configure 81.1 KB
Newer Older
1
#!/bin/sh
2
#
3 4
# FFmpeg configure script
#
Diego Biurrun's avatar
Diego Biurrun committed
5 6 7
# Copyright (c) 2000-2002 Fabrice Bellard
# Copyright (c) 2005-2008 Diego Biurrun
# Copyright (c) 2005-2008 Mans Rullgard
8
#
9

10
# Prevent locale nonsense from breaking basic text processing.
11 12
LC_ALL=C
export LC_ALL
13

14
# make sure we are running under a compatible shell
15 16 17
# try to make this part work with most shells

try_exec(){
18
    echo "Trying shell $1"
19
    type "$1" > /dev/null 2>&1 && exec "$@"
20 21
}

Måns Rullgård's avatar
Måns Rullgård committed
22
unset foo
23
(: ${foo%%bar}) 2> /dev/null
24 25
E1="$?"

26
(: ${foo?}) 2> /dev/null
27 28 29 30
E2="$?"

if test "$E1" != 0 || test "$E2" = 0; then
    echo "Broken shell detected.  Trying alternatives."
31 32 33 34 35 36 37 38 39 40 41 42
    export FF_CONF_EXEC
    if test "0$FF_CONF_EXEC" -lt 1; then
        FF_CONF_EXEC=1
        try_exec bash "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 2; then
        FF_CONF_EXEC=2
        try_exec ksh "$0" "$@"
    fi
    if test "0$FF_CONF_EXEC" -lt 3; then
        FF_CONF_EXEC=3
        try_exec /usr/xpg4/bin/sh "$0" "$@"
43 44
    fi
    echo "No compatible shell script interpreter found."
Diego Biurrun's avatar
typo  
Diego Biurrun committed
45
    echo "This configure script requires a POSIX-compatible shell"
46
    echo "such as bash or ksh."
Diego Biurrun's avatar
Diego Biurrun committed
47 48 49
    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
    echo "Instead, install a working POSIX-compatible shell."
    echo "Disabling this configure test will create a broken FFmpeg."
50 51 52 53
    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
        echo "This bash version ($BASH_VERSION) is broken on your platform."
        echo "Upgrade to a later version if available."
    fi
54 55 56
    exit 1
fi

