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" ]
142 err "$V needed, but unable to find any of: $*"
147 for arg in $CFG_CONFIGURE_ARGS
150 for option in $BOOL_OPTIONS
152 if test --disable-$option = $arg
156 if test --enable-$option = $arg
161 for option in $VAL_OPTIONS
163 if echo "$arg" | grep -q -- "--$option="
168 if [ "$arg" = "--help" ]
171 echo "No more help available for Configure options,"
172 echo "check the Wiki or join our IRC channel"
175 if test $isArgValid -eq 0
177 err "Option '$arg' is not recognized"
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.
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.
193 VAL_OPTIONS="$VAL_OPTIONS $2"
204 local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
206 local V_PROVIDED="${V}_PROVIDED"
208 for arg in $CFG_CONFIGURE_ARGS
210 if echo "$arg" | grep -q -- "--$OP="
212 val=$(echo "$arg" | cut -f2 -d=)
217 if [ "$SAVE" = "save" ]
226 OP="${OP}=[${DEFAULT}]"
227 printf " --%-30s %s\n" "$OP" "$DOC"
232 valopt_core nosave "$@"
236 valopt_core save "$@"
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.
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
249 BOOL_OPTIONS="$BOOL_OPTIONS $2"
260 if [ $DEFAULT -eq 0 ]
263 DEFAULT_FLAG="disable"
266 DEFAULT_FLAG="enable"
272 for arg in $CFG_CONFIGURE_ARGS
274 if [ "$arg" = "--${FLAG}-${OP}" ]
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}_${OP}_PROVIDED"
282 if [ "$SAVE" = "save" ]
286 elif [ "$arg" = "--${DEFAULT_FLAG}-${OP}" ]
288 OP=$(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}_${OP}_PROVIDED"
299 printf " --%-30s %s\n" "$FLAG-$OP" "$DOC"
313 local V="CFG_${NAME}"
316 # If configure didn't set a value already, then check environment.
318 # (It is recommended that the configure script always check the
319 # environment before setting any values to envopt variables; see
320 # e.g. how CFG_CC is handled, where it first checks `-z "$CC"`,
321 # and issues msg if it ends up employing that provided value.)
328 # If script or environment provided a value, save it.
335 enable_if_not_disabled() {
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 "$VV" ]; then
348 i686-pc-windows-gnu) echo i686-w64-mingw32 ;;
349 x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;;
354 # Prints the absolute path of a directory to stdout
357 # Unset CDPATH because it causes havok: it makes the destination unpredictable
358 # and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null
360 (unset CDPATH && cd "$_path" > /dev/null && pwd)
370 msg "looking for configure programs"
387 msg "inspecting environment"
389 CFG_OSTYPE=$(uname -s)
390 CFG_CPUTYPE=$(uname -m)
392 if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ]
394 # Darwin's `uname -s` lies and always returns i386. We have to use sysctl
396 if sysctl hw.optional.x86_64 | grep -q ': 1'
402 # The goal here is to come up with the same triple as LLVM would,
403 # at least for the subset of platforms we're willing to target.
408 CFG_OSTYPE=unknown-linux-gnu
412 CFG_OSTYPE=unknown-freebsd
416 CFG_OSTYPE=unknown-dragonfly
420 CFG_OSTYPE=unknown-bitrig
424 CFG_OSTYPE=unknown-openbsd
428 CFG_OSTYPE=unknown-netbsd
432 CFG_OSTYPE=apple-darwin
436 CFG_OSTYPE=sun-solaris
437 CFG_CPUTYPE=$(isainfo -n)
441 CFG_OSTYPE=unknown-haiku
445 # msys' `uname` does not print gcc configuration, but prints msys
446 # configuration. so we cannot believe `uname -m`:
447 # msys1 is always i686 and msys2 is always x86_64.
448 # instead, msys defines $MSYSTEM which is MINGW32 on i686 and
451 CFG_OSTYPE=pc-windows-gnu
452 if [ "$MSYSTEM" = MINGW64 ]
459 CFG_OSTYPE=pc-windows-gnu
462 # Thad's Cygwin identifiers below
466 CFG_OSTYPE=pc-windows-gnu
472 CFG_OSTYPE=pc-windows-gnu
478 CFG_OSTYPE=pc-windows-gnu
484 CFG_OSTYPE=pc-windows-gnu
488 # Win 8 # uname -s on 64-bit cygwin does not contain WOW64, so simply use uname -m to detect arch (works in my install)
490 CFG_OSTYPE=pc-windows-gnu
492 # We do not detect other OS such as XP/2003 using 64 bit using uname.
493 # 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.
495 err "unknown OS type: $CFG_OSTYPE"
502 i386 | i486 | i686 | i786 | x86)
512 CFG_OSTYPE="${CFG_OSTYPE}eabihf"
517 CFG_OSTYPE="${CFG_OSTYPE}eabihf"
529 CFG_CPUTYPE=powerpc64
532 powerpc64le | ppc64le)
533 CFG_CPUTYPE=powerpc64le
540 x86_64 | x86-64 | x64 | amd64)
549 err "unknown CPU type: $CFG_CPUTYPE"
552 # Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation
553 if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ]
555 # $SHELL does not exist in standard 'sh', so probably only exists
556 # if configure is running in an interactive bash shell. /usr/bin/env
557 # exists *everywhere*.
