lavc: Add h264_metadata bitstream filter
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [avbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --prefix=PREFIX          install in PREFIX [$prefix_default]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --enable-rpath           use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93   --enable-gpl             allow use of GPL code, the resulting libs
94                            and binaries will be under GPL [no]
95   --enable-version3        upgrade (L)GPL to version 3 [no]
96   --enable-nonfree         allow use of nonfree code, the resulting libs
97                            and binaries will be unredistributable [no]
98
99 Configuration options:
100   --disable-static         do not build static libraries [no]
101   --enable-shared          build shared libraries [no]
102   --enable-small           optimize for size instead of speed
103   --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104   --enable-gray            enable full grayscale support (slower color)
105   --disable-swscale-alpha  disable alpha channel support in swscale
106   --disable-all            disable building components, libraries and programs
107
108 Program options:
109   --disable-programs       do not build command line programs
110   --disable-avconv         disable avconv build
111   --disable-avplay         disable avplay build
112   --disable-avprobe        disable avprobe build
113   --disable-avserver       deprecated, does nothing
114
115 Component options:
116   --disable-doc            do not build documentation
117   --disable-pod2man        do not build manual pages
118   --disable-texi2html      do not build HTML documentation
119   --disable-avdevice       disable libavdevice build
120   --disable-avcodec        disable libavcodec build
121   --disable-avformat       disable libavformat build
122   --disable-avutil         disable libavutil build
123   --disable-swscale        disable libswscale build
124   --disable-avfilter       disable video filter support [no]
125   --disable-avresample     disable libavresample build [no]
126   --disable-pthreads       disable pthreads [auto]
127   --disable-w32threads     disable Win32 threads [auto]
128   --disable-network        disable network support [no]
129   --disable-dct            disable DCT code
130   --disable-error-resilience disable error resilience code
131   --disable-lsp            disable LSP code
132   --disable-lzo            disable LZO decoder code
133   --disable-mdct           disable MDCT code
134   --disable-rdft           disable RDFT code
135   --disable-fft            disable FFT code
136   --disable-faan           disable floating point AAN (I)DCT code
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176
177   Using any of the following switches will allow Libav to link to the
178   corresponding external library. All the components depending on that library
179   will become enabled, if all their other dependencies are met and they are not
180   explicitly disabled. E.g. --enable-libwavpack will enable linking to
181   libwavpack and allow the libwavpack encoder to be built, unless it is
182   specifically disabled with --disable-encoder=libwavpack.
183
184   Note that only the system libraries are auto-detected. All the other external
185   libraries must be explicitly enabled.
186
187   Also note that the following help text describes the purpose of the libraries
188   themselves, not all their features will necessarily be usable by Libav.
189
190   --enable-avisynth          video frameserver
191   --enable-avxsynth          Linux version of AviSynth
192   --enable-bzlib             bzip2 compression [autodetect]
193   --enable-frei0r            video filtering plugins
194   --enable-gnutls            crypto
195   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
196   --enable-libcdio           audio CD input
197   --enable-libdc1394         IEEE 1394/Firewire camera input
198   --enable-libdcadec         DCA audio decoding
199   --enable-libfaac           AAC audio encoding
200   --enable-libfdk-aac        AAC audio encoding/decoding
201   --enable-libfontconfig     font configuration and management
202   --enable-libfreetype       font rendering
203   --enable-libgsm            GSM audio encoding/decoding
204   --enable-libhdcd           HDCD decoding filter
205   --enable-libilbc           ILBC audio encoding/decoding
206   --enable-libjack           JACK audio sound server
207   --enable-libkvazaar        HEVC video encoding
208   --enable-libmp3lame        MP3 audio encoding
209   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210   --enable-libopencore-amrwb AMR-WB audio decoding
211   --enable-libopencv         computer vision
212   --enable-libopenh264       H.264 video encoding/decoding
213   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
214   --enable-libopus           Opus audio encoding/decoding
215   --enable-libpulse          Pulseaudio sound server
216   --enable-librtmp           RTMP streaming
217   --enable-libschroedinger   Dirac video encoding/decoding
218   --enable-libsnappy         snappy compression
219   --enable-libspeex          Speex audio encoding/decoding
220   --enable-libtheora         Theora video encoding/decoding
221   --enable-libtwolame        MP2 audio encoding
222   --enable-libvo-aacenc      AAC audio encoding
223   --enable-libvo-amrwbenc    AMR-WB audio encoding
224   --enable-libvorbis         Vorbis audio encoding/decoding
225   --enable-libvpx            VP* video encoding/decoding
226   --enable-libwavpack        Wavpack audio encoding/decoding
227   --enable-libwebp           WebP image encoding/decoding
228   --enable-libx264           H.264 video encoding
229   --enable-libx265           HEVC video encoding
230   --enable-libxavs           Chinese AVS video encoding
231   --enable-libxcb            X window system protocol communication
232   --enable-libxcb-shm        X11 shm communication [auto]
233   --enable-libxcb-xfixes     X11 mouse rendering [auto]
234   --enable-libxvid           MPEG-4 ASP video encoding
235   --enable-openssl           crypto
236   --enable-zlib              compression [autodetect]
237
238   The following libraries provide various hardware acceleration features:
239   --enable-cuda    Nvidia CUDA (dynamically linked)
240   --enable-cuvid   Nvidia CUVID video decode acceleration
241   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
243   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
244   --enable-libnpp  Nvidia CUDA processing
245   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246   --enable-nvenc   Nvidia video encoding
247   --enable-omx     OpenMAX IL
248   --enable-omx-rpi OpenMAX IL for Raspberry Pi
249   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
250   --enable-vda     Apple Video Decode Acceleration [auto]
251   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254   --arch=ARCH              select architecture [$arch]
255   --cpu=CPU                select the minimum required CPU (affects
256                            instruction selection, may crash on older CPUs)
257   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
258   --enable-cross-compile   assume a cross-compiler is used
259   --sysroot=PATH           root of cross-build tree
260   --sysinclude=PATH        location of cross-build system headers
261   --target-os=OS           compiler targets OS [$target_os]
262   --target-exec=CMD        command to run executables on target
263   --target-path=DIR        path to view of build directory on target
264   --target-samples=DIR     path to samples directory on target
265   --toolchain=NAME         set tool defaults according to NAME
266   --nm=NM                  use nm tool
267   --ar=AR                  use archive tool AR [$ar_default]
268   --as=AS                  use assembler AS [$as_default]
269   --cc=CC                  use C compiler CC [$cc_default]
270   --objcc=OCC              use ObjC compiler OCC [$cc_default]
271   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
272   --ld=LD                  use linker LD
273   --x86asmexe=X86ASM       use x86 assembler X86ASM
274   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
275   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276   --host-cc=HOSTCC         use host C compiler HOSTCC
277   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
278   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279   --host-ld=HOSTLD         use host linker HOSTLD
280   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
281   --host-libs=HLIBS        use libs HLIBS when linking for host
282   --host-os=OS             compiler host OS [$target_os]
283   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
284   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
285   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288   --extra-libs=ELIBS       add ELIBS [$ELIBS]
289   --extra-version=STRING   version string suffix []
290   --optflags=OPTFLAGS      override optimization-related compiler flags
291   --enable-pic             build position-independent code
292   --enable-thumb           compile for Thumb instruction set
293   --enable-lto             use link-time optimization
294   --env="ENV=override"     override the environment variables
295
296 Advanced options (experts only):
297   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
298   --custom-allocator=NAME  use a supported custom allocator
299   --disable-symver         disable symbol versioning
300   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301   --disable-safe-bitstream-reader
302                            disable buffer boundary checking in bitreaders
303                            (faster, but may crash)
304   --enable-sram            allow use of on-chip SRAM
305
306 Optimization options (experts only):
307   --disable-asm            disable all assembly optimizations
308   --disable-altivec        disable AltiVec optimizations
309   --disable-vsx            disable VSX optimizations
310   --disable-power8         disable POWER8 optimizations
311   --disable-amd3dnow       disable 3DNow! optimizations
312   --disable-amd3dnowext    disable 3DNow! extended optimizations
313   --disable-mmx            disable MMX optimizations
314   --disable-mmxext         disable MMXEXT optimizations
315   --disable-sse            disable SSE optimizations
316   --disable-sse2           disable SSE2 optimizations
317   --disable-sse3           disable SSE3 optimizations
318   --disable-ssse3          disable SSSE3 optimizations
319   --disable-sse4           disable SSE4 optimizations
320   --disable-sse42          disable SSE4.2 optimizations
321   --disable-avx            disable AVX optimizations
322   --disable-xop            disable XOP optimizations
323   --disable-fma3           disable FMA3 optimizations
324   --disable-fma4           disable FMA4 optimizations
325   --disable-avx2           disable AVX2 optimizations
326   --disable-armv5te        disable armv5te optimizations
327   --disable-armv6          disable armv6 optimizations
328   --disable-armv6t2        disable armv6t2 optimizations
329   --disable-vfp            disable VFP optimizations
330   --disable-neon           disable NEON optimizations
331   --disable-inline-asm     disable use of inline assembly
332   --disable-x86asm         disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335   --disable-debug          disable debugging symbols
336   --enable-debug=LEVEL     set the debug level [$debuglevel]
337   --disable-optimizations  disable compiler optimizations
338   --enable-extra-warnings  enable more compiler warnings
339   --samples=PATH           location of test samples for FATE, if not set use
340                            \$LIBAV_SAMPLES at make invocation time.
341   --enable-neon-clobber-test check NEON registers for clobbering (should be
342                            used only for debugging purposes)
343   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344                            should be used only for debugging purposes)
345   --enable-random          randomly enable/disable components
346   --disable-random
347   --enable-random=LIST     randomly enable/disable specific components or
348   --disable-random=LIST    component groups. LIST is a comma-separated list
349                            of NAME[:PROB] entries where NAME is a component
350                            (group) and PROB the probability associated with
351                            NAME (default 0.5).
352   --random-seed=VALUE      seed value for --enable/disable-random
353   --disable-valgrind-backtrace do not print a backtrace under Valgrind
354                            (only applies to --disable-optimizations builds)
355   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
356                            in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360   exit 0
361 }
362
363 quotes='""'
364
365 log(){
366     echo "$@" >> $logfile
367 }
368
369 log_file(){
370     log BEGIN $1
371     i=1
372     while read line; do
373         printf '%5s   %s\n' "${i}" "${line}"
374         i=$(($i+1))
375     done < $1 >> $logfile
376     log END $1
377 }
378
379 echolog(){
380     log "$@"
381     echo "$@"
382 }
383
384 warn(){
385     log "WARNING: $*"
386     WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390     echolog "$@"
391     cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git.  If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397     if disabled logging; then
398         cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402     else
403         cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407     fi
408     exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421     echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425     v=$(echo "$1" | sed "s/'/'\\\\''/g")
426     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427     echo "$v"
428 }
429
430 cleanws(){
431     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
432 }
433
434 filter(){
435     pat=$1
436     shift
437     for v; do
438         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439     done
440 }
441
442 filter_out(){
443     pat=$1
444     shift
445     for v; do
446         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447     done
448 }
449
450 map(){
451     m=$1
452     shift
453     for v; do eval $m; done
454 }
455
456 add_suffix(){
457     suffix=$1
458     shift
459     for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463     value=$1
464     shift
465     for var in $*; do
466         eval $var=$value
467     done
468 }
469
470 set_weak(){
471     value=$1
472     shift
473     for var; do
474         eval : \${$var:=$value}
475     done
476 }
477
478 sanitize_var_name(){
479     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483     var=$1
484     shift
485     eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489     eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493     for pvar in $*; do
494         eval level=\${${pvar}_level:=0}
495         eval ${pvar}_${level}="\$$pvar"
496         eval ${pvar}_level=$(($level+1))
497     done
498 }
499
500 popvar(){
501     for pvar in $*; do
502         eval level=\${${pvar}_level:-0}
503         test $level = 0 && continue
504         eval level=$(($level-1))
505         eval $pvar="\${${pvar}_${level}}"
506         eval ${pvar}_level=$level
507         eval unset ${pvar}_${level}
508     done
509 }
510
511 enable(){
512     set_all yes $*
513 }
514
515 disable(){
516     set_all no $*
517 }
518
519 enable_weak(){
520     set_weak yes $*
521 }
522
523 disable_weak(){
524     set_weak no $*
525 }
526
527 enable_sanitized(){
528     for var; do
529         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530     done
531 }
532
533 disable_sanitized(){
534     for var; do
535         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536     done
537 }
538
539 do_enable_deep(){
540     for var; do
541         enabled $var && continue
542         eval sel="\$${var}_select"
543         eval sgs="\$${var}_suggest"
544         pushvar var sgs
545         enable_deep $sel
546         popvar sgs
547         enable_deep_weak $sgs
548         popvar var
549     done
550 }
551
552 enable_deep(){
553     do_enable_deep $*
554     enable $*
555 }
556
557 enable_deep_weak(){
558     for var; do
559         disabled $var && continue
560         pushvar var
561         do_enable_deep $var
562         popvar var
563         enable_weak $var
564     done
565 }
566
567 enabled(){
568     test "${1#!}" = "$1" && op== || op=!=
569     eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573     test "${1#!}" = "$1" && op== || op=!=
574     eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578     for opt; do
579         enabled $opt || return 1
580     done
581 }
582
583 disabled_all(){
584     for opt; do
585         disabled $opt || return 1
586     done
587 }
588
589 enabled_any(){
590     for opt; do
591         enabled $opt && return 0
592     done
593 }
594
595 disabled_any(){
596     for opt; do
597         disabled $opt && return 0
598     done
599     return 1
600 }
601
602 set_default(){
603     for opt; do
604         eval : \${$opt:=\$${opt}_default}
605     done
606 }
607
608 is_in(){
609     value=$1
610     shift
611     for var in $*; do
612         [ $var = $value ] && return 0
613     done
614     return 1
615 }
616
617 check_deps(){
618     for cfg; do
619         enabled ${cfg}_checking && die "Circular dependency for $cfg."
