configure

   1 #!/bin/bash
   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}                  don't build libraries
  24   ${toggle_examples}              don't build examples
  25   ${toggle_unit_tests}            build unit tests
  26   --libc=PATH                     path to alternate libc
  27   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  28   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  29                                   supported by hardware [auto]
  30   ${toggle_codec_srcs}            in/exclude codec library source code
  31   ${toggle_debug_libs}            in/exclude debug version of libraries
  32   ${toggle_md5}                   support for output of checksum data
  33   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  34   ${toggle_vp8}                   VP8 codec support
  35   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  36   ${toggle_mem_tracker}           track memory usage
  37   ${toggle_postproc}              postprocessing
  38   ${toggle_multithread}           multithreaded encoding and decoding
  39   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  40   ${toggle_realtime_only}         enable this option while building for real-time encoding
  41   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  42   ${toggle_runtime_cpu_detect}    runtime cpu detection
  43   ${toggle_shared}                shared library support
  44   ${toggle_static}                static library support
  45   ${toggle_small}                 favor smaller size over speed
  46   ${toggle_postproc_visualizer}   macro block / block level visualizers
  47   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  48
  49 Codecs:
  50   Codecs can be selectively enabled or disabled individually, or by family:
  51       --disable-<codec>
  52   is equivalent to:
  53       --disable-<codec>-encoder
  54       --disable-<codec>-decoder
  55
  56   Codecs available in this distribution:
  57 EOF
  58 #restore editor state '
  59
  60     local family;
  61     local last_family;
  62     local c;
  63     local str;
  64     for c in ${CODECS}; do
  65         family=${c%_*}
  66         if [ "${family}" != "${last_family}" ]; then
  67             [ -z "${str}" ] || echo "${str}"
  68             str="$(printf '    %10s:' ${family})"
  69         fi
  70         str="${str} $(printf '%10s' ${c#*_})"
  71         last_family=${family}
  72     done
  73     echo "${str}"
  74     show_help_post
  75 }
  76
  77 ##
  78 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  79 ##
  80
  81 # all_platforms is a list of all supported target platforms. Maintain
  82 # alphabetically by architecture, generic-gnu last.
  83 all_platforms="${all_platforms} armv5te-linux-rvct"
  84 all_platforms="${all_platforms} armv5te-linux-gcc"
  85 all_platforms="${all_platforms} armv5te-none-rvct"
  86 all_platforms="${all_platforms} armv6-darwin-gcc"
  87 all_platforms="${all_platforms} armv6-linux-rvct"
  88 all_platforms="${all_platforms} armv6-linux-gcc"
  89 all_platforms="${all_platforms} armv6-none-rvct"
  90 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  91 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  92 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  93 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
  94 all_platforms="${all_platforms} mips32-linux-gcc"
  95 all_platforms="${all_platforms} ppc32-darwin8-gcc"
  96 all_platforms="${all_platforms} ppc32-darwin9-gcc"
  97 all_platforms="${all_platforms} ppc32-linux-gcc"
  98 all_platforms="${all_platforms} ppc64-darwin8-gcc"
  99 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 100 all_platforms="${all_platforms} ppc64-linux-gcc"
 101 all_platforms="${all_platforms} sparc-solaris-gcc"
 102 all_platforms="${all_platforms} x86-darwin8-gcc"
 103 all_platforms="${all_platforms} x86-darwin8-icc"
 104 all_platforms="${all_platforms} x86-darwin9-gcc"
 105 all_platforms="${all_platforms} x86-darwin9-icc"
 106 all_platforms="${all_platforms} x86-darwin10-gcc"
 107 all_platforms="${all_platforms} x86-linux-gcc"
 108 all_platforms="${all_platforms} x86-linux-icc"
 109 all_platforms="${all_platforms} x86-solaris-gcc"
 110 all_platforms="${all_platforms} x86-win32-gcc"
 111 all_platforms="${all_platforms} x86-win32-vs7"
 112 all_platforms="${all_platforms} x86-win32-vs8"
 113 all_platforms="${all_platforms} x86-win32-vs9"
 114 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 115 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 116 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 117 all_platforms="${all_platforms} x86_64-linux-gcc"
 118 all_platforms="${all_platforms} x86_64-linux-icc"
 119 all_platforms="${all_platforms} x86_64-solaris-gcc"
 120 all_platforms="${all_platforms} x86_64-win64-gcc"
 121 all_platforms="${all_platforms} x86_64-win64-vs8"
 122 all_platforms="${all_platforms} x86_64-win64-vs9"
 123 all_platforms="${all_platforms} universal-darwin8-gcc"
 124 all_platforms="${all_platforms} universal-darwin9-gcc"
 125 all_platforms="${all_platforms} generic-gnu"
 126
 127 # all_targets is a list of all targets that can be configured
 128 # note that these should be in dependency order for now.
