hevc_parser: parse and export some stream parameters
[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     fmtconvert
1592     gcrypt
1593     gmp
1594     golomb
1595     gplv3
1596     h263dsp
1597     h264chroma
1598     h264dsp
1599     h264pred
1600     h264qpel
1601     hpeldsp
1602     huffman
1603     huffyuvdsp
1604     huffyuvencdsp
1605     idctdsp
1606     iirfilter
1607     imdct15
1608     intrax8
1609     jpegtables
1610     lgplv3
1611     lpc
1612     me_cmp
1613     mpeg_er
1614     mpegaudio
1615     mpegaudiodsp
1616     mpegvideo
1617     mpegvideoenc
1618     pixblockdsp
1619     qpeldsp
1620     qsv
1621     qsvdec
1622     qsvenc
1623     rangecoder
1624     riffdec
1625     riffenc
1626     rtpdec
1627     rtpenc_chain
1628     sinewin
1629     snappy
1630     startcode
1631     texturedsp
1632     texturedspenc
1633     tpeldsp
1634     videodsp
1635     vp3dsp
1636     wma_freqs
1637 "
1638
1639 CMDLINE_SELECT="
1640     $ARCH_EXT_LIST
1641     $CONFIG_LIST
1642     $HAVE_LIST_CMDLINE
1643     $THREADS_LIST
1644     asm
1645     cross_compile
1646     debug
1647     extra_warnings
1648     logging
1649     lto
1650     optimizations
1651     rpath
1652 "
1653
1654 PATHS_LIST="
1655     bindir
1656     datadir
1657     docdir
1658     incdir
1659     libdir
1660     mandir
1661     prefix
1662     shlibdir
1663 "
1664
1665 CMDLINE_SET="
1666     $PATHS_LIST
1667     ar
1668     arch
1669     as
1670     build_suffix
1671     cc
1672     cpu
1673     cross_prefix
1674     dep_cc
1675     env
1676     extra_version
1677     host_cc
1678     host_cflags
1679     host_ld
1680     host_ldflags
1681     host_libs
1682     host_os
1683     ld
1684     logfile
1685     malloc_prefix
1686     nm
1687     optflags
1688     pkg_config
1689     pkg_config_flags
1690     random_seed
1691     samples
1692     sysinclude
1693     sysroot
1694     target_exec
1695     target_os
1696     target_path
1697     target_samples
1698     toolchain
1699 "
1700
1701 CMDLINE_APPEND="
1702     extra_cflags
1703     host_cppflags
1704 "
1705
1706 # code dependency declarations
1707
1708 # architecture extensions
1709
1710 armv5te_deps="arm"
1711 armv6_deps="arm"
1712 armv6t2_deps="arm"
1713 armv8_deps="aarch64"
1714 neon_deps_any="aarch64 arm"
1715 intrinsics_neon_deps="neon"
1716 vfp_deps_any="aarch64 arm"
1717 vfpv3_deps="vfp"
1718
1719 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1720
1721 altivec_deps="ppc"
1722 ppc4xx_deps="ppc"
1723 vsx_deps="altivec"
1724 power8_deps="vsx"
1725
1726 cpunop_deps="i686"
1727 x86_64_select="i686"
1728 x86_64_suggest="fast_cmov"
1729
1730 amd3dnow_deps="mmx"
1731 amd3dnowext_deps="amd3dnow"
1732 i686_deps="x86"
1733 mmx_deps="x86"
1734 mmxext_deps="mmx"
1735 sse_deps="mmxext"
1736 sse2_deps="sse"
1737 sse3_deps="sse2"
1738 ssse3_deps="sse3"
1739 sse4_deps="ssse3"
1740 sse42_deps="sse4"
1741 avx_deps="sse42"
1742 xop_deps="avx"
1743 fma3_deps="avx"
1744 fma4_deps="avx"
1745 avx2_deps="avx"
1746
1747 mmx_external_deps="yasm"
1748 mmx_inline_deps="inline_asm"
1749 mmx_suggest="mmx_external mmx_inline"
1750
1751 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1752     eval dep=\$${ext}_deps
1753     eval ${ext}_external_deps='"${dep}_external"'
1754     eval ${ext}_inline_deps='"${dep}_inline"'
1755     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1756 done
1757
1758 aligned_stack_if_any="aarch64 ppc x86"
1759 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1760 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1761 fast_unaligned_if_any="aarch64 ppc x86"
1762 simd_align_16_if_any="altivec neon sse"
1763
1764 # system capabilities
1765 symver_if_any="symver_asm_label symver_gnu_asm"
1766 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
1767
1768 # threading support
1769 atomics_gcc_if="sync_val_compare_and_swap"
1770 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1771 atomics_win32_if="MemoryBarrier"
1772 atomics_native_if_any="$ATOMICS_LIST"
1773 w32threads_deps="atomics_native"
1774 threads_if_any="$THREADS_LIST"
1775
1776 # subsystems
1777 dct_select="rdft"
1778 error_resilience_select="me_cmp"
1779 faandct_deps="faan fdctdsp"
1780 faanidct_deps="faan idctdsp"
1781 intrax8_select="error_resilience"
1782 mdct_select="fft"
1783 rdft_select="fft"
1784 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1785 mpeg_er_select="error_resilience"
1786 mpegaudio_select="mpegaudiodsp"
1787 mpegaudiodsp_select="dct"
1788 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp videodsp"
1789 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1790 nvenc_deps_any="dlopen LoadLibrary"
1791 nvenc_extralibs='$ldl'
1792 qsvdec_select="qsv"
1793 qsvenc_select="qsv"
1794
1795 # decoders / encoders
1796 aac_decoder_select="imdct15 mdct sinewin"
1797 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1798 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1799 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1800 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1801 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1802 aic_decoder_select="golomb idctdsp"
1803 alac_encoder_select="lpc"
1804 als_decoder_select="bswapdsp"
1805 amrnb_decoder_select="lsp"
1806 amrwb_decoder_select="lsp"
1807 amv_decoder_select="sp5x_decoder"
1808 ape_decoder_select="bswapdsp"
1809 asv1_decoder_select="blockdsp bswapdsp idctdsp"
1810 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
1811 asv2_decoder_select="blockdsp bswapdsp idctdsp"
1812 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
1813 atrac1_decoder_select="mdct sinewin"
1814 atrac3_decoder_select="mdct"
1815 atrac3p_decoder_select="mdct sinewin"
1816 bink_decoder_select="blockdsp hpeldsp"
1817 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
1818 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
1819 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
1820 cllc_decoder_select="bswapdsp"
1821 comfortnoise_encoder_select="lpc"
1822 cook_decoder_select="audiodsp mdct sinewin"
1823 cscd_decoder_select="lzo"
1824 cscd_decoder_suggest="zlib"
1825 dca_decoder_select="fmtconvert mdct"
1826 dds_decoder_select="texturedsp"
1827 dnxhd_decoder_select="blockdsp idctdsp"
1828 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
1829 dvvideo_decoder_select="dvprofile idctdsp"
1830 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
1831 dxa_decoder_deps="zlib"
1832 eac3_decoder_select="ac3_decoder"
1833 eac3_encoder_select="ac3_encoder"
1834 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
1835 eatgq_decoder_select="aandcttables idctdsp"
1836 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
1837 exr_decoder_deps="zlib"
1838 ffv1_decoder_select="golomb rangecoder"
1839 ffv1_encoder_select="rangecoder"
1840 ffvhuff_decoder_select="huffyuv_decoder"
1841 ffvhuff_encoder_select="huffyuv_encoder"
1842 fic_decoder_select="golomb"
1843 flac_decoder_select="golomb"
1844 flac_encoder_select="bswapdsp golomb lpc"
1845 flashsv_decoder_deps="zlib"
1846 flashsv_encoder_deps="zlib"
1847 flashsv2_decoder_deps="zlib"
1848 flv_decoder_select="h263_decoder"
1849 flv_encoder_select="h263_encoder"
1850 fourxm_decoder_select="blockdsp bswapdsp"
1851 fraps_decoder_select="bswapdsp huffman"
1852 g2m_decoder_deps="zlib"
1853 g2m_decoder_select="blockdsp idctdsp jpegtables"
1854 h261_decoder_select="mpeg_er mpegvideo"
1855 h261_encoder_select="aandcttables mpegvideoenc"
1856 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
1857 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1858 h263i_decoder_select="h263_decoder"
1859 h263p_encoder_select="h263_encoder"
1860 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
1861 h264_decoder_suggest="error_resilience"
1862 h264_nvenc_encoder_deps="nvenc"
1863 h264_qsv_decoder_deps="libmfx"
1864 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
1865 h264_qsv_encoder_deps="libmfx"
1866 h264_qsv_encoder_select="qsvenc"
1867 hap_decoder_select="snappy texturedsp"
1868 hap_encoder_deps="libsnappy"
1869 hap_encoder_select="texturedspenc"
1870 hevc_decoder_select="bswapdsp cabac golomb videodsp"
1871 hevc_nvenc_encoder_deps="nvenc"
1872 hevc_qsv_encoder_deps="libmfx"
1873 hevc_qsv_encoder_select="qsvenc"
1874 huffyuv_decoder_select="bswapdsp huffyuvdsp"
1875 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
1876 iac_decoder_select="imc_decoder"
1877 imc_decoder_select="bswapdsp fft mdct sinewin"
1878 indeo3_decoder_select="hpeldsp"
1879 interplay_video_decoder_select="hpeldsp"
1880 jpegls_decoder_select="golomb mjpeg_decoder"
1881 jpegls_encoder_select="golomb"
1882 jv_decoder_select="blockdsp"
1883 lagarith_decoder_select="huffyuvdsp"
1884 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
1885 loco_decoder_select="golomb"
1886 mdec_decoder_select="blockdsp idctdsp mpegvideo"
1887 metasound_decoder_select="lsp mdct sinewin"
1888 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
1889 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
1890 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
1891 mjpegb_decoder_select="mjpeg_decoder"
1892 mlp_decoder_select="mlp_parser"
1893 motionpixels_decoder_select="bswapdsp"
1894 mp1_decoder_select="mpegaudio"
1895 mp1float_decoder_select="mpegaudio"
1896 mp2_decoder_select="mpegaudio"
1897 mp2float_decoder_select="mpegaudio"
1898 mp3_decoder_select="mpegaudio"
1899 mp3adu_decoder_select="mpegaudio"
1900 mp3adufloat_decoder_select="mpegaudio"
1901 mp3float_decoder_select="mpegaudio"
1902 mp3on4_decoder_select="mpegaudio"
1903 mp3on4float_decoder_select="mpegaudio"
1904 mpc7_decoder_select="bswapdsp mpegaudiodsp"
1905 mpc8_decoder_select="mpegaudiodsp"
1906 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1907 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1908 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
1909 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1910 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
1911 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1912 mpeg2_qsv_encoder_deps="libmfx"
1913 mpeg2_qsv_encoder_select="qsvenc"
1914 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1915 mpeg4_encoder_select="h263_encoder"
1916 msmpeg4v1_decoder_select="h263_decoder"
1917 msmpeg4v2_decoder_select="h263_decoder"
1918 msmpeg4v2_encoder_select="h263_encoder"
1919 msmpeg4v3_decoder_select="h263_decoder"
1920 msmpeg4v3_encoder_select="h263_encoder"
1921 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
1922 mxpeg_decoder_select="mjpeg_decoder"
1923 nellymoser_decoder_select="mdct sinewin"
1924 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1925 nuv_decoder_select="idctdsp lzo"
1926 on2avc_decoder_select="mdct"
1927 opus_decoder_deps="avresample"
1928 opus_decoder_select="imdct15"
1929 png_decoder_deps="zlib"
1930 png_encoder_deps="zlib"
1931 png_encoder_select="huffyuvencdsp"
1932 prores_decoder_select="idctdsp"
1933 prores_encoder_select="fdctdsp"
1934 qcelp_decoder_select="lsp"
1935 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1936 ra_144_encoder_select="audio_frame_queue lpc"
1937 ralf_decoder_select="golomb"
1938 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1939 rv10_encoder_select="h263_encoder"
1940 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
1941 rv20_encoder_select="h263_encoder"
1942 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1943 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
1944 shorten_decoder_select="golomb"
1945 sipr_decoder_select="lsp"
1946 sp5x_decoder_select="mjpeg_decoder"
1947 svq1_decoder_select="hpeldsp"
1948 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
1949 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
1950 svq3_decoder_suggest="zlib"
1951 tak_decoder_select="audiodsp"
1952 tdsc_decoder_deps="zlib"
1953 tdsc_decoder_select="mjpeg_decoder"
1954 theora_decoder_select="vp3_decoder"
1955 thp_decoder_select="mjpeg_decoder"
1956 tiff_decoder_suggest="zlib"
1957 tiff_encoder_suggest="zlib"
1958 truehd_decoder_select="mlp_decoder"
1959 truemotion2_decoder_select="bswapdsp"
1960 truespeech_decoder_select="bswapdsp"
1961 tscc_decoder_deps="zlib"
1962 txd_decoder_select="texturedsp"
1963 twinvq_decoder_select="mdct lsp sinewin"
1964 utvideo_decoder_select="bswapdsp"
1965 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
1966 vble_decoder_select="huffyuvdsp"
1967 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
1968 vc1image_decoder_select="vc1_decoder"
1969 vorbis_decoder_select="mdct"
1970 vorbis_encoder_select="mdct"
1971 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1972 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1973 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1974 vp6a_decoder_select="vp6_decoder"
1975 vp6f_decoder_select="vp6_decoder"
1976 vp7_decoder_select="h264pred videodsp"
1977 vp8_decoder_select="h264pred videodsp"
1978 vp9_decoder_select="videodsp"
1979 webp_decoder_select="vp8_decoder"
1980 wmapro_decoder_select="mdct sinewin wma_freqs"
1981 wmav1_decoder_select="mdct sinewin wma_freqs"
1982 wmav1_encoder_select="mdct sinewin wma_freqs"
1983 wmav2_decoder_select="mdct sinewin wma_freqs"
1984 wmav2_encoder_select="mdct sinewin wma_freqs"
1985 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1986 wmv1_decoder_select="h263_decoder"
