configure

   1 #!/bin/sh
   2
   3 msg() {
   4     echo "configure: $*"
   5 }
   6
   7 step_msg() {
   8     msg
   9     msg "$1"
  10     msg
  11 }
  12
  13 warn() {
  14     echo "configure: WARNING: $1"
  15 }
  16
  17 err() {
  18     echo "configure: error: $1"
  19     exit 1
  20 }
  21
  22 run() {
  23     msg "$@"
  24     "$@"
  25 }
  26
  27 need_ok() {
  28     if [ $? -ne 0 ]
  29     then
  30         err "$1"
  31     fi
  32 }
  33
  34 need_cmd() {
  35     if command -v $1 >/dev/null 2>&1
  36     then msg "found program '$1'"
  37     else err "program '$1' is missing, please install it"
  38     fi
  39 }
  40
  41 make_dir() {
  42     if [ ! -d $1 ]
  43     then
  44         run mkdir -p $1
  45     fi
  46 }
  47
  48 copy_if_changed() {
  49     if cmp -s $1 $2
  50     then
  51         msg "leaving $2 unchanged"
  52     else
  53         run cp -f $1 $2
  54         chmod u-w $2 # make copied artifact read-only
  55     fi
  56 }
  57
  58 move_if_changed() {
  59     if cmp -s $1 $2
  60     then
  61         msg "leaving $2 unchanged"
  62     else
  63         run mv -f $1 $2
  64         chmod u-w $2 # make moved artifact read-only
  65     fi
  66 }
  67
  68 putvar() {
  69     local T
  70     eval T=\$$1
  71     eval TLEN=\${#$1}
  72     if [ $TLEN -gt 35 ]
  73     then
  74         printf "configure: %-20s := %.35s ...\n" $1 "$T"
  75     else
  76         printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
  77     fi
  78     printf "%-20s := %s\n" $1 "$T" >>config.tmp
  79 }
  80
  81 putpathvar() {
  82     local T
  83     eval T=\$$1
  84     eval TLEN=\${#$1}
  85     if [ $TLEN -gt 35 ]
  86     then
  87         printf "configure: %-20s := %.35s ...\n" $1 "$T"
  88     else
  89         printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
  90     fi
  91     if [ -z "$T" ]
  92     then
  93         printf "%-20s := \n" $1 >>config.tmp
  94     else
  95         printf "%-20s := \"%s\"\n" $1 "$T" >>config.tmp
  96     fi
  97 }
  98
  99 probe() {
 100     local V=$1
 101     shift
 102     local P
 103     local T
 104     for P
 105     do
 106         T=$(command -v $P 2>&1)
 107         if [ $? -eq 0 ]
 108         then
 109             VER0=$($P --version 2>/dev/null \
 110                 |  grep -o '[vV]\?[0-9][0-9.][a-z0-9.-]*' | head -1 )
 111             if [ $? -eq 0 -a "x${VER0}" != "x" ]
 112             then
 113               VER="($VER0)"
 114             else
 115               VER=""
 116             fi
 117             break
 118         else
 119             VER=""
 120             T=""
 121         fi
 122     done
 123     eval $V=\$T
 124     putpathvar $V "$VER"
 125 }
 126
 127 probe_need() {
 128     local V=$1
 129     probe $*
 130     eval VV=\$$V
 131     if [ -z "$VV" ]
 132     then
 133         err "needed, but unable to find any of: $*"
 134     fi
 135 }
 136
 137 validate_opt () {
 138     for arg in $CFG_CONFIGURE_ARGS
 139     do
 140         isArgValid=0
 141         for option in $BOOL_OPTIONS
 142         do
 143             if test --disable-$option = $arg
 144             then
 145                 isArgValid=1
 146             fi
 147             if test --enable-$option = $arg
 148             then
 149                 isArgValid=1
 150             fi
 151         done
 152         for option in $VAL_OPTIONS
 153         do
 154             if echo "$arg" | grep -q -- "--$option="
 155             then
 156                 isArgValid=1
 157             fi
 158         done
 159         if [ "$arg" = "--help" ]
 160         then
 161             echo
 162             echo "No more help available for Configure options,"
 163             echo "check the Wiki or join our IRC channel"
 164             break
 165         else
 166             if test $isArgValid -eq 0
 167             then
 168                 err "Option '$arg' is not recognized"
 169             fi
 170         fi
 171     done
 172 }
 173
 174 # `valopt OPTION_NAME DEFAULT DOC` extracts a string-valued option
 175 # from command line, using provided default value for the option if
 176 # not present, and saves it to the generated config.mk.
 177 #
 178 # `valopt_nosave` is much the same, except that it does not save the
 179 # result to config.mk (instead the script should use `putvar` itself
 180 # later on to save it).  `valopt_core` is the core upon which the
 181 # other two are built.
 182
 183 valopt_core() {
 184     VAL_OPTIONS="$VAL_OPTIONS $2"
 185
 186     local SAVE=$1
 187     local OP=$2
 188     local DEFAULT=$3
 189     shift
 190     shift
 191     shift
 192     local DOC="$*"
 193     if [ $HELP -eq 0 ]
 194     then
 195         local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
 196         local V="CFG_${UOP}"
 197         local V_PROVIDED="${V}_PROVIDED"
 198         eval $V="$DEFAULT"
 199         for arg in $CFG_CONFIGURE_ARGS
 200         do
 201             if echo "$arg" | grep -q -- "--$OP="
 202             then
 203                 val=$(echo "$arg" | cut -f2 -d=)
 204                 eval $V=$val
 205                 eval $V_PROVIDED=1
 206             fi
 207         done
 208         if [ "$SAVE" = "save" ]
 209         then
 210             putvar $V
 211         fi
 212     else
 213         if [ -z "$DEFAULT" ]
 214         then
 215             DEFAULT="<none>"
 216         fi
 217         OP="${OP}=[${DEFAULT}]"
 218         printf "    --%-30s %s\n" "$OP" "$DOC"
 219     fi
 220 }
 221
 222 valopt_nosave() {
 223     valopt_core nosave "$@"
 224 }
 225
 226 valopt() {
 227     valopt_core save "$@"
 228 }
 229
 230 # `opt OPTION_NAME DEFAULT DOC` extracts a boolean-valued option from
 231 # command line, using the provided default value (0/1) for the option
 232 # if not present, and saves it to the generated config.mk.
 233 #
 234 # `opt_nosave` is much the same, except that it does not save the
 235 # result to config.mk (instead the script should use `putvar` itself
 236 # later on to save it).  `opt_core` is the core upon which the other
 237 # two are built.
