lavc: Add trace_headers 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 mjpeg2jpeg_bsf_select="jpegtables"
2327 trace_headers_bsf_select="cbs_h264 cbs_h265"
2328
2329 # external libraries
2330 avisynth_deps="LoadLibrary"
2331 avxsynth_deps="libdl"
2332 avisynth_demuxer_deps_any="avisynth avxsynth"
2333 avisynth_demuxer_select="riffdec"
2334 libdcadec_decoder_deps="libdcadec"
2335 libfaac_encoder_deps="libfaac"
2336 libfaac_encoder_select="audio_frame_queue"
2337 libfdk_aac_decoder_deps="libfdk_aac"
2338 libfdk_aac_encoder_deps="libfdk_aac"
2339 libfdk_aac_encoder_select="audio_frame_queue"
2340 libgsm_decoder_deps="libgsm"
2341 libgsm_encoder_deps="libgsm"
2342 libgsm_ms_decoder_deps="libgsm"
2343 libgsm_ms_encoder_deps="libgsm"
2344 libilbc_decoder_deps="libilbc"
2345 libilbc_encoder_deps="libilbc"
2346 libkvazaar_encoder_deps="libkvazaar"
2347 libmp3lame_encoder_deps="libmp3lame"
2348 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2349 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2350 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2351 libopencore_amrnb_encoder_select="audio_frame_queue"
2352 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2353 libopenh264_decoder_deps="libopenh264"
2354 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2355 libopenh264_encoder_deps="libopenh264"
2356 libopenjpeg_decoder_deps="libopenjpeg"
2357 libopenjpeg_encoder_deps="libopenjpeg"
2358 libopus_decoder_deps="libopus"
2359 libopus_encoder_deps="libopus"
2360 libopus_encoder_select="audio_frame_queue"
2361 libschroedinger_decoder_deps="libschroedinger"
2362 libschroedinger_encoder_deps="libschroedinger"
2363 libspeex_decoder_deps="libspeex"
2364 libspeex_encoder_deps="libspeex"
2365 libspeex_encoder_select="audio_frame_queue"
2366 libtheora_encoder_deps="libtheora"
2367 libtwolame_encoder_deps="libtwolame"
2368 libvo_aacenc_encoder_deps="libvo_aacenc"
2369 libvo_aacenc_encoder_select="audio_frame_queue"
2370 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2371 libvorbis_encoder_deps="libvorbis"
2372 libvorbis_encoder_select="audio_frame_queue"
2373 libvpx_vp8_decoder_deps="libvpx"
2374 libvpx_vp8_encoder_deps="libvpx"
2375 libvpx_vp9_decoder_deps="libvpx"
2376 libvpx_vp9_encoder_deps="libvpx"
2377 libwavpack_encoder_deps="libwavpack"
2378 libwavpack_encoder_select="audio_frame_queue"
2379 libwebp_encoder_deps="libwebp"
2380 libx262_encoder_deps="libx262"
2381 libx264_encoder_deps="libx264"
2382 libx265_encoder_deps="libx265"
2383 libxavs_encoder_deps="libxavs"
2384 libxvid_encoder_deps="libxvid mkstemp"
2385
2386 # demuxers / muxers
2387 ac3_demuxer_select="ac3_parser"
2388 asf_demuxer_select="riffdec"
2389 asf_muxer_select="riffenc"
2390 asf_stream_muxer_select="asf_muxer"
2391 avi_demuxer_select="iso_media riffdec"
2392 avi_muxer_select="riffenc"
2393 caf_demuxer_select="iso_media riffdec"
2394 dash_muxer_select="mp4_muxer"
2395 dirac_demuxer_select="dirac_parser"
2396 dv_demuxer_select="dvprofile"
2397 dv_muxer_select="dvprofile"
2398 dxa_demuxer_select="riffdec"
2399 eac3_demuxer_select="ac3_parser"
2400 f4v_muxer_select="mov_muxer"
2401 flac_demuxer_select="flac_parser"
2402 hds_muxer_select="flv_muxer"
2403 hls_muxer_select="mpegts_muxer"
2404 ipod_muxer_select="mov_muxer"
2405 ismv_muxer_select="mov_muxer"
2406 matroska_audio_muxer_select="matroska_muxer"
2407 matroska_demuxer_select="iso_media riffdec"
2408 matroska_demuxer_suggest="bzlib lzo zlib"
2409 matroska_muxer_select="iso_media riffenc"
2410 mmf_muxer_select="riffenc"
2411 mov_demuxer_select="iso_media riffdec"
2412 mov_demuxer_suggest="zlib"
2413 mov_muxer_select="iso_media riffenc rtpenc_chain"
2414 mp3_demuxer_select="mpegaudio_parser"
2415 mp3_muxer_select="mpegaudioheader"
2416 mp4_muxer_select="mov_muxer"
2417 mpegts_demuxer_select="iso_media"
2418 mpegts_muxer_select="adts_muxer latm_muxer"
2419 mpegtsraw_demuxer_select="mpegts_demuxer"
2420 mxf_d10_muxer_select="mxf_muxer"
2421 nut_muxer_select="riffenc"
2422 nuv_demuxer_select="riffdec"
2423 oga_muxer_select="ogg_muxer"
2424 ogg_demuxer_select="dirac_parse"
2425 opus_muxer_select="ogg_muxer"
2426 psp_muxer_select="mov_muxer"
2427 rtp_demuxer_select="sdp_demuxer"
2428 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2429 rtsp_demuxer_select="http_protocol rtpdec"
2430 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2431 sap_demuxer_select="sdp_demuxer"
2432 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2433 sdp_demuxer_select="rtpdec"
2434 smoothstreaming_muxer_select="ismv_muxer"
2435 spdif_demuxer_select="adts_header"
2436 spdif_muxer_select="adts_header"
2437 spx_muxer_select="ogg_muxer"
2438 swf_demuxer_suggest="zlib"
2439 tak_demuxer_select="tak_parser"
2440 tg2_muxer_select="mov_muxer"
2441 tgp_muxer_select="mov_muxer"
2442 w64_demuxer_select="wav_demuxer"
2443 wav_demuxer_select="riffdec"
2444 wav_muxer_select="riffenc"
2445 webm_muxer_select="iso_media riffenc"
2446 wtv_demuxer_select="mpegts_demuxer riffdec"
2447 xmv_demuxer_select="riffdec"
2448 xwma_demuxer_select="riffdec"
2449
2450 # indevs / outdevs
2451 alsa_indev_deps="alsa"
2452 alsa_outdev_deps="alsa"
2453 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2454 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2455 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2456 dv1394_indev_deps="dv1394"
2457 dv1394_indev_select="dv_demuxer"
2458 fbdev_indev_deps="linux_fb_h"
2459 jack_indev_deps="libjack"
2460 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2461 libcdio_indev_deps="libcdio"
2462 libdc1394_indev_deps="libdc1394"
2463 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2464 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2465 pulse_indev_deps="libpulse"
2466 sndio_indev_deps="sndio"
2467 sndio_outdev_deps="sndio"
2468 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2469 vfwcap_indev_deps="vfw32 vfwcap_defines"
2470 xcbgrab_indev_deps="libxcb libxcb_shape"
2471 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2472
2473 # protocols
2474 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2475 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2476 ffrtmpcrypt_protocol_select="tcp_protocol"
2477 ffrtmphttp_protocol_conflict="librtmp_protocol"
2478 ffrtmphttp_protocol_select="http_protocol"
2479 gopher_protocol_select="network"
2480 http_protocol_select="tcp_protocol"
2481 http_protocol_suggest="zlib"
2482 httpproxy_protocol_select="tcp_protocol"
2483 httpproxy_protocol_suggest="zlib"
2484 https_protocol_select="tls_protocol"
2485 https_protocol_suggest="zlib"
2486 icecast_protocol_select="http_protocol"
2487 librtmp_protocol_deps="librtmp"
2488 librtmpe_protocol_deps="librtmp"
2489 librtmps_protocol_deps="librtmp"
2490 librtmpt_protocol_deps="librtmp"
2491 librtmpte_protocol_deps="librtmp"
