configure

   1 #!/bin/sh
   2
   3 # /bin/sh on Solaris is not a POSIX compatible shell, but /usr/bin/bash is.
   4 if [ `uname -s` = 'SunOS' -a "${POSIX_SHELL}" != "true" ]; then
   5     POSIX_SHELL="true"
   6     export POSIX_SHELL
   7     exec /usr/bin/env bash $0 "$@"
   8 fi
   9 unset POSIX_SHELL # clear it so if we invoke other scripts, they run as bash as well
  10
  11 msg() {
  12     echo "configure: $*"
  13 }
  14
  15 step_msg() {
  16     msg
  17     msg "$1"
  18     msg
  19 }
  20
  21 warn() {
  22     echo "configure: WARNING: $1"
  23 }
  24
  25 err() {
  26     echo "configure: error: $1"
  27     exit 1
  28 }
  29
  30 run() {
  31     msg "$@"
  32     "$@"
  33 }
  34
  35 need_ok() {
  36     if [ $? -ne 0 ]
  37     then
  38         err "$1"
  39     fi
  40 }
  41
  42 need_cmd() {
  43     if command -v $1 >/dev/null 2>&1
  44     then msg "found program '$1'"
  45     else err "program '$1' is missing, please install it"
  46     fi
  47 }
  48
  49 make_dir() {
  50     if [ ! -d $1 ]
  51     then
  52         run mkdir -p $1
  53     fi
  54 }
  55
  56 copy_if_changed() {
  57     if cmp -s $1 $2
  58     then
  59         msg "leaving $2 unchanged"
  60     else
  61         run cp -f $1 $2
  62         chmod u-w $2 # make copied artifact read-only
  63     fi
  64 }
  65
  66 move_if_changed() {
  67     if cmp -s $1 $2
  68     then
  69         msg "leaving $2 unchanged"
  70     else
  71         run mv -f $1 $2
  72         chmod u-w $2 # make moved artifact read-only
  73     fi
  74 }
  75
  76 putvar() {
  77     local T
  78     eval T=\$$1
  79     eval TLEN=\${#$1}
  80     if [ $TLEN -gt 35 ]
  81     then
  82         printf "configure: %-20s := %.35s ...\n" $1 "$T"
  83     else
  84         printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
  85     fi
  86     printf "%-20s := %s\n" $1 "$T" >>config.tmp
  87 }
  88
  89 putpathvar() {
  90     local T
  91     eval T=\$$1
  92     eval TLEN=\${#$1}
  93     if [ $TLEN -gt 35 ]
  94     then
  95         printf "configure: %-20s := %.35s ...\n" $1 "$T"
  96     else
  97         printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
  98     fi
  99     if [ -z "$T" ]
 100     then
 101         printf "%-20s := \n" $1 >>config.tmp
 102     else
 103         printf "%-20s := \"%s\"\n" $1 "$T" >>config.tmp
 104     fi
 105 }
 106
 107 probe() {
 108     local V=$1
 109     shift
 110     local P
 111     local T
 112     for P
 113     do
 114         T=$(command -v $P 2>&1)
 115         if [ $? -eq 0 ]
 116         then
 117             VER0=$($P --version 2>/dev/null \
 118                 |  grep -o '[vV]\?[0-9][0-9.][a-z0-9.-]*' | head -1 )
 119             if [ $? -eq 0 -a "x${VER0}" != "x" ]
 120             then
 121               VER="($VER0)"
 122             else
 123               VER=""
 124             fi
 125             break
 126         else
 127             VER=""
 128             T=""
 129         fi
 130     done
 131     eval $V=\$T
 132     putpathvar $V "$VER"
 133 }
 134
 135 probe_need() {
 136     probe $*
 137     local V=$1
 138     shift
 139     eval VV=\$$V
 140     if [ -z "$VV" ]
 141     then
 142         err "$V needed, but unable to find any of: $*"
 143     fi
 144 }
 145
 146 validate_opt () {
 147     for arg in $CFG_CONFIGURE_ARGS
 148     do
 149         isArgValid=0
 150         for option in $BOOL_OPTIONS
 151         do
 152             if test --disable-$option = $arg
 153             then
 154                 isArgValid=1
 155             fi
 156             if test --enable-$option = $arg
 157             then
 158                 isArgValid=1
 159             fi
 160         done
 161         for option in $VAL_OPTIONS
 162         do
 163             if echo "$arg" | grep -q -- "--$option="
 164             then
 165                 isArgValid=1
 166             fi
 167         done
 168         if [ "$arg" = "--help" ]
 169         then
 170             echo
 171             echo "No more help available for Configure options,"
 172             echo "check the Wiki or join our IRC channel"
 173             break
 174         else
 175             if test $isArgValid -eq 0
 176             then
 177                 err "Option '$arg' is not recognized"
 178             fi
 179         fi
 180     done
 181 }
 182
 183 # `valopt OPTION_NAME DEFAULT DOC` extracts a string-valued option
 184 # from command line, using provided default value for the option if
 185 # not present, and saves it to the generated config.mk.