 129 all_targets="libs examples docs"
 130
 131 # all targets available are enabled, by default.
 132 for t in ${all_targets}; do
 133     [ -f ${source_path}/${t}.mk ] && enable ${t}
 134 done
 135
 136 # check installed doxygen version
 137 doxy_version=$(doxygen --version 2>/dev/null)
 138 doxy_major=${doxy_version%%.*}
 139 if [ ${doxy_major:-0} -ge 1 ]; then
 140     doxy_version=${doxy_version#*.}
 141     doxy_minor=${doxy_version%%.*}
 142     doxy_patch=${doxy_version##*.}
 143
 144     [ $doxy_major -gt 1 ] && enable doxygen
 145     [ $doxy_minor -gt 5 ] && enable doxygen
 146     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 147 fi
 148
 149 # install everything except the sources, by default. sources will have
 150 # to be enabled when doing dist builds, since that's no longer a common
 151 # case.
 152 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 153 enable install_bins
 154 enable install_libs
 155
 156 enable static
 157 enable optimizations
 158 enable fast_unaligned #allow unaligned accesses, if supported by hw
 159 enable md5
 160 enable spatial_resampling
 161 enable multithread
 162 enable os_support
 163
 164 [ -d ${source_path}/../include ] && enable alt_tree_layout
 165 for d in vp8; do
 166     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 167 done
 168
 169 if ! enabled alt_tree_layout; then
 170 # development environment
 171 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 172 else
 173 # customer environment
 174 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 175 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 176
 177 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 178 fi
 179
 180 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 181 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 182
 183 ARCH_LIST="
 184     arm
 185     mips
 186     x86
 187     x86_64
 188     ppc32
 189     ppc64
 190 "
 191 ARCH_EXT_LIST="
 192     armv5te
 193     armv6
 194     armv7
 195
 196     mips32
 197
 198     mmx
 199     sse
 200     sse2
 201     sse3
 202     ssse3
 203     sse4_1
 204
 205     altivec
 206 "
 207 HAVE_LIST="
 208     ${ARCH_EXT_LIST}
 209     vpx_ports
 210     stdint_h
 211     alt_tree_layout
 212     pthread_h
 213     sys_mman_h
 214     unistd_h
 215 "
 216 CONFIG_LIST="
 217     external_build
 218     install_docs
 219     install_bins
 220     install_libs
 221     install_srcs
 222     debug
 223     gprof
 224     gcov
 225     rvct
 226     gcc
 227     msvs
 228     pic
 229     big_endian
 230
 231     codec_srcs
 232     debug_libs
 233     fast_unaligned
 234     mem_manager
 235     mem_tracker
 236     mem_checks
 237     md5
 238
 239     dequant_tokens
 240     dc_recon
 241     runtime_cpu_detect
 242     postproc
 243     multithread
 244     internal_stats
 245     ${CODECS}
 246     ${CODEC_FAMILIES}
 247     encoders
 248     decoders
 249     static_msvcrt
 250     spatial_resampling
 251     realtime_only
 252     error_concealment
 253     shared
 254     static
 255     small
 256     postproc_visualizer
 257     os_support
 258     unit_tests
 259     multi_res_encoding
 260 "
 261 CMDLINE_SELECT="
 262     extra_warnings
 263     werror
 264     install_docs
 265     install_bins
 266     install_libs
 267     install_srcs
 268     debug
 269     gprof
 270     gcov
 271     pic
 272     optimizations
 273     ccache
 274     runtime_cpu_detect
 275
 276     libs
 277     examples
 278     libc
 279     as
 280     fast_unaligned
 281     codec_srcs
 282     debug_libs
 283     md5
 284
 285     dequant_tokens
 286     dc_recon
 287     postproc
 288     multithread
 289     internal_stats
 290     ${CODECS}
 291     ${CODEC_FAMILIES}
 292     static_msvcrt
 293     mem_tracker
 294     spatial_resampling
 295     realtime_only
 296     error_concealment
 297     shared
 298     static
 299     small
 300     postproc_visualizer
 301     unit_tests
 302     multi_res_encoding
 303 "
 304
 305 process_cmdline() {
 306     for opt do
 307         optval="${opt#*=}"
 308         case "$opt" in
 309         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 310         *) process_common_cmdline "$opt"
 311         ;;
 312         esac
 313     done
 314 }
 315
 316 post_process_cmdline() {
 317     local c
 318
 319     # If the codec family is disabled, disable all components of that family.
