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 msg "looking for configure programs"
 364 need_cmd cmp
 365 need_cmd mkdir
 366 need_cmd printf
 367 need_cmd cut
 368 need_cmd head
 369 need_cmd grep
 370 need_cmd xargs
 371 need_cmd cp
 372 need_cmd find
 373 need_cmd uname
 374 need_cmd date
 375 need_cmd tr
 376 need_cmd sed
 377 need_cmd file
 378 need_cmd make
 379
 380 msg "inspecting environment"
 381
 382 CFG_OSTYPE=$(uname -s)
 383 CFG_CPUTYPE=$(uname -m)
 384
 385 if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ]
 386 then
 387     # Darwin's `uname -s` lies and always returns i386. We have to use sysctl
 388     # instead.
 389     if sysctl hw.optional.x86_64 | grep -q ': 1'
 390     then
 391         CFG_CPUTYPE=x86_64
 392     fi
 393 fi
 394
 395 # The goal here is to come up with the same triple as LLVM would,
 396 # at least for the subset of platforms we're willing to target.
 397
 398 case $CFG_OSTYPE in
 399
 400     Linux)
 401         CFG_OSTYPE=unknown-linux-gnu
 402         ;;
 403
 404     FreeBSD)
 405         CFG_OSTYPE=unknown-freebsd
 406         ;;
 407
 408     DragonFly)
 409         CFG_OSTYPE=unknown-dragonfly
 410         ;;
 411
 412     Bitrig)
 413         CFG_OSTYPE=unknown-bitrig
 414         ;;
 415
 416     OpenBSD)
 417         CFG_OSTYPE=unknown-openbsd
 418        ;;
 419
 420     NetBSD)
 421             CFG_OSTYPE=unknown-netbsd
 422             ;;
 423
 424     Darwin)
 425         CFG_OSTYPE=apple-darwin
 426         ;;
 427
 428     SunOS)
 429         CFG_OSTYPE=sun-solaris
 430         CFG_CPUTYPE=$(isainfo -n)
 431         ;;
 432
 433     MINGW*)
 434         # msys' `uname` does not print gcc configuration, but prints msys
 435         # configuration. so we cannot believe `uname -m`:
 436         # msys1 is always i686 and msys2 is always x86_64.
 437         # instead, msys defines $MSYSTEM which is MINGW32 on i686 and
 438         # MINGW64 on x86_64.
 439         CFG_CPUTYPE=i686
 440         CFG_OSTYPE=pc-windows-gnu
 441         if [ "$MSYSTEM" = MINGW64 ]
 442         then
 443             CFG_CPUTYPE=x86_64
 444         fi
 445         ;;
 446
 447     MSYS*)
 448         CFG_OSTYPE=pc-windows-gnu
 449         ;;
 450
 451 # Thad's Cygwin identifiers below
 452
 453 #   Vista 32 bit
 454     CYGWIN_NT-6.0)
 455         CFG_OSTYPE=pc-windows-gnu
 456         CFG_CPUTYPE=i686
 457         ;;
 458
 459 #   Vista 64 bit
 460     CYGWIN_NT-6.0-WOW64)
 461         CFG_OSTYPE=pc-windows-gnu
 462         CFG_CPUTYPE=x86_64
 463         ;;
 464
 465 #   Win 7 32 bit
 466     CYGWIN_NT-6.1)
 467         CFG_OSTYPE=pc-windows-gnu
 468         CFG_CPUTYPE=i686
 469         ;;
 470
 471 #   Win 7 64 bit
 472     CYGWIN_NT-6.1-WOW64)
 473         CFG_OSTYPE=pc-windows-gnu
 474         CFG_CPUTYPE=x86_64
 475         ;;
 476
 477 #   Win 8 # uname -s on 64-bit cygwin does not contain WOW64, so simply use uname -m to detect arch (works in my install)
 478     CYGWIN_NT-6.3)
 479         CFG_OSTYPE=pc-windows-gnu
 480         ;;
 481 # We do not detect other OS such as XP/2003 using 64 bit using uname.
 482 # 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.
 483     *)
 484         err "unknown OS type: $CFG_OSTYPE"
 485         ;;
 486 esac
 487
 488
 489 case $CFG_CPUTYPE in
 490
 491     i386 | i486 | i686 | i786 | x86)
 492         CFG_CPUTYPE=i686
 493         ;;
 494
 495     xscale | arm)
 496         CFG_CPUTYPE=arm
 497         ;;
 498
 499     armv7l)
 500         CFG_CPUTYPE=arm
 501         CFG_OSTYPE="${CFG_OSTYPE}eabihf"
 502         ;;
 503
 504     aarch64)
 505         CFG_CPUTYPE=aarch64
 506         ;;
 507
 508     powerpc | ppc)
 509         CFG_CPUTYPE=powerpc
 510         ;;
 511
 512     powerpc64 | ppc64)
 513         CFG_CPUTYPE=powerpc64
 514         ;;
 515
 516     powerpc64le | ppc64le)
 517         CFG_CPUTYPE=powerpc64le
 518         ;;
 519
 520     x86_64 | x86-64 | x64 | amd64)
 521         CFG_CPUTYPE=x86_64
 522         ;;
 523
 524     *)
 525         err "unknown CPU type: $CFG_CPUTYPE"
 526 esac
 527
 528 # Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation
 529 if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ]
 530 then
 531     # $SHELL does not exist in standard 'sh', so probably only exists
 532     # if configure is running in an interactive bash shell. /usr/bin/env
 533     # exists *everywhere*.
