
1522     sysctl
1523     sys_mman_h
1524     sys_param_h
1525     sys_resource_h
1526     sys_select_h
1527     sys_soundcard_h
1528     sys_time_h
1529     sys_videoio_h
1530     termios_h
1531     texi2html
1532     threads
1533     unistd_h
1534     usleep
1535     vfp_args
1536     VirtualAlloc
1537     windows_h
1538     winsock2_h
1539     xform_asm
1540     xmm_clobbers
1541 "
1542
1543 # options emitted with CONFIG_ prefix but not available on the command line
1544 CONFIG_EXTRA="
1545     aandcttables
1546     ac3dsp
1547     audio_frame_queue
1548     dsputil
1549     frame_thread_encoder
1550     gcrypt
1551     golomb
1552     gplv3
1553     h264chroma
1554     h264dsp
1555     h264pred
1556     h264qpel
1557     hpeldsp
1558     huffman
1559     lgplv3
1560     lpc
1561     mpegaudio
1562     mpegaudiodsp
1563     mpegvideo
1564     mpegvideoenc
1565     nettle
1566     rangecoder
1567     rtpdec
1568     rtpenc_chain
1569     sinewin
1570     videodsp
1571     vp3dsp
1572 "
1573
1574 CMDLINE_SELECT="
1575     $ARCH_EXT_LIST
1576     $CONFIG_LIST
1577     $HAVE_LIST_CMDLINE
1578     $THREADS_LIST
1579     asm
1580     cross_compile
1581     debug
1582     extra_warnings
1583     logging
1584     lto
1585     optimizations
1586     stripping
1587 "
1588
1589 PATHS_LIST='
1590     bindir
1591     datadir
1592     incdir
1593     libdir
1594     mandir
1595     prefix
1596     shlibdir
1597 '
1598
1599 CMDLINE_SET="
1600     $PATHS_LIST
1601     ar
1602     arch
1603     as
1604     assert_level
1605     build_suffix
1606     cc
1607     cpu
1608     cross_prefix
1609     cxx
1610     dep_cc
1611     extra_version
1612     host_cc
1613     host_cflags
1614     host_ld
1615     host_ldflags
1616     host_libs
1617     host_os
1618     install
1619     ld
1620     logfile
1621     malloc_prefix
1622     nm
1623     optflags
1624     pkg_config
1625     progs_suffix
1626     random_seed
1627     samples
1628     strip
1629     sysinclude
1630     sysroot
1631     target_exec
1632     target_os
1633     target_path
1634     target_samples
1635     toolchain
1636     valgrind
1637     yasmexe
1638 "
1639
1640 CMDLINE_APPEND="
1641     extra_cflags
1642     extra_cxxflags
1643     host_cppflags
1644 "
1645
1646 # code dependency declarations
1647
1648 # architecture extensions
1649
1650 armv5te_deps="arm"
1651 armv6_deps="arm"
1652 armv6t2_deps="arm"
1653 neon_deps="arm"
1654 vfp_deps="arm"
1655 vfpv3_deps="vfp"
1656
1657 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1658
1659 mipsfpu_deps="mips"
1660 mips32r2_deps="mips"
1661 mipsdspr1_deps="mips"
1662 mipsdspr2_deps="mips"
1663
1664 altivec_deps="ppc"
1665 ppc4xx_deps="ppc"
1666
1667 vis_deps="sparc"
1668
1669 x86_64_suggest="fast_cmov i686"
1670
1671 amd3dnow_deps="mmx"
1672 amd3dnowext_deps="amd3dnow"
1673 mmx_deps="x86"
1674 mmxext_deps="mmx"
1675 sse_deps="mmxext"
1676 sse2_deps="sse"
1677 sse3_deps="sse2"
1678 ssse3_deps="sse3"
1679 sse4_deps="ssse3"
1680 sse42_deps="sse4"
1681 avx_deps="sse42"
1682 fma4_deps="avx"
1683
1684 mmx_external_deps="yasm"
1685 mmx_inline_deps="inline_asm"
1686 mmx_suggest="mmx_external mmx_inline"
1687
1688 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1689     eval dep=\$${ext}_deps
1690     eval ${ext}_external_deps='"${dep}_external"'
1691     eval ${ext}_inline_deps='"${dep}_inline"'
1692     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1693 done
1694
1695 aligned_stack_if_any="ppc x86"
1696 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1697 fast_clz_if_any="alpha avr32 mips ppc x86"
1698 fast_unaligned_if_any="ppc x86"
1699
1700 inline_asm_deps="!tms470"
1701 need_memalign="altivec neon sse"
1702
1703 symver_if_any="symver_asm_label symver_gnu_asm"
1704
1705 log2_deps="!msvcrt"
1706
1707 # subsystems
1708 dct_select="rdft"
1709 error_resilience_select="dsputil"
1710 frame_thread_encoder_deps="encoders threads"
1711 lpc_select="dsputil"
1712 mdct_select="fft"
1713 rdft_select="fft"
1714 mpegaudio_select="mpegaudiodsp"
1715 mpegaudiodsp_select="dct"
1716 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1717 mpegvideoenc_select="mpegvideo"
1718
1719 # decoders / encoders
1720 aac_decoder_select="mdct sinewin"
1721 aac_encoder_select="audio_frame_queue mdct sinewin"
1722 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1723 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1724 ac3_encoder_select="mdct ac3dsp dsputil"
1725 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1726 aic_decoder_select="dsputil golomb"
1727 alac_encoder_select="lpc"
1728 als_decoder_select="dsputil"
1729 amrnb_decoder_select="lsp"
1730 amrwb_decoder_select="lsp"
1731 amv_decoder_select="dsputil hpeldsp"
1732 amv_encoder_select="aandcttables"
1733 ape_decoder_select="dsputil"
1734 asv1_decoder_select="dsputil"
1735 asv1_encoder_select="dsputil"
1736 asv2_decoder_select="dsputil"
1737 asv2_encoder_select="dsputil"
1738 atrac1_decoder_select="mdct sinewin"
1739 atrac3_decoder_select="mdct"
1740 bink_decoder_select="dsputil hpeldsp"
1741 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1742 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1743 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1744 cllc_decoder_select="dsputil"
1745 comfortnoise_encoder_select="lpc"
1746 cook_decoder_select="dsputil mdct sinewin"
1747 cscd_decoder_select="lzo"
1748 cscd_decoder_suggest="zlib"
1749 dca_decoder_select="mdct"
1750 dirac_decoder_select="dsputil dwt golomb videodsp"
1751 dnxhd_decoder_select="dsputil"
1752 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1753 dvvideo_decoder_select="dsputil"
1754 dvvideo_encoder_select="dsputil"
1755 dxa_decoder_select="zlib"
1756 eac3_decoder_select="ac3_decoder"
1757 eac3_encoder_select="ac3_encoder"
1758 eamad_decoder_select="aandcttables dsputil mpegvideo"
1759 eatgq_decoder_select="aandcttables"
1760 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1761 exr_decoder_select="zlib"
1762 ffv1_decoder_select="dsputil golomb rangecoder"
1763 ffv1_encoder_select="dsputil rangecoder"
1764 ffvhuff_decoder_select="dsputil"
1765 ffvhuff_encoder_select="dsputil huffman"
1766 flac_decoder_select="golomb"
1767 flac_encoder_select="dsputil golomb lpc"
1768 flashsv_decoder_select="zlib"
1769 flashsv_encoder_select="zlib"
1770 flashsv2_encoder_select="zlib"
1771 flashsv2_decoder_select="zlib"
1772 flv_decoder_select="h263_decoder"
1773 flv_encoder_select="h263_encoder"
1774 fourxm_decoder_select="dsputil"
1775 fraps_decoder_select="dsputil huffman"
1776 g2m_decoder_select="dsputil zlib"
1777 g729_decoder_select="dsputil"
1778 h261_decoder_select="error_resilience mpegvideo"
1779 h261_encoder_select="aandcttables mpegvideoenc"
1780 h263_decoder_select="error_resilience h263_parser mpegvideo"
1781 h263_encoder_select="aandcttables mpegvideoenc"
1782 h263i_decoder_select="h263_decoder"
1783 h263p_encoder_select="h263_encoder"
1784 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1785 h264_decoder_suggest="error_resilience"
1786 huffyuv_decoder_select="dsputil"
1787 huffyuv_encoder_select="dsputil huffman"
1788 iac_decoder_select="dsputil fft mdct sinewin"
1789 imc_decoder_select="dsputil fft mdct sinewin"
1790 indeo3_decoder_select="hpeldsp"
1791 interplay_video_decoder_select="hpeldsp"
1792 jpegls_decoder_select="dsputil golomb hpeldsp"
1793 jpegls_encoder_select="golomb"
1794 jv_decoder_select="dsputil"
1795 lagarith_decoder_select="dsputil"
1796 ljpeg_encoder_select="aandcttables mpegvideoenc"
1797 loco_decoder_select="golomb"
1798 mdec_decoder_select="dsputil error_resilience mpegvideo"
1799 mimic_decoder_select="dsputil hpeldsp"
1800 mjpeg_decoder_select="dsputil hpeldsp"
1801 mjpegb_decoder_select="dsputil hpeldsp"
1802 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1803 mlp_decoder_select="dsputil mlp_parser"
1804 motionpixels_decoder_select="dsputil"
1805 mp1_decoder_select="mpegaudio"
1806 mp1float_decoder_select="mpegaudio"
1807 mp2_decoder_select="mpegaudio"
1808 mp2float_decoder_select="mpegaudio"
1809 mp3_decoder_select="mpegaudio"
1810 mp3adu_decoder_select="mpegaudio"
1811 mp3adufloat_decoder_select="mpegaudio"
1812 mp3float_decoder_select="mpegaudio"
1813 mp3on4_decoder_select="mpegaudio"
1814 mp3on4float_decoder_select="mpegaudio"
1815 mpc7_decoder_select="dsputil mpegaudiodsp"
1816 mpc8_decoder_select="dsputil mpegaudiodsp"
1817 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1818 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1819 mpeg1video_decoder_select="error_resilience mpegvideo"
1820 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1821 mpeg2video_decoder_select="error_resilience mpegvideo"
1822 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1823 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1824 mpeg4_encoder_select="h263_encoder"
1825 msmpeg4v1_decoder_select="h263_decoder"
1826 msmpeg4v2_decoder_select="h263_decoder"
1827 msmpeg4v2_encoder_select="h263_encoder"
1828 msmpeg4v3_decoder_select="h263_decoder"
1829 msmpeg4v3_encoder_select="h263_encoder"
1830 mss2_decoder_select="error_resilience vc1_decoder"
1831 mxpeg_decoder_select="dsputil hpeldsp"
1832 nellymoser_decoder_select="mdct sinewin"