 238
 239 opt_core() {
 240     BOOL_OPTIONS="$BOOL_OPTIONS $2"
 241
 242     local SAVE=$1
 243     local OP=$2
 244     local DEFAULT=$3
 245     shift
 246     shift
 247     shift
 248     local DOC="$*"
 249     local FLAG=""
 250
 251     if [ $DEFAULT -eq 0 ]
 252     then
 253         FLAG="enable"
 254         DEFAULT_FLAG="disable"
 255     else
 256         FLAG="disable"
 257         DEFAULT_FLAG="enable"
 258         DOC="don't $DOC"
 259     fi
 260
 261     if [ $HELP -eq 0 ]
 262     then
 263         for arg in $CFG_CONFIGURE_ARGS
 264         do
 265             if [ "$arg" = "--${FLAG}-${OP}" ]
 266             then
 267                 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
 268                 FLAG=$(echo $FLAG | tr 'a-z' 'A-Z')
 269                 local V="CFG_${FLAG}_${OP}"
 270                 local V_PROVIDED="CFG_${FLAG}_${OP}_PROVIDED"
 271                 eval $V=1
 272                 eval $V_PROVIDED=1
 273                 if [ "$SAVE" = "save" ]
 274                 then
 275                    putvar $V
 276                 fi
 277             elif [ "$arg" = "--${DEFAULT_FLAG}-${OP}" ]
 278             then
 279                 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
 280                 DEFAULT_FLAG=$(echo $DEFAULT_FLAG | tr 'a-z' 'A-Z')
 281                 local V_PROVIDED="CFG_${DEFAULT_FLAG}_${OP}_PROVIDED"
 282                 eval $V_PROVIDED=1
 283             fi
 284         done
 285     else
 286         if [ ! -z "$META" ]
 287         then
 288             OP="$OP=<$META>"
 289         fi
 290         printf "    --%-30s %s\n" "$FLAG-$OP" "$DOC"
 291      fi
 292 }
 293
 294 opt_nosave() {
 295     opt_core nosave "$@"
 296 }
 297
 298 opt() {
 299     opt_core save "$@"
 300 }
 301
 302 envopt() {
 303     local NAME=$1
 304     local V="CFG_${NAME}"
 305     eval VV=\$$V
 306
 307     # If configure didn't set a value already, then check environment.
 308     #
 309     # (It is recommended that the configure script always check the
 310     # environment before setting any values to envopt variables; see
 311     # e.g.  how CFG_CC is handled, where it first checks `-z "$CC"`,
 312     # and issues msg if it ends up employing that provided value.)
 313     if [ -z "$VV" ]
 314     then
 315         eval $V=\$$NAME
 316         eval VV=\$$V
 317     fi
 318
 319     # If script or environment provided a value, save it.
 320     if [ ! -z "$VV" ]
 321     then
 322         putvar $V
 323     fi
 324 }
 325
 326 to_llvm_triple() {
 327     case $1 in
 328         i686-w64-mingw32) echo i686-pc-windows-gnu ;;
 329         x86_64-w64-mingw32) echo x86_64-pc-windows-gnu ;;
 330         *) echo $1 ;;
 331     esac
 332 }
 333
 334 to_gnu_triple() {
 335     case $1 in
 336         i686-pc-windows-gnu) echo i686-w64-mingw32 ;;
 337         x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;;
 338         *) echo $1 ;;
 339     esac
 340 }
 341
 342 # Prints the absolute path of a directory to stdout
 343 abs_path() {
 344     local _path="$1"
 345     # Unset CDPATH because it causes havok: it makes the destination unpredictable
 346     # and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null
 347     # for good measure.
 348     (unset CDPATH && cd "$_path" > /dev/null && pwd)
 349 }
 350
 351 msg "looking for configure programs"
 352 need_cmd cmp
 353 need_cmd mkdir
 354 need_cmd printf
 355 need_cmd cut
 356 need_cmd head
 357 need_cmd grep
 358 need_cmd xargs
 359 need_cmd cp
 360 need_cmd find
 361 need_cmd uname
 362 need_cmd date
 363 need_cmd tr
 364 need_cmd sed
 365 need_cmd file
 366 need_cmd make
 367
 368 msg "inspecting environment"
 369
 370 CFG_OSTYPE=$(uname -s)
 371 CFG_CPUTYPE=$(uname -m)
 372
 373 if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ]
 374 then
 375     # Darwin's `uname -s` lies and always returns i386. We have to use sysctl
 376     # instead.
 377     if sysctl hw.optional.x86_64 | grep -q ': 1'
 378     then
 379         CFG_CPUTYPE=x86_64
 380     fi
 381 fi
 382
 383 # The goal here is to come up with the same triple as LLVM would,
 384 # at least for the subset of platforms we're willing to target.
 385
 386 case $CFG_OSTYPE in
 387
 388     Linux)
 389         CFG_OSTYPE=unknown-linux-gnu
 390         ;;
 391
 392     FreeBSD)
 393         CFG_OSTYPE=unknown-freebsd
 394         ;;
 395
 396     DragonFly)
 397         CFG_OSTYPE=unknown-dragonfly
 398         ;;
 399
 400     Bitrig)
 401         CFG_OSTYPE=unknown-bitrig
 402         ;;
 403
 404     OpenBSD)
 405         CFG_OSTYPE=unknown-openbsd
 406        ;;
 407
 408     Darwin)
 409         CFG_OSTYPE=apple-darwin
 410         ;;
 411
 412     MINGW*)
 413         # msys' `uname` does not print gcc configuration, but prints msys
 414         # configuration. so we cannot believe `uname -m`:
 415         # msys1 is always i686 and msys2 is always x86_64.
 416         # instead, msys defines $MSYSTEM which is MINGW32 on i686 and
 417         # MINGW64 on x86_64.
 418         CFG_CPUTYPE=i686
 419         CFG_OSTYPE=pc-windows-gnu
 420         if [ "$MSYSTEM" = MINGW64 ]
 421         then
 422             CFG_CPUTYPE=x86_64
 423         fi
 424         ;;
 425
 426     MSYS*)
 427         CFG_OSTYPE=pc-windows-gnu
 428         ;;
 429
 430 # Thad's Cygwin identifiers below
 431
 432 #   Vista 32 bit
 433     CYGWIN_NT-6.0)
 434         CFG_OSTYPE=pc-windows-gnu
 435         CFG_CPUTYPE=i686
 436         ;;
 437
 438 #   Vista 64 bit
 439     CYGWIN_NT-6.0-WOW64)
 440         CFG_OSTYPE=pc-windows-gnu
 441         CFG_CPUTYPE=x86_64
 442         ;;
 443
 444 #   Win 7 32 bit
 445     CYGWIN_NT-6.1)
 446         CFG_OSTYPE=pc-windows-gnu
 447         CFG_CPUTYPE=i686
 448         ;;
 449
 450 #   Win 7 64 bit
 451     CYGWIN_NT-6.1-WOW64)
 452         CFG_OSTYPE=pc-windows-gnu
 453         CFG_CPUTYPE=x86_64
 454         ;;
 455
 456 #   Win 8 # uname -s on 64-bit cygwin does not contain WOW64, so simply use uname -m to detect arch (works in my install)
 457     CYGWIN_NT-6.3)
 458         CFG_OSTYPE=pc-windows-gnu
 459         ;;
 460 # We do not detect other OS such as XP/2003 using 64 bit using uname.