 534     BIN_TO_PROBE="$SHELL"
 535     if [ ! -r "$BIN_TO_PROBE" ]; then
 536         if [ -r "/usr/bin/env" ]; then
 537             BIN_TO_PROBE="/usr/bin/env"
 538         else
 539             warn "Cannot check if the userland is i686 or x86_64"
 540         fi
 541     fi
 542     file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
 543     if [ $? != 0 ]; then
 544         msg "i686 userland on x86_64 Linux kernel"
 545         CFG_CPUTYPE=i686
 546     fi
 547 fi
 548
 549
 550 DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
 551
 552 CFG_SRC_DIR="$(abs_path $(dirname $0))/"
 553 CFG_SRC_DIR_RELATIVE="$(dirname $0)/"
 554 CFG_BUILD_DIR="$(pwd)/"
 555 CFG_SELF="$0"
 556 CFG_CONFIGURE_ARGS="$@"
 557
 558
 559 case "${CFG_SRC_DIR}" in
 560     *\ * )
 561         err "The path to the rust source directory contains spaces, which is not supported"
 562         ;;
 563     *)
 564         ;;
 565 esac
 566
 567
 568 OPTIONS=""
 569 HELP=0
 570 if [ "$1" = "--help" ]
 571 then
 572     HELP=1
 573     shift
 574     echo
 575     echo "Usage: $CFG_SELF [options]"
 576     echo
 577     echo "Options:"
 578     echo
 579 else
 580     msg "recreating config.tmp"
 581     echo '' >config.tmp
 582
 583     step_msg "processing $CFG_SELF args"
 584 fi
 585
 586 BOOL_OPTIONS=""
 587 VAL_OPTIONS=""
 588
 589 opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
 590 opt valgrind 0 "run tests with valgrind (memcheck by default)"
 591 opt helgrind 0 "run tests with helgrind instead of memcheck"
 592 opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
 593 opt docs     1 "build standard library documentation"
 594 opt compiler-docs     0 "build compiler documentation"
 595 opt optimize-tests 1 "build tests with optimizations"
 596 opt debuginfo-tests 0 "build tests with debugger metadata"
 597 opt libcpp 1 "build llvm with libc++ instead of libstdc++ when using clang"
 598 opt llvm-assertions 0 "build LLVM with assertions"
 599 opt debug-assertions 0 "build with debugging assertions"
 600 opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
 601 opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
 602 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
 603 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"
 604 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
 605 opt rpath 1 "build rpaths into rustc itself"
 606 opt stage0-landing-pads 1 "enable landing pads during bootstrap with stage0"
 607 # This is used by the automation to produce single-target nightlies
 608 opt dist-host-only 0 "only install bins for the host architecture"
 609 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
 610 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
 611 opt rustbuild 0 "use the rust and cargo based build system"
 612 opt orbit 1 "get MIR where it belongs - everywhere; most importantly, in orbit"
 613 opt codegen-tests 1 "run the src/test/codegen tests"
 614 opt option-checking 1 "complain about unrecognized options in this configure script"
 615 opt ninja 0 "build LLVM using the Ninja generator (for MSVC, requires building in the correct environment)"
 616
 617 # Optimization and debugging options. These may be overridden by the release channel, etc.
 618 opt_nosave optimize 1 "build optimized rust code"
 619 opt_nosave optimize-cxx 1 "build optimized C++ code"
 620 opt_nosave optimize-llvm 1 "build optimized LLVM"
 621 opt_nosave llvm-assertions 0 "build LLVM with assertions"
 622 opt_nosave debug-assertions 0 "build with debugging assertions"
 623 opt_nosave debuginfo 0 "build with debugger metadata"
 624 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
 625
 626 valopt localstatedir "/var/lib" "local state directory"
 627 valopt sysconfdir "/etc" "install system configuration files"
 628
 629 valopt datadir "${CFG_PREFIX}/share" "install data"
 630 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
 631 valopt llvm-root "" "set LLVM root"
 632 valopt python "" "set path to python"
 633 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
 634 valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
 635 valopt android-cross-path "" "Android NDK standalone path (deprecated)"
 636 valopt i686-linux-android-ndk "" "i686-linux-android NDK standalone path"
 637 valopt arm-linux-androideabi-ndk "" "arm-linux-androideabi NDK standalone path"
 638 valopt armv7-linux-androideabi-ndk "" "armv7-linux-androideabi NDK standalone path"
 639 valopt aarch64-linux-android-ndk "" "aarch64-linux-android NDK standalone path"
 640 valopt nacl-cross-path  "" "NaCl SDK path (Pepper Canary is recommended). Must be absolute!"
 641 valopt musl-root "/usr/local" "MUSL root installation directory"
 642 valopt extra-filename "" "Additional data that is hashed and passed to the -C extra-filename flag"
 643
 644 if [ -e ${CFG_SRC_DIR}.git ]
 645 then
 646     valopt release-channel "dev" "the name of the release channel to build"
 647 else
 648     # If we have no git directory then we are probably a tarball distribution
 649     # and should default to stable channel - Issue 28322
 650     probe CFG_GIT          git
 651     msg "git: no git directory. Changing default release channel to stable"
 652     valopt release-channel "stable" "the name of the release channel to build"
 653 fi
 654
 655 # Used on systems where "cc" and "ar" are unavailable
 656 valopt default-linker "cc" "the default linker"
 657 valopt default-ar     "ar" "the default ar"
 658
 659 # Many of these are saved below during the "writing configuration" step
 660 # (others are conditionally saved).
 661 opt_nosave manage-submodules 1 "let the build manage the git submodules"
 662 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
 663 opt_nosave jemalloc 1 "build liballoc with jemalloc"
 664 opt elf-tls 1 "elf thread local storage on platforms where supported"
 665
 666 valopt_nosave prefix "/usr/local" "set installation prefix"
 667 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
 668 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
 669 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
 670 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
 671
 672 # On Windows this determines root of the subtree for target libraries.
 673 # Host runtime libs always go to 'bin'.
 674 valopt libdir "${CFG_PREFIX}/lib" "install libraries"
 675
 676 case "$CFG_LIBDIR" in
 677     "$CFG_PREFIX"/*) CAT_INC=2;;
 678     "$CFG_PREFIX"*)  CAT_INC=1;;
 679     *)
 680         err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
 681 esac
 682
 683 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
 684
 685 if [ $HELP -eq 1 ]
 686 then
 687     echo
 688     exit 0
 689 fi
 690
 691 # Validate Options
 692 if [ -z "$CFG_DISABLE_OPTION_CHECKING" ]
 693 then
 694     step_msg "validating $CFG_SELF args"
 695     validate_opt
 696 fi
 697
 698 # Validate the release channel, and configure options
 699 case "$CFG_RELEASE_CHANNEL" in
 700     nightly )
 701         msg "overriding settings for $CFG_RELEASE_CHANNEL"
 702         CFG_ENABLE_LLVM_ASSERTIONS=1
 703         ;;
 704     dev | beta | stable)
 705         ;;
 706     *)
 707         err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
 708         ;;
 709 esac
 710
 711 # Adjust perf and debug options for debug mode
 712 if [ -n "$CFG_ENABLE_DEBUG" ]; then
 713     msg "debug mode enabled, setting performance options"
 714     if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
