14 echo "configure: WARNING: $1"
18 echo "configure: error: $1"
30 if command -v $1 >/dev/null 2>&1
31 then msg "found program $1"
32 else err "need program $1"
47 msg "leaving $2 unchanged"
51 chmod u-w $2 # make copied artifact read-only
58 msg "leaving $2 unchanged"
62 chmod u-w $2 # make moved artifact read-only
72 printf "configure: %-20s := %.35s ...\n" $1 "$T"
74 printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
76 printf "%-20s := %s\n" $1 "$T" >>config.tmp
85 printf "configure: %-20s := %.35s ...\n" $1 "$T"
87 printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
91 printf "%-20s := \n" $1 >>config.tmp
93 printf "%-20s := \"%s\"\n" $1 "$T" >>config.tmp
104 T=$(command -v $P 2>&1)
107 VER0=$($P --version 2>/dev/null \
108 | grep -o '[vV]\?[0-9][0-9.][a-z0-9.-]*' | head -1 )
109 if [ $? -eq 0 -a "x${VER0}" != "x" ]
131 err "needed, but unable to find any of: $*"
136 for arg in $CFG_CONFIGURE_ARGS
139 for option in $BOOL_OPTIONS
141 if test --disable-$option = $arg
145 if test --enable-$option = $arg
150 for option in $VAL_OPTIONS
152 if echo "$arg" | grep -q -- "--$option="
157 if [ "$arg" = "--help" ]
160 echo "No more help available for Configure options,"
161 echo "check the Wiki or join our IRC channel"
164 if test $isArgValid -eq 0
166 err "Option '$arg' is not recognized"
172 # `valopt OPTION_NAME DEFAULT DOC` extracts a string-valued option
173 # from command line, using provided default value for the option if
174 # not present, and saves it to the generated config.mk.
176 # `valopt_nosave` is much the same, except that it does not save the
177 # result to config.mk (instead the script should use `putvar` itself
178 # later on to save it). `valopt_core` is the core upon which the
179 # other two are built.
182 VAL_OPTIONS="$VAL_OPTIONS $2"
193 local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
195 local V_PROVIDED="${V}_PROVIDED"
197 for arg in $CFG_CONFIGURE_ARGS
199 if echo "$arg" | grep -q -- "--$OP="
201 val=$(echo "$arg" | cut -f2 -d=)
206 if [ "$SAVE" = "save" ]
215 OP="${OP}=[${DEFAULT}]"
216 printf " --%-30s %s\n" "$OP" "$DOC"
221 valopt_core nosave "$@"
225 valopt_core save "$@"
228 # `opt OPTION_NAME DEFAULT DOC` extracts a boolean-valued option from
229 # command line, using the provided default value (0/1) for the option
230 # if not present, and saves it to the generated config.mk.
232 # `opt_nosave` is much the same, except that it does not save the
233 # result to config.mk (instead the script should use `putvar` itself
234 # later on to save it). `opt_core` is the core upon which the other
238 BOOL_OPTIONS="$BOOL_OPTIONS $2"
249 if [ $DEFAULT -eq 0 ]
252 DEFAULT_FLAG="disable"
255 DEFAULT_FLAG="enable"
261 for arg in $CFG_CONFIGURE_ARGS
263 if [ "$arg" = "--${FLAG}-${OP}" ]
265 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
266 FLAG=$(echo $FLAG | tr 'a-z' 'A-Z')
267 local V="CFG_${FLAG}_${OP}"
268 local V_PROVIDED="CFG_${FLAG}_${OP}_PROVIDED"
271 if [ "$SAVE" = "save" ]
275 elif [ "$arg" = "--${DEFAULT_FLAG}-${OP}" ]
277 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
278 DEFAULT_FLAG=$(echo $DEFAULT_FLAG | tr 'a-z' 'A-Z')
279 local V_PROVIDED="CFG_${DEFAULT_FLAG}_${OP}_PROVIDED"
288 printf " --%-30s %s\n" "$FLAG-$OP" "$DOC"
302 local V="CFG_${NAME}"
305 # If configure didn't set a value already, then check environment.