558 BIN_TO_PROBE="$SHELL"
559 if [ ! -r "$BIN_TO_PROBE" ]; then
560 if [ -r "/usr/bin/env" ]; then
561 BIN_TO_PROBE="/usr/bin/env"
563 warn "Cannot check if the userland is i686 or x86_64"
566 file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
568 msg "i686 userland on x86_64 Linux kernel"
574 DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
576 CFG_SRC_DIR="$(abs_path $(dirname $0))/"
577 CFG_SRC_DIR_RELATIVE="$(dirname $0)/"
578 CFG_BUILD_DIR="$(pwd)/"
580 CFG_CONFIGURE_ARGS="$@"
583 case "${CFG_SRC_DIR}" in
585 err "The path to the rust source directory contains spaces, which is not supported"
596 echo "Usage: $CFG_SELF [options]"
601 msg "recreating config.tmp"
604 step_msg "processing $CFG_SELF args"
610 opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
611 opt valgrind 0 "run tests with valgrind (memcheck by default)"
612 opt helgrind 0 "run tests with helgrind instead of memcheck"
613 opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
614 opt docs 1 "build standard library documentation"
615 opt compiler-docs 0 "build compiler documentation"
616 opt optimize-tests 1 "build tests with optimizations"
617 opt debuginfo-tests 0 "build tests with debugger metadata"
618 opt quiet-tests 0 "enable quieter output when running tests"
619 opt libcpp 1 "build llvm with libc++ instead of libstdc++ when using clang"
620 opt llvm-assertions 0 "build LLVM with assertions"
621 opt debug-assertions 0 "build with debugging assertions"
622 opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
623 opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
624 opt sccache 0 "invoke gcc/clang via sccache to reuse object files between builds"
625 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
626 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"
627 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
628 opt llvm-link-shared 0 "prefer shared linking to LLVM (llvm-config --link-shared)"
629 opt rpath 1 "build rpaths into rustc itself"
630 opt stage0-landing-pads 1 "enable landing pads during bootstrap with stage0"
631 # This is used by the automation to produce single-target nightlies
632 opt dist-host-only 0 "only install bins for the host architecture"
633 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
634 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
635 opt rustbuild 1 "use the rust and cargo based build system"
636 opt codegen-tests 1 "run the src/test/codegen tests"
637 opt option-checking 1 "complain about unrecognized options in this configure script"
638 opt ninja 0 "build LLVM using the Ninja generator (for MSVC, requires building in the correct environment)"
639 opt vendor 0 "enable usage of vendored Rust crates"
641 # Optimization and debugging options. These may be overridden by the release channel, etc.
642 opt_nosave optimize 1 "build optimized rust code"
643 opt_nosave optimize-cxx 1 "build optimized C++ code"
644 opt_nosave optimize-llvm 1 "build optimized LLVM"
645 opt_nosave llvm-assertions 0 "build LLVM with assertions"
646 opt_nosave debug-assertions 0 "build with debugging assertions"
647 opt_nosave llvm-release-debuginfo 0 "build LLVM with debugger metadata"
648 opt_nosave debuginfo 0 "build with debugger metadata"
649 opt_nosave debuginfo-lines 0 "build with line number debugger metadata"
650 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
652 valopt localstatedir "/var/lib" "local state directory"
653 valopt sysconfdir "/etc" "install system configuration files"
655 valopt datadir "${CFG_PREFIX}/share" "install data"
656 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
657 valopt llvm-root "" "set LLVM root"
658 valopt python "" "set path to python"
659 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
660 valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
661 valopt android-cross-path "" "Android NDK standalone path (deprecated)"
662 valopt i686-linux-android-ndk "" "i686-linux-android NDK standalone path"
663 valopt arm-linux-androideabi-ndk "" "arm-linux-androideabi NDK standalone path"
664 valopt armv7-linux-androideabi-ndk "" "armv7-linux-androideabi NDK standalone path"
665 valopt aarch64-linux-android-ndk "" "aarch64-linux-android NDK standalone path"
666 valopt nacl-cross-path "" "NaCl SDK path (Pepper Canary is recommended). Must be absolute!"
667 valopt musl-root "/usr/local" "MUSL root installation directory (deprecated)"
668 valopt musl-root-x86_64 "" "x86_64-unknown-linux-musl install directory"
669 valopt musl-root-i686 "" "i686-unknown-linux-musl install directory"
670 valopt musl-root-arm "" "arm-unknown-linux-musleabi install directory"
671 valopt musl-root-armhf "" "arm-unknown-linux-musleabihf install directory"
672 valopt musl-root-armv7 "" "armv7-unknown-linux-musleabihf install directory"
673 valopt extra-filename "" "Additional data that is hashed and passed to the -C extra-filename flag"
675 if [ -e ${CFG_SRC_DIR}.git ]
677 valopt release-channel "dev" "the name of the release channel to build"
679 # If we have no git directory then we are probably a tarball distribution
680 # and should default to stable channel - Issue 28322
682 msg "git: no git directory. Changing default release channel to stable"
683 valopt release-channel "stable" "the name of the release channel to build"
686 # Used on systems where "cc" and "ar" are unavailable
687 valopt default-linker "cc" "the default linker"
688 valopt default-ar "ar" "the default ar"
690 # Many of these are saved below during the "writing configuration" step
691 # (others are conditionally saved).
692 opt_nosave manage-submodules 1 "let the build manage the git submodules"
693 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
694 opt_nosave jemalloc 1 "build liballoc with jemalloc"
695 opt elf-tls 1 "elf thread local storage on platforms where supported"
697 valopt_nosave prefix "/usr/local" "set installation prefix"
698 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
699 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
700 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
701 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
702 valopt_nosave docdir "${CFG_PREFIX}/share/doc/rust" "install documentation in PATH"
704 # On Windows this determines root of the subtree for target libraries.
