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 local-rebuild 0 "use an installed rustc matching the current version, for rebuilds"
603 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
604 opt rpath 1 "build rpaths into rustc itself"
605 opt stage0-landing-pads 1 "enable landing pads during bootstrap with stage0"
606 # This is used by the automation to produce single-target nightlies
607 opt dist-host-only 0 "only install bins for the host architecture"
608 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
609 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
610 opt rustbuild 0 "use the rust and cargo based build system"
611 opt orbit 0 "get MIR where it belongs - everywhere; most importantly, in orbit"
612 opt codegen-tests 1 "run the src/test/codegen tests"
613 opt option-checking 1 "complain about unrecognized options in this configure script"
615 # Optimization and debugging options. These may be overridden by the release channel, etc.
616 opt_nosave optimize 1 "build optimized rust code"
617 opt_nosave optimize-cxx 1 "build optimized C++ code"
618 opt_nosave optimize-llvm 1 "build optimized LLVM"
619 opt_nosave llvm-assertions 0 "build LLVM with assertions"
620 opt_nosave debug-assertions 0 "build with debugging assertions"
621 opt_nosave debuginfo 0 "build with debugger metadata"
622 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
624 valopt localstatedir "/var/lib" "local state directory"
625 valopt sysconfdir "/etc" "install system configuration files"
627 valopt datadir "${CFG_PREFIX}/share" "install data"
628 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
629 valopt llvm-root "" "set LLVM root"
630 valopt python "" "set path to python"
631 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
632 valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
633 valopt android-cross-path "" "Android NDK standalone path (deprecated)"
634 valopt i686-linux-android-ndk "" "i686-linux-android NDK standalone path"
635 valopt arm-linux-androideabi-ndk "" "arm-linux-androideabi NDK standalone path"
636 valopt armv7-linux-androideabi-ndk "" "armv7-linux-androideabi NDK standalone path"
637 valopt aarch64-linux-android-ndk "" "aarch64-linux-android NDK standalone path"
638 valopt nacl-cross-path "" "NaCl SDK path (Pepper Canary is recommended). Must be absolute!"
639 valopt release-channel "dev" "the name of the release channel to build"
640 valopt musl-root "/usr/local" "MUSL root installation directory"
641 valopt extra-filename "" "Additional data that is hashed and passed to the -C extra-filename flag"
643 # Used on systems where "cc" and "ar" are unavailable
644 valopt default-linker "cc" "the default linker"
645 valopt default-ar "ar" "the default ar"
647 # Many of these are saved below during the "writing configuration" step
648 # (others are conditionally saved).
649 opt_nosave manage-submodules 1 "let the build manage the git submodules"
650 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
651 opt_nosave jemalloc 1 "build liballoc with jemalloc"
652 opt elf-tls 1 "elf thread local storage on platforms where supported"
654 valopt_nosave prefix "/usr/local" "set installation prefix"
655 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
656 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
657 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
658 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
660 # On Windows this determines root of the subtree for target libraries.
661 # Host runtime libs always go to 'bin'.
