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_tools}                 tools
  26   ${toggle_docs}                  documentation
  27   ${toggle_unit_tests}            unit tests
  28   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
  29   ${toggle_encode_perf_tests}     build encoder perf tests with unit tests
  30   --cpu=CPU                       tune for the specified CPU (ARM: cortex-a8, X86: sse3)
  31   --libc=PATH                     path to alternate libc
  32   --size-limit=WxH                max size to allow in the decoder
  33   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  34   ${toggle_codec_srcs}            in/exclude codec library source code
  35   ${toggle_debug_libs}            in/exclude debug version of libraries
  36   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  37   ${toggle_vp9_highbitdepth}      use VP9 high bit depth (10/12) profiles
  38   ${toggle_better_hw_compatibility}
  39                                   enable encoder to produce streams with better
  40                                   hardware decoder compatibility
  41   ${toggle_vp8}                   VP8 codec support
  42   ${toggle_vp9}                   VP9 codec support
  43   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  44   ${toggle_postproc}              postprocessing
  45   ${toggle_vp9_postproc}          vp9 specific postprocessing
  46   ${toggle_multithread}           multithreaded encoding and decoding
  47   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  48   ${toggle_realtime_only}         enable this option while building for real-time encoding
  49   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  50   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  51   ${toggle_coefficient_range_checking}
  52                                   enable decoder to check if intermediate
  53                                   transform coefficients are in valid range
  54   ${toggle_runtime_cpu_detect}    runtime cpu detection
  55   ${toggle_shared}                shared library support
  56   ${toggle_static}                static library support
  57   ${toggle_small}                 favor smaller size over speed
  58   ${toggle_postproc_visualizer}   macro block / block level visualizers
  59   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  60   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  61   ${toggle_vp9_temporal_denoising}
  62                                   enable vp9 temporal denoising
  63   ${toggle_webm_io}               enable input from and output to WebM container
  64   ${toggle_libyuv}                enable libyuv
  65
  66 Codecs:
  67   Codecs can be selectively enabled or disabled individually, or by family:
  68       --disable-<codec>
  69   is equivalent to:
  70       --disable-<codec>-encoder
  71       --disable-<codec>-decoder
  72
  73   Codecs available in this distribution:
  74 EOF
  75 #restore editor state '
  76
  77     family="";
  78     last_family="";
  79     c="";
  80     str="";
  81     for c in ${CODECS}; do
  82         family=${c%_*}
  83         if [ "${family}" != "${last_family}" ]; then
  84             [ -z "${str}" ] || echo "${str}"
  85             str="$(printf '    %10s:' ${family})"
  86         fi
  87         str="${str} $(printf '%10s' ${c#*_})"
  88         last_family=${family}
  89     done
  90     echo "${str}"
  91     show_help_post
  92 }
  93
  94 ##
  95 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  96 ##
  97
  98 # all_platforms is a list of all supported target platforms. Maintain
  99 # alphabetically by architecture, generic-gnu last.
 100 all_platforms="${all_platforms} arm64-android-gcc"
 101 all_platforms="${all_platforms} arm64-darwin-gcc"
 102 all_platforms="${all_platforms} arm64-linux-gcc"
 103 all_platforms="${all_platforms} arm64-win64-gcc"
 104 all_platforms="${all_platforms} arm64-win64-vs15"
 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-gcc"
 111 all_platforms="${all_platforms} armv7-win32-vs14"
 112 all_platforms="${all_platforms} armv7-win32-vs15"