705 # Host runtime libs always go to 'bin'.
706 valopt libdir "${CFG_PREFIX}/lib" "install libraries"
708 case "$CFG_LIBDIR" in
709 "$CFG_PREFIX"/*) CAT_INC=2;;
710 "$CFG_PREFIX"*) CAT_INC=1;;
712 err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
715 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
724 if [ -z "$CFG_DISABLE_OPTION_CHECKING" ]
726 step_msg "validating $CFG_SELF args"
730 # Validate the release channel, and configure options
731 case "$CFG_RELEASE_CHANNEL" in
733 msg "overriding settings for $CFG_RELEASE_CHANNEL"
734 CFG_ENABLE_LLVM_ASSERTIONS=1
736 # FIXME(#37364) shouldn't have to disable this on windows-gnu
741 CFG_ENABLE_DEBUGINFO_LINES=1
746 msg "overriding settings for $CFG_RELEASE_CHANNEL"
751 CFG_ENABLE_DEBUGINFO_LINES=1
758 err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
762 # Adjust perf and debug options for debug mode
763 if [ -n "$CFG_ENABLE_DEBUG" ]; then
764 msg "debug mode enabled, setting performance options"
765 if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
766 msg "optimization not explicitly enabled, disabling optimization"
767 CFG_DISABLE_OPTIMIZE=1
768 CFG_DISABLE_OPTIMIZE_CXX=1
771 # Set following variables to 1 unless setting already provided
772 enable_if_not_disabled debug-assertions
773 enable_if_not_disabled debug-jemalloc
774 enable_if_not_disabled debuginfo
775 enable_if_not_disabled llvm-assertions
778 # OK, now write the debugging options
779 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
780 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
781 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
782 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
783 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
784 if [ -n "$CFG_ENABLE_LLVM_RELEASE_DEBUGINFO" ]; then putvar CFG_ENABLE_LLVM_RELEASE_DEBUGINFO; fi
785 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
786 if [ -n "$CFG_ENABLE_DEBUGINFO_LINES" ]; then putvar CFG_ENABLE_DEBUGINFO_LINES; fi
787 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
789 step_msg "looking for build programs"
791 probe_need CFG_CURL curl
792 if [ -z "$CFG_PYTHON_PROVIDED" ]; then
793 probe_need CFG_PYTHON python2.7 python2 python
796 python_version=$($CFG_PYTHON -V 2>&1)
797 if [ $(echo $python_version | grep -c '^Python 2\.7') -ne 1 ]; then
798 err "Found $python_version, but Python 2.7 is required"
801 # If we have no git directory then we are probably a tarball distribution
802 # and shouldn't attempt to load submodules
803 if [ ! -e ${CFG_SRC_DIR}.git ]
806 msg "git: no git directory. disabling submodules"
807 CFG_DISABLE_MANAGE_SUBMODULES=1
809 probe_need CFG_GIT git
812 # Use `md5sum` on GNU platforms, or `md5 -q` on BSD
814 probe CFG_MD5SUM md5sum
817 CFG_HASH_COMMAND="$CFG_MD5 -q | cut -c 1-8"
818 elif [ -n "$CFG_MD5SUM" ]
820 CFG_HASH_COMMAND="$CFG_MD5SUM | cut -c 1-8"
822 err 'could not find one of: md5 md5sum'
824 putvar CFG_HASH_COMMAND
826 probe CFG_CLANG clang++
827 probe CFG_CCACHE ccache
830 probe CFG_VALGRIND valgrind
833 probe CFG_ANTLR4 antlr4
836 probe CFG_BISON bison
840 if [ -n "$CFG_ENABLE_NINJA" ]
842 probe CFG_NINJA ninja
843 if [ -z "$CFG_NINJA" ]
845 # On Debian and Fedora, the `ninja` binary is an IRC bot, so the build tool was
846 # renamed. Handle this case.
847 probe CFG_NINJA ninja-build
852 if [ -z "$CFG_LLVM_ROOT" ]
854 probe_need CFG_CMAKE cmake
857 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
858 # installed. Since `javac` is only used if `antlr4` is available,
859 # probe for it only in this case.
860 if [ -n "$CFG_ANTLR4" ]
862 CFG_ANTLR4_JAR="\"$(find /usr/ -name antlr-complete.jar 2>/dev/null | head -n 1)\""
863 if [ "x" = "x$CFG_ANTLR4_JAR" ]
865 CFG_ANTLR4_JAR="\"$(find ~ -name antlr-complete.jar 2>/dev/null | head -n 1)\""
867 putvar CFG_ANTLR4_JAR $CFG_ANTLR4_JAR
868 probe CFG_JAVAC javac
871 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
872 # only disabled if you opt out.
873 if [ -z "$CFG_VALGRIND" ]
875 # If the user has explicitly asked for valgrind tests, then fail
876 if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
878 err "No valgrind present, but valgrind tests explicitly requested"
880 CFG_DISABLE_VALGRIND_RPASS=1
881 putvar CFG_DISABLE_VALGRIND_RPASS
885 if [ -n "$CFG_LLDB" ]
887 # Store LLDB's version
888 CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
889 putvar CFG_LLDB_VERSION
891 # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
892 # LLDB via the -P commandline options.
893 if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
895 CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
897 # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
898 if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
900 CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
903 putvar CFG_LLDB_PYTHON_DIR
907 # LLDB tests on OSX require /usr/bin/python, not something like Homebrew's
908 # /usr/local/bin/python. We're loading a compiled module for LLDB tests which is
909 # only compatible with the system.
