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_spatial_resampling}    spatial sampling (scaling) support
  39   ${toggle_runtime_cpu_detect}    runtime cpu detection
  40   ${toggle_shared}                shared library support
  41   ${toggle_static}                static library support
  42   ${toggle_small}                 favor smaller size over speed
  43   ${toggle_postproc_visualizer}   macro block / block level visualizers
  44
  45 Codecs:
  46   Codecs can be selectively enabled or disabled individually, or by family:
  47       --disable-<codec>
  48   is equivalent to:
  49       --disable-<codec>-encoder
  50       --disable-<codec>-decoder
  51
  52   Codecs available in this distribution:
  53 EOF
  54 #restore editor state '
  55
  56     local family;
  57     local last_family;
  58     local c;
  59     local str;
  60     for c in ${CODECS}; do
  61         family=${c%_*}
  62         if [ "${family}" != "${last_family}" ]; then
  63             [ -z "${str}" ] || echo "${str}"
  64             str="$(printf '    %10s:' ${family})"
  65         fi
  66         str="${str} $(printf '%10s' ${c#*_})"
  67         last_family=${family}
  68     done
  69     echo "${str}"
  70     show_help_post
  71 }
  72
  73 ##
  74 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  75 ##
  76
  77 # all_platforms is a list of all supported target platforms. Maintain
  78 # alphabetically by architecture, generic-gnu last.
  79 all_platforms="${all_platforms} armv5te-linux-rvct"
  80 all_platforms="${all_platforms} armv5te-linux-gcc"
  81 all_platforms="${all_platforms} armv5te-none-rvct"
  82 all_platforms="${all_platforms} armv5te-symbian-gcc"
  83 all_platforms="${all_platforms} armv6-darwin-gcc"
  84 all_platforms="${all_platforms} armv6-linux-rvct"
  85 all_platforms="${all_platforms} armv6-linux-gcc"
  86 all_platforms="${all_platforms} armv6-none-rvct"
  87 all_platforms="${all_platforms} armv6-symbian-gcc"
  88 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  89 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  90 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  91 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  92 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  93 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  94 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  95 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
  96 all_platforms="${all_platforms} mips32-linux-gcc"
  97 all_platforms="${all_platforms} ppc32-darwin8-gcc"
  98 all_platforms="${all_platforms} ppc32-darwin9-gcc"
  99 all_platforms="${all_platforms} ppc32-linux-gcc"
 100 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 101 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 102 all_platforms="${all_platforms} ppc64-linux-gcc"
 103 all_platforms="${all_platforms} sparc-solaris-gcc"
 104 all_platforms="${all_platforms} x86-darwin8-gcc"
 105 all_platforms="${all_platforms} x86-darwin8-icc"
 106 all_platforms="${all_platforms} x86-darwin9-gcc"
 107 all_platforms="${all_platforms} x86-darwin9-icc"
 108 all_platforms="${all_platforms} x86-linux-gcc"
 109 all_platforms="${all_platforms} x86-linux-icc"
 110 all_platforms="${all_platforms} x86-solaris-gcc"
 111 all_platforms="${all_platforms} x86-win32-gcc"
 112 all_platforms="${all_platforms} x86-win32-vs7"
 113 all_platforms="${all_platforms} x86-win32-vs8"
 114 all_platforms="${all_platforms} x86-win32-vs9"
 115 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 116 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 117 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 118 all_platforms="${all_platforms} x86_64-linux-gcc"
 119 all_platforms="${all_platforms} x86_64-linux-icc"
 120 all_platforms="${all_platforms} x86_64-solaris-gcc"
 121 all_platforms="${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 os_support
 162
 163 [ -d ${source_path}/../include ] && enable alt_tree_layout
 164 for d in vp8; do
 165     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 166 done
 167
 168 if ! enabled alt_tree_layout; then
 169 # development environment
 170 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 171 else
 172 # customer environment
 173 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 174 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 175
 176 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 177 fi
 178
 179 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 180 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 181
 182 ARCH_LIST="
 183     arm
 184     mips
 185     x86
 186     x86_64
 187     ppc32
 188     ppc64
 189 "
 190 ARCH_EXT_LIST="
 191     armv5te
 192     armv6
 193     armv7
 194     iwmmxt
 195     iwmmxt2
 196
 197     mips32
 198
 199     mmx
 200     sse
 201     sse2
 202     sse3
 203     ssse3
 204     sse4_1
 205
 206     altivec
 207 "
 208 HAVE_LIST="
 209     ${ARCH_EXT_LIST}
 210     vpx_ports
 211     stdint_h
 212     alt_tree_layout
 213     pthread_h
 214     sys_mman_h
 215     unistd_h
 216 "
 217 EXPERIMENT_LIST="
 218     csm
 219     featureupdates
 220     comp_intra_pred
 221     superblocks
 222     pred_filter
 223     lossless
 224     switchable_interp
 225     newbestrefmv
 226     new_mvref
 227     newmventropy
 228     tx_select
 229 "
 230 CONFIG_LIST="
 231     external_build
 232     install_docs
 233     install_bins
 234     install_libs
 235     install_srcs
 236     debug
 237     gprof
 238     gcov
 239     rvct
 240     gcc
 241     msvs
 242     pic
 243     big_endian
 244
 245     codec_srcs
 246     debug_libs
 247     fast_unaligned
 248     mem_manager
 249     mem_tracker
 250     mem_checks
 251     md5
 252
 253     dequant_tokens
 254     dc_recon
 255     runtime_cpu_detect
 256     postproc
 257     internal_stats
 258     ${CODECS}
 259     ${CODEC_FAMILIES}
 260     encoders
 261     decoders
 262     static_msvcrt
 263     spatial_resampling