307 # (It is recommended that the configure script always check the
308 # environment before setting any values to envopt variables; see
309 # e.g. how CFG_CC is handled, where it first checks `-z "$CC"`,
310 # and issues msg if it ends up employing that provided value.)
317 # If script or environment provided a value, save it.
326 i686-w64-mingw32) echo i686-pc-windows-gnu ;;
327 x86_64-w64-mingw32) echo x86_64-pc-windows-gnu ;;
334 i686-pc-windows-gnu) echo i686-w64-mingw32 ;;
335 x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;;
340 # Prints the absolute path of a directory to stdout
343 # Unset CDPATH because it causes havok: it makes the destination unpredictable
344 # and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null
346 (unset CDPATH && cd "$_path" > /dev/null && pwd)
349 msg "looking for configure programs"
366 msg "inspecting environment"
368 CFG_OSTYPE=$(uname -s)
369 CFG_CPUTYPE=$(uname -m)
371 if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ]
373 # Darwin's `uname -s` lies and always returns i386. We have to use sysctl
375 if sysctl hw.optional.x86_64 | grep -q ': 1'
381 # The goal here is to come up with the same triple as LLVM would,
382 # at least for the subset of platforms we're willing to target.
387 CFG_OSTYPE=unknown-linux-gnu
391 CFG_OSTYPE=unknown-freebsd
395 CFG_OSTYPE=unknown-dragonfly
399 CFG_OSTYPE=unknown-bitrig
403 CFG_OSTYPE=unknown-openbsd
407 CFG_OSTYPE=apple-darwin
411 # msys' `uname` does not print gcc configuration, but prints msys
412 # configuration. so we cannot believe `uname -m`:
413 # msys1 is always i686 and msys2 is always x86_64.
414 # instead, msys defines $MSYSTEM which is MINGW32 on i686 and
417 CFG_OSTYPE=pc-windows-gnu
418 if [ "$MSYSTEM" = MINGW64 ]
425 CFG_OSTYPE=pc-windows-gnu
428 # Thad's Cygwin identifiers below
432 CFG_OSTYPE=pc-windows-gnu
438 CFG_OSTYPE=pc-windows-gnu
444 CFG_OSTYPE=pc-windows-gnu
450 CFG_OSTYPE=pc-windows-gnu
454 # Win 8 # uname -s on 64-bit cygwin does not contain WOW64, so simply use uname -m to detect arch (works in my install)
456 CFG_OSTYPE=pc-windows-gnu
458 # We do not detect other OS such as XP/2003 using 64 bit using uname.
459 # 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.
461 err "unknown OS type: $CFG_OSTYPE"
468 i386 | i486 | i686 | i786 | x86)
478 CFG_OSTYPE="${CFG_OSTYPE}eabihf"
485 # At some point, when ppc64[le] support happens, this will need to do
486 # something clever. For now it's safe to assume that we're only ever
487 # interested in building 32 bit.
488 powerpc | ppc | ppc64)
492 x86_64 | x86-64 | x64 | amd64)
497 err "unknown CPU type: $CFG_CPUTYPE"
500 # Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation
501 if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ]
503 # $SHELL does not exist in standard 'sh', so probably only exists
504 # if configure is running in an interactive bash shell. /usr/bin/env
505 # exists *everywhere*.
