configure 74.6 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 78 79
  echo "  --enable-gpl             allow use of GPL code, the resulting libs"
  echo "                           and binaries will be under GPL [no]"
  echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
  echo "                           and binaries will be unredistributable [no]"
80 81 82
  echo "  --disable-ffmpeg         disable ffmpeg build"
  echo "  --disable-ffplay         disable ffplay build"
  echo "  --disable-ffserver       disable ffserver build"
83
  echo "  --enable-postproc        enable GPLed postprocessing support [no]"
84
  echo "  --enable-avfilter        video filter support [no]"
85
  echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
86 87 88 89 90
  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]"
91 92 93 94
  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)"
95
  echo "  --disable-swscale-alpha  disable alpha channel support in swscale"
96
  echo "  --disable-fastdiv        disable table-based division"
97 98 99 100 101
  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"
  echo "  --disable-mdct           disable MDCT code"
102
  echo "  --disable-rdft           disable RDFT code"
103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142
  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"
  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"
  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"
  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"
143 144
  echo
  echo "External library support:"
145
  echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
146 147 148
  echo "  --enable-bzlib           enable bzlib [autodetect]"
  echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
  echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
Ramiro Polla's avatar
Ramiro Polla committed
149
  echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
150 151 152 153 154 155 156
  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]"
157
  echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
158
  echo "                           native (de)muxer exists [no]"
159
  echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
160 161 162
  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]"
163
  echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
164 165
  echo "                           native implementation exists [no]"
  echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
166
  echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
167
  echo "                           native MPEG-4/Xvid encoder exists [no]"
Diego Biurrun's avatar
Diego Biurrun committed
168
  echo "  --enable-mlib            enable Sun medialib [no]"
169
  echo "  --enable-zlib            enable zlib [autodetect]"
170 171 172 173
  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 [$cross_prefix]"
174
  echo "  --enable-cross-compile   assume a cross-compiler is used"
175 176
  echo "  --sysroot=PATH           root of cross-build tree"
  echo "  --sysinclude=PATH        location of cross-build system headers"
177
  echo "  --target-os=OS           compiler targets OS [$target_os]"
178 179
  echo "  --target-exec=CMD        command to run executables on target"
  echo "  --target-path=DIR        path to view of build directory on target"
180
  echo "  --nm=NM                  use nm tool"
181
  echo "  --as=AS                  use assembler AS [$as_default]"
182
  echo "  --cc=CC                  use C compiler CC [$cc_default]"
183 184 185 186
  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"
187 188 189
  echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
  echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
  echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
190
  echo "  --extra-version=STRING   version string suffix []"
191 192 193
  echo "  --build-suffix=SUFFIX    library name suffix []"
  echo "  --arch=ARCH              select architecture [$arch]"
  echo "  --cpu=CPU                select the minimum required CPU (affects"
194
  echo "                           instruction selection, may crash on older CPUs)"
195
  echo "  --enable-powerpc-perf    enable performance report on PPC"
196
  echo "                           (requires enabling PMC)"
197
  echo "  --disable-altivec        disable AltiVec optimizations"
198
  echo "  --disable-amd3dnow       disable 3DNow! optimizations"
199
  echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
200 201
  echo "  --disable-mmx            disable MMX optimizations"
  echo "  --disable-mmx2           disable MMX2 optimizations"
202
  echo "  --disable-sse            disable SSE optimizations"
203 204 205
  echo "  --disable-ssse3          disable SSSE3 optimizations"
  echo "  --disable-armv5te        disable armv5te optimizations"
  echo "  --disable-armv6          disable armv6 optimizations"
206
  echo "  --disable-armv6t2        disable armv6t2 optimizations"
Diego Biurrun's avatar
Diego Biurrun committed
207
  echo "  --disable-armvfp         disable ARM VFP optimizations"
208
  echo "  --disable-iwmmxt         disable iwmmxt optimizations"
209 210 211
  echo "  --disable-mmi            disable MMI optimizations"
  echo "  --disable-neon           disable neon optimizations"
  echo "  --disable-vis            disable VIS optimizations"
212
  echo "  --disable-yasm           disable use of yasm assembler"
213 214
  echo
  echo "Developer options (useful when working on FFmpeg itself):"
215
  echo "  --disable-debug          disable debugging symbols"
216
  echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
217
  echo "  --enable-gprof           enable profiling with gprof [$gprof]"
218
  echo "  --disable-optimizations  disable compiler optimizations"
219
  echo "  --enable-extra-warnings  enable more compiler warnings"
220
  echo "  --disable-stripping      disable stripping of executables and shared libraries"
221 222
  echo ""
  echo "NOTE: Object files are built at the place where configure is launched."
223
  exit 0
224
}
225

