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 | head -1 \
110 | sed -e 's/[^0-9]*\([vV]\?[0-9.]\+[^ ]*\).*/\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" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
615 CFG_LIBDIR_RELATIVE=bin
617 CFG_LIBDIR_RELATIVE=lib
620 valopt libdir "${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_OSTYPE" = "pc-windows-msvc" ] ) \
632 && [ "$CFG_LIBDIR_RELATIVE" != "bin" ]; then
633 err "libdir on windows should be set to 'bin'"
643 step_msg "validating $CFG_SELF args"
646 # Validate the release channel, and configure options
647 case "$CFG_RELEASE_CHANNEL" in
649 msg "overriding settings for $CFG_RELEASE_CHANNEL"
650 CFG_ENABLE_LLVM_ASSERTIONS=1
655 err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
659 # Adjust perf and debug options for debug mode
660 if [ -n "$CFG_ENABLE_DEBUG" ]; then
661 msg "debug mode enabled, setting performance options"
662 if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
663 msg "optimization not explicitly enabled, disabling optimization"
664 CFG_DISABLE_OPTIMIZE=1
665 CFG_DISABLE_OPTIMIZE_CXX=1
667 CFG_ENABLE_DEBUG_ASSERTIONS=1
668 CFG_ENABLE_DEBUG_JEMALLOC=1
669 CFG_ENABLE_DEBUGINFO=1
670 CFG_ENABLE_LLVM_ASSERTIONS=1
673 # OK, now write the debugging options
674 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
675 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
676 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
677 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
678 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
679 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
680 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
682 # A magic value that allows the compiler to use unstable features
683 # during the bootstrap even when doing so would normally be an error
684 # because of feature staging or because the build turns on
685 # warnings-as-errors and unstable features default to warnings. The
686 # build has to match this key in an env var. Meant to be a mild
687 # deterrent from users just turning on unstable features on the stable
689 # Basing CFG_BOOTSTRAP_KEY on CFG_BOOTSTRAP_KEY lets it get picked up
690 # during a Makefile reconfig.
691 CFG_BOOTSTRAP_KEY="${CFG_BOOTSTRAP_KEY-`date +%H:%M:%S`}"
692 putvar CFG_BOOTSTRAP_KEY
694 step_msg "looking for build programs"
696 probe_need CFG_CURLORWGET curl wget
697 probe_need CFG_PYTHON python2.7 python2.6 python2 python
699 python_version=$($CFG_PYTHON -V 2>&1)
700 if [ $(echo $python_version | grep -c '^Python 2\.[4567]') -ne 1 ]; then
701 err "Found $python_version, but LLVM requires Python 2.4-2.7"
704 # If we have no git directory then we are probably a tarball distribution
705 # and shouldn't attempt to load submodules
706 if [ ! -e ${CFG_SRC_DIR}.git ]
709 msg "git: no git directory. disabling submodules"
710 CFG_DISABLE_MANAGE_SUBMODULES=1
712 probe_need CFG_GIT git
715 probe CFG_CLANG clang++
716 probe CFG_CCACHE ccache
719 probe CFG_VALGRIND valgrind
722 probe CFG_ANTLR4 antlr4
725 probe CFG_BISON bison
726 probe CFG_PANDOC pandoc
727 probe CFG_XELATEX xelatex
731 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
732 # installed. Since `javac` is only used if `antlr4` is available,
733 # probe for it only in this case.
734 if [ ! -z "$CFG_ANTLR4" ]
736 probe CFG_JAVAC javac
739 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
740 # only disabled if you opt out.
741 if [ -z "$CFG_VALGRIND" ]
743 # If the user has explicitly asked for valgrind tests, then fail
744 if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
746 err "No valgrind present, but valgrind tests explicitly requested"
748 CFG_DISABLE_VALGRIND_RPASS=1
749 putvar CFG_DISABLE_VALGRIND_RPASS
753 if [ ! -z "$CFG_GDB" ]
755 # Store GDB's version
756 CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
757 putvar CFG_GDB_VERSION
760 if [ ! -z "$CFG_LLDB" ]
762 # Store LLDB's version
763 CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
764 putvar CFG_LLDB_VERSION
766 # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
767 # LLDB via the -P commandline options.