57 58 59 60 61 62
show_help(){
  echo "Usage: configure [options]"
  echo "Options: [defaults in brackets after descriptions]"
  echo
  echo "Standard options:"
  echo "  --help                   print this message"
63 64
  echo "  --logfile=FILE           log tests and output to FILE [config.err]"
  echo "  --disable-logging        do not log configure debug information"
65
  echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
66
  echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
67
  echo "  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]"
68
  echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
69
  echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
70
  echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
71
  echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
72 73
  echo
  echo "Configuration options:"
74 75
  echo "  --disable-static         do not build static libraries [no]"
  echo "  --enable-shared          build shared libraries [no]"
76 77
  echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  echo "                           and binaries will be under GPL [no]"
78
  echo "  --enable-version3        upgrade (L)GPL to version 3 [no]"
79 80
  echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  echo "                           and binaries will be unredistributable [no]"
81
  echo "  --disable-doc            do not build documentation"
82 83 84
  echo "  --disable-ffmpeg         disable ffmpeg build"
  echo "  --disable-ffplay         disable ffplay build"
  echo "  --disable-ffserver       disable ffserver build"
85
  echo "  --enable-postproc        enable GPLed postprocessing support [no]"
86
  echo "  --enable-avfilter        video filter support [no]"
87
  echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
88 89 90 91 92
  echo "  --enable-beosthreads     use BeOS threads [no]"
  echo "  --enable-os2threads      use OS/2 threads [no]"
  echo "  --enable-pthreads        use pthreads [no]"
  echo "  --enable-w32threads      use Win32 threads [no]"
  echo "  --enable-x11grab         enable X11 grabbing [no]"
93 94 95 96
  echo "  --disable-network        disable network support [no]"
  echo "  --disable-ipv6           disable IPv6 support [no]"
  echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
  echo "  --enable-gray            enable full grayscale support (slower color)"
97
  echo "  --disable-swscale-alpha  disable alpha channel support in swscale"
98
  echo "  --disable-fastdiv        disable table-based division"
99 100 101 102
  echo "  --enable-small           optimize for size instead of speed"
  echo "  --disable-aandct         disable AAN DCT code"
  echo "  --disable-fft            disable FFT code"
  echo "  --disable-golomb         disable Golomb code"
103
  echo "  --disable-lpc            disable LPC code"
104
  echo "  --disable-mdct           disable MDCT code"
105
  echo "  --disable-rdft           disable RDFT code"
106 107
  echo "  --disable-vaapi          disable VAAPI code"
  echo "  --disable-vdpau          disable VDPAU code"
108
  echo "  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)"
109 110 111 112 113 114 115 116 117
  echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
  echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
  echo "  --enable-beos-netserver  enable BeOS netserver"
  echo "  --disable-encoder=NAME   disable encoder NAME"
  echo "  --enable-encoder=NAME    enable encoder NAME"
  echo "  --disable-encoders       disable all encoders"
  echo "  --disable-decoder=NAME   disable decoder NAME"
  echo "  --enable-decoder=NAME    enable decoder NAME"
  echo "  --disable-decoders       disable all decoders"
118 119 120
  echo "  --disable-hwaccel=NAME   disable hwaccel NAME"
  echo "  --enable-hwaccel=NAME    enable hwaccel NAME"
  echo "  --disable-hwaccels       disable all hwaccels"
121 122 123 124 125 126 127 128 129 130 131 132 133 134 135
  echo "  --disable-muxer=NAME     disable muxer NAME"
  echo "  --enable-muxer=NAME      enable muxer NAME"
  echo "  --disable-muxers         disable all muxers"
  echo "  --disable-demuxer=NAME   disable demuxer NAME"
  echo "  --enable-demuxer=NAME    enable demuxer NAME"
  echo "  --disable-demuxers       disable all demuxers"
  echo "  --enable-parser=NAME     enable parser NAME"
  echo "  --disable-parser=NAME    disable parser NAME"
  echo "  --disable-parsers        disable all parsers"
  echo "  --enable-bsf=NAME        enable bitstream filter NAME"
  echo "  --disable-bsf=NAME       disable bitstream filter NAME"
  echo "  --disable-bsfs           disable all bitstream filters"
  echo "  --enable-protocol=NAME   enable protocol NAME"
  echo "  --disable-protocol=NAME  disable protocol NAME"
  echo "  --disable-protocols      disable all protocols"
136 137
  echo "  --disable-indev=NAME     disable input device NAME"
  echo "  --disable-outdev=NAME    disable output device NAME"
138 139 140 141 142 143 144 145
  echo "  --disable-indevs         disable input devices"
  echo "  --disable-outdevs        disable output devices"
  echo "  --disable-devices        disable all devices"
  echo "  --enable-filter=NAME     enable filter NAME"
  echo "  --disable-filter=NAME    disable filter NAME"
  echo "  --disable-filters        disable all filters"
  echo "  --list-decoders          show all available decoders"
  echo "  --list-encoders          show all available encoders"
146
  echo "  --list-hwaccels          show all available hardware accelerators"
147 148 149 150 151 152 153 154
  echo "  --list-muxers            show all available muxers"
  echo "  --list-demuxers          show all available demuxers"
  echo "  --list-parsers           show all available parsers"