912 CFG_LLDB_PYTHON=/usr/bin/python
915 CFG_LLDB_PYTHON=$CFG_PYTHON
918 putvar CFG_LLDB_PYTHON
920 step_msg "looking for target specific programs"
925 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
930 # --enable-local-rebuild implies --enable-local-rust too
931 if [ -n "$CFG_ENABLE_LOCAL_REBUILD" ]
933 if [ -z "$CFG_ENABLE_LOCAL_RUST" ]
935 CFG_ENABLE_LOCAL_RUST=1
936 putvar CFG_ENABLE_LOCAL_RUST
940 if [ -n "$CFG_ENABLE_LOCAL_RUST" ]
942 system_rustc=$(which rustc)
943 if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
945 : # everything already configured
946 elif [ -n "$system_rustc" ]
948 # we assume that rustc is in a /bin directory
949 CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
951 err "no local rust to use"
954 CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
955 LRV=`LD_LIBRARY_PATH=${CFG_LOCAL_RUST_ROOT}/lib $CMD --version`
958 step_msg "failure while running $CMD --version"
961 step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
962 putvar CFG_LOCAL_RUST_ROOT
965 # Force bitrig to build with clang; gcc doesn't like us there
966 if [ $CFG_OSTYPE = unknown-bitrig ]
968 step_msg "on Bitrig, forcing use of clang"
972 # default gcc version under OpenBSD maybe too old, try using egcc, which is a
973 # gcc version from ports
974 if [ $CFG_OSTYPE = unknown-openbsd ]
976 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
977 step_msg "older GCC found, try with egcc instead"
979 # probe again but using egcc
982 # and use egcc/eg++ for CC/CXX too if it was found
983 # (but user setting has priority)
984 if [ -n "$CFG_GCC" ]; then
991 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
992 # system, so if we find that gcc is clang, we should just use clang directly.
993 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
995 CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
998 step_msg "on OS X >=10.9, forcing use of clang"
1001 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
1002 step_msg "older GCC found, using clang instead"
1005 # on OS X, with xcode 5 and newer, certain developers may have
1006 # cc, gcc and g++ point to a mixture of clang and gcc
1007 # if so, this will create very strange build errors
1008 # this last stanza is to detect some such problems and save the future rust
1009 # contributor some time solving that issue.
1010 # this detection could be generalized to other OSes aside from OS X
1011 # but the issue seems most likely to happen on OS X
1014 $1 --version 2> /dev/null | grep -q $2
1016 # check that gcc, cc and g++ all point to the same compiler.
1017 # note that for xcode 5, g++ points to clang, not clang++
1018 if !((chk_cc gcc clang && chk_cc g++ clang) ||
1019 (chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then
1020 err "the gcc and g++ in your path point to different compilers.
1021 Check which versions are in your path with gcc --version and g++ --version.
1022 To resolve this problem, either fix your PATH or run configure with --enable-clang"
1029 # If the clang isn't already enabled, check for GCC, and if it is missing, turn
1030 # on clang as a backup.
1031 if [ -z "$CFG_ENABLE_CLANG" ]
1033 CFG_GCC_VERSION=$("$CFG_GCC" --version 2>&1)
1036 step_msg "GCC not installed, will try using Clang"
1041 # Okay, at this point, we have made up our minds about whether we are
1042 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
1043 if [ -n "$CFG_ENABLE_CLANG" ]
1045 putvar CFG_ENABLE_CLANG
1048 if [ -z "$CFG_DISABLE_LIBCPP" -a -n "$CFG_ENABLE_CLANG" ]
1050 CFG_USING_LIBCPP="1"
1052 CFG_USING_LIBCPP="0"
1055 # Same with jemalloc. save the setting here.
1056 if [ -n "$CFG_DISABLE_JEMALLOC" ]
1058 putvar CFG_DISABLE_JEMALLOC
1061 if [ -n "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
1063 step_msg "using custom LLVM at $CFG_LLVM_ROOT"
1065 LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
1066 LLVM_VERSION=$($LLVM_CONFIG --version)
1068 case $LLVM_VERSION in
1070 msg "found ok version of LLVM: $LLVM_VERSION"
1073 err "bad LLVM version: $LLVM_VERSION, need >=3.7"
1077 if "$CFG_LLVM_ROOT/bin/llvm-mc" -help | grep -- "-relocation-model"; then
1078 msg "found older llvm-mc"
1079 CFG_LLVM_MC_HAS_RELOCATION_MODEL=1
1080 putvar CFG_LLVM_MC_HAS_RELOCATION_MODEL
1084 # Even when the user overrides the choice of CC, still try to detect
1085 # clang to disable some clang-specific warnings. We here draw a
1086 # distinction between:
1088 # CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
1089 # CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
1091 # This distinction is important because there are some safeguards we
1092 # would prefer to skip when merely CFG_USING_CLANG is set; but when
1093 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
1094 # running such safeguards.
1098 msg "skipping compiler inference steps; using provided CC=$CC"
1101 CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
1104 step_msg "note, user-provided CC looks like clang; CC=$CC."
