configure: Factor out vp56dsp module
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --prefix=PREFIX          install in PREFIX [$prefix]
82   --bindir=DIR             install binaries in DIR [PREFIX/bin]
83   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
84   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
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   --enable-rpath           use rpath when linking programs [USE WITH CARE]
90
91 Licensing options:
92   --enable-gpl             allow use of GPL code, the resulting libs
93                            and binaries will be under GPL [no]
94   --enable-version3        upgrade (L)GPL to version 3 [no]
95   --enable-nonfree         allow use of nonfree code, the resulting libs
96                            and binaries will be unredistributable [no]
97
98 Configuration options:
99   --disable-static         do not build static libraries [no]
100   --enable-shared          build shared libraries [no]
101   --enable-small           optimize for size instead of speed
102   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
103   --enable-gray            enable full grayscale support (slower color)
104   --disable-swscale-alpha  disable alpha channel support in swscale
105   --disable-all            disable building components, libraries and programs
106
107 Program options:
108   --disable-programs       do not build command line programs
109   --disable-avconv         disable avconv build
110   --disable-avplay         disable avplay build
111   --disable-avprobe        disable avprobe build
112   --disable-avserver       deprecated, does nothing
113
114 Component options:
115   --disable-doc            do not build documentation
116   --disable-avdevice       disable libavdevice build
117   --disable-avcodec        disable libavcodec build
118   --disable-avformat       disable libavformat build
119   --disable-avutil         disable libavutil build
120   --disable-swscale        disable libswscale build
121   --disable-avfilter       disable video filter support [no]
122   --disable-avresample     disable libavresample build [no]
123   --disable-pthreads       disable pthreads [auto]
124   --disable-w32threads     disable Win32 threads [auto]
125   --disable-network        disable network support [no]
126   --disable-dct            disable DCT code
127   --disable-error-resilience disable error resilience code
128   --disable-lsp            disable LSP code
129   --disable-lzo            disable LZO decoder code
130   --disable-mdct           disable MDCT code
131   --disable-rdft           disable RDFT code
132   --disable-fft            disable FFT code
133   --disable-faan           disable floating point AAN (I)DCT code
134
135 Hardware accelerators:
136   --enable-d3d11va         enable D3D11VA code
137   --enable-dxva2           enable DXVA2 code
138   --enable-vaapi           enable VAAPI code
139   --enable-vda             enable VDA code
140   --enable-vdpau           enable VDPAU code
141
142 Individual component options:
143   --disable-everything     disable all components listed below
144   --disable-encoder=NAME   disable encoder NAME
145   --enable-encoder=NAME    enable encoder NAME
146   --disable-encoders       disable all encoders
147   --disable-decoder=NAME   disable decoder NAME
148   --enable-decoder=NAME    enable decoder NAME
149   --disable-decoders       disable all decoders
150   --disable-hwaccel=NAME   disable hwaccel NAME
151   --enable-hwaccel=NAME    enable hwaccel NAME
152   --disable-hwaccels       disable all hwaccels
153   --disable-muxer=NAME     disable muxer NAME
154   --enable-muxer=NAME      enable muxer NAME
155   --disable-muxers         disable all muxers
156   --disable-demuxer=NAME   disable demuxer NAME
157   --enable-demuxer=NAME    enable demuxer NAME
158   --disable-demuxers       disable all demuxers
159   --enable-parser=NAME     enable parser NAME
160   --disable-parser=NAME    disable parser NAME
161   --disable-parsers        disable all parsers
162   --enable-bsf=NAME        enable bitstream filter NAME
163   --disable-bsf=NAME       disable bitstream filter NAME
164   --disable-bsfs           disable all bitstream filters
165   --enable-protocol=NAME   enable protocol NAME
166   --disable-protocol=NAME  disable protocol NAME
167   --disable-protocols      disable all protocols
168   --enable-indev=NAME      enable input device NAME
169   --disable-indev=NAME     disable input device NAME
170   --disable-indevs         disable input devices
171   --enable-outdev=NAME     enable output device NAME
172   --disable-outdev=NAME    disable output device NAME
173   --disable-outdevs        disable output devices
174   --disable-devices        disable all devices
175   --enable-filter=NAME     enable filter NAME
176   --disable-filter=NAME    disable filter NAME
177   --disable-filters        disable all filters
178
179 External library support:
180   --enable-avisynth        enable reading of AviSynth script files [no]
181   --enable-bzlib           enable bzlib [autodetect]
182   --enable-frei0r          enable frei0r video filtering
183   --enable-gnutls          enable gnutls [no]
184   --enable-libbs2b         enable bs2b DSP library [no]
185   --enable-libcdio         enable audio CD grabbing with libcdio
186   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
187                            and libraw1394 [no]
188   --enable-libdcadec       enable DCA decoding via libdcadec [no]
189   --enable-libfaac         enable AAC encoding via libfaac [no]
190   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
191   --enable-libfreetype     enable libfreetype [no]
192   --enable-libgsm          enable GSM de/encoding via libgsm [no]
193   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
194   --enable-libmfx          enable HW acceleration through libmfx
195   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
196   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
197   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
198   --enable-libopencv       enable video filtering via libopencv [no]
199   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
200   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
201   --enable-libopus         enable Opus de/encoding via libopus [no]
202   --enable-libpulse        enable Pulseaudio input via libpulse [no]
203   --enable-librtmp         enable RTMP[E] support via librtmp [no]
204   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
205   --enable-libsnappy       enable Snappy compression [no]
206   --enable-libspeex        enable Speex de/encoding via libspeex [no]
207   --enable-libtheora       enable Theora encoding via libtheora [no]
208   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
209   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
210   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
211   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
212   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
213   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
214   --enable-libwebp         enable WebP encoding via libwebp [no]
215   --enable-libx264         enable H.264 encoding via x264 [no]
216   --enable-libx265         enable HEVC encoding via x265 [no]
217   --enable-libxavs         enable AVS encoding via xavs [no]
218   --enable-libxcb          enable X11 grabbing using XCB [no]
219   --enable-libxcb-shm      enable X11 grabbing shm communication [auto]
220   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [auto]
221   --enable-libxvid         enable Xvid encoding via xvidcore,
222                            native MPEG-4/Xvid encoder exists [no]
223   --enable-mmal            enable decoding via MMAL [no]
224   --enable-nvenc           enable encoding via NVENC [no]
225   --enable-openssl         enable openssl [no]
226   --enable-x11grab         enable X11 grabbing (legacy) [no]
227   --enable-zlib            enable zlib [autodetect]
228
229 Toolchain options:
230   --arch=ARCH              select architecture [$arch]
231   --cpu=CPU                select the minimum required CPU (affects
232                            instruction selection, may crash on older CPUs)
233   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
234   --enable-cross-compile   assume a cross-compiler is used
235   --sysroot=PATH           root of cross-build tree
236   --sysinclude=PATH        location of cross-build system headers
237   --target-os=OS           compiler targets OS [$target_os]
238   --target-exec=CMD        command to run executables on target
239   --target-path=DIR        path to view of build directory on target
240   --target-samples=DIR     path to samples directory on target
241   --toolchain=NAME         set tool defaults according to NAME
242   --nm=NM                  use nm tool
243   --ar=AR                  use archive tool AR [$ar_default]
244   --as=AS                  use assembler AS [$as_default]
245   --cc=CC                  use C compiler CC [$cc_default]
246   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
247   --ld=LD                  use linker LD
248   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
249   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
250   --host-cc=HOSTCC         use host C compiler HOSTCC
251   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
252   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
253   --host-ld=HOSTLD         use host linker HOSTLD
254   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
255   --host-libs=HLIBS        use libs HLIBS when linking for host
256   --host-os=OS             compiler host OS [$target_os]
257   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
258   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
259   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
260   --extra-libs=ELIBS       add ELIBS [$ELIBS]
261   --extra-version=STRING   version string suffix []
262   --optflags=OPTFLAGS      override optimization-related compiler flags
263   --build-suffix=SUFFIX    library name suffix []
264   --enable-pic             build position-independent code
265   --enable-thumb           compile for Thumb instruction set
266   --enable-lto             use link-time optimization
267   --env="ENV=override"     override the environment variables
268
269 Advanced options (experts only):
270   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
271   --disable-symver         disable symbol versioning
272   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
273   --disable-safe-bitstream-reader
274                            disable buffer boundary checking in bitreaders
275                            (faster, but may crash)
276   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
277   --enable-sram            allow use of on-chip SRAM
278
279 Optimization options (experts only):
280   --disable-asm            disable all assembly optimizations
281   --disable-altivec        disable AltiVec optimizations
282   --disable-vsx            disable VSX optimizations
283   --disable-power8         disable POWER8 optimizations
284   --disable-amd3dnow       disable 3DNow! optimizations
285   --disable-amd3dnowext    disable 3DNow! extended optimizations
286   --disable-mmx            disable MMX optimizations
287   --disable-mmxext         disable MMXEXT optimizations
288   --disable-sse            disable SSE optimizations
289   --disable-sse2           disable SSE2 optimizations
290   --disable-sse3           disable SSE3 optimizations
291   --disable-ssse3          disable SSSE3 optimizations
292   --disable-sse4           disable SSE4 optimizations
293   --disable-sse42          disable SSE4.2 optimizations
294   --disable-avx            disable AVX optimizations
295   --disable-xop            disable XOP optimizations
296   --disable-fma3           disable FMA3 optimizations
297   --disable-fma4           disable FMA4 optimizations
298   --disable-avx2           disable AVX2 optimizations
299   --disable-armv5te        disable armv5te optimizations
300   --disable-armv6          disable armv6 optimizations
301   --disable-armv6t2        disable armv6t2 optimizations
302   --disable-vfp            disable VFP optimizations
303   --disable-neon           disable NEON optimizations
304   --disable-inline-asm     disable use of inline assembly
305   --disable-yasm           disable use of nasm/yasm assembly
306
307 Developer options (useful when working on Libav itself):
308   --disable-debug          disable debugging symbols
309   --enable-debug=LEVEL     set the debug level [$debuglevel]
310   --disable-optimizations  disable compiler optimizations
311   --enable-extra-warnings  enable more compiler warnings
312   --samples=PATH           location of test samples for FATE, if not set use
313                            \$LIBAV_SAMPLES at make invocation time.
314   --enable-neon-clobber-test check NEON registers for clobbering (should be
315                            used only for debugging purposes)
316   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
317                            should be used only for debugging purposes)
318   --enable-random          randomly enable/disable components
319   --disable-random
320   --enable-random=LIST     randomly enable/disable specific components or
321   --disable-random=LIST    component groups. LIST is a comma-separated list
322                            of NAME[:PROB] entries where NAME is a component
323                            (group) and PROB the probability associated with
324                            NAME (default 0.5).
325   --random-seed=VALUE      seed value for --enable/disable-random
326   --disable-valgrind-backtrace do not print a backtrace under Valgrind
327                            (only applies to --disable-optimizations builds)
328
329 NOTE: Object files are built at the place where configure is launched.
330 EOF
331   exit 0
332 }
333
334 quotes='""'
335
336 log(){
337     echo "$@" >> $logfile
338 }
339
340 log_file(){
341     log BEGIN $1
342     pr -n -t $1 >> $logfile
343     log END $1
344 }
345
346 echolog(){
347     log "$@"
348     echo "$@"
349 }
350
351 warn(){
352     log "WARNING: $*"
353     WARNINGS="${WARNINGS}WARNING: $*\n"
354 }
355
356 die(){
357     echolog "$@"
358     cat <<EOF
359
360 If you think configure made a mistake, make sure you are using the latest
361 version from Git.  If the latest version fails, report the problem to the
362 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
363 EOF
364     if disabled logging; then
365         cat <<EOF
366 Rerun configure with logging enabled (do not use --disable-logging), and
367 include the log this produces with your report.
368 EOF
369     else
370         cat <<EOF
371 Include the log file "$logfile" produced by configure as this will help
372 solving the problem.
373 EOF
374     fi
375     exit 1
376 }
377
378 # Avoid locale weirdness, besides we really just want to translate ASCII.
379 toupper(){
380     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
381 }
382
383 tolower(){
384     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
385 }
386
387 c_escape(){
388     echo "$*" | sed 's/["\\]/\\\0/g'
389 }
390
391 sh_quote(){
392     v=$(echo "$1" | sed "s/'/'\\\\''/g")
393     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
394     echo "$v"
395 }
396
397 cleanws(){
398     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
399 }
400
401 filter(){
402     pat=$1
403     shift
404     for v; do
405         eval "case $v in $pat) echo $v ;; esac"
406     done
407 }
408
409 filter_out(){
410     pat=$1
411     shift
412     for v; do
413         eval "case $v in $pat) ;; *) echo $v ;; esac"
414     done
415 }
416
417 map(){
418     m=$1
419     shift
420     for v; do eval $m; done
421 }
422
423 add_suffix(){
424     suffix=$1
425     shift
426     for v; do echo ${v}${suffix}; done
427 }
428
429 set_all(){
430     value=$1
431     shift
432     for var in $*; do
433         eval $var=$value
434     done
435 }
436
437 set_weak(){
438     value=$1
439     shift
440     for var; do
441         eval : \${$var:=$value}
442     done
443 }
444
445 sanitize_var_name(){
446     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
447 }
448
449 set_safe(){
450     var=$1
451     shift
452     eval $(sanitize_var_name "$var")='$*'
453 }
454
455 get_safe(){
456     eval echo \$$(sanitize_var_name "$1")
457 }
458
459 pushvar(){
460     for pvar in $*; do
461         eval level=\${${pvar}_level:=0}
462         eval ${pvar}_${level}="\$$pvar"
463         eval ${pvar}_level=$(($level+1))
464     done
465 }
466
467 popvar(){
468     for pvar in $*; do
469         eval level=\${${pvar}_level:-0}
470         test $level = 0 && continue
471         eval level=$(($level-1))
472         eval $pvar="\${${pvar}_${level}}"
473         eval ${pvar}_level=$level
474         eval unset ${pvar}_${level}
475     done
476 }
477
478 enable(){
479     set_all yes $*
480 }
481
482 disable(){
483     set_all no $*
484 }
485
486 enable_weak(){
487     set_weak yes $*
488 }
489
490 disable_weak(){
491     set_weak no $*
492 }
493
494 enable_safe(){
495     for var; do
496         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
497     done
498 }
499
500 disable_safe(){
501     for var; do
502         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
503     done
504 }
505
506 do_enable_deep(){
507     for var; do
508         enabled $var && continue
509         eval sel="\$${var}_select"
510         eval sgs="\$${var}_suggest"
511         pushvar var sgs
512         enable_deep $sel
513         popvar sgs
514         enable_deep_weak $sgs
515         popvar var
516     done
517 }
518
519 enable_deep(){
520     do_enable_deep $*
521     enable $*
522 }
523
524 enable_deep_weak(){
525     for var; do
526         disabled $var && continue
527         pushvar var
528         do_enable_deep $var
529         popvar var
530         enable_weak $var
531     done
532 }
533
534 enabled(){
535     test "${1#!}" = "$1" && op== || op=!=
536     eval test "x\$${1#!}" $op "xyes"
537 }
538
539 disabled(){
540     test "${1#!}" = "$1" && op== || op=!=
541     eval test "x\$${1#!}" $op "xno"
542 }
543
544 enabled_all(){
545     for opt; do
546         enabled $opt || return 1
547     done
548 }
549
550 disabled_all(){
551     for opt; do
552         disabled $opt || return 1
553     done
554 }
555
556 enabled_any(){
557     for opt; do
558         enabled $opt && return 0
559     done
560 }
561
562 disabled_any(){
563     for opt; do
564         disabled $opt && return 0
565     done
566     return 1
567 }
568
569 set_default(){
570     for opt; do
571         eval : \${$opt:=\$${opt}_default}
572     done
573 }
574
575 is_in(){
576     value=$1
577     shift
578     for var in $*; do
579         [ $var = $value ] && return 0
580     done
581     return 1
582 }
583
584 do_check_deps(){
585     for cfg; do
586         cfg="${cfg#!}"
587         enabled ${cfg}_checking && die "Circular dependency for $cfg."