  echo "  --list-protocols         show all available protocols"
  echo "  --list-bsfs              show all available bitstream filters"
  echo "  --list-indevs            show all available input devices"
  echo "  --list-outdevs           show all available output devices"
  echo "  --list-filters           show all available filters"
155 156
  echo
  echo "External library support:"
157
  echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
158
  echo "  --enable-bzlib           enable bzlib [autodetect]"
159 160
  echo "  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]"
  echo "  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]"
Ramiro Polla's avatar
Ramiro Polla committed
161
  echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
162 163 164 165 166 167 168
  echo "                           and libraw1394 [no]"
  echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
  echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
  echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
  echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
  echo "  --enable-libgsm          enable GSM support via libgsm [no]"
  echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
169
  echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
170
  echo "                           native (de)muxer exists [no]"
171
  echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
172 173 174
  echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
  echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
  echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
175
  echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
176 177
  echo "                           native implementation exists [no]"
  echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
178
  echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
179
  echo "                           native MPEG-4/Xvid encoder exists [no]"
Diego Biurrun's avatar
Diego Biurrun committed
180
  echo "  --enable-mlib            enable Sun medialib [no]"
181
  echo "  --enable-zlib            enable zlib [autodetect]"
182 183 184 185
  echo ""
  echo "Advanced options (experts only):"
  echo "  --source-path=PATH       path to source code [$source_path]"
  echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
186
  echo "  --enable-cross-compile   assume a cross-compiler is used"
187 188
  echo "  --sysroot=PATH           root of cross-build tree"
  echo "  --sysinclude=PATH        location of cross-build system headers"
189
  echo "  --target-os=OS           compiler targets OS [$target_os]"
190 191
  echo "  --target-exec=CMD        command to run executables on target"
  echo "  --target-path=DIR        path to view of build directory on target"
192
  echo "  --nm=NM                  use nm tool"
193
  echo "  --as=AS                  use assembler AS [$as_default]"
194
  echo "  --cc=CC                  use C compiler CC [$cc_default]"
195
  echo "  --ld=LD                  use linker LD"
196 197 198 199
  echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
  echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
  echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
  echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
200 201 202
  echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
  echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
  echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
203
  echo "  --extra-version=STRING   version string suffix []"
204 205 206
  echo "  --build-suffix=SUFFIX    library name suffix []"
  echo "  --arch=ARCH              select architecture [$arch]"
  echo "  --cpu=CPU                select the minimum required CPU (affects"
207
  echo "                           instruction selection, may crash on older CPUs)"
208
  echo "  --enable-powerpc-perf    enable performance report on PPC"
209
  echo "                           (requires enabling PMC)"
210
  echo "  --disable-altivec        disable AltiVec optimizations"
211
  echo "  --disable-amd3dnow       disable 3DNow! optimizations"
212
  echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
213 214
  echo "  --disable-mmx            disable MMX optimizations"
  echo "  --disable-mmx2           disable MMX2 optimizations"
215
  echo "  --disable-sse            disable SSE optimizations"
216 217 218
  echo "  --disable-ssse3          disable SSSE3 optimizations"
  echo "  --disable-armv5te        disable armv5te optimizations"
  echo "  --disable-armv6          disable armv6 optimizations"
219
  echo "  --disable-armv6t2        disable armv6t2 optimizations"
Diego Biurrun's avatar
Diego Biurrun committed
220
  echo "  --disable-armvfp         disable ARM VFP optimizations"
221
  echo "  --disable-iwmmxt         disable iwmmxt optimizations"
222 223 224
  echo "  --disable-mmi            disable MMI optimizations"
  echo "  --disable-neon           disable neon optimizations"
  echo "  --disable-vis            disable VIS optimizations"
225
  echo "  --disable-yasm           disable use of yasm assembler"
226
  echo "  --enable-pic             build position-independent code"
227 228
  echo
  echo "Developer options (useful when working on FFmpeg itself):"
229
  echo "  --disable-debug          disable debugging symbols"
230
  echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
231
  echo "  --enable-gprof           enable profiling with gprof [$gprof]"
232
  echo "  --disable-optimizations  disable compiler optimizations"
233
  echo "  --enable-extra-warnings  enable more compiler warnings"
234
  echo "  --disable-stripping      disable stripping of executables and shared libraries"
235 236
  echo ""
  echo "NOTE: Object files are built at the place where configure is launched."
237
  exit 0
238
}
239