662 valopt libdir "${CFG_PREFIX}/lib" "install libraries"
664 case "$CFG_LIBDIR" in
665 "$CFG_PREFIX"/*) CAT_INC=2;;
666 "$CFG_PREFIX"*) CAT_INC=1;;
668 err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
671 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
680 if [ -z "$CFG_DISABLE_OPTION_CHECKING" ]
682 step_msg "validating $CFG_SELF args"
686 # Validate the release channel, and configure options
687 case "$CFG_RELEASE_CHANNEL" in
689 msg "overriding settings for $CFG_RELEASE_CHANNEL"
690 CFG_ENABLE_LLVM_ASSERTIONS=1
695 err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
699 # Adjust perf and debug options for debug mode
700 if [ -n "$CFG_ENABLE_DEBUG" ]; then
701 msg "debug mode enabled, setting performance options"
702 if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
703 msg "optimization not explicitly enabled, disabling optimization"
704 CFG_DISABLE_OPTIMIZE=1
705 CFG_DISABLE_OPTIMIZE_CXX=1
708 # Set following variables to 1 unless setting already provided
709 enable_if_not_disabled debug-assertions
710 enable_if_not_disabled debug-jemalloc
711 enable_if_not_disabled debuginfo
712 enable_if_not_disabled llvm-assertions
715 # OK, now write the debugging options
716 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
717 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
718 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
719 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
720 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
721 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
722 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
724 if [ -n "$CFG_ENABLE_ORBIT" ]; then putvar CFG_ENABLE_ORBIT; fi
726 step_msg "looking for build programs"
728 probe_need CFG_CURLORWGET curl wget
729 if [ -z "$CFG_PYTHON_PROVIDED" ]; then
730 probe_need CFG_PYTHON python2.7 python2 python
733 python_version=$($CFG_PYTHON -V 2>&1)
734 if [ $(echo $python_version | grep -c '^Python 2\.7') -ne 1 ]; then
735 err "Found $python_version, but Python 2.7 is required"
738 # If we have no git directory then we are probably a tarball distribution
739 # and shouldn't attempt to load submodules
740 if [ ! -e ${CFG_SRC_DIR}.git ]
743 msg "git: no git directory. disabling submodules"
744 CFG_DISABLE_MANAGE_SUBMODULES=1
746 probe_need CFG_GIT git
749 # Use `md5sum` on GNU platforms, or `md5 -q` on BSD
751 probe CFG_MD5SUM md5sum
754 CFG_HASH_COMMAND="$CFG_MD5 -q | cut -c 1-8"
755 elif [ -n "$CFG_MD5SUM" ]
757 CFG_HASH_COMMAND="$CFG_MD5SUM | cut -c 1-8"
759 err 'could not find one of: md5 md5sum'
761 putvar CFG_HASH_COMMAND
763 probe CFG_CLANG clang++
764 probe CFG_CCACHE ccache
767 probe CFG_VALGRIND valgrind
770 probe CFG_ANTLR4 antlr4
773 probe CFG_BISON bison
777 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
778 # installed. Since `javac` is only used if `antlr4` is available,
779 # probe for it only in this case.
780 if [ -n "$CFG_ANTLR4" ]
782 probe CFG_JAVAC javac
785 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
786 # only disabled if you opt out.
787 if [ -z "$CFG_VALGRIND" ]
789 # If the user has explicitly asked for valgrind tests, then fail
790 if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
792 err "No valgrind present, but valgrind tests explicitly requested"
794 CFG_DISABLE_VALGRIND_RPASS=1
795 putvar CFG_DISABLE_VALGRIND_RPASS
801 # Store GDB's version
802 CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
803 putvar CFG_GDB_VERSION
806 if [ -n "$CFG_LLDB" ]
808 # Store LLDB's version
809 CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
810 putvar CFG_LLDB_VERSION
812 # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
813 # LLDB via the -P commandline options.
814 if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
816 CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
818 # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
819 if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
821 CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
824 putvar CFG_LLDB_PYTHON_DIR
828 # LLDB tests on OSX require /usr/bin/python, not something like Homebrew's
829 # /usr/local/bin/python. We're loading a compiled module for LLDB tests which is
830 # only compatible with the system.
833 CFG_LLDB_PYTHON=/usr/bin/python
836 CFG_LLDB_PYTHON=$CFG_PYTHON
839 putvar CFG_LLDB_PYTHON
841 step_msg "looking for target specific programs"
846 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
851 # --enable-local-rebuild implies --enable-local-rust too
852 if [ -n "$CFG_ENABLE_LOCAL_REBUILD" ]
854 if [ -z "$CFG_ENABLE_LOCAL_RUST" ]
856 CFG_ENABLE_LOCAL_RUST=1
857 putvar CFG_ENABLE_LOCAL_RUST
861 if [ -n "$CFG_ENABLE_LOCAL_RUST" ]
863 system_rustc=$(which rustc)
864 if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
866 : # everything already configured
867 elif [ -n "$system_rustc" ]
869 # we assume that rustc is in a /bin directory
870 CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
872 err "no local rust to use"
875 CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
879 step_msg "failure while running $CMD --version"
882 step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
883 putvar CFG_LOCAL_RUST_ROOT
886 # Force bitrig to build with clang; gcc doesn't like us there
887 if [ $CFG_OSTYPE = unknown-bitrig ]
889 step_msg "on Bitrig, forcing use of clang"
893 # default gcc version under OpenBSD maybe too old, try using egcc, which is a
894 # gcc version from ports
895 if [ $CFG_OSTYPE = unknown-openbsd ]
897 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
898 step_msg "older GCC found, try with egcc instead"
900 # probe again but using egcc
903 # and use egcc/eg++ for CC/CXX too if it was found
904 # (but user setting has priority)
905 if [ -n "$CFG_GCC" ]; then
912 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
913 # system, so if we find that gcc is clang, we should just use clang directly.
