granicus.if.org Git - libvpx/blob - configure

   1 #!/bin/sh
   2 ##
   3 ##  configure
   4 ##
   5 ##  This script is the front-end to the build system. It provides a similar
   6 ##  interface to standard configure scripts with some extra bits for dealing
   7 ##  with toolchains that differ from the standard POSIX interface and
   8 ##  for extracting subsets of the source tree. In theory, reusable parts
   9 ##  of this script were intended to live in build/make/configure.sh,
  10 ##  but in practice, the line is pretty blurry.
  11 ##
  12 ##  This build system is based in part on the FFmpeg configure script.
  13 ##
  14
  15 #source_path="`dirname \"$0\"`"
  16 source_path=${0%/*}
  17 . "${source_path}/build/make/configure.sh"
  18
  19 show_help(){
  20     show_help_pre
  21     cat << EOF
  22 Advanced options:
  23   ${toggle_libs}                  libraries
  24   ${toggle_examples}              examples
  25   ${toggle_docs}                  documentation
  26   ${toggle_unit_tests}            unit tests
  27   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
  28   ${toggle_encode_perf_tests}     build encoder perf tests with unit tests
  29   --libc=PATH                     path to alternate libc
  30   --size-limit=WxH                max size to allow in the decoder
  31   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  32   --sdk-path=PATH                 path to root of sdk (android builds only)
  33   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  34                                   supported by hardware [auto]
  35   ${toggle_codec_srcs}            in/exclude codec library source code
  36   ${toggle_debug_libs}            in/exclude debug version of libraries
  37   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  38   ${toggle_vp8}                   VP8 codec support
  39   ${toggle_vp9}                   VP9 codec support
  40   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  41   ${toggle_mem_tracker}           track memory usage
  42   ${toggle_postproc}              postprocessing
  43   ${toggle_vp9_postproc}          vp9 specific postprocessing
  44   ${toggle_multithread}           multithreaded encoding and decoding
  45   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  46   ${toggle_realtime_only}         enable this option while building for real-time encoding
  47   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  48   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  49   ${toggle_coefficient_range_checking}
  50                                   enable decoder to check if intermediate
  51                                   transform coefficients are in valid range
  52   ${toggle_runtime_cpu_detect}    runtime cpu detection
  53   ${toggle_shared}                shared library support
  54   ${toggle_static}                static library support
  55   ${toggle_small}                 favor smaller size over speed
  56   ${toggle_postproc_visualizer}   macro block / block level visualizers
  57   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  58   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  59   ${toggle_webm_io}               enable input from and output to WebM container
  60   ${toggle_libyuv}                enable libyuv
  61
  62 Codecs:
  63   Codecs can be selectively enabled or disabled individually, or by family:
  64       --disable-<codec>
  65   is equivalent to:
  66       --disable-<codec>-encoder
  67       --disable-<codec>-decoder
  68
  69   Codecs available in this distribution:
  70 EOF
  71 #restore editor state '
  72
  73     family="";
  74     last_family="";
  75     c="";
  76     str="";
  77     for c in ${CODECS}; do
  78         family=${c%_*}
  79         if [ "${family}" != "${last_family}" ]; then
  80             [ -z "${str}" ] || echo "${str}"
  81             str="$(printf '    %10s:' ${family})"
  82         fi
  83         str="${str} $(printf '%10s' ${c#*_})"
  84         last_family=${family}
  85     done
  86     echo "${str}"
  87     show_help_post
  88 }
  89
  90 ##
  91 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  92 ##
  93
  94 # all_platforms is a list of all supported target platforms. Maintain
  95 # alphabetically by architecture, generic-gnu last.