1987 wmv1_encoder_select="h263_encoder"
1988 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
1989 wmv2_encoder_select="h263_encoder"
1990 wmv3_decoder_select="vc1_decoder"
1991 wmv3image_decoder_select="wmv3_decoder"
1992 zerocodec_decoder_deps="zlib"
1993 zlib_decoder_deps="zlib"
1994 zlib_encoder_deps="zlib"
1995 zmbv_decoder_deps="zlib"
1996 zmbv_encoder_deps="zlib"
1997
1998 # hardware accelerators
1999 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2000 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2001 vaapi_deps="va_va_h"
2002 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2003 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2004 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2005
2006 h263_vaapi_hwaccel_deps="vaapi"
2007 h263_vaapi_hwaccel_select="h263_decoder"
2008 h263_vdpau_hwaccel_deps="vdpau"
2009 h263_vdpau_hwaccel_select="h263_decoder"
2010 h264_d3d11va_hwaccel_deps="d3d11va"
2011 h264_d3d11va_hwaccel_select="h264_decoder"
2012 h264_dxva2_hwaccel_deps="dxva2"
2013 h264_dxva2_hwaccel_select="h264_decoder"
2014 h264_mmal_decoder_deps="mmal"
2015 h264_mmal_hwaccel_deps="mmal"
2016 h264_mmal_decoder_select="h264_decoder"
2017 h264_mmal_encoder_deps="mmal"
2018 h264_qsv_hwaccel_deps="libmfx"
2019 h264_vaapi_hwaccel_deps="vaapi"
2020 h264_vaapi_hwaccel_select="h264_decoder"
2021 h264_vda_hwaccel_deps="vda"
2022 h264_vda_hwaccel_select="h264_decoder"
2023 h264_vda_old_hwaccel_deps="vda"
2024 h264_vda_old_hwaccel_select="h264_decoder"
2025 h264_vdpau_hwaccel_deps="vdpau"
2026 h264_vdpau_hwaccel_select="h264_decoder"
2027 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2028 hevc_d3d11va_hwaccel_select="hevc_decoder"
2029 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2030 hevc_dxva2_hwaccel_select="hevc_decoder"
2031 mpeg1_vdpau_hwaccel_deps="vdpau"
2032 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2033 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2034 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2035 mpeg2_dxva2_hwaccel_deps="dxva2"
2036 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2037 mpeg2_vaapi_hwaccel_deps="vaapi"
2038 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2039 mpeg2_vdpau_hwaccel_deps="vdpau"
2040 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2041 mpeg4_vaapi_hwaccel_deps="vaapi"
2042 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2043 mpeg4_vdpau_hwaccel_deps="vdpau"
2044 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2045 vc1_d3d11va_hwaccel_deps="d3d11va"
2046 vc1_d3d11va_hwaccel_select="vc1_decoder"
2047 vc1_dxva2_hwaccel_deps="dxva2"
2048 vc1_dxva2_hwaccel_select="vc1_decoder"
2049 vc1_vaapi_hwaccel_deps="vaapi"
2050 vc1_vaapi_hwaccel_select="vc1_decoder"
2051 vc1_vdpau_hwaccel_deps="vdpau"
2052 vc1_vdpau_hwaccel_select="vc1_decoder"
2053 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2054 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2055 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2056 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2057
2058 # parsers
2059 h264_parser_select="h264_decoder"
2060 hevc_parser_select="golomb"
2061 mpegvideo_parser_select="mpegvideo"
2062 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2063 vc1_parser_select="mpegvideo startcode vc1_decoder"
2064
2065 # bitstream_filters
2066 mjpeg2jpeg_bsf_select="jpegtables"
2067
2068 # external libraries
2069 libdcadec_decoder_deps="libdcadec"
2070 libfaac_encoder_deps="libfaac"
2071 libfaac_encoder_select="audio_frame_queue"
2072 libfdk_aac_decoder_deps="libfdk_aac"
2073 libfdk_aac_encoder_deps="libfdk_aac"
2074 libfdk_aac_encoder_select="audio_frame_queue"
2075 libgsm_decoder_deps="libgsm"
2076 libgsm_encoder_deps="libgsm"
2077 libgsm_ms_decoder_deps="libgsm"
2078 libgsm_ms_encoder_deps="libgsm"
2079 libilbc_decoder_deps="libilbc"
2080 libilbc_encoder_deps="libilbc"
2081 libmp3lame_encoder_deps="libmp3lame"
2082 libmp3lame_encoder_select="audio_frame_queue"
2083 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2084 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2085 libopencore_amrnb_encoder_select="audio_frame_queue"
2086 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2087 libopenh264_encoder_deps="libopenh264"
2088 libopenjpeg_decoder_deps="libopenjpeg"
2089 libopenjpeg_encoder_deps="libopenjpeg"
2090 libopus_decoder_deps="libopus"
2091 libopus_encoder_deps="libopus"
2092 libopus_encoder_select="audio_frame_queue"
2093 libschroedinger_decoder_deps="libschroedinger"
2094 libschroedinger_encoder_deps="libschroedinger"
2095 libspeex_decoder_deps="libspeex"
2096 libspeex_encoder_deps="libspeex"
2097 libspeex_encoder_select="audio_frame_queue"
2098 libtheora_encoder_deps="libtheora"
2099 libtwolame_encoder_deps="libtwolame"
2100 libvo_aacenc_encoder_deps="libvo_aacenc"
2101 libvo_aacenc_encoder_select="audio_frame_queue"
2102 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2103 libvorbis_encoder_deps="libvorbis"
2104 libvorbis_encoder_select="audio_frame_queue"
2105 libvpx_vp8_decoder_deps="libvpx"
2106 libvpx_vp8_encoder_deps="libvpx"
2107 libvpx_vp9_decoder_deps="libvpx"
2108 libvpx_vp9_encoder_deps="libvpx"
2109 libwavpack_encoder_deps="libwavpack"
2110 libwebp_encoder_deps="libwebp"
2111 libx264_encoder_deps="libx264"
2112 libx265_encoder_deps="libx265"
2113 libxavs_encoder_deps="libxavs"
2114 libxvid_encoder_deps="libxvid"
2115
2116 # demuxers / muxers
2117 ac3_demuxer_select="ac3_parser"
2118 asf_demuxer_select="riffdec"
2119 asf_muxer_select="riffenc"
2120 asf_stream_muxer_select="asf_muxer"
2121 avi_demuxer_select="riffdec"
2122 avi_muxer_select="riffenc"
2123 avisynth_demuxer_deps="avisynth"
2124 avisynth_demuxer_select="riffdec"
2125 caf_demuxer_select="riffdec"
2126 dash_muxer_select="mp4_muxer"
2127 dirac_demuxer_select="dirac_parser"
2128 dv_demuxer_select="dvprofile"
2129 dv_muxer_select="dvprofile"
2130 dxa_demuxer_select="riffdec"
2131 eac3_demuxer_select="ac3_parser"
2132 f4v_muxer_select="mov_muxer"
2133 flac_demuxer_select="flac_parser"
2134 hds_muxer_select="flv_muxer"
2135 hls_muxer_select="mpegts_muxer"
2136 ipod_muxer_select="mov_muxer"
2137 ismv_muxer_select="mov_muxer"
2138 matroska_audio_muxer_select="matroska_muxer"
2139 matroska_demuxer_select="riffdec"
2140 matroska_demuxer_suggest="bzlib lzo zlib"
2141 matroska_muxer_select="riffenc"
2142 mmf_muxer_select="riffenc"
2143 mov_demuxer_select="riffdec"
2144 mov_demuxer_suggest="zlib"
2145 mov_muxer_select="riffenc rtpenc_chain"
2146 mp3_demuxer_select="mpegaudio_parser"
2147 mp4_muxer_select="mov_muxer"
2148 mpegts_muxer_select="adts_muxer latm_muxer"
2149 mpegtsraw_demuxer_select="mpegts_demuxer"
2150 mxf_d10_muxer_select="mxf_muxer"
2151 nut_muxer_select="riffenc"
2152 nuv_demuxer_select="riffdec"
2153 oga_muxer_select="ogg_muxer"
2154 ogg_demuxer_select="golomb"
2155 opus_muxer_select="ogg_muxer"
2156 psp_muxer_select="mov_muxer"
2157 rtp_demuxer_select="sdp_demuxer"
2158 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2159 rtsp_demuxer_select="http_protocol rtpdec"
2160 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2161 sap_demuxer_select="sdp_demuxer"
2162 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2163 sdp_demuxer_select="rtpdec"
2164 smoothstreaming_muxer_select="ismv_muxer"
2165 spdif_muxer_select="aac_parser"
2166 spx_muxer_select="ogg_muxer"
2167 tak_demuxer_select="tak_parser"
2168 tg2_muxer_select="mov_muxer"
2169 tgp_muxer_select="mov_muxer"
2170 w64_demuxer_select="wav_demuxer"
2171 wav_demuxer_select="riffdec"
2172 wav_muxer_select="riffenc"
2173 webm_muxer_select="riffenc"
2174 wtv_demuxer_select="riffdec"
2175 xmv_demuxer_select="riffdec"
2176 xwma_demuxer_select="riffdec"
2177
2178 # indevs / outdevs
2179 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2180 alsa_outdev_deps="alsa_asoundlib_h"
2181 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2182 dv1394_indev_deps="dv1394"
2183 dv1394_indev_select="dv_demuxer"
2184 fbdev_indev_deps="linux_fb_h"
2185 jack_indev_deps="jack_jack_h pthreads"
2186 libcdio_indev_deps="libcdio"
2187 libdc1394_indev_deps="libdc1394"
2188 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2189 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2190 pulse_indev_deps="libpulse"
2191 sndio_indev_deps="sndio_h"
2192 sndio_outdev_deps="sndio_h"
2193 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2194 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2195 vfwcap_indev_extralibs="-lavicap32"
2196 x11grab_indev_deps="x11grab"
2197 x11grab_xcb_indev_deps="libxcb"
2198
2199 # protocols
2200 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2201 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2202 ffrtmpcrypt_protocol_select="tcp_protocol"
2203 ffrtmphttp_protocol_deps="!librtmp_protocol"
2204 ffrtmphttp_protocol_select="http_protocol"
2205 gopher_protocol_select="network"
2206 http_protocol_select="tcp_protocol"
2207 httpproxy_protocol_select="tcp_protocol"
2208 https_protocol_select="tls_protocol"
2209 icecast_protocol_select="http_protocol"
2210 librtmp_protocol_deps="librtmp"
2211 librtmpe_protocol_deps="librtmp"
2212 librtmps_protocol_deps="librtmp"
2213 librtmpt_protocol_deps="librtmp"
2214 librtmpte_protocol_deps="librtmp"
2215 mmsh_protocol_select="http_protocol"
2216 mmst_protocol_select="network"
2217 rtmp_protocol_deps="!librtmp_protocol"
2218 rtmp_protocol_select="tcp_protocol"
2219 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2220 rtmps_protocol_deps="!librtmp_protocol"
2221 rtmps_protocol_select="tls_protocol"
2222 rtmpt_protocol_select="ffrtmphttp_protocol"
2223 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2224 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2225 rtp_protocol_select="udp_protocol"
2226 sctp_protocol_deps="struct_sctp_event_subscribe"
2227 sctp_protocol_select="network"
2228 srtp_protocol_select="rtp_protocol"
2229 tcp_protocol_select="network"
2230 tls_gnutls_protocol_deps="gnutls"
2231 tls_gnutls_protocol_select="tcp_protocol"
2232 tls_openssl_protocol_deps="openssl !tls_gnutls_protocol"
2233 tls_openssl_protocol_select="tcp_protocol"
2234 tls_protocol_deps_any="tls_gnutls_protocol tls_openssl_protocol"
2235 udp_protocol_select="network"
2236 unix_protocol_deps="sys_un_h"
2237 unix_protocol_select="network"
2238
2239 # filters
2240 blackframe_filter_deps="gpl"
2241 boxblur_filter_deps="gpl"
2242 bs2b_filter_deps="libbs2b"
2243 cropdetect_filter_deps="gpl"
2244 delogo_filter_deps="gpl"
2245 drawtext_filter_deps="libfreetype"
2246 frei0r_filter_deps="frei0r dlopen"
2247 frei0r_filter_extralibs='$ldl'
2248 frei0r_src_filter_deps="frei0r dlopen"
2249 frei0r_src_filter_extralibs='$ldl'
2250 hqdn3d_filter_deps="gpl"
2251 interlace_filter_deps="gpl"
2252 ocv_filter_deps="libopencv"
2253 resample_filter_deps="avresample"
2254 scale_filter_deps="swscale"
2255
2256 # examples
2257 avcodec_example_deps="avcodec avutil"
2258 filter_audio_example_deps="avfilter avutil"
2259 metadata_example_deps="avformat avutil"
2260 output_example_deps="avcodec avformat avutil swscale"
2261 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2262 transcode_aac_example_deps="avcodec avformat avresample"
2263
2264 # libraries, in linking order
2265 avcodec_deps="avutil"
2266 avdevice_deps="avformat avcodec avutil"
2267 avfilter_deps="avutil"
2268 avformat_deps="avcodec avutil"
2269 avresample_deps="avutil"
2270 swscale_deps="avutil"
2271
2272 # programs
2273 avconv_deps="avcodec avfilter avformat avresample swscale"
2274 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2275                fps_filter null_filter resample_filter scale_filter
2276                setpts_filter trim_filter"
2277 avplay_deps="avcodec avformat avresample swscale sdl"
2278 avplay_libs='$sdl_libs'
2279 avplay_select="rdft transpose_filter hflip_filter vflip_filter"
2280 avprobe_deps="avcodec avformat"
2281
2282 # documentation
2283 pod2man_deps="doc"
2284 texi2html_deps="doc"
2285
2286 # default parameters
2287
2288 logfile="config.log"
2289
2290 # installation paths
2291 prefix_default="/usr/local"
2292 bindir_default='${prefix}/bin'
2293 datadir_default='${prefix}/share/avconv'
2294 docdir_default='${prefix}/share/doc/libav'
2295 incdir_default='${prefix}/include'
2296 libdir_default='${prefix}/lib'
2297 mandir_default='${prefix}/share/man'
2298 shlibdir_default="$libdir_default"
2299
2300 # toolchain
2301 ar_default="ar"
2302 cc_default="gcc"
2303 host_cc_default="gcc"
2304 cp_f="cp -f"
2305 ln_s="ln -s -f"
2306 nm_default="nm -g"
2307 objformat="elf"
2308 pkg_config_default=pkg-config
2309 ranlib="ranlib"
2310 strip="strip"
2311 yasmexe="yasm"
2312
2313 # machine
2314 arch_default=$(uname -m)
2315 cpu="generic"
2316 intrinsics="none"
2317
2318 # OS
2319 target_os_default=$(tolower $(uname -s))
2320 host_os=$target_os_default
2321
2322 # configurable options
2323 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2324
2325 enable asm
2326 enable debug
2327 enable doc
2328 enable faan faandct faanidct
2329 enable optimizations
2330 enable safe_bitstream_reader
2331 enable static
2332 enable swscale_alpha
2333 enable valgrind_backtrace
2334
2335 # By default, enable only those hwaccels that have no external dependencies.