 186 #
 187 # `valopt_nosave` is much the same, except that it does not save the
 188 # result to config.mk (instead the script should use `putvar` itself
 189 # later on to save it).  `valopt_core` is the core upon which the
 190 # other two are built.
 191
 192 valopt_core() {
 193     VAL_OPTIONS="$VAL_OPTIONS $2"
 194
 195     local SAVE=$1
 196     local OP=$2
 197     local DEFAULT=$3
 198     shift
 199     shift
 200     shift
 201     local DOC="$*"
 202     if [ $HELP -eq 0 ]
 203     then
 204         local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
 205         local V="CFG_${UOP}"
 206         local V_PROVIDED="${V}_PROVIDED"
 207         eval $V="$DEFAULT"
 208         for arg in $CFG_CONFIGURE_ARGS
 209         do
 210             if echo "$arg" | grep -q -- "--$OP="
 211             then
 212                 val=$(echo "$arg" | cut -f2 -d=)
 213                 eval $V=$val
 214                 eval $V_PROVIDED=1
 215             fi
 216         done
 217         if [ "$SAVE" = "save" ]
 218         then
 219             putvar $V
 220         fi
 221     else
 222         if [ -z "$DEFAULT" ]
 223         then
 224             DEFAULT="<none>"
 225         fi
 226         OP="${OP}=[${DEFAULT}]"
 227         printf "    --%-30s %s\n" "$OP" "$DOC"
 228     fi
 229 }
 230
 231 valopt_nosave() {
 232     valopt_core nosave "$@"
 233 }
 234
 235 valopt() {
 236     valopt_core save "$@"
 237 }
 238
 239 # `opt OPTION_NAME DEFAULT DOC` extracts a boolean-valued option from
 240 # command line, using the provided default value (0/1) for the option
 241 # if not present, and saves it to the generated config.mk.
 242 #
 243 # `opt_nosave` is much the same, except that it does not save the
 244 # result to config.mk (instead the script should use `putvar` itself
 245 # later on to save it).  `opt_core` is the core upon which the other
 246 # two are built.