  96 all_platforms="${all_platforms} armv5te-android-gcc"
  97 all_platforms="${all_platforms} armv5te-linux-rvct"
  98 all_platforms="${all_platforms} armv5te-linux-gcc"
  99 all_platforms="${all_platforms} armv5te-none-rvct"
 100 all_platforms="${all_platforms} armv6-darwin-gcc"
 101 all_platforms="${all_platforms} armv6-linux-rvct"
 102 all_platforms="${all_platforms} armv6-linux-gcc"
 103 all_platforms="${all_platforms} armv6-none-rvct"
 104 all_platforms="${all_platforms} arm64-darwin-gcc"
 105 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 106 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 107 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 108 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 109 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 110 all_platforms="${all_platforms} armv7-win32-vs11"
 111 all_platforms="${all_platforms} armv7-win32-vs12"
 112 all_platforms="${all_platforms} armv7s-darwin-gcc"
 113 all_platforms="${all_platforms} mips32-linux-gcc"
 114 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 115 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 116 all_platforms="${all_platforms} ppc32-linux-gcc"
 117 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 118 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 119 all_platforms="${all_platforms} ppc64-linux-gcc"
 120 all_platforms="${all_platforms} sparc-solaris-gcc"
 121 all_platforms="${all_platforms} x86-android-gcc"
 122 all_platforms="${all_platforms} x86-darwin8-gcc"
 123 all_platforms="${all_platforms} x86-darwin8-icc"
 124 all_platforms="${all_platforms} x86-darwin9-gcc"
 125 all_platforms="${all_platforms} x86-darwin9-icc"
 126 all_platforms="${all_platforms} x86-darwin10-gcc"
 127 all_platforms="${all_platforms} x86-darwin11-gcc"
 128 all_platforms="${all_platforms} x86-darwin12-gcc"
 129 all_platforms="${all_platforms} x86-darwin13-gcc"
 130 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 131 all_platforms="${all_platforms} x86-linux-gcc"
 132 all_platforms="${all_platforms} x86-linux-icc"
 133 all_platforms="${all_platforms} x86-os2-gcc"
 134 all_platforms="${all_platforms} x86-solaris-gcc"
 135 all_platforms="${all_platforms} x86-win32-gcc"
 136 all_platforms="${all_platforms} x86-win32-vs7"
 137 all_platforms="${all_platforms} x86-win32-vs8"
 138 all_platforms="${all_platforms} x86-win32-vs9"
 139 all_platforms="${all_platforms} x86-win32-vs10"
 140 all_platforms="${all_platforms} x86-win32-vs11"
 141 all_platforms="${all_platforms} x86-win32-vs12"
 142 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 143 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 144 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 145 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 147 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 148 all_platforms="${all_platforms} x86_64-linux-gcc"
 149 all_platforms="${all_platforms} x86_64-linux-icc"
 150 all_platforms="${all_platforms} x86_64-solaris-gcc"
 151 all_platforms="${all_platforms} x86_64-win64-gcc"
 152 all_platforms="${all_platforms} x86_64-win64-vs8"
 153 all_platforms="${all_platforms} x86_64-win64-vs9"
 154 all_platforms="${all_platforms} x86_64-win64-vs10"
 155 all_platforms="${all_platforms} x86_64-win64-vs11"
 156 all_platforms="${all_platforms} x86_64-win64-vs12"
 157 all_platforms="${all_platforms} universal-darwin8-gcc"
 158 all_platforms="${all_platforms} universal-darwin9-gcc"
 159 all_platforms="${all_platforms} universal-darwin10-gcc"
 160 all_platforms="${all_platforms} universal-darwin11-gcc"
 161 all_platforms="${all_platforms} universal-darwin12-gcc"
 162 all_platforms="${all_platforms} universal-darwin13-gcc"
 163 all_platforms="${all_platforms} generic-gnu"
 164
 165 # all_targets is a list of all targets that can be configured
 166 # note that these should be in dependency order for now.
 167 all_targets="libs examples docs"
 168
 169 # all targets available are enabled, by default.
 170 for t in ${all_targets}; do
 171     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 172 done
 173
 174 if ! perl --version >/dev/null; then
 175     die "Perl is required to build"
 176 fi
 177
 178
 179 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 180   # test to see if source_path already configured
 181   if [ -f "${source_path}/vpx_config.h" ]; then
 182     die "source directory already configured; run 'make distclean' there first"
 183   fi
 184 fi
 185
 186 # check installed doxygen version
 187 doxy_version=$(doxygen --version 2>/dev/null)
 188 doxy_major=${doxy_version%%.*}
 189 if [ ${doxy_major:-0} -ge 1 ]; then
 190     doxy_version=${doxy_version#*.}
 191     doxy_minor=${doxy_version%%.*}
 192     doxy_patch=${doxy_version##*.}
 193
 194     [ $doxy_major -gt 1 ] && enable_feature doxygen
 195     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 196     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 197 fi
 198
 199 # install everything except the sources, by default. sources will have
 200 # to be enabled when doing dist builds, since that's no longer a common
 201 # case.