226
log(){
227
    echo "$@" >> $logfile
228 229
}

230
log_file(){
Måns Rullgård's avatar
Måns Rullgård committed
231
    log BEGIN $1
232
    pr -n -t $1 >> $logfile
Måns Rullgård's avatar
Måns Rullgård committed
233 234 235
    log END $1
}

236
echolog(){
Måns Rullgård's avatar
Måns Rullgård committed
237
    log "$@"
238
    echo "$@"
239 240 241 242 243
}

die(){
    echolog "$@"
    cat <<EOF
244

245 246
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
247
ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
248
EOF
249
    if disabled logging; then
250
        cat <<EOF
251 252
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
253 254 255
EOF
    else
cat <<EOF
256 257
Include the log file "$logfile" produced by configure as this will help
solving the problem.
258 259
EOF
    fi
260 261 262
    exit 1
}

263
# Avoid locale weirdness, besides we really just want to translate ASCII.
264
toupper(){
265
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
266 267
}

Måns Rullgård's avatar
Måns Rullgård committed
268
tolower(){
269
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
Måns Rullgård's avatar
Måns Rullgård committed
270 271
}

272 273 274 275
c_escape(){
    echo "$*" | sed 's/["\\]/\\\0/g'
}

276 277 278 279 280 281 282 283
set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}

284 285 286 287 288 289 290 291
set_weak(){
    value=$1
    shift
    for var; do
        eval : \${$var:=$value}
    done
}

292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310
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
}

311 312 313 314 315 316 317 318
enable(){
    set_all yes $*
}

disable(){
    set_all no $*
}

319 320 321 322 323 324 325 326
enable_weak(){
    set_weak yes $*
}

disable_weak(){
    set_weak no $*
}

327 328 329 330 331 332 333 334
enable_safe(){
    enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
}

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

335 336 337 338
do_enable_deep(){
    for var; do
        enabled $var && continue
        eval sel="\$${var}_select"
339 340
        eval sgs="\$${var}_suggest"
        pushvar var sgs
341
        enable_deep $sel
342 343
        popvar sgs
        enable_deep_weak $sgs
344 345 346 347 348 349 350 351 352
        popvar var
    done
}

enable_deep(){
    do_enable_deep $*
    enable $*
}

353 354 355 356 357
enable_deep_weak(){
    do_enable_deep $*
    enable_weak $*
}

358
enabled(){
359 360
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xyes"
361 362
}

363
disabled(){
364 365
    test "${1#!}" = "$1" && op== || op=!=
    eval test "x\$${1#!}" $op "xno"
366 367
}

368 369 370 371 372 373
enabled_all(){
    for opt; do
        enabled $opt || return 1
    done
}

374 375 376 377 378 379
disabled_all(){
    for opt; do
        disabled $opt || return 1
    done
}

380 381 382 383 384 385
enabled_any(){
    for opt; do
        enabled $opt && return 0
    done
}

386 387 388 389
disabled_any(){
    for opt; do
        disabled $opt && return 0
    done
390
    return 1
391 392
}

393 394
set_default(){
    for opt; do
395
        eval : \${$opt:=\$${opt}_default}
396 397 398
    done
}

399 400 401 402 403 404 405 406 407
is_in(){
    value=$1
    shift
    for var in $*; do
        [ $var = $value ] && return 0
    done
    return 1
}