588         disabled ${cfg}_checking && continue
589         enable ${cfg}_checking
590         append allopts $cfg
591
592         eval dep_all="\$${cfg}_deps"
593         eval dep_any="\$${cfg}_deps_any"
594         eval dep_sel="\$${cfg}_select"
595         eval dep_sgs="\$${cfg}_suggest"
596         eval dep_ifa="\$${cfg}_if"
597         eval dep_ifn="\$${cfg}_if_any"
598
599         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
600         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
601         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
602
603         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
604         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
605         enabled_all  $dep_all || disable $cfg
606         enabled_any  $dep_any || disable $cfg
607         disabled_any $dep_sel && disable $cfg
608
609         if enabled $cfg; then
610             enable_deep $dep_sel
611             enable_deep_weak $dep_sgs
612         fi
613
614         disable ${cfg}_checking
615     done
616 }
617
618 check_deps(){
619     unset allopts
620
621     do_check_deps "$@"
622
623     for cfg in $allopts; do
624         enabled $cfg || continue
625         eval dep_extralibs="\$${cfg}_extralibs"
626         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
627     done
628 }
629
630 print_config(){
631     pfx=$1
632     files=$2
633     shift 2
634     map 'eval echo "$v \${$v:-no}"' "$@" |
635     awk "BEGIN { split(\"$files\", files) }
636         {
637             c = \"$pfx\" toupper(\$1);
638             v = \$2;
639             sub(/yes/, 1, v);
640             sub(/no/,  0, v);
641             for (f in files) {
642                 file = files[f];
643                 if (file ~ /\\.h\$/) {
644                     printf(\"#define %s %d\\n\", c, v) >>file;
645                 } else if (file ~ /\\.asm\$/) {
646                     printf(\"%%define %s %d\\n\", c, v) >>file;
647                 } else if (file ~ /\\.mak\$/) {
648                     n = -v ? \"\" : \"!\";
649                     printf(\"%s%s=yes\\n\", n, c) >>file;
650                 }
651             }
652         }"
653 }
654
655 print_enabled(){
656     suf=$1
657     shift
658     for v; do
659         enabled $v && printf "%s\n" ${v%$suf};
660     done
661 }
662
663 append(){
664     var=$1
665     shift
666     eval "$var=\"\$$var $*\""
667 }
668
669 prepend(){
670     var=$1
671     shift
672     eval "$var=\"$* \$$var\""
673 }
674
675 unique(){
676     var=$1
677     uniq_list=""
678     for tok in $(eval echo \$$var); do
679         uniq_list="$(filter_out $tok $uniq_list) $tok"
680     done
681     eval "$var=\"${uniq_list}\""
682 }
683
684 add_cppflags(){
685     append CPPFLAGS "$@"
686 }
687
688 add_cflags(){
689     append CFLAGS $($cflags_filter "$@")
690 }
691
692 add_asflags(){
693     append ASFLAGS $($asflags_filter "$@")
694 }
695
696 add_ldflags(){
697     append LDFLAGS $($ldflags_filter "$@")
698 }
699
700 add_ldexeflags(){
701     append LDEXEFLAGS $($ldflags_filter "$@")
702 }
703
704 add_stripflags(){
705     append STRIPFLAGS "$@"
706 }
707
708 add_extralibs(){
709     prepend extralibs $($ldflags_filter "$@")
710 }
711
712 add_host_cppflags(){
713     append host_cppflags "$@"
714 }
715
716 add_host_cflags(){
717     append host_cflags $($host_cflags_filter "$@")
718 }
719
720 add_host_ldflags(){
721     append host_ldflags $($host_ldflags_filter "$@")
722 }
723
724 add_compat(){
725     append compat_objs $1
726     shift
727     map 'add_cppflags -D$v' "$@"
728 }
729
730 check_cmd(){
731     log "$@"
732     "$@" >> $logfile 2>&1
733 }
734
735 cc_o(){
736     eval printf '%s\\n' $CC_O
737 }
738
739 cc_e(){
740     eval printf '%s\\n' $CC_E
741 }
742
743 check_cc(){
744     log check_cc "$@"
745     cat > $TMPC
746     log_file $TMPC
747     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
748 }
749
750 check_cpp(){
751     log check_cpp "$@"
752     cat > $TMPC
753     log_file $TMPC
754     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
755 }
756
757 as_o(){
758     eval printf '%s\\n' $AS_O
759 }
760
761 check_as(){
762     log check_as "$@"
763     cat > $TMPS
764     log_file $TMPS
765     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
766 }
767
768 check_inline_asm(){
769     log check_inline_asm "$@"
770     name="$1"
771     code="$2"
772     shift 2
773     disable $name
774     check_cc "$@" <<EOF && enable $name
775 void foo(void){ __asm__ volatile($code); }
776 EOF
777 }
778
779 check_insn(){
780     log check_insn "$@"
781     check_inline_asm ${1}_inline "\"$2\""
782     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
783 }
784
785 check_yasm(){
786     log check_yasm "$@"
787     echo "$1" > $TMPS
788     log_file $TMPS
789     shift 1
790     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
791 }
792
793 ld_o(){
794     eval printf '%s\\n' $LD_O
795 }
796
797 check_ld(){
798     log check_ld "$@"
799     flags=$(filter_out '-l*' "$@")
800     libs=$(filter '-l*' "$@")
801     check_cc $($cflags_filter $flags) || return
802     flags=$($ldflags_filter $flags)
803     libs=$($ldflags_filter $libs)
804     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
805 }
806
807 print_include(){
808     hdr=$1
809     test "${hdr%.h}" = "${hdr}" &&
810         echo "#include $hdr"    ||
811         echo "#include <$hdr>"
812 }
813
814 check_code(){
815     log check_code "$@"
816     check=$1
817     headers=$2
818     code=$3
819     shift 3
820     {
821         for hdr in $headers; do
822             print_include $hdr
823         done
824         echo "int main(void) { $code; return 0; }"
825     } | check_$check "$@"
826 }
827
828 check_cppflags(){
829     log check_cppflags "$@"
830     check_cc "$@" <<EOF && append CPPFLAGS "$@"
831 int x;
832 EOF
833 }
834
835 test_cflags(){
836     log test_cflags "$@"
837     set -- $($cflags_filter "$@")
838     check_cc "$@" <<EOF
839 int x;
840 EOF
841 }
842
843 check_cflags(){
844     log check_cflags "$@"
845     test_cflags "$@" && add_cflags "$@"
846 }
847
848 test_ldflags(){
849     log test_ldflags "$@"
850     check_ld "$@" <<EOF
851 int main(void){ return 0; }
852 EOF
853 }
854
855 check_ldflags(){
856     log check_ldflags "$@"
857     test_ldflags "$@" && add_ldflags "$@"
858 }
859
860 test_stripflags(){
861     log test_stripflags "$@"
862     # call check_cc to get a fresh TMPO
863     check_cc <<EOF
864 int main(void) { return 0; }
865 EOF
866     check_cmd $strip $STRIPFLAGS "$@" $TMPO
867 }
868
869 check_stripflags(){
870     log check_stripflags "$@"
871     test_stripflags "$@" && add_stripflags "$@"
872 }
873
874 check_header(){
875     log check_header "$@"
876     header=$1
877     shift
878     disable_safe $header
879     check_cpp "$@" <<EOF && enable_safe $header
880 #include <$header>
881 int x;
882 EOF
883 }
884
885 check_func(){
886     log check_func "$@"
887     func=$1
888     shift
889     disable $func
890     check_ld "$@" <<EOF && enable $func
891 extern int $func();
892 int main(void){ $func(); }
893 EOF
894 }
895
896 check_mathfunc(){
897     log check_mathfunc "$@"
898     func=$1
899     narg=$2
900     shift 2
901     test $narg = 2 && args="f, g" || args="f"
902     disable $func
903     check_ld "$@" <<EOF && enable $func
904 #include <math.h>
905 float foo(float f, float g) { return $func($args); }
906 int main(void){ return 0; }
907 EOF
908 }
909
910 check_func_headers(){
911     log check_func_headers "$@"
912     headers=$1
913     funcs=$2
914     shift 2
915     {
916         for hdr in $headers; do
917             print_include $hdr
918         done
919         for func in $funcs; do
920             echo "long check_$func(void) { return (long) $func; }"
921         done
922         echo "int main(void) { return 0; }"
923     } | check_ld "$@" && enable $funcs && enable_safe $headers
924 }
925
926 check_cpp_condition(){
927     log check_cpp_condition "$@"
928     header=$1
929     condition=$2
930     shift 2
931     check_cpp "$@" <<EOF
932 #include <$header>
933 #if !($condition)
934 #error "unsatisfied condition: $condition"
935 #endif
936 EOF
937 }
938
939 check_lib(){
940     log check_lib "$@"
941     header="$1"
942     func="$2"
943     shift 2
944     check_header $header && check_func $func "$@" && add_extralibs "$@"
945 }
946
947 check_lib2(){
948     log check_lib2 "$@"
949     headers="$1"
950     funcs="$2"
951     shift 2
952     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
953 }
954
955 check_pkg_config(){
956     log check_pkg_config "$@"
957     pkg="$1"
958     headers="$2"
959     funcs="$3"
960     shift 3
961     check_cmd $pkg_config --exists --print-errors $pkg || return
962     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
963     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
964     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
965         set_safe "${pkg}_cflags" $pkg_cflags   &&
966         set_safe "${pkg}_libs"   $pkg_libs
967 }
968
969 check_exec(){
970     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
971 }
972
973 check_exec_crash(){
974     code=$(cat)
975
976     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
977     # are safe but may not be available everywhere.  Thus we use
978     # raise(SIGTERM) instead.  The check is run in a subshell so we
979     # can redirect the "Terminated" message from the shell.  SIGBUS
980     # is not defined by standard C so it is used conditionally.
981
982     (check_exec "$@") >> $logfile 2>&1 <<EOF
983 #include <signal.h>
984 static void sighandler(int sig){
985     raise(SIGTERM);
986 }
987 int foo(void){
988     $code
989 }
990 int (*func_ptr)(void) = foo;
991 int main(void){
992     signal(SIGILL, sighandler);
993     signal(SIGFPE, sighandler);
994     signal(SIGSEGV, sighandler);
995 #ifdef SIGBUS
996     signal(SIGBUS, sighandler);
997 #endif
998     return func_ptr();
999 }
1000 EOF
1001 }
1002
1003 check_type(){
1004     log check_type "$@"
1005     headers=$1
1006     type=$2
1007     shift 2
1008     disable_safe "$type"
1009     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1010 }
1011
1012 check_struct(){
1013     log check_struct "$@"
1014     headers=$1
1015     struct=$2
1016     member=$3
1017     shift 3
1018     disable_safe "${struct}_${member}"
1019     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1020         enable_safe "${struct}_${member}"
1021 }
1022
1023 check_builtin(){
1024     log check_builtin "$@"
1025     name=$1
1026     headers=$2
1027     builtin=$3
1028     shift 3
1029     disable "$name"
1030     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1031 }
1032
1033 check_compile_assert(){
1034     log check_compile_assert "$@"
1035     name=$1
1036     headers=$2
1037     condition=$3
1038     shift 3
1039     disable "$name"
1040     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1041 }
1042
1043 require(){
1044     name="$1"
1045     header="$2"
1046     func="$3"
1047     shift 3
1048     check_lib $header $func "$@" || die "ERROR: $name not found"
1049 }
1050
1051 require2(){
1052     name="$1"
1053     headers="$2"
1054     func="$3"
1055     shift 3
1056     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1057 }
1058
1059 require_pkg_config(){
1060     pkg="$1"
1061     check_pkg_config "$@" || die "ERROR: $pkg not found"
1062     add_cflags    $(get_safe "${pkg}_cflags")
1063     add_extralibs $(get_safe "${pkg}_libs")
1064 }
1065
1066 hostcc_e(){
1067     eval printf '%s\\n' $HOSTCC_E
1068 }
1069
1070 hostcc_o(){
1071     eval printf '%s\\n' $HOSTCC_O
1072 }
1073
1074 check_host_cc(){
1075     log check_host_cc "$@"
1076     cat > $TMPC
1077     log_file $TMPC
1078     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1079 }
1080
1081 check_host_cpp(){
1082     log check_host_cpp "$@"
1083     cat > $TMPC
1084     log_file $TMPC
1085     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1086 }
1087
1088 check_host_cppflags(){
1089     log check_host_cppflags "$@"
1090     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1091 int x;
1092 EOF
1093 }
1094
1095 check_host_cflags(){
1096     log check_host_cflags "$@"
1097     set -- $($host_cflags_filter "$@")
1098     check_host_cc "$@" <<EOF && append host_cflags "$@"
1099 int x;
1100 EOF
1101 }
1102
1103 check_host_cpp_condition(){
1104     log check_host_cpp_condition "$@"
1105     header=$1
1106     condition=$2
1107     shift 2
1108     check_host_cpp "$@" <<EOF
1109 #include <$header>
1110 #if !($condition)
1111 #error "unsatisfied condition: $condition"
1112 #endif
1113 EOF
1114 }
1115
1116 apply(){
1117     file=$1
1118     shift
1119     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1120 }
1121
1122 cp_if_changed(){
1123     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1124     mkdir -p "$(dirname $2)"
1125     $cp_f "$1" "$2"
1126 }
1127
1128 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1129 # system-dependent things.
1130
1131 COMPONENT_LIST="
1132     bsfs
1133     decoders
1134     demuxers
1135     encoders
1136     filters
1137     hwaccels
1138     indevs
1139     muxers
1140     outdevs
1141     parsers
1142     protocols
1143 "
1144
1145 EXAMPLE_LIST="
1146     avcodec_example
1147     filter_audio_example
1148     metadata_example
1149     output_example
1150     qsvdec_example
1151     transcode_aac_example
1152 "
1153
1154 EXTERNAL_LIBRARY_LIST="
1155     avisynth
1156     bzlib
1157     frei0r
1158     gnutls
1159     libbs2b
1160     libcdio
1161     libdc1394
1162     libdcadec
1163     libfaac
1164     libfdk_aac
1165     libfontconfig
1166     libfreetype
1167     libgsm
1168     libilbc
1169     libmfx
1170     libmp3lame
1171     libopencore_amrnb
1172     libopencore_amrwb
1173     libopencv
1174     libopenh264
1175     libopenjpeg
1176     libopus
1177     libpulse
1178     librtmp
1179     libschroedinger
1180     libsnappy
1181     libspeex
1182     libtheora
1183     libtwolame
1184     libvo_aacenc
1185     libvo_amrwbenc
1186     libvorbis
1187     libvpx
1188     libwavpack
1189     libwebp
1190     libx264
1191     libx265
1192     libxavs
1193     libxcb
1194     libxcb_shm
1195     libxcb_xfixes
1196     libxvid
1197     mmal
1198     nvenc
1199     openssl
1200     x11grab
1201     zlib
1202 "
1203
1204 FEATURE_LIST="
1205     gray
1206     hardcoded_tables
1207     runtime_cpudetect
1208     safe_bitstream_reader
1209     shared
1210     small
1211     sram
1212     static
1213     swscale_alpha
1214 "
1215
1216 HWACCEL_LIST="
1217     d3d11va
1218     dxva2
1219     vaapi
1220     vda
1221     vdpau
1222 "
1223
1224 LIBRARY_LIST="
1225     avcodec
1226     avdevice
1227     avfilter
1228     avformat
1229     avresample
1230     avutil
1231     swscale
1232 "
1233
1234 LICENSE_LIST="
1235     gpl
1236     nonfree
1237     version3
1238 "
1239
1240 PROGRAM_LIST="
1241     avconv
1242     avplay
1243     avprobe
1244 "
1245
1246 SUBSYSTEM_LIST="
1247     dct
1248     doc
1249     error_resilience
1250     faan
1251     fft
1252     lsp
1253     lzo
1254     mdct
1255     network
1256     rdft
1257 "
1258
1259 CONFIG_LIST="
1260     $COMPONENT_LIST
1261     $EXAMPLE_LIST
1262     $EXTERNAL_LIBRARY_LIST
1263     $FEATURE_LIST
1264     $HWACCEL_LIST
1265     $LICENSE_LIST
1266     $LIBRARY_LIST
1267     $PROGRAM_LIST
1268     $SUBSYSTEM_LIST
1269     memalign_hack
1270     neon_clobber_test
1271     pic
1272     pod2man
1273     texi2html
1274     thumb
1275     valgrind_backtrace
1276     xmm_clobber_test
1277 "
1278
1279 THREADS_LIST="
1280     pthreads
1281     w32threads
1282 "
1283
1284 ATOMICS_LIST="
1285     atomics_gcc
1286     atomics_suncc
1287     atomics_win32
1288 "
1289
1290 ARCH_LIST="
1291     aarch64
1292     alpha
1293     arm
1294     avr32
1295     avr32_ap
1296     avr32_uc
1297     bfin
1298     ia64
1299     m68k
1300     mips
1301     mips64
1302     parisc
1303     ppc
1304     ppc64
1305     s390
1306     sh4
1307     sparc
1308     sparc64
1309     tilegx
1310     tilepro
1311     tomi
1312     x86
1313     x86_32
1314     x86_64
1315 "
1316
1317 ARCH_EXT_LIST_ARM="
1318     armv5te
1319     armv6
1320     armv6t2
1321     armv8
1322     neon
1323     vfp
1324     vfpv3
1325 "
1326
1327 ARCH_EXT_LIST_X86_SIMD="
1328     amd3dnow
1329     amd3dnowext
1330     avx
1331     avx2
1332     fma3
1333     fma4
1334     mmx
1335     mmxext
1336     sse
1337     sse2
1338     sse3
1339     sse4
1340     sse42
1341     ssse3
1342     xop
1343 "
1344
1345 ARCH_EXT_LIST_PPC="
1346     altivec
1347     dcbzl
1348     ldbrx
1349     power8
1350     ppc4xx
1351     vsx
1352 "
1353
1354 ARCH_EXT_LIST_X86="
1355     $ARCH_EXT_LIST_X86_SIMD
1356     cpunop
1357     i686
1358 "
1359
1360 ARCH_EXT_LIST="
1361     $ARCH_EXT_LIST_ARM
1362     $ARCH_EXT_LIST_PPC
1363     $ARCH_EXT_LIST_X86
1364     loongson
1365     vis
1366 "
1367
1368 ARCH_FEATURES="
1369     aligned_stack
1370     fast_64bit
1371     fast_clz
1372     fast_cmov
1373     local_aligned_8
1374     local_aligned_16
1375     simd_align_16
