14 echo "configure: WARNING: $1"
18 echo "configure: error: $1"
35 if command -v $1 >/dev/null 2>&1
36 then msg "found program $1"
37 else err "need program $1"
51 msg "leaving $2 unchanged"
54 chmod u-w $2 # make copied artifact read-only
61 msg "leaving $2 unchanged"
64 chmod u-w $2 # make moved artifact read-only
74 printf "configure: %-20s := %.35s ...\n" $1 "$T"
76 printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
78 printf "%-20s := %s\n" $1 "$T" >>config.tmp
87 printf "configure: %-20s := %.35s ...\n" $1 "$T"
89 printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
93 printf "%-20s := \n" $1 >>config.tmp
95 printf "%-20s := \"%s\"\n" $1 "$T" >>config.tmp
106 T=$(command -v $P 2>&1)
109 VER0=$($P --version 2>/dev/null \
110 | grep -o '[vV]\?[0-9][0-9.][a-z0-9.-]*' | head -1 )
111 if [ $? -eq 0 -a "x${VER0}" != "x" ]
133 err "needed, but unable to find any of: $*"
138 for arg in $CFG_CONFIGURE_ARGS
141 for option in $BOOL_OPTIONS
143 if test --disable-$option = $arg
147 if test --enable-$option = $arg
152 for option in $VAL_OPTIONS
154 if echo "$arg" | grep -q -- "--$option="
159 if [ "$arg" = "--help" ]
162 echo "No more help available for Configure options,"
163 echo "check the Wiki or join our IRC channel"
166 if test $isArgValid -eq 0
168 err "Option '$arg' is not recognized"
174 # `valopt OPTION_NAME DEFAULT DOC` extracts a string-valued option
175 # from command line, using provided default value for the option if
176 # not present, and saves it to the generated config.mk.
178 # `valopt_nosave` is much the same, except that it does not save the
179 # result to config.mk (instead the script should use `putvar` itself
180 # later on to save it). `valopt_core` is the core upon which the
181 # other two are built.
184 VAL_OPTIONS="$VAL_OPTIONS $2"
195 local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
197 local V_PROVIDED="${V}_PROVIDED"
199 for arg in $CFG_CONFIGURE_ARGS
201 if echo "$arg" | grep -q -- "--$OP="
203 val=$(echo "$arg" | cut -f2 -d=)
208 if [ "$SAVE" = "save" ]
217 OP="${OP}=[${DEFAULT}]"
218 printf " --%-30s %s\n" "$OP" "$DOC"
223 valopt_core nosave "$@"
227 valopt_core save "$@"
230 # `opt OPTION_NAME DEFAULT DOC` extracts a boolean-valued option from
231 # command line, using the provided default value (0/1) for the option
232 # if not present, and saves it to the generated config.mk.
234 # `opt_nosave` is much the same, except that it does not save the
235 # result to config.mk (instead the script should use `putvar` itself
236 # later on to save it). `opt_core` is the core upon which the other
240 BOOL_OPTIONS="$BOOL_OPTIONS $2"
251 if [ $DEFAULT -eq 0 ]
254 DEFAULT_FLAG="disable"
257 DEFAULT_FLAG="enable"
263 for arg in $CFG_CONFIGURE_ARGS
265 if [ "$arg" = "--${FLAG}-${OP}" ]
267 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
268 FLAG=$(echo $FLAG | tr 'a-z' 'A-Z')
269 local V="CFG_${FLAG}_${OP}"
270 local V_PROVIDED="CFG_${FLAG}_${OP}_PROVIDED"
273 if [ "$SAVE" = "save" ]
277 elif [ "$arg" = "--${DEFAULT_FLAG}-${OP}" ]
279 OP=$(echo $OP | tr 'a-z-' 'A-Z_')
280 DEFAULT_FLAG=$(echo $DEFAULT_FLAG | tr 'a-z' 'A-Z')
281 local V_PROVIDED="CFG_${DEFAULT_FLAG}_${OP}_PROVIDED"
290 printf " --%-30s %s\n" "$FLAG-$OP" "$DOC"
304 local V="CFG_${NAME}"
307 # If configure didn't set a value already, then check environment.