620         disabled ${cfg}_checking && continue
621         enable ${cfg}_checking
622
623         eval dep_all="\$${cfg}_deps"
624         eval dep_any="\$${cfg}_deps_any"
625         eval dep_con="\$${cfg}_conflict"
626         eval dep_sel="\$${cfg}_select"
627         eval dep_sgs="\$${cfg}_suggest"
628         eval dep_ifa="\$${cfg}_if"
629         eval dep_ifn="\$${cfg}_if_any"
630
631         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637         enabled_all  $dep_all || disable $cfg
638         enabled_any  $dep_any || disable $cfg
639         disabled_all $dep_con || disable $cfg
640         disabled_any $dep_sel && disable $cfg
641
642         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645             # filter out library deps, these do not belong in extralibs
646             is_in $dep $LIBRARY_LIST && continue
647             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648         done
649
650         disable ${cfg}_checking
651     done
652 }
653
654 print_config(){
655     pfx=$1
656     files=$2
657     shift 2
658     map 'eval echo "$v \${$v:-no}"' "$@" |
659     awk "BEGIN { split(\"$files\", files) }
660         {
661             c = \"$pfx\" toupper(\$1);
662             v = \$2;
663             sub(/yes/, 1, v);
664             sub(/no/,  0, v);
665             for (f in files) {
666                 file = files[f];
667                 if (file ~ /\\.h\$/) {
668                     printf(\"#define %s %d\\n\", c, v) >>file;
669                 } else if (file ~ /\\.asm\$/) {
670                     printf(\"%%define %s %d\\n\", c, v) >>file;
671                 } else if (file ~ /\\.mak\$/) {
672                     n = -v ? \"\" : \"!\";
673                     printf(\"%s%s=yes\\n\", n, c) >>file;
674                 }
675             }
676         }"
677 }
678
679 print_enabled(){
680     suf=$1
681     shift
682     for v; do
683         enabled $v && printf "%s\n" ${v%$suf}
684     done
685 }
686
687 append(){
688     var=$1
689     shift
690     eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694     var=$1
695     shift
696     eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700     var=$1
701     uniq_list=""
702     for tok in $(eval echo \$$var); do
703         uniq_list="$(filter_out $tok $uniq_list) $tok"
704     done
705     eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709     var=$1
710     tmpvar=
711     for entry in $(eval echo \$$var); do
712         tmpvar="$tmpvar $(eval echo \$${entry})"
713     done
714     eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718     append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722     append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726     append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730     append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734     append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738     append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742     append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746     append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750     append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754     prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758     append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762     append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766     append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770     append compat_objs $1
771     shift
772     map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776     log "$@"
777     "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781     eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785     eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789     log check_cc "$@"
790     cat > $TMPC
791     log_file $TMPC
792     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796     log check_objcc "$@"
797     cat > $TMPC
798     log_file $TMPC
799     check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803     log check_cpp "$@"
804     cat > $TMPC
805     log_file $TMPC
806     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810     eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814     log check_as "$@"
815     cat > $TMPS
816     log_file $TMPS
817     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821     log check_inline_asm "$@"
822     name="$1"
823     code="$2"
824     shift 2
825     disable $name
826     check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832     log check_insn "$@"
833     check_inline_asm ${1}_inline "\"$2\""
834     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838     log check_x86asm "$@"
839     echo "$1" > $TMPS
840     log_file $TMPS
841     shift 1
842     check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846     eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850     log check_ld "$@"
851     flags=$(filter_out '-l*' "$@")
852     libs=$(filter '-l*' "$@")
853     check_cc $($cflags_filter $flags) || return
854     flags=$($ldflags_filter $flags)
855     libs=$($ldflags_filter $libs)
856     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860     hdr=$1
861     test "${hdr%.h}" = "${hdr}" &&
862         echo "#include $hdr"    ||
863         echo "#include <$hdr>"
864 }
865
866 check_code(){
867     log check_code "$@"
868     check=$1
869     headers=$2
870     code=$3
871     shift 3
872     {
873         for hdr in $headers; do
874             print_include $hdr
875         done
876         echo "int main(void) { $code; return 0; }"
877     } | check_$check "$@"
878 }
879
880 check_cppflags(){
881     log check_cppflags "$@"
882     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888     log test_cflags "$@"
889     set -- $($cflags_filter "$@")
890     check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896     log check_cflags "$@"
897     test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901     log test_objcflags "$@"
902     set -- $($objcflags_filter "$@")
903     check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909     log check_objcflags "$@"
910     test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914     log test_ldflags "$@"
915     check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921     log check_ldflags "$@"
922     test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926     log test_stripflags "$@"
927     # call check_cc to get a fresh TMPO
928     check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931     check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935     log check_stripflags "$@"
936     test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940     log check_header "$@"
941     header=$1
942     shift
943     disable_sanitized $header
944     check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951     log check_func "$@"
952     func=$1
953     shift
954     disable $func
955     check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962     log check_mathfunc "$@"
963     func=$1
964     narg=$2
965     shift 2
966     test $narg = 2 && args="f, g" || args="f"
967     disable $func
968     check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976     log check_func_headers "$@"
977     headers=$1
978     funcs=$2
979     shift 2
980     {
981         for hdr in $headers; do
982             print_include $hdr
983         done
984         for func in $funcs; do
985             echo "long check_$func(void) { return (long) $func; }"
986         done
987         echo "int main(void) { return 0; }"
988     } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992     log check_cpp_condition "$@"
993     header=$1
994     condition=$2
995     shift 2
996     check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005     log test_cflags_cpp "$@"
1006     flags=$1
1007     condition=$2
1008     shift 2
1009     set -- $($cflags_filter "$flags")
1010     check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018     log check_lib "$@"
1019     name="$1"
1020     headers="$2"
1021     funcs="$3"
1022     shift 3
1023     disable $name
1024     check_func_headers "$headers" "$funcs" "$@" &&
1025         enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 check_pkg_config(){
1029     log check_pkg_config "$@"
1030     name="$1"
1031     pkg_version="$2"
1032     pkg="${2%% *}"
1033     headers="$3"
1034     funcs="$4"
1035     shift 4
1036     disable $name
1037     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041         enable $name &&
1042         add_cflags    "$pkg_cflags" &&
1043         eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1044 }
1045
1046 check_exec(){
1047     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1048 }
1049
1050 check_exec_crash(){
1051     log check_exec_crash "$@"
1052     code=$(cat)
1053
1054     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1055     # are safe but may not be available everywhere.  Thus we use
1056     # raise(SIGTERM) instead.  The check is run in a subshell so we
1057     # can redirect the "Terminated" message from the shell.  SIGBUS
1058     # is not defined by standard C so it is used conditionally.
1059
1060     (check_exec "$@") >> $logfile 2>&1 <<EOF
1061 #include <signal.h>
1062 static void sighandler(int sig){
1063     raise(SIGTERM);
1064 }
1065 int foo(void){
1066     $code
1067 }
1068 int (*func_ptr)(void) = foo;
1069 int main(void){
1070     signal(SIGILL, sighandler);
1071     signal(SIGFPE, sighandler);
1072     signal(SIGSEGV, sighandler);
1073 #ifdef SIGBUS
1074     signal(SIGBUS, sighandler);
1075 #endif
1076     return func_ptr();
1077 }
1078 EOF
1079 }
1080
1081 check_type(){
1082     log check_type "$@"
1083     headers=$1
1084     type=$2
1085     shift 2
1086     disable_sanitized "$type"
1087     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1088 }
1089
1090 check_struct(){
1091     log check_struct "$@"
1092     headers=$1
1093     struct=$2
1094     member=$3
1095     shift 3
1096     disable_sanitized "${struct}_${member}"
1097     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1098         enable_sanitized "${struct}_${member}"
1099 }
1100
1101 check_builtin(){
1102     log check_builtin "$@"
1103     name=$1
1104     headers=$2
1105     builtin=$3
1106     shift 3
1107     disable "$name"
1108     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1109 }
1110
1111 check_compile_assert(){
1112     log check_compile_assert "$@"
1113     name=$1
1114     headers=$2
1115     condition=$3
1116     shift 3
1117     disable "$name"
1118     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1119 }
1120
1121 require(){
1122     log require "$@"
1123     name_version="$1"
1124     name="${1%% *}"
1125     headers="$2"
1126     func="$3"
1127     shift 3
1128     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1129 }
1130
1131 require_header(){
1132     log require "$@"
1133     header="$1"
1134     shift
1135     check_header "$header" "$@" || die "ERROR: $header not found"
1136 }
1137
1138 require_cpp_condition(){
1139     log require "$@"
1140     header="$1"
1141     condition="$2"
1142     shift 2
1143     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1144 }
1145
1146 require_pkg_config(){
1147     log require_pkg_config "$@"
1148     pkg_version="$2"
1149     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1150 }
1151
1152 hostcc_e(){
1153     eval printf '%s\\n' $HOSTCC_E
1154 }
1155
1156 hostcc_o(){
1157     eval printf '%s\\n' $HOSTCC_O
1158 }
1159
1160 check_host_cc(){
1161     log check_host_cc "$@"
1162     cat > $TMPC
1163     log_file $TMPC
1164     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1165 }
1166
1167 check_host_cpp(){
1168     log check_host_cpp "$@"
1169     cat > $TMPC
1170     log_file $TMPC
1171     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1172 }
1173
1174 check_host_cppflags(){
1175     log check_host_cppflags "$@"
1176     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1177 #include <stdlib.h>;
1178 EOF
1179 }
1180
1181 check_host_cflags(){
1182     log check_host_cflags "$@"
1183     set -- $($host_cflags_filter "$@")
1184     check_host_cc "$@" <<EOF && append host_cflags "$@"
1185 int x;
1186 EOF
1187 }
1188
1189 check_host_cpp_condition(){
1190     log check_host_cpp_condition "$@"
1191     header=$1
1192     condition=$2
1193     shift 2
1194     check_host_cpp "$@" <<EOF
1195 #include <$header>
1196 #if !($condition)
1197 #error "unsatisfied condition: $condition"
1198 #endif
1199 EOF
1200 }
1201
1202 apply(){
1203     file=$1
1204     shift
1205     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1206 }
1207
1208 cp_if_changed(){
1209     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1210     mkdir -p "$(dirname $2)"
1211     cp -f "$1" "$2"
1212 }
1213
1214 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1215 # system-dependent things.
1216
1217 AVCODEC_COMPONENTS="
1218     bsfs
1219     decoders
1220     encoders
1221     hwaccels
1222     parsers
1223 "
1224
1225 AVDEVICE_COMPONENTS="
1226     indevs
1227     outdevs
1228 "
1229 AVFILTER_COMPONENTS="
1230     filters
1231 "
1232 AVFORMAT_COMPONENTS="
1233     demuxers
1234     muxers
1235     protocols
1236 "
1237
1238 AVRESAMPLE_COMPONENTS=""
1239 AVUTIL_COMPONENTS=""
1240
1241 COMPONENT_LIST="
1242     $AVCODEC_COMPONENTS
1243     $AVDEVICE_COMPONENTS
1244     $AVFILTER_COMPONENTS
1245     $AVFORMAT_COMPONENTS
1246     $AVRESAMPLE_COMPONENTS
1247     $AVUTIL_COMPONENTS
1248 "
1249
1250 EXAMPLE_LIST="
1251     decode_audio_example
1252     decode_video_example
1253     encode_audio_example
1254     encode_video_example
1255     filter_audio_example
1256     metadata_example
1257     output_example
1258     qsvdec_example
1259     transcode_aac_example
1260 "
1261
1262 # catchall list of things that require external libs to link
1263 EXTRALIBS_LIST="
1264     cpu_init
1265     cws2fws
1266 "
1267
1268 HWACCEL_LIBRARY_NONFREE_LIST="
1269     cuda
1270     cuvid
1271     libnpp
1272 "
1273 HWACCEL_LIBRARY_LIST="
1274     $HWACCEL_LIBRARY_NONFREE_LIST
1275     d3d11va
1276     dxva2
1277     libmfx
1278     mmal
1279     nvenc
1280     omx
1281     vaapi
1282     vda
1283     vdpau
1284 "
1285
1286 EXTERNAL_LIBRARY_GPL_LIST="
1287     libcdio
1288     libx264
1289     libx265
1290     libxavs
1291     libxvid
1292 "
1293
1294 EXTERNAL_LIBRARY_NONFREE_LIST="
1295     libfaac
1296     libfdk_aac
1297     openssl
1298 "
1299
1300 EXTERNAL_LIBRARY_VERSION3_LIST="
1301     libopencore_amrnb
1302     libopencore_amrwb
1303     libvo_aacenc
1304     libvo_amrwbenc
1305 "
1306
1307 EXTERNAL_LIBRARY_LIST="
1308     $EXTERNAL_LIBRARY_GPL_LIST
1309     $EXTERNAL_LIBRARY_NONFREE_LIST
1310     $EXTERNAL_LIBRARY_VERSION3_LIST
1311     avisynth
1312     avxsynth
1313     frei0r
1314     gnutls
1315     libbs2b
1316     libdc1394
1317     libdcadec
1318     libfontconfig
1319     libfreetype
1320     libgsm
1321     libhdcd
1322     libilbc
1323     libjack
1324     libkvazaar
1325     libmp3lame
1326     libopencv
1327     libopenh264
1328     libopenjpeg
1329     libopus
1330     libpulse
1331     librtmp
1332     libschroedinger
1333     libsnappy
1334     libspeex
1335     libtheora
1336     libtwolame
1337     libvorbis
1338     libvpx
1339     libwavpack
1340     libwebp
1341     libxcb
1342     libxcb_shm
1343     libxcb_xfixes
1344 "
1345
1346 SYSTEM_LIBRARY_LIST="
1347     bzlib
1348     zlib
1349 "
1350
1351 FEATURE_LIST="
1352     gray
1353     hardcoded_tables
1354     omx_rpi
1355     runtime_cpudetect
1356     safe_bitstream_reader
1357     shared
1358     small
1359     sram
1360     static
1361     swscale_alpha
1362 "
1363
1364 LIBRARY_LIST="
1365     avcodec
1366     avdevice
1367     avfilter
1368     avformat
1369     avresample
1370     avutil
1371     swscale
1372 "
1373
1374 LICENSE_LIST="
1375     gpl
1376     nonfree
1377     version3
1378 "
1379
1380 PROGRAM_LIST="
1381     avconv
1382     avplay
1383     avprobe
1384 "
1385
1386 SUBSYSTEM_LIST="
1387     dct
1388     doc
1389     error_resilience
1390     faan
1391     fft
1392     lsp
1393     lzo
1394     mdct
1395     network
1396     rdft
1397 "
1398
1399 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1400 CONFIG_LIST="
1401     $EXAMPLE_LIST
1402     $EXTERNAL_LIBRARY_LIST
1403     $HWACCEL_LIBRARY_LIST
1404     $FEATURE_LIST
1405     $LICENSE_LIST
1406     $LIBRARY_LIST
1407     $PROGRAM_LIST
1408     $SUBSYSTEM_LIST
1409     $SYSTEM_LIBRARY_LIST
1410     neon_clobber_test
1411     pic
1412     pod2man
1413     texi2html
1414     thumb
1415     valgrind_backtrace
1416     xmm_clobber_test
1417     $COMPONENT_LIST
1418 "
1419
1420 THREADS_LIST="
1421     pthreads
1422     w32threads
1423 "
1424
1425 ATOMICS_LIST="
1426     atomics_gcc
1427     atomics_suncc
1428     atomics_win32
1429 "
1430
1431 ARCH_LIST="
1432     aarch64
1433     alpha
1434     arm
1435     avr32
1436     avr32_ap
1437     avr32_uc
1438     bfin
1439     ia64
1440     m68k
1441     mips
1442     mips64
1443     parisc
1444     ppc
1445     ppc64
1446     s390
1447     sh4
1448     sparc
1449     sparc64
1450     tilegx
1451     tilepro
1452     tomi
1453     x86
1454     x86_32
1455     x86_64
1456 "
1457
1458 ARCH_EXT_LIST_ARM="
1459     armv5te
1460     armv6
1461     armv6t2
1462     armv8
1463     neon
1464     vfp
1465     vfpv3
1466 "
1467
1468 ARCH_EXT_LIST_X86_SIMD="
1469     amd3dnow
1470     amd3dnowext
1471     avx
1472     avx2
1473     fma3
1474     fma4
1475     mmx
1476     mmxext
1477     sse
1478     sse2
1479     sse3
1480     sse4
1481     sse42
1482     ssse3
1483     xop
1484 "
1485
1486 ARCH_EXT_LIST_PPC="
1487     altivec
1488     dcbzl
1489     ldbrx
1490     power8
1491     ppc4xx
1492     vsx
1493 "
1494
1495 ARCH_EXT_LIST_X86="
1496     $ARCH_EXT_LIST_X86_SIMD
1497     cpunop
1498     i686
1499 "
1500
1501 ARCH_EXT_LIST_MIPS="
1502     loongson
1503     mips32r1
1504     mips64r1
1505     mips32r2
1506     mips64r2
1507     mips32r6
1508     mips64r6
1509 "
1510
1511 ARCH_EXT_LIST="
1512     $ARCH_EXT_LIST_ARM
1513     $ARCH_EXT_LIST_MIPS
1514     $ARCH_EXT_LIST_PPC
1515     $ARCH_EXT_LIST_X86
1516     vis
1517 "
1518
1519 ARCH_FEATURES="
1520     aligned_stack