 202 enabled doxygen && enable_feature install_docs
 203 enable_feature install_bins
 204 enable_feature install_libs
 205
 206 enable_feature static
 207 enable_feature optimizations
 208 enable_feature fast_unaligned #allow unaligned accesses, if supported by hw
 209 enable_feature spatial_resampling
 210 enable_feature multithread
 211 enable_feature os_support
 212 enable_feature temporal_denoising
 213
 214 [ -d "${source_path}/../include" ] && enable_feature alt_tree_layout
 215 for d in vp8 vp9; do
 216     [ -d "${source_path}/${d}" ] && disable_feature alt_tree_layout;
 217 done
 218
 219 if ! enabled alt_tree_layout; then
 220 # development environment
 221 [ -d "${source_path}/vp8" ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 222 [ -d "${source_path}/vp9" ] && CODECS="${CODECS} vp9_encoder vp9_decoder"
 223 else
 224 # customer environment
 225 [ -f "${source_path}/../include/vpx/vp8cx.h" ] && CODECS="${CODECS} vp8_encoder"
 226 [ -f "${source_path}/../include/vpx/vp8dx.h" ] && CODECS="${CODECS} vp8_decoder"
 227 [ -f "${source_path}/../include/vpx/vp9cx.h" ] && CODECS="${CODECS} vp9_encoder"
 228 [ -f "${source_path}/../include/vpx/vp9dx.h" ] && CODECS="${CODECS} vp9_decoder"
 229 [ -f "${source_path}/../include/vpx/vp8cx.h" ] || disable_feature vp8_encoder
 230 [ -f "${source_path}/../include/vpx/vp8dx.h" ] || disable_feature vp8_decoder
 231 [ -f "${source_path}/../include/vpx/vp9cx.h" ] || disable_feature vp9_encoder
 232 [ -f "${source_path}/../include/vpx/vp9dx.h" ] || disable_feature vp9_decoder
 233
 234 [ -f "${source_path}/../lib/*/*mt.lib" ] && soft_enable static_msvcrt
 235 fi
 236
 237 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 238 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 239
 240 ARCH_LIST="
 241     arm
 242     mips
 243     x86
 244     x86_64
 245     ppc32
 246     ppc64
 247 "
 248 ARCH_EXT_LIST="
 249     edsp
 250     media
 251     neon
 252     neon_asm
 253
 254     mips32
 255     dspr2
 256
 257     mmx
 258     sse
 259     sse2
 260     sse3
 261     ssse3
 262     sse4_1
 263     avx
 264     avx2
 265
 266     altivec
 267 "
 268 HAVE_LIST="
 269     ${ARCH_EXT_LIST}
 270     vpx_ports
 271     stdint_h
 272     alt_tree_layout
 273     pthread_h
 274     sys_mman_h
 275     unistd_h
 276 "
 277 EXPERIMENT_LIST="
 278     spatial_svc
 279     vp9_temporal_denoising
 280     fp_mb_stats
 281 "
 282 CONFIG_LIST="
 283     external_build
 284     install_docs
 285     install_bins
 286     install_libs
 287     install_srcs
 288     use_x86inc
 289     debug
 290     gprof
 291     gcov
 292     rvct
 293     gcc
 294     msvs
 295     pic
 296     big_endian
 297
 298     codec_srcs
 299     debug_libs
 300     fast_unaligned
 301     mem_manager
 302     mem_tracker
 303     mem_checks
 304
 305     dequant_tokens
 306     dc_recon
 307     runtime_cpu_detect
 308     postproc
 309     vp9_postproc
 310     multithread
 311     internal_stats
 312     ${CODECS}
 313     ${CODEC_FAMILIES}
 314     encoders
 315     decoders
 316     static_msvcrt
 317     spatial_resampling
 318     realtime_only
 319     onthefly_bitpacking
 320     error_concealment
 321     shared
 322     static
 323     small
 324     postproc_visualizer
 325     os_support
 326     unit_tests
 327     webm_io
 328     libyuv
 329     decode_perf_tests
 330     encode_perf_tests
 331     multi_res_encoding
 332     temporal_denoising
 333     coefficient_range_checking
 334     experimental
 335     size_limit
 336     ${EXPERIMENT_LIST}
 337 "
 338 CMDLINE_SELECT="
 339     external_build
 340     extra_warnings
 341     werror
 342     install_docs
 343     install_bins
 344     install_libs
 345     install_srcs
 346     debug
 347     gprof
 348     gcov
 349     pic
 350     use_x86inc
 351     optimizations
 352     ccache
 353     runtime_cpu_detect
 354     thumb
 355
 356     libs
 357     examples
 358     docs
 359     libc
 360     as
 361     size_limit
 362     fast_unaligned
 363     codec_srcs
 364     debug_libs
 365
 366     dequant_tokens
 367     dc_recon
 368     postproc
 369     vp9_postproc
 370     multithread
 371     internal_stats
 372     ${CODECS}
 373     ${CODEC_FAMILIES}
 374     static_msvcrt
 375     mem_tracker
 376     spatial_resampling
 377     realtime_only
 378     onthefly_bitpacking
 379     error_concealment
 380     shared
 381     static
 382     small
 383     postproc_visualizer
 384     unit_tests
 385     webm_io
 386     libyuv
 387     decode_perf_tests
 388     encode_perf_tests
 389     multi_res_encoding
 390     temporal_denoising
 391     coefficient_range_checking
 392     experimental
 393 "
 394
 395 process_cmdline() {
 396     for opt do
 397         optval="${opt#*=}"
 398         case "$opt" in
 399         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 400         --enable-?*|--disable-?*)
 401         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 402         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 403             if enabled experimental; then
 404                 ${action}_feature $option
 405             else
 406                 log_echo "Ignoring $opt -- not in experimental mode."
