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
7 exec /usr/bin/env bash $0 "$@"
9 unset POSIX_SHELL # clear it so if we invoke other scripts, they run as bash as well
22 echo "configure: WARNING: $1"
26 echo "configure: error: $1"
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"
59 msg "leaving $2 unchanged"
62 chmod u-w $2 # make copied artifact read-only
69 msg "leaving $2 unchanged"
72 chmod u-w $2 # make moved artifact read-only
82 printf "configure: %-20s := %.35s ...\n" $1 "$T"
84 printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
86 printf "%-20s := %s\n" $1 "$T" >>config.tmp
95 printf "configure: %-20s := %.35s ...\n" $1 "$T"
97 printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
101 printf "%-20s := \n" $1 >>config.tmp
103 printf "%-20s := \"%s\"\n" $1 "$T" >>config.tmp
114 T=$(command -v $P 2>&1)
117 VER0=$($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" ]
141 err "needed, but unable to find any of: $*"
146 for arg in $CFG_CONFIGURE_ARGS
149 for option in $BOOL_OPTIONS
151 if test --disable-$option = $arg
155 if test --enable-$option = $arg
160 for option in $VAL_OPTIONS
162 if echo "$arg" | grep -q -- "--$option="
167 if [ "$arg" = "--help" ]
170 echo "No more help available for Configure options,"
171 echo "check the Wiki or join our IRC channel"
174 if test $isArgValid -eq 0
176 err "Option '$arg' is not recognized"
182 # `valopt OPTION_NAME DEFAULT DOC` extracts a string-valued option
183 # from command line, using provided default value for the option if
184 # not present, and saves it to the generated config.mk.
186 # `valopt_nosave` is much the same, except that it does not save the
187 # result to config.mk (instead the script should use `putvar` itself
188 # later on to save it). `valopt_core` is the core upon which the
189 # other two are built.
192 VAL_OPTIONS="$VAL_OPTIONS $2"
203 local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
205 local V_PROVIDED="${V}_PROVIDED"
207 for arg in $CFG_CONFIGURE_ARGS
209 if echo "$arg" | grep -q -- "--$OP="
211 val=$(echo "$arg" | cut -f2 -d=)
216 if [ "$SAVE" = "save" ]
225 OP="${OP}=[${DEFAULT}]"
226 printf " --%-30s %s\n" "$OP" "$DOC"
231 valopt_core nosave "$@"
235 valopt_core save "$@"
238 # `opt OPTION_NAME DEFAULT DOC` extracts a boolean-valued option from
239 # command line, using the provided default value (0/1) for the option
240 # if not present, and saves it to the generated config.mk.
242 # `opt_nosave` is much the same, except that it does not save the
243 # result to config.mk (instead the script should use `putvar` itself
244 # later on to save it). `opt_core` is the core upon which the other
248 BOOL_OPTIONS="$BOOL_OPTIONS $2"
259 if [ $DEFAULT -eq 0 ]
262 DEFAULT_FLAG="disable"
265 DEFAULT_FLAG="enable"
271 for arg in $CFG_CONFIGURE_ARGS
273 if [ "$arg" = "--${FLAG}-${OP}" ]
275 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
276 FLAG=$(echo $FLAG | tr 'a-z' 'A-Z')
277 local V="CFG_${FLAG}_${OP}"
278 local V_PROVIDED="CFG_${FLAG}_${OP}_PROVIDED"
281 if [ "$SAVE" = "save" ]
285 elif [ "$arg" = "--${DEFAULT_FLAG}-${OP}" ]
287 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
288 DEFAULT_FLAG=$(echo $DEFAULT_FLAG | tr 'a-z' 'A-Z')
289 local V_PROVIDED="CFG_${DEFAULT_FLAG}_${OP}_PROVIDED"
298 printf " --%-30s %s\n" "$FLAG-$OP" "$DOC"
312 local V="CFG_${NAME}"
315 # If configure didn't set a value already, then check environment.
317 # (It is recommended that the configure script always check the
318 # environment before setting any values to envopt variables; see
319 # e.g. how CFG_CC is handled, where it first checks `-z "$CC"`,
320 # and issues msg if it ends up employing that provided value.)
327 # If script or environment provided a value, save it.
334 enable_if_not_disabled() {
336 local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
337 local ENAB_V="CFG_ENABLE_$UOP"
338 local EXPLICITLY_DISABLED="CFG_DISABLE_${UOP}_PROVIDED"
339 eval VV=\$$EXPLICITLY_DISABLED
340 if [ -z "$VV" ]; then
347 i686-pc-windows-gnu) echo i686-w64-mingw32 ;;
348 x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;;
353 # Prints the absolute path of a directory to stdout
356 # Unset CDPATH because it causes havok: it makes the destination unpredictable
357 # and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null
359 (unset CDPATH && cd "$_path" > /dev/null && pwd)
362 msg "looking for configure programs"
379 msg "inspecting environment"
381 CFG_OSTYPE=$(uname -s)
382 CFG_CPUTYPE=$(uname -m)
384 if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ]
386 # Darwin's `uname -s` lies and always returns i386. We have to use sysctl
388 if sysctl hw.optional.x86_64 | grep -q ': 1'
394 # The goal here is to come up with the same triple as LLVM would,
395 # at least for the subset of platforms we're willing to target.
