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   ${toggle_arm_asm_detok}         assembly version of the detokenizer (ARM platforms only)
  42
  43 Codecs:
  44   Codecs can be selectively enabled or disabled individually, or by family:
  45       --disable-<codec>
  46   is equivalent to:
  47       --disable-<codec>-encoder
  48       --disable-<codec>-decoder
  49
  50   Codecs available in this distribution:
  51 EOF
  52 #restore editor state '
  53
  54     local family;
  55     local last_family;
  56     local c;
  57     local str;
  58     for c in ${CODECS}; do
  59         family=${c%_*}
  60         if [ "${family}" != "${last_family}" ]; then
  61             [ -z "${str}" ] || echo "${str}"
  62             str="$(printf '    %10s:' ${family})"
  63         fi
  64         str="${str} $(printf '%10s' ${c#*_})"
  65         last_family=${family}
  66     done
  67     echo "${str}"
  68     show_help_post
  69 }
  70
  71 ##
  72 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  73 ##
  74
  75 # all_platforms is a list of all supported target platforms. Maintain
  76 # alphabetically by architecture, generic-gnu last.
  77 all_platforms="${all_platforms} armv5te-linux-rvct"
  78 all_platforms="${all_platforms} armv5te-linux-gcc"
  79 all_platforms="${all_platforms} armv5te-symbian-gcc"
  80 all_platforms="${all_platforms} armv5te-wince-vs8"
  81 all_platforms="${all_platforms} armv6-darwin-gcc"
  82 all_platforms="${all_platforms} armv6-linux-rvct"
  83 all_platforms="${all_platforms} armv6-linux-gcc"
  84 all_platforms="${all_platforms} armv6-symbian-gcc"
  85 all_platforms="${all_platforms} armv6-wince-vs8"
  86 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  87 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  88 all_platforms="${all_platforms} iwmmxt-wince-vs8"
  89 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  90 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  91 all_platforms="${all_platforms} iwmmxt2-wince-vs8"
  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} mips32-linux-gcc"
  96 all_platforms="${all_platforms} ppc32-darwin8-gcc"
  97 all_platforms="${all_platforms} ppc32-darwin9-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} x86-darwin8-gcc"
 102 all_platforms="${all_platforms} x86-darwin8-icc"
 103 all_platforms="${all_platforms} x86-darwin9-gcc"
 104 all_platforms="${all_platforms} x86-darwin9-icc"
 105 all_platforms="${all_platforms} x86-linux-gcc"
 106 all_platforms="${all_platforms} x86-linux-icc"
 107 all_platforms="${all_platforms} x86-solaris-gcc"
 108 all_platforms="${all_platforms} x86-win32-gcc"
 109 all_platforms="${all_platforms} x86-win32-vs7"
 110 all_platforms="${all_platforms} x86-win32-vs8"
 111 all_platforms="${all_platforms} x86-win32-vs9"
 112 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 113 all_platforms="${all_platforms} x86_64-linux-gcc"
 114 all_platforms="${all_platforms} x86_64-linux-icc"
 115 all_platforms="${all_platforms} x86_64-solaris-gcc"
 116 all_platforms="${all_platforms} x86_64-win64-vs8"
 117 all_platforms="${all_platforms} x86_64-win64-vs9"
 118 all_platforms="${all_platforms} universal-darwin8-gcc"
 119 all_platforms="${all_platforms} universal-darwin9-gcc"
 120 all_platforms="${all_platforms} generic-gnu"
 121
 122 # all_targets is a list of all targets that can be configured
 123 # note that these should be in dependency order for now.
 124 all_targets="libs examples docs"
 125
 126 # all targets available are enabled, by default.