 264     shared
 265     static
 266     small
 267     postproc_visualizer
 268     os_support
 269     unit_tests
 270     experimental
 271     ${EXPERIMENT_LIST}
 272 "
 273 CMDLINE_SELECT="
 274     extra_warnings
 275     werror
 276     install_docs
 277     install_bins
 278     install_libs
 279     install_srcs
 280     debug
 281     gprof
 282     gcov
 283     pic
 284     optimizations
 285     ccache
 286     runtime_cpu_detect
 287
 288     libs
 289     examples
 290     libc
 291     as
 292     fast_unaligned
 293     codec_srcs
 294     debug_libs
 295     md5
 296
 297     dequant_tokens
 298     dc_recon
 299     postproc
 300     internal_stats
 301     ${CODECS}
 302     ${CODEC_FAMILIES}
 303     static_msvcrt
 304     mem_tracker
 305     spatial_resampling
 306     shared
 307     static
 308     small
 309     postproc_visualizer
 310     unit_tests
 311     experimental
 312 "
 313
 314 process_cmdline() {
 315     for opt do
 316         optval="${opt#*=}"
 317         case "$opt" in
 318         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 319         --enable-?*|--disable-?*)
 320         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 321         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 322             if enabled experimental; then
 323                 $action $option
 324             else
 325                 log_echo "Ignoring $opt -- not in experimental mode."
 326             fi
 327         else
 328             process_common_cmdline $opt
 329         fi
 330         ;;
 331         *) process_common_cmdline "$opt"
 332         ;;
 333         esac
 334     done
 335 }
 336
 337 post_process_cmdline() {
 338     local c
 339
 340     # If the codec family is disabled, disable all components of that family.
 341     # If the codec family is enabled, enable all components of that family.
 342     log_echo "Configuring selected codecs"
 343     for c in ${CODECS}; do
 344         disabled ${c%%_*} && disable ${c}
 345         enabled ${c%%_*} && enable ${c}
 346     done
 347
 348     # Enable all detected codecs, if they haven't been disabled
 349     for c in ${CODECS}; do soft_enable $c; done
 350
 351     # Enable the codec family if any component of that family is enabled
 352     for c in ${CODECS}; do
 353         enabled $c && enable ${c%_*}
 354     done
 355
 356     # Set the {en,de}coders variable if any algorithm in that class is enabled
 357     for c in ${CODECS}; do
 358         enabled ${c} && enable ${c##*_}s
 359     done
 360 }
 361
 362
 363 process_targets() {
 364     enabled child || write_common_config_banner
 365     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 366
 367     # TODO: add host tools target (obj_int_extract, etc)
 368
 369     # For fat binaries, call configure recursively to configure for each
 370     # binary architecture to be included.
 371     if enabled universal; then
 372         # Call configure (ourselves) for each subarchitecture
 373         for arch in $fat_bin_archs; do
 374             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 375         done
 376     fi
 377
 378     # The write_common_config (config.mk) logic is deferred until after the
 379     # recursive calls to configure complete, becuase we want our universal
 380     # targets to be executed last.
 381     write_common_config_targets
 382     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 383
 384     # Calculate the default distribution name, based on the enabled features
 385     local cf
 386     local DIST_DIR=vpx
 387     for cf in $CODEC_FAMILIES; do
 388         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 389             DIST_DIR="${DIST_DIR}-${cf}"
 390         elif enabled ${cf}_encoder; then
 391             DIST_DIR="${DIST_DIR}-${cf}cx"
 392         elif enabled ${cf}_decoder; then
 393             DIST_DIR="${DIST_DIR}-${cf}dx"
 394         fi
 395     done
 396     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 397     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 398     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 399     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 400     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 401     case "${tgt_os}" in
 402     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 403           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 404           ;;
 405     esac
 406     if [ -f "${source_path}/build/make/version.sh" ]; then
 407         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 408         DIST_DIR="${DIST_DIR}-${ver}"
 409         VERSION_STRING=${ver}
 410         ver=${ver%%-*}
 411         VERSION_PATCH=${ver##*.}
 412         ver=${ver%.*}
 413         VERSION_MINOR=${ver##*.}
 414         ver=${ver#v}
 415         VERSION_MAJOR=${ver%.*}
 416     fi
 417     enabled child || cat <<EOF >> config.mk
 418
 419 PREFIX=${prefix}
 420 ifeq (\$(MAKECMDGOALS),dist)
 421 DIST_DIR?=${DIST_DIR}
 422 else
 423 DIST_DIR?=\$(DESTDIR)${prefix}
 424 endif
 425 LIBSUBDIR=${libdir##${prefix}/}
 426
 427 VERSION_STRING=${VERSION_STRING}
 428
 429 VERSION_MAJOR=${VERSION_MAJOR}
 430 VERSION_MINOR=${VERSION_MINOR}
 431 VERSION_PATCH=${VERSION_PATCH}
 432
 433 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 434 EOF
 435     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 436
 437     #
 438     # Write makefiles for all enabled targets
 439     #
 440     for tgt in libs examples docs solution; do
 441         local tgt_fn="$tgt-$toolchain.mk"
 442
 443         if enabled $tgt; then
 444             echo "Creating makefiles for ${toolchain} ${tgt}"
 445             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 446             #write_${tgt}_config
 447         fi
 448     done
 449
 450 }
 451
 452 process_detect() {
 453     if [ -z "$CC" ]; then
 454         echo "Bypassing toolchain for environment detection."