1521     fast_64bit
1522     fast_clz
1523     fast_cmov
1524     local_aligned_8
1525     local_aligned_16
1526     local_aligned_32
1527     simd_align_16
1528     simd_align_32
1529 "
1530
1531 BUILTIN_LIST="
1532     atomic_cas_ptr
1533     machine_rw_barrier
1534     MemoryBarrier
1535     mm_empty
1536     rdtsc
1537     sem_timedwait
1538     sync_val_compare_and_swap
1539 "
1540 HAVE_LIST_CMDLINE="
1541     inline_asm
1542     symver
1543     x86asm
1544 "
1545
1546 HAVE_LIST_PUB="
1547     bigendian
1548     fast_unaligned
1549 "
1550
1551 HEADERS_LIST="
1552     AVFoundation_AVFoundation_h
1553     alsa_asoundlib_h
1554     arpa_inet_h
1555     cdio_paranoia_h
1556     cdio_paranoia_paranoia_h
1557     d3d11_h
1558     dispatch_dispatch_h
1559     dev_bktr_ioctl_bt848_h
1560     dev_bktr_ioctl_meteor_h
1561     dev_ic_bt8xx_h
1562     dev_video_bktr_ioctl_bt848_h
1563     dev_video_meteor_ioctl_meteor_h
1564     direct_h
1565     dlfcn_h
1566     dxgidebug_h
1567     dxva_h
1568     gsm_h
1569     io_h
1570     mach_mach_time_h
1571     machine_ioctl_bt848_h
1572     machine_ioctl_meteor_h
1573     malloc_h
1574     poll_h
1575     sndio_h
1576     soundcard_h
1577     stdatomic_h
1578     sys_mman_h
1579     sys_param_h
1580     sys_resource_h
1581     sys_select_h
1582     sys_soundcard_h
1583     sys_time_h
1584     sys_un_h
1585     sys_videoio_h
1586     unistd_h
1587     valgrind_valgrind_h
1588     windows_h
1589     winsock2_h
1590 "
1591
1592 INTRINSICS_LIST="
1593     intrinsics_neon
1594 "
1595
1596 MATH_FUNCS="
1597     atanf
1598     atan2f
1599     cbrtf
1600     cosf
1601     exp2
1602     exp2f
1603     expf
1604     isinf
1605     isnan
1606     ldexpf
1607     llrint
1608     llrintf
1609     log2
1610     log2f
1611     log10f
1612     lrint
1613     lrintf
1614     powf
1615     rint
1616     round
1617     roundf
1618     sinf
1619     trunc
1620     truncf
1621 "
1622
1623 SYSTEM_FUNCS="
1624     aligned_malloc
1625     clock_gettime
1626     closesocket
1627     CommandLineToArgvW
1628     CoTaskMemFree
1629     CryptGenRandom
1630     fcntl
1631     flt_lim
1632     fork
1633     getaddrinfo
1634     gethrtime
1635     getopt
1636     GetProcessAffinityMask
1637     GetProcessMemoryInfo
1638     GetProcessTimes
1639     getrusage
1640     GetSystemTimeAsFileTime
1641     gettimeofday
1642     gmtime_r
1643     inet_aton
1644     isatty
1645     LoadLibrary
1646     localtime_r
1647     mach_absolute_time
1648     MapViewOfFile
1649     memalign
1650     mkstemp
1651     mmap
1652     mprotect
1653     nanosleep
1654     posix_memalign
1655     sched_getaffinity
1656     SetConsoleTextAttribute
1657     setmode
1658     setrlimit
1659     Sleep
1660     strerror_r
1661     sysconf
1662     sysctl
1663     usleep
1664     VirtualAlloc
1665 "
1666
1667 TOOLCHAIN_FEATURES="
1668     as_arch_directive
1669     as_fpu_directive
1670     as_func
1671     as_object_arch
1672     asm_mod_q
1673     attribute_may_alias
1674     attribute_packed
1675     blocks_extension
1676     ebp_available
1677     ebx_available
1678     gnu_as
1679     ibm_asm
1680     inline_asm_labels
1681     pragma_deprecated
1682     symver_asm_label
1683     symver_gnu_asm
1684     vfp_args
1685     xform_asm
1686     xmm_clobbers
1687 "
1688
1689 TYPES_LIST="
1690     CONDITION_VARIABLE_Ptr
1691     CUVIDDECODECREATEINFO_bitDepthMinus8
1692     socklen_t
1693     struct_addrinfo
1694     struct_group_source_req
1695     struct_ip_mreq_source
1696     struct_ipv6_mreq
1697     struct_pollfd
1698     struct_rusage_ru_maxrss
1699     struct_sockaddr_in6
1700     struct_sockaddr_sa_len
1701     struct_sockaddr_storage
1702     struct_v4l2_frmivalenum_discrete
1703 "
1704
1705 HAVE_LIST="
1706     $ARCH_EXT_LIST
1707     $(add_suffix _external $ARCH_EXT_LIST)
1708     $(add_suffix _inline   $ARCH_EXT_LIST)
1709     $ARCH_FEATURES
1710     $BUILTIN_LIST
1711     $HAVE_LIST_CMDLINE
1712     $HAVE_LIST_PUB
1713     $HEADERS_LIST
1714     $INTRINSICS_LIST
1715     $MATH_FUNCS
1716     $SYSTEM_FUNCS
1717     $THREADS_LIST
1718     $TOOLCHAIN_FEATURES
1719     $TYPES_LIST
1720     dos_paths
1721     libc_msvcrt
1722     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1723     sdl
1724     section_data_rel_ro
1725     threads
1726     uwp
1727     vaapi_drm
1728     vaapi_x11
1729     vdpau_x11
1730 "
1731
1732 # options emitted with CONFIG_ prefix but not available on the command line
1733 CONFIG_EXTRA="
1734     aandcttables
1735     ac3dsp
1736     adts_header
1737     audio_frame_queue
1738     audiodsp
1739     blockdsp
1740     bswapdsp
1741     cabac
1742     cbs
1743     cbs_h264
1744     cbs_h265
1745     dirac_parse
1746     dvprofile
1747     faandct
1748     faanidct
1749     fdctdsp
1750     flacdsp
1751     fmtconvert
1752     g722dsp
1753     gmp
1754     golomb
1755     gplv3
1756     h263dsp
1757     h264chroma
1758     h264dsp
1759     h264parse
1760     h264pred
1761     h264qpel
1762     hevc_ps
1763     hpeldsp
1764     huffman
1765     huffyuvdsp
1766     huffyuvencdsp
1767     idctdsp
1768     iirfilter
1769     imdct15
1770     intrax8
1771     iso_media
1772     ividsp
1773     jpegtables
1774     lgplv3
1775     libx262
1776     libxcb_shape
1777     lpc
1778     lzf
1779     me_cmp
1780     mpeg_er
1781     mpegaudio
1782     mpegaudiodsp
1783     mpegaudioheader
1784     mpegvideo
1785     mpegvideoenc
1786     mss34dsp
1787     pixblockdsp
1788     qpeldsp
1789     qsv
1790     qsvdec
1791     qsvenc
1792     rangecoder
1793     riffdec
1794     riffenc
1795     rtpdec
1796     rtpenc_chain
1797     rv34dsp
1798     sinewin
1799     snappy
1800     srtp
1801     startcode
1802     texturedsp
1803     texturedspenc
1804     tpeldsp
1805     vaapi_encode
1806     vc1dsp
1807     videodsp
1808     vp3dsp
1809     vp56dsp
1810     vp8dsp
1811     wma_freqs
1812     wmv2dsp
1813 "
1814
1815 CMDLINE_SELECT="
1816     $ARCH_EXT_LIST
1817     $CONFIG_LIST
1818     $HAVE_LIST_CMDLINE
1819     $THREADS_LIST
1820     asm
1821     cross_compile
1822     debug
1823     extra_warnings
1824     logging
1825     lto
1826     optimizations
1827     rpath
1828 "
1829
1830 PATHS_LIST="
1831     bindir
1832     datadir
1833     docdir
1834     incdir
1835     libdir
1836     mandir
1837     prefix
1838     shlibdir
1839 "
1840
1841 CMDLINE_SET="
1842     $PATHS_LIST
1843     ar
1844     arch
1845     as
1846     cc
1847     objcc
1848     cpu
1849     cross_prefix
1850     custom_allocator
1851     dep_cc
1852     env
1853     extra_version
1854     host_cc
1855     host_cflags
1856     host_extralibs
1857     host_ld
1858     host_ldflags
1859     host_os
1860     ignore_tests
1861     ld
1862     logfile
1863     malloc_prefix
1864     nm
1865     optflags
1866     pkg_config
1867     pkg_config_flags
1868     random_seed
1869     samples
1870     sysinclude
1871     sysroot
1872     target_exec
1873     target_os
1874     target_path
1875     target_samples
1876     toolchain
1877     x86asmexe
1878 "
1879
1880 CMDLINE_APPEND="
1881     extra_cflags
1882     extra_objcflags
1883     host_cppflags
1884 "
1885
1886 # code dependency declarations
1887
1888 # architecture extensions
1889
1890 armv5te_deps="arm"
1891 armv6_deps="arm"
1892 armv6t2_deps="arm"
1893 armv8_deps="aarch64"
1894 neon_deps_any="aarch64 arm"
1895 intrinsics_neon_deps="neon"
1896 vfp_deps_any="aarch64 arm"
1897 vfpv3_deps="vfp"
1898
1899 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1900
1901 altivec_deps="ppc"
1902 dcbzl_deps="ppc"
1903 ldbrx_deps="ppc"
1904 ppc4xx_deps="ppc"
1905 vsx_deps="altivec"
1906 power8_deps="vsx"
1907
1908 loongson_deps="mips"
1909 mips32r1_deps="mips32"
1910 mips32r2_deps="mips32"
1911 mips32r6_deps="mips32"
1912 mips64r1_deps="mips64"
1913 mips64r2_deps="mips64"
1914 mips64r6_deps="mips64"
1915
1916 vis_deps="sparc"
1917
1918 cpunop_deps="i686"
1919 x86_64_select="i686"
1920 x86_64_suggest="fast_cmov"
1921
1922 amd3dnow_deps="mmx"
1923 amd3dnowext_deps="amd3dnow"
1924 i686_deps="x86"
1925 mmx_deps="x86"
1926 mmxext_deps="mmx"
1927 sse_deps="mmxext"
1928 sse2_deps="sse"
1929 sse3_deps="sse2"
1930 ssse3_deps="sse3"
1931 sse4_deps="ssse3"
1932 sse42_deps="sse4"
1933 avx_deps="sse42"
1934 xop_deps="avx"
1935 fma3_deps="avx"
1936 fma4_deps="avx"
1937 avx2_deps="avx"
1938
1939 mmx_external_deps="x86asm"
1940 mmx_inline_deps="inline_asm x86"
1941 mmx_suggest="mmx_external mmx_inline"
1942
1943 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1944     eval dep=\$${ext}_deps
1945     eval ${ext}_external_deps='"${dep}_external"'
1946     eval ${ext}_inline_deps='"${dep}_inline"'
1947     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1948 done
1949
1950 aligned_stack_if_any="aarch64 ppc x86"
1951 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1952 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1953 fast_unaligned_if_any="aarch64 ppc x86"
1954 simd_align_16_if_any="altivec neon sse"
1955 simd_align_32_if_any="avx"
1956
1957 # system capabilities
1958 symver_if_any="symver_asm_label symver_gnu_asm"
1959 valgrind_backtrace_conflict="optimizations"
1960 valgrind_backtrace_deps="valgrind_valgrind_h"
1961
1962 # threading support
1963 atomics_gcc_if="sync_val_compare_and_swap"
1964 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1965 atomics_win32_if="MemoryBarrier"
1966 atomics_native_if_any="$ATOMICS_LIST"
1967 w32threads_deps="atomics_native"
1968 threads_if_any="$THREADS_LIST"
1969
1970 # subsystems
1971 cbs_h264_select="cbs golomb"
1972 cbs_h265_select="cbs golomb"
1973 dct_select="rdft"
1974 dirac_parse_select="golomb"
1975 error_resilience_select="me_cmp"
1976 faandct_deps="faan"
1977 faandct_select="fdctdsp"
1978 faanidct_deps="faan"
1979 faanidct_select="idctdsp"
1980 h264dsp_select="startcode"
1981 hevc_ps_select="golomb"
1982 intrax8_select="blockdsp idctdsp"
1983 mdct_select="fft"
1984 rdft_select="fft"
1985 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1986 mpeg_er_select="error_resilience"
1987 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1988 mpegaudiodsp_select="dct"
1989 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1990 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1991 vc1dsp_select="h264chroma qpeldsp startcode"
1992
1993 # decoders / encoders
1994 aac_decoder_select="adts_header imdct15 mdct sinewin"
1995 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1996 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1997 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1998 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1999 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2000 adpcm_g722_decoder_select="g722dsp"
2001 adpcm_g722_encoder_select="g722dsp"
2002 aic_decoder_select="golomb idctdsp"
2003 alac_encoder_select="lpc"
2004 als_decoder_select="bswapdsp"
2005 amrnb_decoder_select="lsp"
2006 amrwb_decoder_select="lsp"
2007 amv_decoder_select="sp5x_decoder"
2008 ape_decoder_select="bswapdsp"
2009 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2010 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2011 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2012 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2013 atrac1_decoder_select="mdct sinewin"
2014 atrac3_decoder_select="mdct"
2015 atrac3p_decoder_select="mdct sinewin"
2016 bink_decoder_select="blockdsp hpeldsp"
2017 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2018 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2019 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2020 clearvideo_decoder_select="idctdsp"
2021 cllc_decoder_select="bswapdsp"
2022 comfortnoise_encoder_select="lpc"
2023 cook_decoder_select="audiodsp mdct sinewin"
2024 cscd_decoder_select="lzo"
2025 cscd_decoder_suggest="zlib"
2026 dca_decoder_select="fmtconvert mdct"
2027 dds_decoder_select="texturedsp"
2028 dnxhd_decoder_select="blockdsp idctdsp"
2029 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2030 dvvideo_decoder_select="dvprofile idctdsp"
2031 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2032 dxa_decoder_deps="zlib"
2033 dxv_decoder_select="lzf texturedsp"
2034 eac3_decoder_select="ac3_decoder"
2035 eac3_encoder_select="ac3_encoder"
2036 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2037 eatgq_decoder_select="aandcttables idctdsp"
2038 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2039 exr_decoder_deps="zlib"
2040 ffv1_decoder_select="rangecoder"
2041 ffv1_encoder_select="rangecoder"
2042 ffvhuff_decoder_select="huffyuv_decoder"
2043 ffvhuff_encoder_select="huffyuv_encoder"
2044 fic_decoder_select="golomb"
2045 flac_decoder_select="flacdsp"
2046 flac_encoder_select="bswapdsp flacdsp lpc"
2047 flashsv_decoder_deps="zlib"
2048 flashsv_encoder_deps="zlib"
2049 flashsv2_decoder_deps="zlib"
2050 flv_decoder_select="h263_decoder"
2051 flv_encoder_select="h263_encoder"
2052 fourxm_decoder_select="blockdsp bswapdsp"
2053 fraps_decoder_select="bswapdsp huffman"
2054 g2m_decoder_deps="zlib"
2055 g2m_decoder_select="blockdsp idctdsp jpegtables"
2056 h261_decoder_select="mpeg_er mpegvideo"
2057 h261_encoder_select="aandcttables mpegvideoenc"
2058 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2059 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2060 h263i_decoder_select="h263_decoder"
2061 h263p_encoder_select="h263_encoder"
2062 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2063 h264_decoder_suggest="error_resilience"
2064 hap_decoder_select="snappy texturedsp"
2065 hap_encoder_deps="libsnappy"
2066 hap_encoder_select="texturedspenc"
2067 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2068 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2069 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2070 iac_decoder_select="imc_decoder"
2071 imc_decoder_select="bswapdsp fft mdct sinewin"
2072 indeo3_decoder_select="hpeldsp"
2073 indeo4_decoder_select="ividsp"
2074 indeo5_decoder_select="ividsp"
2075 interplay_video_decoder_select="hpeldsp"
2076 jpegls_decoder_select="mjpeg_decoder"
2077 jv_decoder_select="blockdsp"
2078 lagarith_decoder_select="huffyuvdsp"
2079 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2080 magicyuv_decoder_select="huffyuvdsp"
2081 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2082 metasound_decoder_select="lsp mdct sinewin"
2083 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2084 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2085 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2086 mjpegb_decoder_select="mjpeg_decoder"
2087 mlp_decoder_select="mlp_parser"
2088 motionpixels_decoder_select="bswapdsp"
2089 mp1_decoder_select="mpegaudio"
2090 mp1float_decoder_select="mpegaudio"
2091 mp2_decoder_select="mpegaudio"
2092 mp2float_decoder_select="mpegaudio"
2093 mp3_decoder_select="mpegaudio"
2094 mp3adu_decoder_select="mpegaudio"
2095 mp3adufloat_decoder_select="mpegaudio"
2096 mp3float_decoder_select="mpegaudio"
2097 mp3on4_decoder_select="mpegaudio"
2098 mp3on4float_decoder_select="mpegaudio"
2099 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2100 mpc8_decoder_select="mpegaudiodsp"
2101 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2102 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2103 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2104 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2105 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2106 mpeg4_encoder_select="h263_encoder"
2107 msa1_decoder_select="mss34dsp"
2108 msmpeg4v1_decoder_select="h263_decoder"
2109 msmpeg4v2_decoder_select="h263_decoder"
2110 msmpeg4v2_encoder_select="h263_encoder"
2111 msmpeg4v3_decoder_select="h263_decoder"
2112 msmpeg4v3_encoder_select="h263_encoder"
2113 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2114 mts2_decoder_select="mss34dsp"
2115 mxpeg_decoder_select="mjpeg_decoder"
2116 nellymoser_decoder_select="mdct sinewin"
2117 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2118 nuv_decoder_select="idctdsp lzo"
2119 on2avc_decoder_select="mdct"
2120 opus_decoder_deps="avresample"
2121 opus_decoder_select="imdct15"
2122 png_decoder_deps="zlib"
2123 png_encoder_deps="zlib"
2124 png_encoder_select="huffyuvencdsp"
2125 prores_decoder_select="idctdsp"
2126 prores_encoder_select="fdctdsp"
2127 qcelp_decoder_select="lsp"
2128 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2129 ra_144_encoder_select="audio_frame_queue lpc"
2130 ralf_decoder_select="golomb"
2131 rscc_decoder_deps="zlib"
2132 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2133 rv10_encoder_select="h263_encoder"
2134 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2135 rv20_encoder_select="h263_encoder"
2136 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2137 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2138 screenpresso_decoder_deps="zlib"
2139 sipr_decoder_select="lsp"
2140 sp5x_decoder_select="mjpeg_decoder"
2141 svq1_decoder_select="hpeldsp"
2142 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2143 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2144 svq3_decoder_suggest="zlib"
2145 tak_decoder_select="audiodsp"
2146 tdsc_decoder_deps="zlib"
2147 tdsc_decoder_select="mjpeg_decoder"
2148 theora_decoder_select="vp3_decoder"
2149 thp_decoder_select="mjpeg_decoder"
2150 tiff_decoder_suggest="zlib"
2151 tiff_encoder_suggest="zlib"
2152 truehd_decoder_select="mlp_decoder"
2153 truemotion2_decoder_select="bswapdsp"
2154 truespeech_decoder_select="bswapdsp"
2155 tscc_decoder_deps="zlib"
2156 txd_decoder_select="texturedsp"
2157 twinvq_decoder_select="mdct lsp sinewin"
2158 utvideo_decoder_select="bswapdsp huffyuvdsp"
2159 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2160 vble_decoder_select="huffyuvdsp"
2161 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2162 vc1image_decoder_select="vc1_decoder"
2163 vorbis_decoder_select="mdct"
2164 vorbis_encoder_select="mdct"
2165 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2166 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2167 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2168 vp6a_decoder_select="vp6_decoder"
2169 vp6f_decoder_select="vp6_decoder"
2170 vp7_decoder_select="h264pred videodsp vp8dsp"
2171 vp8_decoder_select="h264pred videodsp vp8dsp"
2172 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2173 webp_decoder_select="vp8_decoder"