240
log(){
241
    echo "$@" >> $logfile
242 243
}

244
log_file(){
Måns Rullgård's avatar
Måns Rullgård committed
245
    log BEGIN $1
246
    pr -n -t $1 >> $logfile
Måns Rullgård's avatar
Måns Rullgård committed
247 248 249
    log END $1
}

250
echolog(){
Måns Rullgård's avatar
Måns Rullgård committed
251
    log "$@"
252
    echo "$@"
253 254 255 256 257
}

die(){
    echolog "$@"
    cat <<EOF
258

259 260
If you think configure made a mistake, make sure you are using the latest
version from SVN.  If the latest version fails, report the problem to the
261
ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
262
EOF
263
    if disabled logging; then
264
        cat <<EOF
265 266
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
267 268 269
EOF
    else
cat <<EOF
270 271
Include the log file "$logfile" produced by configure as this will help
solving the problem.
272 273
EOF
    fi
274 275 276
    exit 1
}

277
# Avoid locale weirdness, besides we really just want to translate ASCII.
278
toupper(){
279
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
280 281
}

Måns Rullgård's avatar
Måns Rullgård committed
282
tolower(){
283
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
Måns Rullgård's avatar
Måns Rullgård committed
284 285
}

286 287 288 289
c_escape(){
    echo "$*" | sed 's/["\\]/\\\0/g'
}

290 291 292 293 294 295
sh_quote(){
    v=$(echo "$1" | sed "s/'/'\\\\''/g")
    test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
    echo "$v"
}

296 297 298 299
filter(){
    pat=$1
    shift
    for v; do
300
        eval "case $v in $pat) echo $v ;; esac"
301 302 303
    done
}

304 305 306 307 308 309 310 311
set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}

312 313 314 315 316 317 318 319
set_weak(){
    value=$1
    shift
    for var; do
        eval : \${$var:=$value}
    done
}

320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338
pushvar(){
    for var in $*; do
        eval level=\${${var}_level:=0}
        eval ${var}_${level}="\$$var"
        eval ${var}_level=$(($level+1))
    done
}

popvar(){
    for var in $*; do
        eval level=\${${var}_level:-0}
        test $level = 0 && continue
        eval level=$(($level-1))
        eval $var="\${${var}_${level}}"
        eval ${var}_level=$level
        eval unset ${var}_${level}
    done
}

339 340 341 342 343 344 345 346
enable(){
    set_all yes $*
}

disable(){
    set_all no $*
}

347 348 349 350 351 352 353 354
enable_weak(){
    set_weak yes $*
}

disable_weak(){
    set_weak no $*
}

355 356 357 358 359 360 361 362
enable_safe(){
    enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
}

disable_safe(){
    disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
}

363 364 365 366
do_enable_deep(){
    for var; do
        enabled $var && continue
        eval sel="\$${var}_select"
367 368
        eval sgs="\$${var}_suggest"
        pushvar var sgs
369
        enable_deep $sel
370 371
        popvar sgs
        enable_deep_weak $sgs
372 373 374 375 376 377 378 379 380
        popvar var
    done
}

enable_deep(){
    do_enable_deep $*
    enable $*
}

381 382 383 384 385
enable_deep_weak(){
    do_enable_deep $*
    enable_weak $*
}

386
enabled(){
387 388
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xyes"
389 390
}

391
disabled(){
392 393
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xno"
394 395
}

396 397 398 399 400 401
enabled_all(){
    for opt; do
        enabled $opt || return 1
    done
}

402 403 404 405 406 407
disabled_all(){
    for opt; do
        disabled $opt || return 1
    done
}

408 409 410 411 412 413
enabled_any(){
    for opt; do
        enabled $opt && return 0
    done
}

414 415 416 417
disabled_any(){
    for opt; do
        disabled $opt && return 0
    done
418
    return 1
419 420
}

421 422
set_default(){
    for opt; do
423
        eval : \${$opt:=\$${opt}_default}
424 425 426
    done
}

427 428 429 430 431 432 433 434 435
is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}

436 437
check_deps(){
    for cfg; do
438
        cfg="${cfg#!}"
439 440 441 442
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
        disabled ${cfg}_checking && continue
        enable ${cfg}_checking