400 CFG_OSTYPE=unknown-linux-gnu
404 CFG_OSTYPE=unknown-freebsd
408 CFG_OSTYPE=unknown-dragonfly
412 CFG_OSTYPE=unknown-bitrig
416 CFG_OSTYPE=unknown-openbsd
420 CFG_OSTYPE=unknown-netbsd
424 CFG_OSTYPE=apple-darwin
428 CFG_OSTYPE=sun-solaris
429 CFG_CPUTYPE=$(isainfo -n)
433 # msys' `uname` does not print gcc configuration, but prints msys
434 # configuration. so we cannot believe `uname -m`:
435 # msys1 is always i686 and msys2 is always x86_64.
436 # instead, msys defines $MSYSTEM which is MINGW32 on i686 and
439 CFG_OSTYPE=pc-windows-gnu
440 if [ "$MSYSTEM" = MINGW64 ]
447 CFG_OSTYPE=pc-windows-gnu
450 # Thad's Cygwin identifiers below
454 CFG_OSTYPE=pc-windows-gnu
460 CFG_OSTYPE=pc-windows-gnu
466 CFG_OSTYPE=pc-windows-gnu
472 CFG_OSTYPE=pc-windows-gnu
476 # 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 CFG_OSTYPE=pc-windows-gnu
480 # We do not detect other OS such as XP/2003 using 64 bit using uname.
481 # 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 err "unknown OS type: $CFG_OSTYPE"
490 i386 | i486 | i686 | i786 | x86)
500 CFG_OSTYPE="${CFG_OSTYPE}eabihf"
512 CFG_CPUTYPE=powerpc64
515 powerpc64le | ppc64le)
516 CFG_CPUTYPE=powerpc64le
519 x86_64 | x86-64 | x64 | amd64)
524 err "unknown CPU type: $CFG_CPUTYPE"
527 # Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation
528 if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ]
530 # $SHELL does not exist in standard 'sh', so probably only exists
531 # if configure is running in an interactive bash shell. /usr/bin/env
532 # exists *everywhere*.
533 BIN_TO_PROBE="$SHELL"
534 if [ ! -r "$BIN_TO_PROBE" ]; then
535 if [ -r "/usr/bin/env" ]; then
536 BIN_TO_PROBE="/usr/bin/env"
538 warn "Cannot check if the userland is i686 or x86_64"
541 file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
543 msg "i686 userland on x86_64 Linux kernel"
549 DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
551 CFG_SRC_DIR="$(abs_path $(dirname $0))/"
552 CFG_SRC_DIR_RELATIVE="$(dirname $0)/"
553 CFG_BUILD_DIR="$(pwd)/"
555 CFG_CONFIGURE_ARGS="$@"
558 case "${CFG_SRC_DIR}" in
560 err "The path to the rust source directory contains spaces, which is not supported"
569 if [ "$1" = "--help" ]
574 echo "Usage: $CFG_SELF [options]"
579 msg "recreating config.tmp"
582 step_msg "processing $CFG_SELF args"
588 opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
589 opt valgrind 0 "run tests with valgrind (memcheck by default)"
590 opt helgrind 0 "run tests with helgrind instead of memcheck"
591 opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
592 opt docs 1 "build standard library documentation"
593 opt compiler-docs 0 "build compiler documentation"
594 opt optimize-tests 1 "build tests with optimizations"
595 opt debuginfo-tests 0 "build tests with debugger metadata"
596 opt libcpp 1 "build with llvm with libc++ instead of libstdc++ when using clang"
597 opt llvm-assertions 0 "build LLVM with assertions"
598 opt debug-assertions 0 "build with debugging assertions"
599 opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
600 opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
601 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
602 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
603 opt rpath 1 "build rpaths into rustc itself"
604 opt stage0-landing-pads 1 "enable landing pads during bootstrap with stage0"
605 # This is used by the automation to produce single-target nightlies
606 opt dist-host-only 0 "only install bins for the host architecture"
607 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
608 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
609 opt rustbuild 0 "use the rust and cargo based build system"
610 opt orbit 0 "get MIR where it belongs - everywhere; most importantly, in orbit"
612 # Optimization and debugging options. These may be overridden by the release channel, etc.
613 opt_nosave optimize 1 "build optimized rust code"
614 opt_nosave optimize-cxx 1 "build optimized C++ code"
615 opt_nosave optimize-llvm 1 "build optimized LLVM"
616 opt_nosave llvm-assertions 0 "build LLVM with assertions"
617 opt_nosave debug-assertions 0 "build with debugging assertions"
618 opt_nosave debuginfo 0 "build with debugger metadata"
619 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
621 valopt localstatedir "/var/lib" "local state directory"
622 valopt sysconfdir "/etc" "install system configuration files"
624 valopt datadir "${CFG_PREFIX}/share" "install data"
625 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
626 valopt llvm-root "" "set LLVM root"
627 valopt python "" "set path to python"
628 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
629 valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
630 valopt android-cross-path "" "Android NDK standalone path (deprecated)"
631 valopt i686-linux-android-ndk "" "i686-linux-android NDK standalone path"
632 valopt arm-linux-androideabi-ndk "" "arm-linux-androideabi NDK standalone path"
633 valopt aarch64-linux-android-ndk "" "aarch64-linux-android NDK standalone path"
634 valopt nacl-cross-path "" "NaCl SDK path (Pepper Canary is recommended). Must be absolute!"