2336 enable d3d11va dxva2 vda vdpau
2337
2338 # build settings
2339 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2340 LIBPREF="lib"
2341 LIBSUF=".a"
2342 FULLNAME='$(NAME)$(BUILDSUF)'
2343 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2344 SLIBPREF="lib"
2345 SLIBSUF=".so"
2346 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2347 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2348 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2349 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2350 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2351 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2352
2353 asflags_filter=echo
2354 cflags_filter=echo
2355 ldflags_filter=echo
2356
2357 AS_C='-c'
2358 AS_O='-o $@'
2359 CC_C='-c'
2360 CC_E='-E -o $@'
2361 CC_O='-o $@'
2362 LD_O='-o $@'
2363 LD_LIB='-l%'
2364 LD_PATH='-L'
2365 HOSTCC_C='-c'
2366 HOSTCC_E='-E -o $@'
2367 HOSTCC_O='-o $@'
2368 HOSTLD_O='-o $@'
2369
2370 host_libs='-lm'
2371 host_cflags_filter=echo
2372 host_ldflags_filter=echo
2373
2374 target_path='$(CURDIR)'
2375
2376 # since the object filename is not given with the -MM flag, the compiler
2377 # is only able to print the basename, and we must add the path ourselves
2378 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2379 DEPFLAGS='-MM'
2380
2381 # find source path
2382 if test -f configure; then
2383     source_path=.
2384 else
2385     source_path=$(cd $(dirname "$0"); pwd)
2386     echo "$source_path" | grep -q '[[:blank:]]' &&
2387         die "Out of tree builds are impossible with whitespace in source path."
2388     test -e "$source_path/config.h" &&
2389         die "Out of tree builds are impossible with config.h in source dir."
2390 fi
2391
2392 for v in "$@"; do
2393     r=${v#*=}
2394     l=${v%"$r"}
2395     r=$(sh_quote "$r")
2396     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2397 done
2398
2399 find_things(){
2400     thing=$1
2401     pattern=$2
2402     file=$source_path/$3
2403     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2404 }
2405
2406 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2407 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2408 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2409 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2410 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2411 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2412 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2413 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2414 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2415 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2416 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2417
2418 ALL_COMPONENTS="
2419     $BSF_LIST
2420     $DECODER_LIST
2421     $DEMUXER_LIST
2422     $ENCODER_LIST
2423     $FILTER_LIST
2424     $HWACCEL_LIST
2425     $INDEV_LIST
2426     $MUXER_LIST
2427     $OUTDEV_LIST
2428     $PARSER_LIST
2429     $PROTOCOL_LIST
2430 "
2431
2432 for n in $COMPONENT_LIST; do
2433     v=$(toupper ${n%s})_LIST
2434     eval enable \$$v
2435     eval ${n}_if_any="\$$v"
2436 done
2437
2438 enable $ARCH_EXT_LIST
2439
2440 die_unknown(){
2441     echo "Unknown option \"$1\"."
2442     echo "See $0 --help for available options."
2443     exit 1
2444 }
2445
2446 print_3_columns() {
2447     cat | tr ' ' '\n' | sort | pr -r -3 -t
2448 }
2449
2450 show_list() {
2451     suffix=_$1
2452     shift
2453     echo $* | sed s/$suffix//g | print_3_columns
2454     exit 0
2455 }
2456
2457 rand_list(){
2458     IFS=', '
2459     set -- $*
2460     unset IFS
2461     for thing; do
2462         comp=${thing%:*}
2463         prob=${thing#$comp}
2464         prob=${prob#:}
2465         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2466         echo "prob ${prob:-0.5}"
2467         printf '%s\n' $comp
2468     done
2469 }
2470
2471 do_random(){
2472     action=$1
2473     shift
2474     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2475     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2476 }
2477
2478 for opt do
2479     optval="${opt#*=}"
2480     case "$opt" in
2481         --extra-ldflags=*)
2482             add_ldflags $optval
2483         ;;
2484         --extra-ldexeflags=*)
2485             add_ldexeflags $optval
2486         ;;
2487         --extra-libs=*)
2488             add_extralibs $optval
2489         ;;
2490         --disable-devices)
2491             disable $INDEV_LIST $OUTDEV_LIST
2492         ;;
2493         --enable-debug=*)
2494             debuglevel="$optval"
2495         ;;
2496         --disable-programs)
2497             disable $PROGRAM_LIST
2498         ;;
2499         --disable-everything)
2500             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2501         ;;
2502         --disable-all)
2503             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2504             disable $LIBRARY_LIST $PROGRAM_LIST doc
2505         ;;
2506         --enable-random|--disable-random)
2507             action=${opt%%-random}
2508             do_random ${action#--} $COMPONENT_LIST
2509         ;;
2510         --enable-random=*|--disable-random=*)
2511             action=${opt%%-random=*}
2512             do_random ${action#--} $optval
2513         ;;
2514         --enable-*=*|--disable-*=*)
2515             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2516             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2517             eval list=\$$(toupper $thing)_LIST
2518             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2519             $action $(filter "$name" $list)
2520         ;;
2521         --enable-avserver|--disable-avserver*)
2522             warn "avserver has been removed, the ${opt} option is only"\
2523                  "provided for compatibility and will be removed in the future"
2524         ;;
2525         --enable-?*|--disable-?*)
2526             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2527             if is_in $option $COMPONENT_LIST; then
2528                 test $action = disable && action=unset
2529                 eval $action \$$(toupper ${option%s})_LIST
2530             elif is_in $option $CMDLINE_SELECT; then
2531                 $action $option
2532             else
2533                 die_unknown $opt
2534             fi
2535         ;;
2536         --list-*)
2537             NAME="${opt#--list-}"
2538             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2539             NAME=${NAME%s}
2540             eval show_list $NAME \$$(toupper $NAME)_LIST
2541         ;;
2542         --help|-h) show_help
2543         ;;
2544         *)
2545             optname="${opt%%=*}"
2546             optname="${optname#--}"
2547             optname=$(echo "$optname" | sed 's/-/_/g')
2548             if is_in $optname $CMDLINE_SET; then
2549                 eval $optname='$optval'
2550             elif is_in $optname $CMDLINE_APPEND; then
2551                 append $optname "$optval"
2552             else
2553                 die_unknown $opt
2554             fi
2555         ;;
2556     esac
2557 done
2558
2559 for e in $env; do
2560     eval "export $e"
2561 done
2562
2563 disabled logging && logfile=/dev/null
2564
2565 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2566 set >> $logfile
2567
2568 case "$toolchain" in
2569     clang-asan)
2570         cc_default="clang"
2571         add_cflags  -fsanitize=address
2572         add_ldflags -fsanitize=address
2573     ;;
2574     clang-tsan)
2575         cc_default="clang"
2576         add_cflags  -fsanitize=thread -pie
2577         add_ldflags -fsanitize=thread -pie
2578     ;;
2579     clang-usan)
2580         cc_default="clang"
2581         add_cflags  -fsanitize=undefined -O1
2582         add_ldflags -fsanitize=undefined
2583     ;;
2584     gcc-asan)
2585         cc_default="gcc"
2586         add_cflags  -fsanitize=address
2587         add_ldflags -fsanitize=address
2588     ;;
2589     gcc-tsan)
2590         cc_default="gcc"
2591         add_cflags  -fsanitize=thread -pie -fPIC
2592         add_ldflags -fsanitize=thread -pie -fPIC
2593     ;;
2594     gcc-usan)
2595         cc_default="gcc"
2596         add_cflags  -fsanitize=undefined
2597         add_ldflags -fsanitize=undefined
2598     ;;
2599     valgrind-massif)
2600         target_exec_default="valgrind"
2601         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2602     ;;
2603     valgrind-memcheck)
2604         target_exec_default="valgrind"
2605         target_exec_args="--track-origins=yes --leak-check=full"
2606     ;;
2607     msvc)
2608         # Check whether the current MSVC version needs the C99 converter.
2609         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2610         # support enough of C99 to build libav. Default to the new
2611         # behaviour if the regexp was unable to match anything, since this
2612         # successfully parses the version number of existing supported
2613         # versions that require the converter (MSVC 2010 and 2012).
2614         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2615         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2616             cc_default="cl"
2617         else
2618             cc_default="c99wrap cl"
2619         fi
2620         ld_default="link"
2621         nm_default="dumpbin -symbols"
2622         ar_default="lib"
2623         target_os_default="win32"
2624         # Use a relative path for TMPDIR. This makes sure all the
2625         # ffconf temp files are written with a relative path, avoiding
2626         # issues with msys/win32 path conversion for MSVC parameters
2627         # such as -Fo<file> or -out:<file>.
2628         TMPDIR=.
2629     ;;
2630     icl)
2631         cc_default="icl"
2632         ld_default="xilink"
2633         nm_default="dumpbin -symbols"
2634         ar_default="xilib"
2635         target_os_default="win32"
2636         TMPDIR=.
2637     ;;
2638     gcov)
2639         add_cflags  -fprofile-arcs -ftest-coverage
2640         add_ldflags -fprofile-arcs -ftest-coverage
2641     ;;
2642     hardened)
2643         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
2644         add_cflags   -fno-strict-overflow -fstack-protector-all
2645         add_ldflags  -Wl,-z,relro -Wl,-z,now
2646     ;;
2647     ?*)
2648         die "Unknown toolchain $toolchain"
2649     ;;
2650 esac
2651
2652 test -n "$cross_prefix" && enable cross_compile
2653
2654 if enabled cross_compile; then
2655     test -n "$arch" && test -n "$target_os" ||
2656         die "Must specify target arch and OS when cross-compiling"
2657 fi
2658
2659 ar_default="${cross_prefix}${ar_default}"
2660 cc_default="${cross_prefix}${cc_default}"
2661 nm_default="${cross_prefix}${nm_default}"
2662 pkg_config_default="${cross_prefix}${pkg_config_default}"
2663 ranlib="${cross_prefix}${ranlib}"
2664 strip="${cross_prefix}${strip}"
2665
2666 sysinclude_default="${sysroot}/usr/include"
2667
2668 set_default arch cc pkg_config sysinclude target_exec target_os
2669 enabled cross_compile || host_cc_default=$cc
2670 set_default host_cc
2671
2672 if ! $pkg_config --version >/dev/null 2>&1; then
2673     warn "$pkg_config not found, library detection may fail."