 455         enable external_build
 456         check_header() {
 457             log fake_check_header "$@"
 458             header=$1
 459             shift
 460             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 461             disable $var
 462             case $header in
 463                 stdio.h)
 464                     true;
 465                 ;;
 466                 *)
 467                     local result=false
 468                     for d in "$@"; do
 469                         [ -f "${d##-I}/$header" ] && result=true && break
 470                     done
 471                     ${result:-true}
 472             esac && enable $var
 473         }
 474         check_ld() {
 475             true
 476         }
 477     fi
 478     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 479     check_ld <<EOF || die "Toolchain is unable to link executables"
 480 int main(void) {return 0;}
 481 EOF
 482     # check system headers
 483     check_header stdint.h
 484     check_header pthread.h
 485     check_header sys/mman.h
 486
 487     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 488 }
 489
 490 process_toolchain() {
 491     process_common_toolchain
 492
 493     # Handle universal binaries for this architecture
 494     case $toolchain in
 495         universal-darwin*)
 496             local darwin_ver=${tgt_os##darwin}
 497             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 498
 499             # Intel
 500             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 501             if [ $darwin_ver -gt 8 ]; then
 502                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 503             fi
 504             ;;
 505     esac
 506
 507
 508     # Enable some useful compiler flags
 509     if enabled gcc; then
 510         enabled werror && check_add_cflags -Werror
 511         check_add_cflags -Wall
 512         check_add_cflags -Wdeclaration-after-statement
 513         check_add_cflags -Wdisabled-optimization
 514         check_add_cflags -Wpointer-arith
 515         check_add_cflags -Wtype-limits
 516         check_add_cflags -Wcast-qual
 517         check_add_cflags -Wundef
 518         check_add_cflags -Wvla
 519         enabled extra_warnings || check_add_cflags -Wno-unused-function
 520     fi
 521
 522     if enabled icc; then
 523         enabled werror && check_add_cflags -Werror
 524         check_add_cflags -Wall
 525         check_add_cflags -Wpointer-arith
 526
 527         # ICC has a number of floating point optimizations that we disable
 528         # in favor of deterministic output WRT to other compilers
 529         add_cflags -fp-model precise
 530     fi
 531
 532     # Enable extra, harmless warnings. These might provide additional insight
 533     # to what the compiler is doing and why, but in general, but they shouldn't
 534     # be treated as fatal, even if we're treating warnings as errors.
 535     GCC_EXTRA_WARNINGS="
 536         -Wdisabled-optimization
 537         -Winline
 538     "
 539     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 540     RVCT_EXTRA_WARNINGS="
 541         --remarks
 542     "
 543     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 544     if enabled extra_warnings; then
 545         for w in ${EXTRA_WARNINGS}; do
 546             check_add_cflags ${w}
 547             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 548         done
 549     fi
 550
 551     # ccache only really works on gcc toolchains
 552     enabled gcc || soft_disable ccache
 553     if enabled mips; then
 554         enable dequant_tokens
 555         enable dc_recon
 556     fi
 557
 558     # Enable the postbuild target if building for visual studio.
 559     case "$tgt_cc" in
 560         vs*) enable msvs
 561              enable solution
 562              vs_version=${tgt_cc##vs}
 563              all_targets="${all_targets} solution"
 564         ;;
 565     esac
 566
 567     # Other toolchain specific defaults
 568     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 569
 570     if enabled postproc_visualizer; then
 571         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 572     fi
 573 }
 574
 575
 576 ##
 577 ## END APPLICATION SPECIFIC CONFIGURATION
 578 ##
 579 CONFIGURE_ARGS="$@"
 580 process "$@"
 581 cat <<EOF > ${BUILD_PFX}vpx_config.c
 582 static const char* const cfg = "$CONFIGURE_ARGS";
 583 const char *vpx_codec_build_config(void) {return cfg;}
 584 EOF