 247
 248 opt_core() {
 249     BOOL_OPTIONS="$BOOL_OPTIONS $2"
 250
 251     local SAVE=$1
 252     local OP=$2
 253     local DEFAULT=$3
 254     shift
 255     shift
 256     shift
 257     local DOC="$*"
 258     local FLAG=""
 259
 260     if [ $DEFAULT -eq 0 ]
 261     then
 262         FLAG="enable"
 263         DEFAULT_FLAG="disable"
 264     else
 265         FLAG="disable"
 266         DEFAULT_FLAG="enable"
 267         DOC="don't $DOC"
 268     fi
 269
 270     if [ $HELP -eq 0 ]
 271     then
 272         for arg in $CFG_CONFIGURE_ARGS
 273         do
 274             if [ "$arg" = "--${FLAG}-${OP}" ]
 275             then
 276                 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
 277                 FLAG=$(echo $FLAG | tr 'a-z' 'A-Z')
 278                 local V="CFG_${FLAG}_${OP}"
 279                 local V_PROVIDED="CFG_${FLAG}_${OP}_PROVIDED"
 280                 eval $V=1
 281                 eval $V_PROVIDED=1
 282                 if [ "$SAVE" = "save" ]
 283                 then
 284                    putvar $V
 285                 fi
 286             elif [ "$arg" = "--${DEFAULT_FLAG}-${OP}" ]
 287             then
 288                 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
 289                 DEFAULT_FLAG=$(echo $DEFAULT_FLAG | tr 'a-z' 'A-Z')
 290                 local V_PROVIDED="CFG_${DEFAULT_FLAG}_${OP}_PROVIDED"
 291                 eval $V_PROVIDED=1
 292             fi
 293         done
 294     else
 295         if [ -n "$META" ]
 296         then
 297             OP="$OP=<$META>"
 298         fi
 299         printf "    --%-30s %s\n" "$FLAG-$OP" "$DOC"
 300      fi
 301 }
 302
 303 opt_nosave() {
 304     opt_core nosave "$@"
 305 }
 306
 307 opt() {
 308     opt_core save "$@"
 309 }
 310
 311 envopt() {
 312     local NAME=$1
 313     local V="CFG_${NAME}"
 314     eval VV=\$$V
 315
 316     # If configure didn't set a value already, then check environment.
 317     #
 318     # (It is recommended that the configure script always check the
 319     # environment before setting any values to envopt variables; see
 320     # e.g.  how CFG_CC is handled, where it first checks `-z "$CC"`,
 321     # and issues msg if it ends up employing that provided value.)
 322     if [ -z "$VV" ]
 323     then
 324         eval $V=\$$NAME
 325         eval VV=\$$V
 326     fi
 327
 328     # If script or environment provided a value, save it.
 329     if [ -n "$VV" ]
 330     then
 331         putvar $V
 332     fi
 333 }
 334
 335 enable_if_not_disabled() {
 336     local OP=$1
 337     local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
 338     local ENAB_V="CFG_ENABLE_$UOP"
 339     local EXPLICITLY_DISABLED="CFG_DISABLE_${UOP}_PROVIDED"
 340     eval VV=\$$EXPLICITLY_DISABLED
 341     if [ -z "$VV" ]; then
 342         eval $ENAB_V=1
 343     fi
 344 }
 345
 346 to_gnu_triple() {
 347     case $1 in
 348         i686-pc-windows-gnu) echo i686-w64-mingw32 ;;
 349         x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;;
 350         *) echo $1 ;;
 351     esac
 352 }
 353
 354 # Prints the absolute path of a directory to stdout
 355 abs_path() {
 356     local _path="$1"
 357     # Unset CDPATH because it causes havok: it makes the destination unpredictable
 358     # and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null
 359     # for good measure.
 360     (unset CDPATH && cd "$_path" > /dev/null && pwd)
 361 }
 362
 363 HELP=0
 364 for arg; do
 365     case "$arg" in
 366         --help) HELP=1;;
 367     esac
 368 done
 369
 370 msg "looking for configure programs"
 371 need_cmd cmp
 372 need_cmd mkdir
 373 need_cmd printf
 374 need_cmd cut
 375 need_cmd head
 376 need_cmd grep
 377 need_cmd xargs
 378 need_cmd cp
 379 need_cmd find
 380 need_cmd uname
 381 need_cmd date
 382 need_cmd tr
 383 need_cmd sed
 384 need_cmd file
 385 need_cmd make
 386
 387 CFG_SRC_DIR="$(abs_path $(dirname $0))/"
 388 CFG_SRC_DIR_RELATIVE="$(dirname $0)/"
 389 CFG_BUILD_DIR="$(pwd)/"
 390 CFG_SELF="$0"
 391 CFG_CONFIGURE_ARGS="$@"
 392
 393
 394 case "${CFG_SRC_DIR}" in
 395     *\ * )
 396         err "The path to the rust source directory contains spaces, which is not supported"
 397         ;;
 398     *)
 399         ;;
 400 esac
 401
 402
 403 OPTIONS=""
 404 if [ "$HELP" -eq 1 ]
 405 then
 406     echo
 407     echo "Usage: $CFG_SELF [options]"
 408     echo
 409     echo "Options:"
 410     echo
 411 else