1376 "
1377
1378 BUILTIN_LIST="
1379     atomic_cas_ptr
1380     machine_rw_barrier
1381     MemoryBarrier
1382     mm_empty
1383     rdtsc
1384     sync_val_compare_and_swap
1385 "
1386 HAVE_LIST_CMDLINE="
1387     inline_asm
1388     symver
1389     yasm
1390 "
1391
1392 HAVE_LIST_PUB="
1393     bigendian
1394     fast_unaligned
1395 "
1396
1397 HEADERS_LIST="
1398     alsa_asoundlib_h
1399     altivec_h
1400     arpa_inet_h
1401     cdio_paranoia_h
1402     cdio_paranoia_paranoia_h
1403     dev_bktr_ioctl_bt848_h
1404     dev_bktr_ioctl_meteor_h
1405     dev_ic_bt8xx_h
1406     dev_video_bktr_ioctl_bt848_h
1407     dev_video_meteor_ioctl_meteor_h
1408     direct_h
1409     dlfcn_h
1410     d3d11_h
1411     dxva_h
1412     gsm_h
1413     io_h
1414     mach_mach_time_h
1415     machine_ioctl_bt848_h
1416     machine_ioctl_meteor_h
1417     malloc_h
1418     poll_h
1419     sndio_h
1420     soundcard_h
1421     sys_mman_h
1422     sys_param_h
1423     sys_resource_h
1424     sys_select_h
1425     sys_soundcard_h
1426     sys_time_h
1427     sys_un_h
1428     sys_videoio_h
1429     unistd_h
1430     valgrind_valgrind_h
1431     windows_h
1432     winsock2_h
1433 "
1434
1435 INTRINSICS_LIST="
1436     intrinsics_neon
1437 "
1438
1439 MATH_FUNCS="
1440     atanf
1441     atan2f
1442     cbrtf
1443     cosf
1444     exp2
1445     exp2f
1446     expf
1447     isinf
1448     isnan
1449     ldexpf
1450     llrint
1451     llrintf
1452     log2
1453     log2f
1454     log10f
1455     lrint
1456     lrintf
1457     powf
1458     rint
1459     round
1460     roundf
1461     sinf
1462     trunc
1463     truncf
1464 "
1465
1466 SYSTEM_FUNCS="
1467     aligned_malloc
1468     clock_gettime
1469     closesocket
1470     CommandLineToArgvW
1471     CoTaskMemFree
1472     CryptGenRandom
1473     dlopen
1474     fcntl
1475     flt_lim
1476     fork
1477     getaddrinfo
1478     gethrtime
1479     getopt
1480     GetProcessAffinityMask
1481     GetProcessMemoryInfo
1482     GetProcessTimes
1483     getrusage
1484     getservbyport
1485     GetSystemTimeAsFileTime
1486     gettimeofday
1487     gmtime_r
1488     inet_aton
1489     isatty
1490     jack_port_get_latency_range
1491     LoadLibrary
1492     localtime_r
1493     mach_absolute_time
1494     MapViewOfFile
1495     memalign
1496     mkstemp
1497     mmap
1498     mprotect
1499     nanosleep
1500     posix_memalign
1501     sched_getaffinity
1502     SetConsoleTextAttribute
1503     setmode
1504     setrlimit
1505     Sleep
1506     strerror_r
1507     sysconf
1508     sysctl
1509     usleep
1510     VirtualAlloc
1511 "
1512
1513 TOOLCHAIN_FEATURES="
1514     as_dn_directive
1515     as_func
1516     as_object_arch
1517     asm_mod_q
1518     attribute_may_alias
1519     attribute_packed
1520     ebp_available
1521     ebx_available
1522     gnu_as
1523     ibm_asm
1524     inline_asm_labels
1525     pragma_deprecated
1526     symver_asm_label
1527     symver_gnu_asm
1528     vfp_args
1529     xform_asm
1530     xmm_clobbers
1531 "
1532
1533 TYPES_LIST="
1534     CONDITION_VARIABLE_Ptr
1535     socklen_t
1536     struct_addrinfo
1537     struct_group_source_req
1538     struct_ip_mreq_source
1539     struct_ipv6_mreq
1540     struct_pollfd
1541     struct_rusage_ru_maxrss
1542     struct_sockaddr_in6
1543     struct_sockaddr_sa_len
1544     struct_sockaddr_storage
1545     struct_v4l2_frmivalenum_discrete
1546 "
1547
1548 HAVE_LIST="
1549     $ARCH_EXT_LIST
1550     $(add_suffix _external $ARCH_EXT_LIST)
1551     $(add_suffix _inline   $ARCH_EXT_LIST)
1552     $ARCH_FEATURES
1553     $ATOMICS_LIST
1554     $BUILTIN_LIST
1555     $HAVE_LIST_CMDLINE
1556     $HAVE_LIST_PUB
1557     $HEADERS_LIST
1558     $INTRINSICS_LIST
1559     $MATH_FUNCS
1560     $SYSTEM_FUNCS
1561     $THREADS_LIST
1562     $TOOLCHAIN_FEATURES
1563     $TYPES_LIST
1564     atomics_native
1565     dos_paths
1566     dxva2_lib
1567     libc_msvcrt
1568     libdc1394_1
1569     libdc1394_2
1570     sdl
1571     section_data_rel_ro
1572     threads
1573     vaapi_x11
1574     vdpau_x11
1575     xlib
1576 "
1577
1578 # options emitted with CONFIG_ prefix but not available on the command line
1579 CONFIG_EXTRA="
1580     aandcttables
1581     ac3dsp
1582     audio_frame_queue
1583     audiodsp
1584     blockdsp
1585     bswapdsp
1586     cabac
1587     dvprofile
1588     faandct
1589     faanidct
1590     fdctdsp
1591     flacdsp
1592     fmtconvert
1593     gcrypt
1594     gmp
1595     golomb
1596     gplv3
1597     h263dsp
1598     h264chroma
1599     h264dsp
1600     h264pred
1601     h264qpel
1602     hpeldsp
1603     huffman
1604     huffyuvdsp
1605     huffyuvencdsp
1606     idctdsp
1607     iirfilter
1608     imdct15
1609     intrax8
1610     ividsp
1611     jpegtables
1612     libx262
1613     lgplv3
1614     lpc
1615     me_cmp
1616     mpeg_er
1617     mpegaudio
1618     mpegaudiodsp
1619     mpegvideo
1620     mpegvideoenc
1621     mss34dsp
1622     pixblockdsp
1623     qpeldsp
1624     qsv
1625     qsvdec
1626     qsvenc
1627     rangecoder
1628     riffdec
1629     riffenc
1630     rtpdec
1631     rtpenc_chain
1632     rv34dsp
1633     sinewin
1634     snappy
1635     startcode
1636     texturedsp
1637     texturedspenc
1638     tpeldsp
1639     videodsp
1640     vp3dsp
1641     vp56dsp
1642     wma_freqs
1643 "
1644
1645 CMDLINE_SELECT="
1646     $ARCH_EXT_LIST
1647     $CONFIG_LIST
1648     $HAVE_LIST_CMDLINE
1649     $THREADS_LIST
1650     asm
1651     cross_compile
1652     debug
1653     extra_warnings
1654     logging
1655     lto
1656     optimizations
1657     rpath
1658 "
1659
1660 PATHS_LIST="
1661     bindir
1662     datadir
1663     docdir
1664     incdir
1665     libdir
1666     mandir
1667     prefix
1668     shlibdir
1669 "
1670
1671 CMDLINE_SET="
1672     $PATHS_LIST
1673     ar
1674     arch
1675     as
1676     build_suffix
1677     cc
1678     cpu
1679     cross_prefix
1680     dep_cc
1681     env
1682     extra_version
1683     host_cc
1684     host_cflags
1685     host_ld
1686     host_ldflags
1687     host_libs
1688     host_os
1689     ld
1690     logfile
1691     malloc_prefix
1692     nm
1693     optflags
1694     pkg_config
1695     pkg_config_flags
1696     random_seed
1697     samples
1698     sysinclude
1699     sysroot
1700     target_exec
1701     target_os
1702     target_path
1703     target_samples
1704     toolchain
1705 "
1706
1707 CMDLINE_APPEND="
1708     extra_cflags
1709     host_cppflags
1710 "
1711
1712 # code dependency declarations
1713
1714 # architecture extensions
1715
1716 armv5te_deps="arm"
1717 armv6_deps="arm"
1718 armv6t2_deps="arm"
1719 armv8_deps="aarch64"
1720 neon_deps_any="aarch64 arm"
1721 intrinsics_neon_deps="neon"
1722 vfp_deps_any="aarch64 arm"
1723 vfpv3_deps="vfp"
1724
1725 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1726
1727 altivec_deps="ppc"
1728 ppc4xx_deps="ppc"
1729 vsx_deps="altivec"
1730 power8_deps="vsx"
1731
1732 cpunop_deps="i686"
1733 x86_64_select="i686"
1734 x86_64_suggest="fast_cmov"
1735
1736 amd3dnow_deps="mmx"
1737 amd3dnowext_deps="amd3dnow"
1738 i686_deps="x86"
1739 mmx_deps="x86"
1740 mmxext_deps="mmx"
1741 sse_deps="mmxext"
1742 sse2_deps="sse"
1743 sse3_deps="sse2"
1744 ssse3_deps="sse3"
1745 sse4_deps="ssse3"
1746 sse42_deps="sse4"
1747 avx_deps="sse42"
1748 xop_deps="avx"
1749 fma3_deps="avx"
1750 fma4_deps="avx"
1751 avx2_deps="avx"
1752
1753 mmx_external_deps="yasm"
1754 mmx_inline_deps="inline_asm"
1755 mmx_suggest="mmx_external mmx_inline"
1756
1757 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1758     eval dep=\$${ext}_deps
1759     eval ${ext}_external_deps='"${dep}_external"'
1760     eval ${ext}_inline_deps='"${dep}_inline"'
1761     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1762 done
1763
1764 aligned_stack_if_any="aarch64 ppc x86"
1765 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1766 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1767 fast_unaligned_if_any="aarch64 ppc x86"
1768 simd_align_16_if_any="altivec neon sse"
1769
1770 # system capabilities
1771 symver_if_any="symver_asm_label symver_gnu_asm"
1772 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1773
1774 # threading support
1775 atomics_gcc_if="sync_val_compare_and_swap"
1776 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1777 atomics_win32_if="MemoryBarrier"
1778 atomics_native_if_any="$ATOMICS_LIST"
1779 w32threads_deps="atomics_native"
1780 threads_if_any="$THREADS_LIST"
1781
1782 # subsystems
1783 dct_select="rdft"
1784 error_resilience_select="me_cmp"
1785 faandct_deps="faan fdctdsp"
1786 faanidct_deps="faan idctdsp"
1787 intrax8_select="error_resilience"
1788 mdct_select="fft"
1789 rdft_select="fft"
1790 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1791 mpeg_er_select="error_resilience"
1792 mpegaudio_select="mpegaudiodsp"
1793 mpegaudiodsp_select="dct"
1794 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1795 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1796 nvenc_deps_any="dlopen LoadLibrary"
1797 nvenc_extralibs='$ldl'
1798 qsvdec_select="qsv"
1799 qsvenc_select="qsv"
1800
1801 # decoders / encoders
1802 aac_decoder_select="imdct15 mdct sinewin"
1803 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1804 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1805 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1806 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1807 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1808 aic_decoder_select="golomb idctdsp"
1809 alac_encoder_select="lpc"
1810 als_decoder_select="bswapdsp"
1811 amrnb_decoder_select="lsp"
1812 amrwb_decoder_select="lsp"
1813 amv_decoder_select="sp5x_decoder"
1814 ape_decoder_select="bswapdsp"
1815 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1816 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1817 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1818 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1819 atrac1_decoder_select="mdct sinewin"
1820 atrac3_decoder_select="mdct"
1821 atrac3p_decoder_select="mdct sinewin"
1822 bink_decoder_select="blockdsp hpeldsp"
1823 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1824 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1825 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1826 cllc_decoder_select="bswapdsp"
1827 comfortnoise_encoder_select="lpc"
1828 cook_decoder_select="audiodsp mdct sinewin"
1829 cscd_decoder_select="lzo"
1830 cscd_decoder_suggest="zlib"
1831 dca_decoder_select="fmtconvert mdct"
1832 dds_decoder_select="texturedsp"
1833 dnxhd_decoder_select="blockdsp idctdsp"
1834 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1835 dvvideo_decoder_select="dvprofile idctdsp"
1836 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1837 dxa_decoder_deps="zlib"
1838 eac3_decoder_select="ac3_decoder"
1839 eac3_encoder_select="ac3_encoder"
1840 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1841 eatgq_decoder_select="aandcttables idctdsp"
1842 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1843 exr_decoder_deps="zlib"
1844 ffv1_decoder_select="golomb rangecoder"
1845 ffv1_encoder_select="rangecoder"
1846 ffvhuff_decoder_select="huffyuv_decoder"
1847 ffvhuff_encoder_select="huffyuv_encoder"
1848 fic_decoder_select="golomb"
1849 flac_decoder_select="flacdsp golomb"
1850 flac_encoder_select="bswapdsp flacdsp golomb lpc"
1851 flashsv_decoder_deps="zlib"
1852 flashsv_encoder_deps="zlib"
1853 flashsv2_decoder_deps="zlib"
1854 flv_decoder_select="h263_decoder"
1855 flv_encoder_select="h263_encoder"
1856 fourxm_decoder_select="blockdsp bswapdsp"
1857 fraps_decoder_select="bswapdsp huffman"
1858 g2m_decoder_deps="zlib"
1859 g2m_decoder_select="blockdsp idctdsp jpegtables"
1860 h261_decoder_select="mpeg_er mpegvideo"
1861 h261_encoder_select="aandcttables mpegvideoenc"
1862 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1863 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1864 h263i_decoder_select="h263_decoder"
1865 h263p_encoder_select="h263_encoder"
1866 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1867 h264_decoder_suggest="error_resilience"
1868 h264_nvenc_encoder_deps="nvenc"
1869 h264_qsv_decoder_deps="libmfx"
1870 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1871 h264_qsv_encoder_deps="libmfx"
1872 h264_qsv_encoder_select="qsvenc"
1873 hap_decoder_select="snappy texturedsp"
1874 hap_encoder_deps="libsnappy"
1875 hap_encoder_select="texturedspenc"
1876 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1877 hevc_nvenc_encoder_deps="nvenc"
1878 hevc_qsv_encoder_deps="libmfx"
1879 hevc_qsv_encoder_select="qsvenc"
1880 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1881 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1882 iac_decoder_select="imc_decoder"
1883 imc_decoder_select="bswapdsp fft mdct sinewin"
1884 indeo3_decoder_select="hpeldsp"
1885 indeo4_decoder_select="ividsp"
1886 indeo5_decoder_select="ividsp"
1887 interplay_video_decoder_select="hpeldsp"
1888 jpegls_decoder_select="golomb mjpeg_decoder"
1889 jpegls_encoder_select="golomb"
1890 jv_decoder_select="blockdsp"
1891 lagarith_decoder_select="huffyuvdsp"
1892 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1893 loco_decoder_select="golomb"
1894 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1895 metasound_decoder_select="lsp mdct sinewin"
1896 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1897 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1898 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1899 mjpegb_decoder_select="mjpeg_decoder"
1900 mlp_decoder_select="mlp_parser"
1901 motionpixels_decoder_select="bswapdsp"
1902 mp1_decoder_select="mpegaudio"
1903 mp1float_decoder_select="mpegaudio"
1904 mp2_decoder_select="mpegaudio"
1905 mp2float_decoder_select="mpegaudio"
1906 mp3_decoder_select="mpegaudio"
1907 mp3adu_decoder_select="mpegaudio"
1908 mp3adufloat_decoder_select="mpegaudio"
1909 mp3float_decoder_select="mpegaudio"
1910 mp3on4_decoder_select="mpegaudio"
1911 mp3on4float_decoder_select="mpegaudio"
1912 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1913 mpc8_decoder_select="mpegaudiodsp"
1914 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1915 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1916 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1917 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1918 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1919 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1920 mpeg2_qsv_encoder_deps="libmfx"
1921 mpeg2_qsv_encoder_select="qsvenc"
1922 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1923 mpeg4_encoder_select="h263_encoder"
1924 msa1_decoder_select="mss34dsp"
1925 msmpeg4v1_decoder_select="h263_decoder"
1926 msmpeg4v2_decoder_select="h263_decoder"
1927 msmpeg4v2_encoder_select="h263_encoder"
1928 msmpeg4v3_decoder_select="h263_decoder"
1929 msmpeg4v3_encoder_select="h263_encoder"
1930 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1931 mts2_decoder_select="mss34dsp"
1932 mxpeg_decoder_select="mjpeg_decoder"
1933 nellymoser_decoder_select="mdct sinewin"
1934 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1935 nuv_decoder_select="idctdsp lzo"
1936 on2avc_decoder_select="mdct"
1937 opus_decoder_deps="avresample"
1938 opus_decoder_select="imdct15"
1939 png_decoder_deps="zlib"
1940 png_encoder_deps="zlib"
1941 png_encoder_select="huffyuvencdsp"
1942 prores_decoder_select="idctdsp"
1943 prores_encoder_select="fdctdsp"
1944 qcelp_decoder_select="lsp"
1945 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1946 ra_144_encoder_select="audio_frame_queue lpc"
1947 ralf_decoder_select="golomb"
1948 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1949 rv10_encoder_select="h263_encoder"
1950 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1951 rv20_encoder_select="h263_encoder"
1952 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1953 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
1954 shorten_decoder_select="golomb"
1955 sipr_decoder_select="lsp"
1956 sp5x_decoder_select="mjpeg_decoder"
1957 svq1_decoder_select="hpeldsp"
1958 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1959 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1960 svq3_decoder_suggest="zlib"
1961 tak_decoder_select="audiodsp"
1962 tdsc_decoder_deps="zlib"
1963 tdsc_decoder_select="mjpeg_decoder"
1964 theora_decoder_select="vp3_decoder"
1965 thp_decoder_select="mjpeg_decoder"
1966 tiff_decoder_suggest="zlib"
1967 tiff_encoder_suggest="zlib"
1968 truehd_decoder_select="mlp_decoder"
1969 truemotion2_decoder_select="bswapdsp"
1970 truespeech_decoder_select="bswapdsp"
1971 tscc_decoder_deps="zlib"
1972 txd_decoder_select="texturedsp"
1973 twinvq_decoder_select="mdct lsp sinewin"
1974 utvideo_decoder_select="bswapdsp"
1975 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1976 vble_decoder_select="huffyuvdsp"
1977 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1978 vc1image_decoder_select="vc1_decoder"
1979 vorbis_decoder_select="mdct"
1980 vorbis_encoder_select="mdct"
1981 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1982 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