2674     pkg_config=false
2675 fi
2676
2677 exesuf() {
2678     case $1 in
2679         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2680     esac
2681 }
2682
2683 EXESUF=$(exesuf $target_os)
2684 HOSTEXESUF=$(exesuf $host_os)
2685
2686 # set temporary file name
2687 : ${TMPDIR:=$TEMPDIR}
2688 : ${TMPDIR:=$TMP}
2689 : ${TMPDIR:=/tmp}
2690
2691 if ! check_cmd mktemp -u XXXXXX; then
2692     # simple replacement for missing mktemp
2693     # NOT SAFE FOR GENERAL USE
2694     mktemp(){
2695         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2696     }
2697 fi
2698
2699 tmpfile(){
2700     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2701         (set -C; exec > $tmp) 2>/dev/null ||
2702         die "Unable to create temporary file in $TMPDIR."
2703     append TMPFILES $tmp
2704     eval $1=$tmp
2705 }
2706
2707 trap 'rm -f -- $TMPFILES' EXIT
2708
2709 tmpfile TMPASM .asm
2710 tmpfile TMPC   .c
2711 tmpfile TMPE   $EXESUF
2712 tmpfile TMPH   .h
2713 tmpfile TMPO   .o
2714 tmpfile TMPS   .S
2715 tmpfile TMPSH  .sh
2716 tmpfile TMPV   .ver
2717
2718 unset -f mktemp
2719
2720 chmod +x $TMPE
2721
2722 # make sure we can execute files in $TMPDIR
2723 cat > $TMPSH 2>> $logfile <<EOF
2724 #! /bin/sh
2725 EOF
2726 chmod +x $TMPSH >> $logfile 2>&1
2727 if ! $TMPSH >> $logfile 2>&1; then
2728     cat <<EOF
2729 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2730 variable to another directory and make sure that it is not mounted noexec.
2731 EOF
2732     die "Sanity test failed."
2733 fi
2734
2735 armasm_flags(){
2736     for flag; do
2737         case $flag in
2738             # Filter out MSVC cl.exe options from cflags that shouldn't
2739             # be passed to gas-preprocessor
2740             -M[TD]*)                                            ;;
2741             *)                  echo $flag                      ;;
2742         esac
2743    done
2744 }
2745
2746 ccc_flags(){
2747     for flag; do
2748         case $flag in
2749             -std=c99)           echo -c99                       ;;
2750             -mcpu=*)            echo -arch ${flag#*=}           ;;
2751             -mieee)             echo -ieee                      ;;
2752             -O*|-fast)          echo $flag                      ;;
2753             -fno-math-errno)    echo -assume nomath_errno       ;;
2754             -g)                 echo -g3                        ;;
2755             -Wall)              echo -msg_enable level2         ;;
2756             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2757             -Wl,*)              echo $flag                      ;;
2758             -f*|-W*)                                            ;;
2759             *)                  echo $flag                      ;;
2760         esac
2761    done
2762 }
2763
2764 cparser_flags(){
2765     for flag; do
2766         case $flag in
2767             -Wno-switch)             echo -Wno-switch-enum ;;
2768             -Wno-format-zero-length) ;;
2769             -Wdisabled-optimization) ;;
2770             -Wno-pointer-sign)       echo -Wno-other ;;
2771             *)                       echo $flag ;;
2772         esac
2773     done
2774 }
2775
2776 msvc_common_flags(){
2777     for flag; do
2778         case $flag in
2779             # In addition to specifying certain flags under the compiler
2780             # specific filters, they must be specified here as well or else the
2781             # generic catch all at the bottom will print the original flag.
2782             -Wall)                ;;
2783             -std=c99)             ;;
2784             # Common flags
2785             -fomit-frame-pointer) ;;
2786             -g)                   echo -Z7 ;;
2787             -fno-math-errno)      ;;
2788             -fno-common)          ;;
2789             -fno-signed-zeros)    ;;
2790             -fPIC)                ;;
2791             -mthumb)              ;;
2792             -march=*)             ;;
2793             -lz)                  echo zlib.lib ;;
2794             -lavifil32)           echo vfw32.lib ;;
2795             -lavicap32)           echo vfw32.lib user32.lib ;;
2796             -l*)                  echo ${flag#-l}.lib ;;
2797             -L*)                  echo -libpath:${flag#-L} ;;
2798             *)                    echo $flag ;;
2799         esac
2800     done
2801 }
2802
2803 msvc_flags(){
2804     msvc_common_flags "$@"
2805     for flag; do
2806         case $flag in
2807             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2808                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2809                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2810                                        -wd4273 -wd4554 -wd4701 ;;
2811         esac
2812     done
2813 }
2814
2815 icl_flags(){
2816     msvc_common_flags "$@"
2817     for flag; do
2818         case $flag in
2819             # Despite what Intel's documentation says -Wall, which is supported
2820             # on Windows, does enable remarks so disable them here.
2821             -Wall)                echo $flag -Qdiag-disable:remark ;;
2822             -std=c99)             echo -Qstd=c99 ;;
2823         esac
2824     done
2825 }
2826
2827 pgi_flags(){
2828     for flag; do
2829         case $flag in
2830             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2831             -fomit-frame-pointer) echo -Mnoframe ;;
2832             -g)                   echo -gopt ;;
2833             *)                    echo $flag ;;
2834         esac
2835     done
2836 }
2837
2838 suncc_flags(){
2839     for flag; do
2840         case $flag in
2841             -march=*|-mcpu=*)
2842                 case "${flag#*=}" in
2843                     native)                   echo -xtarget=native       ;;
2844                     v9|niagara)               echo -xarch=sparc          ;;
2845                     ultrasparc)               echo -xarch=sparcvis       ;;
2846                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2847                     i586|pentium)             echo -xchip=pentium        ;;
2848                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2849                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2850                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2851                     pentium4*)          echo -xtarget=pentium4           ;;
2852                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2853                     *-sse3)             echo -xarch=sse3                 ;;
2854                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2855                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2856                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2857                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2858                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2859                     k8|opteron|athlon64|athlon-fx)
2860                                                echo -xarch=sse2a         ;;
2861                     athlon*)                   echo -xarch=pentium_proa  ;;
2862                 esac
2863                 ;;
2864             -std=c99)             echo -xc99              ;;
2865             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2866             -fPIC)                echo -KPIC -xcode=pic32 ;;
2867             -W*,*)                echo $flag              ;;
2868             -f*-*|-W*|-mimpure-text)                      ;;
2869             -shared)              echo -G                 ;;
2870             *)                    echo $flag              ;;
2871         esac
2872     done
2873 }
2874
2875 tms470_flags(){
2876     for flag; do
2877         case $flag in
2878             -march=*|-mcpu=*)
2879                 case "${flag#*=}" in
2880                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2881                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2882                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2883                     armv6*|arm11*)          echo -mv=6   ;;
2884                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2885                                             echo -mv=5e  ;;
2886                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2887                 esac
2888                 ;;
2889             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2890             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2891             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2892             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2893             -msoft-float)   echo --float_support=vfplib       ;;
2894             -O[0-3]|-mf=*)  echo $flag                        ;;
2895             -g)             echo -g -mn                       ;;
2896             -pds=*)         echo $flag                        ;;
2897             -D*|-I*)        echo $flag                        ;;
2898             --gcc|--abi=*)  echo $flag                        ;;
2899             -me)            echo $flag                        ;;
2900         esac
2901     done
2902 }
2903
2904 probe_cc(){
2905     pfx=$1
2906     _cc=$2
2907
2908     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2909     unset _ld_o _ldflags _ld_lib _ld_path
2910     unset _depflags _DEPCMD _DEPFLAGS
2911     _flags_filter=echo
2912
2913     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2914         _type=llvm_gcc
2915         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2916         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2917         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2918         _cflags_speed='-O3'
2919         _cflags_size='-Os'
2920     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2921         _type=gcc
2922         gcc_version=$($_cc --version | head -n1)
2923         gcc_basever=$($_cc -dumpversion)
2924         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2925         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2926         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2927         if ! $_cc -dumpversion | grep -q '^2\.'; then
2928             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2929         fi
2930         _cflags_speed='-O3'
2931         _cflags_size='-Os'
2932     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2933         _type=icc
2934         _ident=$($_cc --version | head -n1)
2935         _depflags='-MMD'
2936         _cflags_speed='-O3'
2937         _cflags_size='-Os'
2938         _cflags_noopt='-O1'
2939     elif $_cc -v 2>&1 | grep -q xlc; then
2940         _type=xlc
2941         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2942         _cflags_speed='-O5'
2943         _cflags_size='-O5 -qcompact'
2944     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2945         _type=ccc
2946         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2947         _DEPFLAGS='-M'
2948         _cflags_speed='-fast'
2949         _cflags_size='-O1'
2950         _flags_filter=ccc_flags
2951     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
2952         test -d "$sysroot" || die "No valid sysroot specified."
2953         _type=armcc
2954         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
2955         armcc_conf="$PWD/armcc.conf"
2956         $_cc --arm_linux_configure                 \
2957              --arm_linux_config_file="$armcc_conf" \
2958              --configure_sysroot="$sysroot"        \
2959              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2960              die "Error creating armcc configuration file."
2961         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2962         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2963         as_default="${cross_prefix}gcc"
2964         _depflags='-MMD'
2965         _cflags_speed='-O3'
2966         _cflags_size='-Os'
2967     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2968         _type=tms470
2969         _ident=$($_cc -version | head -n1 | tr -s ' ')
2970         _flags='--gcc --abi=eabi -me'
2971         _cc_e='-ppl -fe=$@'
2972         _cc_o='-fe=$@'
2973         _depflags='-ppa -ppd=$(@:.o=.d)'
2974         _cflags_speed='-O3 -mf=5'
2975         _cflags_size='-O3 -mf=2'
2976         _flags_filter=tms470_flags
2977     elif $_cc -v 2>&1 | grep -q clang; then
2978         _type=clang
2979         _ident=$($_cc --version | head -n1)
2980         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2981         _cflags_speed='-O3'
2982         _cflags_size='-Os'
2983     elif $_cc -V 2>&1 | grep -q Sun; then
2984         _type=suncc
2985         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2986         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2987         _DEPFLAGS='-xM1 -xc99'
2988         _ldflags='-std=c99'
2989         _cflags_speed='-O5'
2990         _cflags_size='-O5 -xspace'
2991         _flags_filter=suncc_flags
2992     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2993         _type=pathscale
2994         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2995         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2996         _cflags_speed='-O2'
2997         _cflags_size='-Os'
2998         _flags_filter='filter_out -Wdisabled-optimization'
2999     elif $_cc -v 2>&1 | grep -q Open64; then
3000         _type=open64
3001         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3002         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3003         _cflags_speed='-O2'
3004         _cflags_size='-Os'
3005         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3006     elif $_cc -V 2>&1 | grep -q Portland; then
3007         _type=pgi
3008         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3009         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3010         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3011         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3012         _cflags_noopt="-O1"
3013         _flags_filter=pgi_flags
3014     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3015         _type=armasm
3016         _ident=$($_cc | head -n1)
3017         # 4509: "This form of conditional instruction is deprecated"
3018         _flags="-nologo -ignore 4509"
3019         _flags_filter=armasm_flags
3020     elif $_cc 2>&1 | grep -q Microsoft; then
3021         _type=msvc
3022         _ident=$($_cc 2>&1 | head -n1)
3023         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3024         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3025         _cflags_speed="-O2"
3026         _cflags_size="-O1"
3027         if $_cc 2>&1 | grep -q Linker; then
3028             _ld_o='-out:$@'
3029         else
3030             _ld_o='-Fe$@'
3031         fi
3032         _cc_o='-Fo$@'
3033         _cc_e='-P -Fi$@'
3034         _flags_filter=msvc_flags
3035         _ld_lib='lib%.a'
3036         _ld_path='-libpath:'
3037         _flags='-nologo'
3038         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3039     elif $_cc 2>&1 | grep -q Intel; then
3040         _type=icl
3041         _ident=$($_cc 2>&1 | head -n1)
3042         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3043         # Not only is O3 broken on 13.x+ but it is slower on all previous
3044         # versions (tested) as well.
3045         _cflags_speed="-O2"
3046         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3047         if $_cc 2>&1 | grep -q Linker; then
3048             _ld_o='-out:$@'
3049         else
3050             _ld_o='-Fe$@'
3051         fi
3052         _cc_o='-Fo$@'
3053         _cc_e='-P'
3054         _flags_filter=icl_flags
3055         _ld_lib='lib%.a'
3056         _ld_path='-libpath:'
3057         # -Qdiag-error to make icl error when seeing certain unknown arguments
3058         _flags='-nologo -Qdiag-error:4044,10157'
3059         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3060         # with MSVC which enables it by default.