635 valopt release-channel "dev" "the name of the release channel to build"
636 valopt musl-root "/usr/local" "MUSL root installation directory"
637 valopt extra-filename "" "Additional data that is hashed and passed to the -C extra-filename flag"
639 # Used on systems where "cc" and "ar" are unavailable
640 valopt default-linker "cc" "the default linker"
641 valopt default-ar "ar" "the default ar"
643 # Many of these are saved below during the "writing configuration" step
644 # (others are conditionally saved).
645 opt_nosave manage-submodules 1 "let the build manage the git submodules"
646 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
647 opt_nosave jemalloc 1 "build liballoc with jemalloc"
648 opt elf-tls 1 "elf thread local storage on platforms where supported"
650 valopt_nosave prefix "/usr/local" "set installation prefix"
651 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
652 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
653 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
654 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
656 # On Windows this determines root of the subtree for target libraries.
657 # Host runtime libs always go to 'bin'.
658 valopt libdir "${CFG_PREFIX}/lib" "install libraries"
660 case "$CFG_LIBDIR" in
661 "$CFG_PREFIX"/*) CAT_INC=2;;
662 "$CFG_PREFIX"*) CAT_INC=1;;
664 err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
667 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
676 step_msg "validating $CFG_SELF args"
679 # Validate the release channel, and configure options
680 case "$CFG_RELEASE_CHANNEL" in
682 msg "overriding settings for $CFG_RELEASE_CHANNEL"
683 CFG_ENABLE_LLVM_ASSERTIONS=1
688 err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
692 # Adjust perf and debug options for debug mode
693 if [ -n "$CFG_ENABLE_DEBUG" ]; then
694 msg "debug mode enabled, setting performance options"
695 if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
696 msg "optimization not explicitly enabled, disabling optimization"
697 CFG_DISABLE_OPTIMIZE=1
698 CFG_DISABLE_OPTIMIZE_CXX=1
701 # Set following variables to 1 unless setting already provided
702 enable_if_not_disabled debug-assertions
703 enable_if_not_disabled debug-jemalloc
704 enable_if_not_disabled debuginfo
705 enable_if_not_disabled llvm-assertions
708 # OK, now write the debugging options
709 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
710 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
711 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
712 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
713 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
714 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
715 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
717 if [ -n "$CFG_ENABLE_ORBIT" ]; then putvar CFG_ENABLE_ORBIT; fi
719 # A magic value that allows the compiler to use unstable features
720 # during the bootstrap even when doing so would normally be an error
721 # because of feature staging or because the build turns on
722 # warnings-as-errors and unstable features default to warnings. The
723 # build has to match this key in an env var. Meant to be a mild
724 # deterrent from users just turning on unstable features on the stable
726 # Basing CFG_BOOTSTRAP_KEY on CFG_BOOTSTRAP_KEY lets it get picked up
727 # during a Makefile reconfig.
728 CFG_BOOTSTRAP_KEY="${CFG_BOOTSTRAP_KEY-`date +%H:%M:%S`}"
729 putvar CFG_BOOTSTRAP_KEY
731 step_msg "looking for build programs"
733 probe_need CFG_CURLORWGET curl wget
734 if [ -z "$CFG_PYTHON_PROVIDED" ]; then
735 probe_need CFG_PYTHON python2.7 python2 python
738 python_version=$($CFG_PYTHON -V 2>&1)
739 if [ $(echo $python_version | grep -c '^Python 2\.7') -ne 1 ]; then
740 err "Found $python_version, but Python 2.7 is required"
743 # If we have no git directory then we are probably a tarball distribution
744 # and shouldn't attempt to load submodules
745 if [ ! -e ${CFG_SRC_DIR}.git ]
748 msg "git: no git directory. disabling submodules"
749 CFG_DISABLE_MANAGE_SUBMODULES=1
751 probe_need CFG_GIT git
754 # Use `md5sum` on GNU platforms, or `md5 -q` on BSD
756 probe CFG_MD5SUM md5sum
759 CFG_HASH_COMMAND="$CFG_MD5 -q | cut -c 1-8"
760 elif [ -n "$CFG_MD5SUM" ]
762 CFG_HASH_COMMAND="$CFG_MD5SUM | cut -c 1-8"
764 err 'could not find one of: md5 md5sum'
766 putvar CFG_HASH_COMMAND
768 probe CFG_CLANG clang++
769 probe CFG_CCACHE ccache
772 probe CFG_VALGRIND valgrind
775 probe CFG_ANTLR4 antlr4
778 probe CFG_BISON bison
782 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
783 # installed. Since `javac` is only used if `antlr4` is available,
784 # probe for it only in this case.