 715         msg "optimization not explicitly enabled, disabling optimization"
 716         CFG_DISABLE_OPTIMIZE=1
 717         CFG_DISABLE_OPTIMIZE_CXX=1
 718     fi
 719
 720     # Set following variables to 1 unless setting already provided
 721     enable_if_not_disabled debug-assertions
 722     enable_if_not_disabled debug-jemalloc
 723     enable_if_not_disabled debuginfo
 724     enable_if_not_disabled llvm-assertions
 725 fi
 726
 727 # OK, now write the debugging options
 728 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
 729 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
 730 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
 731 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
 732 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
 733 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
 734 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
 735
 736 if [ -n "$CFG_DISABLE_ORBIT" ]; then putvar CFG_DISABLE_ORBIT; fi
 737
 738 step_msg "looking for build programs"
 739
 740 probe_need CFG_CURL curl
 741 if [ -z "$CFG_PYTHON_PROVIDED" ]; then
 742     probe_need CFG_PYTHON      python2.7 python2 python
 743 fi
 744
 745 python_version=$($CFG_PYTHON -V 2>&1)
 746 if [ $(echo $python_version | grep -c '^Python 2\.7') -ne 1 ]; then
 747     err "Found $python_version, but Python 2.7 is required"
 748 fi
 749
 750 # If we have no git directory then we are probably a tarball distribution
 751 # and shouldn't attempt to load submodules
 752 if [ ! -e ${CFG_SRC_DIR}.git ]
 753 then
 754     probe CFG_GIT          git
 755     msg "git: no git directory. disabling submodules"
 756     CFG_DISABLE_MANAGE_SUBMODULES=1
 757 else
 758     probe_need CFG_GIT     git
 759 fi
 760
 761 # Use `md5sum` on GNU platforms, or `md5 -q` on BSD
 762 probe CFG_MD5              md5
 763 probe CFG_MD5SUM           md5sum
 764 if [ -n "$CFG_MD5" ]
 765 then
 766     CFG_HASH_COMMAND="$CFG_MD5 -q | cut -c 1-8"
 767 elif [ -n "$CFG_MD5SUM" ]
 768 then
 769     CFG_HASH_COMMAND="$CFG_MD5SUM | cut -c 1-8"
 770 else
 771     err 'could not find one of: md5 md5sum'
 772 fi
 773 putvar CFG_HASH_COMMAND
 774
 775 probe CFG_CLANG            clang++
 776 probe CFG_CCACHE           ccache
 777 probe CFG_GCC              gcc
 778 probe CFG_LD               ld
 779 probe CFG_VALGRIND         valgrind
 780 probe CFG_PERF             perf
 781 probe CFG_ISCC             iscc
 782 probe CFG_ANTLR4           antlr4
 783 probe CFG_GRUN             grun
 784 probe CFG_FLEX             flex
 785 probe CFG_BISON            bison
 786 probe CFG_GDB              gdb
 787 probe CFG_LLDB             lldb
 788
 789 if [ -n "$CFG_ENABLE_NINJA" ]
 790 then
 791   probe CFG_NINJA            ninja
 792   if [ -z "$CFG_NINJA" ]
 793   then
 794     # On Debian and Fedora, the `ninja` binary is an IRC bot, so the build tool was
 795     # renamed. Handle this case.
 796     probe CFG_NINJA            ninja-build
 797   fi
 798 fi
 799
 800 # For building LLVM
 801 probe_need CFG_CMAKE cmake
 802
 803 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
 804 # installed. Since `javac` is only used if `antlr4` is available,
 805 # probe for it only in this case.
 806 if [ -n "$CFG_ANTLR4" ]
 807 then
 808    probe CFG_JAVAC            javac
 809 fi
 810
 811 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
 812 # only disabled if you opt out.
 813 if [ -z "$CFG_VALGRIND" ]
 814 then
 815     # If the user has explicitly asked for valgrind tests, then fail
 816     if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
 817     then
 818         err "No valgrind present, but valgrind tests explicitly requested"
 819     else
 820         CFG_DISABLE_VALGRIND_RPASS=1
 821         putvar CFG_DISABLE_VALGRIND_RPASS
 822     fi
 823 fi
 824
 825 if [ -n "$CFG_GDB" ]
 826 then
 827     # Store GDB's version
 828     CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
 829     putvar CFG_GDB_VERSION
 830 fi
 831
 832 if [ -n "$CFG_LLDB" ]
 833 then
 834     # Store LLDB's version
 835     CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
 836     putvar CFG_LLDB_VERSION
 837
 838     # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
 839     # LLDB via the -P commandline options.
 840     if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
 841     then
 842         CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
 843
 844         # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
 845         if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
 846         then
 847             CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
 848         fi
 849
 850         putvar CFG_LLDB_PYTHON_DIR
 851     fi
 852 fi
 853
 854 # LLDB tests on OSX require /usr/bin/python, not something like Homebrew's
 855 # /usr/local/bin/python. We're loading a compiled module for LLDB tests which is
 856 # only compatible with the system.
 857 case $CFG_BUILD in
 858     *-apple-darwin)
 859         CFG_LLDB_PYTHON=/usr/bin/python
 860         ;;
 861     *)
 862         CFG_LLDB_PYTHON=$CFG_PYTHON
 863         ;;
 864 esac
 865 putvar CFG_LLDB_PYTHON
 866
 867 step_msg "looking for target specific programs"
 868
 869 probe CFG_ADB        adb
 870
 871 BIN_SUF=
 872 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
 873 then
 874     BIN_SUF=.exe
 875 fi
 876
 877 # --enable-local-rebuild implies --enable-local-rust too
 878 if [ -n "$CFG_ENABLE_LOCAL_REBUILD" ]
 879 then
 880     if [ -z "$CFG_ENABLE_LOCAL_RUST" ]
 881     then
 882         CFG_ENABLE_LOCAL_RUST=1
 883         putvar CFG_ENABLE_LOCAL_RUST
 884     fi
 885 fi
 886
 887 if [ -n "$CFG_ENABLE_LOCAL_RUST" ]
 888 then
 889     system_rustc=$(which rustc)
 890     if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
 891     then
 892         : # everything already configured
 893     elif [ -n "$system_rustc" ]
 894     then
 895         # we assume that rustc is in a /bin directory
 896         CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
 897     else
 898         err "no local rust to use"
 899     fi
 900
 901     CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
 902     LRV=`$CMD --version`
 903     if [ $? -ne 0 ]
 904     then
 905         step_msg "failure while running $CMD --version"
 906         exit 1
 907     fi
 908     step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
 909     putvar CFG_LOCAL_RUST_ROOT
 910 fi
 911
 912 # Force bitrig to build with clang; gcc doesn't like us there
 913 if [ $CFG_OSTYPE = unknown-bitrig ]
 914 then
 915     step_msg "on Bitrig, forcing use of clang"
 916     CFG_ENABLE_CLANG=1
 917 fi
 918
 919 # default gcc version under OpenBSD maybe too old, try using egcc, which is a
 920 # gcc version from ports
 921 if [ $CFG_OSTYPE = unknown-openbsd ]
 922 then
 923     if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
 924         step_msg "older GCC found, try with egcc instead"
 925
 926         # probe again but using egcc
 927         probe CFG_GCC egcc
 928
 929         # and use egcc/eg++ for CC/CXX too if it was found
 930         # (but user setting has priority)
 931         if [ -n "$CFG_GCC" ]; then
 932             CC="${CC:-egcc}"
 933             CXX="${CXX:-eg++}"
 934         fi
 935     fi
 936 fi
 937
 938 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
 939 # system, so if we find that gcc is clang, we should just use clang directly.