2492 mmsh_protocol_select="http_protocol"
2493 mmst_protocol_select="network"
2494 rtmp_protocol_conflict="librtmp_protocol"
2495 rtmp_protocol_select="tcp_protocol"
2496 rtmp_protocol_suggest="zlib"
2497 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2498 rtmpe_protocol_suggest="zlib"
2499 rtmps_protocol_conflict="librtmp_protocol"
2500 rtmps_protocol_select="tls_protocol"
2501 rtmps_protocol_suggest="zlib"
2502 rtmpt_protocol_select="ffrtmphttp_protocol"
2503 rtmpt_protocol_suggest="zlib"
2504 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2505 rtmpte_protocol_suggest="zlib"
2506 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2507 rtmpts_protocol_suggest="zlib"
2508 rtp_protocol_select="udp_protocol"
2509 sctp_protocol_deps="struct_sctp_event_subscribe"
2510 sctp_protocol_select="network"
2511 srtp_protocol_select="rtp_protocol srtp"
2512 tcp_protocol_select="network"
2513 tls_protocol_deps_any="gnutls openssl"
2514 tls_protocol_select="tcp_protocol"
2515 udp_protocol_select="network"
2516 unix_protocol_deps="sys_un_h"
2517 unix_protocol_select="network"
2518
2519 # filters
2520 asyncts_filter_deps="avresample"
2521 blackframe_filter_deps="gpl"
2522 boxblur_filter_deps="gpl"
2523 bs2b_filter_deps="libbs2b"
2524 cropdetect_filter_deps="gpl"
2525 deinterlace_qsv_filter_deps="libmfx"
2526 deinterlace_vaapi_filter_deps="vaapi"
2527 delogo_filter_deps="gpl"
2528 drawtext_filter_deps="libfreetype"
2529 drawtext_filter_suggest="libfontconfig"
2530 frei0r_filter_deps="frei0r libdl"
2531 frei0r_src_filter_deps="frei0r libdl"
2532 hdcd_filter_deps="libhdcd"
2533 hqdn3d_filter_deps="gpl"
2534 interlace_filter_deps="gpl"
2535 movie_filter_deps="avcodec avformat"
2536 ocv_filter_deps="libopencv"
2537 resample_filter_deps="avresample"
2538 scale_filter_deps="swscale"
2539 scale_qsv_filter_deps="libmfx"
2540 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2541
2542 # examples
2543 decode_audio_example_deps="avcodec avutil"
2544 decode_video_example_deps="avcodec avutil"
2545 encode_audio_example_deps="avcodec avutil"
2546 encode_video_example_deps="avcodec avutil"
2547 filter_audio_example_deps="avfilter avutil"
2548 metadata_example_deps="avformat avutil"
2549 output_example_deps="avcodec avformat avresample avutil swscale"
2550 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2551 transcode_aac_example_deps="avcodec avformat avresample"
2552
2553 # EXTRALIBS_LIST
2554 cpu_init_extralibs="pthreads_extralibs"
2555 cws2fws_extralibs="zlib_extralibs"
2556
2557 # libraries, in linking order
2558 avcodec_deps="avutil"
2559 avcodec_select="null_bsf"
2560 avdevice_deps="avformat avcodec avutil"
2561 avfilter_deps="avutil"
2562 avformat_deps="avcodec avutil"
2563 avformat_suggest="network"
2564 avresample_deps="avutil"
2565 swscale_deps="avutil"
2566
2567 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2568 avdevice_extralibs="libm_extralibs"
2569 avformat_extralibs="libm_extralibs"
2570 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2571 avresample_extralibs="libm_extralibs"
2572 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"
2573 swscale_extralibs="libm_extralibs"
2574
2575 # programs
2576 avconv_deps="avcodec avfilter avformat avresample swscale"
2577 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2578                fps_filter null_filter resample_filter scale_filter
2579                trim_filter"
2580 avconv_suggest="psapi shell32"
2581 avplay_deps="avcodec avfilter avformat avresample sdl"
2582 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2583 avplay_suggest="shell32"
2584 avprobe_deps="avcodec avformat"
2585 avprobe_suggest="shell32"
2586
2587 # documentation
2588 pod2man_deps="doc"
2589 texi2html_deps="doc"
2590
2591 # default parameters
2592
2593 logfile="avbuild/config.log"
2594
2595 # installation paths
2596 prefix_default="/usr/local"
2597 bindir_default='${prefix}/bin'
2598 datadir_default='${prefix}/share/avconv'
2599 docdir_default='${prefix}/share/doc/libav'
2600 incdir_default='${prefix}/include'
2601 libdir_default='${prefix}/lib'
2602 mandir_default='${prefix}/share/man'
2603 shlibdir_default="$libdir_default"
2604
2605 # toolchain
2606 ar_default="ar"
2607 cc_default="gcc"
2608 host_cc_default="gcc"
2609 x86asmexe_default="nasm"
2610 ln_s="ln -s -f"
2611 nm_default="nm -g"
2612 pkg_config_default=pkg-config
2613 ranlib="ranlib"
2614 strip="strip"
2615 version_script='--version-script'
2616
2617 # machine
2618 arch_default=$(uname -m)
2619 cpu="generic"
2620 intrinsics="none"
2621
2622 # OS
2623 target_os_default=$(tolower $(uname -s))
2624 host_os=$target_os_default
2625
2626 # configurable options
2627 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2628
2629 enable asm
2630 enable debug
2631 enable doc
2632 enable faan faandct faanidct
2633 enable optimizations
2634 enable safe_bitstream_reader
2635 enable static
2636 enable swscale_alpha
2637 enable valgrind_backtrace
2638
2639 # By default, enable only those hwaccels that have no external dependencies.
2640 enable d3d11va dxva2 vda vdpau
2641
2642 # internal components are enabled by default
2643 enable $EXTRALIBS_LIST
2644
2645 # Avoid external, non-system, libraries getting enabled by dependency resolution
2646 disable $EXTERNAL_LIBRARY_LIST
2647
2648 # build settings
2649 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2650 LIBPREF="lib"
2651 LIBSUF=".a"
2652 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2653 SLIBPREF="lib"
2654 SLIBSUF=".so"
2655 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2656 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2657 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2658 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2659 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2660 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2661 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2662
2663 asflags_filter=echo
2664 cflags_filter=echo
2665 ldflags_filter=echo
2666
2667 AS_C='-c'
2668 AS_O='-o $@'
2669 CC_C='-c'
2670 CC_E='-E -o $@'
2671 CC_O='-o $@'
2672 OBJCC_C='-c'
2673 OBJCC_E='-E -o $@'
2674 OBJCC_O='-o $@'
2675 X86ASM_O='-o $@'
2676 LD_O='-o $@'
2677 LD_LIB='-l%'
2678 LD_PATH='-L'
2679 HOSTCC_C='-c'
2680 HOSTCC_E='-E -o $@'
2681 HOSTCC_O='-o $@'
2682 HOSTLD_O='-o $@'
2683
2684 host_extralibs='-lm'
2685 host_cflags_filter=echo
2686 host_ldflags_filter=echo
2687
2688 target_path='$(CURDIR)'
2689
2690 # since the object filename is not given with the -MM flag, the compiler
2691 # is only able to print the basename, and we must add the path ourselves
2692 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2693 DEPFLAGS='-MM'
2694
2695 mkdir -p avbuild
2696
2697 # find source path
2698 if test -f configure; then
2699     source_path=.