1833 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1834 nuv_decoder_select="dsputil lzo"
1835 png_decoder_select="zlib"
1836 png_encoder_select="dsputil zlib"
1837 prores_decoder_select="dsputil"
1838 prores_encoder_select="dsputil"
1839 qcelp_decoder_select="lsp"
1840 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1841 ra_144_encoder_select="audio_frame_queue lpc"
1842 ralf_decoder_select="golomb"
1843 rtjpeg_decoder_select="dsputil"
1844 rv10_decoder_select="error_resilience h263_decoder"
1845 rv10_encoder_select="h263_encoder"
1846 rv20_decoder_select="error_resilience h263_decoder"
1847 rv20_encoder_select="h263_encoder"
1848 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1849 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1850 shorten_decoder_select="golomb"
1851 sipr_decoder_select="lsp"
1852 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1853 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1854 sonic_decoder_select="golomb"
1855 sonic_encoder_select="golomb"
1856 sonic_ls_encoder_select="golomb"
1857 sp5x_decoder_select="dsputil hpeldsp"
1858 svq1_decoder_select="hpeldsp"
1859 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1860 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1861 svq3_decoder_suggest="error_resilience zlib"
1862 tak_decoder_select="dsputil"
1863 theora_decoder_select="vp3_decoder"
1864 tiff_decoder_suggest="zlib"
1865 tiff_encoder_suggest="zlib"
1866 thp_decoder_select="dsputil hpeldsp"
1867 truehd_decoder_select="mlp_parser"
1868 truemotion2_decoder_select="dsputil"
1869 truespeech_decoder_select="dsputil"
1870 tscc_decoder_select="zlib"
1871 twinvq_decoder_select="mdct lsp sinewin"
1872 utvideo_decoder_select="dsputil"
1873 utvideo_encoder_select="dsputil huffman"
1874 vble_decoder_select="dsputil"
1875 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1876 vc1image_decoder_select="vc1_decoder"
1877 vorbis_decoder_select="mdct"
1878 vorbis_encoder_select="mdct"
1879 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1880 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1881 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1882 vp6a_decoder_select="vp6_decoder"
1883 vp6f_decoder_select="vp6_decoder"
1884 vp8_decoder_select="h264pred videodsp"
1885 wmapro_decoder_select="mdct sinewin"
1886 wmav1_decoder_select="mdct sinewin"
1887 wmav1_encoder_select="mdct sinewin"
1888 wmav2_decoder_select="mdct sinewin"
1889 wmav2_encoder_select="mdct sinewin"
1890 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1891 wmv1_decoder_select="h263_decoder"
1892 wmv1_encoder_select="h263_encoder"
1893 wmv2_decoder_select="h263_decoder videodsp"
1894 wmv2_encoder_select="h263_encoder"
1895 wmv3_decoder_select="vc1_decoder"
1896 wmv3image_decoder_select="wmv3_decoder"
1897 zerocodec_decoder_select="zlib"
1898 zlib_decoder_select="zlib"
1899 zlib_encoder_select="zlib"
1900 zmbv_decoder_select="zlib"
1901 zmbv_encoder_select="zlib"
1902
1903 # hardware accelerators
1904 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1905 dxva2_deps="dxva2api_h"
1906 vaapi_deps="va_va_h"
1907 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1908 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1909 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1910
1911 h263_vaapi_hwaccel_deps="vaapi"
1912 h263_vaapi_hwaccel_select="h263_decoder"
1913 h263_vdpau_hwaccel_deps="vdpau"
1914 h263_vdpau_hwaccel_select="h263_decoder"
1915 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1916 h264_dxva2_hwaccel_deps="dxva2"
1917 h264_dxva2_hwaccel_select="h264_decoder"
1918 h264_vaapi_hwaccel_deps="vaapi"
1919 h264_vaapi_hwaccel_select="h264_decoder"
1920 h264_vda_decoder_deps="vda"
1921 h264_vda_decoder_select="h264_decoder"
1922 h264_vda_hwaccel_deps="vda"
1923 h264_vda_hwaccel_select="h264_decoder"
1924 h264_vdpau_decoder_deps="vdpau"
1925 h264_vdpau_decoder_select="h264_decoder"
1926 h264_vdpau_hwaccel_deps="vdpau"
1927 h264_vdpau_hwaccel_select="h264_decoder"
1928 mpeg_vdpau_decoder_deps="vdpau"
1929 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1930 mpeg1_vdpau_decoder_deps="vdpau"
1931 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1932 mpeg1_vdpau_hwaccel_deps="vdpau"
1933 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1934 mpeg2_crystalhd_decoder_select="crystalhd"
1935 mpeg2_dxva2_hwaccel_deps="dxva2"
1936 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1937 mpeg2_vaapi_hwaccel_deps="vaapi"
1938 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1939 mpeg2_vdpau_hwaccel_deps="vdpau"
1940 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1941 mpeg4_crystalhd_decoder_select="crystalhd"
1942 mpeg4_vaapi_hwaccel_deps="vaapi"
1943 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1944 mpeg4_vdpau_decoder_deps="vdpau"
1945 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1946 mpeg4_vdpau_hwaccel_deps="vdpau"
1947 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1948 msmpeg4_crystalhd_decoder_select="crystalhd"
1949 vc1_crystalhd_decoder_select="crystalhd"
1950 vc1_dxva2_hwaccel_deps="dxva2"
1951 vc1_dxva2_hwaccel_select="vc1_decoder"
1952 vc1_vaapi_hwaccel_deps="vaapi"
1953 vc1_vaapi_hwaccel_select="vc1_decoder"
1954 vc1_vdpau_decoder_deps="vdpau"
1955 vc1_vdpau_decoder_select="vc1_decoder"
1956 vc1_vdpau_hwaccel_deps="vdpau"
1957 vc1_vdpau_hwaccel_select="vc1_decoder"
1958 wmv3_crystalhd_decoder_select="crystalhd"
1959 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1960 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1961 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1962 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1963
1964 # parsers
1965 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1966 mpeg4video_parser_select="error_resilience mpegvideo"
1967 mpegvideo_parser_select="error_resilience mpegvideo"
1968 vc1_parser_select="mpegvideo"
1969
1970 # external libraries
1971 libaacplus_encoder_deps="libaacplus"
1972 libcelt_decoder_deps="libcelt"
1973 libfaac_encoder_deps="libfaac"
1974 libfaac_encoder_select="audio_frame_queue"
1975 libfdk_aac_encoder_deps="libfdk_aac"
1976 libfdk_aac_encoder_select="audio_frame_queue"
1977 libgsm_decoder_deps="libgsm"
1978 libgsm_encoder_deps="libgsm"
1979 libgsm_ms_decoder_deps="libgsm"
1980 libgsm_ms_encoder_deps="libgsm"
1981 libilbc_decoder_deps="libilbc"
1982 libilbc_encoder_deps="libilbc"
1983 libmodplug_demuxer_deps="libmodplug"
1984 libmp3lame_encoder_deps="libmp3lame"
1985 libmp3lame_encoder_select="audio_frame_queue"
1986 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1987 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1988 libopencore_amrnb_encoder_select="audio_frame_queue"
1989 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1990 libopenjpeg_decoder_deps="libopenjpeg"
1991 libopenjpeg_encoder_deps="libopenjpeg"
1992 libopus_decoder_deps="libopus"
1993 libopus_encoder_deps="libopus"
1994 libopus_encoder_select="audio_frame_queue"
1995 libquvi_demuxer_deps="libquvi"
1996 libschroedinger_decoder_deps="libschroedinger"
1997 libschroedinger_encoder_deps="libschroedinger"
1998 libshine_encoder_deps="libshine"
1999 libshine_encoder_select="audio_frame_queue"
2000 libspeex_decoder_deps="libspeex"
2001 libspeex_encoder_deps="libspeex"
2002 libspeex_encoder_select="audio_frame_queue"
2003 libstagefright_h264_decoder_deps="libstagefright_h264"
2004 libtheora_encoder_deps="libtheora"
2005 libtwolame_encoder_deps="libtwolame"
2006 libvo_aacenc_encoder_deps="libvo_aacenc"
2007 libvo_aacenc_encoder_select="audio_frame_queue"
2008 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2009 libvorbis_decoder_deps="libvorbis"
2010 libvorbis_encoder_deps="libvorbis"
2011 libvorbis_encoder_select="audio_frame_queue"
2012 libvpx_vp8_decoder_deps="libvpx"
2013 libvpx_vp8_encoder_deps="libvpx"
2014 libvpx_vp9_decoder_deps="libvpx"
2015 libvpx_vp9_encoder_deps="libvpx"
2016 libwavpack_encoder_deps="libwavpack"
2017 libx264_encoder_deps="libx264"
2018 libx264rgb_encoder_deps="libx264"
2019 libxavs_encoder_deps="libxavs"
2020 libxvid_encoder_deps="libxvid"
2021 libutvideo_decoder_deps="libutvideo"
2022 libutvideo_encoder_deps="libutvideo"
2023
2024 # demuxers / muxers
2025 ac3_demuxer_select="ac3_parser"
2026 asf_stream_muxer_select="asf_muxer"
2027 avisynth_demuxer_deps="avisynth"
2028 dirac_demuxer_select="dirac_parser"
2029 dts_demuxer_select="dca_parser"
2030 dtshd_demuxer_select="dca_parser"
2031 eac3_demuxer_select="ac3_parser"
2032 f4v_muxer_select="mov_muxer"
2033 flac_demuxer_select="flac_parser"
2034 ipod_muxer_select="mov_muxer"
2035 ismv_muxer_select="mov_muxer"
2036 libnut_demuxer_deps="libnut"
2037 libnut_muxer_deps="libnut"
2038 matroska_audio_muxer_select="matroska_muxer"
2039 matroska_demuxer_suggest="bzlib lzo zlib"
2040 mov_demuxer_suggest="zlib"
2041 mov_muxer_select="rtpenc_chain"
2042 mp3_demuxer_select="mpegaudio_parser"
2043 mp4_muxer_select="mov_muxer"
2044 mpegts_muxer_select="adts_muxer latm_muxer"
2045 mpegtsraw_demuxer_select="mpegts_demuxer"
2046 mxf_d10_muxer_select="mxf_muxer"
2047 ogg_demuxer_select="golomb"
2048 psp_muxer_select="mov_muxer"
2049 rtp_demuxer_select="sdp_demuxer"