309 # (It is recommended that the configure script always check the
310 # environment before setting any values to envopt variables; see
311 # e.g. how CFG_CC is handled, where it first checks `-z "$CC"`,
312 # and issues msg if it ends up employing that provided value.)
319 # If script or environment provided a value, save it.
328 i686-w64-mingw32) echo i686-pc-windows-gnu ;;
329 x86_64-w64-mingw32) echo x86_64-pc-windows-gnu ;;
336 i686-pc-windows-gnu) echo i686-w64-mingw32 ;;
337 x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;;
342 # Prints the absolute path of a directory to stdout
345 # Unset CDPATH because it causes havok: it makes the destination unpredictable
346 # and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null
348 (unset CDPATH && cd "$_path" > /dev/null && pwd)
351 msg "looking for configure programs"
368 msg "inspecting environment"
370 CFG_OSTYPE=$(uname -s)
371 CFG_CPUTYPE=$(uname -m)
373 if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ]
375 # Darwin's `uname -s` lies and always returns i386. We have to use sysctl
377 if sysctl hw.optional.x86_64 | grep -q ': 1'
383 # The goal here is to come up with the same triple as LLVM would,
384 # at least for the subset of platforms we're willing to target.
389 CFG_OSTYPE=unknown-linux-gnu
393 CFG_OSTYPE=unknown-freebsd
397 CFG_OSTYPE=unknown-dragonfly
401 CFG_OSTYPE=unknown-bitrig
405 CFG_OSTYPE=unknown-openbsd
409 CFG_OSTYPE=apple-darwin
413 # msys' `uname` does not print gcc configuration, but prints msys
414 # configuration. so we cannot believe `uname -m`:
415 # msys1 is always i686 and msys2 is always x86_64.
416 # instead, msys defines $MSYSTEM which is MINGW32 on i686 and
419 CFG_OSTYPE=pc-windows-gnu
420 if [ "$MSYSTEM" = MINGW64 ]
427 CFG_OSTYPE=pc-windows-gnu
430 # Thad's Cygwin identifiers below
434 CFG_OSTYPE=pc-windows-gnu
440 CFG_OSTYPE=pc-windows-gnu
446 CFG_OSTYPE=pc-windows-gnu
452 CFG_OSTYPE=pc-windows-gnu
456 # Win 8 # uname -s on 64-bit cygwin does not contain WOW64, so simply use uname -m to detect arch (works in my install)
458 CFG_OSTYPE=pc-windows-gnu
460 # We do not detect other OS such as XP/2003 using 64 bit using uname.
461 # 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.
463 err "unknown OS type: $CFG_OSTYPE"
470 i386 | i486 | i686 | i786 | x86)
480 CFG_OSTYPE="${CFG_OSTYPE}eabihf"
487 # At some point, when ppc64[le] support happens, this will need to do
488 # something clever. For now it's safe to assume that we're only ever
489 # interested in building 32 bit.
490 powerpc | ppc | ppc64)
494 x86_64 | x86-64 | x64 | amd64)
499 err "unknown CPU type: $CFG_CPUTYPE"
502 # Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation
503 if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ]
505 # $SHELL does not exist in standard 'sh', so probably only exists
506 # if configure is running in an interactive bash shell. /usr/bin/env
507 # exists *everywhere*.