 127 for t in ${all_targets}; do
 128     [ -f ${source_path}/${t}.mk ] && enable ${t}
 129 done
 130
 131 # check installed doxygen version
 132 doxy_version=$(doxygen --version 2>/dev/null)
 133 doxy_major=${doxy_version%%.*}
 134 if [ ${doxy_major:-0} -ge 1 ]; then
 135     doxy_version=${doxy_version#*.}
 136     doxy_minor=${doxy_version%%.*}
 137     doxy_patch=${doxy_version##*.}
 138
 139     [ $doxy_major -gt 1 ] && enable doxygen
 140     [ $doxy_minor -gt 5 ] && enable doxygen
 141     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 142 fi
 143
 144 # install everything except the sources, by default. sources will have
 145 # to be enabled when doing dist builds, since that's no longer a common
 146 # case.
 147 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 148 enable install_bins
 149 enable install_libs
 150
 151 enable optimizations
 152 enable fast_unaligned #allow unaligned accesses, if supported by hw
 153 enable md5
 154 enable spatial_resampling
 155 enable multithread
 156
 157 [ -d ${source_path}/../include ] && enable alt_tree_layout
 158 for d in vp8; do
 159     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 160 done
 161
 162 if ! enabled alt_tree_layout; then
 163 # development environment
 164 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 165 else
 166 # customer environment
 167 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 168 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 169
 170 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 171 fi
 172
 173 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 174 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 175
 176 ARCH_LIST="
 177     arm
 178     mips
 179     x86
 180     x86_64
 181     ppc32
 182     ppc64
 183 "
 184 ARCH_EXT_LIST="
 185     armv5te
 186     armv6
 187     armv7
 188     iwmmxt
 189     iwmmxt2
 190
 191     mips32
 192
 193     mmx
 194     sse
 195     sse2
 196     sse3
 197     ssse3
 198
 199     altivec
 200 "
 201 HAVE_LIST="
 202     ${ARCH_EXT_LIST}
 203     vpx_ports
 204     stdint_h
 205     alt_tree_layout
 206     pthread_h
 207     sys_mman_h
 208 "
 209 EXPERIMENT_LIST="
 210 "
 211 CONFIG_LIST="
 212     external_build
 213     install_docs
 214     install_bins
 215     install_libs
 216     install_srcs
 217     debug
 218     gprof
 219     gcov
 220     rvct
 221     gcc
 222     msvs
 223     pic
 224     big_endian
 225
 226     codec_srcs
 227     debug_libs
 228     fast_unaligned
 229     mem_manager
 230     mem_tracker
 231     mem_checks
 232     md5
 233
 234     dequant_tokens
 235     dc_recon
 236     runtime_cpu_detect
 237     postproc
 238     multithread
 239     psnr
 240     ${CODECS}
 241     ${CODEC_FAMILIES}
 242     encoders
 243     decoders
 244     static_msvcrt
 245     spatial_resampling
 246     realtime_only
 247     shared
 248     arm_asm_detok
 249
 250     experimental
 251     ${EXPERIMENT_LIST}
 252 "
 253 CMDLINE_SELECT="
 254     extra_warnings
 255     werror
 256     install_docs
 257     install_bins
 258     install_libs
 259     install_srcs
 260     debug
 261     gprof
 262     gcov
 263     pic
 264     optimizations
 265     ccache
 266     runtime_cpu_detect
 267
 268     libs
 269     examples
 270     libc
 271     fast_unaligned
 272     codec_srcs
 273     debug_libs
 274     md5
 275
 276     dequant_tokens
 277     dc_recon
 278     postproc
 279     multithread
 280     psnr
 281     ${CODECS}
 282     ${CODEC_FAMILIES}
 283     static_msvcrt
 284     mem_tracker
 285     spatial_resampling
 286     realtime_only
 287     shared
 288     arm_asm_detok
 289     experimental
 290 "
 291
 292 process_cmdline() {
 293     for opt do
 294         optval="${opt#*=}"
 295         case "$opt" in
 296         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 297         --enable-?*|--disable-?*)
 298         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 299         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 300             if enabled experimental; then
 301                 $action $option
 302             else
 303                 log_echo "Ignoring $opt -- not in experimental mode."