1983 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
1984 vp6a_decoder_select="vp6_decoder"
1985 vp6f_decoder_select="vp6_decoder"
1986 vp7_decoder_select="h264pred videodsp"
1987 vp8_decoder_select="h264pred videodsp"
1988 vp9_decoder_select="videodsp"
1989 webp_decoder_select="vp8_decoder"
1990 wmapro_decoder_select="mdct sinewin wma_freqs"
1991 wmav1_decoder_select="mdct sinewin wma_freqs"
1992 wmav1_encoder_select="mdct sinewin wma_freqs"
1993 wmav2_decoder_select="mdct sinewin wma_freqs"
1994 wmav2_encoder_select="mdct sinewin wma_freqs"
1995 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1996 wmv1_decoder_select="h263_decoder"
1997 wmv1_encoder_select="h263_encoder"
1998 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1999 wmv2_encoder_select="h263_encoder"
2000 wmv3_decoder_select="vc1_decoder"
2001 wmv3image_decoder_select="wmv3_decoder"
2002 zerocodec_decoder_deps="zlib"
2003 zlib_decoder_deps="zlib"
2004 zlib_encoder_deps="zlib"
2005 zmbv_decoder_deps="zlib"
2006 zmbv_encoder_deps="zlib"
2007
2008 # hardware accelerators
2009 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2010 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2011 vaapi_deps="va_va_h"
2012 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2013 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2014 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2015
2016 h263_vaapi_hwaccel_deps="vaapi"
2017 h263_vaapi_hwaccel_select="h263_decoder"
2018 h263_vdpau_hwaccel_deps="vdpau"
2019 h263_vdpau_hwaccel_select="h263_decoder"
2020 h264_d3d11va_hwaccel_deps="d3d11va"
2021 h264_d3d11va_hwaccel_select="h264_decoder"
2022 h264_dxva2_hwaccel_deps="dxva2"
2023 h264_dxva2_hwaccel_select="h264_decoder"
2024 h264_mmal_decoder_deps="mmal"
2025 h264_mmal_hwaccel_deps="mmal"
2026 h264_mmal_decoder_select="h264_decoder"
2027 h264_mmal_encoder_deps="mmal"
2028 h264_qsv_hwaccel_deps="libmfx"
2029 h264_vaapi_hwaccel_deps="vaapi"
2030 h264_vaapi_hwaccel_select="h264_decoder"
2031 h264_vda_hwaccel_deps="vda"
2032 h264_vda_hwaccel_select="h264_decoder"
2033 h264_vda_old_hwaccel_deps="vda"
2034 h264_vda_old_hwaccel_select="h264_decoder"
2035 h264_vdpau_hwaccel_deps="vdpau"
2036 h264_vdpau_hwaccel_select="h264_decoder"
2037 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2038 hevc_d3d11va_hwaccel_select="hevc_decoder"
2039 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2040 hevc_dxva2_hwaccel_select="hevc_decoder"
2041 mpeg1_vdpau_hwaccel_deps="vdpau"
2042 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2043 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2044 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2045 mpeg2_dxva2_hwaccel_deps="dxva2"
2046 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2047 mpeg2_vaapi_hwaccel_deps="vaapi"
2048 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2049 mpeg2_vdpau_hwaccel_deps="vdpau"
2050 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2051 mpeg4_vaapi_hwaccel_deps="vaapi"
2052 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2053 mpeg4_vdpau_hwaccel_deps="vdpau"
2054 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2055 vc1_d3d11va_hwaccel_deps="d3d11va"
2056 vc1_d3d11va_hwaccel_select="vc1_decoder"
2057 vc1_dxva2_hwaccel_deps="dxva2"
2058 vc1_dxva2_hwaccel_select="vc1_decoder"
2059 vc1_vaapi_hwaccel_deps="vaapi"
2060 vc1_vaapi_hwaccel_select="vc1_decoder"
2061 vc1_vdpau_hwaccel_deps="vdpau"
2062 vc1_vdpau_hwaccel_select="vc1_decoder"
2063 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2064 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2065 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2066 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2067
2068 # parsers
2069 h264_parser_select="h264_decoder"
2070 hevc_parser_select="golomb"
2071 mpegvideo_parser_select="mpegvideo"
2072 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2073 vc1_parser_select="mpegvideo startcode vc1_decoder"
2074
2075 # bitstream_filters
2076 mjpeg2jpeg_bsf_select="jpegtables"
2077
2078 # external libraries
2079 libdcadec_decoder_deps="libdcadec"
2080 libfaac_encoder_deps="libfaac"
2081 libfaac_encoder_select="audio_frame_queue"
2082 libfdk_aac_decoder_deps="libfdk_aac"
2083 libfdk_aac_encoder_deps="libfdk_aac"
2084 libfdk_aac_encoder_select="audio_frame_queue"
2085 libgsm_decoder_deps="libgsm"
2086 libgsm_encoder_deps="libgsm"
2087 libgsm_ms_decoder_deps="libgsm"
2088 libgsm_ms_encoder_deps="libgsm"
2089 libilbc_decoder_deps="libilbc"
2090 libilbc_encoder_deps="libilbc"
2091 libmp3lame_encoder_deps="libmp3lame"
2092 libmp3lame_encoder_select="audio_frame_queue"
2093 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2094 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2095 libopencore_amrnb_encoder_select="audio_frame_queue"
2096 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2097 libopenh264_encoder_deps="libopenh264"
2098 libopenjpeg_decoder_deps="libopenjpeg"
2099 libopenjpeg_encoder_deps="libopenjpeg"
2100 libopus_decoder_deps="libopus"
2101 libopus_encoder_deps="libopus"
2102 libopus_encoder_select="audio_frame_queue"
2103 libschroedinger_decoder_deps="libschroedinger"
2104 libschroedinger_encoder_deps="libschroedinger"
2105 libspeex_decoder_deps="libspeex"
2106 libspeex_encoder_deps="libspeex"
2107 libspeex_encoder_select="audio_frame_queue"
2108 libtheora_encoder_deps="libtheora"
2109 libtwolame_encoder_deps="libtwolame"
2110 libvo_aacenc_encoder_deps="libvo_aacenc"
2111 libvo_aacenc_encoder_select="audio_frame_queue"
2112 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2113 libvorbis_encoder_deps="libvorbis"
2114 libvorbis_encoder_select="audio_frame_queue"
2115 libvpx_vp8_decoder_deps="libvpx"
2116 libvpx_vp8_encoder_deps="libvpx"
2117 libvpx_vp9_decoder_deps="libvpx"
2118 libvpx_vp9_encoder_deps="libvpx"
2119 libwavpack_encoder_deps="libwavpack"
2120 libwebp_encoder_deps="libwebp"
2121 libx262_encoder_deps="libx262"
2122 libx264_encoder_deps="libx264"
2123 libx265_encoder_deps="libx265"
2124 libxavs_encoder_deps="libxavs"
2125 libxvid_encoder_deps="libxvid"
2126
2127 # demuxers / muxers
2128 ac3_demuxer_select="ac3_parser"
2129 asf_demuxer_select="riffdec"
2130 asf_muxer_select="riffenc"
2131 asf_stream_muxer_select="asf_muxer"
2132 avi_demuxer_select="riffdec"
2133 avi_muxer_select="riffenc"
2134 avisynth_demuxer_deps="avisynth"
2135 avisynth_demuxer_select="riffdec"
2136 caf_demuxer_select="riffdec"
2137 dash_muxer_select="mp4_muxer"
2138 dirac_demuxer_select="dirac_parser"
2139 dv_demuxer_select="dvprofile"
2140 dv_muxer_select="dvprofile"
2141 dxa_demuxer_select="riffdec"
2142 eac3_demuxer_select="ac3_parser"
2143 f4v_muxer_select="mov_muxer"
2144 flac_demuxer_select="flac_parser"
2145 hds_muxer_select="flv_muxer"
2146 hls_muxer_select="mpegts_muxer"
2147 ipod_muxer_select="mov_muxer"
2148 ismv_muxer_select="mov_muxer"
2149 matroska_audio_muxer_select="matroska_muxer"
2150 matroska_demuxer_select="riffdec"
2151 matroska_demuxer_suggest="bzlib lzo zlib"
2152 matroska_muxer_select="riffenc"
2153 mmf_muxer_select="riffenc"
2154 mov_demuxer_select="riffdec"
2155 mov_demuxer_suggest="zlib"
2156 mov_muxer_select="riffenc rtpenc_chain"
2157 mp3_demuxer_select="mpegaudio_parser"
2158 mp4_muxer_select="mov_muxer"
2159 mpegts_muxer_select="adts_muxer latm_muxer"
2160 mpegtsraw_demuxer_select="mpegts_demuxer"
2161 mxf_d10_muxer_select="mxf_muxer"
2162 nut_muxer_select="riffenc"
2163 nuv_demuxer_select="riffdec"
2164 oga_muxer_select="ogg_muxer"
2165 ogg_demuxer_select="golomb"
2166 opus_muxer_select="ogg_muxer"
2167 psp_muxer_select="mov_muxer"
2168 rtp_demuxer_select="sdp_demuxer"
2169 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2170 rtsp_demuxer_select="http_protocol rtpdec"
2171 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2172 sap_demuxer_select="sdp_demuxer"
2173 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2174 sdp_demuxer_select="rtpdec"
2175 smoothstreaming_muxer_select="ismv_muxer"
2176 spdif_muxer_select="aac_parser"
2177 spx_muxer_select="ogg_muxer"
2178 tak_demuxer_select="tak_parser"
2179 tg2_muxer_select="mov_muxer"
2180 tgp_muxer_select="mov_muxer"
2181 w64_demuxer_select="wav_demuxer"
2182 wav_demuxer_select="riffdec"
2183 wav_muxer_select="riffenc"
2184 webm_muxer_select="riffenc"
2185 wtv_demuxer_select="riffdec"
2186 xmv_demuxer_select="riffdec"
2187 xwma_demuxer_select="riffdec"
2188
2189 # indevs / outdevs
2190 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2191 alsa_outdev_deps="alsa_asoundlib_h"
2192 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2193 dv1394_indev_deps="dv1394"
2194 dv1394_indev_select="dv_demuxer"
2195 fbdev_indev_deps="linux_fb_h"
2196 jack_indev_deps="jack_jack_h pthreads"
2197 libcdio_indev_deps="libcdio"
2198 libdc1394_indev_deps="libdc1394"
2199 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2200 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2201 pulse_indev_deps="libpulse"
2202 sndio_indev_deps="sndio_h"
2203 sndio_outdev_deps="sndio_h"
2204 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2205 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2206 vfwcap_indev_extralibs="-lavicap32"
2207 x11grab_indev_deps="x11grab"
2208 x11grab_xcb_indev_deps="libxcb"
2209
2210 # protocols
2211 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2212 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2213 ffrtmpcrypt_protocol_select="tcp_protocol"
2214 ffrtmphttp_protocol_deps="!librtmp_protocol"
2215 ffrtmphttp_protocol_select="http_protocol"
2216 gopher_protocol_select="network"
2217 http_protocol_select="tcp_protocol"
2218 httpproxy_protocol_select="tcp_protocol"
2219 https_protocol_select="tls_protocol"
2220 icecast_protocol_select="http_protocol"
2221 librtmp_protocol_deps="librtmp"
2222 librtmpe_protocol_deps="librtmp"
2223 librtmps_protocol_deps="librtmp"
2224 librtmpt_protocol_deps="librtmp"
2225 librtmpte_protocol_deps="librtmp"
2226 mmsh_protocol_select="http_protocol"
2227 mmst_protocol_select="network"
2228 rtmp_protocol_deps="!librtmp_protocol"
2229 rtmp_protocol_select="tcp_protocol"
2230 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2231 rtmps_protocol_deps="!librtmp_protocol"
2232 rtmps_protocol_select="tls_protocol"
2233 rtmpt_protocol_select="ffrtmphttp_protocol"
2234 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2235 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2236 rtp_protocol_select="udp_protocol"
2237 sctp_protocol_deps="struct_sctp_event_subscribe"
2238 sctp_protocol_select="network"
2239 srtp_protocol_select="rtp_protocol"
2240 tcp_protocol_select="network"
2241 tls_gnutls_protocol_deps="gnutls"
2242 tls_gnutls_protocol_select="tcp_protocol"
2243 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2244 tls_openssl_protocol_select="tcp_protocol"
2245 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2246 udp_protocol_select="network"
2247 unix_protocol_deps="sys_un_h"
2248 unix_protocol_select="network"
2249
2250 # filters
2251 blackframe_filter_deps="gpl"
2252 boxblur_filter_deps="gpl"
2253 bs2b_filter_deps="libbs2b"
2254 cropdetect_filter_deps="gpl"
2255 delogo_filter_deps="gpl"
2256 drawtext_filter_deps="libfreetype"
2257 frei0r_filter_deps="frei0r dlopen"
2258 frei0r_filter_extralibs='$ldl'
2259 frei0r_src_filter_deps="frei0r dlopen"
2260 frei0r_src_filter_extralibs='$ldl'
2261 hqdn3d_filter_deps="gpl"
2262 interlace_filter_deps="gpl"
2263 ocv_filter_deps="libopencv"
2264 resample_filter_deps="avresample"
2265 scale_filter_deps="swscale"
2266
2267 # examples
2268 avcodec_example_deps="avcodec avutil"
2269 filter_audio_example_deps="avfilter avutil"
2270 metadata_example_deps="avformat avutil"
2271 output_example_deps="avcodec avformat avutil swscale"
2272 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2273 transcode_aac_example_deps="avcodec avformat avresample"
2274
2275 # libraries, in linking order
2276 avcodec_deps="avutil"
2277 avdevice_deps="avformat avcodec avutil"
2278 avfilter_deps="avutil"
2279 avformat_deps="avcodec avutil"
2280 avresample_deps="avutil"
2281 swscale_deps="avutil"
2282
2283 # programs
2284 avconv_deps="avcodec avfilter avformat avresample swscale"
2285 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2286                fps_filter null_filter resample_filter scale_filter
2287                setpts_filter trim_filter"
2288 avplay_deps="avcodec avformat avresample swscale sdl"
2289 avplay_libs='$sdl_libs'
2290 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2291 avprobe_deps="avcodec avformat"
2292
2293 # documentation
2294 pod2man_deps="doc"
2295 texi2html_deps="doc"
2296
2297 # default parameters
2298
2299 logfile="config.log"
2300
2301 # installation paths
2302 prefix_default="/usr/local"
2303 bindir_default='${prefix}/bin'
2304 datadir_default='${prefix}/share/avconv'
2305 docdir_default='${prefix}/share/doc/libav'
2306 incdir_default='${prefix}/include'
2307 libdir_default='${prefix}/lib'
2308 mandir_default='${prefix}/share/man'
2309 shlibdir_default="$libdir_default"
2310
2311 # toolchain
2312 ar_default="ar"
2313 cc_default="gcc"
2314 host_cc_default="gcc"
2315 cp_f="cp -f"
2316 ln_s="ln -s -f"
2317 nm_default="nm -g"
2318 objformat="elf"
2319 pkg_config_default=pkg-config
2320 ranlib="ranlib"
2321 strip="strip"
2322 yasmexe="yasm"
2323
2324 # machine
2325 arch_default=$(uname -m)
2326 cpu="generic"
2327 intrinsics="none"
2328
2329 # OS
2330 target_os_default=$(tolower $(uname -s))
2331 host_os=$target_os_default
2332
2333 # configurable options
2334 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2335
2336 enable asm
2337 enable debug
2338 enable doc
2339 enable faan faandct faanidct
2340 enable optimizations
2341 enable safe_bitstream_reader
2342 enable static
2343 enable swscale_alpha
2344 enable valgrind_backtrace
2345
2346 # By default, enable only those hwaccels that have no external dependencies.
2347 enable d3d11va dxva2 vda vdpau
2348
2349 # build settings
2350 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2351 LIBPREF="lib"
2352 LIBSUF=".a"
2353 FULLNAME='$(NAME)$(BUILDSUF)'
2354 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2355 SLIBPREF="lib"
2356 SLIBSUF=".so"
2357 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2358 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2359 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2360 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2361 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2362 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2363
2364 asflags_filter=echo
2365 cflags_filter=echo
2366 ldflags_filter=echo
2367
2368 AS_C='-c'
2369 AS_O='-o $@'
2370 CC_C='-c'
2371 CC_E='-E -o $@'
2372 CC_O='-o $@'
2373 LD_O='-o $@'
2374 LD_LIB='-l%'
2375 LD_PATH='-L'
2376 HOSTCC_C='-c'
2377 HOSTCC_E='-E -o $@'
2378 HOSTCC_O='-o $@'
2379 HOSTLD_O='-o $@'
2380
2381 host_libs='-lm'
2382 host_cflags_filter=echo
2383 host_ldflags_filter=echo
2384
2385 target_path='$(CURDIR)'
2386
2387 # since the object filename is not given with the -MM flag, the compiler
2388 # is only able to print the basename, and we must add the path ourselves
2389 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2390 DEPFLAGS='-MM'
2391
2392 # find source path
2393 if test -f configure; then
2394     source_path=.
2395 else
2396     source_path=$(cd $(dirname "$0"); pwd)
2397     echo "$source_path" | grep -q '[[:blank:]]' &&
2398         die "Out of tree builds are impossible with whitespace in source path."
2399     test -e "$source_path/config.h" &&
2400         die "Out of tree builds are impossible with config.h in source dir."
2401 fi
2402
2403 for v in "$@"; do
2404     r=${v#*=}
2405     l=${v%"$r"}
2406     r=$(sh_quote "$r")
2407     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2408 done
2409
2410 find_things(){
2411     thing=$1
2412     pattern=$2
2413     file=$source_path/$3
2414     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2415 }
2416
2417 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2418 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2419 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2420 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2421 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2422 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2423 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2424 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2425 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2426 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2427 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2428
2429 ALL_COMPONENTS="
2430     $BSF_LIST
2431     $DECODER_LIST
2432     $DEMUXER_LIST
2433     $ENCODER_LIST
2434     $FILTER_LIST
2435     $HWACCEL_LIST
2436     $INDEV_LIST
2437     $MUXER_LIST
2438     $OUTDEV_LIST
2439     $PARSER_LIST
2440     $PROTOCOL_LIST
2441 "
2442
2443 for n in $COMPONENT_LIST; do
2444     v=$(toupper ${n%s})_LIST
2445     eval enable \$$v
2446     eval ${n}_if_any="\$$v"
2447 done
2448
2449 enable $ARCH_EXT_LIST
2450
2451 die_unknown(){
2452     echo "Unknown option \"$1\"."