785 if [ -n "$CFG_ANTLR4" ]
787 probe CFG_JAVAC javac
790 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
791 # only disabled if you opt out.
792 if [ -z "$CFG_VALGRIND" ]
794 # If the user has explicitly asked for valgrind tests, then fail
795 if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
797 err "No valgrind present, but valgrind tests explicitly requested"
799 CFG_DISABLE_VALGRIND_RPASS=1
800 putvar CFG_DISABLE_VALGRIND_RPASS
806 # Store GDB's version
807 CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
808 putvar CFG_GDB_VERSION
811 if [ -n "$CFG_LLDB" ]
813 # Store LLDB's version
814 CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
815 putvar CFG_LLDB_VERSION
817 # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
818 # LLDB via the -P commandline options.
819 if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
821 CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
823 # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
824 if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
826 CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
829 putvar CFG_LLDB_PYTHON_DIR
833 step_msg "looking for target specific programs"
838 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
843 if [ -n "$CFG_ENABLE_LOCAL_RUST" ]
845 system_rustc=$(which rustc)
846 if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
848 : # everything already configured
849 elif [ -n "$system_rustc" ]
851 # we assume that rustc is in a /bin directory
852 CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
854 err "no local rust to use"
857 CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
861 step_msg "failure while running $CMD --version"
864 step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
865 putvar CFG_LOCAL_RUST_ROOT
868 # Force bitrig to build with clang; gcc doesn't like us there
869 if [ $CFG_OSTYPE = unknown-bitrig ]
871 step_msg "on Bitrig, forcing use of clang"
875 # default gcc version under OpenBSD maybe too old, try using egcc, which is a
876 # gcc version from ports
877 if [ $CFG_OSTYPE = unknown-openbsd ]
879 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
880 step_msg "older GCC found, try with egcc instead"
882 # probe again but using egcc
885 # and use egcc/eg++ for CC/CXX too if it was found
886 # (but user setting has priority)
887 if [ -n "$CFG_GCC" ]; then
894 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
895 # system, so if we find that gcc is clang, we should just use clang directly.
896 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
898 CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
901 step_msg "on OS X >=10.9, forcing use of clang"
904 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
905 step_msg "older GCC found, using clang instead"
908 # on OS X, with xcode 5 and newer, certain developers may have
909 # cc, gcc and g++ point to a mixture of clang and gcc
910 # if so, this will create very strange build errors
911 # this last stanza is to detect some such problems and save the future rust
912 # contributor some time solving that issue.
913 # this detection could be generalized to other OSes aside from OS X
914 # but the issue seems most likely to happen on OS X
917 $1 --version 2> /dev/null | grep -q $2
919 # check that gcc, cc and g++ all point to the same compiler.
920 # note that for xcode 5, g++ points to clang, not clang++
921 if !((chk_cc gcc clang && chk_cc g++ clang) ||
922 (chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then
923 err "the gcc and g++ in your path point to different compilers.
924 Check which versions are in your path with gcc --version and g++ --version.
925 To resolve this problem, either fix your PATH or run configure with --enable-clang"
932 # If the clang isn't already enabled, check for GCC, and if it is missing, turn
933 # on clang as a backup.
934 if [ -z "$CFG_ENABLE_CLANG" ]
936 CFG_GCC_VERSION=$("$CFG_GCC" --version 2>&1)
939 step_msg "GCC not installed, will try using Clang"
944 # Okay, at this point, we have made up our minds about whether we are
945 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
946 if [ -n "$CFG_ENABLE_CLANG" ]
948 putvar CFG_ENABLE_CLANG
951 if [ -z "$CFG_DISABLE_LIBCPP" -a -n "$CFG_ENABLE_CLANG" ]
958 # Same with jemalloc. save the setting here.
959 if [ -n "$CFG_DISABLE_JEMALLOC" ]
961 putvar CFG_DISABLE_JEMALLOC
964 if [ -n "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
966 step_msg "using custom LLVM at $CFG_LLVM_ROOT"
968 LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
969 LLVM_VERSION=$($LLVM_CONFIG --version)
971 case $LLVM_VERSION in
973 msg "found ok version of LLVM: $LLVM_VERSION"
976 err "bad LLVM version: $LLVM_VERSION, need >=3.5"
981 # Even when the user overrides the choice of CC, still try to detect
982 # clang to disable some clang-specific warnings. We here draw a
983 # distinction between:
985 # CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
986 # CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
988 # This distinction is important because there are some safeguards we
989 # would prefer to skip when merely CFG_USING_CLANG is set; but when
990 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
991 # running such safeguards.
995 msg "skipping compiler inference steps; using provided CC=$CC"
998 CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
1001 step_msg "note, user-provided CC looks like clang; CC=$CC."