914 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
916 CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
919 step_msg "on OS X >=10.9, forcing use of clang"
922 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
923 step_msg "older GCC found, using clang instead"
926 # on OS X, with xcode 5 and newer, certain developers may have
927 # cc, gcc and g++ point to a mixture of clang and gcc
928 # if so, this will create very strange build errors
929 # this last stanza is to detect some such problems and save the future rust
930 # contributor some time solving that issue.
931 # this detection could be generalized to other OSes aside from OS X
932 # but the issue seems most likely to happen on OS X
935 $1 --version 2> /dev/null | grep -q $2
937 # check that gcc, cc and g++ all point to the same compiler.
938 # note that for xcode 5, g++ points to clang, not clang++
939 if !((chk_cc gcc clang && chk_cc g++ clang) ||
940 (chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then
941 err "the gcc and g++ in your path point to different compilers.
942 Check which versions are in your path with gcc --version and g++ --version.
943 To resolve this problem, either fix your PATH or run configure with --enable-clang"
950 # If the clang isn't already enabled, check for GCC, and if it is missing, turn
951 # on clang as a backup.
952 if [ -z "$CFG_ENABLE_CLANG" ]
954 CFG_GCC_VERSION=$("$CFG_GCC" --version 2>&1)
957 step_msg "GCC not installed, will try using Clang"
962 # Okay, at this point, we have made up our minds about whether we are
963 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
964 if [ -n "$CFG_ENABLE_CLANG" ]
966 putvar CFG_ENABLE_CLANG
969 if [ -z "$CFG_DISABLE_LIBCPP" -a -n "$CFG_ENABLE_CLANG" ]
976 # Same with jemalloc. save the setting here.
977 if [ -n "$CFG_DISABLE_JEMALLOC" ]
979 putvar CFG_DISABLE_JEMALLOC
982 if [ -n "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
984 step_msg "using custom LLVM at $CFG_LLVM_ROOT"
986 LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
987 LLVM_VERSION=$($LLVM_CONFIG --version)
989 case $LLVM_VERSION in
991 msg "found ok version of LLVM: $LLVM_VERSION"
994 err "bad LLVM version: $LLVM_VERSION, need >=3.6"
999 # Even when the user overrides the choice of CC, still try to detect
1000 # clang to disable some clang-specific warnings. We here draw a
1001 # distinction between:
1003 # CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
1004 # CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
1006 # This distinction is important because there are some safeguards we
1007 # would prefer to skip when merely CFG_USING_CLANG is set; but when
1008 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
1009 # running such safeguards.
1013 msg "skipping compiler inference steps; using provided CC=$CC"
1016 CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
1019 step_msg "note, user-provided CC looks like clang; CC=$CC."