2174 wmapro_decoder_select="mdct sinewin wma_freqs"
2175 wmav1_decoder_select="mdct sinewin wma_freqs"
2176 wmav1_encoder_select="mdct sinewin wma_freqs"
2177 wmav2_decoder_select="mdct sinewin wma_freqs"
2178 wmav2_encoder_select="mdct sinewin wma_freqs"
2179 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2180 wmv1_decoder_select="h263_decoder"
2181 wmv1_encoder_select="h263_encoder"
2182 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2183 wmv2_encoder_select="h263_encoder wmv2dsp"
2184 wmv3_decoder_select="vc1_decoder"
2185 wmv3image_decoder_select="wmv3_decoder"
2186 zerocodec_decoder_deps="zlib"
2187 zlib_decoder_deps="zlib"
2188 zlib_encoder_deps="zlib"
2189 zmbv_decoder_deps="zlib"
2190 zmbv_encoder_deps="zlib"
2191
2192 # hardware accelerators
2193 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2194 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2195 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2196 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2197
2198 h263_vaapi_hwaccel_deps="vaapi"
2199 h263_vaapi_hwaccel_select="h263_decoder"
2200 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2201 h264_cuvid_hwaccel_select="h264_decoder"
2202 h264_d3d11va_hwaccel_deps="d3d11va"
2203 h264_d3d11va_hwaccel_select="h264_decoder"
2204 h264_d3d11va2_hwaccel_deps="d3d11va"
2205 h264_d3d11va2_hwaccel_select="h264_decoder"
2206 h264_dxva2_hwaccel_deps="dxva2"
2207 h264_dxva2_hwaccel_select="h264_decoder"
2208 h264_mmal_hwaccel_deps="mmal"
2209 h264_qsv_hwaccel_deps="libmfx"
2210 h264_vaapi_hwaccel_deps="vaapi"
2211 h264_vaapi_hwaccel_select="h264_decoder"
2212 h264_vda_hwaccel_deps="vda"
2213 h264_vda_hwaccel_select="h264_decoder"
2214 h264_vda_old_hwaccel_deps="vda"
2215 h264_vda_old_hwaccel_select="h264_decoder"
2216 h264_vdpau_hwaccel_deps="vdpau"
2217 h264_vdpau_hwaccel_select="h264_decoder"
2218 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2219 hevc_cuvid_hwaccel_select="hevc_decoder"
2220 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2221 hevc_d3d11va_hwaccel_select="hevc_decoder"
2222 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2223 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2224 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2225 hevc_dxva2_hwaccel_select="hevc_decoder"
2226 hevc_qsv_hwaccel_deps="libmfx"
2227 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2228 hevc_vaapi_hwaccel_select="hevc_decoder"
2229 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2230 hevc_vdpau_hwaccel_select="hevc_decoder"
2231 mpeg1_vdpau_hwaccel_deps="vdpau"
2232 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2233 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2234 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2235 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2236 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_dxva2_hwaccel_deps="dxva2"
2238 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_mmal_hwaccel_deps="mmal"
2240 mpeg2_qsv_hwaccel_deps="libmfx"
2241 mpeg2_vaapi_hwaccel_deps="vaapi"
2242 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2243 mpeg2_vdpau_hwaccel_deps="vdpau"
2244 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2245 mpeg4_vaapi_hwaccel_deps="vaapi"
2246 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2247 mpeg4_vdpau_hwaccel_deps="vdpau"
2248 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2249 vc1_d3d11va_hwaccel_deps="d3d11va"
2250 vc1_d3d11va_hwaccel_select="vc1_decoder"
2251 vc1_d3d11va2_hwaccel_deps="d3d11va"
2252 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2253 vc1_dxva2_hwaccel_deps="dxva2"
2254 vc1_dxva2_hwaccel_select="vc1_decoder"
2255 vc1_mmal_hwaccel_deps="mmal"
2256 vc1_qsv_hwaccel_deps="libmfx"
2257 vc1_vaapi_hwaccel_deps="vaapi"
2258 vc1_vaapi_hwaccel_select="vc1_decoder"
2259 vc1_vdpau_hwaccel_deps="vdpau"
2260 vc1_vdpau_hwaccel_select="vc1_decoder"
2261 vp8_qsv_hwaccel_deps="libmfx"
2262 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2263 vp8_vaapi_hwaccel_select="vp8_decoder"
2264 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2265 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2266 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2267 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2268 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2269
2270 # hardware-accelerated codecs
2271 nvenc_deps_any="libdl LoadLibrary"
2272 omx_deps="libdl pthreads"
2273 omx_rpi_select="omx"
2274 qsv_deps="libmfx"
2275 qsvdec_select="qsv"
2276 qsvenc_select="qsv"
2277 vaapi_encode_deps="vaapi"
2278
2279 hwupload_cuda_filter_deps="cuda"
2280 scale_npp_filter_deps="cuda libnpp"
2281
2282 h264_mmal_decoder_deps="mmal"
2283 h264_nvenc_encoder_deps="nvenc"
2284 h264_omx_encoder_deps="omx"
2285 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2286 h264_qsv_encoder_select="qsvenc"
2287 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2288 h264_vaapi_encoder_select="vaapi_encode golomb"
2289 hevc_nvenc_encoder_deps="nvenc"
2290 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2291 hevc_qsv_encoder_select="hevc_ps qsvenc"
2292 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2293 hevc_vaapi_encoder_select="vaapi_encode golomb"
2294 mjpeg_qsv_encoder_deps="libmfx"
2295 mjpeg_qsv_encoder_select="qsvenc"
2296 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2297 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2298 mpeg2_mmal_decoder_deps="mmal"
2299 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2300 mpeg2_qsv_encoder_select="qsvenc"
2301 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2302 mpeg2_vaapi_encoder_select="vaapi_encode"
2303 mpeg4_omx_encoder_deps="omx"
2304 vc1_mmal_decoder_deps="mmal"
2305 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2306 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2307 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2308 vp8_vaapi_encoder_select="vaapi_encode"
2309 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2310 vp9_vaapi_encoder_select="vaapi_encode"
2311
2312 nvenc_h264_encoder_select="h264_nvenc_encoder"
2313 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2314
2315 # parsers
2316 aac_parser_select="adts_header"
2317 h264_parser_select="golomb h264dsp h264parse"
2318 hevc_parser_select="hevc_ps"
2319 mpegaudio_parser_select="mpegaudioheader"
2320 mpegvideo_parser_select="mpegvideo"
2321 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2322 vc1_parser_select="vc1dsp"
2323
2324 # bitstream_filters
2325 aac_adtstoasc_bsf_select="adts_header"
2326 h264_metadata_bsf_select="cbs_h264"
2327 mjpeg2jpeg_bsf_select="jpegtables"
2328 trace_headers_bsf_select="cbs_h264 cbs_h265"
2329
2330 # external libraries
2331 avisynth_deps="LoadLibrary"
2332 avxsynth_deps="libdl"
2333 avisynth_demuxer_deps_any="avisynth avxsynth"
2334 avisynth_demuxer_select="riffdec"
2335 libdcadec_decoder_deps="libdcadec"
2336 libfaac_encoder_deps="libfaac"
2337 libfaac_encoder_select="audio_frame_queue"
2338 libfdk_aac_decoder_deps="libfdk_aac"
2339 libfdk_aac_encoder_deps="libfdk_aac"
2340 libfdk_aac_encoder_select="audio_frame_queue"
2341 libgsm_decoder_deps="libgsm"
2342 libgsm_encoder_deps="libgsm"
2343 libgsm_ms_decoder_deps="libgsm"
2344 libgsm_ms_encoder_deps="libgsm"
2345 libilbc_decoder_deps="libilbc"
2346 libilbc_encoder_deps="libilbc"
2347 libkvazaar_encoder_deps="libkvazaar"
2348 libmp3lame_encoder_deps="libmp3lame"
2349 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2350 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2351 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2352 libopencore_amrnb_encoder_select="audio_frame_queue"
2353 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2354 libopenh264_decoder_deps="libopenh264"
2355 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2356 libopenh264_encoder_deps="libopenh264"
2357 libopenjpeg_decoder_deps="libopenjpeg"
2358 libopenjpeg_encoder_deps="libopenjpeg"
2359 libopus_decoder_deps="libopus"
2360 libopus_encoder_deps="libopus"
2361 libopus_encoder_select="audio_frame_queue"
2362 libschroedinger_decoder_deps="libschroedinger"
2363 libschroedinger_encoder_deps="libschroedinger"
2364 libspeex_decoder_deps="libspeex"
2365 libspeex_encoder_deps="libspeex"
2366 libspeex_encoder_select="audio_frame_queue"
2367 libtheora_encoder_deps="libtheora"
2368 libtwolame_encoder_deps="libtwolame"
2369 libvo_aacenc_encoder_deps="libvo_aacenc"
2370 libvo_aacenc_encoder_select="audio_frame_queue"
2371 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2372 libvorbis_encoder_deps="libvorbis"
2373 libvorbis_encoder_select="audio_frame_queue"
2374 libvpx_vp8_decoder_deps="libvpx"
2375 libvpx_vp8_encoder_deps="libvpx"
2376 libvpx_vp9_decoder_deps="libvpx"
2377 libvpx_vp9_encoder_deps="libvpx"
2378 libwavpack_encoder_deps="libwavpack"
2379 libwavpack_encoder_select="audio_frame_queue"
2380 libwebp_encoder_deps="libwebp"
2381 libx262_encoder_deps="libx262"
2382 libx264_encoder_deps="libx264"
2383 libx265_encoder_deps="libx265"
2384 libxavs_encoder_deps="libxavs"
2385 libxvid_encoder_deps="libxvid mkstemp"
2386
2387 # demuxers / muxers
2388 ac3_demuxer_select="ac3_parser"
2389 asf_demuxer_select="riffdec"
2390 asf_muxer_select="riffenc"
2391 asf_stream_muxer_select="asf_muxer"
2392 avi_demuxer_select="iso_media riffdec"
2393 avi_muxer_select="riffenc"
2394 caf_demuxer_select="iso_media riffdec"
2395 dash_muxer_select="mp4_muxer"
2396 dirac_demuxer_select="dirac_parser"
2397 dv_demuxer_select="dvprofile"
2398 dv_muxer_select="dvprofile"
2399 dxa_demuxer_select="riffdec"
2400 eac3_demuxer_select="ac3_parser"
2401 f4v_muxer_select="mov_muxer"
2402 flac_demuxer_select="flac_parser"
2403 hds_muxer_select="flv_muxer"
2404 hls_muxer_select="mpegts_muxer"
2405 ipod_muxer_select="mov_muxer"
2406 ismv_muxer_select="mov_muxer"
2407 matroska_audio_muxer_select="matroska_muxer"
2408 matroska_demuxer_select="iso_media riffdec"
2409 matroska_demuxer_suggest="bzlib lzo zlib"
2410 matroska_muxer_select="iso_media riffenc"
2411 mmf_muxer_select="riffenc"
2412 mov_demuxer_select="iso_media riffdec"
2413 mov_demuxer_suggest="zlib"
2414 mov_muxer_select="iso_media riffenc rtpenc_chain"
2415 mp3_demuxer_select="mpegaudio_parser"
2416 mp3_muxer_select="mpegaudioheader"
2417 mp4_muxer_select="mov_muxer"
2418 mpegts_demuxer_select="iso_media"
2419 mpegts_muxer_select="adts_muxer latm_muxer"
2420 mpegtsraw_demuxer_select="mpegts_demuxer"
2421 mxf_d10_muxer_select="mxf_muxer"
2422 nut_muxer_select="riffenc"
2423 nuv_demuxer_select="riffdec"
2424 oga_muxer_select="ogg_muxer"
2425 ogg_demuxer_select="dirac_parse"
2426 opus_muxer_select="ogg_muxer"
2427 psp_muxer_select="mov_muxer"
2428 rtp_demuxer_select="sdp_demuxer"
2429 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2430 rtsp_demuxer_select="http_protocol rtpdec"
2431 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2432 sap_demuxer_select="sdp_demuxer"
2433 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2434 sdp_demuxer_select="rtpdec"
2435 smoothstreaming_muxer_select="ismv_muxer"
2436 spdif_demuxer_select="adts_header"
2437 spdif_muxer_select="adts_header"
2438 spx_muxer_select="ogg_muxer"
2439 swf_demuxer_suggest="zlib"
2440 tak_demuxer_select="tak_parser"
2441 tg2_muxer_select="mov_muxer"
2442 tgp_muxer_select="mov_muxer"
2443 w64_demuxer_select="wav_demuxer"
2444 wav_demuxer_select="riffdec"
2445 wav_muxer_select="riffenc"
2446 webm_muxer_select="iso_media riffenc"
2447 wtv_demuxer_select="mpegts_demuxer riffdec"
2448 xmv_demuxer_select="riffdec"
2449 xwma_demuxer_select="riffdec"
2450
2451 # indevs / outdevs
2452 alsa_indev_deps="alsa"
2453 alsa_outdev_deps="alsa"
2454 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2455 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2456 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2457 dv1394_indev_deps="dv1394"
2458 dv1394_indev_select="dv_demuxer"
2459 fbdev_indev_deps="linux_fb_h"
2460 jack_indev_deps="libjack"
2461 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2462 libcdio_indev_deps="libcdio"
2463 libdc1394_indev_deps="libdc1394"
2464 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2465 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2466 pulse_indev_deps="libpulse"
2467 sndio_indev_deps="sndio"
2468 sndio_outdev_deps="sndio"
2469 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2470 vfwcap_indev_deps="vfw32 vfwcap_defines"
2471 xcbgrab_indev_deps="libxcb libxcb_shape"
2472 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2473
2474 # protocols
2475 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2476 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2477 ffrtmpcrypt_protocol_select="tcp_protocol"
2478 ffrtmphttp_protocol_conflict="librtmp_protocol"
2479 ffrtmphttp_protocol_select="http_protocol"
2480 gopher_protocol_select="network"
2481 http_protocol_select="tcp_protocol"
2482 http_protocol_suggest="zlib"
2483 httpproxy_protocol_select="tcp_protocol"
2484 httpproxy_protocol_suggest="zlib"
2485 https_protocol_select="tls_protocol"
2486 https_protocol_suggest="zlib"
2487 icecast_protocol_select="http_protocol"
2488 librtmp_protocol_deps="librtmp"
2489 librtmpe_protocol_deps="librtmp"
2490 librtmps_protocol_deps="librtmp"
2491 librtmpt_protocol_deps="librtmp"
2492 librtmpte_protocol_deps="librtmp"
2493 mmsh_protocol_select="http_protocol"
2494 mmst_protocol_select="network"
2495 rtmp_protocol_conflict="librtmp_protocol"
2496 rtmp_protocol_select="tcp_protocol"
2497 rtmp_protocol_suggest="zlib"
2498 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2499 rtmpe_protocol_suggest="zlib"
2500 rtmps_protocol_conflict="librtmp_protocol"
2501 rtmps_protocol_select="tls_protocol"
2502 rtmps_protocol_suggest="zlib"
2503 rtmpt_protocol_select="ffrtmphttp_protocol"
2504 rtmpt_protocol_suggest="zlib"
2505 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2506 rtmpte_protocol_suggest="zlib"
2507 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2508 rtmpts_protocol_suggest="zlib"
2509 rtp_protocol_select="udp_protocol"
2510 sctp_protocol_deps="struct_sctp_event_subscribe"
2511 sctp_protocol_select="network"
2512 srtp_protocol_select="rtp_protocol srtp"
2513 tcp_protocol_select="network"
2514 tls_protocol_deps_any="gnutls openssl"
2515 tls_protocol_select="tcp_protocol"
2516 udp_protocol_select="network"
2517 unix_protocol_deps="sys_un_h"
2518 unix_protocol_select="network"
2519
2520 # filters
2521 asyncts_filter_deps="avresample"
2522 blackframe_filter_deps="gpl"
2523 boxblur_filter_deps="gpl"
2524 bs2b_filter_deps="libbs2b"
2525 cropdetect_filter_deps="gpl"
2526 deinterlace_qsv_filter_deps="libmfx"
2527 deinterlace_vaapi_filter_deps="vaapi"
2528 delogo_filter_deps="gpl"
2529 drawtext_filter_deps="libfreetype"
2530 drawtext_filter_suggest="libfontconfig"
2531 frei0r_filter_deps="frei0r libdl"
2532 frei0r_src_filter_deps="frei0r libdl"
2533 hdcd_filter_deps="libhdcd"
2534 hqdn3d_filter_deps="gpl"
2535 interlace_filter_deps="gpl"
2536 movie_filter_deps="avcodec avformat"
2537 ocv_filter_deps="libopencv"
2538 resample_filter_deps="avresample"
2539 scale_filter_deps="swscale"
2540 scale_qsv_filter_deps="libmfx"
2541 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2542
2543 # examples
2544 decode_audio_example_deps="avcodec avutil"
2545 decode_video_example_deps="avcodec avutil"
2546 encode_audio_example_deps="avcodec avutil"
2547 encode_video_example_deps="avcodec avutil"
2548 filter_audio_example_deps="avfilter avutil"
2549 metadata_example_deps="avformat avutil"
2550 output_example_deps="avcodec avformat avresample avutil swscale"
2551 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2552 transcode_aac_example_deps="avcodec avformat avresample"
2553
2554 # EXTRALIBS_LIST
2555 cpu_init_extralibs="pthreads_extralibs"
2556 cws2fws_extralibs="zlib_extralibs"
2557
2558 # libraries, in linking order
2559 avcodec_deps="avutil"
2560 avcodec_select="null_bsf"
2561 avdevice_deps="avformat avcodec avutil"
2562 avfilter_deps="avutil"
2563 avformat_deps="avcodec avutil"
2564 avformat_suggest="network"
2565 avresample_deps="avutil"
2566 swscale_deps="avutil"
2567
2568 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2569 avdevice_extralibs="libm_extralibs"
2570 avformat_extralibs="libm_extralibs"
2571 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2572 avresample_extralibs="libm_extralibs"
2573 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2574 swscale_extralibs="libm_extralibs"
2575
2576 # programs
2577 avconv_deps="avcodec avfilter avformat avresample swscale"
2578 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2579                fps_filter null_filter resample_filter scale_filter
2580                trim_filter"
2581 avconv_suggest="psapi shell32"
2582 avplay_deps="avcodec avfilter avformat avresample sdl"
2583 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2584 avplay_suggest="shell32"
2585 avprobe_deps="avcodec avformat"
2586 avprobe_suggest="shell32"
2587
2588 # documentation
2589 pod2man_deps="doc"
2590 texi2html_deps="doc"
2591
2592 # default parameters
2593
2594 logfile="avbuild/config.log"
2595
2596 # installation paths
2597 prefix_default="/usr/local"
2598 bindir_default='${prefix}/bin'
2599 datadir_default='${prefix}/share/avconv'
2600 docdir_default='${prefix}/share/doc/libav'
2601 incdir_default='${prefix}/include'
2602 libdir_default='${prefix}/lib'
2603 mandir_default='${prefix}/share/man'
2604 shlibdir_default="$libdir_default"
2605
2606 # toolchain
2607 ar_default="ar"
2608 cc_default="gcc"
2609 host_cc_default="gcc"
2610 x86asmexe_default="nasm"
2611 ln_s="ln -s -f"
2612 nm_default="nm -g"
2613 pkg_config_default=pkg-config
2614 ranlib="ranlib"
2615 strip="strip"
2616 version_script='--version-script'
2617
2618 # machine
2619 arch_default=$(uname -m)
2620 cpu="generic"
2621 intrinsics="none"
2622
2623 # OS
2624 target_os_default=$(tolower $(uname -s))
2625 host_os=$target_os_default
2626
2627 # configurable options
2628 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2629
2630 enable asm
2631 enable debug
2632 enable doc
2633 enable faan faandct faanidct
2634 enable optimizations
2635 enable safe_bitstream_reader
2636 enable static
2637 enable swscale_alpha
2638 enable valgrind_backtrace
2639
2640 # By default, enable only those hwaccels that have no external dependencies.