 461 # If we want to in the future, we will need to use Cygwin - Chuck's csih helper in /usr/lib/csih/winProductName.exe or alternative.
 462     *)
 463         err "unknown OS type: $CFG_OSTYPE"
 464         ;;
 465 esac
 466
 467
 468 case $CFG_CPUTYPE in
 469
 470     i386 | i486 | i686 | i786 | x86)
 471         CFG_CPUTYPE=i686
 472         ;;
 473
 474     xscale | arm)
 475         CFG_CPUTYPE=arm
 476         ;;
 477
 478     armv7l)
 479         CFG_CPUTYPE=arm
 480         CFG_OSTYPE="${CFG_OSTYPE}eabihf"
 481         ;;
 482
 483     aarch64)
 484         CFG_CPUTYPE=aarch64
 485         ;;
 486
 487     # At some point, when ppc64[le] support happens, this will need to do
 488     # something clever. For now it's safe to assume that we're only ever
 489     # interested in building 32 bit.
 490     powerpc | ppc | ppc64)
 491         CFG_CPUTYPE=powerpc
 492         ;;
 493
 494     x86_64 | x86-64 | x64 | amd64)
 495         CFG_CPUTYPE=x86_64
 496         ;;
 497
 498     *)
 499         err "unknown CPU type: $CFG_CPUTYPE"
 500 esac
 501
 502 # Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation
 503 if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ]
 504 then
 505     # $SHELL does not exist in standard 'sh', so probably only exists
 506     # if configure is running in an interactive bash shell. /usr/bin/env
 507     # exists *everywhere*.
 508     BIN_TO_PROBE="$SHELL"
 509     if [ -z "$BIN_TO_PROBE" -a -e "/usr/bin/env" ]; then
 510        BIN_TO_PROBE="/usr/bin/env"
 511     fi
 512     if [ -n "$BIN_TO_PROBE" ]; then
 513        file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
 514        if [ $? != 0 ]; then
 515             CFG_CPUTYPE=i686
 516        fi
 517      fi
 518 fi
 519
 520
 521 DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
 522
 523 CFG_SRC_DIR="$(abs_path $(dirname $0))/"
 524 CFG_SRC_DIR_RELATIVE="$(dirname $0)/"
 525 CFG_BUILD_DIR="$(pwd)/"
 526 CFG_SELF="$0"
 527 CFG_CONFIGURE_ARGS="$@"
 528
 529 OPTIONS=""
 530 HELP=0
 531 if [ "$1" = "--help" ]
 532 then
 533     HELP=1
 534     shift
 535     echo
 536     echo "Usage: $CFG_SELF [options]"
 537     echo
 538     echo "Options:"
 539     echo
 540 else
 541     msg "recreating config.tmp"
 542     echo '' >config.tmp
 543
 544     step_msg "processing $CFG_SELF args"
 545 fi
 546
 547 BOOL_OPTIONS=""
 548 VAL_OPTIONS=""
 549
 550 opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
 551 opt valgrind 0 "run tests with valgrind (memcheck by default)"
 552 opt helgrind 0 "run tests with helgrind instead of memcheck"
 553 opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
 554 opt docs     1 "build standard library documentation"
 555 opt compiler-docs     0 "build compiler documentation"
 556 opt optimize-tests 1 "build tests with optimizations"
 557 opt debuginfo-tests 0 "build tests with debugger metadata"
 558 opt libcpp 1 "build with llvm with libc++ instead of libstdc++ when using clang"
 559 opt llvm-assertions 0 "build LLVM with assertions"
 560 opt debug-assertions 0 "build with debugging assertions"
 561 opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
 562 opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
 563 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
 564 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
 565 opt rpath 0 "build rpaths into rustc itself"
 566 # This is used by the automation to produce single-target nightlies
 567 opt dist-host-only 0 "only install bins for the host architecture"
 568 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
 569 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
 570
 571 # Optimization and debugging options. These may be overridden by the release channel, etc.
 572 opt_nosave optimize 1 "build optimized rust code"
 573 opt_nosave optimize-cxx 1 "build optimized C++ code"
 574 opt_nosave optimize-llvm 1 "build optimized LLVM"
 575 opt_nosave llvm-assertions 0 "build LLVM with assertions"
 576 opt_nosave debug-assertions 0 "build with debugging assertions"
 577 opt_nosave debuginfo 0 "build with debugger metadata"
 578 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
 579
 580 valopt localstatedir "/var/lib" "local state directory"
 581 valopt sysconfdir "/etc" "install system configuration files"
 582
 583 valopt datadir "${CFG_PREFIX}/share" "install data"
 584 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
 585 valopt llvm-root "" "set LLVM root"
 586 valopt python "" "set path to python"
 587 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
 588 valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
 589 valopt android-cross-path "/opt/ndk_standalone" "Android NDK standalone path"
 590 valopt release-channel "dev" "the name of the release channel to build"
 591 valopt musl-root "/usr/local" "MUSL root installation directory"
 592
 593 # Many of these are saved below during the "writing configuration" step
 594 # (others are conditionally saved).
 595 opt_nosave manage-submodules 1 "let the build manage the git submodules"
 596 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
 597 opt_nosave jemalloc 1 "build liballoc with jemalloc"
 598 opt elf-tls 1 "elf thread local storage on platforms where supported"
 599
 600 valopt_nosave prefix "/usr/local" "set installation prefix"
 601 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
 602 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
 603 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
 604 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
 605
 606 # Temporarily support old triples until buildbots get updated
 607 CFG_BUILD=$(to_llvm_triple $CFG_BUILD)
 608 putvar CFG_BUILD # Yes, this creates a duplicate entry, but the last one wins.
 609 CFG_HOST=$(to_llvm_triple $CFG_HOST)
 610 CFG_TARGET=$(to_llvm_triple $CFG_TARGET)
 611
 612 # On windows we just store the libraries in the bin directory because
 613 # there's no rpath. This is where the build system itself puts libraries;
 614 # --libdir is used to configure the installation directory.
