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   --libc=PATH                     path to alternate libc
  26   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  27                                   supported by hardware [auto]
  28   ${toggle_codec_srcs}            in/exclude codec library source code
  29   ${toggle_debug_libs}            in/exclude debug version of libraries
  30   ${toggle_md5}                   support for output of checksum data
  31   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  32   ${toggle_vp8}                   VP8 codec support
  33   ${toggle_psnr}                  output of PSNR data, if supported (encoders)
  34   ${toggle_mem_tracker}           track memory usage
  35   ${toggle_postproc}              postprocessing
  36   ${toggle_multithread}           multithreaded encoding and decoding.
  37   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  38   ${toggle_realtime_only}         enable this option while building for real-time encoding
  39   ${toggle_runtime_cpu_detect}    runtime cpu detection
  40   ${toggle_shared}                shared library support
  41
  42 Codecs:
  43   Codecs can be selectively enabled or disabled individually, or by family:
  44       --disable-<codec>
  45   is equivalent to:
  46       --disable-<codec>-encoder
  47       --disable-<codec>-decoder
  48
  49   Codecs available in this distribution:
  50 EOF
  51 #restore editor state '
  52
  53     local family;
  54     local last_family;
  55     local c;
  56     local str;
  57     for c in ${CODECS}; do
  58         family=${c%_*}
  59         if [ "${family}" != "${last_family}" ]; then
  60             [ -z "${str}" ] || echo "${str}"
  61             str="$(printf '    %10s:' ${family})"
  62         fi
  63         str="${str} $(printf '%10s' ${c#*_})"
  64         last_family=${family}
  65     done
  66     echo "${str}"
  67     show_help_post
  68 }
  69
  70 ##
  71 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  72 ##
  73
  74 # all_platforms is a list of all supported target platforms. Maintain
  75 # alphabetically by architecture, generic-gnu last.
  76 all_platforms="${all_platforms} armv5te-linux-rvct"
  77 all_platforms="${all_platforms} armv5te-linux-gcc"
  78 all_platforms="${all_platforms} armv5te-symbian-gcc"
  79 all_platforms="${all_platforms} armv5te-wince-vs8"
  80 all_platforms="${all_platforms} armv6-darwin-gcc"
  81 all_platforms="${all_platforms} armv6-linux-rvct"
  82 all_platforms="${all_platforms} armv6-linux-gcc"
  83 all_platforms="${all_platforms} armv6-symbian-gcc"
  84 all_platforms="${all_platforms} armv6-wince-vs8"
  85 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  86 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  87 all_platforms="${all_platforms} iwmmxt-wince-vs8"
  88 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  89 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  90 all_platforms="${all_platforms} iwmmxt2-wince-vs8"
  91 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  92 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  93 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  94 all_platforms="${all_platforms} mips32-linux-gcc"
  95 all_platforms="${all_platforms} ppc32-darwin8-gcc"
  96 all_platforms="${all_platforms} ppc32-darwin9-gcc"
  97 all_platforms="${all_platforms} ppc64-darwin8-gcc"
  98 all_platforms="${all_platforms} ppc64-darwin9-gcc"
  99 all_platforms="${all_platforms} ppc64-linux-gcc"
 100 all_platforms="${all_platforms} x86-darwin8-gcc"
 101 all_platforms="${all_platforms} x86-darwin8-icc"
 102 all_platforms="${all_platforms} x86-darwin9-gcc"
 103 all_platforms="${all_platforms} x86-darwin9-icc"
 104 all_platforms="${all_platforms} x86-linux-gcc"
 105 all_platforms="${all_platforms} x86-linux-icc"
 106 all_platforms="${all_platforms} x86-solaris-gcc"
 107 all_platforms="${all_platforms} x86-win32-gcc"
 108 all_platforms="${all_platforms} x86-win32-vs7"
 109 all_platforms="${all_platforms} x86-win32-vs8"
 110 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 111 all_platforms="${all_platforms} x86_64-linux-gcc"
 112 all_platforms="${all_platforms} x86_64-linux-icc"
 113 all_platforms="${all_platforms} x86_64-solaris-gcc"
 114 all_platforms="${all_platforms} x86_64-win64-vs8"
 115 all_platforms="${all_platforms} universal-darwin8-gcc"
 116 all_platforms="${all_platforms} universal-darwin9-gcc"
 117 all_platforms="${all_platforms} generic-gnu"
 118
 119 # all_targets is a list of all targets that can be configured
 120 # note that these should be in dependency order for now.