1003 putvar CFG_USING_CLANG
1006 if [ -n "$CFG_ENABLE_CLANG" ]
1008 if [ -z "$CFG_CLANG" ]
1010 err "clang requested but not found"
1014 putvar CFG_USING_CLANG
1020 if [ -n "$CFG_ENABLE_CLANG" ]
1024 CFG_CLANG_REPORTED_VERSION=$($CFG_CC --version | grep version)
1026 if echo $CFG_CLANG_REPORTED_VERSION | grep -q "(based on LLVM "; then
1027 CFG_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*(based on LLVM \(.*\))/\1/')
1028 elif echo $CFG_CLANG_REPORTED_VERSION | grep -q "Apple LLVM"; then
1029 CFG_OSX_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*version \(.*\) .*/\1/')
1031 CFG_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*version \(.*\) .*/\1/')
1034 if [ -n "$CFG_OSX_CLANG_VERSION" ]
1036 case $CFG_OSX_CLANG_VERSION in
1037 (7.0* | 7.1* | 7.2* | 7.3*)
1038 step_msg "found ok version of APPLE CLANG: $CFG_OSX_CLANG_VERSION"
1041 err "bad APPLE CLANG version: $CFG_OSX_CLANG_VERSION, need >=7.0"
1045 case $CFG_CLANG_VERSION in
1046 (3.2* | 3.3* | 3.4* | 3.5* | 3.6* | 3.7* | 3.8* | 3.9*)
1047 step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
1050 err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn"
1063 if [ -n "$CFG_ENABLE_CCACHE" ]
1065 if [ -z "$CFG_CCACHE" ]
1067 err "ccache requested but not found"
1070 CFG_CC="ccache $CFG_CC"
1073 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1075 err "either clang or gcc is required"
1078 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1079 # point in the script; after this point, script logic should inspect
1080 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1082 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS,LDFLAGS}
1090 # stdc++ name in use
1091 # used to manage non-standard name (on OpenBSD for example)
1092 program_transform_name=$($CFG_CC -v 2>&1 | sed -n "s/.*--program-transform-name='\([^']*\)'.*/\1/p")
1093 CFG_STDCPP_NAME=$(echo "stdc++" | sed "${program_transform_name}")
1094 putvar CFG_STDCPP_NAME
1096 # a little post-processing of various config values
1097 CFG_PREFIX=${CFG_PREFIX%/}
1098 CFG_MANDIR=${CFG_MANDIR%/}
1099 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1100 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1101 CFG_SUPPORTED_TARGET=""
1102 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1103 CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1106 # copy build-triples to host-triples so that builds are a subset of hosts
1108 for i in $CFG_BUILD $CFG_HOST;
1110 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1114 # copy host-triples to target-triples so that hosts are a subset of targets
1116 for i in $CFG_HOST $CFG_TARGET;
1118 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1122 # check target-specific tool-chains
1123 for i in $CFG_TARGET
1126 for j in $CFG_SUPPORTED_TARGET
1134 if [ $L_CHECK = false ]
1136 err "unsupported target triples \"$i\" found"
1141 upper_snake_target=$(echo "$i" | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
1142 eval ndk=\$"CFG_${upper_snake_target}_NDK"
1145 ndk=$CFG_ANDROID_CROSS_PATH
1146 eval "CFG_${upper_snake_target}_NDK"=$CFG_ANDROID_CROSS_PATH
1147 warn "generic/default Android NDK option is deprecated (use --$i-ndk option instead)"
1150 # Perform a basic sanity check of the NDK
1151 for android_ndk_tool in "$ndk/bin/$i-gcc" "$ndk/bin/$i-g++" "$ndk/bin/$i-ar"
1153 if [ ! -f $android_ndk_tool ]
1155 err "NDK tool $android_ndk_tool not found (bad or missing --$i-ndk option?)"
1160 if [ -z "$CFG_NACL_CROSS_PATH" ]
1162 err "I need the NaCl SDK path! (use --nacl-cross-path)"
1166 if [ $CFG_OSTYPE != apple-darwin ]
1168 err "The iOS target is only supported on Mac OS X"
1174 if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
1176 err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
1181 # There are some MSYS python builds which will auto-translate
1182 # windows-style paths to MSYS-style paths in Python itself.
1183 # Unfortunately this breaks LLVM's build system as somewhere along
1184 # the line LLVM prints a path into a file from Python and then CMake
1185 # later tries to interpret that path. If Python prints a MSYS path
1186 # and CMake tries to use it as a Windows path, you're gonna have a
1189 # Consequently here we try to detect when that happens and print an
1191 if $CFG_PYTHON -c 'import sys; print sys.argv[1]' `pwd` | grep '^/' > /dev/null
1195 python is silently translating windows paths to MSYS paths \
1196 and the build will fail if this python is used.
1198 Either an official python install must be used or an \
1199 alternative python package in MinGW must be used.
1201 If you are building under msys2 try installing the mingw-w64-x86_64-python2 \
1202 package instead of python2:
1204 $ pacman -R python2 && pacman -S mingw-w64-x86_64-python2
1208 # MSVC requires cmake because that's how we're going to build LLVM
1209 probe_need CFG_CMAKE cmake
1211 # There are three builds of cmake on windows: MSVC, MinGW and Cygwin
1212 # The Cygwin build does not have generators for Visual Studio, so
1213 # detect that here and error.