 615 # FIXME: This needs to parameterized over target triples. Do it in platform.mk
 616 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
 617 then
 618     CFG_LIBDIR_RELATIVE=bin
 619 else
 620     CFG_LIBDIR_RELATIVE=lib
 621 fi
 622
 623 valopt libdir "${CFG_PREFIX}/${CFG_LIBDIR_RELATIVE}" "install libraries (do not set it on windows platform)"
 624
 625 case "$CFG_LIBDIR" in
 626     "$CFG_PREFIX"/*) CAT_INC=2;;
 627     "$CFG_PREFIX"*)  CAT_INC=1;;
 628     *)
 629         err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
 630 esac
 631
 632 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
 633
 634 if ( [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ] ) \
 635         && [ "$CFG_LIBDIR_RELATIVE" != "bin" ]; then
 636     err "libdir on windows should be set to 'bin'"
 637 fi
 638
 639 if [ $HELP -eq 1 ]
 640 then
 641     echo
 642     exit 0
 643 fi
 644
 645 # Validate Options
 646 step_msg "validating $CFG_SELF args"
 647 validate_opt
 648
 649 # Validate the release channel, and configure options
 650 case "$CFG_RELEASE_CHANNEL" in
 651     nightly )
 652         msg "overriding settings for $CFG_RELEASE_CHANNEL"
 653         CFG_ENABLE_LLVM_ASSERTIONS=1
 654         ;;
 655     dev | beta | stable)
 656         ;;
 657     *)
 658         err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
 659         ;;
 660 esac
 661
 662 # Adjust perf and debug options for debug mode
 663 if [ -n "$CFG_ENABLE_DEBUG" ]; then
 664     msg "debug mode enabled, setting performance options"
 665     if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
 666         msg "optimization not explicitly enabled, disabling optimization"
 667         CFG_DISABLE_OPTIMIZE=1
 668         CFG_DISABLE_OPTIMIZE_CXX=1
 669     fi
 670     CFG_ENABLE_DEBUG_ASSERTIONS=1
 671     CFG_ENABLE_DEBUG_JEMALLOC=1
 672     CFG_ENABLE_DEBUGINFO=1
 673     CFG_ENABLE_LLVM_ASSERTIONS=1
 674 fi
 675
 676 # OK, now write the debugging options
 677 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
 678 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
 679 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
 680 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
 681 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
 682 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
 683 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
 684
 685 # A magic value that allows the compiler to use unstable features
 686 # during the bootstrap even when doing so would normally be an error
 687 # because of feature staging or because the build turns on
 688 # warnings-as-errors and unstable features default to warnings.  The
 689 # build has to match this key in an env var. Meant to be a mild
 690 # deterrent from users just turning on unstable features on the stable
 691 # channel.
 692 # Basing CFG_BOOTSTRAP_KEY on CFG_BOOTSTRAP_KEY lets it get picked up
 693 # during a Makefile reconfig.
 694 CFG_BOOTSTRAP_KEY="${CFG_BOOTSTRAP_KEY-`date +%H:%M:%S`}"
 695 putvar CFG_BOOTSTRAP_KEY
 696
 697 step_msg "looking for build programs"
 698
 699 probe_need CFG_CURLORWGET  curl wget
 700 if [ -z "$CFG_PYTHON_PROVIDED" ]; then
 701     probe_need CFG_PYTHON      python2.7 python2.6 python2 python
 702 fi
 703
 704 python_version=$($CFG_PYTHON -V 2>&1)
 705 if [ $(echo $python_version | grep -c '^Python 2\.[4567]') -ne 1 ]; then
 706     err "Found $python_version, but LLVM requires Python 2.4-2.7"
 707 fi
 708
 709 # If we have no git directory then we are probably a tarball distribution
 710 # and shouldn't attempt to load submodules
 711 if [ ! -e ${CFG_SRC_DIR}.git ]
 712 then
 713     probe CFG_GIT          git
 714     msg "git: no git directory. disabling submodules"
 715     CFG_DISABLE_MANAGE_SUBMODULES=1
 716 else
 717     probe_need CFG_GIT     git
 718 fi
 719
 720 # Use `md5sum` on GNU platforms, or `md5 -q` on BSD
 721 probe CFG_MD5              md5
 722 probe CFG_MD5SUM           md5sum
 723 if [ -n "$CFG_MD5" ]
 724 then
 725     CFG_HASH_COMMAND="$CFG_MD5 -q | cut -c 1-8"
 726 elif [ -n "$CFG_MD5SUM" ]
 727 then
 728     CFG_HASH_COMMAND="$CFG_MD5SUM | cut -c 1-8"
 729 else
 730     err 'could not find one of: md5 md5sum'
 731 fi
 732 putvar CFG_HASH_COMMAND
 733
 734 probe CFG_CLANG            clang++
 735 probe CFG_CCACHE           ccache
 736 probe CFG_GCC              gcc
 737 probe CFG_LD               ld
 738 probe CFG_VALGRIND         valgrind
 739 probe CFG_PERF             perf
 740 probe CFG_ISCC             iscc
 741 probe CFG_ANTLR4           antlr4
 742 probe CFG_GRUN             grun
 743 probe CFG_FLEX             flex
 744 probe CFG_BISON            bison
 745 probe CFG_PANDOC           pandoc
 746 probe CFG_XELATEX          xelatex
 747 probe CFG_GDB              gdb
 748 probe CFG_LLDB             lldb
 749
 750 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
 751 # installed. Since `javac` is only used if `antlr4` is available,
 752 # probe for it only in this case.
 753 if [ ! -z "$CFG_ANTLR4" ]
 754 then
 755    probe CFG_JAVAC            javac
 756 fi
 757
 758 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
 759 # only disabled if you opt out.
 760 if [ -z "$CFG_VALGRIND" ]
 761 then
 762     # If the user has explicitly asked for valgrind tests, then fail
 763     if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
 764     then
 765         err "No valgrind present, but valgrind tests explicitly requested"
 766     else
 767         CFG_DISABLE_VALGRIND_RPASS=1
 768         putvar CFG_DISABLE_VALGRIND_RPASS
 769     fi
 770 fi
 771
 772 if [ ! -z "$CFG_GDB" ]
 773 then
 774     # Store GDB's version
 775     CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
 776     putvar CFG_GDB_VERSION
 777 fi
 778
 779 if [ ! -z "$CFG_LLDB" ]
 780 then
 781     # Store LLDB's version
 782     CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
 783     putvar CFG_LLDB_VERSION
 784
 785     # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
 786     # LLDB via the -P commandline options.