 412     msg "recreating config.tmp"
 413     echo '' >config.tmp
 414
 415     step_msg "processing $CFG_SELF args"
 416 fi
 417
 418 BOOL_OPTIONS=""
 419 VAL_OPTIONS=""
 420
 421 opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
 422 opt valgrind 0 "run tests with valgrind (memcheck by default)"
 423 opt helgrind 0 "run tests with helgrind instead of memcheck"
 424 opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
 425 opt docs     1 "build standard library documentation"
 426 opt compiler-docs     0 "build compiler documentation"
 427 opt optimize-tests 1 "build tests with optimizations"
 428 opt debuginfo-tests 0 "build tests with debugger metadata"
 429 opt quiet-tests 0 "enable quieter output when running tests"
 430 opt libcpp 1 "build llvm with libc++ instead of libstdc++ when using clang"
 431 opt llvm-assertions 0 "build LLVM with assertions"
 432 opt debug-assertions 0 "build with debugging assertions"
 433 opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
 434 opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
 435 opt sccache 0 "invoke gcc/clang via sccache to reuse object files between builds"
 436 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
 437 opt local-rebuild 0 "assume local-rust matches the current version, for rebuilds; implies local-rust, and is implied if local-rust already matches the current version"
 438 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
 439 opt llvm-link-shared 0 "prefer shared linking to LLVM (llvm-config --link-shared)"
 440 opt llvm-clean-rebuild 0 "delete LLVM build directory on rebuild"
 441 opt rpath 1 "build rpaths into rustc itself"
 442 opt stage0-landing-pads 1 "enable landing pads during bootstrap with stage0"
 443 # This is used by the automation to produce single-target nightlies
 444 opt dist-host-only 0 "only install bins for the host architecture"
 445 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
 446 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
 447 opt codegen-tests 1 "run the src/test/codegen tests"
 448 opt option-checking 1 "complain about unrecognized options in this configure script"
 449 opt ninja 0 "build LLVM using the Ninja generator (for MSVC, requires building in the correct environment)"
 450 opt locked-deps 0 "force Cargo.lock to be up to date"
 451 opt vendor 0 "enable usage of vendored Rust crates"
 452 opt sanitizers 0 "build the sanitizer runtimes (asan, lsan, msan, tsan)"
 453 opt dist-src 1 "when building tarballs enables building a source tarball"
 454 opt cargo-openssl-static 0 "static openssl in cargo"
 455 opt profiler 0 "build the profiler runtime"
 456
 457 # Optimization and debugging options. These may be overridden by the release channel, etc.
 458 opt_nosave optimize 1 "build optimized rust code"
 459 opt_nosave optimize-cxx 1 "build optimized C++ code"
 460 opt_nosave optimize-llvm 1 "build optimized LLVM"
 461 opt_nosave llvm-assertions 0 "build LLVM with assertions"
 462 opt_nosave debug-assertions 0 "build with debugging assertions"
 463 opt_nosave llvm-release-debuginfo 0 "build LLVM with debugger metadata"
 464 opt_nosave debuginfo 0 "build with debugger metadata"
 465 opt_nosave debuginfo-lines 0 "build with line number debugger metadata"
 466 opt_nosave debuginfo-only-std 0 "build only libstd with debugging information"
 467 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
 468
 469 valopt localstatedir "/var/lib" "local state directory"
 470 valopt sysconfdir "/etc" "install system configuration files"
 471
 472 valopt datadir "${CFG_PREFIX}/share" "install data"
 473 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
 474 valopt llvm-root "" "set LLVM root"
 475 valopt python "" "set path to python"
 476 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
 477 valopt build "" "GNUs ./configure syntax LLVM build triple"
 478 valopt android-cross-path "" "Android NDK standalone path (deprecated)"
 479 valopt i686-linux-android-ndk "" "i686-linux-android NDK standalone path"
 480 valopt arm-linux-androideabi-ndk "" "arm-linux-androideabi NDK standalone path"
 481 valopt armv7-linux-androideabi-ndk "" "armv7-linux-androideabi NDK standalone path"
 482 valopt aarch64-linux-android-ndk "" "aarch64-linux-android NDK standalone path"
 483 valopt x86_64-linux-android-ndk "" "x86_64-linux-android NDK standalone path"
 484 valopt nacl-cross-path  "" "NaCl SDK path (Pepper Canary is recommended). Must be absolute!"