 113 all_platforms="${all_platforms} armv7s-darwin-gcc"
 114 all_platforms="${all_platforms} armv8-linux-gcc"
 115 all_platforms="${all_platforms} mips32-linux-gcc"
 116 all_platforms="${all_platforms} mips64-linux-gcc"
 117 all_platforms="${all_platforms} ppc64le-linux-gcc"
 118 all_platforms="${all_platforms} sparc-solaris-gcc"
 119 all_platforms="${all_platforms} x86-android-gcc"
 120 all_platforms="${all_platforms} x86-darwin8-gcc"
 121 all_platforms="${all_platforms} x86-darwin8-icc"
 122 all_platforms="${all_platforms} x86-darwin9-gcc"
 123 all_platforms="${all_platforms} x86-darwin9-icc"
 124 all_platforms="${all_platforms} x86-darwin10-gcc"
 125 all_platforms="${all_platforms} x86-darwin11-gcc"
 126 all_platforms="${all_platforms} x86-darwin12-gcc"
 127 all_platforms="${all_platforms} x86-darwin13-gcc"
 128 all_platforms="${all_platforms} x86-darwin14-gcc"
 129 all_platforms="${all_platforms} x86-darwin15-gcc"
 130 all_platforms="${all_platforms} x86-darwin16-gcc"
 131 all_platforms="${all_platforms} x86-darwin17-gcc"
 132 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 133 all_platforms="${all_platforms} x86-linux-gcc"
 134 all_platforms="${all_platforms} x86-linux-icc"
 135 all_platforms="${all_platforms} x86-os2-gcc"
 136 all_platforms="${all_platforms} x86-solaris-gcc"
 137 all_platforms="${all_platforms} x86-win32-gcc"
 138 all_platforms="${all_platforms} x86-win32-vs14"
 139 all_platforms="${all_platforms} x86-win32-vs15"
 140 all_platforms="${all_platforms} x86_64-android-gcc"
 141 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 142 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 143 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 144 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 145 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin14-gcc"
 147 all_platforms="${all_platforms} x86_64-darwin15-gcc"
 148 all_platforms="${all_platforms} x86_64-darwin16-gcc"
 149 all_platforms="${all_platforms} x86_64-darwin17-gcc"
 150 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 151 all_platforms="${all_platforms} x86_64-linux-gcc"
 152 all_platforms="${all_platforms} x86_64-linux-icc"
 153 all_platforms="${all_platforms} x86_64-solaris-gcc"
 154 all_platforms="${all_platforms} x86_64-win64-gcc"
 155 all_platforms="${all_platforms} x86_64-win64-vs14"
 156 all_platforms="${all_platforms} x86_64-win64-vs15"
 157 all_platforms="${all_platforms} generic-gnu"
 158
 159 # all_targets is a list of all targets that can be configured
 160 # note that these should be in dependency order for now.
 161 all_targets="libs examples tools docs"
 162
 163 # all targets available are enabled, by default.
 164 for t in ${all_targets}; do
 165     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 166 done
 167
 168 if ! diff --version >/dev/null; then
 169   die "diff missing: Try installing diffutils via your package manager."
 170 fi
 171
 172 if ! perl --version >/dev/null; then
 173     die "Perl is required to build"
 174 fi
 175
 176 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 177   # test to see if source_path already configured
 178   if [ -f "${source_path}/vpx_config.h" ]; then
 179     die "source directory already configured; run 'make distclean' there first"
 180   fi
 181 fi
 182
 183 # check installed doxygen version
 184 doxy_version=$(doxygen --version 2>/dev/null)
 185 doxy_major=${doxy_version%%.*}
 186 if [ ${doxy_major:-0} -ge 1 ]; then
 187     doxy_version=${doxy_version#*.}
 188     doxy_minor=${doxy_version%%.*}
 189     doxy_patch=${doxy_version##*.}
 190
 191     [ $doxy_major -gt 1 ] && enable_feature doxygen
 192     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 193     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 194 fi
 195
 196 # disable codecs when their source directory does not exist
 197 [ -d "${source_path}/vp8" ] || disable_codec vp8
 198 [ -d "${source_path}/vp9" ] || disable_codec vp9
 199
 200 # install everything except the sources, by default. sources will have
 201 # to be enabled when doing dist builds, since that's no longer a common
 202 # case.