3061         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3062     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3063         _type=cparser
3064         _ident=$($_cc --version | head -n1)
3065         _depflags='-MMD'
3066         _cflags_speed='-O4'
3067         _cflags_size='-O2'
3068         _flags_filter=cparser_flags
3069     fi
3070
3071     eval ${pfx}_type=\$_type
3072     eval ${pfx}_ident=\$_ident
3073 }
3074
3075 set_ccvars(){
3076     eval ${1}_C=\${_cc_c-\${${1}_C}}
3077     eval ${1}_E=\${_cc_e-\${${1}_E}}
3078     eval ${1}_O=\${_cc_o-\${${1}_O}}
3079
3080     if [ -n "$_depflags" ]; then
3081         eval ${1}_DEPFLAGS=\$_depflags
3082     else
3083         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3084         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3085         eval DEP${1}FLAGS=\$_flags
3086     fi
3087 }
3088
3089 probe_cc cc "$cc"
3090 cflags_filter=$_flags_filter
3091 cflags_speed=$_cflags_speed
3092 cflags_size=$_cflags_size
3093 cflags_noopt=$_cflags_noopt
3094 add_cflags $_flags $_cflags
3095 cc_ldflags=$_ldflags
3096 set_ccvars CC
3097
3098 probe_cc hostcc "$host_cc"
3099 host_cflags_filter=$_flags_filter
3100 add_host_cflags  $_flags $_cflags
3101 set_ccvars HOSTCC
3102
3103 test -n "$cc_type" && enable $cc_type ||
3104     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3105
3106 : ${as_default:=$cc}
3107 : ${dep_cc_default:=$cc}
3108 : ${ld_default:=$cc}
3109 : ${host_ld_default:=$host_cc}
3110 set_default ar as dep_cc ld host_ld
3111
3112 probe_cc as "$as"
3113 asflags_filter=$_flags_filter
3114 add_asflags $_flags $_cflags
3115 set_ccvars AS
3116
3117 probe_cc ld "$ld"
3118 ldflags_filter=$_flags_filter
3119 add_ldflags $_flags $_ldflags
3120 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3121 LD_O=${_ld_o-$LD_O}
3122 LD_LIB=${_ld_lib-$LD_LIB}
3123 LD_PATH=${_ld_path-$LD_PATH}
3124
3125 probe_cc hostld "$host_ld"
3126 host_ldflags_filter=$_flags_filter
3127 add_host_ldflags $_flags $_ldflags
3128 HOSTLD_O=${_ld_o-$HOSTLD_O}
3129
3130 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3131     probe_cc depcc "$dep_cc"
3132     CCDEP=${_DEPCMD:-$DEPCMD}
3133     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3134     DEPCCFLAGS=$_flags
3135 fi
3136
3137 if $ar 2>&1 | grep -q Microsoft; then
3138     arflags="-nologo"
3139     ar_o='-out:$@'
3140 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3141     arflags="rq"
3142     ar_o='$@'
3143 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3144     arflags='-Xany -r -c'
3145     ar_o='$@'
3146 else
3147     arflags="rc"
3148     ar_o='$@'
3149 fi
3150
3151 add_cflags $extra_cflags
3152 add_asflags $extra_cflags
3153
3154 if test -n "$sysroot"; then
3155     case "$cc_type" in
3156         gcc|llvm_gcc|clang)
3157             add_cppflags --sysroot="$sysroot"
3158             add_ldflags --sysroot="$sysroot"
3159         ;;
3160         tms470)
3161             add_cppflags -I"$sysinclude"
3162             add_ldflags  --sysroot="$sysroot"
3163         ;;
3164     esac
3165 fi
3166
3167 if test "$cpu" = host; then
3168     enabled cross_compile &&
3169         die "--cpu=host makes no sense when cross-compiling."
3170
3171     case "$cc_type" in
3172         gcc|llvm_gcc)
3173             check_native(){
3174                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3175                 sed -n "/cc1.*$1=/{
3176                             s/.*$1=\\([^ ]*\\).*/\\1/
3177                             p
3178                             q
3179                         }" $TMPE
3180             }
3181             cpu=$(check_native -march || check_native -mcpu)
3182         ;;
3183     esac
3184
3185     test "${cpu:-host}" = host &&
3186         die "--cpu=host not supported with compiler $cc"
3187 fi
3188
3189 # Deal with common $arch aliases
3190 case "$arch" in
3191     aarch64|arm64)
3192         arch="aarch64"
3193     ;;
3194     arm*)
3195         arch="arm"
3196     ;;
3197     mips*|IP*)
3198         arch="mips"
3199     ;;
3200     parisc*|hppa*)
3201         arch="parisc"
3202     ;;
3203     "Power Macintosh"|ppc*|powerpc*)
3204         arch="ppc"
3205     ;;
3206     s390|s390x)
3207         arch="s390"
3208     ;;
3209     sh4|sh)
3210         arch="sh4"
3211     ;;
3212     sun4u|sparc*)
3213         arch="sparc"
3214     ;;
3215     tilegx|tile-gx)
3216         arch="tilegx"
3217     ;;
3218     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3219         arch="x86"
3220     ;;
3221 esac
3222
3223 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3224 enable $arch
3225
3226 # Add processor-specific flags
3227 if enabled aarch64; then
3228
3229     case $cpu in
3230         armv*)
3231             cpuflags="-march=$cpu"
3232         ;;
3233         *)
3234             cpuflags="-mcpu=$cpu"
3235         ;;
3236     esac
3237
3238 elif enabled alpha; then
3239
3240     cpuflags="-mcpu=$cpu"
3241
3242 elif enabled arm; then
3243
3244     check_arm_arch() {
3245         check_cpp_condition stddef.h \
3246             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3247             $cpuflags
3248     }
3249
3250     probe_arm_arch() {
3251         if   check_arm_arch 4;        then echo armv4;
3252         elif check_arm_arch 4T;       then echo armv4t;
3253         elif check_arm_arch 5;        then echo armv5;
3254         elif check_arm_arch 5E;       then echo armv5e;
3255         elif check_arm_arch 5T;       then echo armv5t;
3256         elif check_arm_arch 5TE;      then echo armv5te;
3257         elif check_arm_arch 5TEJ;     then echo armv5te;
3258         elif check_arm_arch 6;        then echo armv6;
3259         elif check_arm_arch 6J;       then echo armv6j;
3260         elif check_arm_arch 6K;       then echo armv6k;
3261         elif check_arm_arch 6Z;       then echo armv6z;
3262         elif check_arm_arch 6ZK;      then echo armv6zk;
3263         elif check_arm_arch 6T2;      then echo armv6t2;
3264         elif check_arm_arch 7;        then echo armv7;
3265         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3266         elif check_arm_arch 7S;       then echo armv7-a;
3267         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3268         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3269         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3270         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3271         fi
3272     }
3273
3274     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3275
3276     case $cpu in
3277         armv*)
3278             cpuflags="-march=$cpu"
3279             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3280         ;;
3281         *)
3282             cpuflags="-mcpu=$cpu"
3283             case $cpu in
3284                 cortex-a*)                               subarch=armv7a  ;;
3285                 cortex-r*)                               subarch=armv7r  ;;
3286                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3287                 arm11*)                                  subarch=armv6   ;;
3288                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3289                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3290                 *)                             subarch=$(probe_arm_arch) ;;
3291             esac
3292         ;;
3293     esac
3294
3295     case "$subarch" in
3296         armv5t*)    enable fast_clz                ;;
3297         armv[6-8]*) enable fast_clz fast_unaligned ;;
3298     esac
3299
3300 elif enabled avr32; then
3301
3302     case $cpu in
3303         ap7[02]0[0-2])
3304             subarch="avr32_ap"
3305             cpuflags="-mpart=$cpu"
3306         ;;
3307         ap)
3308             subarch="avr32_ap"
3309             cpuflags="-march=$cpu"
3310         ;;
3311         uc3[ab]*)
3312             subarch="avr32_uc"
3313             cpuflags="-mcpu=$cpu"
3314         ;;
3315         uc)
3316             subarch="avr32_uc"
3317             cpuflags="-march=$cpu"
3318         ;;
3319     esac
3320
3321 elif enabled bfin; then
3322
3323     cpuflags="-mcpu=$cpu"
3324
3325 elif enabled mips; then
3326
3327     cpuflags="-march=$cpu"
3328
3329 elif enabled ppc; then
3330
3331     disable ldbrx
3332
3333     case $(tolower $cpu) in
3334         601|ppc601|powerpc601)
3335             cpuflags="-mcpu=601"
3336             disable altivec
3337         ;;
3338         603*|ppc603*|powerpc603*)
3339             cpuflags="-mcpu=603"
3340             disable altivec
3341         ;;
3342         604*|ppc604*|powerpc604*)
3343             cpuflags="-mcpu=604"
3344             disable altivec
3345         ;;
3346         g3|75*|ppc75*|powerpc75*)
3347             cpuflags="-mcpu=750"
3348             disable altivec
3349         ;;
3350         g4|745*|ppc745*|powerpc745*)
3351             cpuflags="-mcpu=7450"
3352             disable vsx
3353         ;;
3354         74*|ppc74*|powerpc74*)
3355             cpuflags="-mcpu=7400"
3356             disable vsx
3357         ;;
3358         g5|970|ppc970|powerpc970)
3359             cpuflags="-mcpu=970"
3360             disable vsx
3361         ;;
3362         power[3-6]*)
3363             cpuflags="-mcpu=$cpu"
3364             disable vsx
3365         ;;
3366         power[7-8]*)
3367             cpuflags="-mcpu=$cpu"
3368             enable ldbrx
3369         ;;
3370         cell)
3371             cpuflags="-mcpu=cell"
3372             enable ldbrx
3373             disable vsx
3374         ;;
3375         e500mc)
3376             cpuflags="-mcpu=e500mc"
3377             disable altivec
3378         ;;
3379         e500v2)
3380             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3381             disable altivec
3382             disable dcbzl
3383         ;;
3384         e500)
3385             cpuflags="-mcpu=8540 -mhard-float"
3386             disable altivec
3387             disable dcbzl
3388         ;;
3389     esac
3390
3391 elif enabled sparc; then
3392
3393     case $cpu in
3394         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3395             cpuflags="-mcpu=$cpu"
3396         ;;
3397         ultrasparc*|niagara[234])
3398             cpuflags="-mcpu=$cpu"
3399         ;;
3400     esac
3401
3402 elif enabled x86; then
3403
3404     case $cpu in
3405         i[345]86|pentium)
3406             cpuflags="-march=$cpu"
3407             disable i686
3408             disable mmx
3409         ;;
3410         # targets that do NOT support nopl and conditional mov (cmov)
3411         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3412             cpuflags="-march=$cpu"
3413             disable i686
3414         ;;
3415         # targets that do support nopl and conditional mov (cmov)
3416         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3417             cpuflags="-march=$cpu"
3418             enable i686
3419             enable fast_cmov
3420         ;;
3421         # targets that do support conditional mov but on which it's slow
3422         pentium4|pentium4m|prescott|nocona)
3423             cpuflags="-march=$cpu"
3424             enable i686
3425             disable fast_cmov
3426         ;;
3427     esac
3428
3429 fi
3430
3431 if [ "$cpu" != generic ]; then
3432     add_cflags  $cpuflags
3433     add_asflags $cpuflags
3434 fi
3435
3436 # compiler sanity check
3437 check_exec <<EOF
3438 int main(void){ return 0; }
3439 EOF
3440 if test "$?" != 0; then
3441     echo "$cc is unable to create an executable file."
3442     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3443         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3444         echo "Only do this if you know what cross compiling means."
3445     fi
3446     die "C compiler test failed."
3447 fi
3448
3449 add_cppflags -D_ISOC99_SOURCE
3450 check_cflags -std=c99
3451 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3452 #include <stdlib.h>
3453 EOF
3454 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3455 #include <stdlib.h>
3456 EOF
3457
3458 add_host_cppflags -D_ISOC99_SOURCE
3459 check_host_cflags -std=c99
3460 check_host_cflags -Wall
3461 check_host_cflags -O3
3462
3463 check_64bit(){
3464     arch32=$1
3465     arch64=$2
3466     expr=$3
3467     check_code cc "" "int test[2*($expr) - 1]" &&
3468         subarch=$arch64 || subarch=$arch32
3469 }
3470
3471 case "$arch" in
3472     aarch64|alpha|ia64)
3473         spic=$shared
3474     ;;
3475     mips)
3476         check_64bit mips mips64 '_MIPS_SIM > 1'
3477         spic=$shared
3478     ;;
3479     parisc)
3480         check_64bit parisc parisc64 'sizeof(void *) > 4'
3481         spic=$shared
3482     ;;
3483     ppc)
3484         check_64bit ppc ppc64 'sizeof(void *) > 4'
3485         spic=$shared
3486     ;;
3487     s390)
3488         check_64bit s390 s390x 'sizeof(void *) > 4'
3489         spic=$shared
3490     ;;
3491     sparc)
3492         check_64bit sparc sparc64 'sizeof(void *) > 4'
3493         spic=$shared
3494     ;;
3495     x86)
3496         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3497         if test "$subarch" = "x86_64"; then
3498             spic=$shared
3499         fi
3500     ;;
3501 esac
3502
3503 enable $subarch
3504 enabled spic && enable_weak pic
3505
3506 # OS specific
3507 case $target_os in
3508     aix)
3509         SHFLAGS=-shared
3510         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3511         enabled shared && add_ldflags -Wl,-brtl
3512         ;;
3513     android)
3514         disable symver
3515         enable section_data_rel_ro
3516         SLIB_INSTALL_NAME='$(SLIBNAME)'
3517         SLIB_INSTALL_LINKS=
3518         # soname not set on purpose
3519         SHFLAGS=-shared
3520         ;;
3521     haiku)
3522         prefix_default="/boot/common"
3523         network_extralibs="-lnetwork"
3524         host_libs=
3525         ;;
3526     sunos)
3527         SHFLAGS='-shared -Wl,-h,$$(@F)'
3528         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3529         network_extralibs="-lsocket -lnsl"
3530         # When using suncc to build, the Solaris linker will mark
3531         # an executable with each instruction set encountered by
3532         # the Solaris assembler.  As our libraries contain their own
3533         # guards for processor-specific code, instead suppress
3534         # generation of the HWCAPS ELF section on Solaris x86 only.