1214 if ! "$CFG_CMAKE" --help | sed -n '/^Generators/,$p' | grep 'Visual Studio' > /dev/null
1218 cmake does not support Visual Studio generators.
1220 This is likely due to it being an msys/cygwin build of cmake, \
1221 rather than the required windows version, built using MinGW \
1224 If you are building under msys2 try installing the mingw-w64-x86_64-cmake \
1225 package instead of cmake:
1227 $ pacman -R cmake && pacman -S mingw-w64-x86_64-cmake
1231 # Use the REG program to figure out where VS is installed
1232 # We need to figure out where cl.exe and link.exe are, so we do some
1233 # munging and some probing here. We also look for the default
1234 # INCLUDE and LIB variables for MSVC so we can set those in the
1235 # build system as well.
1236 install=$(cmd //c reg QUERY \
1237 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0' \
1239 if [ -z "$install" ]; then
1240 install=$(cmd //c reg QUERY \
1241 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0' \
1244 need_ok "couldn't find visual studio install root"
1245 CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
1246 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1247 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1248 putvar CFG_MSVC_ROOT
1260 err "can only target x86 targets for MSVC"
1263 bindir="${CFG_MSVC_ROOT}/VC/bin"
1264 if [ -n "$msvc_part" ]; then
1265 bindir="$bindir/$msvc_part"
1267 eval CFG_MSVC_BINDIR_$bits="\"$bindir\""
1268 eval CFG_MSVC_CL_$bits="\"$bindir/cl.exe\""
1269 eval CFG_MSVC_LIB_$bits="\"$bindir/lib.exe\""
1270 eval CFG_MSVC_LINK_$bits="\"$bindir/link.exe\""
1272 vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
1273 include_path=$(cmd //V:ON //c "$vcvarsall" $msvc_part \& echo !INCLUDE!)
1274 need_ok "failed to learn about MSVC's INCLUDE"
1275 lib_path=$(cmd //V:ON //c "$vcvarsall" $msvc_part \& echo !LIB!)
1276 need_ok "failed to learn about MSVC's LIB"
1278 eval CFG_MSVC_INCLUDE_PATH_${bits}="\"$include_path\""
1279 eval CFG_MSVC_LIB_PATH_${bits}="\"$lib_path\""
1281 putvar CFG_MSVC_BINDIR_${bits}
1282 putvar CFG_MSVC_CL_${bits}
1283 putvar CFG_MSVC_LIB_${bits}
1284 putvar CFG_MSVC_LINK_${bits}
1285 putvar CFG_MSVC_INCLUDE_PATH_${bits}
1286 putvar CFG_MSVC_LIB_PATH_${bits}
1294 if [ -n "$CFG_PERF" ]
1296 HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1297 if [ -z "$HAVE_PERF_LOGFD" ];
1299 CFG_PERF_WITH_LOGFD=1
1300 putvar CFG_PERF_WITH_LOGFD
1304 if [ -z "$CFG_ENABLE_RUSTBUILD" ]; then
1306 step_msg "making directories"
1309 doc doc/std doc/extra \
1322 make_dir $t/rustllvm
1325 for t in $CFG_TARGET
1330 make_dir $t/rt/stage$s
1331 make_dir $t/rt/jemalloc
1332 make_dir $t/rt/compiler-rt
1335 arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1337 make_dir $t/rt/stage$s/$i
1344 for t in $CFG_TARGET
1346 # host bin dir stage0
1347 make_dir $h/stage0/bin
1349 # host lib dir stage0
1350 make_dir $h/stage0/lib
1352 # host test dir stage0
1353 make_dir $h/stage0/test
1355 # target bin dir stage0
1356 make_dir $h/stage0/lib/rustlib/$t/bin
1358 # target lib dir stage0
1359 make_dir $h/stage0/lib/rustlib/$t/lib
1364 make_dir $h/stage$i/bin
1367 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1370 make_dir $h/stage$i/test
1373 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1376 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1380 make_dir $h/test/run-pass
1381 make_dir $h/test/run-pass-valgrind
1382 make_dir $h/test/run-pass-fulldeps
1383 make_dir $h/test/run-fail
1384 make_dir $h/test/run-fail-fulldeps
1385 make_dir $h/test/compile-fail
1386 make_dir $h/test/parse-fail
1387 make_dir $h/test/compile-fail-fulldeps
1388 make_dir $h/test/bench
1389 make_dir $h/test/perf
1390 make_dir $h/test/pretty
1391 make_dir $h/test/debuginfo-gdb
1392 make_dir $h/test/debuginfo-lldb
1393 make_dir $h/test/codegen
1394 make_dir $h/test/codegen-units
1395 make_dir $h/test/rustdoc
1400 # Configure submodules
1401 step_msg "configuring submodules"
1403 # Have to be in the top of src directory for this
1404 if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ] && [ -z $CFG_ENABLE_RUSTBUILD ]
1408 msg "git: submodule sync"
1409 "${CFG_GIT}" submodule sync
1411 msg "git: submodule init"
1412 "${CFG_GIT}" submodule init
1414 # Disable submodules that we're not using
1415 if [ -n "${CFG_LLVM_ROOT}" ]; then
1416 msg "git: submodule deinit src/llvm"
1417 "${CFG_GIT}" submodule deinit src/llvm
1419 if [ -n "${CFG_JEMALLOC_ROOT}" ]; then
1420 msg "git: submodule deinit src/jemalloc"
1421 "${CFG_GIT}" submodule deinit src/jemalloc
1424 msg "git: submodule update"
1425 "${CFG_GIT}" submodule update
1426 need_ok "git failed"
1428 msg "git: submodule foreach sync"
1429 "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1430 need_ok "git failed"
1432 msg "git: submodule foreach update"
1433 "${CFG_GIT}" submodule update --recursive
1434 need_ok "git failed"
1436 # NB: this is just for the sake of getting the submodule SHA1 values
1437 # and status written into the build log.