2050 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2051 rtsp_demuxer_select="http_protocol rtpdec"
2052 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2053 sap_demuxer_select="sdp_demuxer"
2054 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2055 sdp_demuxer_select="rtpdec"
2056 smoothstreaming_muxer_select="ismv_muxer"
2057 spdif_muxer_select="aac_parser"
2058 tak_demuxer_select="tak_parser"
2059 tg2_muxer_select="mov_muxer"
2060 tgp_muxer_select="mov_muxer"
2061 vobsub_demuxer_select="mpegps_demuxer"
2062 w64_demuxer_deps="wav_demuxer"
2063 w64_muxer_deps="wav_muxer"
2064
2065 # indevs / outdevs
2066 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2067 alsa_outdev_deps="alsa_asoundlib_h"
2068 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2069 caca_outdev_deps="libcaca"
2070 dshow_indev_deps="IBaseFilter"
2071 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2072 dv1394_indev_deps="dv1394 dv_demuxer"
2073 fbdev_indev_deps="linux_fb_h"
2074 iec61883_indev_deps="libiec61883"
2075 jack_indev_deps="jack_jack_h sem_timedwait"
2076 lavfi_indev_deps="avfilter"
2077 libcdio_indev_deps="libcdio"
2078 libdc1394_indev_deps="libdc1394"
2079 libv4l2_indev_deps="libv4l2"
2080 openal_indev_deps="openal"
2081 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2082 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2083 pulse_indev_deps="libpulse"
2084 sdl_outdev_deps="sdl"
2085 sndio_indev_deps="sndio_h"
2086 sndio_outdev_deps="sndio_h"
2087 v4l_indev_deps="linux_videodev_h"
2088 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2089 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2090 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2091 vfwcap_indev_extralibs="-lavicap32"
2092 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2093 xv_outdev_extralibs="-lXv -lX11 -lXext"
2094 x11grab_indev_deps="x11grab"
2095
2096 # protocols
2097 bluray_protocol_deps="libbluray"
2098 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2099 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2100 ffrtmpcrypt_protocol_select="tcp_protocol"
2101 ffrtmphttp_protocol_deps="!librtmp_protocol"
2102 ffrtmphttp_protocol_select="http_protocol"
2103 ftp_protocol_select="tcp_protocol"
2104 gopher_protocol_select="network"
2105 httpproxy_protocol_select="tcp_protocol"
2106 http_protocol_select="tcp_protocol"
2107 https_protocol_select="tls_protocol"
2108 librtmp_protocol_deps="librtmp"
2109 librtmpe_protocol_deps="librtmp"
2110 librtmps_protocol_deps="librtmp"
2111 librtmpt_protocol_deps="librtmp"
2112 librtmpte_protocol_deps="librtmp"
2113 mmsh_protocol_select="http_protocol"
2114 mmst_protocol_select="network"
2115 rtmp_protocol_deps="!librtmp_protocol"
2116 rtmp_protocol_select="tcp_protocol"
2117 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2118 rtmps_protocol_deps="!librtmp_protocol"
2119 rtmps_protocol_select="tls_protocol"
2120 rtmpt_protocol_select="ffrtmphttp_protocol"
2121 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2122 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2123 rtp_protocol_select="udp_protocol"
2124 sctp_protocol_deps="struct_sctp_event_subscribe"
2125 sctp_protocol_select="network"
2126 srtp_protocol_select="rtp_protocol"
2127 tcp_protocol_select="network"
2128 tls_protocol_deps_any="openssl gnutls"
2129 tls_protocol_select="tcp_protocol"
2130 udp_protocol_select="network"
2131
2132 # filters
2133 aconvert_filter_deps="swresample"
2134 amovie_filter_deps="avcodec avformat"
2135 aresample_filter_deps="swresample"
2136 ass_filter_deps="libass"
2137 asyncts_filter_deps="avresample"
2138 atempo_filter_deps="avcodec rdft"
2139 azmq_filter_deps="libzmq"
2140 blackframe_filter_deps="gpl"
2141 boxblur_filter_deps="gpl"
2142 colormatrix_filter_deps="gpl"
2143 cropdetect_filter_deps="gpl"
2144 dctdnoiz_filter_deps="avcodec fft"
2145 delogo_filter_deps="gpl"
2146 deshake_filter_deps="avcodec"
2147 deshake_filter_select="dsputil"
2148 drawtext_filter_deps="libfreetype"
2149 ebur128_filter_deps="gpl"
2150 flite_filter_deps="libflite"
2151 frei0r_filter_deps="frei0r dlopen"
2152 frei0r_filter_extralibs='$ldl'
2153 frei0r_src_filter_deps="frei0r dlopen"
2154 frei0r_src_filter_extralibs='$ldl'
2155 geq_filter_deps="gpl"
2156 histeq_filter_deps="gpl"
2157 hqdn3d_filter_deps="gpl"
2158 hue_filter_deps="gpl"
2159 interlace_filter_deps="gpl"
2160 kerndeint_filter_deps="gpl"
2161 mcdeint_filter_deps="avcodec gpl"
2162 movie_filter_deps="avcodec avformat"
2163 mp_filter_deps="gpl avcodec swscale inline_asm"
2164 mpdecimate_filter_deps="gpl avcodec"
2165 mptestsrc_filter_deps="gpl"
2166 negate_filter_deps="lut_filter"
2167 noise_filter_deps="gpl"
2168 resample_filter_deps="avresample"
2169 ocv_filter_deps="libopencv"
2170 owdenoise_filter_deps="gpl"
2171 pan_filter_deps="swresample"
2172 pp_filter_deps="gpl postproc"
2173 removelogo_filter_deps="avcodec avformat swscale"
2174 sab_filter_deps="gpl swscale"
2175 scale_filter_deps="swscale"
2176 smartblur_filter_deps="gpl swscale"
2177 showspectrum_filter_deps="avcodec rdft"
2178 stereo3d_filter_deps="gpl"
2179 subtitles_filter_deps="avformat avcodec libass"
2180 super2xsai_filter_deps="gpl"
2181 tinterlace_filter_deps="gpl"
2182 vidstabdetect_filter_deps="libvidstab"
2183 vidstabtransform_filter_deps="libvidstab"
2184 yadif_filter_deps="gpl"
2185 pixfmts_super2xsai_test_deps="super2xsai_filter"
2186 tinterlace_merge_test_deps="tinterlace_filter"
2187 tinterlace_pad_test_deps="tinterlace_filter"
2188 zmq_filter_deps="libzmq"
2189
2190 # libraries
2191 avcodec_deps="avutil"
2192 avdevice_deps="avutil avcodec avformat"
2193 avfilter_deps="avutil"
2194 avformat_deps="avutil avcodec"
2195 avresample_deps="avutil"
2196 postproc_deps="avutil gpl"
2197 swscale_deps="avutil"
2198
2199 # programs
2200 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2201 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2202                null_filter
2203                setpts_filter trim_filter"
2204 ffplay_deps="avcodec avformat swscale swresample sdl"
2205 ffplay_select="rdft crop_filter"
2206 ffprobe_deps="avcodec avformat"
2207 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2208 ffserver_extralibs='$ldl'
2209
2210 # documentation
2211 podpages_deps="perl"
2212 manpages_deps="perl pod2man"
2213 htmlpages_deps="texi2html"
2214 txtpages_deps="makeinfo"
2215 doc_deps_any="manpages htmlpages podpages txtpages"
2216
2217 # default parameters
2218
2219 logfile="config.log"
2220
2221 # installation paths
2222 prefix_default="/usr/local"
2223 bindir_default='${prefix}/bin'
2224 datadir_default='${prefix}/share/ffmpeg'
2225 incdir_default='${prefix}/include'
2226 libdir_default='${prefix}/lib'
2227 mandir_default='${prefix}/share/man'
2228 shlibdir_default="$libdir_default"
2229
2230 # toolchain
2231 ar_default="ar"
2232 cc_default="gcc"
2233 cxx_default="g++"
2234 host_cc_default="gcc"
2235 cp_f="cp -f"
2236 install="install"
2237 ln_s="ln -s -f"
2238 nm_default="nm -g"
2239 objformat="elf"
2240 pkg_config_default=pkg-config
2241 ranlib="ranlib"
2242 strip_default="strip"
2243 yasmexe_default="yasm"
2244
2245 nogas=":"
2246
2247 # machine
2248 arch_default=$(uname -m)
2249 cpu="generic"
2250
2251 # OS
2252 target_os_default=$(tolower $(uname -s))
2253 host_os=$target_os_default
2254
2255 # configurable options
2256 enable $PROGRAM_LIST
2257 enable $DOCUMENT_LIST
2258 enable $(filter_out avresample $LIBRARY_LIST)
2259 enable stripping
2260
2261 enable asm
2262 enable debug
2263 enable doc
2264 enable optimizations
2265 enable runtime_cpudetect
2266 enable safe_bitstream_reader
2267 enable static
2268 enable swscale_alpha
2269
2270 # Enable hwaccels by default.
2271 enable dxva2 vaapi vdpau
2272
2273 # build settings
2274 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2275 FFSERVERLDFLAGS=-Wl,-E
2276 LIBPREF="lib"
2277 LIBSUF=".a"
2278 FULLNAME='$(NAME)$(BUILDSUF)'
2279 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2280 SLIBPREF="lib"
2281 SLIBSUF=".so"
2282 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2283 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2284 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2285 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2286 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2287 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2288
2289 asflags_filter=echo
2290 cflags_filter=echo
2291 ldflags_filter=echo
2292
2293 AS_C='-c'
2294 AS_O='-o $@'
2295 CC_C='-c'
2296 CC_E='-E -o $@'
2297 CC_O='-o $@'
2298 CXX_C='-c'
2299 CXX_O='-o $@'
2300 LD_O='-o $@'
2301 LD_LIB='-l%'
2302 LD_PATH='-L'
2303 HOSTCC_C='-c'
2304 HOSTCC_O='-o $@'
2305 HOSTLD_O='-o $@'
2306
2307 host_cflags='-O3 -g'
2308 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2309 host_libs='-lm'
2310 host_cflags_filter=echo
2311 host_ldflags_filter=echo
2312
2313 target_path='$(CURDIR)'
2314
2315 # since the object filename is not given with the -MM flag, the compiler
2316 # is only able to print the basename, and we must add the path ourselves
2317 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2318 DEPFLAGS='-MM'
2319
2320 # find source path
2321 if test -f configure; then
2322     source_path=.