1021 putvar CFG_USING_CLANG
1024 if [ -n "$CFG_ENABLE_CLANG" ]
1026 if [ -z "$CFG_CLANG" ]
1028 err "clang requested but not found"
1032 putvar CFG_USING_CLANG
1038 if [ -n "$CFG_ENABLE_CLANG" ]
1042 CFG_CLANG_REPORTED_VERSION=$($CFG_CC --version | grep version)
1044 if echo $CFG_CLANG_REPORTED_VERSION | grep -q "(based on LLVM "; then
1045 CFG_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*(based on LLVM \(.*\))/\1/')
1046 elif echo $CFG_CLANG_REPORTED_VERSION | grep -q "Apple LLVM"; then
1047 CFG_OSX_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*version \(.*\) .*/\1/')
1049 CFG_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*version \(.*\) .*/\1/')
1052 if [ -n "$CFG_OSX_CLANG_VERSION" ]
1054 case $CFG_OSX_CLANG_VERSION in
1055 (7.0* | 7.1* | 7.2* | 7.3*)
1056 step_msg "found ok version of APPLE CLANG: $CFG_OSX_CLANG_VERSION"
1059 err "bad APPLE CLANG version: $CFG_OSX_CLANG_VERSION, need >=7.0"
1063 case $CFG_CLANG_VERSION in
1064 (3.2* | 3.3* | 3.4* | 3.5* | 3.6* | 3.7* | 3.8* | 3.9*)
1065 step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
1068 err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn"
1081 if [ -n "$CFG_ENABLE_CCACHE" ]
1083 if [ -z "$CFG_CCACHE" ]
1085 err "ccache requested but not found"
1088 CFG_CC="ccache $CFG_CC"
1091 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1093 err "either clang or gcc is required"
1096 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1097 # point in the script; after this point, script logic should inspect
1098 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1100 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS,LDFLAGS}
1108 # stdc++ name in use
1109 # used to manage non-standard name (on OpenBSD for example)
1110 program_transform_name=$($CFG_CC -v 2>&1 | sed -n "s/.*--program-transform-name='\([^']*\)'.*/\1/p")
1111 CFG_STDCPP_NAME=$(echo "stdc++" | sed "${program_transform_name}")
1112 putvar CFG_STDCPP_NAME
1114 # a little post-processing of various config values
1115 CFG_PREFIX=${CFG_PREFIX%/}
1116 CFG_MANDIR=${CFG_MANDIR%/}
1117 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1118 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1119 CFG_SUPPORTED_TARGET=""
1120 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1121 CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1124 # copy build-triples to host-triples so that builds are a subset of hosts
1126 for i in $CFG_BUILD $CFG_HOST;
1128 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1132 # copy host-triples to target-triples so that hosts are a subset of targets
1134 for i in $CFG_HOST $CFG_TARGET;
1136 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1140 # check target-specific tool-chains
1141 for i in $CFG_TARGET
1144 for j in $CFG_SUPPORTED_TARGET
1152 if [ $L_CHECK = false ]
1154 err "unsupported target triples \"$i\" found"
1160 armv7-linux-androideabi)
1161 cmd_prefix="arm-linux-androideabi"
1168 upper_snake_target=$(echo "$i" | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
1169 eval ndk=\$"CFG_${upper_snake_target}_NDK"
1172 ndk=$CFG_ANDROID_CROSS_PATH
1173 eval "CFG_${upper_snake_target}_NDK"=$CFG_ANDROID_CROSS_PATH
1174 warn "generic/default Android NDK option is deprecated (use --$i-ndk option instead)"
1177 # Perform a basic sanity check of the NDK
1178 for android_ndk_tool in "$ndk/bin/$cmd_prefix-gcc" "$ndk/bin/$cmd_prefix-g++" "$ndk/bin/$cmd_prefix-ar"
1180 if [ ! -f $android_ndk_tool ]
1182 err "NDK tool $android_ndk_tool not found (bad or missing --$i-ndk option?)"
1187 if [ -z "$CFG_NACL_CROSS_PATH" ]
1189 err "I need the NaCl SDK path! (use --nacl-cross-path)"
1193 if [ $CFG_OSTYPE != apple-darwin ]
1195 err "The iOS target is only supported on Mac OS X"
1201 if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
1203 err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
1208 # There are some MSYS python builds which will auto-translate
1209 # windows-style paths to MSYS-style paths in Python itself.
1210 # Unfortunately this breaks LLVM's build system as somewhere along
1211 # the line LLVM prints a path into a file from Python and then CMake
1212 # later tries to interpret that path. If Python prints a MSYS path
1213 # and CMake tries to use it as a Windows path, you're gonna have a
1216 # Consequently here we try to detect when that happens and print an
1218 if $CFG_PYTHON -c 'import sys; print sys.argv[1]' `pwd` | grep '^/' > /dev/null
1222 python is silently translating windows paths to MSYS paths \
1223 and the build will fail if this python is used.