1438 msg "git: submodule status"
1439 "${CFG_GIT}" submodule status --recursive
1441 msg "git: submodule clobber"
1442 "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1443 need_ok "git failed"
1444 "${CFG_GIT}" submodule foreach --recursive git checkout .
1445 need_ok "git failed"
1450 # Configure llvm, only if necessary
1451 step_msg "looking at LLVM"
1452 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1463 if [ -n "$CFG_ENABLE_RUSTBUILD" ]
1465 msg "not configuring LLVM, rustbuild in use"
1467 elif [ -z $CFG_LLVM_ROOT ]
1469 LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1470 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1472 LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized"
1473 # Just use LLVM straight from its build directory to
1474 # avoid 'make install' time
1475 LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1477 LLVM_DBG_OPTS="--enable-optimized"
1478 LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1480 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1482 LLVM_ASSERTION_OPTS="--disable-assertions"
1484 LLVM_ASSERTION_OPTS="--enable-assertions"
1486 # Apparently even if we request assertions be enabled for MSVC,
1487 # LLVM's CMake build system ignore this and outputs in `Release`
1489 if [ ${is_msvc} -eq 0 ]; then
1490 LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts
1494 msg "not reconfiguring LLVM, external LLVM root"
1495 # The user is using their own LLVM
1497 LLVM_INST_DIR=$CFG_LLVM_ROOT
1499 # Check that LLVm FileCheck is available. Needed for the tests
1500 need_cmd $LLVM_INST_DIR/bin/FileCheck
1503 if [ ${do_reconfigure} -ne 0 ]
1505 # because git is hilarious, it might have put the module index
1506 # in a couple places.
1507 index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1508 index2="${CFG_SRC_DIR}src/llvm/.git/index"
1509 for index in ${index1} ${index2}
1511 config_status="${LLVM_BUILD_DIR}/config.status"
1512 if test -e ${index} -a \
1513 -e ${config_status} -a \
1514 ${config_status} -nt ${index}
1516 msg "not reconfiguring LLVM, config.status is fresh"
1522 # We need the generator later on for compiler-rt even if LLVM's not built
1523 if [ ${is_msvc} -ne 0 ]
1525 case "$CFG_MSVC_ROOT" in
1527 generator="Visual Studio 14 2015"
1530 generator="Visual Studio 12 2013"
1533 err "can't determine generator for LLVM cmake"
1538 generator="$generator Win64"
1543 err "can only build LLVM for x86 platforms"
1546 CFG_CMAKE_GENERATOR=$generator
1547 putvar CFG_CMAKE_GENERATOR
1550 if [ ${do_reconfigure} -ne 0 ] && [ ${is_msvc} -ne 0 ]
1552 msg "configuring LLVM for $t with cmake"
1554 CMAKE_ARGS="-DLLVM_INCLUDE_TESTS=OFF"
1555 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then
1556 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Debug"
1558 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release"
1560 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1562 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=OFF"
1564 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=ON"
1567 msg "configuring LLVM with:"
1570 (cd $LLVM_BUILD_DIR && "$CFG_CMAKE" $CFG_LLVM_SRC_DIR \
1571 -G "$CFG_CMAKE_GENERATOR" \
1573 need_ok "LLVM cmake configure failed"
1576 if [ ${do_reconfigure} -ne 0 ] && [ ${is_msvc} -eq 0 ]
1578 # LLVM's configure doesn't recognize the new Windows triples yet
1579 gnu_t=$(to_gnu_triple $t)
1581 msg "configuring LLVM for $gnu_t"
1583 LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
1584 LLVM_BUILD="--build=$gnu_t"
1585 LLVM_HOST="--host=$gnu_t"
1586 LLVM_TARGET="--target=$gnu_t"
1588 # Disable unused LLVM features
1589 LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none"
1590 # Disable term-info, linkage of which comes in multiple forms,
1591 # making our snapshots incompatible (#9334)
1592 LLVM_OPTS="$LLVM_OPTS --disable-terminfo"
1593 # Try to have LLVM pull in as few dependencies as possible (#9397)
1594 LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi"
1596 # Use win32 native thread/lock apis instead of pthread wrapper.