443 444
        eval dep_all="\$${cfg}_deps"
        eval dep_any="\$${cfg}_deps_any"
445
        eval dep_sel="\$${cfg}_select"
446
        eval dep_sgs="\$${cfg}_suggest"
447

448 449 450
        pushvar cfg dep_all dep_any dep_sel dep_sgs
        check_deps $dep_all $dep_any $dep_sel $dep_sgs
        popvar cfg dep_all dep_any dep_sel dep_sgs
451

Måns Rullgård's avatar
Måns Rullgård committed
452 453
        enabled_all  $dep_all || disable $cfg
        enabled_any  $dep_any || disable $cfg
454
        disabled_any $dep_sel && disable $cfg
455

456 457 458
        if enabled $cfg; then
            eval dep_extralibs="\$${cfg}_extralibs"
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
459
            enable_deep $dep_sel
460
            enable_deep_weak $dep_sgs
461 462
        fi

463
        disable ${cfg}_checking
464 465 466
    done
}

467 468 469 470 471 472
print_config(){
    pfx=$1
    header=$2
    makefile=$3
    shift 3
    for cfg; do
473
        ucname="$(toupper $cfg)"
474
        if enabled $cfg; then
475 476 477
            echo "#define ${pfx}${ucname} 1" >> $header
            echo "${pfx}${ucname}=yes" >> $makefile
        else
478
            echo "#define ${pfx}${ucname} 0" >> $header
479 480
        fi
    done
481 482 483
}

flags_saved(){
484
    (: ${SAVE_CFLAGS?}) 2> /dev/null
485 486
}

487
save_flags(){
488
    flags_saved && return
489 490 491 492 493 494
    SAVE_CFLAGS="$CFLAGS"
    SAVE_LDFLAGS="$LDFLAGS"
    SAVE_extralibs="$extralibs"
}

restore_flags(){
495
    flags_saved || return
496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518
    CFLAGS="$SAVE_CFLAGS"
    LDFLAGS="$SAVE_LDFLAGS"
    extralibs="$SAVE_extralibs"
    unset SAVE_CFLAGS
    unset SAVE_LDFLAGS
    unset SAVE_extralibs
}

temp_cflags(){
    save_flags
    CFLAGS="$CFLAGS $*"
}

temp_ldflags(){
    save_flags
    LDFLAGS="$LDFLAGS $*"
}

temp_extralibs(){
    save_flags
    extralibs="$extralibs $*"
}

519 520 521 522 523 524 525
append(){
    var=$1
    shift
    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
    eval "$var=\"\$$var $*\""
}

526
add_cppflags(){
527
    append CPPFLAGS $($filter_cppflags "$@")
528 529
}

530
add_cflags(){
531
    append CFLAGS $($filter_cflags "$@")
532 533
}

534
add_asflags(){
535
    append ASFLAGS $($filter_asflags "$@")
536 537
}

538 539 540 541 542 543 544 545
add_ldflags(){
    append LDFLAGS "$@"
}

add_extralibs(){
    append extralibs "$@"
}

546
check_cmd(){
Måns Rullgård's avatar
Måns Rullgård committed
547
    log "$@"
548
    "$@" >> $logfile 2>&1
549 550
}

551
check_cc(){
552
    log check_cc "$@"
553
    cat > $TMPC
554
    log_file $TMPC
555
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
556 557 558 559
}

check_cpp(){
    log check_cpp "$@"
560
    cat > $TMPC
561
    log_file $TMPC
Måns Rullgård's avatar
Måns Rullgård committed
562
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
563 564
}

565 566 567 568
check_as(){
    log check_as "$@"
    cat > $TMPC
    log_file $TMPC
569
    check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
570 571
}

572 573 574 575 576
check_asm(){
    log check_asm "$@"
    name="$1"
    asm="$2"
    shift 2
577 578
    disable $name
    check_as "$@" <<EOF && enable $name
579
void foo(void){ __asm__ volatile($asm); }
580 581 582
EOF
}