506 BIN_TO_PROBE="$SHELL"
507 if [ -z "$BIN_TO_PROBE" -a -e "/usr/bin/env" ]; then
508 BIN_TO_PROBE="/usr/bin/env"
510 if [ -n "$BIN_TO_PROBE" ]; then
511 file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
519 DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
521 CFG_SRC_DIR="$(abs_path $(dirname $0))/"
522 CFG_BUILD_DIR="$(pwd)/"
524 CFG_CONFIGURE_ARGS="$@"
528 if [ "$1" = "--help" ]
533 echo "Usage: $CFG_SELF [options]"
538 msg "recreating config.tmp"
541 step_msg "processing $CFG_SELF args"
547 opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
548 opt valgrind 0 "run tests with valgrind (memcheck by default)"
549 opt helgrind 0 "run tests with helgrind instead of memcheck"
550 opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
551 opt docs 1 "build standard library documentation"
552 opt compiler-docs 0 "build compiler documentation"
553 opt optimize-tests 1 "build tests with optimizations"
554 opt debuginfo-tests 0 "build tests with debugger metadata"
555 opt libcpp 1 "build with llvm with libc++ instead of libstdc++ when using clang"
556 opt llvm-assertions 0 "build LLVM with assertions"
557 opt debug-assertions 0 "build with debugging assertions"
558 opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
559 opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
560 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
561 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
562 opt rpath 0 "build rpaths into rustc itself"
563 # This is used by the automation to produce single-target nightlies
564 opt dist-host-only 0 "only install bins for the host architecture"
565 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
566 opt llvm-version-check 1 "don't check if the LLVM version is supported, build anyway"
568 # Optimization and debugging options. These may be overridden by the release channel, etc.
569 opt_nosave optimize 1 "build optimized rust code"
570 opt_nosave optimize-cxx 1 "build optimized C++ code"
571 opt_nosave optimize-llvm 1 "build optimized LLVM"
572 opt_nosave llvm-assertions 0 "build LLVM with assertions"
573 opt_nosave debug-assertions 0 "build with debugging assertions"
574 opt_nosave debuginfo 0 "build with debugger metadata"
575 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
577 valopt localstatedir "/var/lib" "local state directory"
578 valopt sysconfdir "/etc" "install system configuration files"
580 valopt datadir "${CFG_PREFIX}/share" "install data"
581 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
582 valopt llvm-root "" "set LLVM root"
583 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
584 valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
585 valopt android-cross-path "/opt/ndk_standalone" "Android NDK standalone path"
586 valopt release-channel "dev" "the name of the release channel to build"
587 valopt musl-root "/usr/local" "MUSL root installation directory"
589 # Many of these are saved below during the "writing configuration" step
590 # (others are conditionally saved).
591 opt_nosave manage-submodules 1 "let the build manage the git submodules"
592 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
593 opt_nosave jemalloc 1 "build liballoc with jemalloc"
595 valopt_nosave prefix "/usr/local" "set installation prefix"
596 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
597 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
598 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
599 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
601 # Temporarily support old triples until buildbots get updated
602 CFG_BUILD=$(to_llvm_triple $CFG_BUILD)
603 putvar CFG_BUILD # Yes, this creates a duplicate entry, but the last one wins.
604 CFG_HOST=$(to_llvm_triple $CFG_HOST)
605 CFG_TARGET=$(to_llvm_triple $CFG_TARGET)
607 # On windows we just store the libraries in the bin directory because
608 # there's no rpath. This is where the build system itself puts libraries;
609 # --libdir is used to configure the installation directory.