768 if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
770 CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
772 # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
773 if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
775 CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
778 putvar CFG_LLDB_PYTHON_DIR
782 step_msg "looking for target specific programs"
786 if [ ! -z "$CFG_PANDOC" ]
788 # Extract "MAJOR MINOR" from Pandoc's version number
789 PV_MAJOR_MINOR=$(pandoc --version | grep '^pandoc' |
790 sed -E 's/pandoc(.exe)? ([0-9]+)\.([0-9]+).*/\2 \3/')
795 # these patterns are shell globs, *not* regexps
796 PV_MAJOR=${PV_MAJOR_MINOR% *}
797 PV_MINOR=${PV_MAJOR_MINOR#* }
799 if [ "$PV_MAJOR" -lt "$MIN_PV_MAJOR" ] || [ "$PV_MINOR" -lt "$MIN_PV_MINOR" ]
801 step_msg "pandoc $PV_MAJOR.$PV_MINOR is too old. Need at least $MIN_PV_MAJOR.$MIN_PV_MINOR. Disabling"
807 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
812 if [ ! -z "$CFG_ENABLE_LOCAL_RUST" ]
814 system_rustc=$(which rustc)
815 if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
817 : # everything already configured
818 elif [ -n "$system_rustc" ]
820 # we assume that rustc is in a /bin directory
821 CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
823 err "no local rust to use"
826 CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
830 step_msg "failure while running $CMD --version"
833 step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
834 putvar CFG_LOCAL_RUST_ROOT
837 # Force freebsd to build with clang; gcc doesn't like us there
838 if [ $CFG_OSTYPE = unknown-freebsd ]
840 step_msg "on FreeBSD, forcing use of clang"
844 # Force bitrig to build with clang; gcc doesn't like us there
845 if [ $CFG_OSTYPE = unknown-bitrig ]
847 step_msg "on Bitrig, forcing use of clang, disabling jemalloc"
849 CFG_DISABLE_JEMALLOC=1
852 if [ -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
854 err "either clang or gcc is required"
857 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
858 # system, so if we find that gcc is clang, we should just use clang directly.
859 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
861 CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
864 step_msg "on OS X >=10.9, forcing use of clang"
867 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
868 step_msg "older GCC found, using clang instead"
871 # on OS X, with xcode 5 and newer, certain developers may have
872 # cc, gcc and g++ point to a mixture of clang and gcc
873 # if so, this will create very strange build errors
874 # this last stanza is to detect some such problems and save the future rust
875 # contributor some time solving that issue.
876 # this detection could be generalized to other OSes aside from OS X
877 # but the issue seems most likely to happen on OS X
880 $1 --version 2> /dev/null | grep -q $2
882 # check that gcc, cc and g++ all point to the same compiler.
883 # note that for xcode 5, g++ points to clang, not clang++
884 if !((chk_cc gcc clang && chk_cc g++ clang) ||
885 (chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then
886 err "the gcc and g++ in your path point to different compilers.
887 Check which versions are in your path with gcc --version and g++ --version.
888 To resolve this problem, either fix your PATH or run configure with --enable-clang"
895 # Okay, at this point, we have made up our minds about whether we are
896 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
897 if [ ! -z "$CFG_ENABLE_CLANG" ]
899 putvar CFG_ENABLE_CLANG
902 # Same with jemalloc. save the setting here.
903 if [ ! -z "$CFG_DISABLE_JEMALLOC" ]
905 putvar CFG_DISABLE_JEMALLOC
908 if [ ! -z "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
910 step_msg "using custom LLVM at $CFG_LLVM_ROOT"
912 LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
913 LLVM_VERSION=$($LLVM_CONFIG --version)
915 case $LLVM_VERSION in
917 msg "found ok version of LLVM: $LLVM_VERSION"
920 err "bad LLVM version: $LLVM_VERSION, need >=3.5"
925 # Even when the user overrides the choice of CC, still try to detect
926 # clang to disable some clang-specific warnings. We here draw a
927 # distinction between:
929 # CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
930 # CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
932 # This distinction is important because there are some safeguards we
933 # would prefer to skip when merely CFG_USING_CLANG is set; but when
934 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
935 # running such safeguards.