 940 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
 941 then
 942     CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
 943     if [ $? -eq 0 ]
 944     then
 945         step_msg "on OS X >=10.9, forcing use of clang"
 946         CFG_ENABLE_CLANG=1
 947     else
 948         if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
 949             step_msg "older GCC found, using clang instead"
 950             CFG_ENABLE_CLANG=1
 951         else
 952             # on OS X, with xcode 5 and newer, certain developers may have
 953             # cc, gcc and g++ point to a  mixture of clang and gcc
 954             # if so, this will create very strange build errors
 955             # this last stanza is to detect some such problems and save the future rust
 956             # contributor some time solving that issue.
 957             # this detection could be generalized to other OSes aside from OS X
 958             # but the issue seems most likely to happen on OS X
 959
 960             chk_cc () {
 961                 $1 --version 2> /dev/null | grep -q $2
 962             }
 963             # check that gcc, cc and g++ all point to the same compiler.
 964             # note that for xcode 5, g++ points to clang, not clang++
 965             if !((chk_cc gcc clang  && chk_cc g++ clang) ||
 966                 (chk_cc gcc gcc  &&( chk_cc g++ g++ || chk g++ gcc))); then
 967                 err "the gcc and g++ in your path point to different compilers.
 968     Check which versions are in your path with gcc --version and g++ --version.
 969     To resolve this problem, either fix your PATH  or run configure with --enable-clang"
 970             fi
 971
 972         fi
 973     fi
 974 fi
 975
 976 # If the clang isn't already enabled, check for GCC, and if it is missing, turn
 977 # on clang as a backup.
 978 if [ -z "$CFG_ENABLE_CLANG" ]
 979 then
 980   CFG_GCC_VERSION=$("$CFG_GCC" --version 2>&1)
 981   if [ $? -ne 0 ]
 982   then
 983     step_msg "GCC not installed, will try using Clang"
 984     CFG_ENABLE_CLANG=1
 985   fi
 986 fi
 987
 988 # Okay, at this point, we have made up our minds about whether we are
 989 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
 990 if [ -n "$CFG_ENABLE_CLANG" ]
 991 then
 992     putvar CFG_ENABLE_CLANG
 993 fi
 994
 995 if [ -z "$CFG_DISABLE_LIBCPP" -a -n "$CFG_ENABLE_CLANG" ]
 996 then
 997     CFG_USING_LIBCPP="1"
 998 else
 999     CFG_USING_LIBCPP="0"
1000 fi
1001
1002 # Same with jemalloc.  save the setting here.
1003 if [ -n "$CFG_DISABLE_JEMALLOC" ]
1004 then
1005     putvar CFG_DISABLE_JEMALLOC
1006 fi
1007
1008 if [ -n "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
1009 then
1010     step_msg "using custom LLVM at $CFG_LLVM_ROOT"
1011
1012     LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
1013     LLVM_VERSION=$($LLVM_CONFIG --version)
1014
1015     case $LLVM_VERSION in
1016         (3.[7-9]*)
1017             msg "found ok version of LLVM: $LLVM_VERSION"
1018             ;;
1019         (*)
1020             err "bad LLVM version: $LLVM_VERSION, need >=3.7"
1021             ;;
1022     esac
1023
1024     if "$CFG_LLVM_ROOT/bin/llvm-mc" -help | grep -- "-relocation-model"; then
1025         msg "found older llvm-mc"
1026         CFG_LLVM_MC_HAS_RELOCATION_MODEL=1
1027         putvar CFG_LLVM_MC_HAS_RELOCATION_MODEL
1028     fi
1029 fi
1030
1031 # Even when the user overrides the choice of CC, still try to detect
1032 # clang to disable some clang-specific warnings.  We here draw a
1033 # distinction between:
1034 #
1035 #  CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
1036 #  CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
1037 #
1038 # This distinction is important because there are some safeguards we
1039 # would prefer to skip when merely CFG_USING_CLANG is set; but when
1040 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
1041 # running such safeguards.
1042
1043 if [ -n "$CC" ]
1044 then
1045     msg "skipping compiler inference steps; using provided CC=$CC"
1046     CFG_CC="$CC"
1047
1048     CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
1049     if [ $? -eq 0 ]
1050     then
1051         step_msg "note, user-provided CC looks like clang; CC=$CC."
1052         CFG_USING_CLANG=1
1053         putvar CFG_USING_CLANG
1054     fi
1055 else
1056     if [ -n "$CFG_ENABLE_CLANG" ]
1057     then
1058         if [ -z "$CFG_CLANG" ]
1059         then
1060             err "clang requested but not found"
1061         fi
1062         CFG_CC="$CFG_CLANG"
1063         CFG_USING_CLANG=1
1064         putvar CFG_USING_CLANG
1065     else
1066         CFG_CC="gcc"
1067     fi
1068 fi
1069
1070 if [ -n "$CFG_ENABLE_CLANG" ]
1071 then
1072     case "$CC" in
1073         (''|*clang)
1074         if [ -z "$CC" ]
1075         then
1076             CFG_CC="clang"
1077             CFG_CXX="clang++"
1078         fi
1079     esac
1080 fi
1081
1082 if [ -n "$CFG_ENABLE_CCACHE" ]
1083 then
1084     if [ -z "$CFG_CCACHE" ]
1085     then
1086         err "ccache requested but not found"
1087     fi
1088
1089     CFG_CC="ccache $CFG_CC"
1090 fi
1091
1092 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1093 then
1094     err "either clang or gcc is required"
1095 fi
1096
1097 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1098 # point in the script; after this point, script logic should inspect
1099 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1100
1101 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS,LDFLAGS}
1102 envopt CC
1103 envopt CXX
1104 envopt CPP
1105 envopt CFLAGS
1106 envopt CXXFLAGS
1107 envopt LDFLAGS
1108
1109 # stdc++ name in use
1110 # used to manage non-standard name (on OpenBSD for example)
1111 program_transform_name=$($CFG_CC -v 2>&1 | sed -n "s/.*--program-transform-name='\([^']*\)'.*/\1/p")
1112 CFG_STDCPP_NAME=$(echo "stdc++" | sed "${program_transform_name}")
1113 putvar CFG_STDCPP_NAME
1114
1115 # a little post-processing of various config values
1116 CFG_PREFIX=${CFG_PREFIX%/}
1117 CFG_MANDIR=${CFG_MANDIR%/}
1118 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1119 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1120 CFG_SUPPORTED_TARGET=""
1121 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1122   CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1123 done
1124
1125 # copy build-triples to host-triples so that builds are a subset of hosts
1126 V_TEMP=""
1127 for i in $CFG_BUILD $CFG_HOST;
1128 do
1129    echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1130 done
1131 CFG_HOST=$V_TEMP
1132
1133 # copy host-triples to target-triples so that hosts are a subset of targets
1134 V_TEMP=""
1135 for i in $CFG_HOST $CFG_TARGET;
1136 do
1137    echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1138 done
1139 CFG_TARGET=$V_TEMP
1140
1141 # check target-specific tool-chains
1142 for i in $CFG_TARGET
1143 do
1144     L_CHECK=false
1145     for j in $CFG_SUPPORTED_TARGET
1146     do
1147         if [ $i = $j ]
1148         then
1149             L_CHECK=true
1150         fi
1151     done
1152
1153     if [ $L_CHECK = false ]
1154     then
1155         err "unsupported target triples \"$i\" found"
1156     fi
1157
1158     case $i in
1159         *android*)
1160             case $i in
1161                 armv7-linux-androideabi)
1162                     cmd_prefix="arm-linux-androideabi"
1163                     ;;
1164                 *)
1165                     cmd_prefix=$i
1166                     ;;
1167             esac
1168
1169             upper_snake_target=$(echo "$i" | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
1170             eval ndk=\$"CFG_${upper_snake_target}_NDK"
1171             if [ -z "$ndk" ]
1172             then
1173                 ndk=$CFG_ANDROID_CROSS_PATH
1174                 eval "CFG_${upper_snake_target}_NDK"=$CFG_ANDROID_CROSS_PATH
1175                 warn "generic/default Android NDK option is deprecated (use --$i-ndk option instead)"
1176             fi
1177
1178             # Perform a basic sanity check of the NDK
1179             for android_ndk_tool in "$ndk/bin/$cmd_prefix-gcc" "$ndk/bin/$cmd_prefix-g++" "$ndk/bin/$cmd_prefix-ar"
1180             do
1181                 if [ ! -f $android_ndk_tool ]
1182                 then
1183                     err "NDK tool $android_ndk_tool not found (bad or missing --$i-ndk option?)"