1106 putvar CFG_USING_CLANG
1109 if [ -n "$CFG_ENABLE_CLANG" ]
1111 if [ -z "$CFG_CLANG" ]
1113 err "clang requested but not found"
1117 putvar CFG_USING_CLANG
1123 if [ -n "$CFG_ENABLE_CLANG" ]
1135 if [ -n "$CFG_ENABLE_CCACHE" ]
1137 if [ -z "$CFG_CCACHE" ]
1139 err "ccache requested but not found"
1142 CFG_CC="ccache $CFG_CC"
1145 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1147 err "either clang or gcc is required"
1150 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1151 # point in the script; after this point, script logic should inspect
1152 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1154 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS,LDFLAGS}
1162 # stdc++ name in use
1163 # used to manage non-standard name (on OpenBSD for example)
1164 program_transform_name=$($CFG_CC -v 2>&1 | sed -n "s/.*--program-transform-name='\([^']*\)'.*/\1/p")
1165 CFG_STDCPP_NAME=$(echo "stdc++" | sed "${program_transform_name}")
1166 putvar CFG_STDCPP_NAME
1168 # a little post-processing of various config values
1169 CFG_PREFIX=${CFG_PREFIX%/}
1170 CFG_MANDIR=${CFG_MANDIR%/}
1171 CFG_DOCDIR=${CFG_DOCDIR%/}
1172 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1173 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1174 CFG_SUPPORTED_TARGET=""
1175 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1176 CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1179 # copy build-triples to host-triples so that builds are a subset of hosts
1181 for i in $CFG_BUILD $CFG_HOST;
1183 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1187 # copy host-triples to target-triples so that hosts are a subset of targets
1189 for i in $CFG_HOST $CFG_TARGET;
1191 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1195 # check target-specific tool-chains
1196 for i in $CFG_TARGET
1199 for j in $CFG_SUPPORTED_TARGET
1207 if [ $L_CHECK = false ]
1209 err "unsupported target triples \"$i\" found"
1215 armv7-linux-androideabi)
1216 cmd_prefix="arm-linux-androideabi"
1223 upper_snake_target=$(echo "$i" | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
1224 eval ndk=\$"CFG_${upper_snake_target}_NDK"
1227 ndk=$CFG_ANDROID_CROSS_PATH
1228 eval "CFG_${upper_snake_target}_NDK"=$CFG_ANDROID_CROSS_PATH
1229 warn "generic/default Android NDK option is deprecated (use --$i-ndk option instead)"
1232 # Perform a basic sanity check of the NDK
1233 for android_ndk_tool in "$ndk/bin/$cmd_prefix-gcc" "$ndk/bin/$cmd_prefix-g++" "$ndk/bin/$cmd_prefix-ar"
1235 if [ ! -f $android_ndk_tool ]
1237 err "NDK tool $android_ndk_tool not found (bad or missing --$i-ndk option?)"
1242 if [ -z "$CFG_NACL_CROSS_PATH" ]
1244 err "I need the NaCl SDK path! (use --nacl-cross-path)"
1248 if [ $CFG_OSTYPE != apple-darwin ]
1250 err "The iOS target is only supported on Mac OS X"
1255 # There are three builds of cmake on windows: MSVC, MinGW and Cygwin
1256 # The Cygwin build does not have generators for Visual Studio, so
1257 # detect that here and error.
1258 if ! "$CFG_CMAKE" --help | sed -n '/^Generators/,$p' | grep 'Visual Studio' > /dev/null
1262 cmake does not support Visual Studio generators.
1264 This is likely due to it being an msys/cygwin build of cmake, \
1265 rather than the required windows version, built using MinGW \
1268 If you are building under msys2 try installing the mingw-w64-x86_64-cmake \
1269 package instead of cmake:
1271 $ pacman -R cmake && pacman -S mingw-w64-x86_64-cmake
1275 # Use the REG program to figure out where VS is installed
1276 # We need to figure out where cl.exe and link.exe are, so we do some
1277 # munging and some probing here. We also look for the default
1278 # INCLUDE and LIB variables for MSVC so we can set those in the
1279 # build system as well.
1280 install=$(cmd //c reg QUERY \
1281 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0' \
1283 if [ -z "$install" ]; then
1284 install=$(cmd //c reg QUERY \
1285 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0' \
1288 need_ok "couldn't find visual studio install root"
1289 CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
1290 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1291 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1292 putvar CFG_MSVC_ROOT
1304 err "can only target x86 targets for MSVC"
1307 bindir="${CFG_MSVC_ROOT}/VC/bin"
1308 if [ -n "$msvc_part" ]; then
1309 bindir="$bindir/$msvc_part"
1311 eval CFG_MSVC_BINDIR_$bits="\"$bindir\""
1312 eval CFG_MSVC_CL_$bits="\"$bindir/cl.exe\""
1313 eval CFG_MSVC_LIB_$bits="\"$bindir/lib.exe\""
1314 eval CFG_MSVC_LINK_$bits="\"$bindir/link.exe\""
1316 vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
1317 include_path=$(cmd //V:ON //c "$vcvarsall" $msvc_part \& echo !INCLUDE!)
1318 need_ok "failed to learn about MSVC's INCLUDE"
1319 lib_path=$(cmd //V:ON //c "$vcvarsall" $msvc_part \& echo !LIB!)
1320 need_ok "failed to learn about MSVC's LIB"
1322 eval CFG_MSVC_INCLUDE_PATH_${bits}="\"$include_path\""
1323 eval CFG_MSVC_LIB_PATH_${bits}="\"$lib_path\""
1325 putvar CFG_MSVC_BINDIR_${bits}
1326 putvar CFG_MSVC_CL_${bits}
1327 putvar CFG_MSVC_LIB_${bits}
1328 putvar CFG_MSVC_LINK_${bits}
1329 putvar CFG_MSVC_INCLUDE_PATH_${bits}
1330 putvar CFG_MSVC_LIB_PATH_${bits}
1338 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
1340 # There are some MSYS python builds which will auto-translate
1341 # windows-style paths to MSYS-style paths in Python itself.