2453     echo "See $0 --help for available options."
2454     exit 1
2455 }
2456
2457 print_3_columns() {
2458     cat | tr ' ' '\n' | sort | pr -r -3 -t
2459 }
2460
2461 show_list() {
2462     suffix=_$1
2463     shift
2464     echo $* | sed s/$suffix//g | print_3_columns
2465     exit 0
2466 }
2467
2468 rand_list(){
2469     IFS=', '
2470     set -- $*
2471     unset IFS
2472     for thing; do
2473         comp=${thing%:*}
2474         prob=${thing#$comp}
2475         prob=${prob#:}
2476         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2477         echo "prob ${prob:-0.5}"
2478         printf '%s\n' $comp
2479     done
2480 }
2481
2482 do_random(){
2483     action=$1
2484     shift
2485     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2486     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2487 }
2488
2489 for opt do
2490     optval="${opt#*=}"
2491     case "$opt" in
2492         --extra-ldflags=*)
2493             add_ldflags $optval
2494         ;;
2495         --extra-ldexeflags=*)
2496             add_ldexeflags $optval
2497         ;;
2498         --extra-libs=*)
2499             add_extralibs $optval
2500         ;;
2501         --disable-devices)
2502             disable $INDEV_LIST $OUTDEV_LIST
2503         ;;
2504         --enable-debug=*)
2505             debuglevel="$optval"
2506         ;;
2507         --disable-programs)
2508             disable $PROGRAM_LIST
2509         ;;
2510         --disable-everything)
2511             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2512         ;;
2513         --disable-all)
2514             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2515             disable $LIBRARY_LIST $PROGRAM_LIST doc
2516         ;;
2517         --enable-random|--disable-random)
2518             action=${opt%%-random}
2519             do_random ${action#--} $COMPONENT_LIST
2520         ;;
2521         --enable-random=*|--disable-random=*)
2522             action=${opt%%-random=*}
2523             do_random ${action#--} $optval
2524         ;;
2525         --enable-*=*|--disable-*=*)
2526             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2527             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2528             eval list=\$$(toupper $thing)_LIST
2529             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2530             $action $(filter "$name" $list)
2531         ;;
2532         --enable-avserver|--disable-avserver*)
2533             warn "avserver has been removed, the ${opt} option is only"\
2534                  "provided for compatibility and will be removed in the future"
2535         ;;
2536         --enable-?*|--disable-?*)
2537             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2538             if is_in $option $COMPONENT_LIST; then
2539                 test $action = disable && action=unset
2540                 eval $action \$$(toupper ${option%s})_LIST
2541             elif is_in $option $CMDLINE_SELECT; then
2542                 $action $option
2543             else
2544                 die_unknown $opt
2545             fi
2546         ;;
2547         --list-*)
2548             NAME="${opt#--list-}"
2549             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2550             NAME=${NAME%s}
2551             eval show_list $NAME \$$(toupper $NAME)_LIST
2552         ;;
2553         --help|-h) show_help
2554         ;;
2555         *)
2556             optname="${opt%%=*}"
2557             optname="${optname#--}"
2558             optname=$(echo "$optname" | sed 's/-/_/g')
2559             if is_in $optname $CMDLINE_SET; then
2560                 eval $optname='$optval'
2561             elif is_in $optname $CMDLINE_APPEND; then
2562                 append $optname "$optval"
2563             else
2564                 die_unknown $opt
2565             fi
2566         ;;
2567     esac
2568 done
2569
2570 for e in $env; do
2571     eval "export $e"
2572 done
2573
2574 disabled logging && logfile=/dev/null
2575
2576 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2577 set >> $logfile
2578
2579 case "$toolchain" in
2580     clang-asan)
2581         cc_default="clang"
2582         add_cflags  -fsanitize=address
2583         add_ldflags -fsanitize=address
2584     ;;
2585     clang-tsan)
2586         cc_default="clang"
2587         add_cflags  -fsanitize=thread -pie
2588         add_ldflags -fsanitize=thread -pie
2589     ;;
2590     clang-usan)
2591         cc_default="clang"
2592         add_cflags  -fsanitize=undefined -O1
2593         add_ldflags -fsanitize=undefined
2594     ;;
2595     gcc-asan)
2596         cc_default="gcc"
2597         add_cflags  -fsanitize=address
2598         add_ldflags -fsanitize=address
2599     ;;
2600     gcc-tsan)
2601         cc_default="gcc"
2602         add_cflags  -fsanitize=thread -pie -fPIC
2603         add_ldflags -fsanitize=thread -pie -fPIC
2604     ;;
2605     gcc-usan)
2606         cc_default="gcc"
2607         add_cflags  -fsanitize=undefined
2608         add_ldflags -fsanitize=undefined
2609     ;;
2610     valgrind-massif)
2611         target_exec_default="valgrind"
2612         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2613     ;;
2614     valgrind-memcheck)
2615         target_exec_default="valgrind"
2616         target_exec_args="--track-origins=yes --leak-check=full"
2617     ;;
2618     msvc)
2619         # Check whether the current MSVC version needs the C99 converter.
2620         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2621         # support enough of C99 to build libav. Default to the new
2622         # behaviour if the regexp was unable to match anything, since this
2623         # successfully parses the version number of existing supported
2624         # versions that require the converter (MSVC 2010 and 2012).
2625         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2626         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2627             cc_default="cl"
2628         else
2629             cc_default="c99wrap cl"
2630         fi
2631         ld_default="link"
2632         nm_default="dumpbin -symbols"
2633         ar_default="lib"
2634         target_os_default="win32"
2635         # Use a relative path for TMPDIR. This makes sure all the
2636         # ffconf temp files are written with a relative path, avoiding
2637         # issues with msys/win32 path conversion for MSVC parameters
2638         # such as -Fo<file> or -out:<file>.
2639         TMPDIR=.
2640     ;;
2641     icl)
2642         cc_default="icl"
2643         ld_default="xilink"
2644         nm_default="dumpbin -symbols"
2645         ar_default="xilib"
2646         target_os_default="win32"
2647         TMPDIR=.
2648     ;;
2649     gcov)
2650         add_cflags  -fprofile-arcs -ftest-coverage
2651         add_ldflags -fprofile-arcs -ftest-coverage
2652     ;;
2653     hardened)
2654         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2655         add_cflags   -fno-strict-overflow -fstack-protector-all
2656         add_ldflags  -Wl,-z,relro -Wl,-z,now
2657     ;;
2658     ?*)
2659         die "Unknown toolchain $toolchain"
2660     ;;
2661 esac
2662
2663 test -n "$cross_prefix" && enable cross_compile
2664
2665 if enabled cross_compile; then
2666     test -n "$arch" && test -n "$target_os" ||
2667         die "Must specify target arch and OS when cross-compiling"
2668 fi
2669
2670 ar_default="${cross_prefix}${ar_default}"
2671 cc_default="${cross_prefix}${cc_default}"
2672 nm_default="${cross_prefix}${nm_default}"
2673 pkg_config_default="${cross_prefix}${pkg_config_default}"
2674 ranlib="${cross_prefix}${ranlib}"
2675 strip="${cross_prefix}${strip}"
2676
2677 sysinclude_default="${sysroot}/usr/include"
2678
2679 set_default arch cc pkg_config sysinclude target_exec target_os
2680 enabled cross_compile || host_cc_default=$cc
2681 set_default host_cc
2682
2683 if ! $pkg_config --version >/dev/null 2>&1; then
2684     warn "$pkg_config not found, library detection may fail."
2685     pkg_config=false
2686 fi
2687
2688 exesuf() {
2689     case $1 in
2690         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2691     esac
2692 }
2693
2694 EXESUF=$(exesuf $target_os)
2695 HOSTEXESUF=$(exesuf $host_os)
2696
2697 # set temporary file name
2698 : ${TMPDIR:=$TEMPDIR}
2699 : ${TMPDIR:=$TMP}
2700 : ${TMPDIR:=/tmp}
2701
2702 if ! check_cmd mktemp -u XXXXXX; then
2703     # simple replacement for missing mktemp
2704     # NOT SAFE FOR GENERAL USE
2705     mktemp(){
2706         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2707     }
2708 fi
2709
2710 tmpfile(){
2711     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2712         (set -C; exec > $tmp) 2>/dev/null ||
2713         die "Unable to create temporary file in $TMPDIR."
2714     append TMPFILES $tmp
2715     eval $1=$tmp
2716 }
2717
2718 trap 'rm -f -- $TMPFILES' EXIT
2719
2720 tmpfile TMPASM .asm
2721 tmpfile TMPC   .c
2722 tmpfile TMPE   $EXESUF
2723 tmpfile TMPH   .h
2724 tmpfile TMPO   .o
2725 tmpfile TMPS   .S
2726 tmpfile TMPSH  .sh
2727 tmpfile TMPV   .ver
2728
2729 unset -f mktemp
2730
2731 chmod +x $TMPE
2732
2733 # make sure we can execute files in $TMPDIR
2734 cat > $TMPSH 2>> $logfile <<EOF
2735 #! /bin/sh
2736 EOF
2737 chmod +x $TMPSH >> $logfile 2>&1
2738 if ! $TMPSH >> $logfile 2>&1; then
2739     cat <<EOF
2740 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2741 variable to another directory and make sure that it is not mounted noexec.
2742 EOF
2743     die "Sanity test failed."
2744 fi
2745
2746 armasm_flags(){
2747     for flag; do
2748         case $flag in
2749             # Filter out MSVC cl.exe options from cflags that shouldn't
2750             # be passed to gas-preprocessor
2751             -M[TD]*)                                            ;;
2752             *)                  echo $flag                      ;;
2753         esac
2754    done
2755 }
2756
2757 ccc_flags(){
2758     for flag; do
2759         case $flag in
2760             -std=c99)           echo -c99                       ;;
2761             -mcpu=*)            echo -arch ${flag#*=}           ;;
2762             -mieee)             echo -ieee                      ;;
2763             -O*|-fast)          echo $flag                      ;;
2764             -fno-math-errno)    echo -assume nomath_errno       ;;
2765             -g)                 echo -g3                        ;;
2766             -Wall)              echo -msg_enable level2         ;;
2767             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2768             -Wl,*)              echo $flag                      ;;
2769             -f*|-W*)                                            ;;
2770             *)                  echo $flag                      ;;
2771         esac
2772    done
2773 }
2774
2775 cparser_flags(){
2776     for flag; do
2777         case $flag in
2778             -Wno-switch)             echo -Wno-switch-enum ;;
2779             -Wno-format-zero-length) ;;
2780             -Wdisabled-optimization) ;;
2781             -Wno-pointer-sign)       echo -Wno-other ;;
2782             *)                       echo $flag ;;
2783         esac
2784     done
2785 }
2786
2787 msvc_common_flags(){
2788     for flag; do
2789         case $flag in
2790             # In addition to specifying certain flags under the compiler
2791             # specific filters, they must be specified here as well or else the
2792             # generic catch all at the bottom will print the original flag.
2793             -Wall)                ;;
2794             -std=c99)             ;;
2795             # Common flags
2796             -fomit-frame-pointer) ;;
2797             -g)                   echo -Z7 ;;
2798             -fno-math-errno)      ;;
2799             -fno-common)          ;;
2800             -fno-signed-zeros)    ;;
2801             -fPIC)                ;;
2802             -mthumb)              ;;
2803             -march=*)             ;;
2804             -lz)                  echo zlib.lib ;;
2805             -lavifil32)           echo vfw32.lib ;;
2806             -lavicap32)           echo vfw32.lib user32.lib ;;
2807             -l*)                  echo ${flag#-l}.lib ;;
2808             -L*)                  echo -libpath:${flag#-L} ;;
2809             *)                    echo $flag ;;
2810         esac
2811     done
2812 }
2813
2814 msvc_flags(){
2815     msvc_common_flags "$@"
2816     for flag; do
2817         case $flag in
2818             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2819                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2820                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2821                                        -wd4273 -wd4554 -wd4701 ;;
2822         esac
2823     done
2824 }
2825
2826 icl_flags(){
2827     msvc_common_flags "$@"
2828     for flag; do
2829         case $flag in
2830             # Despite what Intel's documentation says -Wall, which is supported
2831             # on Windows, does enable remarks so disable them here.
2832             -Wall)                echo $flag -Qdiag-disable:remark ;;
2833             -std=c99)             echo -Qstd=c99 ;;
2834         esac
2835     done
2836 }
2837
2838 pgi_flags(){
2839     for flag; do
2840         case $flag in
2841             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2842             -fomit-frame-pointer) echo -Mnoframe ;;
2843             -g)                   echo -gopt ;;
2844             *)                    echo $flag ;;
2845         esac
2846     done
2847 }
2848
2849 suncc_flags(){
2850     for flag; do
2851         case $flag in
2852             -march=*|-mcpu=*)
2853                 case "${flag#*=}" in
2854                     native)                   echo -xtarget=native       ;;
2855                     v9|niagara)               echo -xarch=sparc          ;;
2856                     ultrasparc)               echo -xarch=sparcvis       ;;
2857                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2858                     i586|pentium)             echo -xchip=pentium        ;;
2859                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2860                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2861                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2862                     pentium4*)          echo -xtarget=pentium4           ;;
2863                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2864                     *-sse3)             echo -xarch=sse3                 ;;
2865                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2866                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2867                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2868                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2869                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2870                     k8|opteron|athlon64|athlon-fx)
2871                                                echo -xarch=sse2a         ;;
2872                     athlon*)                   echo -xarch=pentium_proa  ;;
2873                 esac
2874                 ;;
2875             -std=c99)             echo -xc99              ;;
2876             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2877             -fPIC)                echo -KPIC -xcode=pic32 ;;
2878             -W*,*)                echo $flag              ;;
2879             -f*-*|-W*|-mimpure-text)                      ;;
2880             -shared)              echo -G                 ;;
2881             *)                    echo $flag              ;;
2882         esac
2883     done
2884 }
2885
2886 tms470_flags(){
2887     for flag; do
2888         case $flag in
2889             -march=*|-mcpu=*)
2890                 case "${flag#*=}" in
2891                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2892                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2893                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2894                     armv6*|arm11*)          echo -mv=6   ;;
2895                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2896                                             echo -mv=5e  ;;
2897                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2898                 esac
2899                 ;;
2900             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2901             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2902             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2903             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2904             -msoft-float)   echo --float_support=vfplib       ;;
2905             -O[0-3]|-mf=*)  echo $flag                        ;;
2906             -g)             echo -g -mn                       ;;
2907             -pds=*)         echo $flag                        ;;
2908             -D*|-I*)        echo $flag                        ;;
2909             --gcc|--abi=*)  echo $flag                        ;;
2910             -me)            echo $flag                        ;;
2911         esac
2912     done
2913 }
2914
2915 probe_cc(){
2916     pfx=$1
2917     _cc=$2
2918
2919     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2920     unset _ld_o _ldflags _ld_lib _ld_path
2921     unset _depflags _DEPCMD _DEPFLAGS
2922     _flags_filter=echo
2923
2924     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2925         _type=llvm_gcc
2926         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2927         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2928         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2929         _cflags_speed='-O3'
2930         _cflags_size='-Os'
2931     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2932         _type=gcc
2933         gcc_version=$($_cc --version | head -n1)
2934         gcc_basever=$($_cc -dumpversion)
2935         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2936         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2937         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2938         if ! $_cc -dumpversion | grep -q '^2\.'; then
2939             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2940         fi
2941         _cflags_speed='-O3'
2942         _cflags_size='-Os'
2943     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2944         _type=icc
2945         _ident=$($_cc --version | head -n1)
2946         _depflags='-MMD'
2947         _cflags_speed='-O3'
2948         _cflags_size='-Os'
2949         _cflags_noopt='-O1'
2950     elif $_cc -v 2>&1 | grep -q xlc; then
2951         _type=xlc
2952         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2953         _cflags_speed='-O5'
2954         _cflags_size='-O5 -qcompact'
2955     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2956         _type=ccc
2957         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2958         _DEPFLAGS='-M'
2959         _cflags_speed='-fast'
2960         _cflags_size='-O1'
2961         _flags_filter=ccc_flags
2962     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2963         test -d "$sysroot" || die "No valid sysroot specified."
2964         _type=armcc
2965         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2966         armcc_conf="$PWD/armcc.conf"
2967         $_cc --arm_linux_configure                 \
2968              --arm_linux_config_file="$armcc_conf" \
2969              --configure_sysroot="$sysroot"        \
2970              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2971              die "Error creating armcc configuration file."