2700 else
2701     source_path=$(cd $(dirname "$0"); pwd)
2702     echo "$source_path" | grep -q '[[:blank:]]' &&
2703         die "Out of tree builds are impossible with whitespace in source path."
2704     test -e "$source_path/config.h" &&
2705         die "Out of tree builds are impossible with config.h in source dir."
2706 fi
2707
2708 for v in "$@"; do
2709     r=${v#*=}
2710     l=${v%"$r"}
2711     r=$(sh_quote "$r")
2712     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2713 done
2714
2715 find_things(){
2716     thing=$1
2717     pattern=$2
2718     file=$source_path/$3
2719     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2720 }
2721
2722 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2723 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2724 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2725 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2726 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2727 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2728 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2729 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2730 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2731
2732 find_things_extern(){
2733     thing=$1
2734     pattern=$2
2735     file=$source_path/$3
2736     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2737 }
2738
2739 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2740 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2741
2742 AVCODEC_COMPONENTS_LIST="
2743     $BSF_LIST
2744     $DECODER_LIST
2745     $ENCODER_LIST
2746     $HWACCEL_LIST
2747     $PARSER_LIST
2748 "
2749
2750 AVDEVICE_COMPONENTS_LIST="
2751     $INDEV_LIST
2752     $OUTDEV_LIST
2753 "
2754
2755 AVFILTER_COMPONENTS_LIST="
2756     $FILTER_LIST
2757 "
2758
2759 AVFORMAT_COMPONENTS_LIST="
2760     $DEMUXER_LIST
2761     $MUXER_LIST
2762     $PROTOCOL_LIST
2763 "
2764
2765 ALL_COMPONENTS="
2766     $AVCODEC_COMPONENTS_LIST
2767     $AVDEVICE_COMPONENTS_LIST
2768     $AVFILTER_COMPONENTS_LIST
2769     $AVFORMAT_COMPONENTS_LIST
2770 "
2771
2772 for n in $COMPONENT_LIST; do
2773     v=$(toupper ${n%s})_LIST
2774     eval enable \$$v
2775     eval ${n}_if_any="\$$v"
2776 done
2777
2778 enable $ARCH_EXT_LIST
2779
2780 die_unknown(){
2781     echo "Unknown option \"$1\"."
2782     echo "See $0 --help for available options."
2783     exit 1
2784 }
2785
2786 print_3_columns() {
2787     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2788 }
2789
2790 show_list() {
2791     suffix=_$1
2792     shift
2793     echo $* | sed s/$suffix//g | print_3_columns
2794     exit 0
2795 }
2796
2797 rand_list(){
2798     IFS=', '
2799     set -- $*
2800     unset IFS
2801     for thing; do
2802         comp=${thing%:*}
2803         prob=${thing#$comp}
2804         prob=${prob#:}
2805         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2806         echo "prob ${prob:-0.5}"
2807         printf '%s\n' $comp
2808     done
2809 }
2810
2811 do_random(){
2812     action=$1
2813     shift
2814     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2815     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2816 }
2817
2818 for opt do
2819     optval="${opt#*=}"
2820     case "$opt" in
2821         --extra-ldflags=*)
2822             add_ldflags $optval
2823         ;;
2824         --extra-ldexeflags=*)
2825             add_ldexeflags $optval
2826         ;;
2827         --extra-ldsoflags=*)
2828             add_ldsoflags $optval
2829         ;;
2830         --extra-libs=*)
2831             add_extralibs $optval
2832         ;;
2833         --disable-devices)
2834             disable $INDEV_LIST $OUTDEV_LIST
2835         ;;
2836         --enable-debug=*)
2837             debuglevel="$optval"
2838         ;;
2839         --disable-programs)
2840             disable $PROGRAM_LIST
2841         ;;
2842         --disable-everything)
2843             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2844         ;;
2845         --disable-all)
2846             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2847             disable $LIBRARY_LIST $PROGRAM_LIST doc
2848         ;;
2849         --enable-random|--disable-random)
2850             action=${opt%%-random}
2851             do_random ${action#--} $COMPONENT_LIST
2852         ;;
2853         --enable-random=*|--disable-random=*)
2854             action=${opt%%-random=*}
2855             do_random ${action#--} $optval
2856         ;;
2857         --enable-*=*|--disable-*=*)
2858             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2859             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2860             eval list=\$$(toupper $thing)_LIST
2861             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2862             $action $(filter "$name" $list)
2863         ;;
2864         --enable-avserver|--disable-avserver*)
2865             warn "avserver has been removed, the ${opt} option is only"\
2866                  "provided for compatibility and will be removed in the future"
2867         ;;
2868         --enable-yasm|--disable-yasm)
2869             warn "The ${opt} option is only provided for compatibility and will be\n"\
2870                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2871             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2872         ;;
2873         --enable-?*|--disable-?*)
2874             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2875             if is_in $option $COMPONENT_LIST; then
2876                 test $action = disable && action=unset
2877                 eval $action \$$(toupper ${option%s})_LIST
2878             elif is_in $option $CMDLINE_SELECT; then
2879                 $action $option
2880             else
2881                 die_unknown $opt
2882             fi
2883         ;;
2884         --list-*)
2885             NAME="${opt#--list-}"
2886             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2887             NAME=${NAME%s}
2888             eval show_list $NAME \$$(toupper $NAME)_LIST
2889         ;;
2890         --help|-h) show_help
2891         ;;
2892         --quiet|-q) quiet=yes
2893         ;;
2894         *)
2895             optname="${opt%%=*}"
2896             optname="${optname#--}"
2897             optname=$(echo "$optname" | sed 's/-/_/g')
2898             if is_in $optname $CMDLINE_SET; then
2899                 eval $optname='$optval'
2900             elif is_in $optname $CMDLINE_APPEND; then
2901                 append $optname "$optval"
2902             else
2903                 die_unknown $opt
2904             fi
2905         ;;
2906     esac
2907 done
2908
2909 for e in $env; do
2910     eval "export $e"
2911 done
2912
2913 disabled logging && logfile=/dev/null
2914
2915 # Die early if licensing-related configure options are incompatible.
2916 die_license_disabled() {
2917     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2918 }
2919
2920 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2921 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2922 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2923
2924 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2925
2926 enabled_all gnutls openssl &&
2927     die "GnuTLS and OpenSSL must not be enabled at the same time."
2928
2929 # Disable all the library-specific components if the library itself
2930 # is disabled, see AVCODEC_LIST and following _LIST variables.