 203 enabled doxygen && enable_feature install_docs
 204 enable_feature install_bins
 205 enable_feature install_libs
 206
 207 enable_feature static
 208 enable_feature optimizations
 209 enable_feature dependency_tracking
 210 enable_feature spatial_resampling
 211 enable_feature multithread
 212 enable_feature os_support
 213 enable_feature temporal_denoising
 214
 215 CODECS="
 216     vp8_encoder
 217     vp8_decoder
 218     vp9_encoder
 219     vp9_decoder
 220 "
 221 CODEC_FAMILIES="
 222     vp8
 223     vp9
 224 "
 225
 226 ARCH_LIST="
 227     arm
 228     mips
 229     x86
 230     x86_64
 231     ppc
 232 "
 233 ARCH_EXT_LIST_X86="
 234     mmx
 235     sse
 236     sse2
 237     sse3
 238     ssse3
 239     sse4_1
 240     avx
 241     avx2
 242     avx512
 243 "
 244
 245 ARCH_EXT_LIST_LOONGSON="
 246     mmi
 247 "
 248
 249 ARCH_EXT_LIST="
 250     neon
 251     neon_asm
 252
 253     mips32
 254     dspr2
 255     msa
 256     mips64
 257
 258     ${ARCH_EXT_LIST_X86}
 259
 260     vsx
 261
 262     ${ARCH_EXT_LIST_LOONGSON}
 263 "
 264 HAVE_LIST="
 265     ${ARCH_EXT_LIST}
 266     vpx_ports
 267     pthread_h
 268     unistd_h
 269 "
 270 EXPERIMENT_LIST="
 271     fp_mb_stats
 272     emulate_hardware
 273     non_greedy_mv
 274 "
 275 CONFIG_LIST="
 276     dependency_tracking
 277     external_build
 278     install_docs
 279     install_bins
 280     install_libs
 281     install_srcs
 282     debug
 283     gprof
 284     gcov
 285     rvct
 286     gcc
 287     msvs
 288     pic
 289     big_endian
 290
 291     codec_srcs
 292     debug_libs
 293
 294     dequant_tokens
 295     dc_recon
 296     runtime_cpu_detect
 297     postproc
 298     vp9_postproc
 299     multithread
 300     internal_stats
 301     ${CODECS}
 302     ${CODEC_FAMILIES}
 303     encoders
 304     decoders
 305     static_msvcrt
 306     spatial_resampling
 307     realtime_only
 308     onthefly_bitpacking
 309     error_concealment
 310     shared
 311     static
 312     small
 313     postproc_visualizer
 314     os_support
 315     unit_tests
 316     webm_io
 317     libyuv
 318     decode_perf_tests
 319     encode_perf_tests
 320     multi_res_encoding
 321     temporal_denoising
 322     vp9_temporal_denoising
 323     consistent_recode
 324     coefficient_range_checking
 325     vp9_highbitdepth
 326     better_hw_compatibility
 327     experimental
 328     size_limit
 329     always_adjust_bpm
 330     bitstream_debug
 331     mismatch_debug
 332     ${EXPERIMENT_LIST}
 333 "
 334 CMDLINE_SELECT="
 335     dependency_tracking
 336     external_build
 337     extra_warnings
 338     werror
 339     install_docs
 340     install_bins
 341     install_libs
 342     install_srcs
 343     debug
 344     gprof
 345     gcov
 346     pic
 347     optimizations
 348     ccache
 349     runtime_cpu_detect
 350     thumb
 351
 352     libs
 353     examples
 354     tools
 355     docs
 356     libc
 357     as
 358     size_limit
 359     codec_srcs
 360     debug_libs
 361
 362     dequant_tokens
 363     dc_recon
 364     postproc
 365     vp9_postproc
 366     multithread
 367     internal_stats
 368     ${CODECS}
 369     ${CODEC_FAMILIES}
 370     static_msvcrt
 371     spatial_resampling
 372     realtime_only
 373     onthefly_bitpacking
 374     error_concealment
 375     shared
 376     static
 377     small
 378     postproc_visualizer
 379     unit_tests
 380     webm_io
 381     libyuv
 382     decode_perf_tests
 383     encode_perf_tests
 384     multi_res_encoding
 385     temporal_denoising
 386     vp9_temporal_denoising
 387     consistent_recode
 388     coefficient_range_checking
 389     better_hw_compatibility
 390     vp9_highbitdepth
 391     experimental
 392     always_adjust_bpm
 393     bitstream_debug
 394     mismatch_debug
 395 "
 396
 397 process_cmdline() {
 398     for opt do
 399         optval="${opt#*=}"
 400         case "$opt" in
 401         --disable-codecs)
 402           for c in ${CODEC_FAMILIES}; do disable_codec $c; done
 403           ;;
 404         --enable-?*|--disable-?*)
 405         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 406         if is_in ${option} ${EXPERIMENT_LIST}; then
 407             if enabled experimental; then
 408                 ${action}_feature $option
 409             else
 410                 log_echo "Ignoring $opt -- not in experimental mode."