2972         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2973         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2974         as_default="${cross_prefix}gcc"
2975         _depflags='-MMD'
2976         _cflags_speed='-O3'
2977         _cflags_size='-Os'
2978     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2979         _type=tms470
2980         _ident=$($_cc -version | head -n1 | tr -s ' ')
2981         _flags='--gcc --abi=eabi -me'
2982         _cc_e='-ppl -fe=$@'
2983         _cc_o='-fe=$@'
2984         _depflags='-ppa -ppd=$(@:.o=.d)'
2985         _cflags_speed='-O3 -mf=5'
2986         _cflags_size='-O3 -mf=2'
2987         _flags_filter=tms470_flags
2988     elif $_cc -v 2>&1 | grep -q clang; then
2989         _type=clang
2990         _ident=$($_cc --version | head -n1)
2991         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2992         _cflags_speed='-O3'
2993         _cflags_size='-Os'
2994     elif $_cc -V 2>&1 | grep -q Sun; then
2995         _type=suncc
2996         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2997         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2998         _DEPFLAGS='-xM1 -xc99'
2999         _ldflags='-std=c99'
3000         _cflags_speed='-O5'
3001         _cflags_size='-O5 -xspace'
3002         _flags_filter=suncc_flags
3003     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3004         _type=pathscale
3005         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3006         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3007         _cflags_speed='-O2'
3008         _cflags_size='-Os'
3009         _flags_filter='filter_out -Wdisabled-optimization'
3010     elif $_cc -v 2>&1 | grep -q Open64; then
3011         _type=open64
3012         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3013         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3014         _cflags_speed='-O2'
3015         _cflags_size='-Os'
3016         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3017     elif $_cc -V 2>&1 | grep -q Portland; then
3018         _type=pgi
3019         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3020         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3021         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3022         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3023         _cflags_noopt="-O1"
3024         _flags_filter=pgi_flags
3025     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3026         _type=armasm
3027         _ident=$($_cc | head -n1)
3028         # 4509: "This form of conditional instruction is deprecated"
3029         _flags="-nologo -ignore 4509"
3030         _flags_filter=armasm_flags
3031     elif $_cc 2>&1 | grep -q Microsoft; then
3032         _type=msvc
3033         _ident=$($_cc 2>&1 | head -n1)
3034         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3035         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3036         _cflags_speed="-O2"
3037         _cflags_size="-O1"
3038         if $_cc 2>&1 | grep -q Linker; then
3039             _ld_o='-out:$@'
3040         else
3041             _ld_o='-Fe$@'
3042         fi
3043         _cc_o='-Fo$@'
3044         _cc_e='-P -Fi$@'
3045         _flags_filter=msvc_flags
3046         _ld_lib='lib%.a'
3047         _ld_path='-libpath:'
3048         _flags='-nologo'
3049         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3050     elif $_cc 2>&1 | grep -q Intel; then
3051         _type=icl
3052         _ident=$($_cc 2>&1 | head -n1)
3053         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3054         # Not only is O3 broken on 13.x+ but it is slower on all previous
3055         # versions (tested) as well.
3056         _cflags_speed="-O2"
3057         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3058         if $_cc 2>&1 | grep -q Linker; then
3059             _ld_o='-out:$@'
3060         else
3061             _ld_o='-Fe$@'
3062         fi
3063         _cc_o='-Fo$@'
3064         _cc_e='-P'
3065         _flags_filter=icl_flags
3066         _ld_lib='lib%.a'
3067         _ld_path='-libpath:'
3068         # -Qdiag-error to make icl error when seeing certain unknown arguments
3069         _flags='-nologo -Qdiag-error:4044,10157'
3070         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3071         # with MSVC which enables it by default.
3072         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3073     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3074         _type=cparser
3075         _ident=$($_cc --version | head -n1)
3076         _depflags='-MMD'
3077         _cflags_speed='-O4'
3078         _cflags_size='-O2'
3079         _flags_filter=cparser_flags
3080     fi
3081
3082     eval ${pfx}_type=\$_type
3083     eval ${pfx}_ident=\$_ident
3084 }
3085
3086 set_ccvars(){
3087     eval ${1}_C=\${_cc_c-\${${1}_C}}
3088     eval ${1}_E=\${_cc_e-\${${1}_E}}
3089     eval ${1}_O=\${_cc_o-\${${1}_O}}
3090
3091     if [ -n "$_depflags" ]; then
3092         eval ${1}_DEPFLAGS=\$_depflags
3093     else
3094         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3095         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3096         eval DEP${1}FLAGS=\$_flags
3097     fi
3098 }
3099
3100 probe_cc cc "$cc"
3101 cflags_filter=$_flags_filter
3102 cflags_speed=$_cflags_speed
3103 cflags_size=$_cflags_size
3104 cflags_noopt=$_cflags_noopt
3105 add_cflags $_flags $_cflags
3106 cc_ldflags=$_ldflags
3107 set_ccvars CC
3108
3109 probe_cc hostcc "$host_cc"
3110 host_cflags_filter=$_flags_filter
3111 add_host_cflags  $_flags $_cflags
3112 set_ccvars HOSTCC
3113
3114 test -n "$cc_type" && enable $cc_type ||
3115     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3116
3117 : ${as_default:=$cc}
3118 : ${dep_cc_default:=$cc}
3119 : ${ld_default:=$cc}
3120 : ${host_ld_default:=$host_cc}
3121 set_default ar as dep_cc ld host_ld
3122
3123 probe_cc as "$as"
3124 asflags_filter=$_flags_filter
3125 add_asflags $_flags $_cflags
3126 set_ccvars AS
3127
3128 probe_cc ld "$ld"
3129 ldflags_filter=$_flags_filter
3130 add_ldflags $_flags $_ldflags
3131 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3132 LD_O=${_ld_o-$LD_O}
3133 LD_LIB=${_ld_lib-$LD_LIB}
3134 LD_PATH=${_ld_path-$LD_PATH}
3135
3136 probe_cc hostld "$host_ld"
3137 host_ldflags_filter=$_flags_filter
3138 add_host_ldflags $_flags $_ldflags
3139 HOSTLD_O=${_ld_o-$HOSTLD_O}
3140
3141 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3142     probe_cc depcc "$dep_cc"
3143     CCDEP=${_DEPCMD:-$DEPCMD}
3144     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3145     DEPCCFLAGS=$_flags
3146 fi
3147
3148 if $ar 2>&1 | grep -q Microsoft; then
3149     arflags="-nologo"
3150     ar_o='-out:$@'
3151 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3152     arflags="rq"
3153     ar_o='$@'
3154 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3155     arflags='-Xany -r -c'
3156     ar_o='$@'
3157 else
3158     arflags="rc"
3159     ar_o='$@'
3160 fi
3161
3162 add_cflags $extra_cflags
3163 add_asflags $extra_cflags
3164
3165 if test -n "$sysroot"; then
3166     case "$cc_type" in
3167         gcc|llvm_gcc|clang)
3168             add_cppflags --sysroot="$sysroot"
3169             add_ldflags --sysroot="$sysroot"
3170         ;;
3171         tms470)
3172             add_cppflags -I"$sysinclude"
3173             add_ldflags  --sysroot="$sysroot"
3174         ;;
3175     esac
3176 fi
3177
3178 if test "$cpu" = host; then
3179     enabled cross_compile &&
3180         die "--cpu=host makes no sense when cross-compiling."
3181
3182     case "$cc_type" in
3183         gcc|llvm_gcc)
3184             check_native(){
3185                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3186                 sed -n "/cc1.*$1=/{
3187                             s/.*$1=\\([^ ]*\\).*/\\1/
3188                             p
3189                             q
3190                         }" $TMPE
3191             }
3192             cpu=$(check_native -march || check_native -mcpu)
3193         ;;
3194     esac
3195
3196     test "${cpu:-host}" = host &&
3197         die "--cpu=host not supported with compiler $cc"
3198 fi
3199
3200 # Deal with common $arch aliases
3201 case "$arch" in
3202     aarch64|arm64)
3203         arch="aarch64"
3204     ;;
3205     arm*)
3206         arch="arm"
3207     ;;
3208     mips*|IP*)
3209         arch="mips"
3210     ;;
3211     parisc*|hppa*)
3212         arch="parisc"
3213     ;;
3214     "Power Macintosh"|ppc*|powerpc*)
3215         arch="ppc"
3216     ;;
3217     s390|s390x)
3218         arch="s390"
3219     ;;
3220     sh4|sh)
3221         arch="sh4"
3222     ;;
3223     sun4u|sparc*)
3224         arch="sparc"
3225     ;;
3226     tilegx|tile-gx)
3227         arch="tilegx"
3228     ;;
3229     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3230         arch="x86"
3231     ;;
3232 esac
3233
3234 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3235 enable $arch
3236
3237 # Add processor-specific flags
3238 if enabled aarch64; then
3239
3240     case $cpu in
3241         armv*)
3242             cpuflags="-march=$cpu"
3243         ;;
3244         *)
3245             cpuflags="-mcpu=$cpu"
3246         ;;
3247     esac
3248
3249 elif enabled alpha; then
3250
3251     cpuflags="-mcpu=$cpu"
3252
3253 elif enabled arm; then
3254
3255     check_arm_arch() {
3256         check_cpp_condition stddef.h \
3257             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3258             $cpuflags
3259     }
3260
3261     probe_arm_arch() {
3262         if   check_arm_arch 4;        then echo armv4;
3263         elif check_arm_arch 4T;       then echo armv4t;
3264         elif check_arm_arch 5;        then echo armv5;
3265         elif check_arm_arch 5E;       then echo armv5e;
3266         elif check_arm_arch 5T;       then echo armv5t;
3267         elif check_arm_arch 5TE;      then echo armv5te;
3268         elif check_arm_arch 5TEJ;     then echo armv5te;
3269         elif check_arm_arch 6;        then echo armv6;
3270         elif check_arm_arch 6J;       then echo armv6j;
3271         elif check_arm_arch 6K;       then echo armv6k;
3272         elif check_arm_arch 6Z;       then echo armv6z;
3273         elif check_arm_arch 6ZK;      then echo armv6zk;
3274         elif check_arm_arch 6T2;      then echo armv6t2;
3275         elif check_arm_arch 7;        then echo armv7;
3276         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3277         elif check_arm_arch 7S;       then echo armv7-a;
3278         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3279         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3280         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3281         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3282         fi
3283     }
3284
3285     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3286
3287     case $cpu in
3288         armv*)
3289             cpuflags="-march=$cpu"
3290             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3291         ;;
3292         *)
3293             cpuflags="-mcpu=$cpu"
3294             case $cpu in
3295                 cortex-a*)                               subarch=armv7a  ;;
3296                 cortex-r*)                               subarch=armv7r  ;;
3297                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3298                 arm11*)                                  subarch=armv6   ;;
3299                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3300                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3301                 *)                             subarch=$(probe_arm_arch) ;;
3302             esac
3303         ;;
3304     esac
3305
3306     case "$subarch" in
3307         armv5t*)    enable fast_clz                ;;
3308         armv[6-8]*) enable fast_clz fast_unaligned ;;
3309     esac
3310
3311 elif enabled avr32; then
3312
3313     case $cpu in
3314         ap7[02]0[0-2])
3315             subarch="avr32_ap"
3316             cpuflags="-mpart=$cpu"
3317         ;;
3318         ap)
3319             subarch="avr32_ap"
3320             cpuflags="-march=$cpu"
3321         ;;
3322         uc3[ab]*)
3323             subarch="avr32_uc"
3324             cpuflags="-mcpu=$cpu"
3325         ;;
3326         uc)
3327             subarch="avr32_uc"
3328             cpuflags="-march=$cpu"
3329         ;;
3330     esac
3331
3332 elif enabled bfin; then
3333
3334     cpuflags="-mcpu=$cpu"
3335
3336 elif enabled mips; then
3337
3338     cpuflags="-march=$cpu"
3339
3340 elif enabled ppc; then
3341
3342     disable ldbrx
3343
3344     case $(tolower $cpu) in
3345         601|ppc601|powerpc601)
3346             cpuflags="-mcpu=601"
3347             disable altivec
3348         ;;
3349         603*|ppc603*|powerpc603*)
3350             cpuflags="-mcpu=603"
3351             disable altivec
3352         ;;
3353         604*|ppc604*|powerpc604*)
3354             cpuflags="-mcpu=604"
3355             disable altivec
3356         ;;
3357         g3|75*|ppc75*|powerpc75*)
3358             cpuflags="-mcpu=750"
3359             disable altivec
3360         ;;
3361         g4|745*|ppc745*|powerpc745*)
3362             cpuflags="-mcpu=7450"
3363             disable vsx
3364         ;;
3365         74*|ppc74*|powerpc74*)
3366             cpuflags="-mcpu=7400"
3367             disable vsx
3368         ;;
3369         g5|970|ppc970|powerpc970)
3370             cpuflags="-mcpu=970"
3371             disable vsx
3372         ;;
3373         power[3-6]*)
3374             cpuflags="-mcpu=$cpu"
3375             disable vsx
3376         ;;
3377         power[7-8]*)
3378             cpuflags="-mcpu=$cpu"
3379             enable ldbrx
3380         ;;
3381         cell)
3382             cpuflags="-mcpu=cell"
3383             enable ldbrx
3384             disable vsx
3385         ;;
3386         e500mc)
3387             cpuflags="-mcpu=e500mc"
3388             disable altivec
3389         ;;
3390         e500v2)
3391             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3392             disable altivec
3393             disable dcbzl
3394         ;;
3395         e500)
3396             cpuflags="-mcpu=8540 -mhard-float"
3397             disable altivec
3398             disable dcbzl
3399         ;;
3400     esac
3401
3402 elif enabled sparc; then
3403
3404     case $cpu in
3405         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3406             cpuflags="-mcpu=$cpu"
3407         ;;
3408         ultrasparc*|niagara[234])
3409             cpuflags="-mcpu=$cpu"
3410         ;;
3411     esac
3412
3413 elif enabled x86; then
3414
3415     case $cpu in
3416         i[345]86|pentium)
3417             cpuflags="-march=$cpu"
3418             disable i686
3419             disable mmx
3420         ;;
3421         # targets that do NOT support nopl and conditional mov (cmov)
3422         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3423             cpuflags="-march=$cpu"
3424             disable i686
3425         ;;
3426         # targets that do support nopl and conditional mov (cmov)
3427         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3428             cpuflags="-march=$cpu"
3429             enable i686
3430             enable fast_cmov
3431         ;;
3432         # targets that do support conditional mov but on which it's slow
3433         pentium4|pentium4m|prescott|nocona)
3434             cpuflags="-march=$cpu"
3435             enable i686
3436             disable fast_cmov
3437         ;;
3438     esac
3439
3440 fi
3441
3442 if [ "$cpu" != generic ]; then
3443     add_cflags  $cpuflags
3444     add_asflags $cpuflags
3445 fi
3446
3447 # compiler sanity check
3448 check_exec <<EOF
3449 int main(void){ return 0; }
3450 EOF
3451 if test "$?" != 0; then
3452     echo "$cc is unable to create an executable file."
3453     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3454         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3455         echo "Only do this if you know what cross compiling means."
3456     fi
3457     die "C compiler test failed."
3458 fi
3459
3460 add_cppflags -D_ISOC99_SOURCE
3461 check_cflags -std=c99
3462 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3463 #include <stdlib.h>
3464 EOF
3465 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3466 #include <stdlib.h>
3467 EOF
3468
3469 add_host_cppflags -D_ISOC99_SOURCE
3470 check_host_cflags -std=c99
3471 check_host_cflags -Wall
3472 check_host_cflags -O3
3473
3474 check_64bit(){
3475     arch32=$1
3476     arch64=$2
3477     expr=$3
3478     check_code cc "" "int test[2*($expr) - 1]" &&
3479         subarch=$arch64 || subarch=$arch32
3480 }
3481
3482 case "$arch" in
3483     aarch64|alpha|ia64)
3484         spic=$shared
3485     ;;
3486     mips)
3487         check_64bit mips mips64 '_MIPS_SIM > 1'
3488         spic=$shared
3489     ;;
3490     parisc)
3491         check_64bit parisc parisc64 'sizeof(void *) > 4'
3492         spic=$shared
3493     ;;
3494     ppc)
3495         check_64bit ppc ppc64 'sizeof(void *) > 4'
3496         spic=$shared
3497     ;;
3498     s390)
3499         check_64bit s390 s390x 'sizeof(void *) > 4'
3500         spic=$shared
3501     ;;
3502     sparc)
3503         check_64bit sparc sparc64 'sizeof(void *) > 4'
3504         spic=$shared
3505     ;;
3506     x86)
3507         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3508         if test "$subarch" = "x86_64"; then
3509             spic=$shared
3510         fi
3511     ;;
3512 esac
3513
3514 enable $subarch
3515 enabled spic && enable_weak pic
3516
3517 # OS specific
3518 case $target_os in
3519     aix)
3520         SHFLAGS=-shared
3521         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3522         enabled shared && add_ldflags -Wl,-brtl
3523         ;;
3524     android)
3525         disable symver
3526         enable section_data_rel_ro
3527         SLIB_INSTALL_NAME='$(SLIBNAME)'
3528         SLIB_INSTALL_LINKS=
3529         # soname not set on purpose
3530         SHFLAGS=-shared
3531         ;;
3532     haiku)
3533         prefix_default="/boot/common"
3534         network_extralibs="-lnetwork"
3535         host_libs=
3536         ;;
3537     sunos)
3538         SHFLAGS='-shared -Wl,-h,$$(@F)'
3539         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3540         network_extralibs="-lsocket -lnsl"
3541         # When using suncc to build, the Solaris linker will mark
3542         # an executable with each instruction set encountered by
3543         # the Solaris assembler.  As our libraries contain their own
3544         # guards for processor-specific code, instead suppress
3545         # generation of the HWCAPS ELF section on Solaris x86 only.
3546         enabled_all suncc x86 &&
3547             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3548             add_ldflags -Wl,-M,mapfile
3549         nm_default='nm -P -g'
3550         ;;
3551     netbsd)
3552         disable symver
3553         oss_indev_extralibs="-lossaudio"
3554         oss_outdev_extralibs="-lossaudio"
3555         ;;
3556     openbsd|bitrig)
3557         disable symver
3558         SHFLAGS='-shared'
3559         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3560         SLIB_INSTALL_LINKS=
3561         oss_indev_extralibs="-lossaudio"
3562         oss_outdev_extralibs="-lossaudio"
3563         ;;
3564     dragonfly)
3565         disable symver
3566         ;;
3567     freebsd)
3568         ;;
3569     bsd/os)
3570         add_extralibs -lpoll -lgnugetopt
3571         ;;
3572     darwin)
3573         enabled ppc && add_asflags -force_cpusubtype_ALL
3574         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3575         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3576         add_ldflags -Wl,-dynamic,-search_paths_first
3577         SLIBSUF=".dylib"
3578         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3579         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3580         objformat="macho"
3581         enabled x86_64 && objformat="macho64"
3582         enabled_any pic shared ||
3583             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3584         ;;
3585     mingw32*)
3586         if test $target_os = "mingw32ce"; then
3587             disable network
3588         else
3589             target_os=mingw32
3590         fi
3591         LIBTARGET=i386
3592         if enabled x86_64; then
3593             LIBTARGET="i386:x86-64"
3594         elif enabled arm; then
3595             LIBTARGET=arm-wince
3596         fi
3597         check_ldflags -Wl,--nxcompat
3598         check_ldflags -Wl,--dynamicbase
3599         shlibdir_default="$bindir_default"
3600         SLIBPREF=""
3601         SLIBSUF=".dll"
3602         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3603         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3604         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3605         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3606         SLIB_INSTALL_LINKS=
3607         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3608         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3609         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3610         objformat="win32"
3611         dlltool="${cross_prefix}dlltool"
3612         ranlib=:
3613         enable dos_paths
3614         ;;
3615     win32|win64)
3616         disable symver
3617         if enabled shared; then
3618             # Link to the import library instead of the normal static library
3619             # for shared libs.