508 BIN_TO_PROBE="$SHELL"
509 if [ -z "$BIN_TO_PROBE" -a -e "/usr/bin/env" ]; then
510 BIN_TO_PROBE="/usr/bin/env"
512 if [ -n "$BIN_TO_PROBE" ]; then
513 file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
521 DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
523 CFG_SRC_DIR="$(abs_path $(dirname $0))/"
524 CFG_BUILD_DIR="$(pwd)/"
526 CFG_CONFIGURE_ARGS="$@"
530 if [ "$1" = "--help" ]
535 echo "Usage: $CFG_SELF [options]"
540 msg "recreating config.tmp"
543 step_msg "processing $CFG_SELF args"
549 opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
550 opt valgrind 0 "run tests with valgrind (memcheck by default)"
551 opt helgrind 0 "run tests with helgrind instead of memcheck"
552 opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
553 opt docs 1 "build standard library documentation"
554 opt compiler-docs 0 "build compiler documentation"
555 opt optimize-tests 1 "build tests with optimizations"
556 opt debuginfo-tests 0 "build tests with debugger metadata"
557 opt libcpp 1 "build with llvm with libc++ instead of libstdc++ when using clang"
558 opt llvm-assertions 0 "build LLVM with assertions"
559 opt debug-assertions 0 "build with debugging assertions"
560 opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
561 opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
562 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
563 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
564 opt rpath 0 "build rpaths into rustc itself"
565 # This is used by the automation to produce single-target nightlies
566 opt dist-host-only 0 "only install bins for the host architecture"
567 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
568 opt llvm-version-check 1 "don't check if the LLVM version is supported, build anyway"
570 # Optimization and debugging options. These may be overridden by the release channel, etc.
571 opt_nosave optimize 1 "build optimized rust code"
572 opt_nosave optimize-cxx 1 "build optimized C++ code"
573 opt_nosave optimize-llvm 1 "build optimized LLVM"
574 opt_nosave llvm-assertions 0 "build LLVM with assertions"
575 opt_nosave debug-assertions 0 "build with debugging assertions"
576 opt_nosave debuginfo 0 "build with debugger metadata"
577 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
579 valopt localstatedir "/var/lib" "local state directory"
580 valopt sysconfdir "/etc" "install system configuration files"
582 valopt datadir "${CFG_PREFIX}/share" "install data"
583 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
584 valopt llvm-root "" "set LLVM root"
585 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
586 valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
587 valopt android-cross-path "/opt/ndk_standalone" "Android NDK standalone path"
588 valopt release-channel "dev" "the name of the release channel to build"
589 valopt musl-root "/usr/local" "MUSL root installation directory"
591 # Many of these are saved below during the "writing configuration" step
592 # (others are conditionally saved).
593 opt_nosave manage-submodules 1 "let the build manage the git submodules"
594 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
595 opt_nosave jemalloc 1 "build liballoc with jemalloc"
597 valopt_nosave prefix "/usr/local" "set installation prefix"
598 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
599 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
600 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
601 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
603 # Temporarily support old triples until buildbots get updated
604 CFG_BUILD=$(to_llvm_triple $CFG_BUILD)
605 putvar CFG_BUILD # Yes, this creates a duplicate entry, but the last one wins.
606 CFG_HOST=$(to_llvm_triple $CFG_HOST)
607 CFG_TARGET=$(to_llvm_triple $CFG_TARGET)
609 # On windows we just store the libraries in the bin directory because
610 # there's no rpath. This is where the build system itself puts libraries;
611 # --libdir is used to configure the installation directory.