2323 else
2324     source_path=$(cd $(dirname "$0"); pwd)
2325     echo "$source_path" | grep -q '[[:blank:]]' &&
2326         die "Out of tree builds are impossible with whitespace in source path."
2327     test -e "$source_path/config.h" &&
2328         die "Out of tree builds are impossible with config.h in source dir."
2329 fi
2330
2331 for v in "$@"; do
2332     r=${v#*=}
2333     l=${v%"$r"}
2334     r=$(sh_quote "$r")
2335     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2336 done
2337
2338 find_things(){
2339     thing=$1
2340     pattern=$2
2341     file=$source_path/$3
2342     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2343 }
2344
2345 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2346 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2347 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2348 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2349 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2350 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2351 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2352 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2353 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2354 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2355 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2356
2357 ALL_COMPONENTS="
2358     $BSF_LIST
2359     $DECODER_LIST
2360     $DEMUXER_LIST
2361     $ENCODER_LIST
2362     $FILTER_LIST
2363     $HWACCEL_LIST
2364     $INDEV_LIST
2365     $MUXER_LIST
2366     $OUTDEV_LIST
2367     $PARSER_LIST
2368     $PROTOCOL_LIST
2369 "
2370
2371 for n in $COMPONENT_LIST; do
2372     v=$(toupper ${n%s})_LIST
2373     eval enable \$$v
2374     eval ${n}_if_any="\$$v"
2375 done
2376
2377 enable $ARCH_EXT_LIST
2378
2379 die_unknown(){
2380     echo "Unknown option \"$1\"."
2381     echo "See $0 --help for available options."
2382     exit 1
2383 }
2384
2385 print_3_columns() {
2386     cat | tr ' ' '\n' | sort | pr -r -3 -t
2387 }
2388
2389 show_list() {
2390     suffix=_$1
2391     shift
2392     echo $* | sed s/$suffix//g | print_3_columns
2393     exit 0
2394 }
2395
2396 rand_list(){
2397     IFS=', '
2398     set -- $*
2399     unset IFS
2400     for thing; do
2401         comp=${thing%:*}
2402         prob=${thing#$comp}
2403         prob=${prob#:}
2404         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2405         echo "prob ${prob:-0.5}"
2406         printf '%s\n' $comp
2407     done
2408 }
2409
2410 do_random(){
2411     action=$1
2412     shift
2413     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2414     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2415 }
2416
2417 for opt do
2418     optval="${opt#*=}"
2419     case "$opt" in
2420         --extra-ldflags=*)
2421             add_ldflags $optval
2422         ;;
2423         --extra-libs=*)
2424             add_extralibs $optval
2425         ;;
2426         --disable-devices)
2427             disable $INDEV_LIST $OUTDEV_LIST
2428         ;;
2429         --enable-debug=*)
2430             debuglevel="$optval"
2431         ;;
2432         --disable-programs)
2433             disable $PROGRAM_LIST
2434         ;;
2435         --disable-everything)
2436             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2437         ;;
2438         --disable-all)
2439             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2440             disable $LIBRARY_LIST $PROGRAM_LIST doc
2441         ;;
2442         --enable-random|--disable-random)
2443             action=${opt%%-random}
2444             do_random ${action#--} $COMPONENT_LIST
2445         ;;
2446         --enable-random=*|--disable-random=*)
2447             action=${opt%%-random=*}
2448             do_random ${action#--} $optval
2449         ;;
2450         --enable-*=*|--disable-*=*)
2451             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2452             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2453             eval list=\$$(toupper $thing)_LIST
2454             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2455             list=$(filter "$name" $list)
2456             [ "$list" = "" ] && warn "Option $opt did not match anything"
2457             $action $list
2458         ;;
2459         --enable-?*|--disable-?*)
2460             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2461             if is_in $option $COMPONENT_LIST; then
2462                 test $action = disable && action=unset
2463                 eval $action \$$(toupper ${option%s})_LIST
2464             elif is_in $option $CMDLINE_SELECT; then
2465                 $action $option
2466             else
2467                 die_unknown $opt
2468             fi
2469         ;;
2470         --list-*)
2471             NAME="${opt#--list-}"
2472             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2473             NAME=${NAME%s}
2474             eval show_list $NAME \$$(toupper $NAME)_LIST
2475         ;;
2476         --help|-h) show_help
2477         ;;
2478         --fatal-warnings) enable fatal_warnings
2479         ;;
2480         *)
2481             optname="${opt%%=*}"
2482             optname="${optname#--}"
2483             optname=$(echo "$optname" | sed 's/-/_/g')
2484             if is_in $optname $CMDLINE_SET; then
2485                 eval $optname='$optval'
2486             elif is_in $optname $CMDLINE_APPEND; then
2487                 append $optname "$optval"
2488             else
2489                 die_unknown $opt
2490             fi
2491         ;;
2492     esac
2493 done
2494
2495 disabled logging && logfile=/dev/null
2496
2497 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2498 set >> $logfile
2499
2500 test -n "$cross_prefix" && enable cross_compile
2501
2502 if enabled cross_compile; then
2503     test -n "$arch" && test -n "$target_os" ||
2504         die "Must specify target arch and OS when cross-compiling"
2505 fi
2506
2507 ar_default="${cross_prefix}${ar_default}"
2508 cc_default="${cross_prefix}${cc_default}"
2509 cxx_default="${cross_prefix}${cxx_default}"
2510 nm_default="${cross_prefix}${nm_default}"
2511 pkg_config_default="${cross_prefix}${pkg_config_default}"
2512 ranlib="${cross_prefix}${ranlib}"
2513 strip_default="${cross_prefix}${strip_default}"
2514
2515 sysinclude_default="${sysroot}/usr/include"
2516
2517 test -n "$valgrind" && toolchain="valgrind-memcheck"
2518
2519 case "$toolchain" in
2520     clang-asan)
2521         cc_default="clang"
2522         add_cflags  -fsanitize=address
2523         add_ldflags -fsanitize=address
2524     ;;
2525     clang-tsan)
2526         cc_default="clang"
2527         add_cflags  -fsanitize=thread -pie
2528         add_ldflags -fsanitize=thread -pie
2529     ;;
2530     gcc-asan)
2531         cc_default="gcc"
2532         add_cflags  -fsanitize=address
2533         add_ldflags -fsanitize=address
2534     ;;
2535     gcc-tsan)
2536         cc_default="gcc"
2537         add_cflags  -fsanitize=thread -pie -fPIC
2538         add_ldflags -fsanitize=thread -pie -fPIC
2539     ;;
2540     valgrind-massif)
2541         target_exec_default=${valgrind:-"valgrind"}
2542         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2543     ;;
2544     valgrind-memcheck)
2545         target_exec_default=${valgrind:-"valgrind"}
2546         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2547     ;;
2548     msvc)
2549         cc_default="c99wrap cl"
2550         ld_default="c99wrap link"
2551         nm_default="dumpbin -symbols"
2552         ar_default="lib"
2553         target_os_default="win32"
2554     ;;
2555     icl)
2556         cc_default="c99wrap -noconv icl"
2557         ld_default="c99wrap xilink"
2558         nm_default="dumpbin -symbols"
2559         ar_default="xilib"
2560         target_os_default="win32"
2561     ;;
2562     gcov)
2563         add_cflags  -fprofile-arcs -ftest-coverage
2564         add_ldflags -fprofile-arcs -ftest-coverage
2565     ;;
2566     ?*)
2567         die "Unknown toolchain $toolchain"
2568     ;;
2569 esac
2570
2571 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2572 enabled cross_compile || host_cc_default=$cc
2573 set_default host_cc
2574
2575 if ! $pkg_config --version >/dev/null 2>&1; then
2576     warn "$pkg_config not found, library detection may fail."
2577     pkg_config=false
2578 fi
2579
2580 exesuf() {
2581     case $1 in
2582         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2583     esac
2584 }
2585
2586 EXESUF=$(exesuf $target_os)
2587 HOSTEXESUF=$(exesuf $host_os)
2588
2589 # set temporary file name
2590 : ${TMPDIR:=$TEMPDIR}
2591 : ${TMPDIR:=$TMP}
2592 : ${TMPDIR:=/tmp}
2593
2594 if ! check_cmd mktemp -u XXXXXX; then
2595     # simple replacement for missing mktemp
2596     # NOT SAFE FOR GENERAL USE
2597     mktemp(){
2598         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2599     }
2600 fi
2601
2602 tmpfile(){
2603     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2604         (set -C; exec > $tmp) 2>/dev/null ||
2605         die "Unable to create temporary file in $TMPDIR."
2606     append TMPFILES $tmp
2607     eval $1=$tmp
2608 }
2609
2610 trap 'rm -f -- $TMPFILES' EXIT
2611
2612 tmpfile TMPASM .asm
2613 tmpfile TMPC   .c
2614 tmpfile TMPCPP .cpp
2615 tmpfile TMPE   $EXESUF
2616 tmpfile TMPH   .h
2617 tmpfile TMPO   .o
2618 tmpfile TMPS   .S
2619 tmpfile TMPSH  .sh
2620 tmpfile TMPV   .ver
2621
2622 unset -f mktemp
2623
2624 chmod +x $TMPE
2625
2626 # make sure we can execute files in $TMPDIR
2627 cat > $TMPSH 2>> $logfile <<EOF
2628 #! /bin/sh
2629 EOF
2630 chmod +x $TMPSH >> $logfile 2>&1
2631 if ! $TMPSH >> $logfile 2>&1; then
2632     cat <<EOF
2633 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2634 variable to another directory and make sure that it is not mounted noexec.
2635 EOF
2636     die "Sanity test failed."
2637 fi
2638
2639 ccc_flags(){
2640     for flag; do
2641         case $flag in
2642             -std=c99)           echo -c99                       ;;
2643             -mcpu=*)            echo -arch ${flag#*=}           ;;
2644             -mieee)             echo -ieee                      ;;
2645             -O*|-fast)          echo $flag                      ;;
2646             -fno-math-errno)    echo -assume nomath_errno       ;;
2647             -g)                 echo -g3                        ;;
2648             -Wall)              echo -msg_enable level2         ;;
2649             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2650             -Wl,*)              echo $flag                      ;;
2651             -f*|-W*)                                            ;;
2652             *)                  echo $flag                      ;;
2653         esac
2654    done
2655 }
2656
2657 msvc_common_flags(){
2658     for flag; do
2659         case $flag in
2660             # In addition to specifying certain flags under the compiler
2661             # specific filters, they must be specified here as well or else the
2662             # generic catch all at the bottom will print the original flag.