1184                 fi
1185             done
1186             ;;
1187         *-unknown-nacl)
1188             if [ -z "$CFG_NACL_CROSS_PATH" ]
1189             then
1190                 err "I need the NaCl SDK path! (use --nacl-cross-path)"
1191             fi
1192             ;;
1193         arm-apple-darwin)
1194             if [ $CFG_OSTYPE != apple-darwin ]
1195             then
1196                 err "The iOS target is only supported on Mac OS X"
1197             fi
1198             ;;
1199
1200
1201         x86_64-*-musl | arm-*-musleabi)
1202             if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
1203             then
1204                 err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
1205             fi
1206             ;;
1207
1208         *-msvc)
1209             # There are three builds of cmake on windows: MSVC, MinGW and Cygwin
1210             # The Cygwin build does not have generators for Visual Studio, so
1211             # detect that here and error.
1212             if ! "$CFG_CMAKE" --help | sed -n '/^Generators/,$p' | grep 'Visual Studio' > /dev/null
1213             then
1214                 err "
1215
1216 cmake does not support Visual Studio generators.
1217
1218 This is likely due to it being an msys/cygwin build of cmake, \
1219 rather than the required windows version, built using MinGW \
1220 or Visual Studio.
1221
1222 If you are building under msys2 try installing the mingw-w64-x86_64-cmake \
1223 package instead of cmake:
1224
1225 $ pacman -R cmake && pacman -S mingw-w64-x86_64-cmake
1226 "
1227             fi
1228
1229             # Use the REG program to figure out where VS is installed
1230             # We need to figure out where cl.exe and link.exe are, so we do some
1231             # munging and some probing here. We also look for the default
1232             # INCLUDE and LIB variables for MSVC so we can set those in the
1233             # build system as well.
1234             install=$(cmd //c reg QUERY \
1235                        'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0' \
1236                        -v InstallDir)
1237             if [ -z "$install" ]; then
1238               install=$(cmd //c reg QUERY \
1239                          'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0' \
1240                          -v InstallDir)
1241             fi
1242             need_ok "couldn't find visual studio install root"
1243             CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
1244             CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1245             CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1246             putvar CFG_MSVC_ROOT
1247
1248             case $i in
1249                 x86_64-*)
1250                     bits=x86_64
1251                     msvc_part=amd64
1252                     ;;
1253                 i*86-*)
1254                     bits=i386
1255                     msvc_part=
1256                     ;;
1257                 *)
1258                     err "can only target x86 targets for MSVC"
1259                     ;;
1260             esac
1261             bindir="${CFG_MSVC_ROOT}/VC/bin"
1262             if [ -n "$msvc_part" ]; then
1263                 bindir="$bindir/$msvc_part"
1264             fi
1265             eval CFG_MSVC_BINDIR_$bits="\"$bindir\""
1266             eval CFG_MSVC_CL_$bits="\"$bindir/cl.exe\""
1267             eval CFG_MSVC_LIB_$bits="\"$bindir/lib.exe\""
1268             eval CFG_MSVC_LINK_$bits="\"$bindir/link.exe\""
1269
1270             vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
1271             include_path=$(cmd //V:ON //c "$vcvarsall" $msvc_part \& echo !INCLUDE!)
1272             need_ok "failed to learn about MSVC's INCLUDE"
1273             lib_path=$(cmd //V:ON //c "$vcvarsall" $msvc_part \& echo !LIB!)
1274             need_ok "failed to learn about MSVC's LIB"
1275
1276             eval CFG_MSVC_INCLUDE_PATH_${bits}="\"$include_path\""
1277             eval CFG_MSVC_LIB_PATH_${bits}="\"$lib_path\""
1278
1279             putvar CFG_MSVC_BINDIR_${bits}
1280             putvar CFG_MSVC_CL_${bits}
1281             putvar CFG_MSVC_LIB_${bits}
1282             putvar CFG_MSVC_LINK_${bits}
1283             putvar CFG_MSVC_INCLUDE_PATH_${bits}
1284             putvar CFG_MSVC_LIB_PATH_${bits}
1285             ;;
1286
1287         *)
1288             ;;
1289     esac
1290 done
1291
1292 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
1293 then
1294     # There are some MSYS python builds which will auto-translate
1295     # windows-style paths to MSYS-style paths in Python itself.
1296     # Unfortunately this breaks LLVM's build system as somewhere along
1297     # the line LLVM prints a path into a file from Python and then CMake
1298     # later tries to interpret that path. If Python prints a MSYS path
1299     # and CMake tries to use it as a Windows path, you're gonna have a
1300     # Bad Time.
1301     #
1302     # Consequently here we try to detect when that happens and print an
1303     # error if it does.