612 # FIXME: This needs to parameterized over target triples. Do it in platform.mk
613 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ]
615 CFG_LIBDIR_RELATIVE=bin
617 CFG_LIBDIR_RELATIVE=lib
620 valopt libdir "${CFG_PREFIX}/${CFG_LIBDIR_RELATIVE}" "install libraries (do not set it on windows platform)"
622 case "$CFG_LIBDIR" in
623 "$CFG_PREFIX"/*) CAT_INC=2;;
624 "$CFG_PREFIX"*) CAT_INC=1;;
626 err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
629 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
631 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] && [ "$CFG_LIBDIR_RELATIVE" != "bin" ]; then
632 err "libdir on windows should be set to 'bin'"
642 step_msg "validating $CFG_SELF args"
645 # Validate the release channel, and configure options
646 case "$CFG_RELEASE_CHANNEL" in
648 msg "overriding settings for $CFG_RELEASE_CHANNEL"
649 CFG_ENABLE_LLVM_ASSERTIONS=1
654 err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
658 # Adjust perf and debug options for debug mode
659 if [ -n "$CFG_ENABLE_DEBUG" ]; then
660 msg "debug mode enabled, setting performance options"
661 if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
662 msg "optimization not explicitly enabled, disabling optimization"
663 CFG_DISABLE_OPTIMIZE=1
664 CFG_DISABLE_OPTIMIZE_CXX=1
666 CFG_ENABLE_DEBUG_ASSERTIONS=1
667 CFG_ENABLE_DEBUG_JEMALLOC=1
668 CFG_ENABLE_DEBUGINFO=1
669 CFG_ENABLE_LLVM_ASSERTIONS=1
672 # OK, now write the debugging options
673 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
674 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
675 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
676 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
677 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
678 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
679 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
681 # A magic value that allows the compiler to use unstable features
682 # during the bootstrap even when doing so would normally be an error
683 # because of feature staging or because the build turns on
684 # warnings-as-errors and unstable features default to warnings. The
685 # build has to match this key in an env var. Meant to be a mild
686 # deterrent from users just turning on unstable features on the stable
688 # Basing CFG_BOOTSTRAP_KEY on CFG_BOOTSTRAP_KEY lets it get picked up
689 # during a Makefile reconfig.
690 CFG_BOOTSTRAP_KEY="${CFG_BOOTSTRAP_KEY-`date +%H:%M:%S`}"
691 putvar CFG_BOOTSTRAP_KEY
693 step_msg "looking for build programs"
695 probe_need CFG_CURLORWGET curl wget
696 probe_need CFG_PYTHON python2.7 python2.6 python2 python
698 python_version=$($CFG_PYTHON -V 2>&1)
699 if [ $(echo $python_version | grep -c '^Python 2\.[4567]') -ne 1 ]; then
700 err "Found $python_version, but LLVM requires Python 2.4-2.7"
703 # If we have no git directory then we are probably a tarball distribution
704 # and shouldn't attempt to load submodules
705 if [ ! -e ${CFG_SRC_DIR}.git ]
708 msg "git: no git directory. disabling submodules"
709 CFG_DISABLE_MANAGE_SUBMODULES=1
711 probe_need CFG_GIT git
714 # Use `md5sum` on GNU platforms, or `md5 -q` on BSD
716 probe CFG_MD5SUM md5sum
719 CFG_HASH_COMMAND="$CFG_MD5 -q | head -c 8"
720 elif [ -n "$CFG_MD5SUM" ]
722 CFG_HASH_COMMAND="$CFG_MD5SUM | head -c 8"
724 err 'could not find one of: md5 md5sum'
726 putvar CFG_HASH_COMMAND
728 probe CFG_CLANG clang++
729 probe CFG_CCACHE ccache
732 probe CFG_VALGRIND valgrind
735 probe CFG_ANTLR4 antlr4
738 probe CFG_BISON bison
739 probe CFG_PANDOC pandoc
740 probe CFG_XELATEX xelatex
744 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
745 # installed. Since `javac` is only used if `antlr4` is available,
746 # probe for it only in this case.
747 if [ ! -z "$CFG_ANTLR4" ]
749 probe CFG_JAVAC javac
752 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
753 # only disabled if you opt out.
754 if [ -z "$CFG_VALGRIND" ]
756 # If the user has explicitly asked for valgrind tests, then fail
757 if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
759 err "No valgrind present, but valgrind tests explicitly requested"
761 CFG_DISABLE_VALGRIND_RPASS=1
762 putvar CFG_DISABLE_VALGRIND_RPASS
766 if [ ! -z "$CFG_GDB" ]
768 # Store GDB's version
769 CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
770 putvar CFG_GDB_VERSION
773 if [ ! -z "$CFG_LLDB" ]
775 # Store LLDB's version
776 CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
777 putvar CFG_LLDB_VERSION
779 # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
780 # LLDB via the -P commandline options.