 121 all_targets="libs examples docs"
 122
 123 # all targets available are enabled, by default.
 124 for t in ${all_targets}; do
 125     [ -f ${source_path}/${t}.mk ] && enable ${t}
 126 done
 127
 128 # check installed doxygen version
 129 doxy_version=$(doxygen --version 2>/dev/null)
 130 doxy_major=${doxy_version%%.*}
 131 if [ ${doxy_major:-0} -ge 1 ]; then
 132     doxy_version=${doxy_version#*.}
 133     doxy_minor=${doxy_version%%.*}
 134     doxy_patch=${doxy_version##*.}
 135
 136     [ $doxy_major -gt 1 ] && enable doxygen
 137     [ $doxy_minor -gt 5 ] && enable doxygen
 138     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 139 fi
 140
 141 # install everything except the sources, by default. sources will have
 142 # to be enabled when doing dist builds, since that's no longer a common
 143 # case.
 144 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 145 enable install_bins
 146 enable install_libs
 147
 148 enable optimizations
 149 enable fast_unaligned #allow unaligned accesses, if supported by hw
 150 enable md5
 151 enable spatial_resampling
 152 enable multithread
 153
 154 [ -d ${source_path}/../include ] && enable alt_tree_layout
 155 for d in vp8; do
 156     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 157 done
 158
 159 if ! enabled alt_tree_layout; then
 160 # development environment
 161 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 162 else
 163 # customer environment
 164 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 165 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 166
 167 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 168 fi
 169
 170 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 171 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 172
 173 ARCH_LIST="
 174     arm
 175     mips
 176     x86
 177     x86_64
 178     ppc32
 179     ppc64
 180 "
 181 ARCH_EXT_LIST="
 182     armv5te
 183     armv6
 184     armv7
 185     iwmmxt
 186     iwmmxt2
 187
 188     mips32
 189
 190     mmx
 191     sse
 192     sse2
 193     sse3
 194     ssse3
 195
 196     altivec
 197 "
 198 HAVE_LIST="
 199     ${ARCH_EXT_LIST}
 200     vpx_ports
 201     stdint_h
 202     alt_tree_layout
 203     pthread_h
 204     sys_mman_h
 205 "
 206 CONFIG_LIST="
 207     external_build
 208     install_docs
 209     install_bins
 210     install_libs
 211     install_srcs
 212     debug
 213     gprof
 214     gcov
 215     rvct
 216     gcc
 217     msvs
 218     pic
 219     big_endian
 220
 221     codec_srcs
 222     debug_libs
 223     fast_unaligned
 224     mem_manager
 225     mem_tracker
 226     mem_checks
 227     md5
 228
 229     dequant_tokens
 230     dc_recon
 231     new_tokens
 232     runtime_cpu_detect
 233     postproc
 234     postproc_generic
 235     multithread
 236     psnr
 237     ${CODECS}
 238     ${CODEC_FAMILIES}
 239     encoders
 240     decoders
 241     static_msvcrt
 242     spatial_resampling
 243     realtime_only
 244     shared
 245 "
 246 CMDLINE_SELECT="
 247     extra_warnings
 248     werror
 249     install_docs
 250     install_bins
 251     install_libs
 252     install_srcs
 253     debug
 254     gprof
 255     gcov
 256     pic
 257     optimizations
 258     ccache
 259     runtime_cpu_detect
 260
 261     libs
 262     examples
 263     libc
 264     fast_unaligned
 265     codec_srcs
 266     debug_libs
 267     md5
 268
 269     dequant_tokens
 270     dc_recon
 271     new_tokens
 272     postproc
 273     postproc_generic
 274     multithread
 275     psnr
 276     ${CODECS}
 277     ${CODEC_FAMILIES}
 278     static_msvcrt
 279     mem_tracker
 280     spatial_resampling
 281     realtime_only
 282     shared
 283 "
 284
 285 process_cmdline() {
 286     for opt do
 287         optval="${opt#*=}"
 288         case "$opt" in
 289         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 290         *) process_common_cmdline $opt
 291         ;;
 292         esac
 293     done
 294 }
 295
 296 post_process_cmdline() {
 297     local c
 298
 299     # If the codec family is disabled, disable all components of that family.