Loren Merritt's avatar
Loren Merritt committed
583 584 585 586 587 588 589 590
check_yasm(){
    log check_yasm "$@"
    echo "$1" > $TMPS
    log_file $TMPS
    shift 1
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
}

591
check_ld(){
592
    log check_ld "$@"
593
    check_cc || return
594 595 596 597 598
    flags=''
    libs=''
    for f; do
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
    done
599
    check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
600 601
}

602 603
check_cppflags(){
    log check_cppflags "$@"
604 605
    set -- $($filter_cppflags "$@")
    check_cc "$@" <<EOF && append CPPFLAGS "$@"
606 607 608 609
int x;
EOF
}

610
check_cflags(){
611
    log check_cflags "$@"
612 613
    set -- $($filter_cflags "$@")
    check_cc "$@" <<EOF && append CFLAGS "$@"
614 615 616 617 618
int x;
EOF
}

check_ldflags(){
619 620
    log check_ldflags "$@"
    check_ld "$@" <<EOF && add_ldflags "$@"
621
int main(void){ return 0; }
622 623 624 625
EOF
}

check_header(){
626
    log check_header "$@"
627 628
    header=$1
    shift
629 630
    disable_safe $header
    check_cpp "$@" <<EOF && enable_safe $header
631 632 633 634 635 636
#include <$header>
int x;
EOF
}

check_func(){
637
    log check_func "$@"
638 639
    func=$1
    shift
Måns Rullgård's avatar
Måns Rullgård committed
640 641
    disable $func
    check_ld "$@" <<EOF && enable $func
642
extern int $func();
643
int main(void){ $func(); }
644 645 646
EOF
}

647 648
check_func_headers(){
    log check_func_headers "$@"
649 650 651 652 653 654 655 656 657
    headers=$1
    func=$2
    shift 2
    disable $func
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
658
    check_ld "$@" <<EOF && enable $func && enable_safe $headers
659
$incs
660
int main(int argc, char **argv){
661
    return (long) $func;
662 663 664 665
}
EOF
}

666 667 668 669 670 671 672 673 674 675 676 677
check_cpp_condition(){
    log check_cpp_condition "$@"
    header=$1
    condition=$2
    check_cpp <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}

678 679 680 681 682
check_lib(){
    log check_lib "$@"
    header="$1"
    func="$2"
    shift 2
683 684 685 686 687
    temp_extralibs "$@"
    check_header $header && check_func $func && add_extralibs "$@"
    err=$?
    restore_flags
    return $err
688 689
}

690 691 692 693 694 695
check_lib2(){
    log check_lib2 "$@"
    headers="$1"
    func="$2"
    shift 2
    temp_extralibs "$@"
696
    check_func_headers "$headers" $func && add_extralibs "$@"
697 698 699 700 701
    err=$?
    restore_flags
    return $err
}

702
check_exec(){
703
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
704 705
}

706
check_exec_crash(){
707
    code=$(cat)
708 709 710 711 712 713 714

    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
    # are safe but may not be available everywhere.  Thus we use
    # raise(SIGTERM) instead.  The check is run in a subshell so we
    # can redirect the "Terminated" message from the shell.  SIGBUS
    # is not defined by standard C so it is used conditionally.

715
    (check_exec "$@") >> $logfile 2>&1 <<EOF
716 717 718 719
#include <signal.h>
static void sighandler(int sig){
    raise(SIGTERM);
}
Diego Biurrun's avatar
Diego Biurrun committed
720
int main(void){
721 722 723 724 725 726 727 728 729 730 731
    signal(SIGILL, sighandler);
    signal(SIGFPE, sighandler);
    signal(SIGSEGV, sighandler);
#ifdef SIGBUS
    signal(SIGBUS, sighandler);
#endif
    { $code }
}
EOF
}

732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748
check_type(){
    log check_type "$@"
    headers=$1
    type=$2
    shift 2
    disable $type
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
    check_cc "$@" <<EOF && enable $type
$incs
$type v;
EOF
}

749 750 751 752 753 754
require(){
    name="$1"
    header="$2"
    func="$3"
    shift 3
    check_lib $header $func "$@" || die "ERROR: $name not found"
755 756
}