 320     # If the codec family is enabled, enable all components of that family.
 321     log_echo "Configuring selected codecs"
 322     for c in ${CODECS}; do
 323         disabled ${c%%_*} && disable ${c}
 324         enabled ${c%%_*} && enable ${c}
 325     done
 326
 327     # Enable all detected codecs, if they haven't been disabled
 328     for c in ${CODECS}; do soft_enable $c; done
 329
 330     # Enable the codec family if any component of that family is enabled
 331     for c in ${CODECS}; do
 332         enabled $c && enable ${c%_*}
 333     done
 334
 335     # Set the {en,de}coders variable if any algorithm in that class is enabled
 336     for c in ${CODECS}; do
 337         enabled ${c} && enable ${c##*_}s
 338     done
 339 }
 340
 341
 342 process_targets() {
 343     enabled child || write_common_config_banner
 344     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 345
 346     # TODO: add host tools target (obj_int_extract, etc)
 347
 348     # For fat binaries, call configure recursively to configure for each
 349     # binary architecture to be included.
 350     if enabled universal; then
 351         # Call configure (ourselves) for each subarchitecture
 352         for arch in $fat_bin_archs; do
 353             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 354         done
 355     fi
 356
 357     # The write_common_config (config.mk) logic is deferred until after the
 358     # recursive calls to configure complete, becuase we want our universal
 359     # targets to be executed last.
 360     write_common_config_targets
 361     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 362
 363     # Calculate the default distribution name, based on the enabled features
 364     local cf
 365     local DIST_DIR=vpx
 366     for cf in $CODEC_FAMILIES; do
 367         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 368             DIST_DIR="${DIST_DIR}-${cf}"
 369         elif enabled ${cf}_encoder; then
 370             DIST_DIR="${DIST_DIR}-${cf}cx"
 371         elif enabled ${cf}_decoder; then
 372             DIST_DIR="${DIST_DIR}-${cf}dx"
 373         fi
 374     done
 375     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 376     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 377     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 378     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 379     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 380     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 381     case "${tgt_os}" in
 382     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 383           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 384           ;;
 385     esac
 386     if [ -f "${source_path}/build/make/version.sh" ]; then
 387         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 388         DIST_DIR="${DIST_DIR}-${ver}"
 389         VERSION_STRING=${ver}
 390         ver=${ver%%-*}
 391         VERSION_PATCH=${ver##*.}
 392         ver=${ver%.*}
 393         VERSION_MINOR=${ver##*.}
 394         ver=${ver#v}
 395         VERSION_MAJOR=${ver%.*}
 396     fi
 397     enabled child || cat <<EOF >> config.mk
 398
 399 PREFIX=${prefix}
 400 ifeq (\$(MAKECMDGOALS),dist)
 401 DIST_DIR?=${DIST_DIR}
 402 else
 403 DIST_DIR?=\$(DESTDIR)${prefix}
 404 endif
 405 LIBSUBDIR=${libdir##${prefix}/}
 406
 407 VERSION_STRING=${VERSION_STRING}
 408
 409 VERSION_MAJOR=${VERSION_MAJOR}
 410 VERSION_MINOR=${VERSION_MINOR}
 411 VERSION_PATCH=${VERSION_PATCH}
 412
 413 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 414 EOF
 415     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 416
 417     #
 418     # Write makefiles for all enabled targets
 419     #
 420     for tgt in libs examples docs solution; do
 421         local tgt_fn="$tgt-$toolchain.mk"
 422
 423         if enabled $tgt; then
 424             echo "Creating makefiles for ${toolchain} ${tgt}"
 425             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 426             #write_${tgt}_config
 427         fi
 428     done
 429
 430 }
 431
 432 process_detect() {
 433     if enabled shared; then
 434         # Can only build shared libs on a subset of platforms. Doing this check
 435         # here rather than at option parse time because the target auto-detect
 436         # magic happens after the command line has been parsed.