 304             fi
 305         else
 306             process_common_cmdline $opt
 307         fi
 308         ;;
 309         *) process_common_cmdline $opt
 310         ;;
 311         esac
 312     done
 313 }
 314
 315 post_process_cmdline() {
 316     local c
 317
 318     # If the codec family is disabled, disable all components of that family.
 319     # If the codec family is enabled, enable all components of that family.
 320     log_echo "Configuring selected codecs"
 321     for c in ${CODECS}; do
 322         disabled ${c%%_*} && disable ${c}
 323         enabled ${c%%_*} && enable ${c}
 324     done
 325
 326     # Enable all detected codecs, if they haven't been disabled
 327     for c in ${CODECS}; do soft_enable $c; done
 328
 329     # Enable the codec family if any component of that family is enabled
 330     for c in ${CODECS}; do
 331         enabled $c && enable ${c%_*}
 332     done
 333
 334     # Set the {en,de}coders variable if any algorithm in that class is enabled
 335     for c in ${CODECS}; do
 336         enabled ${c} && enable ${c##*_}s
 337     done
 338
 339
 340 }
 341
 342
 343 process_targets() {
 344     enabled child || write_common_config_banner
 345     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 346
 347     # TODO: add host tools target (obj_int_extract, etc)
 348
 349     # For fat binaries, call configure recursively to configure for each
 350     # binary architecture to be included.
 351     if enabled universal; then
 352         # Call configure (ourselves) for each subarchitecture
 353         for arch in $fat_bin_archs; do
 354             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 355         done
 356     fi
 357
 358     # The write_common_config (config.mk) logic is deferred until after the
 359     # recursive calls to configure complete, becuase we want our universal
 360     # targets to be executed last.
 361     write_common_config_targets
 362     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 363
 364     # Calculate the default distribution name, based on the enabled features
 365     local cf
 366     local DIST_DIR=vpx
 367     for cf in $CODEC_FAMILIES; do
 368         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 369             DIST_DIR="${DIST_DIR}-${cf}"
 370         elif enabled ${cf}_encoder; then
 371             DIST_DIR="${DIST_DIR}-${cf}cx"
 372         elif enabled ${cf}_decoder; then
 373             DIST_DIR="${DIST_DIR}-${cf}dx"
 374         fi
 375     done
 376     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 377     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 378     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 379     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 380     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 381     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 382     case "${tgt_os}" in
 383     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 384           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 385           ;;
 386     esac
 387     if [ -f "${source_path}/build/make/version.sh" ]; then
 388         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 389         DIST_DIR="${DIST_DIR}-${ver}"
 390         ver=${ver%%-*}
 391         VERSION_PATCH=${ver##*.}
 392         ver=${ver%.*}
 393         VERSION_MINOR=${ver##*.}
 394         ver=${ver#v}
 395         VERSION_MAJOR=${ver%.*}
 396     fi
 397     enabled child || cat <<EOF >> config.mk
 398 ifeq (\$(MAKECMDGOALS),dist)
 399 DIST_DIR?=${DIST_DIR}
 400 else
 401 DIST_DIR?=\$(DESTDIR)${prefix}
 402 endif
 403 LIBSUBDIR=${libdir##${prefix}/}
 404
 405 VERSION_MAJOR=${VERSION_MAJOR}
 406 VERSION_MINOR=${VERSION_MINOR}
 407 VERSION_PATCH=${VERSION_PATCH}
 408
 409 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 410 EOF
 411     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 412
 413     #
 414     # Write makefiles for all enabled targets
 415     #
 416     for tgt in libs examples docs solution; do
 417         local tgt_fn="$tgt-$toolchain.mk"
 418
 419         if enabled $tgt; then
 420             echo "Creating makefiles for ${toolchain} ${tgt}"
 421             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 422             #write_${tgt}_config
 423         fi
 424     done
 425
 426 }
 427
 428 process_detect() {
 429     if enabled shared; then
 430         # Can only build shared libs on a subset of platforms. Doing this check
 431         # here rather than at option parse time because the target auto-detect
 432         # magic happens after the command line has been parsed.