610 # FIXME: This needs to parameterized over target triples. Do it in platform.mk
611 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ]
613 CFG_LIBDIR_RELATIVE=bin
615 CFG_LIBDIR_RELATIVE=lib
618 valopt libdir "${CFG_PREFIX}/${CFG_LIBDIR_RELATIVE}" "install libraries (do not set it on windows platform)"
620 case "$CFG_LIBDIR" in
621 "$CFG_PREFIX"/*) CAT_INC=2;;
622 "$CFG_PREFIX"*) CAT_INC=1;;
624 err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
627 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
629 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] && [ "$CFG_LIBDIR_RELATIVE" != "bin" ]; then
630 err "libdir on windows should be set to 'bin'"
640 step_msg "validating $CFG_SELF args"
643 # Validate the release channel, and configure options
644 case "$CFG_RELEASE_CHANNEL" in
646 msg "overriding settings for $CFG_RELEASE_CHANNEL"
647 CFG_ENABLE_LLVM_ASSERTIONS=1
652 err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
656 # Adjust perf and debug options for debug mode
657 if [ -n "$CFG_ENABLE_DEBUG" ]; then
658 msg "debug mode enabled, setting performance options"
659 if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
660 msg "optimization not explicitly enabled, disabling optimization"
661 CFG_DISABLE_OPTIMIZE=1
662 CFG_DISABLE_OPTIMIZE_CXX=1
664 CFG_ENABLE_DEBUG_ASSERTIONS=1
665 CFG_ENABLE_DEBUG_JEMALLOC=1
666 CFG_ENABLE_DEBUGINFO=1
667 CFG_ENABLE_LLVM_ASSERTIONS=1
670 # OK, now write the debugging options
671 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
672 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
673 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
674 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
675 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
676 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
677 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
679 # A magic value that allows the compiler to use unstable features
680 # during the bootstrap even when doing so would normally be an error
681 # because of feature staging or because the build turns on
682 # warnings-as-errors and unstable features default to warnings. The
683 # build has to match this key in an env var. Meant to be a mild
684 # deterrent from users just turning on unstable features on the stable
686 # Basing CFG_BOOTSTRAP_KEY on CFG_BOOTSTRAP_KEY lets it get picked up
687 # during a Makefile reconfig.
688 CFG_BOOTSTRAP_KEY="${CFG_BOOTSTRAP_KEY-`date +%H:%M:%S`}"
689 putvar CFG_BOOTSTRAP_KEY
691 step_msg "looking for build programs"
693 probe_need CFG_CURLORWGET curl wget
694 probe_need CFG_PYTHON python2.7 python2.6 python2 python
696 python_version=$($CFG_PYTHON -V 2>&1)
697 if [ $(echo $python_version | grep -c '^Python 2\.[4567]') -ne 1 ]; then
698 err "Found $python_version, but LLVM requires Python 2.4-2.7"
701 # If we have no git directory then we are probably a tarball distribution
702 # and shouldn't attempt to load submodules
703 if [ ! -e ${CFG_SRC_DIR}.git ]
706 msg "git: no git directory. disabling submodules"
707 CFG_DISABLE_MANAGE_SUBMODULES=1
709 probe_need CFG_GIT git
712 # Use `md5sum` on GNU platforms, or `md5 -q` on BSD
714 probe CFG_MD5SUM md5sum
717 CFG_HASH_COMMAND="$CFG_MD5 -q | head -c 8"
718 elif [ -n "$CFG_MD5SUM" ]
720 CFG_HASH_COMMAND="$CFG_MD5SUM | head -c 8"
722 err 'could not find one of: md5 md5sum'
724 putvar CFG_HASH_COMMAND
726 probe CFG_CLANG clang++
727 probe CFG_CCACHE ccache
730 probe CFG_VALGRIND valgrind
733 probe CFG_ANTLR4 antlr4
736 probe CFG_BISON bison
737 probe CFG_PANDOC pandoc
738 probe CFG_XELATEX xelatex
742 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
743 # installed. Since `javac` is only used if `antlr4` is available,
744 # probe for it only in this case.
745 if [ ! -z "$CFG_ANTLR4" ]
747 probe CFG_JAVAC javac
750 if [ ! -z "$CFG_GDB" ]
752 # Store GDB's version
753 CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
754 putvar CFG_GDB_VERSION
757 if [ ! -z "$CFG_LLDB" ]
759 # Store LLDB's version
760 CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
761 putvar CFG_LLDB_VERSION
763 # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
764 # LLDB via the -P commandline options.