2931
2932 disable_components(){
2933     disabled ${1} && disable $(
2934         eval components="\$$(toupper ${1})_COMPONENTS"
2935         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2936     )
2937 }
2938
2939 map 'disable_components $v' $LIBRARY_LIST
2940
2941 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2942 set >> $logfile
2943
2944 case "$toolchain" in
2945     *-asan)
2946         cc_default="${toolchain%-asan}"
2947         add_cflags  -fsanitize=address
2948         add_ldflags -fsanitize=address
2949     ;;
2950     *-msan)
2951         cc_default="${toolchain%-msan}"
2952         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2953         add_ldflags -fsanitize=memory
2954     ;;
2955     *-tsan)
2956         cc_default="${toolchain%-tsan}"
2957         add_cflags  -fsanitize=thread -fPIE
2958         add_ldflags -fsanitize=thread -pie
2959         case "$toolchain" in
2960             gcc-tsan)
2961                 add_cflags  -fPIC
2962                 add_ldflags -fPIC
2963                 ;;
2964         esac
2965     ;;
2966     *-usan)
2967         cc_default="${toolchain%-usan}"
2968         add_cflags  -fsanitize=undefined
2969         add_ldflags -fsanitize=undefined
2970         case "$toolchain" in
2971             clang-usan)
2972                 add_cflags -O1
2973                 ;;
2974         esac
2975     ;;
2976     valgrind-*)
2977         target_exec_default="valgrind"
2978         case "$toolchain" in
2979             valgrind-massif)
2980                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2981                 ;;
2982             valgrind-memcheck)
2983                 target_exec_args="--track-origins=yes --leak-check=full"
2984                 ;;
2985         esac
2986     ;;
2987     msvc)
2988         # Check whether the current MSVC version needs the C99 converter.
2989         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2990         # support enough of C99 to build libav. Default to the new
2991         # behaviour if the regexp was unable to match anything, since this
2992         # successfully parses the version number of existing supported
2993         # versions that require the converter (MSVC 2010 and 2012).
2994         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2995         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2996             cc_default="cl"
2997         else
2998             cc_default="c99wrap cl"
2999         fi
3000         ld_default="$source_path/compat/windows/mslink"
3001         nm_default="dumpbin -symbols"
3002         ar_default="lib"
3003         case "$arch" in
3004         arm*)
3005             as_default="armasm"
3006             ;;
3007         esac
3008         target_os_default="win32"
3009         # Use a relative path for TMPDIR. This makes sure all the
3010         # ffconf temp files are written with a relative path, avoiding
3011         # issues with msys/win32 path conversion for MSVC parameters
3012         # such as -Fo<file> or -out:<file>.
3013         TMPDIR=.
3014     ;;
3015     icl)
3016         cc_default="icl"
3017         ld_default="xilink"
3018         nm_default="dumpbin -symbols"
3019         ar_default="xilib"
3020         target_os_default="win32"
3021         TMPDIR=.
3022     ;;
3023     gcov)
3024         add_cflags  -fprofile-arcs -ftest-coverage
3025         add_ldflags -fprofile-arcs -ftest-coverage
3026     ;;
3027     llvm-cov)
3028         add_cflags -fprofile-arcs -ftest-coverage
3029         add_ldflags --coverage
3030     ;;
3031     hardened)
3032         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3033         add_cflags   -fno-strict-overflow -fstack-protector-all
3034         add_ldflags  -Wl,-z,relro -Wl,-z,now
3035     ;;
3036     ?*)
3037         die "Unknown toolchain $toolchain"
3038     ;;
3039 esac
3040
3041 test -n "$cross_prefix" && enable cross_compile
3042
3043 if enabled cross_compile; then
3044     test -n "$arch" && test -n "$target_os" ||
3045         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3046 fi
3047
3048 ar_default="${cross_prefix}${ar_default}"
3049 cc_default="${cross_prefix}${cc_default}"
3050 objcc_default="${cross_prefix}${objcc_default}"
3051 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3052 nm_default="${cross_prefix}${nm_default}"
3053 pkg_config_default="${cross_prefix}${pkg_config_default}"
3054 ranlib="${cross_prefix}${ranlib}"
3055 strip="${cross_prefix}${strip}"
3056
3057 sysinclude_default="${sysroot}/usr/include"
3058
3059 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3060 enabled cross_compile || host_cc_default=$cc
3061 set_default host_cc
3062
3063 if ! $pkg_config --version >/dev/null 2>&1; then
3064     warn "$pkg_config not found, library detection may fail."
3065     pkg_config=false
3066 fi
3067
3068 exesuf() {
3069     case $1 in
3070         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3071     esac
3072 }
3073
3074 EXESUF=$(exesuf $target_os)
3075 HOSTEXESUF=$(exesuf $host_os)
3076
3077 # set temporary file name
3078 : ${TMPDIR:=$TEMPDIR}
3079 : ${TMPDIR:=$TMP}
3080 : ${TMPDIR:=/tmp}
3081
3082 if ! check_cmd mktemp -u XXXXXX; then
3083     # simple replacement for missing mktemp
3084     # NOT SAFE FOR GENERAL USE
3085     mktemp(){
3086         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3087         echo "$tmpname"
3088         mkdir "$tmpname"
3089     }
3090 fi
3091
3092 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3093     die "Unable to create temporary directory in $TMPDIR."
3094
3095 tmpfile(){
3096     tmp="${AVTMPDIR}/test"$2
3097     (set -C; exec > $tmp) 2> /dev/null ||
3098         die "Unable to create temporary file in $AVTMPDIR."
3099     eval $1=$tmp
3100 }
3101
3102 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3103 trap 'exit 2' INT
3104
3105 tmpfile TMPASM .asm
3106 tmpfile TMPC   .c
3107 tmpfile TMPE   $EXESUF
3108 tmpfile TMPH   .h
3109 tmpfile TMPO   .o
3110 tmpfile TMPS   .S
3111 tmpfile TMPSH  .sh
3112 tmpfile TMPV   .ver
3113
3114 unset -f mktemp
3115
3116 chmod +x $TMPE
3117
3118 # make sure we can execute files in $TMPDIR
3119 cat > $TMPSH 2>> $logfile <<EOF
3120 #! /bin/sh
3121 EOF
3122 chmod +x $TMPSH >> $logfile 2>&1
3123 if ! $TMPSH >> $logfile 2>&1; then
3124     cat <<EOF
3125 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3126 variable to another directory and make sure that it is not mounted noexec.
3127 EOF
3128     die "Sanity test failed."
3129 fi
3130
3131 armasm_flags(){
3132     for flag; do
3133         case $flag in
3134             # Filter out MSVC cl.exe options from cflags that shouldn't
3135             # be passed to gas-preprocessor
3136             -M[TD]*)                                            ;;
3137             *)                  echo $flag                      ;;
3138         esac
3139    done
3140 }
3141
3142 ccc_flags(){
3143     for flag; do
3144         case $flag in
3145             -std=c99)           echo -c99                       ;;
3146             -mcpu=*)            echo -arch ${flag#*=}           ;;
3147             -mieee)             echo -ieee                      ;;
3148             -O*|-fast)          echo $flag                      ;;
3149             -fno-math-errno)    echo -assume nomath_errno       ;;
3150             -g)                 echo -g3                        ;;
3151             -Wall)              echo -msg_enable level2         ;;
3152             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3153             -Wl,*)              echo $flag                      ;;
3154             -f*|-W*)                                            ;;
3155             *)                  echo $flag                      ;;
3156         esac
3157    done
3158 }
3159
3160 cparser_flags(){
3161     for flag; do
3162         case $flag in
3163             -Wno-switch)             echo -Wno-switch-enum ;;
3164             -Wno-format-zero-length) ;;
3165             -Wdisabled-optimization) ;;
3166             -Wno-pointer-sign)       echo -Wno-other ;;
3167             *)                       echo $flag ;;
3168         esac
3169     done
3170 }
3171
3172 msvc_common_flags(){
3173     for flag; do
3174         case $flag in
3175             # In addition to specifying certain flags under the compiler
3176             # specific filters, they must be specified here as well or else the
3177             # generic catch all at the bottom will print the original flag.