408 409
check_deps(){
    for cfg; do
410
        cfg="${cfg#!}"
411 412 413 414
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
        disabled ${cfg}_checking && continue
        enable ${cfg}_checking

415 416
        eval dep_all="\$${cfg}_deps"
        eval dep_any="\$${cfg}_deps_any"
417
        eval dep_sel="\$${cfg}_select"
418
        eval dep_sgs="\$${cfg}_suggest"
419

420 421 422
        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
423

Måns Rullgård's avatar
Måns Rullgård committed
424 425
        enabled_all  $dep_all || disable $cfg
        enabled_any  $dep_any || disable $cfg
426
        disabled_any $dep_sel && disable $cfg
427

428 429 430
        if enabled $cfg; then
            eval dep_extralibs="\$${cfg}_extralibs"
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
431
            enable_deep $dep_sel
432
            enable_deep_weak $dep_sgs
433 434
        fi

435
        disable ${cfg}_checking
436 437 438
    done
}

439 440 441 442 443 444
print_config(){
    pfx=$1
    header=$2
    makefile=$3
    shift 3
    for cfg; do
445
        ucname="$(toupper $cfg)"
446
        if enabled $cfg; then
447 448 449
            echo "#define ${pfx}${ucname} 1" >> $header
            echo "${pfx}${ucname}=yes" >> $makefile
        else
450
            echo "#define ${pfx}${ucname} 0" >> $header
451 452
        fi
    done
453 454 455
}

flags_saved(){
456
    (: ${SAVE_CFLAGS?}) 2> /dev/null
457 458
}

459
save_flags(){
460
    flags_saved && return
461 462 463 464 465 466
    SAVE_CFLAGS="$CFLAGS"
    SAVE_LDFLAGS="$LDFLAGS"
    SAVE_extralibs="$extralibs"
}

restore_flags(){
467
    flags_saved || return
468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490
    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 $*"
}

491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509
append(){
    var=$1
    shift
    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
    eval "$var=\"\$$var $*\""
}

add_cflags(){
    append CFLAGS "$@"
}

add_ldflags(){
    append LDFLAGS "$@"
}

add_extralibs(){
    append extralibs "$@"
}

510
check_cmd(){
Måns Rullgård's avatar
Måns Rullgård committed
511
    log "$@"
512
    "$@" >> $logfile 2>&1
513 514
}

515
check_cc(){
516
    log check_cc "$@"
517
    cat > $TMPC
518
    log_file $TMPC
519
    check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
520 521 522 523
}

check_cpp(){
    log check_cpp "$@"
524
    cat > $TMPC
525
    log_file $TMPC
526
    check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
527 528
}

529 530 531 532 533 534 535
check_as(){
    log check_as "$@"
    cat > $TMPC
    log_file $TMPC
    check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
}

536 537 538 539 540
check_asm(){
    log check_asm "$@"
    name="$1"
    asm="$2"
    shift 2
541
    check_as "$@" <<EOF && enable $name || disable $name
542
void foo(void){ __asm__ volatile($asm); }
543 544 545
EOF
}

Loren Merritt's avatar
Loren Merritt committed
546 547 548 549 550 551 552 553
check_yasm(){
    log check_yasm "$@"
    echo "$1" > $TMPS
    log_file $TMPS
    shift 1
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
}

554
check_ld(){
555
    log check_ld "$@"
556
    check_cc || return
557 558 559 560 561 562
    flags=''
    libs=''
    for f; do
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
    done
    check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
563 564 565
}

check_cflags(){
566 567
    log check_cflags "$@"
    check_cc "$@" <<EOF && add_cflags "$@"
568 569 570 571 572
int x;
EOF
}

check_ldflags(){
573 574
    log check_ldflags "$@"
    check_ld "$@" <<EOF && add_ldflags "$@"
575
int main(void){ return 0; }
576 577 578 579
EOF
}

check_header(){
580
    log check_header "$@"
581 582
    header=$1
    shift
583 584
    disable_safe $header
    check_cpp "$@" <<EOF && enable_safe $header
585 586 587 588 589 590
#include <$header>
int x;
EOF
}

check_func(){
591
    log check_func "$@"
592 593
    func=$1
    shift
Måns Rullgård's avatar
Måns Rullgård committed
594 595
    disable $func
    check_ld "$@" <<EOF && enable $func
596
extern int $func();
597
int main(void){ $func(); }
598 599 600
EOF
}