1342 # Unfortunately this breaks LLVM's build system as somewhere along
1343 # the line LLVM prints a path into a file from Python and then CMake
1344 # later tries to interpret that path. If Python prints a MSYS path
1345 # and CMake tries to use it as a Windows path, you're gonna have a
1348 # Consequently here we try to detect when that happens and print an
1350 if $CFG_PYTHON -c 'import sys; print sys.argv[1]' `pwd` | grep '^/' > /dev/null
1354 python is silently translating windows paths to MSYS paths \
1355 and the build will fail if this python is used.
1357 Either an official python install must be used or an \
1358 alternative python package in MinGW must be used.
1360 If you are building under msys2 try installing the mingw-w64-x86_64-python2 \
1361 package instead of python2:
1363 $ pacman -S mingw-w64-x86_64-python2
1368 if [ -n "$CFG_PERF" ]
1370 HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1371 if [ -z "$HAVE_PERF_LOGFD" ];
1373 CFG_PERF_WITH_LOGFD=1
1374 putvar CFG_PERF_WITH_LOGFD
1378 if [ -n "$CFG_DISABLE_RUSTBUILD" ]; then
1380 step_msg "making directories"
1383 doc doc/std doc/extra \
1396 make_dir $t/rustllvm
1399 for t in $CFG_TARGET
1404 make_dir $t/rt/stage$s
1405 make_dir $t/rt/jemalloc
1406 make_dir $t/rt/compiler-rt
1409 arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1411 make_dir $t/rt/stage$s/$i
1418 for t in $CFG_TARGET
1420 # host bin dir stage0
1421 make_dir $h/stage0/bin
1423 # host lib dir stage0
1424 make_dir $h/stage0/lib
1426 # host test dir stage0
1427 make_dir $h/stage0/test
1429 # target bin dir stage0
1430 make_dir $h/stage0/lib/rustlib/$t/bin
1432 # target lib dir stage0
1433 make_dir $h/stage0/lib/rustlib/$t/lib
1438 make_dir $h/stage$i/bin
1441 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1444 make_dir $h/stage$i/test
1447 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1450 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1454 make_dir $h/test/run-pass
1455 make_dir $h/test/run-pass-valgrind
1456 make_dir $h/test/run-pass-fulldeps
1457 make_dir $h/test/run-fail
1458 make_dir $h/test/run-fail-fulldeps
1459 make_dir $h/test/compile-fail
1460 make_dir $h/test/parse-fail
1461 make_dir $h/test/compile-fail-fulldeps
1462 make_dir $h/test/bench
1463 make_dir $h/test/perf
1464 make_dir $h/test/pretty
1465 make_dir $h/test/debuginfo-gdb
1466 make_dir $h/test/debuginfo-lldb
1467 make_dir $h/test/codegen
1468 make_dir $h/test/codegen-units
1469 make_dir $h/test/rustdoc
1474 # Configure submodules
1475 step_msg "configuring submodules"
1477 # Have to be in the top of src directory for this
1478 if [ -z "$CFG_DISABLE_MANAGE_SUBMODULES" ] && [ -n "$CFG_DISABLE_RUSTBUILD" ]
1482 msg "git: submodule sync"
1483 "${CFG_GIT}" submodule sync
1485 msg "git: submodule init"
1486 "${CFG_GIT}" submodule init
1488 # Disable submodules that we're not using
1489 if [ -n "${CFG_LLVM_ROOT}" ]; then
1490 msg "git: submodule deinit src/llvm"
1491 "${CFG_GIT}" submodule deinit src/llvm
1493 if [ -n "${CFG_JEMALLOC_ROOT}" ]; then
1494 msg "git: submodule deinit src/jemalloc"
1495 "${CFG_GIT}" submodule deinit src/jemalloc
1498 msg "git: submodule update"
1499 "${CFG_GIT}" submodule update
1500 need_ok "git failed"
1502 msg "git: submodule foreach sync"
1503 "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1504 need_ok "git failed"
1506 msg "git: submodule foreach update"
1507 "${CFG_GIT}" submodule update --recursive
1508 need_ok "git failed"
1510 # NB: this is just for the sake of getting the submodule SHA1 values
1511 # and status written into the build log.
1512 msg "git: submodule status"
1513 "${CFG_GIT}" submodule status --recursive
1515 msg "git: submodule clobber"
1516 "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1517 need_ok "git failed"
1518 "${CFG_GIT}" submodule foreach --recursive git checkout .
1519 need_ok "git failed"
1524 # Do a sanity check that the submodule source exists. Because GitHub
1525 # automatically publishes broken tarballs that can't be disabled, and
1526 # people download them and try to use them.
1527 if [ ! -e "${CFG_SRC_DIR}/src/liblibc" ]; then
1528 err "some submodules are missing. Is this a broken tarball?
1530 If you downloaded this tarball from the GitHub release pages at
1531 https://github.com/rust-lang/rust/releases,
1532 then please delete it and instead download the source from
1533 https://www.rust-lang.org/downloads.html"
1537 # Configure llvm, only if necessary
1538 step_msg "looking at LLVM"
1539 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1550 if [ -z "$CFG_DISABLE_RUSTBUILD" ]
1552 msg "not configuring LLVM, rustbuild in use"
1554 elif [ -z "$CFG_LLVM_ROOT" ]
1556 LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1557 LLVM_INST_DIR=$LLVM_BUILD_DIR
1558 # For some crazy reason the MSVC output dir is different than Unix
1559 if [ ${is_msvc} -ne 0 ]; then
1560 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1562 # Just use LLVM straight from its build directory to
1563 # avoid 'make install' time
1564 LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1566 LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1570 msg "not reconfiguring LLVM, external LLVM root"
1571 # The user is using their own LLVM
1573 LLVM_INST_DIR=$CFG_LLVM_ROOT
1575 # Check that LLVm FileCheck is available. Needed for the tests
1576 if [ -z "$CFG_DISABLE_CODEGEN_TESTS" ]; then
1577 need_cmd $LLVM_INST_DIR/bin/FileCheck
1581 if [ ${do_reconfigure} -ne 0 ]
1583 # because git is hilarious, it might have put the module index
1584 # in a couple places.