781 if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
783 CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
785 # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
786 if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
788 CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
791 putvar CFG_LLDB_PYTHON_DIR
795 step_msg "looking for target specific programs"
799 if [ ! -z "$CFG_PANDOC" ]
801 # Extract "MAJOR MINOR" from Pandoc's version number
802 PV_MAJOR_MINOR=$(pandoc --version | grep '^pandoc' |
803 sed -E 's/pandoc(.exe)? ([0-9]+)\.([0-9]+).*/\2 \3/')
808 # these patterns are shell globs, *not* regexps
809 PV_MAJOR=${PV_MAJOR_MINOR% *}
810 PV_MINOR=${PV_MAJOR_MINOR#* }
812 if [ "$PV_MAJOR" -lt "$MIN_PV_MAJOR" ] || [ "$PV_MINOR" -lt "$MIN_PV_MINOR" ]
814 step_msg "pandoc $PV_MAJOR.$PV_MINOR is too old. Need at least $MIN_PV_MAJOR.$MIN_PV_MINOR. Disabling"
820 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ]
825 if [ ! -z "$CFG_ENABLE_LOCAL_RUST" ]
827 system_rustc=$(which rustc)
828 if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
830 : # everything already configured
831 elif [ -n "$system_rustc" ]
833 # we assume that rustc is in a /bin directory
834 CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
836 err "no local rust to use"
839 CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
843 step_msg "failure while running $CMD --version"
846 step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
847 putvar CFG_LOCAL_RUST_ROOT
850 # Force freebsd to build with clang; gcc doesn't like us there
851 if [ $CFG_OSTYPE = unknown-freebsd ]
853 step_msg "on FreeBSD, forcing use of clang"
857 # Force bitrig to build with clang; gcc doesn't like us there
858 if [ $CFG_OSTYPE = unknown-bitrig ]
860 step_msg "on Bitrig, forcing use of clang, disabling jemalloc"
862 CFG_DISABLE_JEMALLOC=1
865 if [ -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
867 err "either clang or gcc is required"
870 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
871 # system, so if we find that gcc is clang, we should just use clang directly.
872 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
874 CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
877 step_msg "on OS X >=10.9, forcing use of clang"
880 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
881 step_msg "older GCC found, using clang instead"
884 # on OS X, with xcode 5 and newer, certain developers may have
885 # cc, gcc and g++ point to a mixture of clang and gcc
886 # if so, this will create very strange build errors
887 # this last stanza is to detect some such problems and save the future rust
888 # contributor some time solving that issue.
889 # this detection could be generalized to other OSes aside from OS X
890 # but the issue seems most likely to happen on OS X
893 $1 --version 2> /dev/null | grep -q $2
895 # check that gcc, cc and g++ all point to the same compiler.
896 # note that for xcode 5, g++ points to clang, not clang++
897 if !((chk_cc gcc clang && chk_cc g++ clang) ||
898 (chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then
899 err "the gcc and g++ in your path point to different compilers.
900 Check which versions are in your path with gcc --version and g++ --version.
901 To resolve this problem, either fix your PATH or run configure with --enable-clang"
908 # Okay, at this point, we have made up our minds about whether we are
909 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
910 if [ ! -z "$CFG_ENABLE_CLANG" ]
912 putvar CFG_ENABLE_CLANG
915 # Same with jemalloc. save the setting here.
916 if [ ! -z "$CFG_DISABLE_JEMALLOC" ]
918 putvar CFG_DISABLE_JEMALLOC
921 if [ ! -z "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
923 step_msg "using custom LLVM at $CFG_LLVM_ROOT"
925 LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
926 LLVM_VERSION=$($LLVM_CONFIG --version)
928 case $LLVM_VERSION in
930 msg "found ok version of LLVM: $LLVM_VERSION"
933 err "bad LLVM version: $LLVM_VERSION, need >=3.5"
938 # Even when the user overrides the choice of CC, still try to detect
939 # clang to disable some clang-specific warnings. We here draw a
940 # distinction between:
942 # CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
943 # CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
945 # This distinction is important because there are some safeguards we
946 # would prefer to skip when merely CFG_USING_CLANG is set; but when
947 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
948 # running such safeguards.