1304     if $CFG_PYTHON -c 'import sys; print sys.argv[1]' `pwd` | grep '^/' > /dev/null
1305     then
1306         err "
1307
1308 python is silently translating windows paths to MSYS paths \
1309 and the build will fail if this python is used.
1310
1311 Either an official python install must be used or an \
1312 alternative python package in MinGW must be used.
1313
1314 If you are building under msys2 try installing the mingw-w64-x86_64-python2 \
1315 package instead of python2:
1316
1317 $ pacman -S mingw-w64-x86_64-python2
1318 "
1319     fi
1320 fi
1321
1322 if [ -n "$CFG_PERF" ]
1323 then
1324     HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1325     if [ -z "$HAVE_PERF_LOGFD" ];
1326     then
1327         CFG_PERF_WITH_LOGFD=1
1328         putvar CFG_PERF_WITH_LOGFD
1329     fi
1330 fi
1331
1332 if [ -z "$CFG_ENABLE_RUSTBUILD" ]; then
1333
1334   step_msg "making directories"
1335
1336   for i in \
1337       doc doc/std doc/extra \
1338       dl tmp dist
1339   do
1340       make_dir $i
1341   done
1342
1343   for t in $CFG_HOST
1344   do
1345       make_dir $t/llvm
1346   done
1347
1348   for t in $CFG_HOST
1349   do
1350       make_dir $t/rustllvm
1351   done
1352
1353   for t in $CFG_TARGET
1354   do
1355     make_dir $t/rt
1356     for s in 0 1 2 3
1357     do
1358       make_dir $t/rt/stage$s
1359       make_dir $t/rt/jemalloc
1360       make_dir $t/rt/compiler-rt
1361       for i in                                          \
1362         isaac sync test \
1363         arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1364       do
1365         make_dir $t/rt/stage$s/$i
1366       done
1367     done
1368   done
1369
1370   for h in $CFG_HOST
1371   do
1372       for t in $CFG_TARGET
1373       do
1374           # host bin dir stage0
1375           make_dir $h/stage0/bin
1376
1377           # host lib dir stage0
1378           make_dir $h/stage0/lib
1379
1380           # host test dir stage0
1381           make_dir $h/stage0/test
1382
1383           # target bin dir stage0
1384           make_dir $h/stage0/lib/rustlib/$t/bin
1385
1386           # target lib dir stage0
1387           make_dir $h/stage0/lib/rustlib/$t/lib
1388
1389           for i in 1 2 3
1390           do
1391               # host bin dir
1392               make_dir $h/stage$i/bin
1393
1394               # host lib dir
1395               make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1396
1397               # host test dir
1398               make_dir $h/stage$i/test
1399
1400               # target bin dir
1401               make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1402
1403               # target lib dir
1404               make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1405           done
1406       done
1407
1408       make_dir $h/test/run-pass
1409       make_dir $h/test/run-pass-valgrind
1410       make_dir $h/test/run-pass-fulldeps
1411       make_dir $h/test/run-fail
1412       make_dir $h/test/run-fail-fulldeps
1413       make_dir $h/test/compile-fail
1414       make_dir $h/test/parse-fail
1415       make_dir $h/test/compile-fail-fulldeps
1416       make_dir $h/test/bench
1417       make_dir $h/test/perf
1418       make_dir $h/test/pretty
1419       make_dir $h/test/debuginfo-gdb
1420       make_dir $h/test/debuginfo-lldb
1421       make_dir $h/test/codegen
1422       make_dir $h/test/codegen-units
1423       make_dir $h/test/rustdoc
1424   done
1425
1426 fi
1427
1428 # Configure submodules
1429 step_msg "configuring submodules"
1430
1431 # Have to be in the top of src directory for this
1432 if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ] && [ -z $CFG_ENABLE_RUSTBUILD ]
1433 then
1434     cd ${CFG_SRC_DIR}
1435
1436     msg "git: submodule sync"
1437     "${CFG_GIT}" submodule sync
1438
1439     msg "git: submodule init"
1440     "${CFG_GIT}" submodule init
1441
1442     # Disable submodules that we're not using
1443     if [ -n "${CFG_LLVM_ROOT}" ]; then
1444         msg "git: submodule deinit src/llvm"
1445         "${CFG_GIT}" submodule deinit src/llvm
1446     fi
1447     if [ -n "${CFG_JEMALLOC_ROOT}" ]; then
1448         msg "git: submodule deinit src/jemalloc"
1449         "${CFG_GIT}" submodule deinit src/jemalloc
1450     fi
1451
1452     msg "git: submodule update"
1453     "${CFG_GIT}" submodule update
1454     need_ok "git failed"
1455
1456     msg "git: submodule foreach sync"
1457     "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1458     need_ok "git failed"
1459
1460     msg "git: submodule foreach update"
1461     "${CFG_GIT}" submodule update --recursive
1462     need_ok "git failed"
1463
1464     # NB: this is just for the sake of getting the submodule SHA1 values
1465     # and status written into the build log.
1466     msg "git: submodule status"
1467     "${CFG_GIT}" submodule status --recursive
1468
1469     msg "git: submodule clobber"
1470     "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1471     need_ok "git failed"
1472     "${CFG_GIT}" submodule foreach --recursive git checkout .
1473     need_ok "git failed"
1474
1475     cd ${CFG_BUILD_DIR}
1476 fi
1477
1478 # Do a sanity check that the submodule source exists. Because GitHub
1479 # automatically publishes broken tarballs that can't be disabled, and
1480 # people download them and try to use them.
1481 if [ ! -e "${CFG_SRC_DIR}/src/liblibc" ]; then
1482     err "some submodules are missing. Is this a broken tarball?
1483
1484 If you downloaded this tarball from the GitHub release pages at
1485 https://github.com/rust-lang/rust/releases,
1486 then please delete it and instead download the source from
1487 https://www.rust-lang.org/downloads.html"
1488
1489 fi
1490
1491 # Configure llvm, only if necessary
1492 step_msg "looking at LLVM"
1493 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1494 for t in $CFG_HOST
1495 do
1496     do_reconfigure=1
1497     is_msvc=0
1498     case "$t" in
1499         (*-msvc)
1500         is_msvc=1
1501         ;;
1502     esac
1503
1504     if [ -n "$CFG_ENABLE_RUSTBUILD" ]
1505     then
1506         msg "not configuring LLVM, rustbuild in use"
1507         do_reconfigure=0
1508     elif [ -z $CFG_LLVM_ROOT ]
1509     then
1510         LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1511         LLVM_INST_DIR=$LLVM_BUILD_DIR
1512         # For some crazy reason the MSVC output dir is different than Unix
1513         if [ ${is_msvc} -ne 0 ]; then
1514             if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1515             then
1516                 # Just use LLVM straight from its build directory to
1517                 # avoid 'make install' time
1518                 LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1519             else
1520                 LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1521             fi
1522         fi
1523     else
1524         msg "not reconfiguring LLVM, external LLVM root"
1525         # The user is using their own LLVM
1526         LLVM_BUILD_DIR=
1527         LLVM_INST_DIR=$CFG_LLVM_ROOT
1528         do_reconfigure=0
1529         # Check that LLVm FileCheck is available. Needed for the tests
1530         if [ -z "$CFG_DISABLE_CODEGEN_TESTS" ]; then
1531             need_cmd $LLVM_INST_DIR/bin/FileCheck
1532         fi
1533     fi
1534
1535     if [ ${do_reconfigure} -ne 0 ]
1536     then
1537     # because git is hilarious, it might have put the module index
1538     # in a couple places.