 485 valopt musl-root "/usr/local" "MUSL root installation directory (deprecated)"
 486 valopt musl-root-x86_64 "" "x86_64-unknown-linux-musl install directory"
 487 valopt musl-root-i686 "" "i686-unknown-linux-musl install directory"
 488 valopt musl-root-arm "" "arm-unknown-linux-musleabi install directory"
 489 valopt musl-root-armhf "" "arm-unknown-linux-musleabihf install directory"
 490 valopt musl-root-armv7 "" "armv7-unknown-linux-musleabihf install directory"
 491 valopt extra-filename "" "Additional data that is hashed and passed to the -C extra-filename flag"
 492 valopt qemu-armhf-rootfs "" "rootfs in qemu testing, you probably don't want to use this"
 493 valopt experimental-targets "" "experimental LLVM targets to build"
 494
 495 if [ -e ${CFG_SRC_DIR}.git ]
 496 then
 497     valopt release-channel "dev" "the name of the release channel to build"
 498 else
 499     # If we have no git directory then we are probably a tarball distribution
 500     # and should default to stable channel - Issue 28322
 501     probe CFG_GIT          git
 502     msg "git: no git directory. Changing default release channel to stable"
 503     valopt release-channel "stable" "the name of the release channel to build"
 504 fi
 505
 506 # Used on systems where "cc" and "ar" are unavailable
 507 valopt default-linker "cc" "the default linker"
 508 valopt default-ar     "ar" "the default ar"
 509
 510 # Many of these are saved below during the "writing configuration" step
 511 # (others are conditionally saved).
 512 opt_nosave manage-submodules 1 "let the build manage the git submodules"
 513 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
 514 opt_nosave jemalloc 1 "build liballoc with jemalloc"
 515 opt full-bootstrap 0 "build three compilers instead of two"
 516 opt extended 0 "build an extended rust tool set"
 517
 518 valopt_nosave prefix "/usr/local" "set installation prefix"
 519 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
 520 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
 521 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
 522 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
 523 valopt_nosave docdir "${CFG_PREFIX}/share/doc/rust" "install documentation in PATH"
 524 valopt_nosave bindir "${CFG_PREFIX}/bin" "install binaries"
 525
 526 # On Windows this determines root of the subtree for target libraries.
 527 # Host runtime libs always go to 'bin'.
 528 valopt libdir "${CFG_PREFIX}/lib" "install libraries"
 529
 530 case "$CFG_LIBDIR" in
 531     "$CFG_PREFIX"/*) CAT_INC=2;;
 532     "$CFG_PREFIX"*)  CAT_INC=1;;
 533     *)
 534         err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
 535 esac
 536
 537 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
 538
 539 if [ $HELP -eq 1 ]
 540 then
 541     echo
 542     exit 0
 543 fi
 544
 545 # Validate Options
 546 if [ -z "$CFG_DISABLE_OPTION_CHECKING" ]
 547 then
 548     step_msg "validating $CFG_SELF args"
 549     validate_opt
 550 fi
 551
 552 # Validate the release channel, and configure options
 553 case "$CFG_RELEASE_CHANNEL" in
 554     nightly )
 555         msg "overriding settings for $CFG_RELEASE_CHANNEL"
 556         enable_if_not_disabled llvm-assertions
 557         # FIXME(stage0) re-enable this on the next stage0 now that #35566 is
 558         # fixed
 559         case "$CFG_BUILD" in
 560           *-pc-windows-gnu)
 561             ;;
 562           *)
 563             CFG_ENABLE_DEBUGINFO_LINES=1
 564             CFG_ENABLE_DEBUGINFO_ONLY_STD=1
 565             ;;
 566         esac
 567
 568         ;;
 569     beta | stable)
 570         msg "overriding settings for $CFG_RELEASE_CHANNEL"
 571         case "$CFG_BUILD" in
 572           *-pc-windows-gnu)
 573             ;;
 574           *)
 575             CFG_ENABLE_DEBUGINFO_LINES=1
 576             CFG_ENABLE_DEBUGINFO_ONLY_STD=1
 577             ;;
 578         esac
 579         ;;
 580     dev)
 581         ;;
 582     *)
 583         err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
 584         ;;
 585 esac
 586