3178             -Wall)                ;;
3179             -Wextra)              ;;
3180             -std=c99)             ;;
3181             # Common flags
3182             -fomit-frame-pointer) ;;
3183             -g)                   echo -Z7 ;;
3184             -fno-math-errno)      ;;
3185             -fno-common)          ;;
3186             -fno-signed-zeros)    ;;
3187             -fPIC)                ;;
3188             -mthumb)              ;;
3189             -march=*)             ;;
3190             -lz)                  echo zlib.lib ;;
3191             -lx264)               echo libx264.lib ;;
3192             -l*)                  echo ${flag#-l}.lib ;;
3193             -L*)                  echo -libpath:${flag#-L} ;;
3194             *)                    echo $flag ;;
3195         esac
3196     done
3197 }
3198
3199 msvc_flags(){
3200     msvc_common_flags "$@"
3201     for flag; do
3202         case $flag in
3203             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3204                                        -wd4554 ;;
3205             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3206                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3207                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3208                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3209         esac
3210     done
3211 }
3212
3213 icl_flags(){
3214     msvc_common_flags "$@"
3215     for flag; do
3216         case $flag in
3217             # Despite what Intel's documentation says -Wall, which is supported
3218             # on Windows, does enable remarks so disable them here.
3219             -Wall)                echo $flag -Qdiag-disable:remark ;;
3220             -std=c99)             echo -Qstd=c99 ;;
3221         esac
3222     done
3223 }
3224
3225 pgi_flags(){
3226     for flag; do
3227         case $flag in
3228             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3229             -fomit-frame-pointer) echo -Mnoframe ;;
3230             -g)                   echo -gopt ;;
3231             *)                    echo $flag ;;
3232         esac
3233     done
3234 }
3235
3236 suncc_flags(){
3237     for flag; do
3238         case $flag in
3239             -march=*|-mcpu=*)
3240                 case "${flag#*=}" in
3241                     native)                   echo -xtarget=native       ;;
3242                     v9|niagara)               echo -xarch=sparc          ;;
3243                     ultrasparc)               echo -xarch=sparcvis       ;;
3244                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3245                     i586|pentium)             echo -xchip=pentium        ;;
3246                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3247                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3248                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3249                     pentium4*)          echo -xtarget=pentium4           ;;
3250                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3251                     *-sse3)             echo -xarch=sse3                 ;;
3252                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3253                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3254                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3255                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3256                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3257                     k8|opteron|athlon64|athlon-fx)
3258                                                echo -xarch=sse2a         ;;
3259                     athlon*)                   echo -xarch=pentium_proa  ;;
3260                 esac
3261                 ;;
3262             -std=c99)             echo -xc99              ;;
3263             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3264             -fPIC)                echo -KPIC -xcode=pic32 ;;
3265             -W*,*)                echo $flag              ;;
3266             -f*-*|-W*|-mimpure-text)                      ;;
3267             -shared)              echo -G                 ;;
3268             *)                    echo $flag              ;;
3269         esac
3270     done
3271 }
3272
3273 tms470_flags(){
3274     for flag; do
3275         case $flag in
3276             -march=*|-mcpu=*)
3277                 case "${flag#*=}" in
3278                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3279                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3280                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3281                     armv6*|arm11*)          echo -mv=6   ;;
3282                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3283                                             echo -mv=5e  ;;
3284                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3285                 esac
3286                 ;;
3287             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3288             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3289             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3290             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3291             -msoft-float)   echo --float_support=vfplib       ;;
3292             -O[0-3]|-mf=*)  echo $flag                        ;;
3293             -g)             echo -g -mn                       ;;
3294             -pds=*)         echo $flag                        ;;
3295             -D*|-I*)        echo $flag                        ;;
3296             --gcc|--abi=*)  echo $flag                        ;;
3297             -me)            echo $flag                        ;;
3298         esac
3299     done
3300 }
3301
3302 probe_cc(){
3303     pfx=$1
3304     _cc=$2
3305
3306     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3307     unset _ld_o _ldflags _ld_lib _ld_path
3308     unset _depflags _DEPCMD _DEPFLAGS
3309     _flags_filter=echo
3310
3311     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3312         _type=llvm_gcc
3313         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3314         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3315         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3316         _cflags_speed='-O3'
3317         _cflags_size='-Os'
3318     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3319         _type=gcc
3320         gcc_version=$($_cc --version | head -n1)
3321         gcc_basever=$($_cc -dumpversion)
3322         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3323         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3324         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3325         if ! $_cc -dumpversion | grep -q '^2\.'; then
3326             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3327         fi
3328         _cflags_speed='-O3'
3329         _cflags_size='-Os'
3330     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3331         _type=icc
3332         _ident=$($_cc --version | head -n1)
3333         _depflags='-MMD'
3334         _cflags_speed='-O3'
3335         _cflags_size='-Os'
3336         _cflags_noopt='-O1'
3337     elif $_cc -v 2>&1 | grep -q xlc; then
3338         _type=xlc
3339         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3340         _cflags_speed='-O5'
3341         _cflags_size='-O5 -qcompact'
3342     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3343         _type=ccc
3344         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3345         _DEPFLAGS='-M'
3346         _cflags_speed='-fast'
3347         _cflags_size='-O1'
3348         _flags_filter=ccc_flags
3349     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3350         test -d "$sysroot" || die "No valid sysroot specified."
3351         _type=armcc
3352         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3353         armcc_conf="$PWD/armcc.conf"
3354         $_cc --arm_linux_configure                 \
3355              --arm_linux_config_file="$armcc_conf" \
3356              --configure_sysroot="$sysroot"        \
3357              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3358              die "Error creating armcc configuration file."