765 if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
767 CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
769 # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
770 if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
772 CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
775 putvar CFG_LLDB_PYTHON_DIR
779 step_msg "looking for target specific programs"
783 if [ ! -z "$CFG_PANDOC" ]
785 # Extract "MAJOR MINOR" from Pandoc's version number
786 PV_MAJOR_MINOR=$(pandoc --version | grep '^pandoc' |
787 sed -E 's/pandoc(.exe)? ([0-9]+)\.([0-9]+).*/\2 \3/')
792 # these patterns are shell globs, *not* regexps
793 PV_MAJOR=${PV_MAJOR_MINOR% *}
794 PV_MINOR=${PV_MAJOR_MINOR#* }
796 if [ "$PV_MAJOR" -lt "$MIN_PV_MAJOR" ] || [ "$PV_MINOR" -lt "$MIN_PV_MINOR" ]
798 step_msg "pandoc $PV_MAJOR.$PV_MINOR is too old. Need at least $MIN_PV_MAJOR.$MIN_PV_MINOR. Disabling"
804 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ]
809 if [ ! -z "$CFG_ENABLE_LOCAL_RUST" ]
811 system_rustc=$(which rustc)
812 if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
814 : # everything already configured
815 elif [ -n "$system_rustc" ]
817 # we assume that rustc is in a /bin directory
818 CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
820 err "no local rust to use"
823 CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
827 step_msg "failure while running $CMD --version"
830 step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
831 putvar CFG_LOCAL_RUST_ROOT
834 # Force freebsd to build with clang; gcc doesn't like us there
835 if [ $CFG_OSTYPE = unknown-freebsd ]
837 step_msg "on FreeBSD, forcing use of clang"
841 # Force bitrig to build with clang; gcc doesn't like us there
842 if [ $CFG_OSTYPE = unknown-bitrig ]
844 step_msg "on Bitrig, forcing use of clang, disabling jemalloc"
846 CFG_DISABLE_JEMALLOC=1
849 if [ -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
851 err "either clang or gcc is required"
854 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
855 # system, so if we find that gcc is clang, we should just use clang directly.
856 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
858 CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
861 step_msg "on OS X 10.9, forcing use of clang"
864 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
865 step_msg "older GCC found, using clang instead"
868 # on OS X, with xcode 5 and newer, certain developers may have
869 # cc, gcc and g++ point to a mixture of clang and gcc
870 # if so, this will create very strange build errors
871 # this last stanza is to detect some such problems and save the future rust
872 # contributor some time solving that issue.
873 # this detection could be generalized to other OSes aside from OS X
874 # but the issue seems most likely to happen on OS X
877 $1 --version 2> /dev/null | grep -q $2
879 # check that gcc, cc and g++ all point to the same compiler.
880 # note that for xcode 5, g++ points to clang, not clang++
881 if !((chk_cc gcc clang && chk_cc g++ clang) ||
882 (chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then
883 err "the gcc and g++ in your path point to different compilers.
884 Check which versions are in your path with gcc --version and g++ --version.
885 To resolve this problem, either fix your PATH or run configure with --enable-clang"
892 # Okay, at this point, we have made up our minds about whether we are
893 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
894 if [ ! -z "$CFG_ENABLE_CLANG" ]
896 putvar CFG_ENABLE_CLANG
899 # Same with jemalloc. save the setting here.
900 if [ ! -z "$CFG_DISABLE_JEMALLOC" ]
902 putvar CFG_DISABLE_JEMALLOC
905 if [ ! -z "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
907 step_msg "using custom LLVM at $CFG_LLVM_ROOT"
909 LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
910 LLVM_VERSION=$($LLVM_CONFIG --version)
912 case $LLVM_VERSION in
914 msg "found ok version of LLVM: $LLVM_VERSION"
917 err "bad LLVM version: $LLVM_VERSION, need >=3.5"
922 # Even when the user overrides the choice of CC, still try to detect
923 # clang to disable some clang-specific warnings. We here draw a
924 # distinction between:
926 # CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
927 # CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
929 # This distinction is important because there are some safeguards we
930 # would prefer to skip when merely CFG_USING_CLANG is set; but when
931 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
932 # running such safeguards.
936 msg "skipping compiler inference steps; using provided CC=$CC"
939 CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
942 step_msg "note, user-provided CC looks like clang; CC=$CC."