2663             -Wall)                ;;
2664             -std=c99)             ;;
2665             # Common flags
2666             -fomit-frame-pointer) echo -Oy ;;
2667             -g)                   echo -Z7 ;;
2668             -fno-math-errno)      ;;
2669             -fno-common)          ;;
2670             -fno-signed-zeros)    ;;
2671             -fPIC)                ;;
2672             -mthumb)              ;;
2673             -march=*)             ;;
2674             -lz)                  echo zlib.lib ;;
2675             -lavifil32)           echo vfw32.lib ;;
2676             -lavicap32)           echo vfw32.lib user32.lib ;;
2677             -l*)                  echo ${flag#-l}.lib ;;
2678             *)                    echo $flag ;;
2679         esac
2680     done
2681 }
2682
2683 msvc_flags(){
2684     msvc_common_flags "$@"
2685     for flag; do
2686         case $flag in
2687             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2688                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2689                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2690                                        -wd4554 \
2691                                        -wd4996 -wd4273 ;;
2692         esac
2693     done
2694 }
2695
2696 icl_flags(){
2697     msvc_common_flags "$@"
2698     for flag; do
2699         case $flag in
2700             # Despite what Intel's documentation says -Wall, which is supported
2701             # on Windows, does enable remarks so disable them here.
2702             -Wall)                echo $flag -Qdiag-disable:remark ;;
2703             -std=c99)             echo -Qstd=c99 ;;
2704         esac
2705     done
2706 }
2707
2708 pgi_flags(){
2709     for flag; do
2710         case $flag in
2711             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2712             -fomit-frame-pointer) echo -Mnoframe ;;
2713             -g)                   echo -gopt ;;
2714             *)                    echo $flag ;;
2715         esac
2716     done
2717 }
2718
2719 suncc_flags(){
2720     for flag; do
2721         case $flag in
2722             -march=*|-mcpu=*)
2723                 case "${flag#*=}" in
2724                     native)                   echo -xtarget=native       ;;
2725                     v9|niagara)               echo -xarch=sparc          ;;
2726                     ultrasparc)               echo -xarch=sparcvis       ;;
2727                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2728                     i586|pentium)             echo -xchip=pentium        ;;
2729                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2730                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2731                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2732                     pentium4*)          echo -xtarget=pentium4           ;;
2733                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2734                     *-sse3)             echo -xarch=sse3                 ;;
2735                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2736                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2737                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2738                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2739                     bdver*)                   echo -xarch=avx            ;;
2740                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2741                     k8|opteron|athlon64|athlon-fx)
2742                                               echo -xarch=sse2a          ;;
2743                     athlon*)                  echo -xarch=pentium_proa   ;;
2744                 esac
2745                 ;;
2746             -std=c99)             echo -xc99              ;;
2747             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2748             -fPIC)                echo -KPIC -xcode=pic32 ;;
2749             -W*,*)                echo $flag              ;;
2750             -f*-*|-W*|-mimpure-text)                      ;;
2751             -shared)              echo -G                 ;;
2752             *)                    echo $flag              ;;
2753         esac
2754     done
2755 }
2756
2757 tms470_flags(){
2758     for flag; do
2759         case $flag in
2760             -march=*|-mcpu=*)
2761                 case "${flag#*=}" in
2762                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2763                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2764                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2765                     armv6*|arm11*)          echo -mv=6   ;;
2766                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2767                                             echo -mv=5e  ;;
2768                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2769                 esac
2770                 ;;
2771             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2772             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2773             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2774             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2775             -msoft-float)   echo --float_support=vfplib       ;;
2776             -O[0-3]|-mf=*)  echo $flag                        ;;
2777             -g)             echo -g -mn                       ;;
2778             -pds=*)         echo $flag                        ;;
2779             -D*|-I*)        echo $flag                        ;;
2780             --gcc|--abi=*)  echo $flag                        ;;
2781             -me)            echo $flag                        ;;
2782         esac
2783     done
2784 }
2785
2786 probe_cc(){
2787     pfx=$1
2788     _cc=$2
2789
2790     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2791     unset _ld_o _ldflags _ld_lib _ld_path
2792     unset _depflags _DEPCMD _DEPFLAGS
2793     _flags_filter=echo
2794
2795     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2796         _type=llvm_gcc
2797         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2798         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2799         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2800         _cflags_speed='-O3'
2801         _cflags_size='-Os'
2802     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2803         _type=gcc
2804         gcc_version=$($_cc --version | head -n1)
2805         gcc_basever=$($_cc -dumpversion)
2806         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2807         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2808         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2809         if ! $_cc -dumpversion | grep -q '^2\.'; then
2810             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2811         fi
2812         _cflags_speed='-O3'
2813         _cflags_size='-Os'
2814     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2815         _type=icc
2816         _ident=$($_cc --version | head -n1)
2817         _depflags='-MMD'
2818         _cflags_speed='-O3'
2819         _cflags_size='-Os'
2820         _cflags_noopt='-O1'
2821     elif $_cc -v 2>&1 | grep -q xlc; then
2822         _type=xlc
2823         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2824         _cflags_speed='-O5'
2825         _cflags_size='-O5 -qcompact'
2826     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2827         _type=ccc
2828         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2829         _DEPFLAGS='-M'
2830         _cflags_speed='-fast'
2831         _cflags_size='-O1'
2832         _flags_filter=ccc_flags
2833     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2834         test -d "$sysroot" || die "No valid sysroot specified."
2835         _type=armcc
2836         _ident=$($_cc --vsn | head -n1)
2837         armcc_conf="$PWD/armcc.conf"
2838         $_cc --arm_linux_configure                 \
2839              --arm_linux_config_file="$armcc_conf" \
2840              --configure_sysroot="$sysroot"        \
2841              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2842              die "Error creating armcc configuration file."
2843         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2844         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2845         as_default="${cross_prefix}gcc"
2846         _depflags='-MMD'
2847         _cflags_speed='-O3'
2848         _cflags_size='-Os'
2849     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2850         _type=tms470
2851         _ident=$($_cc -version | head -n1 | tr -s ' ')
2852         _flags='--gcc --abi=eabi -me'
2853         _cc_e='-ppl -fe=$@'
2854         _cc_o='-fe=$@'
2855         _depflags='-ppa -ppd=$(@:.o=.d)'
2856         _cflags_speed='-O3 -mf=5'
2857         _cflags_size='-O3 -mf=2'
2858         _flags_filter=tms470_flags
2859     elif $_cc -v 2>&1 | grep -q clang; then
2860         _type=clang
2861         _ident=$($_cc --version | head -n1)
2862         _depflags='-MMD'
2863         _cflags_speed='-O3'
2864         _cflags_size='-Os'
2865     elif $_cc -V 2>&1 | grep -q Sun; then
2866         _type=suncc
2867         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2868         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2869         _DEPFLAGS='-xM1 -xc99'
2870         _ldflags='-std=c99'
2871         _cflags_speed='-O5'
2872         _cflags_size='-O5 -xspace'
2873         _flags_filter=suncc_flags
2874     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2875         _type=pathscale
2876         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2877         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2878         _cflags_speed='-O2'
2879         _cflags_size='-Os'
2880         _flags_filter='filter_out -Wdisabled-optimization'
2881     elif $_cc -v 2>&1 | grep -q Open64; then
2882         _type=open64
2883         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2884         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2885         _cflags_speed='-O2'
2886         _cflags_size='-Os'
2887         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2888     elif $_cc -V 2>&1 | grep -q Portland; then
2889         _type=pgi
2890         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2891         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2892         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2893         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2894         _cflags_noopt="-O"
2895         _flags_filter=pgi_flags
2896     elif $_cc 2>&1 | grep -q Microsoft; then
2897         _type=msvc
2898         _ident=$($cc 2>&1 | head -n1)
2899         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2900         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2901         _cflags_speed="-O2"
2902         _cflags_size="-O1"
2903         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2904         if $_cc 2>&1 | grep -q Linker; then
2905             _ld_o='-out $@'
2906         else
2907             _ld_o='-Fe$@'
2908         fi
2909         _cc_o='-Fo $@'
2910         _cc_e='-P -Fi $@'
2911         _flags_filter=msvc_flags
2912         _ld_lib='lib%.a'
2913         _ld_path='-libpath:'
2914         _flags='-nologo'
2915         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2916         if [ $pfx = hostcc ]; then
2917             append _cflags -Dsnprintf=_snprintf
2918         fi
2919         disable stripping
2920     elif $_cc 2>&1 | grep -q Intel; then
2921         _type=icl
2922         _ident=$($cc 2>&1 | head -n1)
2923         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2924         # Not only is O3 broken on 13.x+ but it's slower on all previous versions (tested) as well
2925         _cflags_speed="-O2"