 433         enabled linux || die "--enable-shared only supported on ELF for now"
 434     fi
 435     if [ -z "$CC" ]; then
 436         echo "Bypassing toolchain for environment detection."
 437         enable external_build
 438         check_header() {
 439             log fake_check_header "$@"
 440             header=$1
 441             shift
 442             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 443             disable $var
 444             case $header in
 445                 stdio.h)
 446                     true;
 447                 ;;
 448                 *)
 449                     local result=false
 450                     for d in "$@"; do
 451                         [ -f "${d##-I}/$header" ] && result=true && break
 452                     done
 453                     ${result:-true}
 454             esac && enable $var
 455         }
 456         check_ld() {
 457             true
 458         }
 459     fi
 460     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 461     check_ld <<EOF || die "Toolchain is unable to link executables"
 462 int main(void) {return 0;}
 463 EOF
 464     # check system headers
 465     check_header stdint.h
 466     check_header pthread.h
 467     check_header sys/mman.h
 468
 469     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 470 }
 471
 472 process_toolchain() {
 473     process_common_toolchain
 474
 475     # Handle universal binaries for this architecture
 476     case $toolchain in
 477         universal-darwin*)
 478             local darwin_ver=${tgt_os##darwin}
 479             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 480
 481             # Intel
 482             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 483             if [ $darwin_ver -gt 8 ]; then
 484                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 485             fi
 486             ;;
 487     esac
 488
 489
 490     # Enable some useful compiler flags
 491     if enabled gcc; then
 492         enabled werror && check_add_cflags -Werror
 493         check_add_cflags -Wall
 494         check_add_cflags -Wdeclaration-after-statement
 495         check_add_cflags -Wdisabled-optimization
 496         check_add_cflags -Wpointer-arith
 497         check_add_cflags -Wtype-limits
 498         check_add_cflags -Wcast-qual
 499         enabled extra_warnings || check_add_cflags -Wno-unused
 500     fi
 501
 502     if enabled icc; then
 503         enabled werror && check_add_cflags -Werror
 504         check_add_cflags -Wall
 505         check_add_cflags -Wpointer-arith
 506
 507         # ICC has a number of floating point optimizations that we disable
 508         # in favor of deterministic output WRT to other compilers
 509         add_cflags -fp-model precise
 510     fi
 511
 512     # Enable extra, harmless warnings. These might provide additional insight
 513     # to what the compiler is doing and why, but in general, but they shouldn't
 514     # be treated as fatal, even if we're treating warnings as errors.
 515     GCC_EXTRA_WARNINGS="
 516         -Wdisabled-optimization
 517         -Winline
 518     "
 519     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 520     RVCT_EXTRA_WARNINGS="
 521         --remarks
 522     "
 523     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 524     if enabled extra_warnings; then
 525         for w in ${EXTRA_WARNINGS}; do
 526             check_add_cflags ${w}
 527             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 528         done
 529     fi
 530
 531     # ccache only really works on gcc toolchains
 532     enabled gcc || soft_disable ccache
 533     if enabled mips; then
 534         enable dequant_tokens
 535         enable dc_recon
 536     fi
 537
 538     # Enable the postbuild target if building for visual studio.
 539     case "$tgt_cc" in
 540         vs*) enable msvs
 541              enable solution
 542              vs_version=${tgt_cc##vs}
 543              all_targets="${all_targets} solution"
 544         ;;
 545     esac
 546
 547     # Other toolchain specific defaults
 548     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 549 }
 550
 551
 552 ##
 553 ## END APPLICATION SPECIFIC CONFIGURATION
 554 ##
 555 CONFIGURE_ARGS="$@"
 556 process "$@"
 557 cat <<EOF > ${BUILD_PFX}vpx_config.c
 558 static const char* const cfg = "$CONFIGURE_ARGS";
 559 const char *vpx_codec_build_config(void) {return cfg;}
 560 EOF