944 putvar CFG_USING_CLANG
947 if [ ! -z "$CFG_ENABLE_CLANG" ]
949 if [ -z "$CFG_CLANG" ]
951 err "clang requested but not found"
955 putvar CFG_USING_CLANG
961 if [ ! -z "$CFG_ENABLE_CLANG" ]
963 if [ -z "$CC" ] || [[ $CC == *clang ]]
965 CFG_CLANG_VERSION=$($CFG_CC \
968 | sed 's/.*\(version .*\)/\1/; s/.*based on \(LLVM .*\))/\1/' \
971 case $CFG_CLANG_VERSION in
972 (3.2* | 3.3* | 3.4* | 3.5* | 3.6*)
973 step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
981 err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn"
985 msg "skipping CFG_ENABLE_CLANG version check; provided CC=$CC"
989 if [ ! -z "$CFG_ENABLE_CCACHE" ]
993 if [ -z "$CFG_CCACHE" ]
995 err "ccache requested but not found"
998 CFG_CC="ccache $CFG_CC"
1002 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1004 err "either clang or gcc is required"
1007 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1008 # point in the script; after this point, script logic should inspect
1009 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1011 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS}
1018 # a little post-processing of various config values
1019 CFG_PREFIX=${CFG_PREFIX%/}
1020 CFG_MANDIR=${CFG_MANDIR%/}
1021 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1022 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1023 CFG_SUPPORTED_TARGET=""
1024 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1025 CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1028 # copy host-triples to target-triples so that hosts are a subset of targets
1030 for i in $CFG_HOST $CFG_TARGET;
1032 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1036 # check target-specific tool-chains
1037 for i in $CFG_TARGET
1040 for j in $CFG_SUPPORTED_TARGET
1048 if [ $L_CHECK = false ]
1050 err "unsupported target triples \"$i\" found"
1054 arm-linux-androideabi)
1056 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc ]
1058 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc not found"
1060 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ ]
1062 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ not found"
1064 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar ]
1066 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar not found"
1071 if [ $CFG_OSTYPE != apple-darwin ]
1073 err "The iOS target is only supported on Mac OS X"
1079 if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
1081 err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
1089 if [ ! -z "$CFG_PERF" ]
1091 HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1092 if [ -z "$HAVE_PERF_LOGFD" ];
1094 CFG_PERF_WITH_LOGFD=1
1095 putvar CFG_PERF_WITH_LOGFD
1099 step_msg "making directories"
1102 doc doc/std doc/extra \
1115 make_dir $t/rustllvm
1118 for t in $CFG_TARGET
1123 make_dir $t/rt/stage$s
1124 make_dir $t/rt/jemalloc
1127 arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1129 make_dir $t/rt/stage$s/$i
1136 for t in $CFG_TARGET
1138 # host lib dir stage0
1139 make_dir $h/stage0/lib
1141 # target bin dir stage0
1142 make_dir $h/stage0/lib/rustlib/$t/bin
1144 # target lib dir stage0
1145 make_dir $h/stage0/lib/rustlib/$t/lib
1150 make_dir $h/stage$i/bin
1153 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1156 make_dir $h/stage$i/test
1159 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1162 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1166 make_dir $h/test/run-pass
1167 make_dir $h/test/run-pass-valgrind
1168 make_dir $h/test/run-pass-fulldeps
1169 make_dir $h/test/run-fail
1170 make_dir $h/test/run-fail-fulldeps
1171 make_dir $h/test/compile-fail
1172 make_dir $h/test/parse-fail
1173 make_dir $h/test/compile-fail-fulldeps
1174 make_dir $h/test/bench
1175 make_dir $h/test/perf
1176 make_dir $h/test/pretty
1177 make_dir $h/test/debuginfo-gdb
1178 make_dir $h/test/debuginfo-lldb
1179 make_dir $h/test/codegen
1180 make_dir $h/test/rustdoc
1183 # Configure submodules
1184 step_msg "configuring submodules"
1186 # Have to be in the top of src directory for this
1187 if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ]
1191 msg "git: submodule sync"
1192 "${CFG_GIT}" submodule sync
1194 msg "git: submodule init"
1195 "${CFG_GIT}" submodule init
1197 # Disable submodules that we're not using
1198 if [ ! -z "${CFG_LLVM_ROOT}" ]; then
1199 msg "git: submodule deinit src/llvm"
1200 "${CFG_GIT}" submodule deinit src/llvm
1202 if [ ! -z "${CFG_JEMALLOC_ROOT}" ]; then
1203 msg "git: submodule deinit src/jemalloc"
1204 "${CFG_GIT}" submodule deinit src/jemalloc
1207 msg "git: submodule update"
1208 "${CFG_GIT}" submodule update
1209 need_ok "git failed"
1211 msg "git: submodule foreach sync"
1212 "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1213 need_ok "git failed"
1215 msg "git: submodule foreach update"
1216 "${CFG_GIT}" submodule update --recursive
1217 need_ok "git failed"
1219 # NB: this is just for the sake of getting the submodule SHA1 values
1220 # and status written into the build log.