3620             LD_LIB='%.lib'
3621             # Cannot build both shared and static libs with MSVC or icl.
3622             disable static
3623         fi
3624         shlibdir_default="$bindir_default"
3625         SLIBPREF=""
3626         SLIBSUF=".dll"
3627         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3628         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3629         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3630         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3631         SLIB_INSTALL_LINKS=
3632         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3633         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3634         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3635         objformat="win32"
3636         ranlib=:
3637         enable dos_paths
3638         ;;
3639     cygwin*)
3640         target_os=cygwin
3641         shlibdir_default="$bindir_default"
3642         SLIBPREF="cyg"
3643         SLIBSUF=".dll"
3644         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3645         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3646         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3647         SLIB_INSTALL_LINKS=
3648         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3649         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3650         objformat="win32"
3651         enable dos_paths
3652         ;;
3653     *-dos|freedos|opendos)
3654         network_extralibs="-lsocket"
3655         objformat="coff"
3656         enable dos_paths
3657         add_cppflags -U__STRICT_ANSI__
3658         ;;
3659     linux)
3660         enable dv1394
3661         enable section_data_rel_ro
3662         ;;
3663     irix*)
3664         target_os=irix
3665         ranlib="echo ignoring ranlib"
3666         ;;
3667     os/2*)
3668         ln_s="cp -f"
3669         objformat="aout"
3670         add_cppflags -D_GNU_SOURCE
3671         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3672         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3673         LIBSUF="_s.a"
3674         SLIBPREF=""
3675         SLIBSUF=".dll"
3676         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3677         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3678         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3679             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3680             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3681             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3682             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
3683         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3684             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3685         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3686         enable dos_paths
3687         ;;
3688     gnu/kfreebsd)
3689         add_cppflags -D_BSD_SOURCE
3690         ;;
3691     gnu)
3692         ;;
3693     qnx)
3694         add_cppflags -D_QNX_SOURCE
3695         network_extralibs="-lsocket"
3696         ;;
3697     symbian)
3698         SLIBSUF=".dll"
3699         enable dos_paths
3700         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3701         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3702         add_ldflags -Wl,--target1-abs,--no-undefined \
3703                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3704                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3705         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3706                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3707                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3708         ;;
3709     osf1)
3710         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3711         ;;
3712     minix)
3713         ;;
3714     plan9)
3715         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3716                      -D_REENTRANT_SOURCE        \
3717                      -D_RESEARCH_SOURCE         \
3718                      -DFD_SETSIZE=96            \
3719                      -DHAVE_SOCK_OPTS
3720         add_compat strtod.o strtod=avpriv_strtod
3721         network_extralibs='-lbsd'
3722         exeobjs=compat/plan9/main.o
3723         cp_f='cp'
3724         ;;
3725     none)
3726         ;;
3727     *)
3728         die "Unknown OS '$target_os'."
3729         ;;
3730 esac
3731
3732 # determine libc flavour
3733
3734 probe_libc(){
3735     pfx=$1
3736     pfx_no_=${pfx%_}
3737     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3738     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3739         eval ${pfx}libc_type=uclibc
3740         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3741     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3742         eval ${pfx}libc_type=glibc
3743         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3744     # MinGW headers can be installed on Cygwin, so check for newlib first.
3745     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3746         eval ${pfx}libc_type=newlib
3747         add_${pfx}cppflags -U__STRICT_ANSI__
3748     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3749     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3750         eval ${pfx}libc_type=mingw64
3751         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3752         eval test \$${pfx_no_}cc_type = "gcc" &&
3753             add_${pfx}cppflags -D__printf__=__gnu_printf__
3754     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3755          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3756         eval ${pfx}libc_type=mingw32
3757         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3758             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3759             die "ERROR: MinGW32 runtime version must be >= 3.15."
3760         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3761         eval test \$${pfx_no_}cc_type = "gcc" &&
3762             add_${pfx}cppflags -D__printf__=__gnu_printf__
3763     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3764         eval ${pfx}libc_type=msvcrt
3765         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3766             if [ "$pfx" = host_ ]; then
3767                 add_host_cppflags -Dsnprintf=_snprintf
3768             else
3769                 add_compat strtod.o strtod=avpriv_strtod
3770                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3771                                              _snprintf=avpriv_snprintf  \
3772                                              vsnprintf=avpriv_vsnprintf
3773             fi
3774         fi
3775         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3776         # 0x601 by default unless something else is set by the user.
3777         # This can easily lead to us detecting functions only present
3778         # in such new versions and producing binaries requiring windows 7.0.
3779         # Therefore explicitly set the default to XP unless the user has
3780         # set something else on the command line.
3781         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3782             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3783     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3784         eval ${pfx}libc_type=klibc
3785     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3786         eval ${pfx}libc_type=bionic
3787     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3788         eval ${pfx}libc_type=solaris
3789         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3790     else
3791         eval ${pfx}libc_type=default
3792         add_${pfx}cppflags -D_DEFAULT_SOURCE
3793     fi
3794 }
3795
3796 probe_libc
3797 test -n "$libc_type" && enable libc_$libc_type
3798 probe_libc host_
3799 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3800
3801 case $libc_type in
3802     bionic)
3803         add_compat strtod.o strtod=avpriv_strtod
3804         ;;
3805 esac
3806
3807 # hacks for compiler/libc/os combinations
3808
3809 if enabled_all tms470 libc_glibc; then
3810     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3811     add_cppflags -D__USER_LABEL_PREFIX__=
3812     add_cppflags -D__builtin_memset=memset
3813     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3814     add_cflags   -pds=48    # incompatible redefinition of macro
3815 fi
3816
3817 if enabled_all ccc libc_glibc; then
3818     add_ldflags -Wl,-z,now  # calls to libots crash without this
3819 fi
3820
3821 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3822     add_cppflags '-I\$(SRC_PATH)/compat/float'
3823
3824 esc(){
3825     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3826 }
3827
3828 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3829
3830 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3831
3832 set_default $PATHS_LIST
3833 set_default nm
3834
3835 # we need to build at least one lib type
3836 if ! enabled_any static shared; then
3837     cat <<EOF
3838 At least one library type must be built.
3839 Specify --enable-static to build the static libraries or --enable-shared to
3840 build the shared libraries as well. To only build the shared libraries specify
3841 --disable-static in addition to --enable-shared.
3842 EOF
3843     exit 1;
3844 fi
3845
3846 die_license_disabled() {
3847     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3848 }
3849
3850 die_license_disabled gpl libcdio
3851 die_license_disabled gpl libx264
3852 die_license_disabled gpl libx265
3853 die_license_disabled gpl libxavs
3854 die_license_disabled gpl libxvid
3855 die_license_disabled gpl x11grab
3856
3857 die_license_disabled nonfree libfaac
3858 die_license_disabled nonfree libfdk_aac
3859 die_license_disabled nonfree nvenc
3860 die_license_disabled nonfree openssl
3861
3862 die_license_disabled version3 libopencore_amrnb
3863 die_license_disabled version3 libopencore_amrwb
3864 die_license_disabled version3 libvo_aacenc
3865 die_license_disabled version3 libvo_amrwbenc
3866
3867 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3868
3869 disabled optimizations || check_cflags -fomit-frame-pointer
3870
3871 enable_weak_pic() {
3872     disabled pic && return
3873     enable pic
3874     add_cppflags -DPIC
3875     case "$target_os" in
3876     mingw*|cygwin*)
3877         ;;
3878     *)
3879         add_cflags -fPIC
3880         ;;
3881     esac
3882     add_asflags  -fPIC
3883 }
3884
3885 enabled pic && enable_weak_pic
3886
3887 check_cc <<EOF || die "Symbol mangling check failed."
3888 int ff_extern;
3889 EOF
3890 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3891 extern_prefix=${sym%%ff_extern*}
3892
3893 check_cc <<EOF && enable_weak inline_asm
3894 void foo(void) { __asm__ volatile ("" ::); }
3895 EOF
3896
3897 _restrict=
3898 for restrict_keyword in restrict __restrict__ __restrict; do
3899     check_cc <<EOF && _restrict=$restrict_keyword && break
3900 void foo(char * $restrict_keyword p);
3901 EOF
3902 done
3903
3904 check_cc <<EOF && enable pragma_deprecated
3905 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3906 EOF
3907
3908 check_cc <<EOF && enable attribute_packed
3909 struct { int x; } __attribute__((packed)) x;
3910 EOF
3911
3912 check_cc <<EOF && enable attribute_may_alias
3913 union { int x; } __attribute__((may_alias)) x;
3914 EOF
3915
3916 check_cc <<EOF || die "endian test failed"
3917 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3918 EOF
3919 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3920
3921 check_gas() {
3922     log "check_gas using '$as' as AS"
3923     # :vararg is used on aarch64, arm and ppc altivec
3924     check_as <<EOF || return 1
3925 .macro m n, y:vararg=0
3926 \n: .int \y
3927 .endm
3928 m x
3929 EOF
3930     # .altmacro is only used in arm asm
3931     ! enabled arm || check_as <<EOF || return 1
3932 .altmacro
3933 EOF
3934     enable gnu_as
3935     return 0
3936 }
3937
3938 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3939     nogas=:
3940     enabled_any arm aarch64 && nogas=die
3941     enabled_all ppc altivec && nogas=warn
3942     as_noop=-v
3943
3944     case $as_type in
3945         arm*) gaspp_as_type=armasm; as_noop=-h ;;
3946         gcc)  gaspp_as_type=gas ;;
3947         *)    gaspp_as_type=$as_type ;;
3948     esac
3949
3950     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3951
3952     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3953         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3954
3955     if ! check_gas ; then
3956         as=${gas:=$as}
3957         check_gas || \
3958             $nogas "GNU assembler not found, install/update gas-preprocessor"
3959     fi
3960
3961     check_as <<EOF && enable as_func
3962 .func test
3963 .endfunc
3964 EOF
3965 fi
3966
3967 check_inline_asm inline_asm_labels '"1:\n"'
3968
3969 if enabled aarch64; then
3970     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
3971     # internal assembler in clang 3.3 does not support this instruction
3972     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
3973     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
3974
3975     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3976
3977 elif enabled alpha; then
3978
3979     check_cflags -mieee
3980
3981 elif enabled arm; then
3982
3983     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3984     enabled thumb && check_cflags -mthumb || check_cflags -marm
3985
3986     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3987         enable vfp_args
3988     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3989         case "${cross_prefix:-$cc}" in
3990             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3991             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3992 __asm__ (".eabi_attribute 28, 1");
3993 int main(void) { return 0; }
3994 EOF
3995         esac
3996         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3997     fi
3998
3999     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4000     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4001     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4002     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4003     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4004     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4005
4006     [ $target_os = linux ] || [ $target_os = android ] ||
4007         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4008             $ARCH_EXT_LIST_ARM
4009
4010     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4011
4012     check_as <<EOF && enable as_dn_directive
4013 ra .dn d0.i16
4014 .unreq ra
4015 EOF
4016
4017     # llvm's integrated assembler supports .object_arch from llvm 3.5
4018     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4019 .object_arch armv4
4020 EOF
4021
4022     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4023
4024 elif enabled mips; then
4025
4026     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4027
4028 elif enabled parisc; then
4029
4030     if enabled gcc; then
4031         case $($cc -dumpversion) in
4032             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4033         esac
4034     fi
4035
4036 elif enabled ppc; then
4037
4038     enable local_aligned_8 local_aligned_16
4039
4040     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4041     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4042     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4043     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4044
4045     # AltiVec flags: The FSF version of GCC differs from the Apple version
4046     if enabled altivec; then
4047         check_cflags -maltivec -mabi=altivec &&
4048         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4049         check_cflags -faltivec
4050
4051         # check if our compiler supports Motorola AltiVec C API
4052         check_cc <<EOF || disable altivec
4053 $inc_altivec_h
4054 int main(void) {
4055     vector signed int v1 = (vector signed int) { 0 };
4056     vector signed int v2 = (vector signed int) { 1 };
4057     v1 = vec_add(v1, v2);
4058     return 0;
4059 }
4060 EOF
4061
4062         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4063     fi
4064
4065     if enabled vsx; then
4066         check_cflags -mvsx &&
4067         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4068     fi
4069
4070     if enabled power8; then
4071         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4072     fi
4073
4074 elif enabled x86; then
4075
4076     check_builtin rdtsc    intrin.h   "__rdtsc()"
4077     check_builtin mm_empty mmintrin.h "_mm_empty()"
4078
4079     enable local_aligned_8 local_aligned_16
4080
4081     # check whether EBP is available on x86
4082     # As 'i' is stored on the stack, this program will crash
4083     # if the base pointer is used to access it because the
4084     # base pointer is cleared in the inline assembly code.