 411             fi
 412         elif is_in ${option} "${CODECS} ${CODEC_FAMILIES}"; then
 413             ${action}_codec ${option}
 414         else
 415             process_common_cmdline $opt
 416         fi
 417         ;;
 418         *) process_common_cmdline "$opt"
 419         ;;
 420         esac
 421     done
 422 }
 423
 424 post_process_cmdline() {
 425     if enabled coefficient_range_checking; then
 426       echo "coefficient-range-checking is for decoders only, disabling encoders:"
 427       soft_disable vp8_encoder
 428       soft_disable vp9_encoder
 429     fi
 430
 431     c=""
 432
 433     # Enable all detected codecs, if they haven't been disabled
 434     for c in ${CODECS}; do soft_enable $c; done
 435
 436     # Enable the codec family if any component of that family is enabled
 437     for c in ${CODECS}; do
 438         enabled $c && enable_feature ${c%_*}
 439     done
 440
 441     # Set the {en,de}coders variable if any algorithm in that class is enabled
 442     for c in ${CODECS}; do
 443         enabled ${c} && enable_feature ${c##*_}s
 444     done
 445 }
 446
 447
 448 process_targets() {
 449     enabled child || write_common_config_banner
 450     write_common_target_config_h ${BUILD_PFX}vpx_config.h
 451     write_common_config_targets
 452     enabled win_arm64_neon_h_workaround && write_win_arm64_neon_h_workaround ${BUILD_PFX}arm_neon.h
 453
 454     # Calculate the default distribution name, based on the enabled features
 455     cf=""
 456     DIST_DIR=vpx
 457     for cf in $CODEC_FAMILIES; do
 458         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 459             DIST_DIR="${DIST_DIR}-${cf}"
 460         elif enabled ${cf}_encoder; then
 461             DIST_DIR="${DIST_DIR}-${cf}cx"
 462         elif enabled ${cf}_decoder; then
 463             DIST_DIR="${DIST_DIR}-${cf}dx"
 464         fi
 465     done
 466     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 467     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 468     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 469     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 470     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 471     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 472     case "${tgt_os}" in
 473     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 474           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 475           ;;
 476     esac
 477     if [ -f "${source_path}/build/make/version.sh" ]; then
 478         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 479         DIST_DIR="${DIST_DIR}-${ver}"
 480         VERSION_STRING=${ver}
 481         ver=${ver%%-*}
 482         VERSION_PATCH=${ver##*.}
 483         ver=${ver%.*}
 484         VERSION_MINOR=${ver##*.}
 485         ver=${ver#v}
 486         VERSION_MAJOR=${ver%.*}
 487     fi
 488     enabled child || cat <<EOF >> config.mk
 489
 490 PREFIX=${prefix}
 491 ifeq (\$(MAKECMDGOALS),dist)
 492 DIST_DIR?=${DIST_DIR}
 493 else
 494 DIST_DIR?=\$(DESTDIR)${prefix}
 495 endif
 496 LIBSUBDIR=${libdir##${prefix}/}
 497
 498 VERSION_STRING=${VERSION_STRING}
 499
 500 VERSION_MAJOR=${VERSION_MAJOR}
 501 VERSION_MINOR=${VERSION_MINOR}
 502 VERSION_PATCH=${VERSION_PATCH}
 503
 504 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 505 EOF
 506     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 507
 508     #
 509     # Write makefiles for all enabled targets
 510     #
 511     for tgt in libs examples tools docs solution; do
 512         tgt_fn="$tgt-$toolchain.mk"
 513
 514         if enabled $tgt; then
 515             echo "Creating makefiles for ${toolchain} ${tgt}"
 516             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 517             #write_${tgt}_config
 518         fi
 519     done
 520
 521 }
 522
 523 process_detect() {
 524     if enabled shared; then
 525         # Can only build shared libs on a subset of platforms. Doing this check
 526         # here rather than at option parse time because the target auto-detect
 527         # magic happens after the command line has been parsed.
 528         case "${tgt_os}" in
 529         linux|os2|solaris|darwin*|iphonesimulator*)
 530             # Supported platforms
 531             ;;
 532         *)
 533             if enabled gnu; then
 534                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 535             else
 536                 die "--enable-shared only supported on ELF, OS/2, and Darwin for now"
 537             fi
 538             ;;
 539         esac
 540     fi
 541     if [ -z "$CC" ] || enabled external_build; then
 542         echo "Bypassing toolchain for environment detection."