2641 enable d3d11va dxva2 vda vdpau
2642
2643 # internal components are enabled by default
2644 enable $EXTRALIBS_LIST
2645
2646 # Avoid external, non-system, libraries getting enabled by dependency resolution
2647 disable $EXTERNAL_LIBRARY_LIST
2648
2649 # build settings
2650 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2651 LIBPREF="lib"
2652 LIBSUF=".a"
2653 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2654 SLIBPREF="lib"
2655 SLIBSUF=".so"
2656 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2657 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2658 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2659 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2660 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2661 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2662 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2663
2664 asflags_filter=echo
2665 cflags_filter=echo
2666 ldflags_filter=echo
2667
2668 AS_C='-c'
2669 AS_O='-o $@'
2670 CC_C='-c'
2671 CC_E='-E -o $@'
2672 CC_O='-o $@'
2673 OBJCC_C='-c'
2674 OBJCC_E='-E -o $@'
2675 OBJCC_O='-o $@'
2676 X86ASM_O='-o $@'
2677 LD_O='-o $@'
2678 LD_LIB='-l%'
2679 LD_PATH='-L'
2680 HOSTCC_C='-c'
2681 HOSTCC_E='-E -o $@'
2682 HOSTCC_O='-o $@'
2683 HOSTLD_O='-o $@'
2684
2685 host_extralibs='-lm'
2686 host_cflags_filter=echo
2687 host_ldflags_filter=echo
2688
2689 target_path='$(CURDIR)'
2690
2691 # since the object filename is not given with the -MM flag, the compiler
2692 # is only able to print the basename, and we must add the path ourselves
2693 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2694 DEPFLAGS='-MM'
2695
2696 mkdir -p avbuild
2697
2698 # find source path
2699 if test -f configure; then
2700     source_path=.
2701 else
2702     source_path=$(cd $(dirname "$0"); pwd)
2703     echo "$source_path" | grep -q '[[:blank:]]' &&
2704         die "Out of tree builds are impossible with whitespace in source path."
2705     test -e "$source_path/config.h" &&
2706         die "Out of tree builds are impossible with config.h in source dir."
2707 fi
2708
2709 for v in "$@"; do
2710     r=${v#*=}
2711     l=${v%"$r"}
2712     r=$(sh_quote "$r")
2713     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2714 done
2715
2716 find_things(){
2717     thing=$1
2718     pattern=$2
2719     file=$source_path/$3
2720     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2721 }
2722
2723 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2724 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2725 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2726 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2727 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2728 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2729 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2730 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2731 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2732
2733 find_things_extern(){
2734     thing=$1
2735     pattern=$2
2736     file=$source_path/$3
2737     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2738 }
2739
2740 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2741 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2742
2743 AVCODEC_COMPONENTS_LIST="
2744     $BSF_LIST
2745     $DECODER_LIST
2746     $ENCODER_LIST
2747     $HWACCEL_LIST
2748     $PARSER_LIST
2749 "
2750
2751 AVDEVICE_COMPONENTS_LIST="
2752     $INDEV_LIST
2753     $OUTDEV_LIST
2754 "
2755
2756 AVFILTER_COMPONENTS_LIST="
2757     $FILTER_LIST
2758 "
2759
2760 AVFORMAT_COMPONENTS_LIST="
2761     $DEMUXER_LIST
2762     $MUXER_LIST
2763     $PROTOCOL_LIST
2764 "
2765
2766 ALL_COMPONENTS="
2767     $AVCODEC_COMPONENTS_LIST
2768     $AVDEVICE_COMPONENTS_LIST
2769     $AVFILTER_COMPONENTS_LIST
2770     $AVFORMAT_COMPONENTS_LIST
2771 "
2772
2773 for n in $COMPONENT_LIST; do
2774     v=$(toupper ${n%s})_LIST
2775     eval enable \$$v
2776     eval ${n}_if_any="\$$v"
2777 done
2778
2779 enable $ARCH_EXT_LIST
2780
2781 die_unknown(){
2782     echo "Unknown option \"$1\"."
2783     echo "See $0 --help for available options."
2784     exit 1
2785 }
2786
2787 print_3_columns() {
2788     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2789 }
2790
2791 show_list() {
2792     suffix=_$1
2793     shift
2794     echo $* | sed s/$suffix//g | print_3_columns
2795     exit 0
2796 }
2797
2798 rand_list(){
2799     IFS=', '
2800     set -- $*
2801     unset IFS
2802     for thing; do
2803         comp=${thing%:*}
2804         prob=${thing#$comp}
2805         prob=${prob#:}
2806         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2807         echo "prob ${prob:-0.5}"
2808         printf '%s\n' $comp
2809     done
2810 }
2811
2812 do_random(){
2813     action=$1
2814     shift
2815     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2816     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2817 }
2818
2819 for opt do
2820     optval="${opt#*=}"
2821     case "$opt" in
2822         --extra-ldflags=*)
2823             add_ldflags $optval
2824         ;;
2825         --extra-ldexeflags=*)
2826             add_ldexeflags $optval
2827         ;;
2828         --extra-ldsoflags=*)
2829             add_ldsoflags $optval
2830         ;;
2831         --extra-libs=*)
2832             add_extralibs $optval
2833         ;;
2834         --disable-devices)
2835             disable $INDEV_LIST $OUTDEV_LIST
2836         ;;
2837         --enable-debug=*)
2838             debuglevel="$optval"
2839         ;;
2840         --disable-programs)
2841             disable $PROGRAM_LIST
2842         ;;
2843         --disable-everything)
2844             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2845         ;;
2846         --disable-all)
2847             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2848             disable $LIBRARY_LIST $PROGRAM_LIST doc
2849         ;;
2850         --enable-random|--disable-random)
2851             action=${opt%%-random}
2852             do_random ${action#--} $COMPONENT_LIST
2853         ;;
2854         --enable-random=*|--disable-random=*)
2855             action=${opt%%-random=*}
2856             do_random ${action#--} $optval
2857         ;;
2858         --enable-*=*|--disable-*=*)
2859             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2860             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2861             eval list=\$$(toupper $thing)_LIST
2862             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2863             $action $(filter "$name" $list)
2864         ;;
2865         --enable-avserver|--disable-avserver*)
2866             warn "avserver has been removed, the ${opt} option is only"\
2867                  "provided for compatibility and will be removed in the future"
2868         ;;
2869         --enable-yasm|--disable-yasm)
2870             warn "The ${opt} option is only provided for compatibility and will be\n"\
2871                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2872             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2873         ;;
2874         --enable-?*|--disable-?*)
2875             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2876             if is_in $option $COMPONENT_LIST; then
2877                 test $action = disable && action=unset
2878                 eval $action \$$(toupper ${option%s})_LIST
2879             elif is_in $option $CMDLINE_SELECT; then
2880                 $action $option
2881             else
2882                 die_unknown $opt
2883             fi
2884         ;;
2885         --list-*)
2886             NAME="${opt#--list-}"
2887             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2888             NAME=${NAME%s}
2889             eval show_list $NAME \$$(toupper $NAME)_LIST
2890         ;;
2891         --help|-h) show_help
2892         ;;
2893         --quiet|-q) quiet=yes
2894         ;;
2895         *)
2896             optname="${opt%%=*}"
2897             optname="${optname#--}"
2898             optname=$(echo "$optname" | sed 's/-/_/g')
2899             if is_in $optname $CMDLINE_SET; then
2900                 eval $optname='$optval'
2901             elif is_in $optname $CMDLINE_APPEND; then
2902                 append $optname "$optval"
2903             else
2904                 die_unknown $opt
2905             fi
2906         ;;
2907     esac
2908 done
2909
2910 for e in $env; do
2911     eval "export $e"
2912 done
2913
2914 disabled logging && logfile=/dev/null
2915
2916 # Die early if licensing-related configure options are incompatible.
2917 die_license_disabled() {
2918     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2919 }
2920
2921 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2922 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2923 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2924
2925 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2926
2927 enabled_all gnutls openssl &&
2928     die "GnuTLS and OpenSSL must not be enabled at the same time."
2929
2930 # Disable all the library-specific components if the library itself
2931 # is disabled, see AVCODEC_LIST and following _LIST variables.
2932
2933 disable_components(){
2934     disabled ${1} && disable $(
2935         eval components="\$$(toupper ${1})_COMPONENTS"
2936         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2937     )
2938 }
2939
2940 map 'disable_components $v' $LIBRARY_LIST
2941
2942 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2943 set >> $logfile
2944
2945 case "$toolchain" in
2946     *-asan)
2947         cc_default="${toolchain%-asan}"
2948         add_cflags  -fsanitize=address
2949         add_ldflags -fsanitize=address
2950     ;;
2951     *-msan)
2952         cc_default="${toolchain%-msan}"
2953         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2954         add_ldflags -fsanitize=memory
2955     ;;
2956     *-tsan)
2957         cc_default="${toolchain%-tsan}"
2958         add_cflags  -fsanitize=thread -fPIE
2959         add_ldflags -fsanitize=thread -pie
2960         case "$toolchain" in
2961             gcc-tsan)
2962                 add_cflags  -fPIC
2963                 add_ldflags -fPIC
2964                 ;;
2965         esac
2966     ;;
2967     *-usan)
2968         cc_default="${toolchain%-usan}"
2969         add_cflags  -fsanitize=undefined
2970         add_ldflags -fsanitize=undefined
2971         case "$toolchain" in
2972             clang-usan)
2973                 add_cflags -O1
2974                 ;;
2975         esac
2976     ;;
2977     valgrind-*)
2978         target_exec_default="valgrind"
2979         case "$toolchain" in
2980             valgrind-massif)
2981                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2982                 ;;
2983             valgrind-memcheck)
2984                 target_exec_args="--track-origins=yes --leak-check=full"
2985                 ;;
2986         esac
2987     ;;
2988     msvc)
2989         # Check whether the current MSVC version needs the C99 converter.
2990         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2991         # support enough of C99 to build libav. Default to the new
2992         # behaviour if the regexp was unable to match anything, since this
2993         # successfully parses the version number of existing supported
2994         # versions that require the converter (MSVC 2010 and 2012).
2995         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2996         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2997             cc_default="cl"
2998         else
2999             cc_default="c99wrap cl"
3000         fi
3001         ld_default="$source_path/compat/windows/mslink"
3002         nm_default="dumpbin -symbols"
3003         ar_default="lib"
3004         case "$arch" in
3005         arm*)
3006             as_default="armasm"
3007             ;;
3008         esac
3009         target_os_default="win32"
3010         # Use a relative path for TMPDIR. This makes sure all the
3011         # ffconf temp files are written with a relative path, avoiding
3012         # issues with msys/win32 path conversion for MSVC parameters
3013         # such as -Fo<file> or -out:<file>.
3014         TMPDIR=.
3015     ;;
3016     icl)
3017         cc_default="icl"
3018         ld_default="xilink"
3019         nm_default="dumpbin -symbols"
3020         ar_default="xilib"
3021         target_os_default="win32"
3022         TMPDIR=.
3023     ;;
3024     gcov)
3025         add_cflags  -fprofile-arcs -ftest-coverage
3026         add_ldflags -fprofile-arcs -ftest-coverage
3027     ;;
3028     llvm-cov)
3029         add_cflags -fprofile-arcs -ftest-coverage
3030         add_ldflags --coverage
3031     ;;
3032     hardened)
3033         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3034         add_cflags   -fno-strict-overflow -fstack-protector-all
3035         add_ldflags  -Wl,-z,relro -Wl,-z,now
3036     ;;
3037     ?*)
3038         die "Unknown toolchain $toolchain"
3039     ;;
3040 esac
3041
3042 test -n "$cross_prefix" && enable cross_compile
3043
3044 if enabled cross_compile; then
3045     test -n "$arch" && test -n "$target_os" ||
3046         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3047 fi
3048
3049 ar_default="${cross_prefix}${ar_default}"
3050 cc_default="${cross_prefix}${cc_default}"
3051 objcc_default="${cross_prefix}${objcc_default}"
3052 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3053 nm_default="${cross_prefix}${nm_default}"
3054 pkg_config_default="${cross_prefix}${pkg_config_default}"
3055 ranlib="${cross_prefix}${ranlib}"
3056 strip="${cross_prefix}${strip}"
3057
3058 sysinclude_default="${sysroot}/usr/include"
3059
3060 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3061 enabled cross_compile || host_cc_default=$cc
3062 set_default host_cc
3063
3064 if ! $pkg_config --version >/dev/null 2>&1; then
3065     warn "$pkg_config not found, library detection may fail."
3066     pkg_config=false
3067 fi
3068
3069 exesuf() {
3070     case $1 in
3071         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3072     esac
3073 }
3074
3075 EXESUF=$(exesuf $target_os)
3076 HOSTEXESUF=$(exesuf $host_os)
3077
3078 # set temporary file name
3079 : ${TMPDIR:=$TEMPDIR}
3080 : ${TMPDIR:=$TMP}
3081 : ${TMPDIR:=/tmp}
3082
3083 if ! check_cmd mktemp -u XXXXXX; then
3084     # simple replacement for missing mktemp
3085     # NOT SAFE FOR GENERAL USE
3086     mktemp(){
3087         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3088         echo "$tmpname"
3089         mkdir "$tmpname"
3090     }
3091 fi
3092
3093 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3094     die "Unable to create temporary directory in $TMPDIR."
3095
3096 tmpfile(){
3097     tmp="${AVTMPDIR}/test"$2
3098     (set -C; exec > $tmp) 2> /dev/null ||
3099         die "Unable to create temporary file in $AVTMPDIR."