1539         index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1540         index2="${CFG_SRC_DIR}src/llvm/.git/index"
1541         for index in ${index1} ${index2}
1542         do
1543             config_status="${LLVM_BUILD_DIR}/config.status"
1544             if test -e ${index} -a \
1545                     -e ${config_status} -a \
1546                     ${config_status} -nt ${index}
1547             then
1548                 msg "not reconfiguring LLVM, config.status is fresh"
1549                 do_reconfigure=0
1550             fi
1551         done
1552     fi
1553
1554     # We need the generator later on for compiler-rt even if LLVM's not built
1555     if [ -n "$CFG_NINJA" ]
1556     then
1557         generator="Ninja"
1558     elif [ ${is_msvc} -ne 0 ]
1559     then
1560         case "$CFG_MSVC_ROOT" in
1561             *14.0*)
1562                 generator="Visual Studio 14 2015"
1563                 ;;
1564             *12.0*)
1565                 generator="Visual Studio 12 2013"
1566                 ;;
1567             *)
1568                 err "can't determine generator for LLVM cmake"
1569                 ;;
1570         esac
1571         case "$t" in
1572             x86_64-*)
1573                 generator="$generator Win64"
1574                 ;;
1575             i686-*)
1576                 ;;
1577             *)
1578                 err "can only build LLVM for x86 platforms"
1579                 ;;
1580         esac
1581     else
1582         generator="Unix Makefiles"
1583     fi
1584     CFG_CMAKE_GENERATOR=$generator
1585     putvar CFG_CMAKE_GENERATOR
1586
1587     msg "configuring LLVM for $t"
1588
1589     LLVM_CFLAGS_32=""
1590     LLVM_CXXFLAGS_32=""
1591     LLVM_LDFLAGS_32=""
1592     LLVM_CFLAGS_64=""
1593     LLVM_CXXFLAGS_64=""
1594     LLVM_LDFLAGS_64=""
1595
1596     case "$CFG_CC" in
1597         ("ccache clang")
1598             LLVM_CXX_32="ccache"
1599             LLVM_CC_32="ccache"
1600             LLVM_CXX_32_ARG1="clang++"
1601             LLVM_CC_32_ARG1="clang"
1602             LLVM_CFLAGS_32="-Qunused-arguments"
1603             LLVM_CXXFLAGS_32="-Qunused-arguments"
1604
1605             LLVM_CXX_64="ccache"
1606             LLVM_CC_64="ccache"
1607             LLVM_CXX_64_ARG1="clang++"
1608             LLVM_CC_64_ARG1="clang"
1609             LLVM_CFLAGS_64="-Qunused-arguments"
1610             LLVM_CXXFLAGS_64="-Qunused-arguments"
1611             ;;
1612         ("clang")
1613             LLVM_CXX_32="clang++"
1614             LLVM_CC_32="clang"
1615             LLVM_CFLAGS_32="-Qunused-arguments"
1616             LLVM_CXXFLAGS_32="-Qunused-arguments"
1617
1618             LLVM_CXX_64="clang++"
1619             LLVM_CC_64="clang"
1620             LLVM_CFLAGS_64="-Qunused-arguments"
1621             LLVM_CXXFLAGS_64="-Qunused-arguments"
1622             ;;
1623         ("ccache gcc")
1624             LLVM_CXX_32="ccache"
1625             LLVM_CC_32="ccache"
1626             LLVM_CXX_32_ARG1="clang++"
1627             LLVM_CC_32_ARG1="clang"
1628
1629             LLVM_CXX_64="ccache"
1630             LLVM_CC_64="ccache"
1631             LLVM_CXX_64_ARG1="g++"
1632             LLVM_CC_64_ARG1="gcc"
1633             ;;
1634         ("gcc")
1635             LLVM_CXX_32="g++"
1636             LLVM_CC_32="gcc"
1637
1638             LLVM_CXX_64="g++"
1639             LLVM_CC_64="gcc"
1640             ;;
1641
1642         (*)
1643             msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1644             if [ -n "$CFG_ENABLE_CCACHE" ]
1645             then
1646                 if [ -z "$CFG_CCACHE" ]
1647                 then
1648                     err "ccache requested but not found"
1649                 fi
1650
1651                 LLVM_CXX_32="ccache"
1652                 LLVM_CC_32="ccache"
1653                 LLVM_CXX_32_ARG1="$CXX"
1654                 LLVM_CC_32_ARG1="$CC"
1655
1656                 LLVM_CXX_64="ccache"
1657                 LLVM_CC_64="ccache"
1658                 LLVM_CXX_64_ARG1="$CXX"
1659                 LLVM_CC_64_ARG1="$CC"
1660             else
1661                 LLVM_CXX_32="$CXX"
1662                 LLVM_CC_32="$CC"
1663
1664                 LLVM_CXX_64="$CXX"
1665                 LLVM_CC_64="$CC"
1666             fi
1667
1668             ;;
1669     esac
1670
1671     case "$CFG_CPUTYPE" in
1672         (x86*)
1673             LLVM_CFLAGS_32="$LLVM_CFLAGS_32 -m32"
1674             LLVM_CXXFLAGS_32="$LLVM_CXXFLAGS_32 -m32"
1675             LLVM_LDFLAGS_32="$LLVM_LDFLAGS_32 -m32"
1676             ;;
1677     esac
1678
1679     if echo $t | grep -q x86_64
1680     then
1681         LLVM_CXX=$LLVM_CXX_64
1682         LLVM_CC=$LLVM_CC_64
1683         LLVM_CXX_ARG1=$LLVM_CXX_64_ARG1
1684         LLVM_CC_ARG1=$LLVM_CC_64_ARG1
1685         LLVM_CFLAGS=$LLVM_CFLAGS_64
1686         LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1687         LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1688     else
1689         LLVM_CXX=$LLVM_CXX_32
1690         LLVM_CC=$LLVM_CC_32
1691         LLVM_CXX_ARG1=$LLVM_CXX_32_ARG1
1692         LLVM_CC_ARG1=$LLVM_CC_32_ARG1
1693         LLVM_CFLAGS=$LLVM_CFLAGS_32
1694         LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1695         LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1696     fi
1697
1698     if [ "$CFG_USING_LIBCPP" != "0" ]; then
1699         CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_LIBCXX=ON"