 787     if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
 788     then
 789         CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
 790
 791         # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
 792         if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
 793         then
 794             CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
 795         fi
 796
 797         putvar CFG_LLDB_PYTHON_DIR
 798     fi
 799 fi
 800
 801 step_msg "looking for target specific programs"
 802
 803 probe CFG_ADB        adb
 804
 805 if [ ! -z "$CFG_PANDOC" ]
 806 then
 807     # Extract "MAJOR MINOR" from Pandoc's version number
 808     PV_MAJOR_MINOR=$(pandoc --version | grep '^pandoc' |
 809         sed -E 's/pandoc(.exe)? ([0-9]+)\.([0-9]+).*/\2 \3/')
 810
 811     MIN_PV_MAJOR="1"
 812     MIN_PV_MINOR="9"
 813
 814     # these patterns are shell globs, *not* regexps
 815     PV_MAJOR=${PV_MAJOR_MINOR% *}
 816     PV_MINOR=${PV_MAJOR_MINOR#* }
 817
 818     if [ "$PV_MAJOR" -lt "$MIN_PV_MAJOR" ] || [ "$PV_MINOR" -lt "$MIN_PV_MINOR" ]
 819     then
 820         step_msg "pandoc $PV_MAJOR.$PV_MINOR is too old. Need at least $MIN_PV_MAJOR.$MIN_PV_MINOR. Disabling"
 821         BAD_PANDOC=1
 822     fi
 823 fi
 824
 825 BIN_SUF=
 826 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
 827 then
 828     BIN_SUF=.exe
 829 fi
 830
 831 if [ ! -z "$CFG_ENABLE_LOCAL_RUST" ]
 832 then
 833     system_rustc=$(which rustc)
 834     if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
 835     then
 836         : # everything already configured
 837     elif [ -n "$system_rustc" ]
 838     then
 839         # we assume that rustc is in a /bin directory
 840         CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
 841     else
 842         err "no local rust to use"
 843     fi
 844
 845     CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
 846     LRV=`$CMD --version`
 847     if [ $? -ne 0 ]
 848     then
 849         step_msg "failure while running $CMD --version"
 850         exit 1
 851     fi
 852     step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
 853     putvar CFG_LOCAL_RUST_ROOT
 854 fi
 855
 856 # Force bitrig to build with clang; gcc doesn't like us there
 857 if [ $CFG_OSTYPE = unknown-bitrig ]
 858 then
 859     step_msg "on Bitrig, forcing use of clang, disabling jemalloc"
 860     CFG_ENABLE_CLANG=1
 861     CFG_DISABLE_JEMALLOC=1
 862 fi
 863
 864 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
 865 # system, so if we find that gcc is clang, we should just use clang directly.
 866 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
 867 then
 868     CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
 869     if [ $? -eq 0 ]
 870     then
 871         step_msg "on OS X >=10.9, forcing use of clang"
 872         CFG_ENABLE_CLANG=1
 873     else
 874         if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
 875             step_msg "older GCC found, using clang instead"
 876             CFG_ENABLE_CLANG=1
 877         else
 878             # on OS X, with xcode 5 and newer, certain developers may have
 879             # cc, gcc and g++ point to a  mixture of clang and gcc
 880             # if so, this will create very strange build errors
 881             # this last stanza is to detect some such problems and save the future rust
 882             # contributor some time solving that issue.
 883             # this detection could be generalized to other OSes aside from OS X
 884             # but the issue seems most likely to happen on OS X
 885
 886             chk_cc () {
 887                 $1 --version 2> /dev/null | grep -q $2
 888             }
 889             # check that gcc, cc and g++ all point to the same compiler.
 890             # note that for xcode 5, g++ points to clang, not clang++
 891             if !((chk_cc gcc clang  && chk_cc g++ clang) ||
 892                 (chk_cc gcc gcc  &&( chk_cc g++ g++ || chk g++ gcc))); then
 893                 err "the gcc and g++ in your path point to different compilers.
 894     Check which versions are in your path with gcc --version and g++ --version.
 895     To resolve this problem, either fix your PATH  or run configure with --enable-clang"
 896             fi
 897
 898         fi
 899     fi
 900 fi
 901
 902 # Okay, at this point, we have made up our minds about whether we are
 903 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
 904 if [ ! -z "$CFG_ENABLE_CLANG" ]
 905 then
 906     putvar CFG_ENABLE_CLANG
 907 fi
 908
 909 # Same with jemalloc.  save the setting here.
 910 if [ ! -z "$CFG_DISABLE_JEMALLOC" ]
 911 then
 912     putvar CFG_DISABLE_JEMALLOC
 913 fi
 914
 915 if [ ! -z "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
 916 then
 917     step_msg "using custom LLVM at $CFG_LLVM_ROOT"
 918
 919     LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
 920     LLVM_VERSION=$($LLVM_CONFIG --version)
 921
 922     case $LLVM_VERSION in
 923         (3.[5-6]*)
 924             msg "found ok version of LLVM: $LLVM_VERSION"
 925             ;;
 926         (*)
 927             err "bad LLVM version: $LLVM_VERSION, need >=3.5"
 928             ;;
 929     esac
 930 fi
 931
 932 # Even when the user overrides the choice of CC, still try to detect
 933 # clang to disable some clang-specific warnings.  We here draw a
 934 # distinction between:
 935 #
 936 #  CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
 937 #  CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
 938 #
 939 # This distinction is important because there are some safeguards we
 940 # would prefer to skip when merely CFG_USING_CLANG is set; but when
 941 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
 942 # running such safeguards.
 943
 944 if [ ! -z "$CC" ]
 945 then
 946     msg "skipping compiler inference steps; using provided CC=$CC"
 947     CFG_CC="$CC"
 948
 949     CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
 950     if [ $? -eq 0 ]
 951     then
 952         step_msg "note, user-provided CC looks like clang; CC=$CC."
 953         CFG_USING_CLANG=1
 954         putvar CFG_USING_CLANG
 955     fi
 956 else
 957     if [ ! -z "$CFG_ENABLE_CLANG" ]
 958     then
 959         if [ -z "$CFG_CLANG" ]
 960         then
 961             err "clang requested but not found"
 962         fi
 963         CFG_CC="$CFG_CLANG"
 964         CFG_USING_CLANG=1
 965         putvar CFG_USING_CLANG
 966     else
 967         CFG_CC="gcc"
 968     fi
 969 fi
 970
 971 if [ ! -z "$CFG_ENABLE_CLANG" ]
 972 then
 973     case "$CC" in
 974         (''|*clang)
 975         CFG_CLANG_REPORTED_VERSION=$($CFG_CC --version | grep version)
 976
 977         if [[ $CFG_CLANG_REPORTED_VERSION == *"(based on LLVM "* ]]
 978         then
 979             CFG_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*(based on LLVM \(.*\))/\1/')
 980         elif [[ $CFG_CLANG_REPORTED_VERSION == "Apple LLVM"* ]]
 981         then
 982             CFG_OSX_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*version \(.*\) .*/\1/')
 983         else
 984             CFG_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*version \(.*\) .*/\1/')
 985         fi
 986
 987         if [ ! -z "$CFG_OSX_CLANG_VERSION" ]
 988         then
 989             case $CFG_OSX_CLANG_VERSION in
 990                 (7.0*)
 991                 step_msg "found ok version of APPLE CLANG: $CFG_OSX_CLANG_VERSION"
 992                 ;;
 993                 (*)
 994                 err "bad APPLE CLANG version: $CFG_OSX_CLANG_VERSION, need >=7.0"
 995                 ;;
 996             esac
 997         else
 998             case $CFG_CLANG_VERSION in
 999                 (3.2* | 3.3* | 3.4* | 3.5* | 3.6* | 3.7*)