 587 # Adjust perf and debug options for debug mode
 588 if [ -n "$CFG_ENABLE_DEBUG" ]; then
 589     msg "debug mode enabled, setting performance options"
 590     if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
 591         msg "optimization not explicitly enabled, disabling optimization"
 592         CFG_DISABLE_OPTIMIZE=1
 593         CFG_DISABLE_OPTIMIZE_CXX=1
 594     fi
 595
 596     # Set following variables to 1 unless setting already provided
 597     enable_if_not_disabled debug-assertions
 598     enable_if_not_disabled debug-jemalloc
 599     enable_if_not_disabled debuginfo
 600     enable_if_not_disabled llvm-assertions
 601 fi
 602
 603 # OK, now write the debugging options
 604 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
 605 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
 606 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
 607 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
 608 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
 609 if [ -n "$CFG_ENABLE_LLVM_RELEASE_DEBUGINFO" ]; then putvar CFG_ENABLE_LLVM_RELEASE_DEBUGINFO; fi
 610 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
 611 if [ -n "$CFG_ENABLE_DEBUGINFO_LINES" ]; then putvar CFG_ENABLE_DEBUGINFO_LINES; fi
 612 if [ -n "$CFG_ENABLE_DEBUGINFO_ONLY_STD" ]; then putvar CFG_ENABLE_DEBUGINFO_ONLY_STD; fi
 613 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
 614
 615 step_msg "looking for build programs"
 616
 617 probe_need CFG_CURL curl
 618 if [ -z "$CFG_PYTHON_PROVIDED" ]; then
 619     probe_need CFG_PYTHON      python2.7 python2 python
 620 fi
 621
 622 python_version=$($CFG_PYTHON -V 2>&1)
 623 if [ $(echo $python_version | grep -c '^Python 2\.7') -ne 1 ]; then
 624     err "Found $python_version, but Python 2.7 is required"
 625 fi
 626
 627 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
 628 # only disabled if you opt out.
 629 if [ -z "$CFG_VALGRIND" ]
 630 then
 631     # If the user has explicitly asked for valgrind tests, then fail
 632     if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
 633     then
 634         err "No valgrind present, but valgrind tests explicitly requested"
 635     else
 636         CFG_DISABLE_VALGRIND_RPASS=1
 637         putvar CFG_DISABLE_VALGRIND_RPASS
 638     fi
 639 fi
 640
 641 # Do some sanity checks if running on buildbot
 642 # (these env vars are set by rust-buildbot)
 643 if [ -n "$RUST_DIST_SERVER" -a -n "$ALLOW_NONZERO_RLIMIT_CORE" ]; then
 644    # Frequently the llvm submodule directory is broken by the build
 645    # being killed
 646    llvm_lock="${CFG_SRC_DIR}/.git/modules/src/llvm/index.lock"
 647    if [ -e "$llvm_lock" ]; then
 648        step_msg "removing $llvm_lock"
 649        rm -f "$llvm_lock"
 650    fi
 651 fi
 652
 653 BIN_SUF=
 654 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
 655 then
 656     BIN_SUF=.exe
 657 fi
 658
 659 # --enable-local-rebuild implies --enable-local-rust too
 660 if [ -n "$CFG_ENABLE_LOCAL_REBUILD" ]
 661 then
 662     if [ -z "$CFG_ENABLE_LOCAL_RUST" ]
 663     then
 664         CFG_ENABLE_LOCAL_RUST=1
 665         putvar CFG_ENABLE_LOCAL_RUST
 666     fi
 667 fi
 668
 669 if [ -n "$CFG_ENABLE_LOCAL_RUST" ]
 670 then
 671     system_rustc=$(which rustc)
 672     if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
 673     then
 674         : # everything already configured
 675     elif [ -n "$system_rustc" ]
 676     then
 677         # we assume that rustc is in a /bin directory
 678         CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
 679     else
 680         err "no local rust to use"
 681     fi
 682
 683     CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
 684     LRV=`LD_LIBRARY_PATH=${CFG_LOCAL_RUST_ROOT}/lib $CMD --version`
 685     if [ $? -ne 0 ]
 686     then
 687         step_msg "failure while running $CMD --version"
 688         exit 1
 689     fi
 690     step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
 691     putvar CFG_LOCAL_RUST_ROOT
 692 fi
 693
 694 # Same with jemalloc.  save the setting here.