3359         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3360         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3361         as_default="${cross_prefix}gcc"
3362         _depflags='-MMD'
3363         _cflags_speed='-O3'
3364         _cflags_size='-Os'
3365     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3366         _type=tms470
3367         _ident=$($_cc -version | head -n1 | tr -s ' ')
3368         _flags='--gcc --abi=eabi -me'
3369         _cc_e='-ppl -fe=$@'
3370         _cc_o='-fe=$@'
3371         _depflags='-ppa -ppd=$(@:.o=.d)'
3372         _cflags_speed='-O3 -mf=5'
3373         _cflags_size='-O3 -mf=2'
3374         _flags_filter=tms470_flags
3375     elif $_cc -v 2>&1 | grep -q clang; then
3376         _type=clang
3377         _ident=$($_cc --version 2>/dev/null | head -n1)
3378         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3379         _cflags_speed='-O3'
3380         _cflags_size='-Os'
3381     elif $_cc -V 2>&1 | grep -q Sun; then
3382         _type=suncc
3383         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3384         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3385         _DEPFLAGS='-xM1 -xc99'
3386         _ldflags='-std=c99'
3387         _cflags_speed='-O5'
3388         _cflags_size='-O5 -xspace'
3389         _flags_filter=suncc_flags
3390     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3391         _type=pathscale
3392         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3393         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3394         _cflags_speed='-O2'
3395         _cflags_size='-Os'
3396         _flags_filter='filter_out -Wdisabled-optimization'
3397     elif $_cc -v 2>&1 | grep -q Open64; then
3398         _type=open64
3399         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3400         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3401         _cflags_speed='-O2'
3402         _cflags_size='-Os'
3403         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3404     elif $_cc -V 2>&1 | grep -q Portland; then
3405         _type=pgi
3406         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3407         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3408         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3409         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3410         _cflags_noopt="-O1"
3411         _flags_filter=pgi_flags
3412     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3413         _type=armasm
3414         _ident=$($_cc | head -n1)
3415         # 4509: "This form of conditional instruction is deprecated"
3416         _flags="-nologo -ignore 4509"
3417         _flags_filter=armasm_flags
3418     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3419         _type=msvc
3420         _ident=$($_cc 2>&1 | head -n1)
3421         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3422         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3423         _cflags_speed="-O2"
3424         _cflags_size="-O1"
3425         _cflags_noopt="-O1"
3426         if $_cc -nologo- 2>&1 | grep -q Linker; then
3427             _ld_o='-out:$@'
3428         else
3429             _ld_o='-Fe$@'
3430         fi
3431         _cc_o='-Fo$@'
3432         _cc_e='-P -Fi$@'
3433         _flags_filter=msvc_flags
3434         _ld_lib='lib%.a'
3435         _ld_path='-libpath:'
3436         _flags='-nologo'
3437     elif $_cc 2>&1 | grep -q Intel; then
3438         _type=icl
3439         _ident=$($_cc 2>&1 | head -n1)
3440         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3441         # Not only is O3 broken on 13.x+ but it is slower on all previous
3442         # versions (tested) as well.
3443         _cflags_speed="-O2"
3444         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3445         if $_cc 2>&1 | grep -q Linker; then
3446             _ld_o='-out:$@'
3447         else
3448             _ld_o='-Fe$@'
3449         fi
3450         _cc_o='-Fo$@'
3451         _cc_e='-P'
3452         _flags_filter=icl_flags
3453         _ld_lib='lib%.a'
3454         _ld_path='-libpath:'
3455         # -Qdiag-error to make icl error when seeing certain unknown arguments
3456         _flags='-nologo -Qdiag-error:4044,10157'
3457         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3458         # with MSVC which enables it by default.
3459         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3460     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3461         # lld can emulate multiple different linkers; in ms link.exe mode,
3462         # the -? parameter gives the help output which contains an identifyable
3463         # string, while it gives an error in other modes.
3464         _type=lld-link
3465         # The link.exe mode doesn't have a switch for getting the version,
3466         # but we can force it back to gnu mode and get the version from there.
3467         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3468         _ld_o='-out:$@'
3469         _flags_filter=msvc_flags
3470         _ld_lib='lib%.a'
3471         _ld_path='-libpath:'
3472     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3473         _type=cparser
3474         _ident=$($_cc --version | head -n1)
3475         _depflags='-MMD'
3476         _cflags_speed='-O4'
3477         _cflags_size='-O2'
3478         _flags_filter=cparser_flags
3479     fi
3480
3481     eval ${pfx}_type=\$_type
3482     eval ${pfx}_ident=\$_ident
3483 }
3484
3485 set_ccvars(){
3486     eval ${1}_C=\${_cc_c-\${${1}_C}}
3487     eval ${1}_E=\${_cc_e-\${${1}_E}}
3488     eval ${1}_O=\${_cc_o-\${${1}_O}}
3489
3490     if [ -n "$_depflags" ]; then
3491         eval ${1}_DEPFLAGS=\$_depflags
3492     else
3493         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3494         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3495         eval DEP${1}FLAGS=\$_flags
3496     fi
3497 }
3498
3499 probe_cc cc "$cc"
3500 cflags_filter=$_flags_filter
3501 cflags_speed=$_cflags_speed
3502 cflags_size=$_cflags_size
3503 cflags_noopt=$_cflags_noopt
3504 add_cflags $_flags $_cflags
3505 cc_ldflags=$_ldflags
3506 set_ccvars CC
3507
3508 probe_cc hostcc "$host_cc"
3509 host_cflags_filter=$_flags_filter
3510 host_cflags_speed=$_cflags_speed
3511 add_host_cflags  $_flags $_cflags
3512 set_ccvars HOSTCC
3513
3514 test -n "$cc_type" && enable $cc_type ||
3515     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3516
3517 : ${as_default:=$cc}
3518 : ${objcc_default:=$cc}
3519 : ${dep_cc_default:=$cc}
3520 : ${ld_default:=$cc}
3521 : ${host_ld_default:=$host_cc}
3522 set_default ar as objcc dep_cc ld host_ld
3523
3524 probe_cc as "$as"
3525 asflags_filter=$_flags_filter
3526 add_asflags $_flags $_cflags
3527 set_ccvars AS
3528
3529 probe_cc objcc "$objcc"
3530 objcflags_filter=$_flags_filter
3531 add_objcflags $_flags $_cflags
3532 set_ccvars OBJC
3533
3534 probe_cc ld "$ld"
3535 ldflags_filter=$_flags_filter
3536 add_ldflags $_flags $_ldflags
3537 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3538 LD_O=${_ld_o-$LD_O}
3539 LD_LIB=${_ld_lib-$LD_LIB}
3540 LD_PATH=${_ld_path-$LD_PATH}
3541
3542 probe_cc hostld "$host_ld"
3543 host_ldflags_filter=$_flags_filter
3544 add_host_ldflags $_flags $_ldflags
3545 HOSTLD_O=${_ld_o-$HOSTLD_O}
3546
3547 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3548     probe_cc depcc "$dep_cc"
3549     CCDEP=${_DEPCMD:-$DEPCMD}
3550     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3551     DEPCCFLAGS=$_flags
3552 fi
3553
3554 if $ar 2>&1 | grep -q Microsoft; then
3555     arflags="-nologo"
3556     ar_o='-out:$@'
3557 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3558     arflags="rq"
3559     ar_o='$@'
3560 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3561     arflags='-Xany -r -c'
3562     ar_o='$@'
3563 else
3564     arflags="rc"
3565     ar_o='$@'
3566 fi
3567
3568 add_cflags $extra_cflags
3569 add_objcflags $extra_objcflags
3570 add_asflags $extra_cflags
3571
3572 if test -n "$sysroot"; then
3573     case "$cc_type" in
3574         gcc|llvm_gcc|clang)
3575             add_cppflags --sysroot="$sysroot"
3576             add_ldflags --sysroot="$sysroot"
3577         ;;
3578         tms470)
3579             add_cppflags -I"$sysinclude"
3580             add_ldflags  --sysroot="$sysroot"
3581         ;;
3582     esac
3583 fi
3584
3585 if test "$cpu" = host; then
3586     enabled cross_compile &&
3587         die "--cpu=host makes no sense when cross-compiling."