3535         enabled_all suncc x86 &&
3536             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3537             add_ldflags -Wl,-M,mapfile
3538         nm_default='nm -P -g'
3539         ;;
3540     netbsd)
3541         disable symver
3542         oss_indev_extralibs="-lossaudio"
3543         oss_outdev_extralibs="-lossaudio"
3544         ;;
3545     openbsd|bitrig)
3546         disable symver
3547         SHFLAGS='-shared'
3548         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3549         SLIB_INSTALL_LINKS=
3550         oss_indev_extralibs="-lossaudio"
3551         oss_outdev_extralibs="-lossaudio"
3552         ;;
3553     dragonfly)
3554         disable symver
3555         ;;
3556     freebsd)
3557         ;;
3558     bsd/os)
3559         add_extralibs -lpoll -lgnugetopt
3560         ;;
3561     darwin)
3562         enabled ppc && add_asflags -force_cpusubtype_ALL
3563         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3564         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3565         add_ldflags -Wl,-dynamic,-search_paths_first
3566         SLIBSUF=".dylib"
3567         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3568         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3569         objformat="macho"
3570         enabled x86_64 && objformat="macho64"
3571         enabled_any pic shared ||
3572             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3573         ;;
3574     mingw32*)
3575         if test $target_os = "mingw32ce"; then
3576             disable network
3577         else
3578             target_os=mingw32
3579         fi
3580         LIBTARGET=i386
3581         if enabled x86_64; then
3582             LIBTARGET="i386:x86-64"
3583         elif enabled arm; then
3584             LIBTARGET=arm-wince
3585         fi
3586         check_ldflags -Wl,--nxcompat
3587         check_ldflags -Wl,--dynamicbase
3588         shlibdir_default="$bindir_default"
3589         SLIBPREF=""
3590         SLIBSUF=".dll"
3591         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3592         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3593         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3594         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3595         SLIB_INSTALL_LINKS=
3596         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3597         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3598         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3599         objformat="win32"
3600         dlltool="${cross_prefix}dlltool"
3601         ranlib=:
3602         enable dos_paths
3603         ;;
3604     win32|win64)
3605         disable symver
3606         if enabled shared; then
3607             # Link to the import library instead of the normal static library
3608             # for shared libs.
3609             LD_LIB='%.lib'
3610             # Cannot build both shared and static libs with MSVC or icl.
3611             disable static
3612         fi
3613         shlibdir_default="$bindir_default"
3614         SLIBPREF=""
3615         SLIBSUF=".dll"
3616         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3617         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3618         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3619         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3620         SLIB_INSTALL_LINKS=
3621         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3622         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3623         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3624         objformat="win32"
3625         ranlib=:
3626         enable dos_paths
3627         ;;
3628     cygwin*)
3629         target_os=cygwin
3630         shlibdir_default="$bindir_default"
3631         SLIBPREF="cyg"
3632         SLIBSUF=".dll"
3633         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3634         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3635         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3636         SLIB_INSTALL_LINKS=
3637         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3638         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3639         objformat="win32"
3640         enable dos_paths
3641         ;;
3642     *-dos|freedos|opendos)
3643         network_extralibs="-lsocket"
3644         objformat="coff"
3645         enable dos_paths
3646         add_cppflags -U__STRICT_ANSI__
3647         ;;
3648     linux)
3649         enable dv1394
3650         enable section_data_rel_ro
3651         ;;
3652     irix*)
3653         target_os=irix
3654         ranlib="echo ignoring ranlib"
3655         ;;
3656     os/2*)
3657         ln_s="cp -f"
3658         objformat="aout"
3659         add_cppflags -D_GNU_SOURCE
3660         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3661         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3662         LIBSUF="_s.a"
3663         SLIBPREF=""
3664         SLIBSUF=".dll"
3665         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3666         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3667         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3668             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3669             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3670             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3671             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3672             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3673         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3674             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3675         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3676         enable dos_paths
3677         ;;
3678     gnu/kfreebsd)
3679         add_cppflags -D_BSD_SOURCE
3680         ;;
3681     gnu)
3682         ;;
3683     qnx)
3684         add_cppflags -D_QNX_SOURCE
3685         network_extralibs="-lsocket"
3686         ;;
3687     symbian)
3688         SLIBSUF=".dll"
3689         enable dos_paths
3690         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3691         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3692         add_ldflags -Wl,--target1-abs,--no-undefined \
3693                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3694                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3695         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3696                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3697                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3698         ;;
3699     osf1)
3700         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3701         ;;
3702     minix)
3703         ;;
3704     plan9)
3705         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3706                      -D_REENTRANT_SOURCE        \
3707                      -D_RESEARCH_SOURCE         \
3708                      -DFD_SETSIZE=96            \
3709                      -DHAVE_SOCK_OPTS
3710         add_compat strtod.o strtod=avpriv_strtod
3711         network_extralibs='-lbsd'
3712         exeobjs=compat/plan9/main.o
3713         cp_f='cp'
3714         ;;
3715     none)
3716         ;;
3717     *)
3718         die "Unknown OS '$target_os'."
3719         ;;
3720 esac
3721
3722 # determine libc flavour
3723
3724 probe_libc(){
3725     pfx=$1
3726     pfx_no_=${pfx%_}
3727     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3728     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3729         eval ${pfx}libc_type=uclibc
3730         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3731     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3732         eval ${pfx}libc_type=glibc
3733         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3734     # MinGW headers can be installed on Cygwin, so check for newlib first.
3735     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3736         eval ${pfx}libc_type=newlib
3737         add_${pfx}cppflags -U__STRICT_ANSI__
3738     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3739     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3740         eval ${pfx}libc_type=mingw64
3741         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3742         eval test \$${pfx_no_}cc_type = "gcc" &&
3743             add_${pfx}cppflags -D__printf__=__gnu_printf__
3744     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3745          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3746         eval ${pfx}libc_type=mingw32
3747         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3748             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3749             die "ERROR: MinGW32 runtime version must be >= 3.15."
3750         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3751         eval test \$${pfx_no_}cc_type = "gcc" &&
3752             add_${pfx}cppflags -D__printf__=__gnu_printf__
3753     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3754         eval ${pfx}libc_type=msvcrt
3755         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
3756             if [ "$pfx" = host_ ]; then
3757                 add_host_cppflags -Dsnprintf=_snprintf
3758             else
3759                 add_compat strtod.o strtod=avpriv_strtod
3760                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3761                                              _snprintf=avpriv_snprintf  \
3762                                              vsnprintf=avpriv_vsnprintf
3763             fi
3764         fi
3765         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3766         # 0x601 by default unless something else is set by the user.
3767         # This can easily lead to us detecting functions only present
3768         # in such new versions and producing binaries requiring windows 7.0.
3769         # Therefore explicitly set the default to XP unless the user has
3770         # set something else on the command line.
3771         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3772             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3773     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3774         eval ${pfx}libc_type=klibc
3775     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3776         eval ${pfx}libc_type=bionic
3777     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3778         eval ${pfx}libc_type=solaris
3779         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3780     else
3781         eval ${pfx}libc_type=default
3782         add_${pfx}cppflags -D_DEFAULT_SOURCE
3783     fi
3784 }
3785
3786 probe_libc
3787 test -n "$libc_type" && enable libc_$libc_type
3788 probe_libc host_
3789 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3790
3791 case $libc_type in
3792     bionic)
3793         add_compat strtod.o strtod=avpriv_strtod
3794         ;;
3795 esac
3796
3797 # hacks for compiler/libc/os combinations
3798
3799 if enabled_all tms470 libc_glibc; then
3800     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3801     add_cppflags -D__USER_LABEL_PREFIX__=
3802     add_cppflags -D__builtin_memset=memset
3803     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3804     add_cflags   -pds=48    # incompatible redefinition of macro
3805 fi
3806
3807 if enabled_all ccc libc_glibc; then
3808     add_ldflags -Wl,-z,now  # calls to libots crash without this
3809 fi
3810
3811 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
3812     add_cppflags '-I\$(SRC_PATH)/compat/float'
3813
3814 esc(){
3815     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3816 }
3817
3818 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3819
3820 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3821
3822 set_default $PATHS_LIST
3823 set_default nm
3824
3825 # we need to build at least one lib type
3826 if ! enabled_any static shared; then
3827     cat <<EOF
3828 At least one library type must be built.
3829 Specify --enable-static to build the static libraries or --enable-shared to
3830 build the shared libraries as well. To only build the shared libraries specify
3831 --disable-static in addition to --enable-shared.
3832 EOF
3833     exit 1;
3834 fi
3835
3836 die_license_disabled() {
3837     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3838 }
3839
3840 die_license_disabled gpl libcdio
3841 die_license_disabled gpl libx264
3842 die_license_disabled gpl libx265
3843 die_license_disabled gpl libxavs
3844 die_license_disabled gpl libxvid
3845 die_license_disabled gpl x11grab
3846
3847 die_license_disabled nonfree libfaac
3848 die_license_disabled nonfree libfdk_aac
3849 die_license_disabled nonfree nvenc
3850 die_license_disabled nonfree openssl
3851
3852 die_license_disabled version3 libopencore_amrnb
3853 die_license_disabled version3 libopencore_amrwb
3854 die_license_disabled version3 libvo_aacenc
3855 die_license_disabled version3 libvo_amrwbenc
3856
3857 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3858
3859 disabled optimizations || check_cflags -fomit-frame-pointer
3860
3861 enable_weak_pic() {
3862     disabled pic && return
3863     enable pic
3864     add_cppflags -DPIC
3865     case "$target_os" in
3866     mingw*|cygwin*)
3867         ;;
3868     *)
3869         add_cflags -fPIC
3870         ;;
3871     esac
3872     add_asflags  -fPIC
3873 }
3874
3875 enabled pic && enable_weak_pic
3876
3877 check_cc <<EOF || die "Symbol mangling check failed."
3878 int ff_extern;
3879 EOF
3880 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3881 extern_prefix=${sym%%ff_extern*}
3882
3883 check_cc <<EOF && enable_weak inline_asm
3884 void foo(void) { __asm__ volatile ("" ::); }
3885 EOF
3886
3887 _restrict=
3888 for restrict_keyword in restrict __restrict__ __restrict; do
3889     check_cc <<EOF && _restrict=$restrict_keyword && break
3890 void foo(char * $restrict_keyword p);
3891 EOF
3892 done
3893
3894 check_cc <<EOF && enable pragma_deprecated
3895 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3896 EOF
3897
3898 check_cc <<EOF && enable attribute_packed
3899 struct { int x; } __attribute__((packed)) x;
3900 EOF
3901
3902 check_cc <<EOF && enable attribute_may_alias
3903 union { int x; } __attribute__((may_alias)) x;
3904 EOF
3905
3906 check_cc <<EOF || die "endian test failed"
3907 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3908 EOF
3909 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3910
3911 check_gas() {
3912     log "check_gas using '$as' as AS"
3913     # :vararg is used on aarch64, arm and ppc altivec
3914     check_as <<EOF || return 1
3915 .macro m n, y:vararg=0
3916 \n: .int \y
3917 .endm
3918 m x
3919 EOF
3920     # .altmacro is only used in arm asm
3921     ! enabled arm || check_as <<EOF || return 1
3922 .altmacro
3923 EOF
3924     enable gnu_as
3925     return 0
3926 }
3927
3928 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
3929     nogas=:
3930     enabled_any arm aarch64 && nogas=die
3931     enabled_all ppc altivec && nogas=warn
3932     as_noop=-v
3933
3934     case $as_type in
3935         arm*) gaspp_as_type=armasm; as_noop=-h ;;
3936         gcc)  gaspp_as_type=gas ;;
3937         *)    gaspp_as_type=$as_type ;;
3938     esac
3939
3940     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
3941
3942     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
3943         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
3944
3945     if ! check_gas ; then
3946         as=${gas:=$as}
3947         check_gas || \
3948             $nogas "GNU assembler not found, install/update gas-preprocessor"
3949     fi
3950
3951     check_as <<EOF && enable as_func
3952 .func test
3953 .endfunc
3954 EOF
3955 fi
3956
3957 check_inline_asm inline_asm_labels '"1:\n"'
3958
3959 if enabled aarch64; then
3960     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
3961     # internal assembler in clang 3.3 does not support this instruction
3962     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
3963     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
3964
3965     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
3966
3967 elif enabled alpha; then
3968
3969     check_cflags -mieee
3970
3971 elif enabled arm; then
3972
3973     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3974     enabled thumb && check_cflags -mthumb || check_cflags -marm
3975
3976     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3977         enable vfp_args
3978     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3979         case "${cross_prefix:-$cc}" in
3980             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3981             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3982 __asm__ (".eabi_attribute 28, 1");
3983 int main(void) { return 0; }
3984 EOF
3985         esac
3986         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3987     fi
3988
3989     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3990     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3991     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3992     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3993     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3994     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3995
3996     [ $target_os = linux ] || [ $target_os = android ] ||
3997         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3998             $ARCH_EXT_LIST_ARM
3999
4000     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4001
4002     check_as <<EOF && enable as_dn_directive
4003 ra .dn d0.i16
4004 .unreq ra
4005 EOF
4006
4007     # llvm's integrated assembler supports .object_arch from llvm 3.5
4008     [ "$objformat" = elf ] && check_as <<EOF && enable as_object_arch
4009 .object_arch armv4
4010 EOF
4011
4012     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4013
4014 elif enabled mips; then
4015
4016     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4017
4018 elif enabled parisc; then
4019
4020     if enabled gcc; then
4021         case $($cc -dumpversion) in
4022             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4023         esac
4024     fi
4025
4026 elif enabled ppc; then
4027
4028     enable local_aligned_8 local_aligned_16
4029
4030     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4031     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4032     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4033     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4034
4035     # AltiVec flags: The FSF version of GCC differs from the Apple version
4036     if enabled altivec; then
4037         check_cflags -maltivec -mabi=altivec &&
4038         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4039         check_cflags -faltivec
4040
4041         # check if our compiler supports Motorola AltiVec C API
4042         check_cc <<EOF || disable altivec
4043 $inc_altivec_h
4044 int main(void) {
4045     vector signed int v1 = (vector signed int) { 0 };
4046     vector signed int v2 = (vector signed int) { 1 };
4047     v1 = vec_add(v1, v2);
4048     return 0;
4049 }
4050 EOF
4051
4052         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4053     fi
4054
4055     if enabled vsx; then
4056         check_cflags -mvsx &&
4057         check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
4058     fi
4059
4060     if enabled power8; then
4061         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4062     fi
4063
4064 elif enabled x86; then
4065
4066     check_builtin rdtsc    intrin.h   "__rdtsc()"
4067     check_builtin mm_empty mmintrin.h "_mm_empty()"
4068
4069     enable local_aligned_8 local_aligned_16
4070
4071     # check whether EBP is available on x86
4072     # As 'i' is stored on the stack, this program will crash
4073     # if the base pointer is used to access it because the
4074     # base pointer is cleared in the inline assembly code.