1221 msg "git: submodule status"
1222 "${CFG_GIT}" submodule status --recursive
1224 msg "git: submodule clobber"
1225 "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1226 need_ok "git failed"
1227 "${CFG_GIT}" submodule foreach --recursive git checkout .
1228 need_ok "git failed"
1233 # Configure llvm, only if necessary
1234 step_msg "looking at LLVM"
1235 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1240 if [ -z $CFG_LLVM_ROOT ]
1242 LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1243 if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1245 LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized"
1246 # Just use LLVM straight from its build directory to
1247 # avoid 'make install' time
1248 LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1250 LLVM_DBG_OPTS="--enable-optimized"
1251 LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1253 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1255 LLVM_ASSERTION_OPTS="--disable-assertions"
1257 LLVM_ASSERTION_OPTS="--enable-assertions"
1258 LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts
1261 msg "not reconfiguring LLVM, external LLVM root"
1262 # The user is using their own LLVM
1264 LLVM_INST_DIR=$CFG_LLVM_ROOT
1269 if [ ${do_reconfigure} -ne 0 ]
1271 # because git is hilarious, it might have put the module index
1272 # in a couple places.
1273 index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1274 index2="${CFG_SRC_DIR}src/llvm/.git/index"
1275 for index in ${index1} ${index2}
1277 config_status="${LLVM_BUILD_DIR}/config.status"
1278 if test -e ${index} -a \
1279 -e ${config_status} -a \
1280 ${config_status} -nt ${index}
1282 msg "not reconfiguring LLVM, config.status is fresh"
1288 if [ ${do_reconfigure} -ne 0 ]
1290 # LLVM's configure doesn't recognize the new Windows triples yet
1291 gnu_t=$(to_gnu_triple $t)
1293 msg "configuring LLVM for $gnu_t"
1295 LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
1296 LLVM_BUILD="--build=$gnu_t"
1297 LLVM_HOST="--host=$gnu_t"
1298 LLVM_TARGET="--target=$gnu_t"
1300 # Disable unused LLVM features
1301 LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none"
1302 # Disable term-info, linkage of which comes in multiple forms,
1303 # making our snapshots incompatible (#9334)
1304 LLVM_OPTS="$LLVM_OPTS --disable-terminfo"
1305 # Try to have LLVM pull in as few dependencies as possible (#9397)
1306 LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi"
1308 # Use win32 native thread/lock apis instead of pthread wrapper.
1309 # (llvm's configure tries to find pthread first, so we have to disable it explicitly.)