1000                 step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
1001                 ;;
1002                 (*)
1003                 err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn"
1004                 ;;
1005             esac
1006         fi
1007
1008         if [ -z "$CC" ]
1009         then
1010             CFG_CC="clang"
1011             CFG_CXX="clang++"
1012         fi
1013     esac
1014 fi
1015
1016 if [ ! -z "$CFG_ENABLE_CCACHE" ]
1017 then
1018     if [ -z "$CC" ]
1019     then
1020         if [ -z "$CFG_CCACHE" ]
1021         then
1022             err "ccache requested but not found"
1023         fi
1024
1025         CFG_CC="ccache $CFG_CC"
1026     fi
1027 fi
1028
1029 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1030 then
1031     err "either clang or gcc is required"
1032 fi
1033
1034 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1035 # point in the script; after this point, script logic should inspect
1036 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1037
1038 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS}
1039 envopt CC
1040 envopt CXX
1041 envopt CPP
1042 envopt CFLAGS
1043 envopt CXXFLAGS
1044
1045 # a little post-processing of various config values
1046 CFG_PREFIX=${CFG_PREFIX%/}
1047 CFG_MANDIR=${CFG_MANDIR%/}
1048 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1049 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1050 CFG_SUPPORTED_TARGET=""
1051 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1052   CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1053 done
1054
1055 # copy host-triples to target-triples so that hosts are a subset of targets
1056 V_TEMP=""
1057 for i in $CFG_HOST $CFG_TARGET;
1058 do
1059    echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1060 done
1061 CFG_TARGET=$V_TEMP
1062
1063 # check target-specific tool-chains
1064 for i in $CFG_TARGET
1065 do
1066     L_CHECK=false
1067     for j in $CFG_SUPPORTED_TARGET
1068     do
1069         if [ $i = $j ]
1070         then
1071             L_CHECK=true
1072         fi
1073     done
1074
1075     if [ $L_CHECK = false ]
1076     then
1077         err "unsupported target triples \"$i\" found"
1078     fi
1079
1080     case $i in
1081         arm-linux-androideabi)
1082
1083             if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc ]
1084             then
1085                 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc not found"
1086             fi
1087             if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ ]
1088             then
1089                 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ not found"
1090             fi
1091             if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar ]
1092             then
1093                 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar not found"
1094             fi
1095             ;;
1096
1097         arm-apple-darwin)
1098             if [ $CFG_OSTYPE != apple-darwin ]
1099             then
1100                 err "The iOS target is only supported on Mac OS X"
1101             fi
1102             ;;
1103
1104
1105         *-musl)
1106             if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
1107             then
1108                 err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
1109             fi
1110             ;;
1111
1112         x86_64-*-msvc)
1113             # Currently the build system is not configured to build jemalloc
1114             # with MSVC, so we omit this optional dependency.
1115             step_msg "targeting MSVC, disabling jemalloc"
1116             CFG_DISABLE_JEMALLOC=1
1117             putvar CFG_DISABLE_JEMALLOC
1118
1119             # There are some MSYS python builds which will auto-translate
1120             # windows-style paths to MSYS-style paths in Python itself.
1121             # Unfortunately this breaks LLVM's build system as somewhere along
1122             # the line LLVM prints a path into a file from Python and then CMake
1123             # later tries to interpret that path. If Python prints a MSYS path
1124             # and CMake tries to use it as a Windows path, you're gonna have a
1125             # Bad Time.
1126             #
1127             # Consequently here we try to detect when that happens and print an
1128             # error if it does.
1129             if $CFG_PYTHON -c 'import sys; print sys.argv[1]' `pwd` | grep '^/'
1130             then
1131                 err "python is silently translating windows paths to MSYS paths \
1132                      and the build will fail if this python is used.\n\n \
1133                      Either an official python install must be used or an \
1134                      alternative python package in MinGW must be used."
1135             fi
1136
1137             # MSVC requires cmake because that's how we're going to build LLVM
1138             probe_need CFG_CMAKE cmake
1139
1140             # Use the REG program to figure out where VS is installed
1141             # We need to figure out where cl.exe and link.exe are, so we do some
1142             # munging and some probing here. We also look for the default
1143             # INCLUDE and LIB variables for MSVC so we can set those in the
1144             # build system as well.
1145             install=$(reg QUERY \
1146                        'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0' \
1147                        -v InstallDir)
1148             need_ok "couldn't find visual studio install root"
1149             CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
1150             CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1151             CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1152             CFG_MSVC_CL="${CFG_MSVC_ROOT}/VC/bin/amd64/cl.exe"
1153             CFG_MSVC_LIB="${CFG_MSVC_ROOT}/VC/bin/amd64/lib.exe"
1154             CFG_MSVC_LINK="${CFG_MSVC_ROOT}/VC/bin/amd64/link.exe"
1155
1156             vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
1157             CFG_MSVC_INCLUDE_PATH=$(cmd /c "\"$vcvarsall\" amd64 && cmd /c echo %INCLUDE%")
1158             need_ok "failed to learn about MSVC's INCLUDE"
1159             CFG_MSVC_LIB_PATH=$(cmd /c "\"$vcvarsall\" amd64 && cmd /c echo %LIB%")
1160             need_ok "failed to learn about MSVC's LIB"
1161
1162             putvar CFG_MSVC_ROOT
1163             putvar CFG_MSVC_CL
1164             putvar CFG_MSVC_LIB
1165             putvar CFG_MSVC_LINK
1166             putvar CFG_MSVC_INCLUDE_PATH
1167             putvar CFG_MSVC_LIB_PATH
1168             ;;
1169
1170         *)
1171             ;;
1172     esac
1173 done
1174
1175 if [ ! -z "$CFG_PERF" ]
1176 then
1177     HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1178     if [ -z "$HAVE_PERF_LOGFD" ];
1179     then
1180         CFG_PERF_WITH_LOGFD=1
1181         putvar CFG_PERF_WITH_LOGFD
1182     fi
1183 fi
1184
1185 step_msg "making directories"
1186
1187 for i in \
1188     doc doc/std doc/extra \
1189     dl tmp dist
1190 do
1191     make_dir $i
1192 done
1193
1194 for t in $CFG_HOST
1195 do
1196     make_dir $t/llvm
1197 done
1198
1199 for t in $CFG_HOST
1200 do
1201     make_dir $t/rustllvm
1202 done
1203
1204 for t in $CFG_TARGET
1205 do
1206   make_dir $t/rt
1207   for s in 0 1 2 3
1208   do
1209     make_dir $t/rt/stage$s
1210     make_dir $t/rt/jemalloc
1211     make_dir $t/rt/compiler-rt
1212     for i in                                          \
1213       isaac sync test \
1214       arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1215     do
1216       make_dir $t/rt/stage$s/$i
1217     done
1218   done
1219 done
1220
1221 for h in $CFG_HOST
1222 do
1223     for t in $CFG_TARGET