1585 index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1586 index2="${CFG_SRC_DIR}src/llvm/.git/index"
1587 for index in ${index1} ${index2}
1589 config_status="${LLVM_BUILD_DIR}/config.status"
1590 if test -e ${index} -a \
1591 -e ${config_status} -a \
1592 ${config_status} -nt ${index}
1594 msg "not reconfiguring LLVM, config.status is fresh"
1600 # We need the generator later on for compiler-rt even if LLVM's not built
1601 if [ -n "$CFG_NINJA" ]
1604 elif [ ${is_msvc} -ne 0 ]
1606 case "$CFG_MSVC_ROOT" in
1608 generator="Visual Studio 14 2015"
1611 generator="Visual Studio 12 2013"
1614 err "can't determine generator for LLVM cmake"
1619 generator="$generator Win64"
1624 err "can only build LLVM for x86 platforms"
1628 generator="Unix Makefiles"
1630 CFG_CMAKE_GENERATOR=$generator
1631 putvar CFG_CMAKE_GENERATOR
1633 msg "configuring LLVM for $t"
1644 LLVM_CXX_32="ccache"
1646 LLVM_CXX_32_ARG1="clang++"
1647 LLVM_CC_32_ARG1="clang"
1648 LLVM_CFLAGS_32="-Qunused-arguments"
1649 LLVM_CXXFLAGS_32="-Qunused-arguments"
1651 LLVM_CXX_64="ccache"
1653 LLVM_CXX_64_ARG1="clang++"
1654 LLVM_CC_64_ARG1="clang"
1655 LLVM_CFLAGS_64="-Qunused-arguments"
1656 LLVM_CXXFLAGS_64="-Qunused-arguments"
1659 LLVM_CXX_32="clang++"
1661 LLVM_CFLAGS_32="-Qunused-arguments"
1662 LLVM_CXXFLAGS_32="-Qunused-arguments"
1664 LLVM_CXX_64="clang++"
1666 LLVM_CFLAGS_64="-Qunused-arguments"
1667 LLVM_CXXFLAGS_64="-Qunused-arguments"
1670 LLVM_CXX_32="ccache"
1672 LLVM_CXX_32_ARG1="g++"
1673 LLVM_CC_32_ARG1="gcc"
1675 LLVM_CXX_64="ccache"
1677 LLVM_CXX_64_ARG1="g++"
1678 LLVM_CC_64_ARG1="gcc"
1681 if [ -z "$CFG_ENABLE_SCCACHE" ]; then
1688 LLVM_CXX_32="sccache"
1689 LLVM_CC_32="sccache"
1690 LLVM_CXX_32_ARG1="g++"
1691 LLVM_CC_32_ARG1="gcc"
1693 LLVM_CXX_64="sccache"
1694 LLVM_CC_64="sccache"
1695 LLVM_CXX_64_ARG1="g++"
1696 LLVM_CC_64_ARG1="gcc"
1701 msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1702 if [ -n "$CFG_ENABLE_CCACHE" ]
1704 if [ -z "$CFG_CCACHE" ]
1706 err "ccache requested but not found"
1709 LLVM_CXX_32="ccache"
1711 LLVM_CXX_32_ARG1="$CXX"
1712 LLVM_CC_32_ARG1="$CC"
1714 LLVM_CXX_64="ccache"
1716 LLVM_CXX_64_ARG1="$CXX"
1717 LLVM_CC_64_ARG1="$CC"
1729 case "$CFG_CPUTYPE" in
1731 LLVM_CFLAGS_32="$LLVM_CFLAGS_32 -m32"
1732 LLVM_CXXFLAGS_32="$LLVM_CXXFLAGS_32 -m32"
1733 LLVM_LDFLAGS_32="$LLVM_LDFLAGS_32 -m32"
1737 if echo $t | grep -q x86_64
1739 LLVM_CXX=$LLVM_CXX_64
1741 LLVM_CXX_ARG1=$LLVM_CXX_64_ARG1
1742 LLVM_CC_ARG1=$LLVM_CC_64_ARG1
1743 LLVM_CFLAGS=$LLVM_CFLAGS_64
1744 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1745 LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1747 LLVM_CXX=$LLVM_CXX_32
1749 LLVM_CXX_ARG1=$LLVM_CXX_32_ARG1
1750 LLVM_CC_ARG1=$LLVM_CC_32_ARG1
1751 LLVM_CFLAGS=$LLVM_CFLAGS_32
1752 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1753 LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1756 if [ "$CFG_USING_LIBCPP" != "0" ]; then
1757 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_LIBCXX=ON"
1760 # Turn off things we don't need
1761 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_INCLUDE_TESTS=OFF"
1762 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_INCLUDE_EXAMPLES=OFF"
1763 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_INCLUDE_DOCS=OFF"
1764 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ZLIB=OFF"
1765 CMAKE_ARGS="$CMAKE_ARGS -DWITH_POLY=OFF"
1766 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_TERMINFO=OFF"
1767 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_LIBEDIT=OFF"
1769 arch="$(echo "$t" | cut -d - -f 1)"
1771 if [ "$arch" = i686 ]; then
1772 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_BUILD_32_BITS=ON"
1775 if [ "$t" != "$CFG_BUILD" ]; then
1776 # see http://llvm.org/docs/HowToCrossCompileLLVM.html
1777 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_CROSSCOMPILING=True"
1778 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_TARGET_ARCH=$arch"
1779 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_TABLEGEN=$CFG_BUILD_DIR/$CFG_BUILD/llvm/bin/llvm-tblgen"
1780 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_DEFAULT_TARGET_TRIPLE=$t"
1783 # MSVC handles compiler business itself
1784 if [ ${is_msvc} -eq 0 ]; then
1785 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_C_COMPILER=$LLVM_CC"
1786 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_CXX_COMPILER=$LLVM_CXX"
1787 CMAKE_ARGS="$CMAKE_ARGS '-DCMAKE_C_FLAGS=$LLVM_CFLAGS'"
1788 CMAKE_ARGS="$CMAKE_ARGS '-DCMAKE_CXX_FLAGS=$LLVM_CXXFLAGS'"
1789 if [ -n "$LLVM_CC_ARG1" ]; then
1790 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_C_COMPILER_ARG1=$LLVM_CC_ARG1"
1792 if [ -n "$LLVM_CXX_ARG1" ]; then
1793 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_CXX_COMPILER_ARG1=$LLVM_CXX_ARG1"
1795 # FIXME: What about LDFLAGS?