952 msg "skipping compiler inference steps; using provided CC=$CC"
955 CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
958 step_msg "note, user-provided CC looks like clang; CC=$CC."
960 putvar CFG_USING_CLANG
963 if [ ! -z "$CFG_ENABLE_CLANG" ]
965 if [ -z "$CFG_CLANG" ]
967 err "clang requested but not found"
971 putvar CFG_USING_CLANG
977 if [ ! -z "$CFG_ENABLE_CLANG" ]
979 if [ -z "$CC" ] || [[ $CC == *clang ]]
981 CFG_CLANG_VERSION=$($CFG_CC \
984 | sed 's/.*\(version .*\)/\1/; s/.*based on \(LLVM .*\))/\1/' \
987 case $CFG_CLANG_VERSION in
988 (3.2* | 3.3* | 3.4* | 3.5* | 3.6*)
989 step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
997 err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn"
1001 msg "skipping CFG_ENABLE_CLANG version check; provided CC=$CC"
1005 if [ ! -z "$CFG_ENABLE_CCACHE" ]
1009 if [ -z "$CFG_CCACHE" ]
1011 err "ccache requested but not found"
1014 CFG_CC="ccache $CFG_CC"
1018 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1020 err "either clang or gcc is required"
1023 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1024 # point in the script; after this point, script logic should inspect
1025 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1027 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS}
1034 # a little post-processing of various config values
1035 CFG_PREFIX=${CFG_PREFIX%/}
1036 CFG_MANDIR=${CFG_MANDIR%/}
1037 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1038 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1039 CFG_SUPPORTED_TARGET=""
1040 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1041 CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1044 # copy host-triples to target-triples so that hosts are a subset of targets
1046 for i in $CFG_HOST $CFG_TARGET;
1048 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1052 # check target-specific tool-chains
1053 for i in $CFG_TARGET
1056 for j in $CFG_SUPPORTED_TARGET
1064 if [ $L_CHECK = false ]
1066 err "unsupported target triples \"$i\" found"
1070 arm-linux-androideabi)
1072 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc ]
1074 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc not found"
1076 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ ]
1078 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ not found"
1080 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar ]
1082 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar not found"
1087 if [ $CFG_OSTYPE != apple-darwin ]
1089 err "The iOS target is only supported on Mac OS X"
1095 if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
1097 err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
1105 if [ ! -z "$CFG_PERF" ]
1107 HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1108 if [ -z "$HAVE_PERF_LOGFD" ];
1110 CFG_PERF_WITH_LOGFD=1
1111 putvar CFG_PERF_WITH_LOGFD
1115 step_msg "making directories"
1118 doc doc/std doc/extra \
1131 make_dir $t/rustllvm
1134 for t in $CFG_TARGET
1139 make_dir $t/rt/stage$s
1140 make_dir $t/rt/jemalloc
1143 arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1145 make_dir $t/rt/stage$s/$i
1152 for t in $CFG_TARGET
1154 # host lib dir stage0
1155 make_dir $h/stage0/lib
1157 # target bin dir stage0
1158 make_dir $h/stage0/lib/rustlib/$t/bin
1160 # target lib dir stage0
1161 make_dir $h/stage0/lib/rustlib/$t/lib
1166 make_dir $h/stage$i/bin
1169 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1172 make_dir $h/stage$i/test
1175 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1178 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1182 make_dir $h/test/run-pass
1183 make_dir $h/test/run-pass-valgrind
1184 make_dir $h/test/run-pass-fulldeps
1185 make_dir $h/test/run-fail
1186 make_dir $h/test/run-fail-fulldeps
1187 make_dir $h/test/compile-fail
1188 make_dir $h/test/parse-fail
1189 make_dir $h/test/compile-fail-fulldeps
1190 make_dir $h/test/bench