939 msg "skipping compiler inference steps; using provided CC=$CC"
942 CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
945 step_msg "note, user-provided CC looks like clang; CC=$CC."
947 putvar CFG_USING_CLANG
950 if [ ! -z "$CFG_ENABLE_CLANG" ]
952 if [ -z "$CFG_CLANG" ]
954 err "clang requested but not found"
958 putvar CFG_USING_CLANG
964 if [ ! -z "$CFG_ENABLE_CLANG" ]
966 if [ -z "$CC" ] || [[ $CC == *clang ]]
968 CFG_CLANG_VERSION=$($CFG_CC \
971 | sed 's/.*\(version .*\)/\1/; s/.*based on \(LLVM .*\))/\1/' \
974 case $CFG_CLANG_VERSION in
975 (3.2* | 3.3* | 3.4* | 3.5* | 3.6*)
976 step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
984 err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn"
988 msg "skipping CFG_ENABLE_CLANG version check; provided CC=$CC"
992 if [ ! -z "$CFG_ENABLE_CCACHE" ]
996 if [ -z "$CFG_CCACHE" ]
998 err "ccache requested but not found"
1001 CFG_CC="ccache $CFG_CC"
1005 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1007 err "either clang or gcc is required"
1010 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1011 # point in the script; after this point, script logic should inspect
1012 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1014 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS}
1021 # a little post-processing of various config values
1022 CFG_PREFIX=${CFG_PREFIX%/}
1023 CFG_MANDIR=${CFG_MANDIR%/}
1024 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1025 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1026 CFG_SUPPORTED_TARGET=""
1027 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1028 CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1031 # copy host-triples to target-triples so that hosts are a subset of targets
1033 for i in $CFG_HOST $CFG_TARGET;
1035 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1039 # check target-specific tool-chains
1040 for i in $CFG_TARGET
1043 for j in $CFG_SUPPORTED_TARGET
1051 if [ $L_CHECK = false ]
1053 err "unsupported target triples \"$i\" found"
1057 arm-linux-androideabi)
1059 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc ]
1061 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc not found"
1063 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ ]
1065 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ not found"
1067 if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar ]
1069 err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar not found"
1074 if [ $CFG_OSTYPE != apple-darwin ]
1076 err "The iOS target is only supported on Mac OS X"
1082 if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
1084 err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
1089 # Currently the build system is not configured to build jemalloc
1090 # with MSVC, so we omit this optional dependency.
1091 step_msg "targeting MSVC, disabling jemalloc"
1092 CFG_DISABLE_JEMALLOC=1
1093 putvar CFG_DISABLE_JEMALLOC
1095 # There are some MSYS python builds which will auto-translate
1096 # windows-style paths to MSYS-style paths in Python itself.
1097 # Unfortunately this breaks LLVM's build system as somewhere along
1098 # the line LLVM prints a path into a file from Python and then CMake
1099 # later tries to interpret that path. If Python prints a MSYS path
1100 # and CMake tries to use it as a Windows path, you're gonna have a
1103 # Consequently here we try to detect when that happens and print an
1105 if $CFG_PYTHON -c 'import sys; print sys.argv[1]' `pwd` | grep '^/'
1107 err "python is silently translating windows paths to MSYS paths \
1108 and the build will fail if this python is used.\n\n \
1109 Either an official python install must be used or an \
1110 alternative python package in MinGW must be used."
1113 # MSVC requires cmake because that's how we're going to build LLVM
1114 probe_need CFG_CMAKE cmake
1116 # Use the REG program to figure out where VS is installed
1117 # We need to figure out where cl.exe and link.exe are, so we do some
1118 # munging and some probing here. We also look for the default
1119 # INCLUDE and LIB variables for MSVC so we can set those in the
1120 # build system as well.