1310 # Also note that pthreads works badly on mingw-w64 systems: #8996
1311 case "$CFG_BUILD" in
1313 LLVM_OPTS="$LLVM_OPTS --disable-pthreads"
1319 LLVM_CXX_32="ccache clang++ -Qunused-arguments"
1320 LLVM_CC_32="ccache clang -Qunused-arguments"
1322 LLVM_CXX_64="ccache clang++ -Qunused-arguments"
1323 LLVM_CC_64="ccache clang -Qunused-arguments"
1326 LLVM_CXX_32="clang++ -Qunused-arguments"
1327 LLVM_CC_32="clang -Qunused-arguments"
1329 LLVM_CXX_64="clang++ -Qunused-arguments"
1330 LLVM_CC_64="clang -Qunused-arguments"
1333 LLVM_CXX_32="ccache g++"
1334 LLVM_CC_32="ccache gcc"
1336 LLVM_CXX_64="ccache g++"
1337 LLVM_CC_64="ccache gcc"
1348 msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1357 case "$CFG_CPUTYPE" in
1359 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1360 LLVM_CC_32="$LLVM_CC_32 -m32"
1362 LLVM_CFLAGS_32="-m32"
1363 LLVM_CXXFLAGS_32="-m32"
1364 LLVM_LDFLAGS_32="-m32"
1370 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1371 LLVM_CC_32="$LLVM_CC_32 -m32"
1385 if echo $t | grep -q x86_64
1387 LLVM_CXX=$LLVM_CXX_64
1389 LLVM_CFLAGS=$LLVM_CFLAGS_64
1390 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1391 LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1393 LLVM_CXX=$LLVM_CXX_32
1395 LLVM_CFLAGS=$LLVM_CFLAGS_32
1396 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1397 LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1403 CXXFLAGS=$LLVM_CXXFLAGS
1404 LDFLAGS=$LLVM_LDFLAGS
1406 if [ -z "$CFG_DISABLE_LIBCPP" ] && [ -n "$CFG_USING_CLANG" ]; then
1407 LLVM_OPTS="$LLVM_OPTS --enable-libcpp"
1410 LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \
1411 $LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON"
1413 msg "configuring LLVM with:"
1423 case $CFG_SRC_DIR in
1424 /* | [a-z]:* | [A-Z]:*)
1425 ${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS
1428 ${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \
1432 need_ok "LLVM configure failed"
1437 # Construct variables for LLVM build and install directories for
1438 # each target. These will be named
1439 # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1440 # target_triple will be converted to underscore, because bash
1441 # variables can't contain hyphens. The makefile will then have to
1443 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1444 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1445 eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1446 eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1450 step_msg "writing configuration"
1453 putvar CFG_BUILD_DIR
1456 putvar CFG_CONFIGURE_ARGS
1460 putvar CFG_LIBDIR_RELATIVE
1461 putvar CFG_DISABLE_MANAGE_SUBMODULES
1462 putvar CFG_ANDROID_CROSS_PATH
1465 # Avoid spurious warnings from clang by feeding it original source on
1466 # ccache-miss rather than preprocessed input.
1467 if [ ! -z "$CFG_ENABLE_CCACHE" ] && [ ! -z "$CFG_USING_CLANG" ]
1470 putvar CFG_CCACHE_CPP2
1473 if [ ! -z "$CFG_ENABLE_CCACHE" ]
1475 CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1476 putvar CFG_CCACHE_BASEDIR
1480 if [ ! -z $BAD_PANDOC ]
1486 putvar CFG_LLVM_SRC_DIR
1490 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1491 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1492 putvar $CFG_LLVM_BUILD_DIR
1493 putvar $CFG_LLVM_INST_DIR
1496 # Munge any paths that appear in config.mk back to posix-y
1497 cp config.tmp config.tmp.bak
1498 sed -e 's@ \([a-zA-Z]\):[/\\]@ /\1/@g;' <config.tmp.bak >config.tmp
1499 rm -f config.tmp.bak
1502 copy_if_changed ${CFG_SRC_DIR}Makefile.in ./Makefile
1503 move_if_changed config.tmp config.mk
1507 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1508 step_msg "configured in release mode. for development consider --enable-debug"
1513 msg "run \`make help\`"