1597 # (llvm's configure tries to find pthread first, so we have to disable it explicitly.)
1598 # Also note that pthreads works badly on mingw-w64 systems: #8996
1599 case "$CFG_BUILD" in
1601 LLVM_OPTS="$LLVM_OPTS --disable-pthreads"
1607 LLVM_CXX_32="ccache clang++ -Qunused-arguments"
1608 LLVM_CC_32="ccache clang -Qunused-arguments"
1610 LLVM_CXX_64="ccache clang++ -Qunused-arguments"
1611 LLVM_CC_64="ccache clang -Qunused-arguments"
1614 LLVM_CXX_32="clang++ -Qunused-arguments"
1615 LLVM_CC_32="clang -Qunused-arguments"
1617 LLVM_CXX_64="clang++ -Qunused-arguments"
1618 LLVM_CC_64="clang -Qunused-arguments"
1621 LLVM_CXX_32="ccache g++"
1622 LLVM_CC_32="ccache gcc"
1624 LLVM_CXX_64="ccache g++"
1625 LLVM_CC_64="ccache gcc"
1636 msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1637 if [ -n "$CFG_ENABLE_CCACHE" ]
1639 if [ -z "$CFG_CCACHE" ]
1641 err "ccache requested but not found"
1644 LLVM_CXX_32="ccache $CXX"
1645 LLVM_CC_32="ccache $CC"
1647 LLVM_CXX_64="ccache $CXX"
1648 LLVM_CC_64="ccache $CC"
1660 case "$CFG_CPUTYPE" in
1662 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1663 LLVM_CC_32="$LLVM_CC_32 -m32"
1665 LLVM_CFLAGS_32="-m32"
1666 LLVM_CXXFLAGS_32="-m32"
1667 LLVM_LDFLAGS_32="-m32"
1673 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1674 LLVM_CC_32="$LLVM_CC_32 -m32"
1688 if echo $t | grep -q x86_64
1690 LLVM_CXX=$LLVM_CXX_64
1692 LLVM_CFLAGS=$LLVM_CFLAGS_64
1693 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1694 LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1696 LLVM_CXX=$LLVM_CXX_32
1698 LLVM_CFLAGS=$LLVM_CFLAGS_32
1699 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1700 LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1705 CFLAGS="$CFLAGS $LLVM_CFLAGS"
1706 CXXFLAGS="$CXXFLAGS $LLVM_CXXFLAGS"
1707 LDFLAGS="$LDFLAGS $LLVM_LDFLAGS"
1709 if [ "$CFG_USING_LIBCPP" != "0" ]; then
1710 LLVM_OPTS="$LLVM_OPTS --enable-libcpp"
1713 LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \
1714 $LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON"
1716 msg "configuring LLVM with:"
1726 case $CFG_SRC_DIR in
1727 /* | [a-z]:* | [A-Z]:*)
1728 ${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS
1731 ${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \
1735 need_ok "LLVM configure failed"
1740 # Construct variables for LLVM build and install directories for
1741 # each target. These will be named
1742 # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1743 # target_triple will be converted to underscore, because bash
1744 # variables can't contain hyphens. The makefile will then have to
1746 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1747 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1748 eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1749 eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1753 step_msg "writing configuration"
1756 putvar CFG_SRC_DIR_RELATIVE
1757 putvar CFG_BUILD_DIR
1760 putvar CFG_CONFIGURE_ARGS
1764 putvar CFG_LIBDIR_RELATIVE
1765 putvar CFG_DISABLE_MANAGE_SUBMODULES
1766 putvar CFG_AARCH64_LINUX_ANDROID_NDK
1767 putvar CFG_ARM_LINUX_ANDROIDEABI_NDK
1768 putvar CFG_I686_LINUX_ANDROID_NDK
1769 putvar CFG_NACL_CROSS_PATH
1771 putvar CFG_USING_LIBCPP
1773 # Avoid spurious warnings from clang by feeding it original source on
1774 # ccache-miss rather than preprocessed input.
1775 if [ -n "$CFG_ENABLE_CCACHE" ] && [ -n "$CFG_USING_CLANG" ]
1778 putvar CFG_CCACHE_CPP2
1781 if [ -n "$CFG_ENABLE_CCACHE" ]
1783 CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1784 putvar CFG_CCACHE_BASEDIR
1788 putvar CFG_LLVM_SRC_DIR
1792 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1793 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1794 putvar $CFG_LLVM_BUILD_DIR
1795 putvar $CFG_LLVM_INST_DIR
1798 if [ -n "$CFG_ENABLE_RUSTBUILD" ]
1800 INPUT_MAKEFILE=src/bootstrap/mk/Makefile.in
1802 INPUT_MAKEFILE=Makefile.in
1806 copy_if_changed ${CFG_SRC_DIR}${INPUT_MAKEFILE} ./Makefile
1807 move_if_changed config.tmp config.mk
1811 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1812 step_msg "configured in release mode. for development consider --enable-debug"
1817 msg "run \`make help\`"