1121 install=$(reg QUERY \
1122 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0' \
1124 need_ok "couldn't find visual studio install root"
1125 CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
1126 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1127 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1128 CFG_MSVC_CL="${CFG_MSVC_ROOT}/VC/bin/amd64/cl.exe"
1129 CFG_MSVC_LIB="${CFG_MSVC_ROOT}/VC/bin/amd64/lib.exe"
1130 CFG_MSVC_LINK="${CFG_MSVC_ROOT}/VC/bin/amd64/link.exe"
1132 vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
1133 CFG_MSVC_INCLUDE_PATH=$(cmd /c "\"$vcvarsall\" amd64 && cmd /c echo %INCLUDE%")
1134 need_ok "failed to learn about MSVC's INCLUDE"
1135 CFG_MSVC_LIB_PATH=$(cmd /c "\"$vcvarsall\" amd64 && cmd /c echo %LIB%")
1136 need_ok "failed to learn about MSVC's LIB"
1138 putvar CFG_MSVC_ROOT
1141 putvar CFG_MSVC_LINK
1142 putvar CFG_MSVC_INCLUDE_PATH
1143 putvar CFG_MSVC_LIB_PATH
1151 if [ ! -z "$CFG_PERF" ]
1153 HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1154 if [ -z "$HAVE_PERF_LOGFD" ];
1156 CFG_PERF_WITH_LOGFD=1
1157 putvar CFG_PERF_WITH_LOGFD
1161 step_msg "making directories"
1164 doc doc/std doc/extra \
1177 make_dir $t/rustllvm
1180 for t in $CFG_TARGET
1185 make_dir $t/rt/stage$s
1186 make_dir $t/rt/jemalloc
1187 make_dir $t/rt/compiler-rt
1190 arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1192 make_dir $t/rt/stage$s/$i
1199 for t in $CFG_TARGET
1201 # host lib dir stage0
1202 make_dir $h/stage0/lib
1204 # target bin dir stage0
1205 make_dir $h/stage0/lib/rustlib/$t/bin
1207 # target lib dir stage0
1208 make_dir $h/stage0/lib/rustlib/$t/lib
1213 make_dir $h/stage$i/bin
1216 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1219 make_dir $h/stage$i/test
1222 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1225 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1229 make_dir $h/test/run-pass
1230 make_dir $h/test/run-pass-valgrind
1231 make_dir $h/test/run-pass-fulldeps
1232 make_dir $h/test/run-fail
1233 make_dir $h/test/run-fail-fulldeps
1234 make_dir $h/test/compile-fail
1235 make_dir $h/test/parse-fail
1236 make_dir $h/test/compile-fail-fulldeps
1237 make_dir $h/test/bench
1238 make_dir $h/test/perf
1239 make_dir $h/test/pretty
1240 make_dir $h/test/debuginfo-gdb
1241 make_dir $h/test/debuginfo-lldb
1242 make_dir $h/test/codegen
1243 make_dir $h/test/rustdoc
1246 # Configure submodules
1247 step_msg "configuring submodules"
1249 # Have to be in the top of src directory for this
1250 if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ]
1254 msg "git: submodule sync"
1255 "${CFG_GIT}" submodule sync
1257 msg "git: submodule init"
1258 "${CFG_GIT}" submodule init
1260 # Disable submodules that we're not using
1261 if [ ! -z "${CFG_LLVM_ROOT}" ]; then
1262 msg "git: submodule deinit src/llvm"
1263 "${CFG_GIT}" submodule deinit src/llvm
1265 if [ ! -z "${CFG_JEMALLOC_ROOT}" ]; then
1266 msg "git: submodule deinit src/jemalloc"
1267 "${CFG_GIT}" submodule deinit src/jemalloc
1270 msg "git: submodule update"
1271 "${CFG_GIT}" submodule update
1272 need_ok "git failed"
1274 msg "git: submodule foreach sync"
1275 "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1276 need_ok "git failed"
1278 msg "git: submodule foreach update"
1279 "${CFG_GIT}" submodule update --recursive
1280 need_ok "git failed"
1282 # NB: this is just for the sake of getting the submodule SHA1 values
1283 # and status written into the build log.
1284 msg "git: submodule status"
1285 "${CFG_GIT}" submodule status --recursive
1287 msg "git: submodule clobber"
1288 "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1289 need_ok "git failed"
1290 "${CFG_GIT}" submodule foreach --recursive git checkout .