757 758 759 760 761 762 763 764
require2(){
    name="$1"
    headers="$2"
    func="$3"
    shift 3
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
}

765 766 767 768 769 770 771 772 773 774
check_foo_config(){
    cfg=$1
    pkg=$2
    header=$3
    func=$4
    shift 4
    disable $cfg
    check_cmd ${pkg}-config --version
    err=$?
    if test "$err" = 0; then
775 776
        temp_cflags $(${pkg}-config --cflags)
        temp_extralibs $(${pkg}-config --libs)
777 778 779 780 781
        check_lib "$@" $header $func && enable $cfg
    fi
    return $err
}

782 783 784 785 786 787 788 789 790 791 792 793 794 795
check_host_cc(){
    log check_host_cc "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
}

check_host_cflags(){
    log check_host_cflags "$@"
    check_host_cc "$@" <<EOF && append host_cflags "$@"
int x;
EOF
}

796 797 798 799 800 801
apply(){
    file=$1
    shift
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
}

802 803 804
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
# system-dependent things.

805 806 807 808 809
COMPONENT_LIST="
    bsfs
    decoders
    demuxers
    encoders
Vitor Sessak's avatar
Vitor Sessak committed
810
    filters
811
    hwaccels
812
    indevs
813
    muxers
814
    outdevs
815 816 817 818 819 820
    parsers
    protocols
"

CONFIG_LIST="
    $COMPONENT_LIST
821
    aandct
822 823
    avfilter
    avfilter_lavf
824 825
    avisynth
    beos_netserver
826
    bzlib
827
    doc
828
    fastdiv
829 830 831
    ffmpeg
    ffplay
    ffserver
832
    fft
833
    golomb
834
    gpl
835
    gprof
836
    gray
Aurelien Jacobs's avatar
Aurelien Jacobs committed
837
    hardcoded_tables
838
    ipv6
Ramiro Polla's avatar
Ramiro Polla committed
839
    libdc1394
840
    libdirac
841 842 843
    libfaac
    libfaad
    libfaadbin
844
    libgsm
845
    libmp3lame
846
    libnut
847 848
    libopencore_amrnb
    libopencore_amrwb
849
    libopenjpeg
850
    libschroedinger
David Conrad's avatar
David Conrad committed
851
    libspeex
Diego Biurrun's avatar
Diego Biurrun committed
852
    libtheora
853
    libvorbis
854 855
    libx264
    libxvid
856
    lpc
857
    mdct
858
    memalign_hack
859
    mlib
860 861
    mpegaudio_hp
    network
862
    nonfree
863
    pic
864
    postproc
865
    powerpc_perf
866
    rdft
867
    runtime_cpudetect
868
    shared
869
    small
870
    static
871
    swscale_alpha
872 873
    vaapi
    vdpau
874
    version3
875
    x11grab
876
    zlib
877
"
878

879 880
THREADS_LIST='
    beosthreads
881
    os2threads
882 883 884 885
    pthreads
    w32threads
'

886 887
ARCH_LIST='
    alpha
888
    arm
889 890 891
    avr32
    avr32_ap
    avr32_uc
892 893 894 895
    bfin
    ia64
    m68k
    mips
896
    mips64
897
    parisc
898
    ppc
899
    ppc64
900 901 902 903 904 905 906 907 908 909
    s390
    sh4
    sparc
    sparc64
    x86
    x86_32
    x86_64
'

ARCH_EXT_LIST='
910
    altivec
911
    amd3dnow
912
    amd3dnowext
913
    armv5te
914
    armv6
915
    armv6t2
Måns Rullgård's avatar
Måns Rullgård committed
916
    armvfp
917 918 919
    iwmmxt
    mmi
    mmx
920
    mmx2
921
    neon
922
    ppc4xx
923
    sse
924
    ssse3
925
    vis
926 927 928 929 930
'

HAVE_LIST="
    $ARCH_EXT_LIST
    $THREADS_LIST
931
    alsa_asoundlib_h
932
    altivec_h
933
    arpa_inet_h