1191 make_dir $h/test/perf
1192 make_dir $h/test/pretty
1193 make_dir $h/test/debuginfo-gdb
1194 make_dir $h/test/debuginfo-lldb
1195 make_dir $h/test/codegen
1196 make_dir $h/test/rustdoc
1199 # Configure submodules
1200 step_msg "configuring submodules"
1202 # Have to be in the top of src directory for this
1203 if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ]
1207 msg "git: submodule sync"
1208 "${CFG_GIT}" submodule sync
1210 msg "git: submodule init"
1211 "${CFG_GIT}" submodule init
1213 # Disable submodules that we're not using
1214 if [ ! -z "${CFG_LLVM_ROOT}" ]; then
1215 msg "git: submodule deinit src/llvm"
1216 "${CFG_GIT}" submodule deinit src/llvm
1218 if [ ! -z "${CFG_JEMALLOC_ROOT}" ]; then
1219 msg "git: submodule deinit src/jemalloc"
1220 "${CFG_GIT}" submodule deinit src/jemalloc
1223 msg "git: submodule update"
1224 "${CFG_GIT}" submodule update
1225 need_ok "git failed"
1227 msg "git: submodule foreach sync"
1228 "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1229 need_ok "git failed"
1231 msg "git: submodule foreach update"
1232 "${CFG_GIT}" submodule update --recursive
1233 need_ok "git failed"
1235 # NB: this is just for the sake of getting the submodule SHA1 values
1236 # and status written into the build log.
1237 msg "git: submodule status"
1238 "${CFG_GIT}" submodule status --recursive
1240 msg "git: submodule clobber"
1241 "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1242 need_ok "git failed"
1243 "${CFG_GIT}" submodule foreach --recursive git checkout .
1244 need_ok "git failed"
1249 # Configure llvm, only if necessary
1250 step_msg "looking at LLVM"
1251 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1256 if [ -z $CFG_LLVM_ROOT ]
1258 LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1259 if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1261 LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized"
1262 # Just use LLVM straight from its build directory to
1263 # avoid 'make install' time
1264 LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1266 LLVM_DBG_OPTS="--enable-optimized"
1267 LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1269 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1271 LLVM_ASSERTION_OPTS="--disable-assertions"
1273 LLVM_ASSERTION_OPTS="--enable-assertions"
1274 LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts
1277 msg "not reconfiguring LLVM, external LLVM root"
1278 # The user is using their own LLVM
1280 LLVM_INST_DIR=$CFG_LLVM_ROOT
1285 if [ ${do_reconfigure} -ne 0 ]
1287 # because git is hilarious, it might have put the module index
1288 # in a couple places.
1289 index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1290 index2="${CFG_SRC_DIR}src/llvm/.git/index"
1291 for index in ${index1} ${index2}
1293 config_status="${LLVM_BUILD_DIR}/config.status"
1294 if test -e ${index} -a \
1295 -e ${config_status} -a \
1296 ${config_status} -nt ${index}
1298 msg "not reconfiguring LLVM, config.status is fresh"
1304 if [ ${do_reconfigure} -ne 0 ]
1306 # LLVM's configure doesn't recognize the new Windows triples yet
1307 gnu_t=$(to_gnu_triple $t)
1309 msg "configuring LLVM for $gnu_t"
1311 LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
1312 LLVM_BUILD="--build=$gnu_t"
1313 LLVM_HOST="--host=$gnu_t"
1314 LLVM_TARGET="--target=$gnu_t"
1316 # Disable unused LLVM features
1317 LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none"
1318 # Disable term-info, linkage of which comes in multiple forms,
1319 # making our snapshots incompatible (#9334)
1320 LLVM_OPTS="$LLVM_OPTS --disable-terminfo"
1321 # Try to have LLVM pull in as few dependencies as possible (#9397)
1322 LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi"
1324 # Use win32 native thread/lock apis instead of pthread wrapper.
1325 # (llvm's configure tries to find pthread first, so we have to disable it explicitly.)