2926         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2927         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2928         if $_cc 2>&1 | grep -q Linker; then
2929             _ld_o='-out $@'
2930         else
2931             _ld_o='-Fe$@'
2932         fi
2933         _cc_o='-Fo $@'
2934         _cc_e='-P'
2935         _flags_filter=icl_flags
2936         _ld_lib='lib%.a'
2937         _ld_path='-libpath:'
2938         # -Qdiag-error to make icl error when presented with certain unknown arguments
2939         _flags='-nologo -Qdiag-error:4044,10157'
2940         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency with msvc which enables it by default
2941         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2942         if [ $pfx = hostcc ]; then
2943             append _cflags -Dsnprintf=_snprintf
2944         fi
2945     fi
2946
2947     eval ${pfx}_type=\$_type
2948     eval ${pfx}_ident=\$_ident
2949 }
2950
2951 set_ccvars(){
2952     eval ${1}_C=\${_cc_c-\${${1}_C}}
2953     eval ${1}_E=\${_cc_e-\${${1}_E}}
2954     eval ${1}_O=\${_cc_o-\${${1}_O}}
2955
2956     if [ -n "$_depflags" ]; then
2957         eval ${1}_DEPFLAGS=\$_depflags
2958     else
2959         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2960         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2961         eval DEP${1}FLAGS=\$_flags
2962     fi
2963 }
2964
2965 probe_cc cc "$cc"
2966 cflags_filter=$_flags_filter
2967 cflags_speed=$_cflags_speed
2968 cflags_size=$_cflags_size
2969 cflags_noopt=$_cflags_noopt
2970 add_cflags $_flags $_cflags
2971 cc_ldflags=$_ldflags
2972 set_ccvars CC
2973
2974 probe_cc hostcc "$host_cc"
2975 host_cflags_filter=$_flags_filter
2976 add_host_cflags  $_flags $_cflags
2977 set_ccvars HOSTCC
2978
2979 test -n "$cc_type" && enable $cc_type ||
2980     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2981
2982 : ${as_default:=$cc}
2983 : ${dep_cc_default:=$cc}
2984 : ${ld_default:=$cc}
2985 : ${host_ld_default:=$host_cc}
2986 set_default ar as dep_cc ld host_ld
2987
2988 probe_cc as "$as"
2989 asflags_filter=$_flags_filter
2990 add_asflags $_flags $_cflags
2991 set_ccvars AS
2992
2993 probe_cc ld "$ld"
2994 ldflags_filter=$_flags_filter
2995 add_ldflags $_flags $_ldflags
2996 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2997 LD_O=${_ld_o-$LD_O}
2998 LD_LIB=${_ld_lib-$LD_LIB}
2999 LD_PATH=${_ld_path-$LD_PATH}
3000
3001 probe_cc hostld "$host_ld"
3002 host_ldflags_filter=$_flags_filter
3003 add_host_ldflags $_flags $_ldflags
3004 HOSTLD_O=${_ld_o-$HOSTLD_O}
3005
3006 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3007     probe_cc depcc "$dep_cc"
3008     CCDEP=${_DEPCMD:-$DEPCMD}
3009     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3010     DEPCCFLAGS=$_flags
3011 fi
3012
3013 if $ar 2>&1 | grep -q Microsoft; then
3014     arflags="-nologo"
3015     ar_o='-out:$@'
3016 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3017     arflags="rq"
3018     ar_o='$@'
3019 else
3020     arflags="rc"
3021     ar_o='$@'
3022 fi
3023
3024 add_cflags $extra_cflags
3025 add_cxxflags $extra_cxxflags
3026 add_asflags $extra_cflags
3027
3028 if test -n "$sysroot"; then
3029     case "$cc_type" in
3030         gcc|llvm_gcc|clang)
3031             add_cppflags --sysroot="$sysroot"
3032             add_ldflags --sysroot="$sysroot"
3033         ;;
3034         tms470)
3035             add_cppflags -I"$sysinclude"
3036             add_ldflags  --sysroot="$sysroot"
3037         ;;
3038     esac
3039 fi
3040
3041 if test "$cpu" = host; then
3042     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
3043
3044     case "$cc_type" in
3045         gcc|llvm_gcc)
3046             check_native(){
3047                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3048                 sed -n "/cc1.*$1=/{
3049                             s/.*$1=\\([^ ]*\\).*/\\1/
3050                             p
3051                             q
3052                         }" $TMPE
3053             }
3054             cpu=$(check_native -march || check_native -mcpu)
3055         ;;
3056     esac
3057
3058     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
3059 fi
3060
3061 # Deal with common $arch aliases
3062 case "$arch" in
3063     aarch64|arm64)
3064         arch="aarch64"
3065     ;;
3066     arm*|iPad*)
3067         arch="arm"
3068     ;;
3069     mips*|IP*)
3070         arch="mips"
3071     ;;
3072     parisc*|hppa*)
3073         arch="parisc"
3074     ;;
3075     "Power Macintosh"|ppc*|powerpc*)
3076         arch="ppc"
3077     ;;
3078     s390|s390x)
3079         arch="s390"
3080     ;;
3081     sh4|sh)
3082         arch="sh4"
3083     ;;
3084     sun4u|sparc*)
3085         arch="sparc"
3086     ;;
3087     tilegx|tile-gx)
3088         arch="tilegx"
3089     ;;
3090     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3091         arch="x86"
3092     ;;
3093 esac
3094
3095 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3096 enable $arch
3097
3098 # Add processor-specific flags
3099 if enabled aarch64; then
3100
3101     case $cpu in
3102         armv*)
3103             cpuflags="-march=$cpu"
3104         ;;
3105         *)
3106             cpuflags="-mcpu=$cpu"
3107         ;;
3108     esac
3109
3110 elif enabled alpha; then
3111
3112     cpuflags="-mcpu=$cpu"
3113
3114 elif enabled arm; then
3115
3116     check_arm_arch() {
3117         check_cpp_condition stddef.h \
3118             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3119             $cpuflags
3120     }
3121
3122     probe_arm_arch() {
3123         if   check_arm_arch 4;        then echo armv4;
3124         elif check_arm_arch 4T;       then echo armv4t;
3125         elif check_arm_arch 5;        then echo armv5;
3126         elif check_arm_arch 5E;       then echo armv5e;
3127         elif check_arm_arch 5T;       then echo armv5t;
3128         elif check_arm_arch 5TE;      then echo armv5te;
3129         elif check_arm_arch 5TEJ;     then echo armv5te;
3130         elif check_arm_arch 6;        then echo armv6;
3131         elif check_arm_arch 6J;       then echo armv6j;
3132         elif check_arm_arch 6K;       then echo armv6k;
3133         elif check_arm_arch 6Z;       then echo armv6z;
3134         elif check_arm_arch 6ZK;      then echo armv6zk;
3135         elif check_arm_arch 6T2;      then echo armv6t2;
3136         elif check_arm_arch 7;        then echo armv7;
3137         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3138         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3139         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3140         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3141         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3142         fi
3143     }
3144
3145     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3146
3147     case $cpu in
3148         armv*)
3149             cpuflags="-march=$cpu"
3150             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3151         ;;
3152         *)
3153             cpuflags="-mcpu=$cpu"
3154             case $cpu in
3155                 cortex-a*)                               subarch=armv7a  ;;
3156                 cortex-r*)                               subarch=armv7r  ;;
3157                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3158                 arm11*)                                  subarch=armv6   ;;
3159                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3160                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3161                 *)                             subarch=$(probe_arm_arch) ;;
3162             esac
3163         ;;
3164     esac
3165
3166     case "$subarch" in
3167         armv5t*)    enable fast_clz                ;;
3168         armv[6-8]*) enable fast_clz fast_unaligned ;;
3169     esac
3170
3171 elif enabled avr32; then
3172
3173     case $cpu in
3174         ap7[02]0[0-2])
3175             subarch="avr32_ap"
3176             cpuflags="-mpart=$cpu"
3177         ;;
3178         ap)
3179             subarch="avr32_ap"
3180             cpuflags="-march=$cpu"
3181         ;;
3182         uc3[ab]*)
3183             subarch="avr32_uc"
3184             cpuflags="-mcpu=$cpu"
3185         ;;
3186         uc)
3187             subarch="avr32_uc"
3188             cpuflags="-march=$cpu"
3189         ;;
3190     esac
3191
3192 elif enabled bfin; then
3193
3194     cpuflags="-mcpu=$cpu"
3195
3196 elif enabled mips; then
3197
3198     cpuflags="-march=$cpu"
3199
3200     case $cpu in
3201         24kc)
3202             disable mipsfpu
3203             disable mipsdspr1
3204             disable mipsdspr2
3205         ;;
3206         24kf*)
3207             disable mipsdspr1
3208             disable mipsdspr2
3209         ;;
3210         24kec|34kc|1004kc)
3211             disable mipsfpu
3212             disable mipsdspr2
3213         ;;
3214         24kef*|34kf*|1004kf*)
3215             disable mipsdspr2
3216         ;;
3217         74kc)
3218             disable mipsfpu
3219         ;;
3220     esac
3221
3222 elif enabled ppc; then
3223
3224     case $(tolower $cpu) in
3225         601|ppc601|powerpc601)
3226             cpuflags="-mcpu=601"
3227             disable altivec
3228         ;;
3229         603*|ppc603*|powerpc603*)
3230             cpuflags="-mcpu=603"
3231             disable altivec
3232         ;;
3233         604*|ppc604*|powerpc604*)
3234             cpuflags="-mcpu=604"
3235             disable altivec
3236         ;;
3237         g3|75*|ppc75*|powerpc75*)
3238             cpuflags="-mcpu=750"
3239             disable altivec
3240         ;;
3241         g4|745*|ppc745*|powerpc745*)
3242             cpuflags="-mcpu=7450"
3243         ;;
3244         74*|ppc74*|powerpc74*)
3245             cpuflags="-mcpu=7400"
3246         ;;
3247         g5|970|ppc970|powerpc970)
3248             cpuflags="-mcpu=970"
3249         ;;
3250         power[3-7]*)
3251             cpuflags="-mcpu=$cpu"
3252         ;;
3253         cell)
3254             cpuflags="-mcpu=cell"
3255             enable ldbrx
3256         ;;
3257         e500mc)
3258             cpuflags="-mcpu=e500mc"
3259             disable altivec
3260         ;;
3261         e500v2)
3262             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3263             disable altivec
3264         ;;
3265         e500)
3266             cpuflags="-mcpu=8540 -mhard-float"
3267             disable altivec
3268         ;;
3269     esac
3270
3271 elif enabled sparc; then
3272
3273     case $cpu in
3274         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3275             cpuflags="-mcpu=$cpu"
3276             disable vis
3277         ;;
3278         ultrasparc*|niagara[234])
3279             cpuflags="-mcpu=$cpu"
3280         ;;
3281     esac
3282
3283 elif enabled x86; then
3284
3285     case $cpu in
3286         i[345]86|pentium)
3287             cpuflags="-march=$cpu"
3288             disable mmx
3289         ;;
3290         # targets that do NOT support nopl and conditional mov (cmov)
3291         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3292             cpuflags="-march=$cpu"
3293             disable i686
3294         ;;
3295         # targets that do support nopl and conditional mov (cmov)
3296         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3297             cpuflags="-march=$cpu"
3298             enable i686
3299             enable fast_cmov
3300         ;;
3301         # targets that do support conditional mov but on which it's slow
3302         pentium4|pentium4m|prescott|nocona)
3303             cpuflags="-march=$cpu"
3304             enable i686
3305             disable fast_cmov
3306         ;;
3307     esac
3308
3309 fi
3310
3311 if [ "$cpu" != generic ]; then
3312     add_cflags  $cpuflags
3313     add_asflags $cpuflags
3314 fi
3315
3316 # compiler sanity check
3317 check_exec <<EOF
3318 int main(void){ return 0; }
3319 EOF
3320 if test "$?" != 0; then
3321     echo "$cc is unable to create an executable file."