4085     check_exec_crash <<EOF && enable ebp_available
4086 volatile int i=0;
4087 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4088 return i;
4089 EOF
4090
4091     # check whether EBX is available on x86
4092     check_inline_asm ebx_available '""::"b"(0)' &&
4093         check_inline_asm ebx_available '"":::"%ebx"'
4094
4095     # check whether xmm clobbers are supported
4096     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4097
4098     # check whether binutils is new enough to compile SSSE3/MMXEXT
4099     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4100     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4101
4102     if ! disabled_any asm mmx yasm; then
4103         if check_cmd $yasmexe --version; then
4104             enabled x86_64 && yasm_extra="-m amd64"
4105             yasm_debug="-g dwarf2"
4106         elif check_cmd nasm -v; then
4107             yasmexe=nasm
4108             yasm_debug="-g -F dwarf"
4109             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4110         fi
4111
4112         YASMFLAGS="-f $objformat $yasm_extra"
4113         enabled pic               && append YASMFLAGS "-DPIC"
4114         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4115         case "$objformat" in
4116             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4117         esac
4118
4119         check_yasm "movbe ecx, [5]" && enable yasm ||
4120             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4121         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4122         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4123         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4124         check_yasm "CPU amdnop" || disable cpunop
4125     fi
4126
4127     case "$cpu" in
4128         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4129             disable fast_clz
4130         ;;
4131     esac
4132
4133 fi
4134
4135 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4136
4137 check_ldflags -Wl,--as-needed
4138
4139 if check_func dlopen; then
4140     ldl=
4141 elif check_func dlopen -ldl; then
4142     ldl=-ldl
4143 fi
4144
4145 if ! disabled network; then
4146     check_func getaddrinfo $network_extralibs
4147     check_func getservbyport $network_extralibs
4148     check_func inet_aton $network_extralibs
4149
4150     check_type netdb.h "struct addrinfo"
4151     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4152     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4153     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4154     check_type poll.h "struct pollfd"
4155     check_type netinet/sctp.h "struct sctp_event_subscribe"
4156     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4157     check_type netinet/in.h "struct sockaddr_in6"
4158     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4159     check_type "sys/types.h sys/socket.h" socklen_t
4160
4161     # Prefer arpa/inet.h over winsock2
4162     if check_header arpa/inet.h ; then
4163         check_func closesocket
4164     elif check_header winsock2.h ; then
4165         check_func_headers winsock2.h closesocket -lws2 &&
4166             network_extralibs="-lws2" ||
4167         { check_func_headers winsock2.h closesocket -lws2_32 &&
4168             network_extralibs="-lws2_32"; } || disable winsock2_h network
4169         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4170
4171         check_type ws2tcpip.h socklen_t
4172         check_type ws2tcpip.h "struct addrinfo"
4173         check_type ws2tcpip.h "struct group_source_req"
4174         check_type ws2tcpip.h "struct ip_mreq_source"
4175         check_type ws2tcpip.h "struct ipv6_mreq"
4176         check_type winsock2.h "struct pollfd"
4177         check_struct winsock2.h "struct sockaddr" sa_len
4178         check_type ws2tcpip.h "struct sockaddr_in6"
4179         check_type ws2tcpip.h "struct sockaddr_storage"
4180     else
4181         disable network
4182     fi
4183 fi
4184
4185 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4186 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4187 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4188 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4189
4190 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4191 check_func  ${malloc_prefix}memalign            && enable memalign
4192 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4193
4194 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4195     check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4196
4197 check_func  fcntl
4198 check_func  fork
4199 check_func  gethrtime
4200 check_func  getopt
4201 check_func  getrusage
4202 check_func  gettimeofday
4203 check_func  gmtime_r
4204 check_func  isatty
4205 check_func  localtime_r
4206 check_func  mach_absolute_time
4207 check_func  mkstemp
4208 check_func  mmap
4209 check_func  mprotect
4210 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4211 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4212 check_func  sched_getaffinity
4213 check_func  setrlimit
4214 check_func  strerror_r
4215 check_func  sysconf
4216 check_func  sysctl
4217 check_func  usleep
4218
4219 check_func_headers io.h setmode
4220 check_func_headers stdlib.h getenv
4221
4222 check_func_headers windows.h CoTaskMemFree -lole32
4223 check_func_headers windows.h GetProcessAffinityMask
4224 check_func_headers windows.h GetProcessTimes
4225 check_func_headers windows.h GetSystemTimeAsFileTime
4226 check_func_headers windows.h LoadLibrary
4227 check_func_headers windows.h MapViewOfFile
4228 check_func_headers windows.h SetConsoleTextAttribute
4229 check_func_headers windows.h Sleep
4230 check_func_headers windows.h VirtualAlloc
4231 check_struct windows.h "CONDITION_VARIABLE" Ptr
4232
4233 check_header direct.h
4234 check_header dlfcn.h
4235 check_header d3d11.h
4236 check_header dxva.h
4237 check_header dxva2api.h
4238 check_header io.h
4239 check_header mach/mach_time.h
4240 check_header malloc.h
4241 check_header poll.h
4242 check_header sys/mman.h
4243 check_header sys/param.h
4244 check_header sys/resource.h
4245 check_header sys/select.h
4246 check_header sys/time.h
4247 check_header sys/un.h
4248 check_header unistd.h
4249 check_header valgrind/valgrind.h
4250 check_header vdpau/vdpau.h
4251 check_header vdpau/vdpau_x11.h
4252 check_header VideoDecodeAcceleration/VDADecoder.h
4253 check_header windows.h
4254 check_header X11/extensions/XvMClib.h
4255
4256 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4257 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4258 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4259
4260 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4261
4262 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
4263 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4264 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0600
4265
4266 if ! disabled w32threads && ! enabled pthreads; then
4267     check_func_headers "windows.h process.h" _beginthreadex &&
4268         enable w32threads || disable w32threads
4269 fi
4270
4271 # check for some common methods of building with pthread support
4272 # do this before the optional library checks as some of them require pthreads
4273 if ! disabled pthreads && ! enabled w32threads; then
4274     enable pthreads
4275     if check_func pthread_join -pthread; then
4276         add_cflags -pthread
4277         add_extralibs -pthread
4278     elif check_func pthread_join -pthreads; then
4279         add_cflags -pthreads
4280         add_extralibs -pthreads
4281     elif check_func pthread_join -lpthreadGC2; then
4282         add_extralibs -lpthreadGC2
4283     elif check_lib pthread.h pthread_join -lpthread; then
4284         :
4285     elif ! check_func pthread_join; then
4286         disable pthreads
4287     fi
4288 fi
4289
4290 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4291 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4292
4293 check_lib math.h sin -lm && LIBM="-lm"
4294 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4295
4296 atan2f_args=2
4297 ldexpf_args=2
4298 powf_args=2
4299
4300 for func in $MATH_FUNCS; do
4301     eval check_mathfunc $func \${${func}_args:-1}
4302 done
4303
4304 # these are off by default, so fail if requested and not available
4305 enabled avisynth          && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4306                                check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl   ||
4307                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4308 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4309 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4310 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4311 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4312 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4313 enabled libfdk_aac        && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4314 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4315 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4316 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4317                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4318                                done || die "ERROR: libgsm not found"; }
4319 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4320 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4321 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4322 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4323 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4324 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4325 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4326 enabled libopenjpeg       && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4327                                { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4328 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4329 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4330 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4331 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4332 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
4333 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4334 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4335 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4336 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4337 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4338 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4339 enabled libvpx            && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4340     enabled libvpx_vp8_decoder && {
4341         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4342             disable libvpx_vp8_decoder;
4343     }
4344     enabled libvpx_vp8_encoder && {
4345         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4346             disable libvpx_vp8_encoder;
4347     }
4348     enabled libvpx_vp9_decoder && {
4349         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4350             disable libvpx_vp9_decoder;
4351     }
4352     enabled libvpx_vp9_encoder && {
4353         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4354             disable libvpx_vp9_encoder;
4355     }
4356     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4357         die "libvpx enabled but no supported decoders found"
4358     fi
4359 }
4360 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4361 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4362 enabled libx264           && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4363                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4364                                die "ERROR: libx264 version must be >= 0.118."; } &&
4365                              { check_cpp_condition x264.h "X264_MPEG2" &&
4366                                enable libx262; }
4367 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
4368                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4369                                die "ERROR: libx265 version must be >= 57."; }
4370 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4371 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4372 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4373                                 { ! enabled cross_compile && {
4374                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4375                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4376                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
4377                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4378                                die "ERROR: mmal not found"; }
4379 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4380                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4381                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4382                                die "ERROR: openssl not found"; }
4383
4384 if enabled gnutls; then
4385     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4386     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4387 fi
4388
4389 # libdc1394 check
4390 if enabled libdc1394; then
4391     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4392         enable libdc1394_2; } ||
4393     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4394         enable libdc1394_1; } ||
4395     die "ERROR: No version of libdc1394 found "
4396 fi
4397
4398 if enabled nvenc; then
4399     check_header cuda.h || die "ERROR: cuda.h not found.";
4400     check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4401     check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4402         die "ERROR: NVENC API version 4 or older is not supported";
4403 fi
4404
4405 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4406     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4407     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4408     enable sdl
4409 fi
4410
4411 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4412 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4413
4414 check_header linux/fb.h
4415 check_header linux/videodev2.h
4416 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4417
4418 check_header sys/videoio.h
4419
4420 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4421 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4422 # w32api 3.12 had it defined wrong
4423 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4424
4425 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4426 { check_header dev/bktr/ioctl_meteor.h &&
4427   check_header dev/bktr/ioctl_bt848.h; } ||
4428 { check_header machine/ioctl_meteor.h &&
4429   check_header machine/ioctl_bt848.h; } ||
4430 { check_header dev/video/meteor/ioctl_meteor.h &&
4431   check_header dev/video/bktr/ioctl_bt848.h; } ||
4432 check_header dev/ic/bt8xx.h
4433
4434 check_header sndio.h
4435 check_header sys/soundcard.h
4436 check_header soundcard.h
4437
4438 enabled_any alsa_indev alsa_outdev &&
4439     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4440
4441 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4442     check_func jack_port_get_latency_range -ljack
4443
4444 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4445
4446 if enabled libcdio; then
4447     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4448     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4449     die "ERROR: No usable libcdio/cdparanoia found"
4450 fi
4451
4452 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4453
4454 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4455     check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4456         enabled libxcb && die "ERROR: libxcb not found";
4457     } && disable x11grab && enable libxcb
4458
4459     disabled libxcb_shm ||
4460         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4461             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4462         } && check_header sys/shm.h && enable libxcb_shm
4463
4464     disabled libxcb_xfixes ||
4465         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4466             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4467         } && enable libxcb_xfixes
4468
4469     add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4470     add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4471 fi
4472
4473 if enabled x11grab; then
4474     enabled xlib || die "ERROR: Xlib not found"
4475     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4476     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4477 fi
4478
4479 enabled vaapi && enabled xlib &&
4480     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4481     enable vaapi_x11
4482
4483 enabled vdpau &&
4484     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4485     disable vdpau
4486
4487 enabled vdpau && enabled xlib &&
4488     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4489     prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4490     enable vdpau_x11
4491
4492 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4493
4494 # add some useful compiler flags if supported
4495 check_cflags -Wdeclaration-after-statement
4496 check_cflags -Wall
4497 check_cflags -Wdisabled-optimization
4498 check_cflags -Wpointer-arith
4499 check_cflags -Wredundant-decls
4500 check_cflags -Wcast-qual
4501 check_cflags -Wwrite-strings
4502 check_cflags -Wtype-limits
4503 check_cflags -Wundef
4504 check_cflags -Wmissing-prototypes
4505 check_cflags -Wstrict-prototypes
4506 enabled extra_warnings && check_cflags -Winline
4507
4508 check_disable_warning(){
4509     warning_flag=-W${1#-Wno-}
4510     test_cflags $warning_flag && add_cflags $1
4511 }
4512
4513 check_disable_warning -Wno-parentheses
4514 check_disable_warning -Wno-switch
4515 check_disable_warning -Wno-format-zero-length
4516 check_disable_warning -Wno-pointer-sign
4517
4518 # add some linker flags
4519 check_ldflags -Wl,--warn-common
4520 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4521 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4522 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4523
4524 # add some strip flags
4525 # -wN '..@*' is more selective than -x, but not available everywhere.
4526 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4527
4528 enabled neon_clobber_test &&
4529     check_ldflags -Wl,--wrap,avcodec_open2              \
4530                   -Wl,--wrap,avcodec_decode_audio4      \
4531                   -Wl,--wrap,avcodec_decode_video2      \
4532                   -Wl,--wrap,avcodec_decode_subtitle2   \
4533                   -Wl,--wrap,avcodec_encode_audio2      \
4534                   -Wl,--wrap,avcodec_encode_video2      \
4535                   -Wl,--wrap,avcodec_encode_subtitle    \
4536                   -Wl,--wrap,avresample_convert ||
4537     disable neon_clobber_test
4538
4539 enabled xmm_clobber_test &&
4540     check_ldflags -Wl,--wrap,avcodec_open2              \
4541                   -Wl,--wrap,avcodec_decode_audio4      \
4542                   -Wl,--wrap,avcodec_decode_video2      \
4543                   -Wl,--wrap,avcodec_decode_subtitle2   \
4544                   -Wl,--wrap,avcodec_encode_audio2      \
4545                   -Wl,--wrap,avcodec_encode_video2      \
4546                   -Wl,--wrap,avcodec_encode_subtitle    \
4547                   -Wl,--wrap,avresample_convert         \
4548                   -Wl,--wrap,sws_scale ||
4549     disable xmm_clobber_test
4550
4551 echo "X{};" > $TMPV
4552 if test_ldflags -Wl,--version-script,$TMPV; then
4553     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4554     check_cc <<EOF && enable symver_asm_label
4555 void ff_foo(void) __asm__ ("av_foo@VERSION");
4556 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4557 EOF
4558     check_cc <<EOF && enable symver_gnu_asm
4559 __asm__(".symver ff_foo,av_foo@VERSION");
4560 void ff_foo(void) {}
4561 EOF
4562 fi
4563
4564 if [ -z "$optflags" ]; then
4565     if enabled small; then
4566         optflags=$cflags_size
4567     elif enabled optimizations; then
4568         optflags=$cflags_speed
4569     else
4570         optflags=$cflags_noopt
4571     fi
4572 fi
4573
4574 check_optflags(){
4575     check_cflags "$@"
4576     enabled lto && check_ldflags "$@"
4577 }
4578
4579
4580 if enabled lto; then
4581     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4582     check_cflags  -flto
4583     check_ldflags -flto $cpuflags
4584 fi
4585
4586 check_optflags $optflags
4587 check_optflags -fno-math-errno
4588 check_optflags -fno-signed-zeros
4589
4590 if enabled icc; then
4591     # Just warnings, no remarks
4592     check_cflags -w1
4593     # -wd: Disable following warnings
4594     # 144, 167, 556: -Wno-pointer-sign
4595     # 1292: attribute "foo" ignored
4596     # 1419: external declaration in primary source file
4597     # 10006: ignoring unknown option -fno-signed-zeros
4598     # 10148: ignoring unknown option -Wno-parentheses
4599     # 10156: ignoring option '-W'; no argument required
4600     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4601     # 11030: Warning unknown option --as-needed
4602     # 10156: ignoring option '-export'; no argument required
4603     check_ldflags -wd10156,11030
4604     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4605     enable ebp_available
4606     if enabled x86_32; then
4607         icc_version=$($cc -dumpversion)
4608         test ${icc_version%%.*} -ge 11 &&
4609             check_cflags -falign-stack=maintain-16-byte ||
4610             disable aligned_stack
4611     fi
4612 elif enabled ccc; then
4613     # disable some annoying warnings
4614     add_cflags -msg_disable bitnotint
4615     add_cflags -msg_disable mixfuncvoid
4616     add_cflags -msg_disable nonstandcast
4617     add_cflags -msg_disable unsupieee
4618 elif enabled gcc; then
4619     check_optflags -fno-tree-vectorize
4620     check_cflags -Werror=implicit-function-declaration
4621     check_cflags -Werror=missing-prototypes
4622     check_cflags -Werror=return-type
4623     check_cflags -Werror=declaration-after-statement
4624     check_cflags -Werror=vla
4625     check_cflags -Werror=format-security
4626     check_cflags -fdiagnostics-color=auto
4627     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4628 elif enabled llvm_gcc; then
4629     check_cflags -mllvm -stack-alignment=16
4630 elif enabled clang; then
4631     check_cflags -mllvm -stack-alignment=16
4632     check_cflags -Qunused-arguments
4633     check_cflags -Werror=implicit-function-declaration
4634     check_cflags -Werror=missing-prototypes
4635     check_cflags -Werror=return-type
4636 elif enabled cparser; then
4637     add_cflags -Wno-missing-variable-declarations
4638     add_cflags -Wno-empty-statement
4639 elif enabled armcc; then
4640     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4641     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4642     # 2523: use of inline assembly is deprecated
4643     add_cflags -W${armcc_opt},--diag_suppress=2523
4644     add_cflags -W${armcc_opt},--diag_suppress=1207
4645     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4646     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4647     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4648     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4649 elif enabled tms470; then
4650     add_cflags -pds=824 -pds=837
4651     disable inline_asm
4652 elif enabled pathscale; then
4653     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4654 elif enabled_any msvc icl; then
4655     enabled x86_32 && disable aligned_stack
4656     enabled_all x86_32 debug && add_cflags -Oy-
4657     enabled debug && add_ldflags -debug
4658     enable pragma_deprecated
4659     if enabled icl; then
4660         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4661         # (correctly) on icl 13.x.
4662         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4663             add_cflags -Qansi-alias
4664         # icl will pass the inline asm tests but inline asm is currently
4665         # not supported (build will fail)
4666         disable inline_asm
4667     fi
4668     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4669     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4670 fi
4671
4672 case $as_type in
4673     clang)
4674         add_asflags -Qunused-arguments
4675     ;;
4676 esac
4677
4678 case $ld_type in
4679     clang)
4680         check_ldflags -Qunused-arguments
4681     ;;
4682 esac
4683
4684 case $target_os in
4685     osf1)
4686         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4687     ;;
4688     plan9)
4689         add_cppflags -Dmain=plan9_main
4690     ;;
4691 esac
4692
4693 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4694
4695 check_deps $CONFIG_LIST       \
4696            $CONFIG_EXTRA      \
4697            $HAVE_LIST         \
4698            $ALL_COMPONENTS    \
4699
4700 enabled_all dxva2 CoTaskMemFree &&
4701     prepend avconv_libs $($ldflags_filter "-lole32") &&
4702     enable dxva2_lib
4703
4704 ! enabled_any memalign posix_memalign aligned_malloc &&
4705     enabled simd_align_16 && enable memalign_hack
4706
4707 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4708
4709 for thread in $THREADS_LIST; do
4710     if enabled $thread; then
4711         test -n "$thread_type" &&
4712             die "ERROR: Only one thread type must be selected." ||
4713             thread_type="$thread"
4714     fi
4715 done
4716
4717 enabled zlib && add_cppflags -DZLIB_CONST
4718
4719 # conditional library dependencies, in linking order
4720 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
4721 enabled resample_filter && prepend avfilter_deps "avresample"
4722 enabled scale_filter    && prepend avfilter_deps "swscale"
4723
4724 enabled opus_decoder    && prepend avcodec_deps "avresample"
4725
4726 expand_deps(){
4727     lib_deps=${1}_deps
4728     eval "deps=\$$lib_deps"
4729     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4730     unique $lib_deps
4731 }
4732
4733 map 'expand_deps $v' $LIBRARY_LIST
4734
4735 echo "install prefix            $prefix"
4736 echo "source path               $source_path"
4737 echo "C compiler                $cc"
4738 echo "C library                 $libc_type"
4739 if test "$host_cc" != "$cc"; then
4740     echo "host C compiler           $host_cc"
4741     echo "host C library            $host_libc_type"
4742 fi
4743 echo "ARCH                      $arch ($cpu)"
4744 if test "$build_suffix" != ""; then
4745     echo "build suffix              $build_suffix"
4746 fi
4747 if test "$extra_version" != ""; then
4748     echo "version string suffix     $extra_version"
4749 fi
4750 echo "big-endian                ${bigendian-no}"
4751 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4752 if enabled x86; then
4753     echo "${yasmexe}                      ${yasm-no}"
4754     echo "MMX enabled               ${mmx-no}"
4755     echo "MMXEXT enabled            ${mmxext-no}"
4756     echo "3DNow! enabled            ${amd3dnow-no}"
4757     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4758     echo "SSE enabled               ${sse-no}"
4759     echo "SSSE3 enabled             ${ssse3-no}"
4760     echo "AVX enabled               ${avx-no}"
4761     echo "XOP enabled               ${xop-no}"
4762     echo "FMA3 enabled              ${fma3-no}"
4763     echo "FMA4 enabled              ${fma4-no}"
4764     echo "i686 features enabled     ${i686-no}"
4765     echo "CMOV is fast              ${fast_cmov-no}"
4766     echo "EBX available             ${ebx_available-no}"
4767     echo "EBP available             ${ebp_available-no}"
4768 fi
4769 if enabled aarch64; then
4770     echo "NEON enabled              ${neon-no}"
4771     echo "VFP enabled               ${vfp-no}"
4772 fi
4773 if enabled arm; then
4774     echo "ARMv5TE enabled           ${armv5te-no}"
4775     echo "ARMv6 enabled             ${armv6-no}"
4776     echo "ARMv6T2 enabled           ${armv6t2-no}"
4777     echo "VFP enabled               ${vfp-no}"
4778     echo "NEON enabled              ${neon-no}"
4779 fi
4780 if enabled ppc; then
4781     echo "AltiVec enabled           ${altivec-no}"
4782     echo "VSX enabled               ${vsx-no}"
4783     echo "POWER8 enabled            ${power8-no}"
4784     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4785     echo "dcbzl available           ${dcbzl-no}"
4786 fi
4787 echo "debug symbols             ${debug-no}"
4788 echo "optimize for size         ${small-no}"
4789 echo "optimizations             ${optimizations-no}"
4790 echo "static                    ${static-no}"
4791 echo "shared                    ${shared-no}"
4792 echo "new filter support        ${avfilter-no}"
4793 echo "network support           ${network-no}"
4794 echo "threading support         ${thread_type-no}"