 543         enable_feature external_build
 544         check_header() {
 545             log fake_check_header "$@"
 546             header=$1
 547             shift
 548             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 549             disable_feature $var
 550             # Headers common to all environments
 551             case $header in
 552                 stdio.h)
 553                     true;
 554                 ;;
 555                 *)
 556                     result=false
 557                     for d in "$@"; do
 558                         [ -f "${d##-I}/$header" ] && result=true && break
 559                     done
 560                     ${result:-true}
 561             esac && enable_feature $var
 562
 563             # Specialize windows and POSIX environments.
 564             case $toolchain in
 565                 *-win*-*)
 566                     # Don't check for any headers in Windows builds.
 567                     false
 568                 ;;
 569                 *)
 570                     case $header in
 571                         pthread.h) true;;
 572                         unistd.h) true;;
 573                         *) false;;
 574                     esac && enable_feature $var
 575             esac
 576             enabled $var
 577         }
 578         check_ld() {
 579             true
 580         }
 581         check_lib() {
 582             true
 583         }
 584     fi
 585     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 586     check_ld <<EOF || die "Toolchain is unable to link executables"
 587 int main(void) {return 0;}
 588 EOF
 589     # check system headers
 590
 591     # Use both check_header and check_lib here, since check_lib
 592     # could be a stub that always returns true.
 593     check_header pthread.h && check_lib -lpthread <<EOF || disable_feature pthread_h
 594 #include <pthread.h>
 595 #include <stddef.h>
 596 int main(void) { return pthread_create(NULL, NULL, NULL, NULL); }
 597 EOF
 598     check_header unistd.h # for sysconf(3) and friends.
 599
 600     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 601
 602     if enabled neon && ! enabled external_build; then
 603       check_header arm_neon.h || die "Unable to find arm_neon.h"
 604     fi
 605 }
 606
 607 process_toolchain() {
 608     process_common_toolchain
 609
 610     # Enable some useful compiler flags
 611     if enabled gcc; then
 612         enabled werror && check_add_cflags -Werror
 613         check_add_cflags -Wall
 614         check_add_cflags -Wdeclaration-after-statement
 615         check_add_cflags -Wdisabled-optimization
 616         check_add_cflags -Wfloat-conversion
 617         check_add_cflags -Wparentheses-equality
 618         check_add_cflags -Wpointer-arith
 619         check_add_cflags -Wtype-limits
 620         check_add_cflags -Wcast-qual
 621         check_add_cflags -Wvla
 622         check_add_cflags -Wimplicit-function-declaration
 623         check_add_cflags -Wuninitialized
 624         check_add_cflags -Wunused
 625         check_add_cflags -Wextra
 626         # check_add_cflags also adds to cxxflags. gtest does not do well with
 627         # these flags so add them explicitly to CFLAGS only.
 628         check_cflags -Wundef && add_cflags_only -Wundef
 629         check_cflags -Wframe-larger-than=52000 && \
 630           add_cflags_only -Wframe-larger-than=52000
 631         check_cflags -Wmissing-declarations && \
 632           add_cflags_only -Wmissing-declarations
 633         check_cflags -Wmissing-prototypes && \
 634           add_cflags_only -Wmissing-prototypes
 635         if enabled mips || [ -z "${INLINE}" ]; then
 636           enabled extra_warnings || check_add_cflags -Wno-unused-function
 637         fi
 638         # Enforce c89 for c files. Don't be too strict about it though. Allow
 639         # gnu extensions like "//" for comments.
 640         check_cflags -std=gnu89 && add_cflags_only -std=gnu89
 641         # Avoid this warning for third_party C++ sources. Some reorganization
 642         # would be needed to apply this only to test/*.cc.