1224     do
1225         # host lib dir stage0
1226         make_dir $h/stage0/lib
1227
1228         # target bin dir stage0
1229         make_dir $h/stage0/lib/rustlib/$t/bin
1230
1231         # target lib dir stage0
1232         make_dir $h/stage0/lib/rustlib/$t/lib
1233
1234         for i in 0 1 2 3
1235         do
1236             # host bin dir
1237             make_dir $h/stage$i/bin
1238
1239             # host lib dir
1240             make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1241
1242             # host test dir
1243             make_dir $h/stage$i/test
1244
1245             # target bin dir
1246             make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1247
1248             # target lib dir
1249             make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1250         done
1251     done
1252
1253     make_dir $h/test/run-pass
1254     make_dir $h/test/run-pass-valgrind
1255     make_dir $h/test/run-pass-fulldeps
1256     make_dir $h/test/run-fail
1257     make_dir $h/test/run-fail-fulldeps
1258     make_dir $h/test/compile-fail
1259     make_dir $h/test/parse-fail
1260     make_dir $h/test/compile-fail-fulldeps
1261     make_dir $h/test/bench
1262     make_dir $h/test/perf
1263     make_dir $h/test/pretty
1264     make_dir $h/test/debuginfo-gdb
1265     make_dir $h/test/debuginfo-lldb
1266     make_dir $h/test/codegen
1267     make_dir $h/test/rustdoc
1268 done
1269
1270 # Configure submodules
1271 step_msg "configuring submodules"
1272
1273 # Have to be in the top of src directory for this
1274 if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ]
1275 then
1276     cd ${CFG_SRC_DIR}
1277
1278     msg "git: submodule sync"
1279     "${CFG_GIT}" submodule sync
1280
1281     msg "git: submodule init"
1282     "${CFG_GIT}" submodule init
1283
1284     # Disable submodules that we're not using
1285     if [ ! -z "${CFG_LLVM_ROOT}" ]; then
1286         msg "git: submodule deinit src/llvm"
1287         "${CFG_GIT}" submodule deinit src/llvm
1288     fi
1289     if [ ! -z "${CFG_JEMALLOC_ROOT}" ]; then
1290         msg "git: submodule deinit src/jemalloc"
1291         "${CFG_GIT}" submodule deinit src/jemalloc
1292     fi
1293
1294     msg "git: submodule update"
1295     "${CFG_GIT}" submodule update
1296     need_ok "git failed"
1297
1298     msg "git: submodule foreach sync"
1299     "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1300     need_ok "git failed"
1301
1302     msg "git: submodule foreach update"
1303     "${CFG_GIT}" submodule update --recursive
1304     need_ok "git failed"
1305
1306     # NB: this is just for the sake of getting the submodule SHA1 values
1307     # and status written into the build log.
1308     msg "git: submodule status"
1309     "${CFG_GIT}" submodule status --recursive
1310
1311     msg "git: submodule clobber"
1312     "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1313     need_ok "git failed"
1314     "${CFG_GIT}" submodule foreach --recursive git checkout .
1315     need_ok "git failed"
1316
1317     cd ${CFG_BUILD_DIR}
1318 fi
1319
1320 # Configure llvm, only if necessary
1321 step_msg "looking at LLVM"
1322 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1323 for t in $CFG_HOST
1324 do
1325     do_reconfigure=1
1326     is_msvc=0
1327     case "$t" in
1328         (*-msvc)
1329         is_msvc=1
1330         ;;
1331     esac
1332
1333     if [ -z $CFG_LLVM_ROOT ]
1334     then
1335         LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1336         if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1337         then
1338             LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized"
1339             # Just use LLVM straight from its build directory to
1340             # avoid 'make install' time
1341             LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1342         else
1343             LLVM_DBG_OPTS="--enable-optimized"
1344             LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1345         fi
1346         if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1347         then
1348             LLVM_ASSERTION_OPTS="--disable-assertions"
1349         else
1350             LLVM_ASSERTION_OPTS="--enable-assertions"
1351
1352             # Apparently even if we request assertions be enabled for MSVC,
1353             # LLVM's CMake build system ignore this and outputs in `Release`
1354             # anyway.
1355             if [ ${is_msvc} -eq 0 ]; then
1356                 LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts
1357             fi
1358         fi
1359     else
1360         msg "not reconfiguring LLVM, external LLVM root"
1361         # The user is using their own LLVM
1362         LLVM_BUILD_DIR=
1363         LLVM_INST_DIR=$CFG_LLVM_ROOT
1364         do_reconfigure=0
1365     fi
1366
1367
1368     if [ ${do_reconfigure} -ne 0 ]
1369     then
1370     # because git is hilarious, it might have put the module index
1371     # in a couple places.
1372         index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1373         index2="${CFG_SRC_DIR}src/llvm/.git/index"
1374         for index in ${index1} ${index2}
1375         do
1376             config_status="${LLVM_BUILD_DIR}/config.status"
1377             if test -e ${index} -a \
1378                     -e ${config_status} -a \
1379                     ${config_status} -nt ${index}
1380             then
1381                 msg "not reconfiguring LLVM, config.status is fresh"
1382                 do_reconfigure=0
1383             fi
1384         done
1385     fi
1386
1387     if [ ${do_reconfigure} -ne 0 ] && [ ${is_msvc} -ne 0 ]
1388     then
1389         msg "configuring LLVM for $t with cmake"
1390
1391         CMAKE_ARGS="-DLLVM_INCLUDE_TESTS=OFF"
1392         if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then
1393             CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Debug"
1394         else
1395             CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release"
1396         fi
1397         if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1398         then
1399             CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=OFF"
1400         else
1401             CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=ON"
1402         fi
1403
1404         msg "configuring LLVM with:"
1405         msg "$CMAKE_ARGS"
1406         (cd $LLVM_BUILD_DIR && "$CFG_CMAKE" $CFG_LLVM_SRC_DIR \
1407                                             -G "Visual Studio 12 2013 Win64" \
1408                                             $CMAKE_ARGS)
1409         need_ok "LLVM cmake configure failed"
1410     fi
1411
1412     if [ ${do_reconfigure} -ne 0 ] && [ ${is_msvc} -eq 0 ]
1413     then
1414         # LLVM's configure doesn't recognize the new Windows triples yet
1415         gnu_t=$(to_gnu_triple $t)
1416
1417         msg "configuring LLVM for $gnu_t"
1418
1419         LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
1420         LLVM_BUILD="--build=$gnu_t"
1421         LLVM_HOST="--host=$gnu_t"
1422         LLVM_TARGET="--target=$gnu_t"
1423
1424         # Disable unused LLVM features
1425         LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none"
1426         # Disable term-info, linkage of which comes in multiple forms,
1427         # making our snapshots incompatible (#9334)
1428         LLVM_OPTS="$LLVM_OPTS --disable-terminfo"
1429         # Try to have LLVM pull in as few dependencies as possible (#9397)
1430         LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi"
1431
1432         # Use win32 native thread/lock apis instead of pthread wrapper.
1433         # (llvm's configure tries to find pthread first, so we have to disable it explicitly.)