601 602
check_func_headers(){
    log check_func_headers "$@"
603 604 605 606 607 608 609 610 611
    headers=$1
    func=$2
    shift 2
    disable $func
    incs=""
    for hdr in $headers; do
        incs="$incs
#include <$hdr>"
    done
612
    check_ld "$@" <<EOF && enable $func && enable_safe $headers
613
$incs
614
int main(int argc, char **argv){
615 616 617 618 619 620
    (void) $func;
    return 0;
}
EOF
}

621 622 623 624 625 626 627 628 629 630 631 632
check_cpp_condition(){
    log check_cpp_condition "$@"
    header=$1
    condition=$2
    check_cpp <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}

633 634 635 636 637
check_lib(){
    log check_lib "$@"
    header="$1"
    func="$2"
    shift 2
638 639 640 641 642
    temp_extralibs "$@"
    check_header $header && check_func $func && add_extralibs "$@"
    err=$?
    restore_flags
    return $err
643 644
}

645 646 647 648 649 650
check_lib2(){
    log check_lib2 "$@"
    headers="$1"
    func="$2"
    shift 2
    temp_extralibs "$@"
651
    check_func_headers "$headers" $func && add_extralibs "$@"
652 653 654 655 656
    err=$?
    restore_flags
    return $err
}

657
check_exec(){
658
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
659 660
}

661
check_exec_crash(){
662
    code=$(cat)
663 664 665 666 667 668 669

    # 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.

670
    (check_exec "$@") >> $logfile 2>&1 <<EOF
671 672 673 674
#include <signal.h>
static void sighandler(int sig){
    raise(SIGTERM);
}
Diego Biurrun's avatar
Diego Biurrun committed
675
int main(void){
676 677 678 679 680 681 682 683 684 685 686
    signal(SIGILL, sighandler);
    signal(SIGFPE, sighandler);
    signal(SIGSEGV, sighandler);
#ifdef SIGBUS
    signal(SIGBUS, sighandler);
#endif
    { $code }
}
EOF
}

687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703
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
}

704 705 706 707 708 709
require(){
    name="$1"
    header="$2"
    func="$3"
    shift 3
    check_lib $header $func "$@" || die "ERROR: $name not found"
710 711
}

712 713 714 715 716 717 718 719
require2(){
    name="$1"
    headers="$2"
    func="$3"
    shift 3
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
}

720 721 722 723 724 725 726 727 728 729
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
730 731
        temp_cflags $(${pkg}-config --cflags)
        temp_extralibs $(${pkg}-config --libs)
732 733 734 735 736
        check_lib "$@" $header $func && enable $cfg
    fi
    return $err
}

737 738 739 740 741 742
apply(){
    file=$1
    shift
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
}

743 744 745
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
# system-dependent things.

746 747 748 749 750
COMPONENT_LIST="
    bsfs
    decoders
    demuxers
    encoders
Vitor Sessak's avatar
Vitor Sessak committed
751
    filters
752
    indevs
753
    muxers
754
    outdevs
755 756 757 758 759 760
    parsers
    protocols
"