3322     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3323         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3324         echo "Only do this if you know what cross compiling means."
3325     fi
3326     die "C compiler test failed."
3327 fi
3328
3329 add_cppflags -D_ISOC99_SOURCE
3330 add_cxxflags -D__STDC_CONSTANT_MACROS
3331 check_cflags -std=c99
3332 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3333 #include <stdlib.h>
3334 EOF
3335 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3336 #include <stdlib.h>
3337 EOF
3338
3339 check_host_cflags -std=c99
3340 check_host_cflags -Wall
3341
3342 check_64bit(){
3343     arch32=$1
3344     arch64=$2
3345     expr=$3
3346     check_code cc "" "int test[2*($expr) - 1]" &&
3347         subarch=$arch64 || subarch=$arch32
3348 }
3349
3350 case "$arch" in
3351     aarch64|alpha|ia64)
3352         spic=$shared
3353     ;;
3354     mips)
3355         check_64bit mips mips64 '_MIPS_SIM > 1'
3356         spic=$shared
3357     ;;
3358     parisc)
3359         check_64bit parisc parisc64 'sizeof(void *) > 4'
3360         spic=$shared
3361     ;;
3362     ppc)
3363         check_64bit ppc ppc64 'sizeof(void *) > 4'
3364         spic=$shared
3365     ;;
3366     sparc)
3367         check_64bit sparc sparc64 'sizeof(void *) > 4'
3368         spic=$shared
3369     ;;
3370     x86)
3371         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3372         if test "$subarch" = "x86_64"; then
3373             spic=$shared
3374         fi
3375     ;;
3376     ppc)
3377         check_cc <<EOF && subarch="ppc64"
3378         int test[(int)sizeof(char*) - 7];
3379 EOF
3380     ;;
3381 esac
3382
3383 enable $subarch
3384 enabled spic && enable_weak pic
3385
3386 # OS specific
3387 case $target_os in
3388     haiku)
3389         prefix_default="/boot/common"
3390         network_extralibs="-lnetwork"
3391         host_libs=
3392         ;;
3393     sunos)
3394         FFSERVERLDFLAGS=""
3395         SHFLAGS='-shared -Wl,-h,$$(@F)'
3396         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3397         network_extralibs="-lsocket -lnsl"
3398         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3399         # When using suncc to build, the Solaris linker will mark
3400         # an executable with each instruction set encountered by
3401         # the Solaris assembler.  As our libraries contain their own
3402         # guards for processor-specific code, instead suppress
3403         # generation of the HWCAPS ELF section on Solaris x86 only.
3404         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3405         nm_default='nm -P -g'
3406         ;;
3407     netbsd)
3408         disable symver
3409         oss_indev_extralibs="-lossaudio"
3410         oss_outdev_extralibs="-lossaudio"
3411         enabled gcc || check_ldflags -Wl,-zmuldefs
3412         ;;
3413     openbsd|bitrig)
3414         disable symver
3415         SHFLAGS='-shared'
3416         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3417         SLIB_INSTALL_LINKS=
3418         oss_indev_extralibs="-lossaudio"
3419         oss_outdev_extralibs="-lossaudio"
3420         ;;
3421     dragonfly)
3422         disable symver
3423         ;;
3424     freebsd)
3425         ;;
3426     bsd/os)
3427         add_extralibs -lpoll -lgnugetopt
3428         strip="strip -d"
3429         ;;
3430     darwin)
3431         gas="gas-preprocessor.pl $cc"
3432         enabled ppc && add_asflags -force_cpusubtype_ALL
3433         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3434         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3435         strip="${strip} -x"
3436         add_ldflags -Wl,-dynamic,-search_paths_first
3437         SLIBSUF=".dylib"
3438         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3439         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3440         FFSERVERLDFLAGS=-Wl,-bind_at_load
3441         objformat="macho"
3442         enabled x86_64 && objformat="macho64"
3443         enabled_any pic shared ||
3444             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3445         ;;
3446     mingw32*)
3447         if test $target_os = "mingw32ce"; then
3448             disable network
3449         else
3450             target_os=mingw32
3451         fi
3452         LIBTARGET=i386
3453         if enabled x86_64; then
3454             LIBTARGET="i386:x86-64"
3455         elif enabled arm; then
3456             LIBTARGET=arm-wince
3457         fi
3458         check_ldflags -Wl,--nxcompat
3459         check_ldflags -Wl,--dynamicbase
3460         shlibdir_default="$bindir_default"
3461         SLIBPREF=""
3462         SLIBSUF=".dll"
3463         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3464         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3465         dlltool="${cross_prefix}dlltool"
3466         if check_cmd lib.exe -list; then
3467             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3468             if enabled x86_64; then
3469                 LIBTARGET=x64
3470             fi
3471         elif check_cmd $dlltool --version; then
3472             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3473         fi
3474         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3475         SLIB_INSTALL_LINKS=
3476         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3477         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3478         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3479         objformat="win32"
3480         ranlib=:
3481         enable dos_paths
3482         ;;
3483     win32|win64)
3484         if enabled shared; then
3485             # Link to the import library instead of the normal static library
3486             # for shared libs.
3487             LD_LIB='%.lib'
3488             # Cannot build shared and static libraries at the same time with
3489             # MSVC.
3490             disable static
3491         fi
3492         shlibdir_default="$bindir_default"
3493         SLIBPREF=""
3494         SLIBSUF=".dll"
3495         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3496         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3497         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3498         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3499         SLIB_INSTALL_LINKS=
3500         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3501         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3502         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3503         objformat="win32"
3504         ranlib=:
3505         enable dos_paths
3506         ;;
3507     cygwin*)
3508         target_os=cygwin
3509         shlibdir_default="$bindir_default"
3510         SLIBPREF="cyg"
3511         SLIBSUF=".dll"
3512         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3513         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3514         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3515         SLIB_INSTALL_LINKS=
3516         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3517         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3518         objformat="win32"
3519         enable dos_paths
3520         ;;
3521     *-dos|freedos|opendos)
3522         network_extralibs="-lsocket"
3523         objformat="coff"
3524         enable dos_paths
3525         add_cppflags -U__STRICT_ANSI__
3526         ;;
3527     linux)
3528         enable dv1394
3529         ;;
3530     irix*)
3531         target_os=irix
3532         ranlib="echo ignoring ranlib"
3533         ;;
3534     os/2*)
3535         strip="lxlite -CS"
3536         ln_s="cp -f"
3537         objformat="aout"
3538         add_cppflags -D_GNU_SOURCE
3539         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3540         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3541         FFSERVERLDFLAGS=""
3542         LIBSUF="_s.a"
3543         SLIBPREF=""
3544         SLIBSUF=".dll"
3545         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3546         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3547         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3548             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3549             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3550             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3551             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3552             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3553         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3554             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3555         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3556         enable dos_paths
3557         enable_weak os2threads
3558         ;;
3559     gnu/kfreebsd)
3560         add_cppflags -D_BSD_SOURCE
3561         ;;
3562     gnu)
3563         ;;
3564     qnx)
3565         add_cppflags -D_QNX_SOURCE
3566         network_extralibs="-lsocket"
3567         ;;
3568     symbian)
3569         SLIBSUF=".dll"
3570         enable dos_paths
3571         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3572         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3573         add_ldflags -Wl,--target1-abs,--no-undefined \
3574                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3575                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3576         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3577                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3578                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3579         ;;
3580     osf1)
3581         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3582         FFSERVERLDFLAGS=
3583         ;;
3584     minix)
3585         ;;
3586     plan9)
3587         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3588                      -D_REENTRANT_SOURCE        \
3589                      -D_RESEARCH_SOURCE         \
3590                      -DFD_SETSIZE=96            \
3591                      -DHAVE_SOCK_OPTS
3592         add_compat strtod.o strtod=avpriv_strtod
3593         network_extralibs='-lbsd'
3594         exeobjs=compat/plan9/main.o
3595         disable ffserver
3596         cp_f='cp'
3597         ;;
3598     none)
3599         ;;
3600     *)
3601         die "Unknown OS '$target_os'."
3602         ;;
3603 esac
3604
3605 # determine libc flavour
3606
3607 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3608 if check_cpp_condition features.h "defined __UCLIBC__"; then
3609     libc_type=uclibc
3610     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3611 elif check_cpp_condition features.h "defined __GLIBC__"; then
3612     libc_type=glibc
3613     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3614 # MinGW headers can be installed on Cygwin, so check for newlib first.
3615 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3616     libc_type=newlib
3617     add_cppflags -U__STRICT_ANSI__
3618 elif check_header _mingw.h; then
3619     libc_type=mingw
3620     check_cpp_condition _mingw.h \
3621         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3622             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3623         die "ERROR: MinGW runtime version must be >= 3.15."
3624     add_cppflags -U__STRICT_ANSI__
3625     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3626             __MINGW64_VERSION_MAJOR < 3"; then
3627         add_compat msvcrt/snprintf.o
3628         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3629     fi
3630 elif check_func_headers stdlib.h _get_doserrno; then
3631     libc_type=msvcrt
3632     add_compat strtod.o strtod=avpriv_strtod
3633     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3634                                  _snprintf=avpriv_snprintf  \
3635                                  vsnprintf=avpriv_vsnprintf
3636     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3637     # 0x601 by default unless something else is set by the user.
3638     # This can easily lead to us detecting functions only present
3639     # in such new versions and producing binaries requiring windows 7.0.
3640     # Therefore explicitly set the default to XP unless the user has
3641     # set something else on the command line.
3642     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3643 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3644     libc_type=klibc
3645 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3646     libc_type=bionic
3647     add_compat strtod.o strtod=avpriv_strtod
3648 fi
3649
3650 test -n "$libc_type" && enable $libc_type
3651
3652 # hacks for compiler/libc/os combinations
3653
3654 if enabled_all tms470 glibc; then
3655     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3656     add_cppflags -D__USER_LABEL_PREFIX__=
3657     add_cppflags -D__builtin_memset=memset
3658     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3659     add_cflags   -pds=48    # incompatible redefinition of macro
3660 fi
3661
3662 if enabled_all ccc glibc; then
3663     add_ldflags -Wl,-z,now  # calls to libots crash without this
3664 fi
3665
3666 esc(){
3667     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3668 }
3669
3670 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3671
3672 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3673
3674 set_default $PATHS_LIST
3675 set_default nm
3676
3677 # we need to build at least one lib type
3678 if ! enabled_any static shared; then
3679     cat <<EOF
3680 At least one library type must be built.
3681 Specify --enable-static to build the static libraries or --enable-shared to
3682 build the shared libraries as well. To only build the shared libraries specify
3683 --disable-static in addition to --enable-shared.