 437         enabled linux || die "--enable-shared only supported on ELF for now"
 438     fi
 439     if [ -z "$CC" ]; then
 440         echo "Bypassing toolchain for environment detection."
 441         enable external_build
 442         check_header() {
 443             log fake_check_header "$@"
 444             header=$1
 445             shift
 446             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 447             disable $var
 448             case $header in
 449                 stdio.h)
 450                     true;
 451                 ;;
 452                 *)
 453                     local result=false
 454                     for d in "$@"; do
 455                         [ -f "${d##-I}/$header" ] && result=true && break
 456                     done
 457                     ${result:-true}
 458             esac && enable $var
 459         }
 460         check_ld() {
 461             true
 462         }
 463     fi
 464     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 465     check_ld <<EOF || die "Toolchain is unable to link executables"
 466 int main(void) {return 0;}
 467 EOF
 468     # check system headers
 469     check_header stdint.h
 470     check_header pthread.h
 471     check_header sys/mman.h
 472
 473     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 474 }
 475
 476 process_toolchain() {
 477     process_common_toolchain
 478
 479     # Handle universal binaries for this architecture
 480     case $toolchain in
 481         universal-darwin*)
 482             local darwin_ver=${tgt_os##darwin}
 483             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 484
 485             # Intel
 486             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 487             if [ $darwin_ver -gt 8 ]; then
 488                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 489             fi
 490             ;;
 491     esac
 492
 493
 494     # Enable some useful compiler flags
 495     if enabled gcc; then
 496         enabled werror && check_add_cflags -Werror
 497         check_add_cflags -Wall
 498         check_add_cflags -Wdeclaration-after-statement
 499         check_add_cflags -Wdisabled-optimization
 500         check_add_cflags -Wpointer-arith
 501         check_add_cflags -Wtype-limits
 502         check_add_cflags -Wcast-qual
 503         enabled extra_warnings || check_add_cflags -Wno-unused-function
 504     fi
 505
 506     if enabled icc; then
 507         enabled werror && check_add_cflags -Werror
 508         check_add_cflags -Wall
 509         check_add_cflags -Wpointer-arith
 510
 511         # ICC has a number of floating point optimizations that we disable
 512         # in favor of deterministic output WRT to other compilers
 513         add_cflags -fp-model precise
 514     fi
 515
 516     # Enable extra, harmless warnings. These might provide additional insight
 517     # to what the compiler is doing and why, but in general, but they shouldn't
 518     # be treated as fatal, even if we're treating warnings as errors.
 519     GCC_EXTRA_WARNINGS="
 520         -Wdisabled-optimization
 521         -Winline
 522     "
 523     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 524     RVCT_EXTRA_WARNINGS="
 525         --remarks
 526     "
 527     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 528     if enabled extra_warnings; then
 529         for w in ${EXTRA_WARNINGS}; do
 530             check_add_cflags ${w}
 531             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 532         done
 533     fi
 534
 535     # ccache only really works on gcc toolchains
 536     enabled gcc || soft_disable ccache
 537     if enabled mips; then
 538         enable dequant_tokens
 539         enable dc_recon
 540     fi
 541
 542     # Enable the postbuild target if building for visual studio.
 543     case "$tgt_cc" in
 544         vs*) enable msvs
 545              enable solution
 546              vs_version=${tgt_cc##vs}
 547              all_targets="${all_targets} solution"
 548         ;;
 549     esac
 550
 551     # Other toolchain specific defaults
 552     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 553
 554     if enabled postproc_visualizer; then
 555         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 556     fi
 557 }
 558
 559
 560 ##
 561 ## END APPLICATION SPECIFIC CONFIGURATION
 562 ##
 563 CONFIGURE_ARGS="$@"
 564 process "$@"
 565 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 566 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 567 static const char* const cfg = "$CONFIGURE_ARGS";
 568 const char *vpx_codec_build_config(void) {return cfg;}
 569 EOF