3588
3589     case "$cc_type" in
3590         gcc|llvm_gcc)
3591             check_native(){
3592                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3593                 sed -n "/cc1.*$1=/{
3594                             s/.*$1=\\([^ ]*\\).*/\\1/
3595                             p
3596                             q
3597                         }" $TMPE
3598             }
3599             cpu=$(check_native -march || check_native -mcpu)
3600         ;;
3601     esac
3602
3603     test "${cpu:-host}" = host &&
3604         die "--cpu=host not supported with compiler $cc"
3605 fi
3606
3607 # Deal with common $arch aliases
3608 case "$arch" in
3609     aarch64|arm64)
3610         arch="aarch64"
3611     ;;
3612     arm*)
3613         arch="arm"
3614     ;;
3615     mips*|IP*)
3616         case "$arch" in
3617         *el)
3618             add_cppflags -EL
3619             add_ldflags -EL
3620         ;;
3621         *eb)
3622             add_cppflags -EB
3623             add_ldflags -EB
3624         ;;
3625         esac
3626         arch="mips"
3627     ;;
3628     parisc*|hppa*)
3629         arch="parisc"
3630     ;;
3631     "Power Macintosh"|ppc*|powerpc*)
3632         arch="ppc"
3633     ;;
3634     s390|s390x)
3635         arch="s390"
3636     ;;
3637     sh4|sh)
3638         arch="sh4"
3639     ;;
3640     sun4u|sparc*)
3641         arch="sparc"
3642     ;;
3643     tilegx|tile-gx)
3644         arch="tilegx"
3645     ;;
3646     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3647         arch="x86"
3648     ;;
3649 esac
3650
3651 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3652 enable $arch
3653
3654 # Add processor-specific flags
3655 if enabled aarch64; then
3656
3657     case $cpu in
3658         armv*)
3659             cpuflags="-march=$cpu"
3660         ;;
3661         *)
3662             cpuflags="-mcpu=$cpu"
3663         ;;
3664     esac
3665
3666 elif enabled alpha; then
3667
3668     cpuflags="-mcpu=$cpu"
3669
3670 elif enabled arm; then
3671
3672     check_arm_arch() {
3673         check_cpp_condition stddef.h \
3674             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3675             $cpuflags
3676     }
3677
3678     probe_arm_arch() {
3679         if   check_arm_arch 4;        then echo armv4
3680         elif check_arm_arch 4T;       then echo armv4t
3681         elif check_arm_arch 5;        then echo armv5
3682         elif check_arm_arch 5E;       then echo armv5e
3683         elif check_arm_arch 5T;       then echo armv5t
3684         elif check_arm_arch 5TE;      then echo armv5te
3685         elif check_arm_arch 5TEJ;     then echo armv5te
3686         elif check_arm_arch 6;        then echo armv6
3687         elif check_arm_arch 6J;       then echo armv6j
3688         elif check_arm_arch 6K;       then echo armv6k
3689         elif check_arm_arch 6Z;       then echo armv6z
3690         elif check_arm_arch 6ZK;      then echo armv6zk
3691         elif check_arm_arch 6T2;      then echo armv6t2
3692         elif check_arm_arch 7;        then echo armv7
3693         elif check_arm_arch 7A  7_A;  then echo armv7-a
3694         elif check_arm_arch 7S;       then echo armv7-a
3695         elif check_arm_arch 7R  7_R;  then echo armv7-r
3696         elif check_arm_arch 7M  7_M;  then echo armv7-m
3697         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3698         elif check_arm_arch 8A  8_A;  then echo armv8-a
3699         fi
3700     }
3701
3702     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3703
3704     case $cpu in
3705         armv*)
3706             cpuflags="-march=$cpu"
3707             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3708         ;;
3709         *)
3710             cpuflags="-mcpu=$cpu"
3711             case $cpu in
3712                 cortex-a*)                               subarch=armv7a  ;;
3713                 cortex-r*)                               subarch=armv7r  ;;
3714                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3715                 arm11*)                                  subarch=armv6   ;;
3716                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3717                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3718                 *)                             subarch=$(probe_arm_arch) ;;
3719             esac
3720         ;;
3721     esac
3722
3723     case "$subarch" in
3724         armv5t*)    enable fast_clz                ;;
3725         armv[6-8]*) enable fast_clz fast_unaligned ;;
3726     esac
3727
3728 elif enabled avr32; then
3729
3730     case $cpu in
3731         ap7[02]0[0-2])
3732             subarch="avr32_ap"
3733             cpuflags="-mpart=$cpu"
3734         ;;
3735         ap)
3736             subarch="avr32_ap"
3737             cpuflags="-march=$cpu"
3738         ;;
3739         uc3[ab]*)
3740             subarch="avr32_uc"
3741             cpuflags="-mcpu=$cpu"
3742         ;;
3743         uc)
3744             subarch="avr32_uc"
3745             cpuflags="-march=$cpu"
3746         ;;
3747     esac
3748
3749 elif enabled bfin; then
3750
3751     cpuflags="-mcpu=$cpu"
3752
3753 elif enabled mips; then
3754
3755     cpuflags="-march=$cpu"
3756
3757 elif enabled ppc; then
3758
3759     disable ldbrx
3760
3761     case $(tolower $cpu) in
3762         601|ppc601|powerpc601)
3763             cpuflags="-mcpu=601"
3764             disable altivec
3765         ;;
3766         603*|ppc603*|powerpc603*)
3767             cpuflags="-mcpu=603"
3768             disable altivec
3769         ;;
3770         604*|ppc604*|powerpc604*)
3771             cpuflags="-mcpu=604"
3772             disable altivec
3773         ;;
3774         g3|75*|ppc75*|powerpc75*)
3775             cpuflags="-mcpu=750"
3776             disable altivec
3777         ;;
3778         g4|745*|ppc745*|powerpc745*)
3779             cpuflags="-mcpu=7450"
3780             disable vsx
3781         ;;
3782         74*|ppc74*|powerpc74*)
3783             cpuflags="-mcpu=7400"
3784             disable vsx
3785         ;;
3786         g5|970|ppc970|powerpc970)
3787             cpuflags="-mcpu=970"
3788             disable vsx
3789         ;;
3790         power[3-6]*)
3791             cpuflags="-mcpu=$cpu"
3792             disable vsx
3793         ;;
3794         power[7-8]*)
3795             cpuflags="-mcpu=$cpu"
3796             enable ldbrx
3797         ;;
3798         cell)
3799             cpuflags="-mcpu=cell"
3800             enable ldbrx
3801             disable vsx
3802         ;;
3803         e500mc)
3804             cpuflags="-mcpu=e500mc"
3805             disable altivec
3806         ;;
3807         e500v2)
3808             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3809             disable altivec
3810             disable dcbzl
3811         ;;
3812         e500)
3813             cpuflags="-mcpu=8540 -mhard-float"
3814             disable altivec
3815             disable dcbzl
3816         ;;
3817     esac
3818
3819 elif enabled sparc; then
3820
3821     case $cpu in
3822         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3823             cpuflags="-mcpu=$cpu"
3824         ;;
3825         ultrasparc*|niagara[234])
3826             cpuflags="-mcpu=$cpu"
3827         ;;
3828     esac
3829
3830 elif enabled x86; then
3831
3832     case $cpu in
3833         i[345]86|pentium)
3834             cpuflags="-march=$cpu"
3835             disable i686
3836             disable mmx
3837         ;;
3838         # targets that do NOT support nopl and conditional mov (cmov)
3839         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3840             cpuflags="-march=$cpu"
3841             disable i686
3842         ;;
3843         # targets that do support nopl and conditional mov (cmov)
3844         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3845             cpuflags="-march=$cpu"
3846             enable i686
3847             enable fast_cmov
3848         ;;
3849         # targets that do support conditional mov but on which it's slow
3850         pentium4|pentium4m|prescott|nocona)
3851             cpuflags="-march=$cpu"
3852             enable i686
3853             disable fast_cmov
3854         ;;
3855     esac
3856
3857 fi
3858
3859 if [ "$cpu" != generic ]; then
3860     add_cflags  $cpuflags
3861     add_asflags $cpuflags
3862     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3863 fi
3864
3865 # compiler sanity check
3866 check_exec <<EOF
3867 int main(void){ return 0; }
3868 EOF
3869 if test "$?" != 0; then
3870     echo "$cc is unable to create an executable file."