1225 Either an official python install must be used or an \
1226 alternative python package in MinGW must be used.
1228 If you are building under msys2 try installing the mingw-w64-x86_64-python2 \
1229 package instead of python2:
1231 $ pacman -R python2 && pacman -S mingw-w64-x86_64-python2
1235 # MSVC requires cmake because that's how we're going to build LLVM
1236 probe_need CFG_CMAKE cmake
1238 # There are three builds of cmake on windows: MSVC, MinGW and Cygwin
1239 # The Cygwin build does not have generators for Visual Studio, so
1240 # detect that here and error.
1241 if ! "$CFG_CMAKE" --help | sed -n '/^Generators/,$p' | grep 'Visual Studio' > /dev/null
1245 cmake does not support Visual Studio generators.
1247 This is likely due to it being an msys/cygwin build of cmake, \
1248 rather than the required windows version, built using MinGW \
1251 If you are building under msys2 try installing the mingw-w64-x86_64-cmake \
1252 package instead of cmake:
1254 $ pacman -R cmake && pacman -S mingw-w64-x86_64-cmake
1258 # Use the REG program to figure out where VS is installed
1259 # We need to figure out where cl.exe and link.exe are, so we do some
1260 # munging and some probing here. We also look for the default
1261 # INCLUDE and LIB variables for MSVC so we can set those in the
1262 # build system as well.
1263 install=$(cmd //c reg QUERY \
1264 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0' \
1266 if [ -z "$install" ]; then
1267 install=$(cmd //c reg QUERY \
1268 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0' \
1271 need_ok "couldn't find visual studio install root"
1272 CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
1273 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1274 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1275 putvar CFG_MSVC_ROOT
1287 err "can only target x86 targets for MSVC"
1290 bindir="${CFG_MSVC_ROOT}/VC/bin"
1291 if [ -n "$msvc_part" ]; then
1292 bindir="$bindir/$msvc_part"
1294 eval CFG_MSVC_BINDIR_$bits="\"$bindir\""
1295 eval CFG_MSVC_CL_$bits="\"$bindir/cl.exe\""
1296 eval CFG_MSVC_LIB_$bits="\"$bindir/lib.exe\""
1297 eval CFG_MSVC_LINK_$bits="\"$bindir/link.exe\""
1299 vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
1300 include_path=$(cmd //V:ON //c "$vcvarsall" $msvc_part \& echo !INCLUDE!)
1301 need_ok "failed to learn about MSVC's INCLUDE"
1302 lib_path=$(cmd //V:ON //c "$vcvarsall" $msvc_part \& echo !LIB!)
1303 need_ok "failed to learn about MSVC's LIB"
1305 eval CFG_MSVC_INCLUDE_PATH_${bits}="\"$include_path\""
1306 eval CFG_MSVC_LIB_PATH_${bits}="\"$lib_path\""
1308 putvar CFG_MSVC_BINDIR_${bits}
1309 putvar CFG_MSVC_CL_${bits}
1310 putvar CFG_MSVC_LIB_${bits}
1311 putvar CFG_MSVC_LINK_${bits}
1312 putvar CFG_MSVC_INCLUDE_PATH_${bits}
1313 putvar CFG_MSVC_LIB_PATH_${bits}
1321 if [ -n "$CFG_PERF" ]
1323 HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1324 if [ -z "$HAVE_PERF_LOGFD" ];
1326 CFG_PERF_WITH_LOGFD=1
1327 putvar CFG_PERF_WITH_LOGFD
1331 if [ -z "$CFG_ENABLE_RUSTBUILD" ]; then
1333 step_msg "making directories"
1336 doc doc/std doc/extra \
1349 make_dir $t/rustllvm
1352 for t in $CFG_TARGET
1357 make_dir $t/rt/stage$s
1358 make_dir $t/rt/jemalloc
1359 make_dir $t/rt/compiler-rt
1362 arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1364 make_dir $t/rt/stage$s/$i
1371 for t in $CFG_TARGET
1373 # host bin dir stage0
1374 make_dir $h/stage0/bin
1376 # host lib dir stage0
1377 make_dir $h/stage0/lib
1379 # host test dir stage0
1380 make_dir $h/stage0/test
1382 # target bin dir stage0
1383 make_dir $h/stage0/lib/rustlib/$t/bin
1385 # target lib dir stage0
1386 make_dir $h/stage0/lib/rustlib/$t/lib
1391 make_dir $h/stage$i/bin
1394 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1397 make_dir $h/stage$i/test
1400 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1403 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1407 make_dir $h/test/run-pass