1798 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then
1799 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Debug"
1800 elif [ -n "$CFG_ENABLE_LLVM_RELEASE_DEBUGINFO" ]; then
1801 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=RelWithDebInfo"
1803 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release"
1805 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1807 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=OFF"
1809 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=ON"
1812 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_TARGETS_TO_BUILD='X86;ARM;AArch64;Mips;PowerPC;SystemZ;JSBackend;MSP430'"
1813 CMAKE_ARGS="$CMAKE_ARGS -G '$CFG_CMAKE_GENERATOR'"
1814 CMAKE_ARGS="$CMAKE_ARGS $CFG_LLVM_SRC_DIR"
1816 if [ ${do_reconfigure} -ne 0 ]
1818 msg "configuring LLVM for $t with cmake"
1820 msg "configuring LLVM with:"
1823 (cd $LLVM_BUILD_DIR && eval "\"$CFG_CMAKE\"" $CMAKE_ARGS)
1824 need_ok "LLVM cmake configure failed"
1827 # Construct variables for LLVM build and install directories for
1828 # each target. These will be named
1829 # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1830 # target_triple will be converted to underscore, because bash
1831 # variables can't contain hyphens. The makefile will then have to
1833 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1834 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1835 eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1836 eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1840 step_msg "writing configuration"
1843 putvar CFG_SRC_DIR_RELATIVE
1844 putvar CFG_BUILD_DIR
1847 putvar CFG_CONFIGURE_ARGS
1851 putvar CFG_LIBDIR_RELATIVE
1852 putvar CFG_DISABLE_MANAGE_SUBMODULES
1853 putvar CFG_AARCH64_LINUX_ANDROID_NDK
1854 putvar CFG_ARM_LINUX_ANDROIDEABI_NDK
1855 putvar CFG_ARMV7_LINUX_ANDROIDEABI_NDK
1856 putvar CFG_I686_LINUX_ANDROID_NDK
1857 putvar CFG_NACL_CROSS_PATH
1860 putvar CFG_USING_LIBCPP
1862 # Avoid spurious warnings from clang by feeding it original source on
1863 # ccache-miss rather than preprocessed input.
1864 if [ -n "$CFG_ENABLE_CCACHE" ] && [ -n "$CFG_USING_CLANG" ]
1867 putvar CFG_CCACHE_CPP2
1870 if [ -n "$CFG_ENABLE_CCACHE" ]
1872 CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1873 putvar CFG_CCACHE_BASEDIR
1877 putvar CFG_LLVM_SRC_DIR
1881 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1882 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1883 putvar $CFG_LLVM_BUILD_DIR
1884 putvar $CFG_LLVM_INST_DIR
1887 if [ -z "$CFG_DISABLE_RUSTBUILD" ]
1889 INPUT_MAKEFILE=src/bootstrap/mk/Makefile.in
1891 INPUT_MAKEFILE=Makefile.in
1895 copy_if_changed ${CFG_SRC_DIR}${INPUT_MAKEFILE} ./Makefile
1896 move_if_changed config.tmp config.mk
1900 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1901 step_msg "configured in release mode. for development consider --enable-debug"
1906 if [ "$CFG_SRC_DIR" = `pwd` ]; then
1909 X_PY=${CFG_SRC_DIR_RELATIVE}x.py
1912 if [ -z "$CFG_DISABLE_RUSTBUILD" ]; then
1913 msg "NOTE you have now configured rust to use a rewritten build system"
1914 msg " called rustbuild, and as a result this may have bugs that "
1915 msg " you did not see before. If you experience any issues you can"
1916 msg " go back to the old build system with --disable-rustbuild and"
1917 msg " please feel free to report any bugs!"
1919 msg "run \`python ${X_PY} --help\`"
1921 warn "the makefile-based build system is deprecated in favor of rustbuild"
1923 msg "It is recommended you avoid passing --disable-rustbuild to get your"
1924 msg "build working as the makefiles will be deleted on 2017-02-02. If you"
1925 msg "encounter bugs with rustbuild please file issues against rust-lang/rust"
1927 msg "run \`make help\`"