1434         # Also note that pthreads works badly on mingw-w64 systems: #8996
1435         case "$CFG_BUILD" in
1436             (*-windows-gnu)
1437             LLVM_OPTS="$LLVM_OPTS --disable-pthreads"
1438             ;;
1439         esac
1440
1441         case "$CFG_CC" in
1442             ("ccache clang")
1443             LLVM_CXX_32="ccache clang++ -Qunused-arguments"
1444             LLVM_CC_32="ccache clang -Qunused-arguments"
1445
1446             LLVM_CXX_64="ccache clang++ -Qunused-arguments"
1447             LLVM_CC_64="ccache clang -Qunused-arguments"
1448             ;;
1449             ("clang")
1450             LLVM_CXX_32="clang++ -Qunused-arguments"
1451             LLVM_CC_32="clang -Qunused-arguments"
1452
1453             LLVM_CXX_64="clang++ -Qunused-arguments"
1454             LLVM_CC_64="clang -Qunused-arguments"
1455             ;;
1456             ("ccache gcc")
1457             LLVM_CXX_32="ccache g++"
1458             LLVM_CC_32="ccache gcc"
1459
1460             LLVM_CXX_64="ccache g++"
1461             LLVM_CC_64="ccache gcc"
1462             ;;
1463             ("gcc")
1464             LLVM_CXX_32="g++"
1465             LLVM_CC_32="gcc"
1466
1467             LLVM_CXX_64="g++"
1468             LLVM_CC_64="gcc"
1469             ;;
1470
1471             (*)
1472             msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1473             LLVM_CXX_32="$CXX"
1474             LLVM_CC_32="$CC"
1475
1476             LLVM_CXX_64="$CXX"
1477             LLVM_CC_64="$CC"
1478             ;;
1479         esac
1480
1481         case "$CFG_CPUTYPE" in
1482             (x86*)
1483                 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1484                 LLVM_CC_32="$LLVM_CC_32 -m32"
1485
1486                 LLVM_CFLAGS_32="-m32"
1487                 LLVM_CXXFLAGS_32="-m32"
1488                 LLVM_LDFLAGS_32="-m32"
1489
1490                 LLVM_CFLAGS_64=""
1491                 LLVM_CXXFLAGS_64=""
1492                 LLVM_LDFLAGS_64=""
1493
1494                 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1495                 LLVM_CC_32="$LLVM_CC_32 -m32"
1496                 ;;
1497
1498             (*)
1499                 LLVM_CFLAGS_32=""
1500                 LLVM_CXXFLAGS_32=""
1501                 LLVM_LDFLAGS_32=""
1502
1503                 LLVM_CFLAGS_64=""
1504                 LLVM_CXXFLAGS_64=""
1505                 LLVM_LDFLAGS_64=""
1506                 ;;
1507         esac
1508
1509         if echo $t | grep -q x86_64
1510         then
1511             LLVM_CXX=$LLVM_CXX_64
1512             LLVM_CC=$LLVM_CC_64
1513             LLVM_CFLAGS=$LLVM_CFLAGS_64
1514             LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1515             LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1516         else
1517             LLVM_CXX=$LLVM_CXX_32
1518             LLVM_CC=$LLVM_CC_32
1519             LLVM_CFLAGS=$LLVM_CFLAGS_32
1520             LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1521             LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1522         fi
1523
1524         CXX=$LLVM_CXX
1525         CC=$LLVM_CC
1526         CFLAGS=$LLVM_CFLAGS
1527         CXXFLAGS=$LLVM_CXXFLAGS
1528         LDFLAGS=$LLVM_LDFLAGS
1529
1530         if [ -z "$CFG_DISABLE_LIBCPP" ] && [ -n "$CFG_USING_CLANG" ]; then
1531             LLVM_OPTS="$LLVM_OPTS --enable-libcpp"
1532         fi
1533
1534         LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \
1535                         $LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON"
1536
1537         msg "configuring LLVM with:"
1538         msg "$LLVM_FLAGS"
1539
1540         export CXX
1541         export CC
1542         export CFLAGS
1543         export CXXFLAGS
1544         export LDFLAGS
1545
1546         cd $LLVM_BUILD_DIR
1547         case $CFG_SRC_DIR in
1548             /* | [a-z]:* | [A-Z]:*)
1549                 ${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS
1550                 ;;
1551             *)
1552                 ${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \
1553                     $LLVM_FLAGS
1554                 ;;
1555         esac
1556         need_ok "LLVM configure failed"
1557
1558         cd $CFG_BUILD_DIR
1559     fi
1560
1561     # Construct variables for LLVM build and install directories for
1562     # each target. These will be named
1563     # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1564     # target_triple will be converted to underscore, because bash
1565     # variables can't contain hyphens. The makefile will then have to
1566     # convert back.
1567     CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1568     CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1569     eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1570     eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1571 done
1572
1573
1574 step_msg "writing configuration"
1575
1576 putvar CFG_SRC_DIR
1577 putvar CFG_SRC_DIR_RELATIVE
1578 putvar CFG_BUILD_DIR
1579 putvar CFG_OSTYPE
1580 putvar CFG_CPUTYPE
1581 putvar CFG_CONFIGURE_ARGS
1582 putvar CFG_PREFIX
1583 putvar CFG_HOST
1584 putvar CFG_TARGET
1585 putvar CFG_LIBDIR_RELATIVE
1586 putvar CFG_DISABLE_MANAGE_SUBMODULES
1587 putvar CFG_ANDROID_CROSS_PATH
1588 putvar CFG_MANDIR
1589
1590 # Avoid spurious warnings from clang by feeding it original source on
1591 # ccache-miss rather than preprocessed input.
1592 if [ ! -z "$CFG_ENABLE_CCACHE" ] && [ ! -z "$CFG_USING_CLANG" ]
1593 then
1594     CFG_CCACHE_CPP2=1
1595     putvar CFG_CCACHE_CPP2
1596 fi
1597
1598 if [ ! -z "$CFG_ENABLE_CCACHE" ]
1599 then
1600     CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1601     putvar CFG_CCACHE_BASEDIR
1602 fi
1603
1604
1605 if [ ! -z $BAD_PANDOC ]
1606 then
1607     CFG_PANDOC=
1608     putvar CFG_PANDOC
1609 fi
1610
1611 putvar CFG_LLVM_SRC_DIR
1612
1613 for t in $CFG_HOST
1614 do
1615     CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1616     CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1617     putvar $CFG_LLVM_BUILD_DIR
1618     putvar $CFG_LLVM_INST_DIR
1619 done
1620
1621 msg
1622 copy_if_changed ${CFG_SRC_DIR}Makefile.in ./Makefile
1623 move_if_changed config.tmp config.mk
1624 rm -f config.tmp
1625 touch config.stamp
1626
1627 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1628     step_msg "configured in release mode. for development consider --enable-debug"
1629 else
1630     step_msg "complete"
1631 fi
1632
1633 msg "run \`make help\`"
1634 msg