1408 make_dir $h/test/run-pass-valgrind
1409 make_dir $h/test/run-pass-fulldeps
1410 make_dir $h/test/run-fail
1411 make_dir $h/test/run-fail-fulldeps
1412 make_dir $h/test/compile-fail
1413 make_dir $h/test/parse-fail
1414 make_dir $h/test/compile-fail-fulldeps
1415 make_dir $h/test/bench
1416 make_dir $h/test/perf
1417 make_dir $h/test/pretty
1418 make_dir $h/test/debuginfo-gdb
1419 make_dir $h/test/debuginfo-lldb
1420 make_dir $h/test/codegen
1421 make_dir $h/test/codegen-units
1422 make_dir $h/test/rustdoc
1427 # Configure submodules
1428 step_msg "configuring submodules"
1430 # Have to be in the top of src directory for this
1431 if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ] && [ -z $CFG_ENABLE_RUSTBUILD ]
1435 msg "git: submodule sync"
1436 "${CFG_GIT}" submodule sync
1438 msg "git: submodule init"
1439 "${CFG_GIT}" submodule init
1441 # Disable submodules that we're not using
1442 if [ -n "${CFG_LLVM_ROOT}" ]; then
1443 msg "git: submodule deinit src/llvm"
1444 "${CFG_GIT}" submodule deinit src/llvm
1446 if [ -n "${CFG_JEMALLOC_ROOT}" ]; then
1447 msg "git: submodule deinit src/jemalloc"
1448 "${CFG_GIT}" submodule deinit src/jemalloc
1451 msg "git: submodule update"
1452 "${CFG_GIT}" submodule update
1453 need_ok "git failed"
1455 msg "git: submodule foreach sync"
1456 "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1457 need_ok "git failed"
1459 msg "git: submodule foreach update"
1460 "${CFG_GIT}" submodule update --recursive
1461 need_ok "git failed"
1463 # NB: this is just for the sake of getting the submodule SHA1 values
1464 # and status written into the build log.
1465 msg "git: submodule status"
1466 "${CFG_GIT}" submodule status --recursive
1468 msg "git: submodule clobber"
1469 "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1470 need_ok "git failed"
1471 "${CFG_GIT}" submodule foreach --recursive git checkout .
1472 need_ok "git failed"
1477 # Do a sanity check that the submodule source exists. Because GitHub
1478 # automatically publishes broken tarballs that can't be disabled, and
1479 # people download them and try to use them.
1480 if [ ! -e "${CFG_SRC_DIR}/src/liblibc" ]; then
1481 err "some submodules are missing. Is this a broken tarball?
1483 If you downloaded this tarball from the GitHub release pages at
1484 https://github.com/rust-lang/rust/releases,
1485 then please delete it and instead download the source from
1486 https://www.rust-lang.org/downloads.html"
1490 # Configure llvm, only if necessary
1491 step_msg "looking at LLVM"
1492 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1503 if [ -n "$CFG_ENABLE_RUSTBUILD" ]
1505 msg "not configuring LLVM, rustbuild in use"
1507 elif [ -z $CFG_LLVM_ROOT ]
1509 LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1510 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1512 LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized"
1513 # Just use LLVM straight from its build directory to
1514 # avoid 'make install' time
1515 LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1517 LLVM_DBG_OPTS="--enable-optimized"
1518 LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1520 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1522 LLVM_ASSERTION_OPTS="--disable-assertions"
1524 LLVM_ASSERTION_OPTS="--enable-assertions"
1526 # Apparently even if we request assertions be enabled for MSVC,
1527 # LLVM's CMake build system ignore this and outputs in `Release`
1529 if [ ${is_msvc} -eq 0 ]; then
1530 LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts
1534 msg "not reconfiguring LLVM, external LLVM root"
1535 # The user is using their own LLVM
1537 LLVM_INST_DIR=$CFG_LLVM_ROOT
1539 # Check that LLVm FileCheck is available. Needed for the tests
1540 if [ -z "$CFG_DISABLE_CODEGEN_TESTS" ]; then
1541 need_cmd $LLVM_INST_DIR/bin/FileCheck
1545 if [ ${do_reconfigure} -ne 0 ]
1547 # because git is hilarious, it might have put the module index
1548 # in a couple places.