 407             fi
 408         else
 409             process_common_cmdline $opt
 410         fi
 411         ;;
 412         *) process_common_cmdline "$opt"
 413         ;;
 414         esac
 415     done
 416 }
 417
 418 post_process_cmdline() {
 419     c=""
 420
 421     # If the codec family is disabled, disable all components of that family.
 422     # If the codec family is enabled, enable all components of that family.
 423     log_echo "Configuring selected codecs"
 424     for c in ${CODECS}; do
 425         disabled ${c%%_*} && disable_feature ${c}
 426         enabled ${c%%_*} && enable_feature ${c}
 427     done
 428
 429     # Enable all detected codecs, if they haven't been disabled
 430     for c in ${CODECS}; do soft_enable $c; done
 431
 432     # Enable the codec family if any component of that family is enabled
 433     for c in ${CODECS}; do
 434         enabled $c && enable_feature ${c%_*}
 435     done
 436
 437     # Set the {en,de}coders variable if any algorithm in that class is enabled
 438     for c in ${CODECS}; do
 439         enabled ${c} && enable_feature ${c##*_}s
 440     done
 441 }
 442
 443
 444 process_targets() {
 445     enabled child || write_common_config_banner
 446     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 447
 448     # TODO: add host tools target (obj_int_extract, etc)
 449
 450     # For fat binaries, call configure recursively to configure for each
 451     # binary architecture to be included.
 452     if enabled universal; then
 453         # Call configure (ourselves) for each subarchitecture
 454         for arch in $fat_bin_archs; do
 455             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 456         done
 457     fi
 458
 459     # The write_common_config (config.mk) logic is deferred until after the
 460     # recursive calls to configure complete, because we want our universal
 461     # targets to be executed last.
 462     write_common_config_targets
 463     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 464
 465     # Calculate the default distribution name, based on the enabled features
 466     cf=""
 467     DIST_DIR=vpx
 468     for cf in $CODEC_FAMILIES; do
 469         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 470             DIST_DIR="${DIST_DIR}-${cf}"
 471         elif enabled ${cf}_encoder; then
 472             DIST_DIR="${DIST_DIR}-${cf}cx"
 473         elif enabled ${cf}_decoder; then
 474             DIST_DIR="${DIST_DIR}-${cf}dx"
 475         fi
 476     done
 477     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 478     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 479     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 480     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 481     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 482     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 483     case "${tgt_os}" in
 484     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 485           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 486           ;;
 487     esac
 488     if [ -f "${source_path}/build/make/version.sh" ]; then
 489         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 490         DIST_DIR="${DIST_DIR}-${ver}"
 491         VERSION_STRING=${ver}
 492         ver=${ver%%-*}
 493         VERSION_PATCH=${ver##*.}
 494         ver=${ver%.*}
 495         VERSION_MINOR=${ver##*.}
 496         ver=${ver#v}
 497         VERSION_MAJOR=${ver%.*}
 498     fi
 499     enabled child || cat <<EOF >> config.mk
 500
 501 PREFIX=${prefix}
 502 ifeq (\$(MAKECMDGOALS),dist)
 503 DIST_DIR?=${DIST_DIR}
 504 else
 505 DIST_DIR?=\$(DESTDIR)${prefix}
 506 endif
 507 LIBSUBDIR=${libdir##${prefix}/}
 508
 509 VERSION_STRING=${VERSION_STRING}
 510
 511 VERSION_MAJOR=${VERSION_MAJOR}
 512 VERSION_MINOR=${VERSION_MINOR}
 513 VERSION_PATCH=${VERSION_PATCH}
 514
 515 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 516 EOF
 517     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 518
 519     #
 520     # Write makefiles for all enabled targets
 521     #
 522     for tgt in libs examples docs solution; do
 523         tgt_fn="$tgt-$toolchain.mk"
 524
 525         if enabled $tgt; then
 526             echo "Creating makefiles for ${toolchain} ${tgt}"
 527             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 528             #write_${tgt}_config
 529         fi
 530     done
 531
 532 }
 533
 534 process_detect() {
 535     if enabled shared; then
 536         # Can only build shared libs on a subset of platforms. Doing this check
 537         # here rather than at option parse time because the target auto-detect
 538         # magic happens after the command line has been parsed.