3100     eval $1=$tmp
3101 }
3102
3103 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3104 trap 'exit 2' INT
3105
3106 tmpfile TMPASM .asm
3107 tmpfile TMPC   .c
3108 tmpfile TMPE   $EXESUF
3109 tmpfile TMPH   .h
3110 tmpfile TMPO   .o
3111 tmpfile TMPS   .S
3112 tmpfile TMPSH  .sh
3113 tmpfile TMPV   .ver
3114
3115 unset -f mktemp
3116
3117 chmod +x $TMPE
3118
3119 # make sure we can execute files in $TMPDIR
3120 cat > $TMPSH 2>> $logfile <<EOF
3121 #! /bin/sh
3122 EOF
3123 chmod +x $TMPSH >> $logfile 2>&1
3124 if ! $TMPSH >> $logfile 2>&1; then
3125     cat <<EOF
3126 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3127 variable to another directory and make sure that it is not mounted noexec.
3128 EOF
3129     die "Sanity test failed."
3130 fi
3131
3132 armasm_flags(){
3133     for flag; do
3134         case $flag in
3135             # Filter out MSVC cl.exe options from cflags that shouldn't
3136             # be passed to gas-preprocessor
3137             -M[TD]*)                                            ;;
3138             *)                  echo $flag                      ;;
3139         esac
3140    done
3141 }
3142
3143 ccc_flags(){
3144     for flag; do
3145         case $flag in
3146             -std=c99)           echo -c99                       ;;
3147             -mcpu=*)            echo -arch ${flag#*=}           ;;
3148             -mieee)             echo -ieee                      ;;
3149             -O*|-fast)          echo $flag                      ;;
3150             -fno-math-errno)    echo -assume nomath_errno       ;;
3151             -g)                 echo -g3                        ;;
3152             -Wall)              echo -msg_enable level2         ;;
3153             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3154             -Wl,*)              echo $flag                      ;;
3155             -f*|-W*)                                            ;;
3156             *)                  echo $flag                      ;;
3157         esac
3158    done
3159 }
3160
3161 cparser_flags(){
3162     for flag; do
3163         case $flag in
3164             -Wno-switch)             echo -Wno-switch-enum ;;
3165             -Wno-format-zero-length) ;;
3166             -Wdisabled-optimization) ;;
3167             -Wno-pointer-sign)       echo -Wno-other ;;
3168             *)                       echo $flag ;;
3169         esac
3170     done
3171 }
3172
3173 msvc_common_flags(){
3174     for flag; do
3175         case $flag in
3176             # In addition to specifying certain flags under the compiler
3177             # specific filters, they must be specified here as well or else the
3178             # generic catch all at the bottom will print the original flag.
3179             -Wall)                ;;
3180             -Wextra)              ;;
3181             -std=c99)             ;;
3182             # Common flags
3183             -fomit-frame-pointer) ;;
3184             -g)                   echo -Z7 ;;
3185             -fno-math-errno)      ;;
3186             -fno-common)          ;;
3187             -fno-signed-zeros)    ;;
3188             -fPIC)                ;;
3189             -mthumb)              ;;
3190             -march=*)             ;;
3191             -lz)                  echo zlib.lib ;;
3192             -lx264)               echo libx264.lib ;;
3193             -l*)                  echo ${flag#-l}.lib ;;
3194             -L*)                  echo -libpath:${flag#-L} ;;
3195             *)                    echo $flag ;;
3196         esac
3197     done
3198 }
3199
3200 msvc_flags(){
3201     msvc_common_flags "$@"
3202     for flag; do
3203         case $flag in
3204             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3205                                        -wd4554 ;;
3206             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3207                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3208                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3209                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3210         esac
3211     done
3212 }
3213
3214 icl_flags(){
3215     msvc_common_flags "$@"
3216     for flag; do
3217         case $flag in
3218             # Despite what Intel's documentation says -Wall, which is supported
3219             # on Windows, does enable remarks so disable them here.
3220             -Wall)                echo $flag -Qdiag-disable:remark ;;
3221             -std=c99)             echo -Qstd=c99 ;;
3222         esac
3223     done
3224 }
3225
3226 pgi_flags(){
3227     for flag; do
3228         case $flag in
3229             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3230             -fomit-frame-pointer) echo -Mnoframe ;;
3231             -g)                   echo -gopt ;;
3232             *)                    echo $flag ;;
3233         esac
3234     done
3235 }
3236
3237 suncc_flags(){
3238     for flag; do
3239         case $flag in
3240             -march=*|-mcpu=*)
3241                 case "${flag#*=}" in
3242                     native)                   echo -xtarget=native       ;;
3243                     v9|niagara)               echo -xarch=sparc          ;;
3244                     ultrasparc)               echo -xarch=sparcvis       ;;
3245                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3246                     i586|pentium)             echo -xchip=pentium        ;;
3247                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3248                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3249                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3250                     pentium4*)          echo -xtarget=pentium4           ;;
3251                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3252                     *-sse3)             echo -xarch=sse3                 ;;
3253                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3254                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3255                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3256                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3257                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3258                     k8|opteron|athlon64|athlon-fx)
3259                                                echo -xarch=sse2a         ;;
3260                     athlon*)                   echo -xarch=pentium_proa  ;;
3261                 esac
3262                 ;;
3263             -std=c99)             echo -xc99              ;;
3264             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3265             -fPIC)                echo -KPIC -xcode=pic32 ;;
3266             -W*,*)                echo $flag              ;;
3267             -f*-*|-W*|-mimpure-text)                      ;;
3268             -shared)              echo -G                 ;;
3269             *)                    echo $flag              ;;
3270         esac
3271     done
3272 }
3273
3274 tms470_flags(){
3275     for flag; do
3276         case $flag in
3277             -march=*|-mcpu=*)
3278                 case "${flag#*=}" in
3279                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3280                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3281                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3282                     armv6*|arm11*)          echo -mv=6   ;;
3283                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3284                                             echo -mv=5e  ;;
3285                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3286                 esac
3287                 ;;
3288             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3289             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3290             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3291             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3292             -msoft-float)   echo --float_support=vfplib       ;;
3293             -O[0-3]|-mf=*)  echo $flag                        ;;
3294             -g)             echo -g -mn                       ;;
3295             -pds=*)         echo $flag                        ;;
3296             -D*|-I*)        echo $flag                        ;;
3297             --gcc|--abi=*)  echo $flag                        ;;
3298             -me)            echo $flag                        ;;
3299         esac
3300     done
3301 }
3302
3303 probe_cc(){
3304     pfx=$1
3305     _cc=$2
3306
3307     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3308     unset _ld_o _ldflags _ld_lib _ld_path
3309     unset _depflags _DEPCMD _DEPFLAGS
3310     _flags_filter=echo
3311
3312     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3313         _type=llvm_gcc
3314         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3315         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3316         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3317         _cflags_speed='-O3'
3318         _cflags_size='-Os'
3319     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3320         _type=gcc
3321         gcc_version=$($_cc --version | head -n1)
3322         gcc_basever=$($_cc -dumpversion)
3323         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3324         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3325         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3326         if ! $_cc -dumpversion | grep -q '^2\.'; then
3327             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3328         fi
3329         _cflags_speed='-O3'
3330         _cflags_size='-Os'
3331     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3332         _type=icc
3333         _ident=$($_cc --version | head -n1)
3334         _depflags='-MMD'
3335         _cflags_speed='-O3'
3336         _cflags_size='-Os'
3337         _cflags_noopt='-O1'
3338     elif $_cc -v 2>&1 | grep -q xlc; then
3339         _type=xlc
3340         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3341         _cflags_speed='-O5'
3342         _cflags_size='-O5 -qcompact'
3343     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3344         _type=ccc
3345         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3346         _DEPFLAGS='-M'
3347         _cflags_speed='-fast'
3348         _cflags_size='-O1'
3349         _flags_filter=ccc_flags
3350     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3351         test -d "$sysroot" || die "No valid sysroot specified."
3352         _type=armcc
3353         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3354         armcc_conf="$PWD/armcc.conf"
3355         $_cc --arm_linux_configure                 \
3356              --arm_linux_config_file="$armcc_conf" \
3357              --configure_sysroot="$sysroot"        \
3358              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3359              die "Error creating armcc configuration file."
3360         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3361         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3362         as_default="${cross_prefix}gcc"
3363         _depflags='-MMD'
3364         _cflags_speed='-O3'
3365         _cflags_size='-Os'
3366     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3367         _type=tms470
3368         _ident=$($_cc -version | head -n1 | tr -s ' ')
3369         _flags='--gcc --abi=eabi -me'
3370         _cc_e='-ppl -fe=$@'
3371         _cc_o='-fe=$@'
3372         _depflags='-ppa -ppd=$(@:.o=.d)'
3373         _cflags_speed='-O3 -mf=5'
3374         _cflags_size='-O3 -mf=2'
3375         _flags_filter=tms470_flags
3376     elif $_cc -v 2>&1 | grep -q clang; then
3377         _type=clang
3378         _ident=$($_cc --version 2>/dev/null | head -n1)
3379         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3380         _cflags_speed='-O3'
3381         _cflags_size='-Os'
3382     elif $_cc -V 2>&1 | grep -q Sun; then
3383         _type=suncc
3384         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3385         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3386         _DEPFLAGS='-xM1 -xc99'
3387         _ldflags='-std=c99'
3388         _cflags_speed='-O5'
3389         _cflags_size='-O5 -xspace'
3390         _flags_filter=suncc_flags
3391     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3392         _type=pathscale
3393         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3394         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3395         _cflags_speed='-O2'
3396         _cflags_size='-Os'
3397         _flags_filter='filter_out -Wdisabled-optimization'
3398     elif $_cc -v 2>&1 | grep -q Open64; then
3399         _type=open64
3400         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3401         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3402         _cflags_speed='-O2'
3403         _cflags_size='-Os'
3404         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3405     elif $_cc -V 2>&1 | grep -q Portland; then
3406         _type=pgi
3407         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3408         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3409         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3410         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3411         _cflags_noopt="-O1"
3412         _flags_filter=pgi_flags
3413     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3414         _type=armasm
3415         _ident=$($_cc | head -n1)
3416         # 4509: "This form of conditional instruction is deprecated"
3417         _flags="-nologo -ignore 4509"
3418         _flags_filter=armasm_flags
3419     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3420         _type=msvc
3421         _ident=$($_cc 2>&1 | head -n1)
3422         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3423         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3424         _cflags_speed="-O2"
3425         _cflags_size="-O1"
3426         _cflags_noopt="-O1"
3427         if $_cc -nologo- 2>&1 | grep -q Linker; then
3428             _ld_o='-out:$@'
3429         else
3430             _ld_o='-Fe$@'
3431         fi
3432         _cc_o='-Fo$@'
3433         _cc_e='-P -Fi$@'
3434         _flags_filter=msvc_flags
3435         _ld_lib='lib%.a'
3436         _ld_path='-libpath:'
3437         _flags='-nologo'
3438     elif $_cc 2>&1 | grep -q Intel; then
3439         _type=icl
3440         _ident=$($_cc 2>&1 | head -n1)
3441         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3442         # Not only is O3 broken on 13.x+ but it is slower on all previous
3443         # versions (tested) as well.
3444         _cflags_speed="-O2"
3445         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3446         if $_cc 2>&1 | grep -q Linker; then
3447             _ld_o='-out:$@'
3448         else
3449             _ld_o='-Fe$@'
3450         fi
3451         _cc_o='-Fo$@'
3452         _cc_e='-P'
3453         _flags_filter=icl_flags
3454         _ld_lib='lib%.a'
3455         _ld_path='-libpath:'
3456         # -Qdiag-error to make icl error when seeing certain unknown arguments
3457         _flags='-nologo -Qdiag-error:4044,10157'
3458         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3459         # with MSVC which enables it by default.
3460         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3461     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3462         # lld can emulate multiple different linkers; in ms link.exe mode,
3463         # the -? parameter gives the help output which contains an identifyable
3464         # string, while it gives an error in other modes.
3465         _type=lld-link
3466         # The link.exe mode doesn't have a switch for getting the version,
3467         # but we can force it back to gnu mode and get the version from there.
3468         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3469         _ld_o='-out:$@'
3470         _flags_filter=msvc_flags
3471         _ld_lib='lib%.a'
3472         _ld_path='-libpath:'
3473     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3474         _type=cparser
3475         _ident=$($_cc --version | head -n1)
3476         _depflags='-MMD'
3477         _cflags_speed='-O4'
3478         _cflags_size='-O2'
3479         _flags_filter=cparser_flags
3480     fi
3481
3482     eval ${pfx}_type=\$_type
3483     eval ${pfx}_ident=\$_ident
3484 }
3485
3486 set_ccvars(){
3487     eval ${1}_C=\${_cc_c-\${${1}_C}}
3488     eval ${1}_E=\${_cc_e-\${${1}_E}}
3489     eval ${1}_O=\${_cc_o-\${${1}_O}}
3490
3491     if [ -n "$_depflags" ]; then
3492         eval ${1}_DEPFLAGS=\$_depflags
3493     else
3494         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3495         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3496         eval DEP${1}FLAGS=\$_flags
3497     fi
3498 }
3499
3500 probe_cc cc "$cc"
3501 cflags_filter=$_flags_filter
3502 cflags_speed=$_cflags_speed
3503 cflags_size=$_cflags_size
3504 cflags_noopt=$_cflags_noopt
3505 add_cflags $_flags $_cflags
3506 cc_ldflags=$_ldflags
3507 set_ccvars CC
3508
3509 probe_cc hostcc "$host_cc"
3510 host_cflags_filter=$_flags_filter
3511 host_cflags_speed=$_cflags_speed
3512 add_host_cflags  $_flags $_cflags
3513 set_ccvars HOSTCC
3514
3515 test -n "$cc_type" && enable $cc_type ||
3516     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3517
3518 : ${as_default:=$cc}
3519 : ${objcc_default:=$cc}
3520 : ${dep_cc_default:=$cc}
3521 : ${ld_default:=$cc}
3522 : ${host_ld_default:=$host_cc}
3523 set_default ar as objcc dep_cc ld host_ld
3524
3525 probe_cc as "$as"
3526 asflags_filter=$_flags_filter
3527 add_asflags $_flags $_cflags
3528 set_ccvars AS
3529
3530 probe_cc objcc "$objcc"
3531 objcflags_filter=$_flags_filter
3532 add_objcflags $_flags $_cflags
3533 set_ccvars OBJC
3534
3535 probe_cc ld "$ld"
3536 ldflags_filter=$_flags_filter
3537 add_ldflags $_flags $_ldflags
3538 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3539 LD_O=${_ld_o-$LD_O}
3540 LD_LIB=${_ld_lib-$LD_LIB}
3541 LD_PATH=${_ld_path-$LD_PATH}
3542
3543 probe_cc hostld "$host_ld"
3544 host_ldflags_filter=$_flags_filter
3545 add_host_ldflags $_flags $_ldflags
3546 HOSTLD_O=${_ld_o-$HOSTLD_O}
3547
3548 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3549     probe_cc depcc "$dep_cc"
3550     CCDEP=${_DEPCMD:-$DEPCMD}
3551     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3552     DEPCCFLAGS=$_flags
3553 fi
3554
3555 if $ar 2>&1 | grep -q Microsoft; then
3556     arflags="-nologo"
3557     ar_o='-out:$@'
3558 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3559     arflags="rq"
3560     ar_o='$@'
3561 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3562     arflags='-Xany -r -c'
3563     ar_o='$@'
3564 else
3565     arflags="rc"
3566     ar_o='$@'
3567 fi
3568
3569 add_cflags $extra_cflags
3570 add_objcflags $extra_objcflags
3571 add_asflags $extra_cflags
3572
3573 if test -n "$sysroot"; then
3574     case "$cc_type" in
3575         gcc|llvm_gcc|clang)
3576             add_cppflags --sysroot="$sysroot"
3577             add_ldflags --sysroot="$sysroot"
3578         ;;
3579         tms470)
3580             add_cppflags -I"$sysinclude"
3581             add_ldflags  --sysroot="$sysroot"
3582         ;;
3583     esac
3584 fi
3585
3586 if test "$cpu" = host; then
3587     enabled cross_compile &&
3588         die "--cpu=host makes no sense when cross-compiling."