 300     # If the codec family is enabled, enable all components of that family.
 301     log_echo "Configuring selected codecs"
 302     for c in ${CODECS}; do
 303         disabled ${c%%_*} && disable ${c}
 304         enabled ${c%%_*} && enable ${c}
 305     done
 306
 307     # Enable all detected codecs, if they haven't been disabled
 308     for c in ${CODECS}; do soft_enable $c; done
 309
 310     # Enable the codec family if any component of that family is enabled
 311     for c in ${CODECS}; do
 312         enabled $c && enable ${c%_*}
 313     done
 314
 315     # Set the {en,de}coders variable if any algorithm in that class is enabled
 316     for c in ${CODECS}; do
 317         enabled ${c} && enable ${c##*_}s
 318     done
 319
 320
 321 }
 322
 323
 324 process_targets() {
 325     enabled child || write_common_config_banner
 326     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 327
 328     # TODO: add host tools target (obj_int_extract, etc)
 329
 330     # For fat binaries, call configure recursively to configure for each
 331     # binary architecture to be included.
 332     if enabled universal; then
 333         # Call configure (ourselves) for each subarchitecture
 334         for arch in $fat_bin_archs; do
 335             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 336         done
 337     fi
 338
 339     # The write_common_config (config.mk) logic is deferred until after the
 340     # recursive calls to configure complete, becuase we want our universal
 341     # targets to be executed last.
 342     write_common_config_targets
 343     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 344
 345     # Calculate the default distribution name, based on the enabled features
 346     local cf
 347     local DIST_DIR=vpx
 348     for cf in $CODEC_FAMILIES; do
 349         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 350             DIST_DIR="${DIST_DIR}-${cf}"
 351         elif enabled ${cf}_encoder; then
 352             DIST_DIR="${DIST_DIR}-${cf}cx"
 353         elif enabled ${cf}_decoder; then
 354             DIST_DIR="${DIST_DIR}-${cf}dx"
 355         fi
 356     done
 357     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 358     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 359     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 360     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 361     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 362     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 363     case "${tgt_os}" in
 364     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 365           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 366           ;;
 367     esac
 368     if [ -f "${source_path}/build/make/version.sh" ]; then
 369         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 370         DIST_DIR="${DIST_DIR}-${ver}"
 371         ver=${ver%%-*}
 372         VERSION_PATCH=${ver##*.}
 373         ver=${ver%.*}
 374         VERSION_MINOR=${ver##*.}
 375         ver=${ver#v}
 376         VERSION_MAJOR=${ver%.*}
 377     fi
 378     enabled child || cat <<EOF >> config.mk
 379 ifeq (\$(MAKECMDGOALS),dist)
 380 DIST_DIR?=${DIST_DIR}
 381 else
 382 DIST_DIR?=\$(DESTDIR)${prefix}
 383 endif
 384 LIBSUBDIR=${libdir##${prefix}/}
 385
 386 VERSION_MAJOR=${VERSION_MAJOR}
 387 VERSION_MINOR=${VERSION_MINOR}
 388 VERSION_PATCH=${VERSION_PATCH}
 389
 390 EOF
 391     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 392
 393     #
 394     # Write makefiles for all enabled targets
 395     #
 396     for tgt in libs examples docs solution; do
 397         local tgt_fn="$tgt-$toolchain.mk"
 398
 399         if enabled $tgt; then
 400             echo "Creating makefiles for ${toolchain} ${tgt}"
 401             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 402             #write_${tgt}_config
 403         fi
 404     done
 405
 406 }
 407
 408 process_detect() {
 409     if enabled shared; then
 410         # Can only build shared libs on a subset of platforms. Doing this check
 411         # here rather than at option parse time because the target auto-detect
 412         # magic happens after the command line has been parsed.