1326 # Also note that pthreads works badly on mingw-w64 systems: #8996
1327 case "$CFG_BUILD" in
1329 LLVM_OPTS="$LLVM_OPTS --disable-pthreads"
1335 LLVM_CXX_32="ccache clang++ -Qunused-arguments"
1336 LLVM_CC_32="ccache clang -Qunused-arguments"
1338 LLVM_CXX_64="ccache clang++ -Qunused-arguments"
1339 LLVM_CC_64="ccache clang -Qunused-arguments"
1342 LLVM_CXX_32="clang++ -Qunused-arguments"
1343 LLVM_CC_32="clang -Qunused-arguments"
1345 LLVM_CXX_64="clang++ -Qunused-arguments"
1346 LLVM_CC_64="clang -Qunused-arguments"
1349 LLVM_CXX_32="ccache g++"
1350 LLVM_CC_32="ccache gcc"
1352 LLVM_CXX_64="ccache g++"
1353 LLVM_CC_64="ccache gcc"
1364 msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1373 case "$CFG_CPUTYPE" in
1375 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1376 LLVM_CC_32="$LLVM_CC_32 -m32"
1378 LLVM_CFLAGS_32="-m32"
1379 LLVM_CXXFLAGS_32="-m32"
1380 LLVM_LDFLAGS_32="-m32"
1386 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1387 LLVM_CC_32="$LLVM_CC_32 -m32"
1401 if echo $t | grep -q x86_64
1403 LLVM_CXX=$LLVM_CXX_64
1405 LLVM_CFLAGS=$LLVM_CFLAGS_64
1406 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1407 LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1409 LLVM_CXX=$LLVM_CXX_32
1411 LLVM_CFLAGS=$LLVM_CFLAGS_32
1412 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1413 LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1419 CXXFLAGS=$LLVM_CXXFLAGS
1420 LDFLAGS=$LLVM_LDFLAGS
1422 if [ -z "$CFG_DISABLE_LIBCPP" ] && [ -n "$CFG_USING_CLANG" ]; then
1423 LLVM_OPTS="$LLVM_OPTS --enable-libcpp"
1426 LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \
1427 $LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON"
1429 msg "configuring LLVM with:"
1439 case $CFG_SRC_DIR in
1440 /* | [a-z]:* | [A-Z]:*)
1441 ${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS
1444 ${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \
1448 need_ok "LLVM configure failed"
1453 # Construct variables for LLVM build and install directories for
1454 # each target. These will be named
1455 # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1456 # target_triple will be converted to underscore, because bash
1457 # variables can't contain hyphens. The makefile will then have to
1459 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1460 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1461 eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1462 eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1466 step_msg "writing configuration"
1469 putvar CFG_BUILD_DIR
1472 putvar CFG_CONFIGURE_ARGS
1476 putvar CFG_LIBDIR_RELATIVE
1477 putvar CFG_DISABLE_MANAGE_SUBMODULES
1478 putvar CFG_ANDROID_CROSS_PATH
1481 # Avoid spurious warnings from clang by feeding it original source on
1482 # ccache-miss rather than preprocessed input.
1483 if [ ! -z "$CFG_ENABLE_CCACHE" ] && [ ! -z "$CFG_USING_CLANG" ]
1486 putvar CFG_CCACHE_CPP2
1489 if [ ! -z "$CFG_ENABLE_CCACHE" ]
1491 CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1492 putvar CFG_CCACHE_BASEDIR
1496 if [ ! -z $BAD_PANDOC ]
1502 putvar CFG_LLVM_SRC_DIR
1506 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1507 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1508 putvar $CFG_LLVM_BUILD_DIR
1509 putvar $CFG_LLVM_INST_DIR
1512 # Munge any paths that appear in config.mk back to posix-y
1513 cp config.tmp config.tmp.bak
1514 sed -e 's@ \([a-zA-Z]\):[/\\]@ /\1/@g;' <config.tmp.bak >config.tmp
1515 rm -f config.tmp.bak
1518 copy_if_changed ${CFG_SRC_DIR}Makefile.in ./Makefile
1519 move_if_changed config.tmp config.mk
1523 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1524 step_msg "configured in release mode. for development consider --enable-debug"
1529 msg "run \`make help\`"