4075     check_exec_crash <<EOF && enable ebp_available
4076 volatile int i=0;
4077 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4078 return i;
4079 EOF
4080
4081     # check whether EBX is available on x86
4082     check_inline_asm ebx_available '""::"b"(0)' &&
4083         check_inline_asm ebx_available '"":::"%ebx"'
4084
4085     # check whether xmm clobbers are supported
4086     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4087
4088     # check whether binutils is new enough to compile SSSE3/MMXEXT
4089     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4090     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4091
4092     if ! disabled_any asm mmx yasm; then
4093         if check_cmd $yasmexe --version; then
4094             enabled x86_64 && yasm_extra="-m amd64"
4095             yasm_debug="-g dwarf2"
4096         elif check_cmd nasm -v; then
4097             yasmexe=nasm
4098             yasm_debug="-g -F dwarf"
4099             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4100         fi
4101
4102         YASMFLAGS="-f $objformat $yasm_extra"
4103         enabled pic               && append YASMFLAGS "-DPIC"
4104         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4105         case "$objformat" in
4106             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4107         esac
4108
4109         check_yasm "movbe ecx, [5]" && enable yasm ||
4110             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4111         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4112         check_yasm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4113         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4114         check_yasm "CPU amdnop" || disable cpunop
4115     fi
4116
4117     case "$cpu" in
4118         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4119             disable fast_clz
4120         ;;
4121     esac
4122
4123 fi
4124
4125 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4126
4127 check_ldflags -Wl,--as-needed
4128
4129 if check_func dlopen; then
4130     ldl=
4131 elif check_func dlopen -ldl; then
4132     ldl=-ldl
4133 fi
4134
4135 if ! disabled network; then
4136     check_func getaddrinfo $network_extralibs
4137     check_func getservbyport $network_extralibs
4138     check_func inet_aton $network_extralibs
4139
4140     check_type netdb.h "struct addrinfo"
4141     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4142     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4143     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4144     check_type poll.h "struct pollfd"
4145     check_type netinet/sctp.h "struct sctp_event_subscribe"
4146     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4147     check_type netinet/in.h "struct sockaddr_in6"
4148     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4149     check_type "sys/types.h sys/socket.h" socklen_t
4150
4151     # Prefer arpa/inet.h over winsock2
4152     if check_header arpa/inet.h ; then
4153         check_func closesocket
4154     elif check_header winsock2.h ; then
4155         check_func_headers winsock2.h closesocket -lws2 &&
4156             network_extralibs="-lws2" ||
4157         { check_func_headers winsock2.h closesocket -lws2_32 &&
4158             network_extralibs="-lws2_32"; } || disable winsock2_h network
4159         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4160
4161         check_type ws2tcpip.h socklen_t
4162         check_type ws2tcpip.h "struct addrinfo"
4163         check_type ws2tcpip.h "struct group_source_req"
4164         check_type ws2tcpip.h "struct ip_mreq_source"
4165         check_type ws2tcpip.h "struct ipv6_mreq"
4166         check_type winsock2.h "struct pollfd"
4167         check_struct winsock2.h "struct sockaddr" sa_len
4168         check_type ws2tcpip.h "struct sockaddr_in6"
4169         check_type ws2tcpip.h "struct sockaddr_storage"
4170     else
4171         disable network
4172     fi
4173 fi
4174
4175 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4176 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4177 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4178 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4179
4180 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4181 check_func  ${malloc_prefix}memalign            && enable memalign
4182 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4183
4184 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4185     check_func_headers time.h clock_gettime || { check_func_headers time.h clock_gettime -lrt && add_extralibs -lrt && LIBRT="-lrt"; }
4186
4187 check_func  fcntl
4188 check_func  fork
4189 check_func  gethrtime
4190 check_func  getopt
4191 check_func  getrusage
4192 check_func  gettimeofday
4193 check_func  gmtime_r
4194 check_func  isatty
4195 check_func  localtime_r
4196 check_func  mach_absolute_time
4197 check_func  mkstemp
4198 check_func  mmap
4199 check_func  mprotect
4200 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4201 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4202 check_func  sched_getaffinity
4203 check_func  setrlimit
4204 check_func  strerror_r
4205 check_func  sysconf
4206 check_func  sysctl
4207 check_func  usleep
4208
4209 check_func_headers io.h setmode
4210 check_func_headers stdlib.h getenv
4211
4212 check_func_headers windows.h CoTaskMemFree -lole32
4213 check_func_headers windows.h GetProcessAffinityMask
4214 check_func_headers windows.h GetProcessTimes
4215 check_func_headers windows.h GetSystemTimeAsFileTime
4216 check_func_headers windows.h LoadLibrary
4217 check_func_headers windows.h MapViewOfFile
4218 check_func_headers windows.h SetConsoleTextAttribute
4219 check_func_headers windows.h Sleep
4220 check_func_headers windows.h VirtualAlloc
4221 check_struct windows.h "CONDITION_VARIABLE" Ptr
4222
4223 check_header direct.h
4224 check_header dlfcn.h
4225 check_header d3d11.h
4226 check_header dxva.h
4227 check_header dxva2api.h
4228 check_header io.h
4229 check_header mach/mach_time.h
4230 check_header malloc.h
4231 check_header poll.h
4232 check_header sys/mman.h
4233 check_header sys/param.h
4234 check_header sys/resource.h
4235 check_header sys/select.h
4236 check_header sys/time.h
4237 check_header sys/un.h
4238 check_header unistd.h
4239 check_header valgrind/valgrind.h
4240 check_header vdpau/vdpau.h
4241 check_header vdpau/vdpau_x11.h
4242 check_header VideoDecodeAcceleration/VDADecoder.h
4243 check_header windows.h
4244 check_header X11/extensions/XvMClib.h
4245
4246 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4247 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4248 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4249
4250 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4251
4252 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC"
4253 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4254 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0600
4255
4256 if ! disabled w32threads && ! enabled pthreads; then
4257     check_func_headers "windows.h process.h" _beginthreadex &&
4258         enable w32threads || disable w32threads
4259 fi
4260
4261 # check for some common methods of building with pthread support
4262 # do this before the optional library checks as some of them require pthreads
4263 if ! disabled pthreads && ! enabled w32threads; then
4264     enable pthreads
4265     if check_func pthread_join -pthread; then
4266         add_cflags -pthread
4267         add_extralibs -pthread
4268     elif check_func pthread_join -pthreads; then
4269         add_cflags -pthreads
4270         add_extralibs -pthreads
4271     elif check_func pthread_join -lpthreadGC2; then
4272         add_extralibs -lpthreadGC2
4273     elif check_lib pthread.h pthread_join -lpthread; then
4274         :
4275     elif ! check_func pthread_join; then
4276         disable pthreads
4277     fi
4278 fi
4279
4280 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4281 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4282
4283 check_lib math.h sin -lm && LIBM="-lm"
4284 enabled vaapi && require vaapi va/va.h vaInitialize -lva
4285
4286 atan2f_args=2
4287 ldexpf_args=2
4288 powf_args=2
4289
4290 for func in $MATH_FUNCS; do
4291     eval check_mathfunc $func \${${func}_args:-1}
4292 done
4293
4294 # these are off by default, so fail if requested and not available
4295 enabled avisynth          && { check_lib2 "avisynth/avisynth_c.h windows.h" LoadLibrary ||
4296                                check_lib2 "avxsynth/avxsynth_c.h dlfcn.h" dlopen -ldl   ||
4297                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
4298 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4299 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4300 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4301 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4302 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4303 enabled libfdk_aac        && require_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4304 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4305 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4306 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4307                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4308                                done || die "ERROR: libgsm not found"; }
4309 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4310 enabled libmfx            && require_pkg_config libmfx "mfx/mfxvideo.h" MFXInit
4311 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4312 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4313 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4314 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
4315 enabled libopenh264       && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
4316 enabled libopenjpeg       && { { check_header openjpeg.h && check_lib2 openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC; } ||
4317                                { require_pkg_config libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; } }
4318 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4319 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4320 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4321 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4322 enabled libsnappy         && require snappy snappy-c.h snappy_compress -lsnappy
4323 enabled libspeex          && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
4324 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4325 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4326 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4327 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4328 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4329 enabled libvpx            && require_pkg_config "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version && {
4330     enabled libvpx_vp8_decoder && {
4331         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
4332             disable libvpx_vp8_decoder;
4333     }
4334     enabled libvpx_vp8_encoder && {
4335         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
4336             disable libvpx_vp8_encoder;
4337     }
4338     enabled libvpx_vp9_decoder && {
4339         check_pkg_config vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
4340             disable libvpx_vp9_decoder;
4341     }
4342     enabled libvpx_vp9_encoder && {
4343         check_pkg_config vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
4344             disable libvpx_vp9_encoder;
4345     }
4346     if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
4347         die "libvpx enabled but no supported decoders found"
4348     fi
4349 }
4350 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4351 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
4352 enabled libx264           && require_pkg_config x264 "stdint.h x264.h" x264_encoder_encode &&
4353                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4354                                die "ERROR: libx264 version must be >= 0.118."; }
4355 enabled libx265           && require_pkg_config x265 x265.h x265_api_get &&
4356                              { check_cpp_condition x265.h "X265_BUILD >= 57" ||
4357                                die "ERROR: libx265 version must be >= 57."; }
4358 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4359 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4360 enabled mmal              && { check_lib interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4361                                 { ! enabled cross_compile && {
4362                                     add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline ;
4363                                     add_extralibs -L/opt/vc/lib/ -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ;
4364                                     check_lib interface/mmal/mmal.h mmal_port_connect ; }
4365                                 check_lib interface/mmal/mmal.h mmal_port_connect ; } ||
4366                                die "ERROR: mmal not found"; }
4367 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4368                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4369                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4370                                die "ERROR: openssl not found"; }
4371
4372 if enabled gnutls; then
4373     { check_lib2 gmp.h mpz_export -lgmp && enable gmp; } ||
4374     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4375 fi
4376
4377 # libdc1394 check
4378 if enabled libdc1394; then
4379     { require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new &&
4380         enable libdc1394_2; } ||
4381     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4382         enable libdc1394_1; } ||
4383     die "ERROR: No version of libdc1394 found "
4384 fi
4385
4386 if enabled nvenc; then
4387     check_header cuda.h || die "ERROR: cuda.h not found.";
4388     check_header nvEncodeAPI.h || die "ERROR: nvEncodeAPI.h not found.";
4389     check_cpp_condition nvEncodeAPI.h "NVENCAPI_MAJOR_VERSION >= 5" ||
4390         die "ERROR: NVENC API version 4 or older is not supported";
4391 fi
4392
4393 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4394     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4395     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4396     enable sdl
4397 fi
4398
4399 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
4400 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
4401
4402 check_header linux/fb.h
4403 check_header linux/videodev2.h
4404 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
4405
4406 check_header sys/videoio.h
4407
4408 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4409 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4410 # w32api 3.12 had it defined wrong
4411 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4412
4413 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4414 { check_header dev/bktr/ioctl_meteor.h &&
4415   check_header dev/bktr/ioctl_bt848.h; } ||
4416 { check_header machine/ioctl_meteor.h &&
4417   check_header machine/ioctl_bt848.h; } ||
4418 { check_header dev/video/meteor/ioctl_meteor.h &&
4419   check_header dev/video/bktr/ioctl_bt848.h; } ||
4420 check_header dev/ic/bt8xx.h
4421
4422 check_header sndio.h
4423 check_header sys/soundcard.h
4424 check_header soundcard.h
4425
4426 enabled_any alsa_indev alsa_outdev &&
4427     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4428
4429 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4430     check_func jack_port_get_latency_range -ljack
4431
4432 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4433
4434 if enabled libcdio; then
4435     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4436     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4437     die "ERROR: No usable libcdio/cdparanoia found"
4438 fi
4439
4440 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4441
4442 if enabled libxcb || enabled x11grab && ! disabled libxcb; then
4443     check_pkg_config xcb-shape xcb/shape.h xcb_shape_rectangles || {
4444         enabled libxcb && die "ERROR: libxcb not found";
4445     } && disable x11grab && enable libxcb
4446
4447     disabled libxcb_shm ||
4448         check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || {
4449             enabled libxcb_shm && die "ERROR: libxcb_shm not found";
4450         } && check_header sys/shm.h && enable libxcb_shm
4451
4452     disabled libxcb_xfixes ||
4453         check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || {
4454             enabled libxcb_xfixes && die "ERROR: libxcb_xfixes not found";
4455         } && enable libxcb_xfixes
4456
4457     add_cflags "$xcb_event_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
4458     add_extralibs "$xcb_event_libs $xcb_shm_libs $xcb_xfixes_libs"
4459 fi
4460
4461 if enabled x11grab; then
4462     enabled xlib || die "ERROR: Xlib not found"
4463     require Xext X11/extensions/XShm.h XShmCreateImage -lXext
4464     require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4465 fi
4466
4467 enabled vaapi && enabled xlib &&
4468     check_lib2 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 &&
4469     enable vaapi_x11
4470
4471 enabled vdpau &&
4472     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4473     disable vdpau
4474
4475 enabled vdpau && enabled xlib &&
4476     check_func_headers "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4477     prepend avconv_libs $($ldflags_filter "-lvdpau") &&
4478     enable vdpau_x11
4479
4480 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4481
4482 # add some useful compiler flags if supported
4483 check_cflags -Wdeclaration-after-statement
4484 check_cflags -Wall
4485 check_cflags -Wdisabled-optimization
4486 check_cflags -Wpointer-arith
4487 check_cflags -Wredundant-decls
4488 check_cflags -Wcast-qual
4489 check_cflags -Wwrite-strings
4490 check_cflags -Wtype-limits
4491 check_cflags -Wundef
4492 check_cflags -Wmissing-prototypes
4493 check_cflags -Wstrict-prototypes
4494 enabled extra_warnings && check_cflags -Winline
4495
4496 check_disable_warning(){
4497     warning_flag=-W${1#-Wno-}
4498     test_cflags $warning_flag && add_cflags $1
4499 }
4500
4501 check_disable_warning -Wno-parentheses
4502 check_disable_warning -Wno-switch
4503 check_disable_warning -Wno-format-zero-length
4504 check_disable_warning -Wno-pointer-sign
4505
4506 # add some linker flags
4507 check_ldflags -Wl,--warn-common
4508 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4509 enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
4510 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4511
4512 # add some strip flags
4513 # -wN '..@*' is more selective than -x, but not available everywhere.