 413         enabled linux || die "--enable-shared only supported on ELF for now"
 414     fi
 415     if [ -z "$CC" ]; then
 416         echo "Bypassing toolchain for environment detection."
 417         enable external_build
 418         check_header() {
 419             log fake_check_header "$@"
 420             header=$1
 421             shift
 422             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 423             disable $var
 424             case $header in
 425                 stdio.h)
 426                     true;
 427                 ;;
 428                 *)
 429                     local result=false
 430                     for d in "$@"; do
 431                         [ -f "${d##-I}/$header" ] && result=true && break
 432                     done
 433                     ${result:-true}
 434             esac && enable $var
 435         }
 436         check_ld() {
 437             true
 438         }
 439     fi
 440     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 441     check_ld <<EOF || die "Toolchain is unable to link executables"
 442 int main(void) {return 0;}
 443 EOF
 444     # check system headers
 445     check_header stdint.h
 446     check_header pthread.h
 447     check_header sys/mman.h
 448
 449     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 450 }
 451
 452 process_toolchain() {
 453     process_common_toolchain
 454
 455     # Handle universal binaries for this architecture
 456     case $toolchain in
 457         universal-darwin*)
 458             local darwin_ver=${tgt_os##darwin}
 459             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 460
 461             # Intel
 462             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 463             if [ $darwin_ver -gt 8 ]; then
 464                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 465             fi
 466             ;;
 467     esac
 468
 469
 470     # Enable some useful compiler flags
 471     if enabled gcc; then
 472         enabled werror && check_add_cflags -Werror
 473         check_add_cflags -Wall
 474         check_add_cflags -Wdeclaration-after-statement
 475         check_add_cflags -Wdisabled-optimization
 476         check_add_cflags -Wpointer-arith
 477         check_add_cflags -Wtype-limits
 478         check_add_cflags -Wcast-qual
 479         enabled extra_warnings || check_add_cflags -Wno-unused
 480     fi
 481
 482     if enabled icc; then
 483         enabled werror && check_add_cflags -Werror
 484         check_add_cflags -Wall
 485         check_add_cflags -Wpointer-arith
 486
 487         # ICC has a number of floating point optimizations that we disable
 488         # in favor of deterministic output WRT to other compilers
 489         add_cflags -fp-model precise
 490     fi
 491
 492     # Enable extra, harmless warnings. These might provide additional insight
 493     # to what the compiler is doing and why, but in general, but they shouldn't
 494     # be treated as fatal, even if we're treating warnings as errors.
 495     GCC_EXTRA_WARNINGS="
 496         -Wdisabled-optimization
 497         -Winline
 498     "
 499     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 500     RVCT_EXTRA_WARNINGS="
 501         --remarks
 502     "
 503     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 504     if enabled extra_warnings; then
 505         for w in ${EXTRA_WARNINGS}; do
 506             check_add_cflags ${w}
 507             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 508         done
 509     fi
 510
 511     # ccache only really works on gcc toolchains
 512     enabled gcc || soft_disable ccache
 513     if enabled mips; then
 514         enable dequant_tokens
 515         enable dc_recon
 516     fi
 517
 518     # Enable the postbuild target if building for visual studio.
 519     case "$tgt_cc" in
 520         vs*) enable msvs
 521              enable solution
 522              vs_version=${tgt_cc##vs}
 523              all_targets="${all_targets} solution"
 524              INLINE=__inline
 525              FORCEINLINE=__forceinline
 526         ;;
 527     esac
 528
 529     # Other toolchain specific defaults
 530     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 531 }
 532
 533
 534 ##
 535 ## END APPLICATION SPECIFIC CONFIGURATION
 536 ##
 537 CONFIGURE_ARGS="$@"
 538 process "$@"
 539 cat <<EOF > ${BUILD_PFX}vpx_config.c
 540 static const char* const cfg = "$CONFIGURE_ARGS";
 541 const char *vpx_codec_build_config(void) {return cfg;}
 542 EOF