3589
3590     case "$cc_type" in
3591         gcc|llvm_gcc)
3592             check_native(){
3593                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3594                 sed -n "/cc1.*$1=/{
3595                             s/.*$1=\\([^ ]*\\).*/\\1/
3596                             p
3597                             q
3598                         }" $TMPE
3599             }
3600             cpu=$(check_native -march || check_native -mcpu)
3601         ;;
3602     esac
3603
3604     test "${cpu:-host}" = host &&
3605         die "--cpu=host not supported with compiler $cc"
3606 fi
3607
3608 # Deal with common $arch aliases
3609 case "$arch" in
3610     aarch64|arm64)
3611         arch="aarch64"
3612     ;;
3613     arm*)
3614         arch="arm"
3615     ;;
3616     mips*|IP*)
3617         case "$arch" in
3618         *el)
3619             add_cppflags -EL
3620             add_ldflags -EL
3621         ;;
3622         *eb)
3623             add_cppflags -EB
3624             add_ldflags -EB
3625         ;;
3626         esac
3627         arch="mips"
3628     ;;
3629     parisc*|hppa*)
3630         arch="parisc"
3631     ;;
3632     "Power Macintosh"|ppc*|powerpc*)
3633         arch="ppc"
3634     ;;
3635     s390|s390x)
3636         arch="s390"
3637     ;;
3638     sh4|sh)
3639         arch="sh4"
3640     ;;
3641     sun4u|sparc*)
3642         arch="sparc"
3643     ;;
3644     tilegx|tile-gx)
3645         arch="tilegx"
3646     ;;
3647     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3648         arch="x86"
3649     ;;
3650 esac
3651
3652 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3653 enable $arch
3654
3655 # Add processor-specific flags
3656 if enabled aarch64; then
3657
3658     case $cpu in
3659         armv*)
3660             cpuflags="-march=$cpu"
3661         ;;
3662         *)
3663             cpuflags="-mcpu=$cpu"
3664         ;;
3665     esac
3666
3667 elif enabled alpha; then
3668
3669     cpuflags="-mcpu=$cpu"
3670
3671 elif enabled arm; then
3672
3673     check_arm_arch() {
3674         check_cpp_condition stddef.h \
3675             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3676             $cpuflags
3677     }
3678
3679     probe_arm_arch() {
3680         if   check_arm_arch 4;        then echo armv4
3681         elif check_arm_arch 4T;       then echo armv4t
3682         elif check_arm_arch 5;        then echo armv5
3683         elif check_arm_arch 5E;       then echo armv5e
3684         elif check_arm_arch 5T;       then echo armv5t
3685         elif check_arm_arch 5TE;      then echo armv5te
3686         elif check_arm_arch 5TEJ;     then echo armv5te
3687         elif check_arm_arch 6;        then echo armv6
3688         elif check_arm_arch 6J;       then echo armv6j
3689         elif check_arm_arch 6K;       then echo armv6k
3690         elif check_arm_arch 6Z;       then echo armv6z
3691         elif check_arm_arch 6ZK;      then echo armv6zk
3692         elif check_arm_arch 6T2;      then echo armv6t2
3693         elif check_arm_arch 7;        then echo armv7
3694         elif check_arm_arch 7A  7_A;  then echo armv7-a
3695         elif check_arm_arch 7S;       then echo armv7-a
3696         elif check_arm_arch 7R  7_R;  then echo armv7-r
3697         elif check_arm_arch 7M  7_M;  then echo armv7-m
3698         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3699         elif check_arm_arch 8A  8_A;  then echo armv8-a
3700         fi
3701     }
3702
3703     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3704
3705     case $cpu in
3706         armv*)
3707             cpuflags="-march=$cpu"
3708             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3709         ;;
3710         *)
3711             cpuflags="-mcpu=$cpu"
3712             case $cpu in
3713                 cortex-a*)                               subarch=armv7a  ;;
3714                 cortex-r*)                               subarch=armv7r  ;;
3715                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3716                 arm11*)                                  subarch=armv6   ;;
3717                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3718                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3719                 *)                             subarch=$(probe_arm_arch) ;;
3720             esac
3721         ;;
3722     esac
3723
3724     case "$subarch" in
3725         armv5t*)    enable fast_clz                ;;
3726         armv[6-8]*) enable fast_clz fast_unaligned ;;
3727     esac
3728
3729 elif enabled avr32; then
3730
3731     case $cpu in
3732         ap7[02]0[0-2])
3733             subarch="avr32_ap"
3734             cpuflags="-mpart=$cpu"
3735         ;;
3736         ap)
3737             subarch="avr32_ap"
3738             cpuflags="-march=$cpu"
3739         ;;
3740         uc3[ab]*)
3741             subarch="avr32_uc"
3742             cpuflags="-mcpu=$cpu"
3743         ;;
3744         uc)
3745             subarch="avr32_uc"
3746             cpuflags="-march=$cpu"
3747         ;;
3748     esac
3749
3750 elif enabled bfin; then
3751
3752     cpuflags="-mcpu=$cpu"
3753
3754 elif enabled mips; then
3755
3756     cpuflags="-march=$cpu"
3757
3758 elif enabled ppc; then
3759
3760     disable ldbrx
3761
3762     case $(tolower $cpu) in
3763         601|ppc601|powerpc601)
3764             cpuflags="-mcpu=601"
3765             disable altivec
3766         ;;
3767         603*|ppc603*|powerpc603*)
3768             cpuflags="-mcpu=603"
3769             disable altivec
3770         ;;
3771         604*|ppc604*|powerpc604*)
3772             cpuflags="-mcpu=604"
3773             disable altivec
3774         ;;
3775         g3|75*|ppc75*|powerpc75*)
3776             cpuflags="-mcpu=750"
3777             disable altivec
3778         ;;
3779         g4|745*|ppc745*|powerpc745*)
3780             cpuflags="-mcpu=7450"
3781             disable vsx
3782         ;;
3783         74*|ppc74*|powerpc74*)
3784             cpuflags="-mcpu=7400"
3785             disable vsx
3786         ;;
3787         g5|970|ppc970|powerpc970)
3788             cpuflags="-mcpu=970"
3789             disable vsx
3790         ;;
3791         power[3-6]*)
3792             cpuflags="-mcpu=$cpu"
3793             disable vsx
3794         ;;
3795         power[7-8]*)
3796             cpuflags="-mcpu=$cpu"
3797             enable ldbrx
3798         ;;
3799         cell)
3800             cpuflags="-mcpu=cell"
3801             enable ldbrx
3802             disable vsx
3803         ;;
3804         e500mc)
3805             cpuflags="-mcpu=e500mc"
3806             disable altivec
3807         ;;
3808         e500v2)
3809             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3810             disable altivec
3811             disable dcbzl
3812         ;;
3813         e500)
3814             cpuflags="-mcpu=8540 -mhard-float"
3815             disable altivec
3816             disable dcbzl
3817         ;;
3818     esac
3819
3820 elif enabled sparc; then
3821
3822     case $cpu in
3823         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3824             cpuflags="-mcpu=$cpu"
3825         ;;
3826         ultrasparc*|niagara[234])
3827             cpuflags="-mcpu=$cpu"
3828         ;;
3829     esac
3830
3831 elif enabled x86; then
3832
3833     case $cpu in
3834         i[345]86|pentium)
3835             cpuflags="-march=$cpu"
3836             disable i686
3837             disable mmx
3838         ;;
3839         # targets that do NOT support nopl and conditional mov (cmov)
3840         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3841             cpuflags="-march=$cpu"
3842             disable i686
3843         ;;
3844         # targets that do support nopl and conditional mov (cmov)
3845         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3846             cpuflags="-march=$cpu"
3847             enable i686
3848             enable fast_cmov
3849         ;;
3850         # targets that do support conditional mov but on which it's slow
3851         pentium4|pentium4m|prescott|nocona)
3852             cpuflags="-march=$cpu"
3853             enable i686
3854             disable fast_cmov
3855         ;;
3856     esac
3857
3858 fi
3859
3860 if [ "$cpu" != generic ]; then
3861     add_cflags  $cpuflags
3862     add_asflags $cpuflags
3863     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3864 fi
3865
3866 # compiler sanity check
3867 check_exec <<EOF
3868 int main(void){ return 0; }
3869 EOF
3870 if test "$?" != 0; then
3871     echo "$cc is unable to create an executable file."
3872     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3873         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3874         echo "Only do this if you know what cross compiling means."
3875     fi
3876     die "C compiler test failed."
3877 fi
3878
3879 add_cppflags -D_ISOC99_SOURCE
3880
3881 # some compilers silently accept -std=c11, so we also need to check that the
3882 # version macro is defined properly
3883 check_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3884     add_cflags -std=c11 ||
3885     check_cflags -std=c99
3886
3887 check_cppflags -D_FILE_OFFSET_BITS=64
3888 check_cppflags -D_LARGEFILE_SOURCE
3889
3890 add_host_cppflags -D_ISOC99_SOURCE
3891 check_host_cflags -std=c99
3892 check_host_cflags -Wall
3893 check_host_cflags $host_cflags_speed
3894
3895 check_64bit(){
3896     arch32=$1
3897     arch64=$2
3898     expr=$3
3899     check_code cc "" "int test[2*($expr) - 1]" &&
3900         subarch=$arch64 || subarch=$arch32
3901 }
3902
3903 case "$arch" in
3904     aarch64|alpha|ia64)
3905         spic=$shared
3906     ;;
3907     mips)
3908         check_64bit mips mips64 '_MIPS_SIM > 1'
3909         spic=$shared
3910     ;;
3911     parisc)
3912         check_64bit parisc parisc64 'sizeof(void *) > 4'
3913         spic=$shared
3914     ;;
3915     ppc)
3916         check_64bit ppc ppc64 'sizeof(void *) > 4'
3917         spic=$shared
3918     ;;
3919     s390)
3920         check_64bit s390 s390x 'sizeof(void *) > 4'
3921         spic=$shared
3922     ;;
3923     sparc)
3924         check_64bit sparc sparc64 'sizeof(void *) > 4'
3925         spic=$shared
3926     ;;
3927     x86)
3928         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3929         if test "$subarch" = "x86_64"; then
3930             spic=$shared
3931         fi
3932     ;;
3933 esac
3934
3935 enable $subarch
3936 enabled spic && enable_weak pic
3937
3938 enabled x86_64 && objformat=elf64 || objformat="elf32"
3939
3940 # OS specific
3941 case $target_os in
3942     aix)
3943         SHFLAGS=-shared
3944         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3945         enabled shared && add_ldflags -Wl,-brtl
3946         ;;
3947     android)
3948         disable symver
3949         enable section_data_rel_ro
3950         SLIB_INSTALL_NAME='$(SLIBNAME)'
3951         SLIB_INSTALL_LINKS=
3952         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3953         ;;
3954     haiku)
3955         prefix_default="/boot/common"
3956         network_extralibs="-lnetwork"
3957         host_extralibs=
3958         ;;
3959     sunos)
3960         SHFLAGS='-shared -Wl,-h,$$(@F)'
3961         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3962         network_extralibs="-lsocket -lnsl"
3963         # When using suncc to build, the Solaris linker will mark
3964         # an executable with each instruction set encountered by
3965         # the Solaris assembler.  As our libraries contain their own
3966         # guards for processor-specific code, instead suppress
3967         # generation of the HWCAPS ELF section on Solaris x86 only.
3968         enabled_all suncc x86 &&
3969             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3970             add_ldflags -Wl,-M,mapfile
3971         nm_default='nm -P -g'
3972         version_script='-M'
3973         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3974         ;;
3975     netbsd)
3976         disable symver
3977         oss_indev_extralibs="-lossaudio"
3978         oss_outdev_extralibs="-lossaudio"
3979         ;;
3980     openbsd|bitrig)
3981         disable symver
3982         SHFLAGS='-shared'
3983         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3984         SLIB_INSTALL_LINKS=
3985         oss_indev_extralibs="-lossaudio"
3986         oss_outdev_extralibs="-lossaudio"
3987         ;;
3988     dragonfly)
3989         disable symver
3990         ;;
3991     freebsd)
3992         ;;
3993     bsd/os)
3994         add_extralibs -lpoll -lgnugetopt
3995         ;;
3996     darwin)
3997         enabled ppc && add_asflags -force_cpusubtype_ALL
3998         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3999         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4000         add_ldflags -Wl,-dynamic,-search_paths_first
4001         check_cflags -Werror=partial-availability
4002         SLIBSUF=".dylib"
4003         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
4004         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
4005         enabled x86_64 && objformat="macho64" || objformat="macho32"
4006         enabled_any pic shared ||
4007             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4008         check_header dispatch/dispatch.h &&
4009             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4010         if test -n "$sysroot"; then
4011             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4012             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
4013         fi
4014         ;;
4015     msys*)
4016         die "Native MSYS builds are discouraged, please use the MINGW environment."
4017         ;;
4018     mingw32*|mingw64*)
4019         if test $target_os = "mingw32ce"; then
4020             disable network
4021         else
4022             target_os=mingw32
4023         fi
4024         LIBTARGET=i386
4025         if enabled x86_64; then
4026             LIBTARGET="i386:x86-64"
4027         elif enabled arm; then
4028             LIBTARGET=arm-wince
4029         fi
4030         check_ldflags -Wl,--nxcompat
4031         check_ldflags -Wl,--dynamicbase
4032         shlibdir_default="$bindir_default"
4033         SLIBPREF=""
4034         SLIBSUF=".dll"
4035         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4036         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4037         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4038         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4039         SLIB_INSTALL_LINKS=
4040         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4041         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4042         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4043         enabled x86_64 && objformat="win64" || objformat="win32"
4044         dlltool="${cross_prefix}dlltool"
4045         ranlib=:
4046         enable dos_paths
4047         ;;
4048     win32|win64)
4049         disable symver
4050         if enabled shared; then
4051             # Link to the import library instead of the normal static library
4052             # for shared libs.
4053             LD_LIB='%.lib'
4054             # Cannot build both shared and static libs with MSVC or icl.
4055             disable static
4056         fi
4057         shlibdir_default="$bindir_default"
4058         SLIBPREF=""
4059         SLIBSUF=".dll"
4060         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4061         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4062         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4063         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4064         SLIB_INSTALL_LINKS=
4065         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4066         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4067         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4068         enabled x86_64 && objformat="win64" || objformat="win32"
4069         ranlib=:
4070         enable dos_paths
4071         ;;
4072     cygwin*)
4073         target_os=cygwin
4074         shlibdir_default="$bindir_default"
4075         SLIBPREF="cyg"
4076         SLIBSUF=".dll"
4077         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4078         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4079         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4080         SLIB_INSTALL_LINKS=
4081         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4082         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4083         enabled x86_64 && objformat="win64" || objformat="win32"
4084         enable dos_paths
4085         ;;
4086     *-dos|freedos|opendos)
4087         network_extralibs="-lsocket"
4088         objformat="coff"
4089         enable dos_paths
4090         add_cppflags -U__STRICT_ANSI__
4091         ;;
4092     linux)
4093         enable dv1394
4094         enable section_data_rel_ro
4095         ;;
4096     irix*)
4097         target_os=irix
4098         ranlib="echo ignoring ranlib"
4099         ;;
4100     os/2*)
4101         ln_s="cp -f"
4102         objformat="aout"
4103         add_cppflags -D_GNU_SOURCE
4104         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4105         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4106         LIBSUF="_s.a"
4107         SLIBPREF=""
4108         SLIBSUF=".dll"
4109         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4110         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4111         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4112             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4113             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4114             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4115             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4116         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4117             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4118         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4119         enable dos_paths
4120         ;;
4121     gnu/kfreebsd)
4122         add_cppflags -D_BSD_SOURCE
4123         ;;
4124     gnu)
4125         ;;
4126     qnx)
4127         add_cppflags -D_QNX_SOURCE
4128         network_extralibs="-lsocket"
4129         ;;
4130     symbian)
4131         SLIBSUF=".dll"
4132         enable dos_paths
4133         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4134         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4135         add_ldflags -Wl,--target1-abs,--no-undefined \
4136                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4137                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4138         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4139                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4140                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4141         ;;
4142     osf1)
4143         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4144         ;;
4145     minix)
4146         ;;
4147     none)
4148         ;;
4149     *)
4150         die "Unknown OS '$target_os'."
4151         ;;
4152 esac
4153
4154 # determine libc flavour
4155
4156 probe_libc(){
4157     pfx=$1
4158     pfx_no_=${pfx%_}
4159     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4160     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4161         eval ${pfx}libc_type=uclibc
4162         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4163     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4164         eval ${pfx}libc_type=glibc
4165         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4166     # MinGW headers can be installed on Cygwin, so check for newlib first.
4167     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4168         eval ${pfx}libc_type=newlib
4169         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4170     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4171     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4172         eval ${pfx}libc_type=mingw64
4173         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4174         eval test \$${pfx_no_}cc_type = "gcc" &&
4175             add_${pfx}cppflags -D__printf__=__gnu_printf__
4176     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4177          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4178         eval ${pfx}libc_type=mingw32
4179         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4180             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4181             die "ERROR: MinGW32 runtime version must be >= 3.15."
4182         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4183         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4184             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4185         check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4186             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4187         eval test \$${pfx_no_}cc_type = "gcc" &&
4188             add_${pfx}cppflags -D__printf__=__gnu_printf__
4189     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4190         eval ${pfx}libc_type=msvcrt
4191         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4192             if [ "$pfx" = host_ ]; then
4193                 add_host_cppflags -Dsnprintf=_snprintf
4194             else
4195                 add_compat strtod.o strtod=avpriv_strtod
4196                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4197                                              _snprintf=avpriv_snprintf  \
4198                                              vsnprintf=avpriv_vsnprintf
4199             fi
4200         fi
4201         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4202         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4203         # 0x601 by default unless something else is set by the user.