1549 index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1550 index2="${CFG_SRC_DIR}src/llvm/.git/index"
1551 for index in ${index1} ${index2}
1553 config_status="${LLVM_BUILD_DIR}/config.status"
1554 if test -e ${index} -a \
1555 -e ${config_status} -a \
1556 ${config_status} -nt ${index}
1558 msg "not reconfiguring LLVM, config.status is fresh"
1564 # We need the generator later on for compiler-rt even if LLVM's not built
1565 if [ ${is_msvc} -ne 0 ]
1567 case "$CFG_MSVC_ROOT" in
1569 generator="Visual Studio 14 2015"
1572 generator="Visual Studio 12 2013"
1575 err "can't determine generator for LLVM cmake"
1580 generator="$generator Win64"
1585 err "can only build LLVM for x86 platforms"
1588 CFG_CMAKE_GENERATOR=$generator
1589 putvar CFG_CMAKE_GENERATOR
1592 if [ ${do_reconfigure} -ne 0 ] && [ ${is_msvc} -ne 0 ]
1594 msg "configuring LLVM for $t with cmake"
1596 CMAKE_ARGS="-DLLVM_INCLUDE_TESTS=OFF"
1597 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then
1598 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Debug"
1600 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release"
1602 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1604 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=OFF"
1606 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=ON"
1609 msg "configuring LLVM with:"
1612 (cd $LLVM_BUILD_DIR && "$CFG_CMAKE" $CFG_LLVM_SRC_DIR \
1613 -G "$CFG_CMAKE_GENERATOR" \
1615 need_ok "LLVM cmake configure failed"
1618 if [ ${do_reconfigure} -ne 0 ] && [ ${is_msvc} -eq 0 ]
1620 # LLVM's configure doesn't recognize the new Windows triples yet
1621 gnu_t=$(to_gnu_triple $t)
1623 msg "configuring LLVM for $gnu_t"
1625 LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
1626 LLVM_BUILD="--build=$gnu_t"
1627 LLVM_HOST="--host=$gnu_t"
1628 LLVM_TARGET="--target=$gnu_t"
1630 # Disable unused LLVM features
1631 LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none"
1632 # Disable term-info, linkage of which comes in multiple forms,
1633 # making our snapshots incompatible (#9334)
1634 LLVM_OPTS="$LLVM_OPTS --disable-terminfo"
1635 # Try to have LLVM pull in as few dependencies as possible (#9397)
1636 LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi"
1638 # Use win32 native thread/lock apis instead of pthread wrapper.
1639 # (llvm's configure tries to find pthread first, so we have to disable it explicitly.)