CONFIG_LIST="
    $COMPONENT_LIST
761
    aandct
762 763
    avfilter
    avfilter_lavf
764 765
    avisynth
    beos_netserver
766
    bzlib
767
    fastdiv
768 769 770
    ffmpeg
    ffplay
    ffserver
771
    fft
772
    golomb
773
    gpl
774
    gprof
775
    gray
Aurelien Jacobs's avatar
Aurelien Jacobs committed
776
    hardcoded_tables
777
    ipv6
778 779
    libamr_nb
    libamr_wb
Ramiro Polla's avatar
Ramiro Polla committed
780
    libdc1394
781
    libdirac
782 783 784
    libfaac
    libfaad
    libfaadbin
785
    libgsm
786
    libmp3lame
787
    libnut
788
    libopenjpeg
789
    libschroedinger
David Conrad's avatar
David Conrad committed
790
    libspeex
Diego Biurrun's avatar
Diego Biurrun committed
791
    libtheora
792
    libvorbis
793 794
    libx264
    libxvid
795
    mdct
796
    memalign_hack
797
    mlib
798 799
    mpegaudio_hp
    network
800
    nonfree
801
    postproc
802
    powerpc_perf
803
    rdft
804
    shared
805
    small
806
    static
807
    swscale_alpha
808
    x11grab
809
    zlib
810
"
811

812 813
THREADS_LIST='
    beosthreads
814
    os2threads
815 816 817 818
    pthreads
    w32threads
'

819 820
ARCH_LIST='
    alpha
821
    arm
822 823 824 825 826
    bfin
    ia64
    m68k
    mips
    parisc
827
    ppc
828 829 830 831 832 833 834 835 836 837
    s390
    sh4
    sparc
    sparc64
    x86
    x86_32
    x86_64
'

ARCH_EXT_LIST='
838
    altivec
839
    amd3dnow
840
    amd3dnowext
841
    armv5te
842
    armv6
843
    armv6t2
Måns Rullgård's avatar
Måns Rullgård committed
844
    armvfp
845 846 847
    iwmmxt
    mmi
    mmx
848
    mmx2
849
    neon
850
    ppc4xx
851
    sse
852
    ssse3
853
    vis
854 855 856 857 858
'

HAVE_LIST="
    $ARCH_EXT_LIST
    $THREADS_LIST
859
    alsa_asoundlib_h
860
    altivec_h
861
    arpa_inet_h
862
    bswap
Alex Beregszaszi's avatar
Alex Beregszaszi committed
863
    closesocket
864
    cmov
865
    conio_h
866
    dcbzl
867 868 869 870 871
    dev_bktr_ioctl_bt848_h
    dev_bktr_ioctl_meteor_h
    dev_ic_bt8xx_h
    dev_video_meteor_ioctl_meteor_h
    dev_video_bktr_ioctl_bt848_h
872
    dlfcn_h
873
    dlopen
874
    dos_paths
875 876
    ebp_available
    ebx_available
877
    fast_64bit
878
    fast_cmov
879
    fast_unaligned
Måns Rullgård's avatar
Måns Rullgård committed
880
    fork
881
    gethrtime
882
    GetProcessTimes
Ramiro Polla's avatar
Ramiro Polla committed
883
    getrusage
884
    inet_aton
Måns Rullgård's avatar
Måns Rullgård committed
885
    inline_asm
886 887
    libdc1394_1
    libdc1394_2
888 889
    llrint
    lrint
890
    lrintf
891 892
    machine_ioctl_bt848_h
    machine_ioctl_meteor_h
893 894
    malloc_h
    memalign
Ramiro Polla's avatar
Ramiro Polla committed
895
    mkstemp
896
    pld
897
    posix_memalign
Måns Rullgård's avatar
Måns Rullgård committed
898
    ppc64
899 900
    round
    roundf
901 902
    sdl
    sdl_video_size
903
    setmode
904
    socklen_t
Måns Rullgård's avatar
Måns Rullgård committed
905
    soundcard_h
906
    poll_h
907
    sys_mman_h
908
    sys_resource_h
909
    sys_select_h
Måns Rullgård's avatar
Måns Rullgård committed
910
    sys_soundcard_h
911
    sys_videoio_h
912
    ten_operands
913
    termios_h
914
    threads
915
    truncf
916
    VirtualAlloc
917
    winsock2_h
Loren Merritt's avatar
Loren Merritt committed
918
    yasm
919
"
920

921 922 923 924
# options emitted with CONFIG_ prefix but not available on command line
CONFIG_EXTRA="
"

925
CMDLINE_SELECT="
926
    $ARCH_EXT_LIST
927
    $CONFIG_LIST
928
    $THREADS_LIST
929
    cross_compile