4204         # This can easily lead to us detecting functions only present
4205         # in such new versions and producing binaries requiring windows 7.0.
4206         # Therefore explicitly set the default to XP unless the user has
4207         # set something else on the command line.
4208         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4209         # family. For these cases, configure is free to use any functions
4210         # found in the SDK headers by default. (Alternatively, we could force
4211         # _WIN32_WINNT to 0x0602 in that case.)
4212         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4213             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4214 #ifdef WINAPI_FAMILY
4215 #include <winapifamily.h>
4216 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4217 #error not desktop
4218 #endif
4219 #endif
4220 EOF
4221         if [ "$pfx" = "" ]; then
4222             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4223         fi
4224     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4225         eval ${pfx}libc_type=klibc
4226     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4227         eval ${pfx}libc_type=bionic
4228     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4229         eval ${pfx}libc_type=solaris
4230         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4231     else
4232         eval ${pfx}libc_type=default
4233         add_${pfx}cppflags -D_DEFAULT_SOURCE
4234     fi
4235 }
4236
4237 probe_libc
4238 test -n "$libc_type" && enable libc_$libc_type
4239 probe_libc host_
4240 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4241
4242 # hacks for compiler/libc/os combinations
4243
4244 case $libc_type in
4245     bionic)
4246         add_compat strtod.o strtod=avpriv_strtod
4247         ;;
4248     glibc)
4249         if enabled tms470; then
4250             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4251             add_cppflags -D__USER_LABEL_PREFIX__=
4252             add_cppflags -D__builtin_memset=memset
4253             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4254             add_cflags   -pds=48    # incompatible redefinition of macro
4255         elif enabled ccc; then
4256             add_ldflags -Wl,-z,now  # calls to libots crash without this
4257         fi
4258         ;;
4259 esac
4260
4261 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4262     add_cppflags '-I\$(SRC_PATH)/compat/float'
4263
4264 esc(){
4265     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4266 }
4267
4268 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4269
4270 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4271
4272 set_default $PATHS_LIST
4273 set_default nm
4274
4275 # we need to build at least one lib type
4276 if ! enabled_any static shared; then
4277     cat <<EOF
4278 At least one library type must be built.
4279 Specify --enable-static to build the static libraries or --enable-shared to
4280 build the shared libraries as well. To only build the shared libraries specify
4281 --disable-static in addition to --enable-shared.
4282 EOF
4283     exit 1
4284 fi
4285
4286 disabled optimizations || check_cflags -fomit-frame-pointer
4287
4288 enable_weak_pic() {
4289     disabled pic && return
4290     enable pic
4291     add_cppflags -DPIC
4292     case "$target_os" in
4293     mingw*|cygwin*)
4294         ;;
4295     *)
4296         add_cflags -fPIC
4297         ;;
4298     esac
4299     add_asflags  -fPIC
4300 }
4301
4302 enabled pic && enable_weak_pic
4303
4304 check_cc <<EOF || die "Symbol mangling check failed."
4305 int ff_extern;
4306 EOF
4307 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4308 extern_prefix=${sym%%ff_extern*}
4309
4310 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4311
4312 _restrict=
4313 for restrict_keyword in restrict __restrict__ __restrict; do
4314     check_cc <<EOF && _restrict=$restrict_keyword && break
4315 void foo(char * $restrict_keyword p);
4316 EOF
4317 done
4318
4319 check_cc <<EOF && enable pragma_deprecated
4320 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4321 EOF
4322
4323 check_cc <<EOF && enable attribute_packed
4324 struct { int x; } __attribute__((packed)) x;
4325 EOF
4326
4327 check_cc <<EOF && enable attribute_may_alias
4328 union { int x; } __attribute__((may_alias)) x;
4329 EOF
4330
4331 check_cc <<EOF || die "endian test failed"
4332 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4333 EOF
4334 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4335
4336 check_gas() {
4337     log "check_gas using '$as' as AS"
4338     # :vararg is used on aarch64, arm and ppc altivec
4339     check_as <<EOF || return 1
4340 .macro m n, y:vararg=0
4341 \n: .int \y
4342 .endm
4343 m x
4344 EOF
4345     # .altmacro is only used in arm asm
4346     ! enabled arm || check_as <<EOF || return 1
4347 .altmacro
4348 EOF
4349     enable gnu_as
4350     return 0
4351 }
4352
4353 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4354     nogas=:
4355     enabled_any arm aarch64 && nogas=die
4356     enabled_all ppc altivec && nogas=warn
4357     as_noop=-v
4358
4359     case $as_type in
4360         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4361         gcc)  gaspp_as_type=gas ;;
4362         *)    gaspp_as_type=$as_type ;;
4363     esac
4364
4365     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4366
4367     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4368         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4369
4370     if ! check_gas ; then
4371         as=${gas:=$as}
4372         check_gas || \
4373             $nogas "GNU assembler not found, install/update gas-preprocessor"
4374     fi
4375
4376     check_as <<EOF && enable as_func
4377 .func test
4378 .endfunc
4379 EOF
4380 fi
4381
4382 check_inline_asm inline_asm_labels '"1:\n"'
4383
4384 if enabled aarch64; then
4385     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4386     # internal assembler in clang 3.3 does not support this instruction
4387     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4388     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4389
4390     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4391
4392 elif enabled alpha; then
4393
4394     check_cflags -mieee
4395
4396 elif enabled arm; then
4397
4398     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4399     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4400     enabled thumb && check_cflags -mthumb || check_cflags -marm
4401
4402     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4403         enable vfp_args
4404     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4405         enable vfp_args
4406     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4407         case "${cross_prefix:-$cc}" in
4408             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4409             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4410 __asm__ (".eabi_attribute 28, 1");
4411 int main(void) { return 0; }
4412 EOF
4413         esac
4414         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4415     fi
4416
4417     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4418     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4419     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4420     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4421     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4422     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4423
4424     [ $target_os = linux ] || [ $target_os = android ] ||
4425         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4426             $ARCH_EXT_LIST_ARM
4427
4428     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4429
4430     check_as <<EOF && enable as_arch_directive
4431 .arch armv7-a
4432 EOF
4433     check_as <<EOF && enable as_fpu_directive
4434 .fpu neon
4435 EOF
4436
4437     # llvm's integrated assembler supports .object_arch from llvm 3.5
4438     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4439         check_as <<EOF && enable as_object_arch
4440 .object_arch armv4
4441 EOF
4442
4443     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4444
4445 elif enabled mips; then
4446
4447     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4448
4449     # make sure that only an instruction set is enabled
4450     disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4451
4452     if enabled mips64; then
4453         check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4454             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4455                 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4456     else
4457         check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4458             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4459                 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4460     fi
4461
4462 elif enabled parisc; then
4463
4464     if enabled gcc; then
4465         case $($cc -dumpversion) in
4466             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4467         esac
4468     fi
4469
4470 elif enabled ppc; then
4471
4472     enable local_aligned_8 local_aligned_16 local_aligned_32
4473
4474     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4475     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4476     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4477     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4478
4479     if enabled altivec; then
4480         check_cflags -maltivec -mabi=altivec
4481
4482         # check if our compiler supports Motorola AltiVec C API
4483         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4484                                  vector signed int v2 = (vector signed int) { 1 };
4485                                  v1 = vec_add(v1, v2);" ||
4486             disable altivec
4487
4488         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4489     fi
4490
4491     if enabled vsx; then
4492         check_cflags -mvsx &&
4493         check_code cc altivec.h "int v[4] = { 0 };
4494                                  vector signed int v1 = vec_vsx_ld(0, v);" ||
4495             disable vsx
4496     fi
4497
4498     if enabled power8; then
4499         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4500     fi
4501
4502 elif enabled x86; then
4503
4504     check_builtin rdtsc    intrin.h   "__rdtsc()"
4505     check_builtin mm_empty mmintrin.h "_mm_empty()"
4506
4507     enable local_aligned_8 local_aligned_16 local_aligned_32
4508
4509     # check whether EBP is available on x86
4510     # As 'i' is stored on the stack, this program will crash
4511     # if the base pointer is used to access it because the
4512     # base pointer is cleared in the inline assembly code.
4513     check_exec_crash <<EOF && enable ebp_available
4514 volatile int i=0;
4515 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4516 return i;
4517 EOF
4518
4519     # check whether EBX is available on x86
4520     check_inline_asm ebx_available '""::"b"(0)' &&
4521         check_inline_asm ebx_available '"":::"%ebx"'
4522
4523     # check whether xmm clobbers are supported
4524     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4525
4526     # check whether binutils is new enough to compile SSSE3/MMXEXT
4527     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4528     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4529
4530     probe_x86asm(){
4531         x86asmexe_probe=$1
4532         if check_cmd $x86asmexe_probe -v; then
4533             x86asmexe=$x86asmexe_probe
4534             x86asm_type=nasm
4535             x86asm_debug="-g -F dwarf"
4536             X86ASMDEP=
4537             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4538         elif check_cmd $x86asmexe_probe --version; then
4539             x86asmexe=$x86asmexe_probe
4540             x86asm_type=yasm
4541             x86asm_debug="-g dwarf2"
4542             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4543             X86ASM_DEPFLAGS=
4544         fi
4545         check_x86asm "movbe ecx, [5]" && enable x86asm
4546     }
4547
4548     if ! disabled_any asm mmx x86asm; then
4549         disable x86asm
4550         for program in $x86asmexe nasm yasm; do
4551             probe_x86asm $program && break
4552         done
4553         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4554         X86ASMFLAGS="-f $objformat"
4555         enabled pic               && append X86ASMFLAGS "-DPIC"
4556         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
4557         case "$objformat" in
4558             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4559         esac
4560
4561         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4562         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4563         check_x86asm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4564         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4565         check_x86asm "CPU amdnop"                      || disable cpunop
4566     fi
4567
4568     case "$cpu" in
4569         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4570             disable fast_clz
4571         ;;
4572     esac
4573
4574 fi
4575
4576 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4577
4578 check_ldflags -Wl,--as-needed
4579
4580 if ! disabled network; then
4581     check_func getaddrinfo $network_extralibs
4582     check_func inet_aton $network_extralibs
4583
4584     check_type netdb.h "struct addrinfo"
4585     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4586     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4587     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4588     check_type poll.h "struct pollfd"
4589     check_type netinet/sctp.h "struct sctp_event_subscribe"
4590     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4591     check_type netinet/in.h "struct sockaddr_in6"
4592     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4593     check_type "sys/types.h sys/socket.h" socklen_t
4594
4595     # Prefer arpa/inet.h over winsock2
4596     if check_header arpa/inet.h ; then
4597         check_func closesocket
4598     elif check_header winsock2.h ; then
4599         check_func_headers winsock2.h closesocket -lws2 &&
4600             network_extralibs="-lws2" ||
4601         { check_func_headers winsock2.h closesocket -lws2_32 &&
4602             network_extralibs="-lws2_32"; } || disable winsock2_h network
4603         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4604
4605         check_type ws2tcpip.h socklen_t
4606         check_type ws2tcpip.h "struct addrinfo"
4607         check_type ws2tcpip.h "struct group_source_req"
4608         check_type ws2tcpip.h "struct ip_mreq_source"
4609         check_type ws2tcpip.h "struct ipv6_mreq"
4610         check_type winsock2.h "struct pollfd"
4611         check_struct winsock2.h "struct sockaddr" sa_len
4612         check_type ws2tcpip.h "struct sockaddr_in6"
4613         check_type ws2tcpip.h "struct sockaddr_storage"
4614     else
4615         disable network
4616     fi
4617 fi
4618
4619 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4620 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4621 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4622 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4623
4624 case "$custom_allocator" in
4625     jemalloc)
4626         # jemalloc by default does not use a prefix
4627         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4628     ;;
4629     tcmalloc)
4630         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4631         malloc_prefix=tc_
4632     ;;
4633 esac
4634
4635 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4636 check_func  ${malloc_prefix}memalign            && enable memalign
4637 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4638
4639 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4640     { check_lib clock_gettime time.h clock_gettime ||
4641       check_lib clock_gettime time.h clock_gettime -lrt; }
4642
4643 check_func  fcntl
4644 check_func  fork
4645 check_func  gethrtime
4646 check_func  getopt
4647 check_func  getrusage
4648 check_func  gettimeofday
4649 check_func  gmtime_r
4650 check_func  isatty
4651 check_func  localtime_r
4652 check_func  mach_absolute_time
4653 check_func  mkstemp
4654 check_func  mmap
4655 check_func  mprotect
4656 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4657 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4658 check_func  sched_getaffinity
4659 check_func  setrlimit
4660 check_func  strerror_r
4661 check_func  sysconf
4662 check_func  sysctl
4663 check_func  usleep
4664
4665 check_func_headers io.h setmode
4666 check_func_headers stdlib.h getenv
4667
4668 check_func_headers windows.h GetProcessAffinityMask
4669 check_func_headers windows.h GetProcessTimes
4670 check_func_headers windows.h GetSystemTimeAsFileTime
4671 check_func_headers windows.h LoadLibrary
4672 check_func_headers windows.h MapViewOfFile
4673 check_func_headers windows.h SetConsoleTextAttribute
4674 check_func_headers windows.h Sleep
4675 check_func_headers windows.h VirtualAlloc
4676 check_struct windows.h "CONDITION_VARIABLE" Ptr
4677
4678 check_header d3d11.h
4679 check_header direct.h
4680 check_header dlfcn.h
4681 check_header dxgidebug.h
4682 check_header dxva.h
4683 check_header dxva2api.h
4684 check_header io.h
4685 check_header mach/mach_time.h
4686 check_header malloc.h
4687 check_header poll.h
4688 check_header sys/mman.h
4689 check_header sys/param.h
4690 check_header sys/resource.h
4691 check_header sys/select.h
4692 check_header sys/time.h
4693 check_header sys/un.h
4694 check_header unistd.h
4695 check_header valgrind/valgrind.h
4696 check_header VideoDecodeAcceleration/VDADecoder.h
4697 check_header windows.h
4698
4699 # it seems there are versions of clang in some distros that try to use the
4700 # gcc headers, which explodes for stdatomic
4701 # so we also check that atomics actually work here
4702 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4703
4704 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
4705 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
4706 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
4707 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
4708
4709 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4710
4711 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
4712 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
4713 check_struct "cuviddec.h" "CUVIDDECODECREATEINFO" bitDepthMinus8
4714
4715 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4716 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4717 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4718
4719 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4720 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4721 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4722 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4723 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4724 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4725 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4726 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
4727 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
4728
4729 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4730
4731 if ! disabled w32threads && ! enabled pthreads; then
4732     check_lib w32threads "windows.h process.h" _beginthreadex
4733 fi
4734
4735 # check for some common methods of building with pthread support
4736 # do this before the optional library checks as some of them require pthreads
4737 if ! disabled pthreads && ! enabled w32threads; then
4738     if check_lib pthreads pthread.h pthread_join -pthread; then
4739         add_cflags -pthread
4740     elif check_lib pthreads pthread.h pthread_join -pthreads; then
4741         add_cflags -pthreads
4742     elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4743         :
4744     elif check_lib pthreads pthread.h pthread_join -lpthread; then
4745         :
4746     elif check_func pthread_join; then
4747         enable pthreads
4748     fi
4749 fi
4750
4751 enabled pthreads &&
4752     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4753
4754 disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
4755 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4756
4757 # On some systems dynamic loading requires no extra linker flags
4758 check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4759
4760 check_lib libm math.h sin -lm
4761
4762 atan2f_args=2
4763 ldexpf_args=2
4764 powf_args=2
4765
4766 for func in $MATH_FUNCS; do
4767     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4768 done
4769
4770 # these are off by default, so fail if requested and not available
4771 enabled avisynth          && require_header avisynth/avisynth_c.h
4772 enabled avxsynth          && require_header avxsynth/avxsynth_c.h
4773 enabled cuda              && require cuda cuda.h cuInit -lcuda
4774 enabled cuvid             && require cuvid cuviddec.h cuvidCreateDecoder -lnvcuvid
4775 enabled frei0r            && require_header frei0r.h
4776 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
4777 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4778 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4779 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4780 enabled libfaac           && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4781 enabled libfdk_aac        && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4782 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4783 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4784 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4785                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
4786                                done || die "ERROR: libgsm not found"; }
4787 enabled libhdcd           && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4788 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4789 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4790 enabled libmfx            && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4791 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4792 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4793 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4794 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4795 enabled libopencv         && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4796 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4797 enabled libopenjpeg       && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4798                                require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4799 enabled libopus           && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4800 enabled libpulse          && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4801 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4802 enabled libschroedinger   && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4803 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
4804 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex
4805 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4806 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4807 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4808 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4809 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4810 enabled libvpx            && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4811                              { enabled libvpx_vp8_decoder &&
4812                                    check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4813                                enabled libvpx_vp8_encoder &&
4814                                    check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4815                                enabled libvpx_vp9_decoder &&
4816                                    check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4817                                enabled libvpx_vp9_encoder &&
4818                                    check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx
4819                                disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder &&
4820                                    die "libvpx enabled but no supported decoders/encoders found"
4821                              }