1640 # Also note that pthreads works badly on mingw-w64 systems: #8996
1641 case "$CFG_BUILD" in
1643 LLVM_OPTS="$LLVM_OPTS --disable-pthreads"
1649 LLVM_CXX_32="ccache clang++ -Qunused-arguments"
1650 LLVM_CC_32="ccache clang -Qunused-arguments"
1652 LLVM_CXX_64="ccache clang++ -Qunused-arguments"
1653 LLVM_CC_64="ccache clang -Qunused-arguments"
1656 LLVM_CXX_32="clang++ -Qunused-arguments"
1657 LLVM_CC_32="clang -Qunused-arguments"
1659 LLVM_CXX_64="clang++ -Qunused-arguments"
1660 LLVM_CC_64="clang -Qunused-arguments"
1663 LLVM_CXX_32="ccache g++"
1664 LLVM_CC_32="ccache gcc"
1666 LLVM_CXX_64="ccache g++"
1667 LLVM_CC_64="ccache gcc"
1678 msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1679 if [ -n "$CFG_ENABLE_CCACHE" ]
1681 if [ -z "$CFG_CCACHE" ]
1683 err "ccache requested but not found"
1686 LLVM_CXX_32="ccache $CXX"
1687 LLVM_CC_32="ccache $CC"
1689 LLVM_CXX_64="ccache $CXX"
1690 LLVM_CC_64="ccache $CC"
1702 case "$CFG_CPUTYPE" in
1704 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1705 LLVM_CC_32="$LLVM_CC_32 -m32"
1707 LLVM_CFLAGS_32="-m32"
1708 LLVM_CXXFLAGS_32="-m32"
1709 LLVM_LDFLAGS_32="-m32"
1715 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1716 LLVM_CC_32="$LLVM_CC_32 -m32"
1730 if echo $t | grep -q x86_64
1732 LLVM_CXX=$LLVM_CXX_64
1734 LLVM_CFLAGS=$LLVM_CFLAGS_64
1735 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1736 LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1738 LLVM_CXX=$LLVM_CXX_32
1740 LLVM_CFLAGS=$LLVM_CFLAGS_32
1741 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1742 LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1747 CFLAGS="$CFLAGS $LLVM_CFLAGS"
1748 CXXFLAGS="$CXXFLAGS $LLVM_CXXFLAGS"
1749 LDFLAGS="$LDFLAGS $LLVM_LDFLAGS"
1751 if [ "$CFG_USING_LIBCPP" != "0" ]; then
1752 LLVM_OPTS="$LLVM_OPTS --enable-libcpp"
1755 LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \
1756 $LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON"
1758 msg "configuring LLVM with:"
1768 case $CFG_SRC_DIR in
1769 /* | [a-z]:* | [A-Z]:*)
1770 ${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS
1773 ${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \
1777 need_ok "LLVM configure failed"
1782 # Construct variables for LLVM build and install directories for
1783 # each target. These will be named
1784 # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1785 # target_triple will be converted to underscore, because bash
1786 # variables can't contain hyphens. The makefile will then have to
1788 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1789 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1790 eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1791 eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1795 step_msg "writing configuration"
1798 putvar CFG_SRC_DIR_RELATIVE
1799 putvar CFG_BUILD_DIR
1802 putvar CFG_CONFIGURE_ARGS
1806 putvar CFG_LIBDIR_RELATIVE
1807 putvar CFG_DISABLE_MANAGE_SUBMODULES
1808 putvar CFG_AARCH64_LINUX_ANDROID_NDK
1809 putvar CFG_ARM_LINUX_ANDROIDEABI_NDK
1810 putvar CFG_ARMV7_LINUX_ANDROIDEABI_NDK
1811 putvar CFG_I686_LINUX_ANDROID_NDK
1812 putvar CFG_NACL_CROSS_PATH
1814 putvar CFG_USING_LIBCPP
1816 # Avoid spurious warnings from clang by feeding it original source on
1817 # ccache-miss rather than preprocessed input.
1818 if [ -n "$CFG_ENABLE_CCACHE" ] && [ -n "$CFG_USING_CLANG" ]
1821 putvar CFG_CCACHE_CPP2
1824 if [ -n "$CFG_ENABLE_CCACHE" ]
1826 CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1827 putvar CFG_CCACHE_BASEDIR
1831 putvar CFG_LLVM_SRC_DIR
1835 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1836 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1837 putvar $CFG_LLVM_BUILD_DIR
1838 putvar $CFG_LLVM_INST_DIR
1841 if [ -n "$CFG_ENABLE_RUSTBUILD" ]
1843 INPUT_MAKEFILE=src/bootstrap/mk/Makefile.in
1845 INPUT_MAKEFILE=Makefile.in
1849 copy_if_changed ${CFG_SRC_DIR}${INPUT_MAKEFILE} ./Makefile
1850 move_if_changed config.tmp config.mk
1854 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1855 step_msg "configured in release mode. for development consider --enable-debug"
1860 msg "run \`make help\`"