3684 EOF
3685     exit 1;
3686 fi
3687
3688 die_license_disabled() {
3689     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3690 }
3691
3692 die_license_disabled_gpl() {
3693     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3694 }
3695
3696 die_license_disabled gpl frei0r
3697 die_license_disabled gpl libcdio
3698 die_license_disabled gpl libutvideo
3699 die_license_disabled gpl libvidstab
3700 die_license_disabled gpl libx264
3701 die_license_disabled gpl libxavs
3702 die_license_disabled gpl libxvid
3703 die_license_disabled gpl x11grab
3704
3705 die_license_disabled nonfree libaacplus
3706 die_license_disabled nonfree libfaac
3707 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3708 enabled gpl && die_license_disabled_gpl nonfree openssl
3709
3710 die_license_disabled version3 libopencore_amrnb
3711 die_license_disabled version3 libopencore_amrwb
3712 die_license_disabled version3 libvo_aacenc
3713 die_license_disabled version3 libvo_amrwbenc
3714
3715 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3716
3717 disabled optimizations || check_cflags -fomit-frame-pointer
3718
3719 enable_weak_pic() {
3720     disabled pic && return
3721     enable pic
3722     add_cppflags -DPIC
3723     case "$target_os" in
3724     mingw*|cygwin*)
3725         ;;
3726     *)
3727         add_cflags -fPIC
3728         ;;
3729     esac
3730     add_asflags  -fPIC
3731 }
3732
3733 enabled pic && enable_weak_pic
3734
3735 check_cc <<EOF || die "Symbol mangling check failed."
3736 int ff_extern;
3737 EOF
3738 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3739 extern_prefix=${sym%%ff_extern*}
3740
3741 check_cc <<EOF && enable_weak inline_asm
3742 void foo(void) { __asm__ volatile ("" ::); }
3743 EOF
3744
3745 _restrict=
3746 for restrict_keyword in restrict __restrict__ __restrict; do
3747     check_cc <<EOF && _restrict=$restrict_keyword && break
3748 void foo(char * $restrict_keyword p);
3749 EOF
3750 done
3751
3752 check_cc <<EOF && enable attribute_packed
3753 struct { int x; } __attribute__((packed)) x;
3754 EOF
3755
3756 check_cc <<EOF && enable attribute_may_alias
3757 union { int x; } __attribute__((may_alias)) x;
3758 EOF
3759
3760 check_cc <<EOF || die "endian test failed"
3761 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3762 EOF
3763 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3764
3765 if enabled alpha; then
3766
3767     check_cflags -mieee
3768
3769 elif enabled arm; then
3770
3771     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3772 float func(float a, float b){ return a+b; }
3773 EOF
3774
3775     enabled thumb && check_cflags -mthumb || check_cflags -marm
3776     nogas=die
3777
3778     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3779         enable vfp_args
3780     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3781         case "${cross_prefix:-$cc}" in
3782             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3783             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3784 __asm__ (".eabi_attribute 28, 1");
3785 int main(void) { return 0; }
3786 EOF
3787         esac
3788         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3789     fi
3790
3791     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3792     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3793     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3794     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3795     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3796     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3797
3798     [ $target_os = linux ] ||
3799         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3800             $ARCH_EXT_LIST_ARM
3801
3802     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3803     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3804
3805     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3806
3807 elif enabled mips; then
3808
3809     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3810     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3811      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3812     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3813      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3814     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3815      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3816     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3817      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3818
3819 elif enabled parisc; then
3820
3821     if enabled gcc; then
3822         case $($cc -dumpversion) in
3823             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3824         esac
3825     fi
3826
3827 elif enabled ppc; then
3828
3829     enable local_aligned_8 local_aligned_16
3830
3831     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3832     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3833     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3834     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3835
3836     # AltiVec flags: The FSF version of GCC differs from the Apple version
3837     if enabled altivec; then
3838         nogas=warn
3839         check_cflags -maltivec -mabi=altivec &&
3840         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3841         check_cflags -faltivec
3842
3843         # check if our compiler supports Motorola AltiVec C API
3844         check_cc <<EOF || disable altivec
3845 $inc_altivec_h
3846 int main(void) {
3847     vector signed int v1 = (vector signed int) { 0 };
3848     vector signed int v2 = (vector signed int) { 1 };
3849     v1 = vec_add(v1, v2);
3850     return 0;
3851 }
3852 EOF
3853
3854         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3855     fi
3856
3857 elif enabled sparc; then
3858
3859     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3860
3861 elif enabled x86; then
3862
3863     check_builtin rdtsc    intrin.h   "__rdtsc()"
3864     check_builtin mm_empty mmintrin.h "_mm_empty()"
3865
3866     enable local_aligned_8 local_aligned_16
3867
3868     # check whether EBP is available on x86
3869     # As 'i' is stored on the stack, this program will crash
3870     # if the base pointer is used to access it because the
3871     # base pointer is cleared in the inline assembly code.
3872     check_exec_crash <<EOF && enable ebp_available
3873 volatile int i=0;
3874 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3875 return i;
3876 EOF
3877
3878     # check whether EBX is available on x86
3879     check_inline_asm ebx_available '""::"b"(0)' &&
3880         check_inline_asm ebx_available '"":::"%ebx"'
3881
3882     # check whether xmm clobbers are supported
3883     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3884
3885     # check whether binutils is new enough to compile SSSE3/MMXEXT
3886     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3887     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3888
3889     if ! disabled_any asm mmx yasm; then
3890         if check_cmd $yasmexe --version; then
3891             enabled x86_64 && yasm_extra="-m amd64"
3892             yasm_debug="-g dwarf2"
3893         elif check_cmd nasm -v; then
3894             yasmexe=nasm
3895             yasm_debug="-g -F dwarf"
3896             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3897         fi
3898
3899         YASMFLAGS="-f $objformat $yasm_extra"
3900         enabled pic               && append YASMFLAGS "-DPIC"
3901         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3902         case "$objformat" in
3903             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3904         esac
3905
3906         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3907             die "yasm not found, use --disable-yasm for a crippled build"
3908         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3909         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3910         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3911     fi
3912
3913     case "$cpu" in
3914         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3915             disable fast_clz
3916         ;;
3917     esac
3918
3919 fi
3920
3921 if enabled asm; then
3922     as=${gas:=$as}
3923     check_as <<EOF && enable gnu_as || \
3924         $nogas "GNU assembler not found, install gas-preprocessor"
3925 .macro m n
3926 \n: .int 0
3927 .endm
3928 m x
3929 EOF
3930 fi
3931
3932 check_ldflags -Wl,--as-needed
3933
3934 if check_func dlopen; then
3935     ldl=
3936 elif check_func dlopen -ldl; then
3937     ldl=-ldl
3938 fi
3939
3940 if ! disabled network; then
3941     check_type "sys/types.h sys/socket.h" socklen_t
3942     check_type netdb.h "struct addrinfo"
3943     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3944     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3945     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3946     check_type netinet/in.h "struct sockaddr_in6"
3947     check_type poll.h "struct pollfd"
3948     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3949     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3950     check_type netinet/sctp.h "struct sctp_event_subscribe"
3951     check_func getaddrinfo $network_extralibs
3952     check_func getservbyport $network_extralibs
3953     # Prefer arpa/inet.h over winsock2
3954     if check_header arpa/inet.h ; then
3955         check_func closesocket
3956     elif check_header winsock2.h ; then
3957         check_func_headers winsock2.h closesocket -lws2 &&
3958             network_extralibs="-lws2" ||
3959         { check_func_headers winsock2.h closesocket -lws2_32 &&
3960             network_extralibs="-lws2_32"; }
3961         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3962         check_type ws2tcpip.h socklen_t
3963         check_type ws2tcpip.h "struct addrinfo"
3964         check_type ws2tcpip.h "struct group_source_req"
3965         check_type ws2tcpip.h "struct ip_mreq_source"
3966         check_type ws2tcpip.h "struct ipv6_mreq"
3967         check_type winsock2.h "struct pollfd"
3968         check_type ws2tcpip.h "struct sockaddr_in6"
3969         check_type ws2tcpip.h "struct sockaddr_storage"
3970         check_struct winsock2.h "struct sockaddr" sa_len
3971     else
3972         disable network
3973     fi
3974 fi
3975
3976 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3977 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3978
3979 check_func  access
3980 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3981 check_func  fcntl
3982 check_func  fork
3983 check_func_headers stdlib.h getenv
3984 check_func  gethrtime
3985 check_func  getopt
3986 check_func  getrusage
3987 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3988 check_func  gettimeofday
3989 check_func  inet_aton $network_extralibs
3990 check_func  isatty
3991 check_func  localtime_r
3992 check_func  ${malloc_prefix}memalign            && enable memalign
3993 check_func  mkstemp
3994 check_func  mmap
3995 check_func  mprotect
3996 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3997 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3998 check_func  setrlimit
3999 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4000 check_func  strerror_r
4001 check_func  sched_getaffinity
4002 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4003 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4004 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4005 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4006 check_func  sysconf
4007 check_func  sysctl
4008 check_func  usleep
4009 check_func_headers conio.h kbhit
4010 check_func_headers windows.h PeekNamedPipe
4011 check_func_headers io.h setmode
4012 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4013 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4014 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4015 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4016 check_func_headers windows.h GetProcessAffinityMask
4017 check_func_headers windows.h GetProcessTimes
4018 check_func_headers windows.h GetSystemTimeAsFileTime
4019 check_func_headers windows.h MapViewOfFile
4020 check_func_headers windows.h SetConsoleTextAttribute
4021 check_func_headers windows.h Sleep
4022 check_func_headers windows.h VirtualAlloc
4023 check_func_headers glob.h glob
4024 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4025
4026 check_header cl/cl.h
4027 check_header direct.h
4028 check_header dlfcn.h
4029 check_header dxva.h
4030 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4031 check_header io.h
4032 check_header libcrystalhd/libcrystalhd_if.h
4033 check_header malloc.h
4034 check_header poll.h
4035 check_header sys/mman.h
4036 check_header sys/param.h