3871     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3872         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3873         echo "Only do this if you know what cross compiling means."
3874     fi
3875     die "C compiler test failed."
3876 fi
3877
3878 add_cppflags -D_ISOC99_SOURCE
3879
3880 # some compilers silently accept -std=c11, so we also need to check that the
3881 # version macro is defined properly
3882 check_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3883     add_cflags -std=c11 ||
3884     check_cflags -std=c99
3885
3886 check_cppflags -D_FILE_OFFSET_BITS=64
3887 check_cppflags -D_LARGEFILE_SOURCE
3888
3889 add_host_cppflags -D_ISOC99_SOURCE
3890 check_host_cflags -std=c99
3891 check_host_cflags -Wall
3892 check_host_cflags $host_cflags_speed
3893
3894 check_64bit(){
3895     arch32=$1
3896     arch64=$2
3897     expr=$3
3898     check_code cc "" "int test[2*($expr) - 1]" &&
3899         subarch=$arch64 || subarch=$arch32
3900 }
3901
3902 case "$arch" in
3903     aarch64|alpha|ia64)
3904         spic=$shared
3905     ;;
3906     mips)
3907         check_64bit mips mips64 '_MIPS_SIM > 1'
3908         spic=$shared
3909     ;;
3910     parisc)
3911         check_64bit parisc parisc64 'sizeof(void *) > 4'
3912         spic=$shared
3913     ;;
3914     ppc)
3915         check_64bit ppc ppc64 'sizeof(void *) > 4'
3916         spic=$shared
3917     ;;
3918     s390)
3919         check_64bit s390 s390x 'sizeof(void *) > 4'
3920         spic=$shared
3921     ;;
3922     sparc)
3923         check_64bit sparc sparc64 'sizeof(void *) > 4'
3924         spic=$shared
3925     ;;
3926     x86)
3927         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3928         if test "$subarch" = "x86_64"; then
3929             spic=$shared
3930         fi
3931     ;;
3932 esac
3933
3934 enable $subarch
3935 enabled spic && enable_weak pic
3936
3937 enabled x86_64 && objformat=elf64 || objformat="elf32"
3938
3939 # OS specific
3940 case $target_os in
3941     aix)
3942         SHFLAGS=-shared
3943         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3944         enabled shared && add_ldflags -Wl,-brtl
3945         ;;
3946     android)
3947         disable symver
3948         enable section_data_rel_ro
3949         SLIB_INSTALL_NAME='$(SLIBNAME)'
3950         SLIB_INSTALL_LINKS=
3951         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3952         ;;
3953     haiku)
3954         prefix_default="/boot/common"
3955         network_extralibs="-lnetwork"
3956         host_extralibs=
3957         ;;
3958     sunos)
3959         SHFLAGS='-shared -Wl,-h,$$(@F)'
3960         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3961         network_extralibs="-lsocket -lnsl"
3962         # When using suncc to build, the Solaris linker will mark
3963         # an executable with each instruction set encountered by
3964         # the Solaris assembler.  As our libraries contain their own
3965         # guards for processor-specific code, instead suppress
3966         # generation of the HWCAPS ELF section on Solaris x86 only.
3967         enabled_all suncc x86 &&
3968             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3969             add_ldflags -Wl,-M,mapfile
3970         nm_default='nm -P -g'
3971         version_script='-M'
3972         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3973         ;;
3974     netbsd)
3975         disable symver
3976         oss_indev_extralibs="-lossaudio"
3977         oss_outdev_extralibs="-lossaudio"
3978         ;;
3979     openbsd|bitrig)
3980         disable symver
3981         SHFLAGS='-shared'
3982         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3983         SLIB_INSTALL_LINKS=
3984         oss_indev_extralibs="-lossaudio"
3985         oss_outdev_extralibs="-lossaudio"
3986         ;;
3987     dragonfly)
3988         disable symver
3989         ;;
3990     freebsd)
3991         ;;
3992     bsd/os)
3993         add_extralibs -lpoll -lgnugetopt
3994         ;;
3995     darwin)
3996         enabled ppc && add_asflags -force_cpusubtype_ALL
3997         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3998         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3999         add_ldflags -Wl,-dynamic,-search_paths_first
4000         check_cflags -Werror=partial-availability
4001         SLIBSUF=".dylib"
4002         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
4003         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
4004         enabled x86_64 && objformat="macho64" || objformat="macho32"
4005         enabled_any pic shared ||
4006             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4007         check_header dispatch/dispatch.h &&
4008             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4009         if test -n "$sysroot"; then
4010             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4011             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
4012         fi
4013         ;;
4014     msys*)
4015         die "Native MSYS builds are discouraged, please use the MINGW environment."
4016         ;;
4017     mingw32*|mingw64*)
4018         if test $target_os = "mingw32ce"; then
4019             disable network
4020         else
4021             target_os=mingw32
4022         fi
4023         LIBTARGET=i386
4024         if enabled x86_64; then
4025             LIBTARGET="i386:x86-64"
4026         elif enabled arm; then
4027             LIBTARGET=arm-wince
4028         fi
4029         check_ldflags -Wl,--nxcompat
4030         check_ldflags -Wl,--dynamicbase
4031         shlibdir_default="$bindir_default"
4032         SLIBPREF=""
4033         SLIBSUF=".dll"
4034         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4035         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4036         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4037         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4038         SLIB_INSTALL_LINKS=
4039         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4040         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4041         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4042         enabled x86_64 && objformat="win64" || objformat="win32"
4043         dlltool="${cross_prefix}dlltool"
4044         ranlib=:
4045         enable dos_paths
4046         ;;
4047     win32|win64)
4048         disable symver
4049         if enabled shared; then
4050             # Link to the import library instead of the normal static library
4051             # for shared libs.
4052             LD_LIB='%.lib'
4053             # Cannot build both shared and static libs with MSVC or icl.
4054             disable static
4055         fi
4056         shlibdir_default="$bindir_default"
4057         SLIBPREF=""
4058         SLIBSUF=".dll"
4059         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4060         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4061         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4062         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4063         SLIB_INSTALL_LINKS=
4064         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4065         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4066         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4067         enabled x86_64 && objformat="win64" || objformat="win32"
4068         ranlib=:
4069         enable dos_paths
4070         ;;
4071     cygwin*)
4072         target_os=cygwin
4073         shlibdir_default="$bindir_default"
4074         SLIBPREF="cyg"
4075         SLIBSUF=".dll"
4076         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4077         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4078         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4079         SLIB_INSTALL_LINKS=
4080         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4081         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4082         enabled x86_64 && objformat="win64" || objformat="win32"
4083         enable dos_paths
4084         ;;