 539         if ! enabled linux; then
 540             if enabled gnu; then
 541                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 542             else
 543                 die "--enable-shared only supported on ELF for now"
 544             fi
 545         fi
 546     fi
 547     if [ -z "$CC" ] || enabled external_build; then
 548         echo "Bypassing toolchain for environment detection."
 549         enable_feature external_build
 550         check_header() {
 551             log fake_check_header "$@"
 552             header=$1
 553             shift
 554             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 555             disable_feature $var
 556             # Headers common to all environments
 557             case $header in
 558                 stdio.h)
 559                     true;
 560                 ;;
 561                 *)
 562                     result=false
 563                     for d in "$@"; do
 564                         [ -f "${d##-I}/$header" ] && result=true && break
 565                     done
 566                     ${result:-true}
 567             esac && enable_feature $var
 568
 569             # Specialize windows and POSIX environments.
 570             case $toolchain in
 571                 *-win*-*)
 572                     case $header-$toolchain in
 573                         stdint*-gcc) true;;
 574                         *) false;;
 575                     esac && enable_feature $var
 576                     ;;
 577                 *)
 578                     case $header in
 579                         stdint.h) true;;
 580                         pthread.h) true;;
 581                         sys/mman.h) true;;
 582                         unistd.h) true;;
 583                         *) false;;
 584                     esac && enable_feature $var
 585             esac
 586             enabled $var
 587         }
 588         check_ld() {
 589             true
 590         }
 591     fi
 592     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 593     check_ld <<EOF || die "Toolchain is unable to link executables"
 594 int main(void) {return 0;}
 595 EOF
 596     # check system headers
 597     check_header stdint.h
 598     check_header pthread.h
 599     check_header sys/mman.h
 600     check_header unistd.h # for sysconf(3) and friends.
 601
 602     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 603 }
 604
 605 process_toolchain() {
 606     process_common_toolchain
 607
 608     # Handle universal binaries for this architecture
 609     case $toolchain in
 610         universal-darwin*)
 611             darwin_ver=${tgt_os##darwin}
 612
 613             # Snow Leopard (10.6/darwin10) dropped support for PPC
 614             # Include PPC support for all prior versions
 615             if [ $darwin_ver -lt 10 ]; then
 616                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 617             fi
 618
 619             # Tiger (10.4/darwin8) brought support for x86
 620             if [ $darwin_ver -ge 8 ]; then
 621                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 622             fi
 623
 624             # Leopard (10.5/darwin9) brought 64 bit support
 625             if [ $darwin_ver -ge 9 ]; then
 626                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 627             fi
 628             ;;
 629     esac
 630
 631
 632     # Enable some useful compiler flags
 633     if enabled gcc; then
 634         enabled werror && check_add_cflags -Werror
 635         check_add_cflags -Wall
 636         check_add_cflags -Wdeclaration-after-statement
 637         check_add_cflags -Wdisabled-optimization
 638         check_add_cflags -Wpointer-arith
 639         check_add_cflags -Wtype-limits
 640         check_add_cflags -Wcast-qual
 641         check_add_cflags -Wvla
 642         check_add_cflags -Wimplicit-function-declaration
 643         check_add_cflags -Wuninitialized
 644         check_add_cflags -Wunused-variable
 645         case ${CC} in
 646           *clang*)
 647               # libvpx and/or clang have issues with aliasing:
 648               # https://code.google.com/p/webm/issues/detail?id=603
 649               # work around them until they are fixed
 650               check_add_cflags -fno-strict-aliasing
 651           ;;
 652           *) check_add_cflags -Wunused-but-set-variable ;;
 653         esac
 654         enabled extra_warnings || check_add_cflags -Wno-unused-function
 655     fi
 656
 657     if enabled icc; then
 658         enabled werror && check_add_cflags -Werror
 659         check_add_cflags -Wall
 660         check_add_cflags -Wpointer-arith
 661
 662         # ICC has a number of floating point optimizations that we disable
 663         # in favor of deterministic output WRT to other compilers
 664         add_cflags -fp-model precise
 665     fi
 666
 667     # Enable extra, harmless warnings. These might provide additional insight
 668     # to what the compiler is doing and why, but in general, but they shouldn't
 669     # be treated as fatal, even if we're treating warnings as errors.