1700     fi
1701
1702     # Turn off things we don't need
1703     CMAKE_ARGS="$CMAKE_ARGS -DLLVM_INCLUDE_TESTS=OFF"
1704     CMAKE_ARGS="$CMAKE_ARGS -DLLVM_INCLUDE_EXAMPLES=OFF"
1705     CMAKE_ARGS="$CMAKE_ARGS -DLLVM_INCLUDE_DOCS=OFF"
1706     CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ZLIB=OFF"
1707     CMAKE_ARGS="$CMAKE_ARGS -DWITH_POLY=OFF"
1708     CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_TERMINFO=OFF"
1709     CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_LIBEDIT=OFF"
1710
1711     arch="$(echo "$t" | cut -d - -f 1)"
1712
1713     if [ "$arch" = i686 ]; then
1714         CMAKE_ARGS="$CMAKE_ARGS -DLLVM_BUILD_32_BITS=ON"
1715     fi
1716
1717     if [ "$t" != "$CFG_BUILD" ]; then
1718         # see http://llvm.org/docs/HowToCrossCompileLLVM.html
1719         CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_CROSSCOMPILING=True"
1720         CMAKE_ARGS="$CMAKE_ARGS -DLLVM_TARGET_ARCH=$arch"
1721         CMAKE_ARGS="$CMAKE_ARGS -DLLVM_TABLEGEN=$CFG_BUILD_DIR/$CFG_BUILD/llvm/bin/llvm-tblgen"
1722         CMAKE_ARGS="$CMAKE_ARGS -DLLVM_DEFAULT_TARGET_TRIPLE=$t"
1723     fi
1724
1725     # MSVC handles compiler business itself
1726     if [ ${is_msvc} -eq 0 ]; then
1727         CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_C_COMPILER=$LLVM_CC"
1728         CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_CXX_COMPILER=$LLVM_CXX"
1729         CMAKE_ARGS="$CMAKE_ARGS '-DCMAKE_C_FLAGS=$LLVM_CFLAGS'"
1730         CMAKE_ARGS="$CMAKE_ARGS '-DCMAKE_CXX_FLAGS=$LLVM_CXXFLAGS'"
1731         if [ -n "$LLVM_CC_ARG1" ]; then
1732             CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_C_COMPILER_ARG1=$LLVM_CC_ARG1"
1733         fi
1734         if [ -n "$LLVM_CXX_ARG1" ]; then
1735             CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_CXX_COMPILER_ARG1=$LLVM_CXX_ARG1"
1736         fi
1737         # FIXME: What about LDFLAGS?
1738     fi
1739
1740     if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then
1741         CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Debug"
1742     else
1743         CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release"
1744     fi
1745     if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1746     then
1747         CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=OFF"
1748     else
1749         CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=ON"
1750     fi
1751
1752     CMAKE_ARGS="$CMAKE_ARGS -DLLVM_TARGETS_TO_BUILD='X86;ARM;AArch64;Mips;PowerPC'"
1753     CMAKE_ARGS="$CMAKE_ARGS -G '$CFG_CMAKE_GENERATOR'"
1754     CMAKE_ARGS="$CMAKE_ARGS $CFG_LLVM_SRC_DIR"
1755
1756     if [ ${do_reconfigure} -ne 0 ]
1757     then
1758         msg "configuring LLVM for $t with cmake"
1759
1760         msg "configuring LLVM with:"
1761         msg "$CMAKE_ARGS"
1762
1763         (cd $LLVM_BUILD_DIR && eval "\"$CFG_CMAKE\"" $CMAKE_ARGS)
1764         need_ok "LLVM cmake configure failed"
1765     fi
1766
1767     # Construct variables for LLVM build and install directories for
1768     # each target. These will be named
1769     # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1770     # target_triple will be converted to underscore, because bash
1771     # variables can't contain hyphens. The makefile will then have to
1772     # convert back.
1773     CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1774     CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1775     eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1776     eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1777 done
1778
1779
1780 step_msg "writing configuration"
1781
1782 putvar CFG_SRC_DIR
1783 putvar CFG_SRC_DIR_RELATIVE
1784 putvar CFG_BUILD_DIR
1785 putvar CFG_OSTYPE
1786 putvar CFG_CPUTYPE
1787 putvar CFG_CONFIGURE_ARGS
1788 putvar CFG_PREFIX
1789 putvar CFG_HOST
1790 putvar CFG_TARGET
1791 putvar CFG_LIBDIR_RELATIVE
1792 putvar CFG_DISABLE_MANAGE_SUBMODULES
1793 putvar CFG_AARCH64_LINUX_ANDROID_NDK
1794 putvar CFG_ARM_LINUX_ANDROIDEABI_NDK
1795 putvar CFG_ARMV7_LINUX_ANDROIDEABI_NDK
1796 putvar CFG_I686_LINUX_ANDROID_NDK
1797 putvar CFG_NACL_CROSS_PATH
1798 putvar CFG_MANDIR
1799 putvar CFG_USING_LIBCPP
1800
1801 # Avoid spurious warnings from clang by feeding it original source on
1802 # ccache-miss rather than preprocessed input.
1803 if [ -n "$CFG_ENABLE_CCACHE" ] && [ -n "$CFG_USING_CLANG" ]
1804 then
1805     CFG_CCACHE_CPP2=1
1806     putvar CFG_CCACHE_CPP2
1807 fi
1808
1809 if [ -n "$CFG_ENABLE_CCACHE" ]
1810 then
1811     CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1812     putvar CFG_CCACHE_BASEDIR
1813 fi
1814
1815
1816 putvar CFG_LLVM_SRC_DIR
1817
1818 for t in $CFG_HOST
1819 do
1820     CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1821     CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1822     putvar $CFG_LLVM_BUILD_DIR
1823     putvar $CFG_LLVM_INST_DIR
1824 done
1825
1826 if [ -n "$CFG_ENABLE_RUSTBUILD" ]
1827 then
1828     INPUT_MAKEFILE=src/bootstrap/mk/Makefile.in
1829 else
1830     INPUT_MAKEFILE=Makefile.in
1831 fi
1832
1833 msg
1834 copy_if_changed ${CFG_SRC_DIR}${INPUT_MAKEFILE} ./Makefile
1835 move_if_changed config.tmp config.mk
1836 rm -f config.tmp
1837 touch config.stamp
1838
1839 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1840     step_msg "configured in release mode. for development consider --enable-debug"
1841 else
1842     step_msg "complete"
1843 fi
1844
1845 msg "run \`make help\`"
1846 msg