4514 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4515
4516 enabled neon_clobber_test &&
4517     check_ldflags -Wl,--wrap,avcodec_open2              \
4518                   -Wl,--wrap,avcodec_decode_audio4      \
4519                   -Wl,--wrap,avcodec_decode_video2      \
4520                   -Wl,--wrap,avcodec_decode_subtitle2   \
4521                   -Wl,--wrap,avcodec_encode_audio2      \
4522                   -Wl,--wrap,avcodec_encode_video2      \
4523                   -Wl,--wrap,avcodec_encode_subtitle    \
4524                   -Wl,--wrap,avresample_convert ||
4525     disable neon_clobber_test
4526
4527 enabled xmm_clobber_test &&
4528     check_ldflags -Wl,--wrap,avcodec_open2              \
4529                   -Wl,--wrap,avcodec_decode_audio4      \
4530                   -Wl,--wrap,avcodec_decode_video2      \
4531                   -Wl,--wrap,avcodec_decode_subtitle2   \
4532                   -Wl,--wrap,avcodec_encode_audio2      \
4533                   -Wl,--wrap,avcodec_encode_video2      \
4534                   -Wl,--wrap,avcodec_encode_subtitle    \
4535                   -Wl,--wrap,avresample_convert         \
4536                   -Wl,--wrap,sws_scale ||
4537     disable xmm_clobber_test
4538
4539 echo "X{};" > $TMPV
4540 if test_ldflags -Wl,--version-script,$TMPV; then
4541     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4542     check_cc <<EOF && enable symver_asm_label
4543 void ff_foo(void) __asm__ ("av_foo@VERSION");
4544 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4545 EOF
4546     check_cc <<EOF && enable symver_gnu_asm
4547 __asm__(".symver ff_foo,av_foo@VERSION");
4548 void ff_foo(void) {}
4549 EOF
4550 fi
4551
4552 if [ -z "$optflags" ]; then
4553     if enabled small; then
4554         optflags=$cflags_size
4555     elif enabled optimizations; then
4556         optflags=$cflags_speed
4557     else
4558         optflags=$cflags_noopt
4559     fi
4560 fi
4561
4562 check_optflags(){
4563     check_cflags "$@"
4564     enabled lto && check_ldflags "$@"
4565 }
4566
4567
4568 if enabled lto; then
4569     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4570     check_cflags  -flto
4571     check_ldflags -flto $cpuflags
4572 fi
4573
4574 check_optflags $optflags
4575 check_optflags -fno-math-errno
4576 check_optflags -fno-signed-zeros
4577
4578 if enabled icc; then
4579     # Just warnings, no remarks
4580     check_cflags -w1
4581     # -wd: Disable following warnings
4582     # 144, 167, 556: -Wno-pointer-sign
4583     # 1292: attribute "foo" ignored
4584     # 1419: external declaration in primary source file
4585     # 10006: ignoring unknown option -fno-signed-zeros
4586     # 10148: ignoring unknown option -Wno-parentheses
4587     # 10156: ignoring option '-W'; no argument required
4588     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4589     # 11030: Warning unknown option --as-needed
4590     # 10156: ignoring option '-export'; no argument required
4591     check_ldflags -wd10156,11030
4592     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4593     enable ebp_available
4594     if enabled x86_32; then
4595         icc_version=$($cc -dumpversion)
4596         test ${icc_version%%.*} -ge 11 &&
4597             check_cflags -falign-stack=maintain-16-byte ||
4598             disable aligned_stack
4599     fi
4600 elif enabled ccc; then
4601     # disable some annoying warnings
4602     add_cflags -msg_disable bitnotint
4603     add_cflags -msg_disable mixfuncvoid
4604     add_cflags -msg_disable nonstandcast
4605     add_cflags -msg_disable unsupieee
4606 elif enabled gcc; then
4607     check_optflags -fno-tree-vectorize
4608     check_cflags -Werror=implicit-function-declaration
4609     check_cflags -Werror=missing-prototypes
4610     check_cflags -Werror=return-type
4611     check_cflags -Werror=declaration-after-statement
4612     check_cflags -Werror=vla
4613     check_cflags -Werror=format-security
4614     check_cflags -fdiagnostics-color=auto
4615     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4616 elif enabled llvm_gcc; then
4617     check_cflags -mllvm -stack-alignment=16
4618 elif enabled clang; then
4619     check_cflags -mllvm -stack-alignment=16
4620     check_cflags -Qunused-arguments
4621     check_cflags -Werror=implicit-function-declaration
4622     check_cflags -Werror=missing-prototypes
4623     check_cflags -Werror=return-type
4624 elif enabled cparser; then
4625     add_cflags -Wno-missing-variable-declarations
4626     add_cflags -Wno-empty-statement
4627 elif enabled armcc; then
4628     add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
4629     add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
4630     # 2523: use of inline assembly is deprecated
4631     add_cflags -W${armcc_opt},--diag_suppress=2523
4632     add_cflags -W${armcc_opt},--diag_suppress=1207
4633     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4634     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4635     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4636     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4637 elif enabled tms470; then
4638     add_cflags -pds=824 -pds=837
4639     disable inline_asm
4640 elif enabled pathscale; then
4641     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4642 elif enabled_any msvc icl; then
4643     enabled x86_32 && disable aligned_stack
4644     enabled_all x86_32 debug && add_cflags -Oy-
4645     enabled debug && add_ldflags -debug
4646     enable pragma_deprecated
4647     if enabled icl; then
4648         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4649         # (correctly) on icl 13.x.
4650         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4651             add_cflags -Qansi-alias
4652         # icl will pass the inline asm tests but inline asm is currently
4653         # not supported (build will fail)
4654         disable inline_asm
4655     fi
4656     # msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
4657     check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
4658 fi
4659
4660 case $as_type in
4661     clang)
4662         add_asflags -Qunused-arguments
4663     ;;
4664 esac
4665
4666 case $ld_type in
4667     clang)
4668         check_ldflags -Qunused-arguments
4669     ;;
4670 esac
4671
4672 case $target_os in
4673     osf1)
4674         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4675     ;;
4676     plan9)
4677         add_cppflags -Dmain=plan9_main
4678     ;;
4679 esac
4680
4681 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4682
4683 check_deps $CONFIG_LIST       \
4684            $CONFIG_EXTRA      \
4685            $HAVE_LIST         \
4686            $ALL_COMPONENTS    \
4687
4688 enabled_all dxva2 CoTaskMemFree &&
4689     prepend avconv_libs $($ldflags_filter "-lole32") &&
4690     enable dxva2_lib
4691
4692 ! enabled_any memalign posix_memalign aligned_malloc &&
4693     enabled simd_align_16 && enable memalign_hack
4694
4695 map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
4696
4697 for thread in $THREADS_LIST; do
4698     if enabled $thread; then
4699         test -n "$thread_type" &&
4700             die "ERROR: Only one thread type must be selected." ||
4701             thread_type="$thread"
4702     fi
4703 done
4704
4705 enabled zlib && add_cppflags -DZLIB_CONST
4706
4707 # conditional library dependencies, in linking order
4708 enabled movie_filter    && prepend avfilter_deps "avformat avcodec"
4709 enabled resample_filter && prepend avfilter_deps "avresample"
4710 enabled scale_filter    && prepend avfilter_deps "swscale"
4711
4712 enabled opus_decoder    && prepend avcodec_deps "avresample"
4713
4714 expand_deps(){
4715     lib_deps=${1}_deps
4716     eval "deps=\$$lib_deps"
4717     append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
4718     unique $lib_deps
4719 }
4720
4721 map 'expand_deps $v' $LIBRARY_LIST
4722
4723 echo "install prefix            $prefix"
4724 echo "source path               $source_path"
4725 echo "C compiler                $cc"
4726 echo "C library                 $libc_type"
4727 if test "$host_cc" != "$cc"; then
4728     echo "host C compiler           $host_cc"
4729     echo "host C library            $host_libc_type"
4730 fi
4731 echo "ARCH                      $arch ($cpu)"
4732 if test "$build_suffix" != ""; then
4733     echo "build suffix              $build_suffix"
4734 fi
4735 if test "$extra_version" != ""; then
4736     echo "version string suffix     $extra_version"
4737 fi
4738 echo "big-endian                ${bigendian-no}"
4739 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4740 if enabled x86; then
4741     echo "${yasmexe}                      ${yasm-no}"
4742     echo "MMX enabled               ${mmx-no}"
4743     echo "MMXEXT enabled            ${mmxext-no}"
4744     echo "3DNow! enabled            ${amd3dnow-no}"
4745     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4746     echo "SSE enabled               ${sse-no}"
4747     echo "SSSE3 enabled             ${ssse3-no}"
4748     echo "AVX enabled               ${avx-no}"
4749     echo "XOP enabled               ${xop-no}"
4750     echo "FMA3 enabled              ${fma3-no}"
4751     echo "FMA4 enabled              ${fma4-no}"
4752     echo "i686 features enabled     ${i686-no}"
4753     echo "CMOV is fast              ${fast_cmov-no}"
4754     echo "EBX available             ${ebx_available-no}"
4755     echo "EBP available             ${ebp_available-no}"
4756 fi
4757 if enabled aarch64; then
4758     echo "NEON enabled              ${neon-no}"
4759     echo "VFP enabled               ${vfp-no}"
4760 fi
4761 if enabled arm; then
4762     echo "ARMv5TE enabled           ${armv5te-no}"
4763     echo "ARMv6 enabled             ${armv6-no}"
4764     echo "ARMv6T2 enabled           ${armv6t2-no}"
4765     echo "VFP enabled               ${vfp-no}"
4766     echo "NEON enabled              ${neon-no}"
4767 fi
4768 if enabled ppc; then
4769     echo "AltiVec enabled           ${altivec-no}"
4770     echo "VSX enabled               ${vsx-no}"
4771     echo "POWER8 enabled            ${power8-no}"
4772     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4773     echo "dcbzl available           ${dcbzl-no}"
4774 fi
4775 echo "debug symbols             ${debug-no}"
4776 echo "optimize for size         ${small-no}"
4777 echo "optimizations             ${optimizations-no}"
4778 echo "static                    ${static-no}"
4779 echo "shared                    ${shared-no}"
4780 echo "new filter support        ${avfilter-no}"
4781 echo "network support           ${network-no}"
4782 echo "threading support         ${thread_type-no}"
4783 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4784 echo "SDL support               ${sdl-no}"
4785 test -n "$random_seed" &&
4786     echo "random seed               ${random_seed}"
4787 echo
4788
4789 echo "External libraries:"
4790 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4791 echo
4792
4793 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4794     echo "Enabled ${type}s:"