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