 643         check_cflags -Wshorten-64-to-32 && add_cflags_only -Wshorten-64-to-32
 644
 645         # Quiet gcc 6 vs 7 abi warnings:
 646         # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728
 647         if enabled arm; then
 648           check_add_cxxflags -Wno-psabi
 649         fi
 650     fi
 651
 652     if enabled icc; then
 653         enabled werror && check_add_cflags -Werror
 654         check_add_cflags -Wall
 655         check_add_cflags -Wpointer-arith
 656
 657         # ICC has a number of floating point optimizations that we disable
 658         # in favor of deterministic output WRT to other compilers
 659         add_cflags -fp-model precise
 660     fi
 661
 662     # Enable extra, harmless warnings. These might provide additional insight
 663     # to what the compiler is doing and why, but in general, but they shouldn't
 664     # be treated as fatal, even if we're treating warnings as errors.
 665     GCC_EXTRA_WARNINGS="
 666         -Wdisabled-optimization
 667         -Winline
 668     "
 669     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 670     RVCT_EXTRA_WARNINGS="
 671         --remarks
 672     "
 673     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 674     if enabled extra_warnings; then
 675         for w in ${EXTRA_WARNINGS}; do
 676             check_add_cflags ${w}
 677             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 678         done
 679     fi
 680
 681     # ccache only really works on gcc toolchains
 682     enabled gcc || soft_disable ccache
 683     if enabled mips; then
 684         enable_feature dequant_tokens
 685         enable_feature dc_recon
 686     fi
 687
 688     if enabled internal_stats; then
 689         enable_feature vp9_postproc
 690     fi
 691
 692     # Enable the postbuild target if building for visual studio.
 693     case "$tgt_cc" in
 694         vs*) enable_feature msvs
 695              enable_feature solution
 696              vs_version=${tgt_cc##vs}
 697              VCPROJ_SFX=vcxproj
 698              gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 699              enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 700              all_targets="${all_targets} solution"
 701              INLINE="__inline"
 702         ;;
 703     esac
 704
 705     # Other toolchain specific defaults
 706     case $toolchain in x86*) soft_enable postproc;; esac
 707
 708     if enabled postproc_visualizer; then
 709         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 710     fi
 711
 712     # Enable unit tests by default if we have a working C++ compiler.
 713     case "$toolchain" in
 714         *-vs*)
 715             soft_enable unit_tests
 716             soft_enable webm_io
 717             soft_enable libyuv
 718         ;;
 719         *-android-*)
 720             check_add_cxxflags -std=c++11 && soft_enable webm_io
 721             soft_enable libyuv
 722             # GTestLog must be modified to use Android logging utilities.
 723         ;;
 724         *-darwin-*)
 725             # iOS/ARM builds do not work with gtest. This does not match
 726             # x86 targets.
 727         ;;
 728         *-iphonesimulator-*)
 729             check_add_cxxflags -std=c++11 && soft_enable webm_io
 730             soft_enable libyuv
 731         ;;
 732         *-win*)
 733             # Some mingw toolchains don't have pthread available by default.
 734             # Treat these more like visual studio where threading in gtest
 735             # would be disabled for the same reason.
 736             check_add_cxxflags -std=c++11 && soft_enable unit_tests \
 737               && soft_enable webm_io
 738             check_cxx "$@" <<EOF && soft_enable libyuv
 739 int z;
 740 EOF
 741         ;;
 742         *)
 743             enabled pthread_h && check_add_cxxflags -std=c++11 \
 744               && soft_enable unit_tests
 745             check_add_cxxflags -std=c++11 && soft_enable webm_io
 746             check_cxx "$@" <<EOF && soft_enable libyuv
 747 int z;
 748 EOF
 749         ;;
 750     esac
 751     # libwebm needs to be linked with C++ standard library
 752     enabled webm_io && LD=${CXX}
 753
 754     # append any user defined extra cflags
 755     if [ -n "${extra_cflags}" ] ; then
 756         check_add_cflags ${extra_cflags} || \
 757         die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
 758     fi
 759     if [ -n "${extra_cxxflags}" ]; then
 760         check_add_cxxflags ${extra_cxxflags} || \
 761         die "Requested extra CXXFLAGS '${extra_cxxflags}' not supported by compiler"
 762     fi
 763 }
 764
 765
 766 ##
 767 ## END APPLICATION SPECIFIC CONFIGURATION
 768 ##
 769 CONFIGURE_ARGS="$@"
 770 process "$@"
 771 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 772 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 773 #include "vpx/vpx_codec.h"
 774 static const char* const cfg = "$CONFIGURE_ARGS";
 775 const char *vpx_codec_build_config(void) {return cfg;}
 776 EOF