 695 if [ -n "$CFG_DISABLE_JEMALLOC" ]
 696 then
 697     putvar CFG_DISABLE_JEMALLOC
 698 fi
 699
 700 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
 701 # point in the script; after this point, script logic should inspect
 702 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
 703
 704 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS,LDFLAGS}
 705 envopt CC
 706 envopt CXX
 707 envopt CPP
 708 envopt CFLAGS
 709 envopt CXXFLAGS
 710 envopt LDFLAGS
 711
 712 # a little post-processing of various config values
 713 CFG_PREFIX=${CFG_PREFIX%/}
 714 CFG_MANDIR=${CFG_MANDIR%/}
 715 CFG_DOCDIR=${CFG_DOCDIR%/}
 716 CFG_BINDIR=${CFG_BINDIR%/}
 717 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
 718 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
 719
 720 # copy build-triples to host-triples so that builds are a subset of hosts
 721 V_TEMP=""
 722 for i in $CFG_BUILD $CFG_HOST;
 723 do
 724    echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
 725 done
 726 CFG_HOST=$V_TEMP
 727
 728 # copy host-triples to target-triples so that hosts are a subset of targets
 729 V_TEMP=""
 730 for i in $CFG_HOST $CFG_TARGET;
 731 do
 732    echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
 733 done
 734 CFG_TARGET=$V_TEMP
 735
 736 step_msg "writing configuration"
 737
 738 putvar CFG_SRC_DIR
 739 putvar CFG_SRC_DIR_RELATIVE
 740 putvar CFG_BUILD_DIR
 741 putvar CFG_OSTYPE
 742 putvar CFG_CPUTYPE
 743 putvar CFG_CONFIGURE_ARGS
 744 putvar CFG_PREFIX
 745 putvar CFG_HOST
 746 putvar CFG_TARGET
 747 putvar CFG_LIBDIR_RELATIVE
 748 putvar CFG_DISABLE_MANAGE_SUBMODULES
 749 putvar CFG_AARCH64_LINUX_ANDROID_NDK
 750 putvar CFG_ARM_LINUX_ANDROIDEABI_NDK
 751 putvar CFG_ARMV7_LINUX_ANDROIDEABI_NDK
 752 putvar CFG_I686_LINUX_ANDROID_NDK
 753 putvar CFG_X86_64_LINUX_ANDROID_NDK
 754 putvar CFG_NACL_CROSS_PATH
 755 putvar CFG_MANDIR
 756 putvar CFG_DOCDIR
 757 putvar CFG_BINDIR
 758 putvar CFG_USING_LIBCPP
 759
 760 msg
 761 copy_if_changed ${CFG_SRC_DIR}src/bootstrap/mk/Makefile.in ./Makefile
 762 move_if_changed config.tmp config.mk
 763 rm -f config.tmp
 764 touch config.stamp
 765
 766 if [ -z "$CFG_ENABLE_DEBUG" ]; then
 767     step_msg "configured in release mode. for development consider --enable-debug"
 768 else
 769     step_msg "complete"
 770 fi
 771
 772 if [ "$CFG_SRC_DIR" = `pwd` ]; then
 773     X_PY=x.py
 774 else
 775     X_PY=${CFG_SRC_DIR_RELATIVE}x.py
 776 fi
 777
 778 msg "run \`python ${X_PY} --help\`"
 779 msg