 670     GCC_EXTRA_WARNINGS="
 671         -Wdisabled-optimization
 672         -Winline
 673     "
 674     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 675     RVCT_EXTRA_WARNINGS="
 676         --remarks
 677     "
 678     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 679     if enabled extra_warnings; then
 680         for w in ${EXTRA_WARNINGS}; do
 681             check_add_cflags ${w}
 682             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 683         done
 684     fi
 685
 686     # ccache only really works on gcc toolchains
 687     enabled gcc || soft_disable ccache
 688     if enabled mips; then
 689         enable_feature dequant_tokens
 690         enable_feature dc_recon
 691     fi
 692
 693     if enabled internal_stats; then
 694         enable_feature vp9_postproc
 695     fi
 696
 697     # Enable the postbuild target if building for visual studio.
 698     case "$tgt_cc" in
 699         vs*) enable_feature msvs
 700              enable_feature solution
 701              vs_version=${tgt_cc##vs}
 702              case $vs_version in
 703              [789])
 704                  VCPROJ_SFX=vcproj
 705                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 706                  ;;
 707              10|11|12)
 708                  VCPROJ_SFX=vcxproj
 709                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 710                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 711                  ;;
 712              esac
 713              all_targets="${all_targets} solution"
 714              INLINE="__forceinline"
 715         ;;
 716     esac
 717
 718     # Other toolchain specific defaults
 719     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 720
 721     if enabled postproc_visualizer; then
 722         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 723     fi
 724
 725     # Enable unit tests by default if we have a working C++ compiler.
 726     case "$toolchain" in
 727         *-vs*)
 728             soft_enable unit_tests
 729             soft_enable webm_io
 730             soft_enable libyuv
 731         ;;
 732         *-android-*)
 733             soft_enable webm_io
 734             soft_enable libyuv
 735             # GTestLog must be modified to use Android logging utilities.
 736         ;;
 737         *-darwin-*)
 738             # iOS/ARM builds do not work with gtest. This does not match
 739             # x86 targets.
 740         ;;
 741         *-iphonesimulator-*)
 742             soft_enable webm_io
 743             soft_enable libyuv
 744         ;;
 745         *-win*)
 746             # Some mingw toolchains don't have pthread available by default.
 747             # Treat these more like visual studio where threading in gtest
 748             # would be disabled for the same reason.
 749             check_cxx "$@" <<EOF && soft_enable unit_tests
 750 int z;
 751 EOF
 752             check_cxx "$@" <<EOF && soft_enable webm_io
 753 int z;
 754 EOF
 755             check_cxx "$@" <<EOF && soft_enable libyuv
 756 int z;
 757 EOF
 758         ;;
 759         *)
 760             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 761 int z;
 762 EOF
 763             check_cxx "$@" <<EOF && soft_enable webm_io
 764 int z;
 765 EOF
 766             check_cxx "$@" <<EOF && soft_enable libyuv
 767 int z;
 768 EOF
 769         ;;
 770     esac
 771     # libwebm needs to be linked with C++ standard library
 772     enabled webm_io && LD=${CXX}
 773 }
 774
 775
 776 ##
 777 ## END APPLICATION SPECIFIC CONFIGURATION
 778 ##
 779 CONFIGURE_ARGS="$@"
 780 process "$@"
 781 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 782 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 783 static const char* const cfg = "$CONFIGURE_ARGS";
 784 const char *vpx_codec_build_config(void) {return cfg;}
 785 EOF