1291 need_ok "git failed"
1296 # Configure llvm, only if necessary
1297 step_msg "looking at LLVM"
1298 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1303 if [ -z $CFG_LLVM_ROOT ]
1305 LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1306 if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1308 LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized"
1309 # Just use LLVM straight from its build directory to
1310 # avoid 'make install' time
1311 LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1313 LLVM_DBG_OPTS="--enable-optimized"
1314 LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1316 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1318 LLVM_ASSERTION_OPTS="--disable-assertions"
1320 LLVM_ASSERTION_OPTS="--enable-assertions"
1321 LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts
1324 msg "not reconfiguring LLVM, external LLVM root"
1325 # The user is using their own LLVM
1327 LLVM_INST_DIR=$CFG_LLVM_ROOT
1332 if [ ${do_reconfigure} -ne 0 ]
1334 # because git is hilarious, it might have put the module index
1335 # in a couple places.
1336 index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1337 index2="${CFG_SRC_DIR}src/llvm/.git/index"
1338 for index in ${index1} ${index2}
1340 config_status="${LLVM_BUILD_DIR}/config.status"
1341 if test -e ${index} -a \
1342 -e ${config_status} -a \
1343 ${config_status} -nt ${index}
1345 msg "not reconfiguring LLVM, config.status is fresh"
1358 if [ ${do_reconfigure} -ne 0 ] && [ ${use_cmake} -ne 0 ]
1360 msg "configuring LLVM for $t with cmake"
1362 CMAKE_ARGS="-DLLVM_INCLUDE_TESTS=OFF"
1363 if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then
1364 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Debug"
1366 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release"
1368 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1370 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=OFF"
1372 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=ON"
1375 msg "configuring LLVM with:"
1377 (cd $LLVM_BUILD_DIR && "$CFG_CMAKE" $CFG_LLVM_SRC_DIR \
1378 -G "Visual Studio 12 2013 Win64" \
1380 need_ok "LLVM cmake configure failed"
1383 if [ ${do_reconfigure} -ne 0 ] && [ ${use_cmake} -eq 0 ]
1385 # LLVM's configure doesn't recognize the new Windows triples yet
1386 gnu_t=$(to_gnu_triple $t)
1388 msg "configuring LLVM for $gnu_t"
1390 LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
1391 LLVM_BUILD="--build=$gnu_t"
1392 LLVM_HOST="--host=$gnu_t"
1393 LLVM_TARGET="--target=$gnu_t"
1395 # Disable unused LLVM features
1396 LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none"
1397 # Disable term-info, linkage of which comes in multiple forms,
1398 # making our snapshots incompatible (#9334)
1399 LLVM_OPTS="$LLVM_OPTS --disable-terminfo"
1400 # Try to have LLVM pull in as few dependencies as possible (#9397)
1401 LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi"
1403 # Use win32 native thread/lock apis instead of pthread wrapper.
1404 # (llvm's configure tries to find pthread first, so we have to disable it explicitly.)
1405 # Also note that pthreads works badly on mingw-w64 systems: #8996
1406 case "$CFG_BUILD" in
1408 LLVM_OPTS="$LLVM_OPTS --disable-pthreads"
1414 LLVM_CXX_32="ccache clang++ -Qunused-arguments"
1415 LLVM_CC_32="ccache clang -Qunused-arguments"
1417 LLVM_CXX_64="ccache clang++ -Qunused-arguments"
1418 LLVM_CC_64="ccache clang -Qunused-arguments"
1421 LLVM_CXX_32="clang++ -Qunused-arguments"
1422 LLVM_CC_32="clang -Qunused-arguments"
1424 LLVM_CXX_64="clang++ -Qunused-arguments"
1425 LLVM_CC_64="clang -Qunused-arguments"
1428 LLVM_CXX_32="ccache g++"
1429 LLVM_CC_32="ccache gcc"
1431 LLVM_CXX_64="ccache g++"
1432 LLVM_CC_64="ccache gcc"
1443 msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1452 case "$CFG_CPUTYPE" in
1454 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1455 LLVM_CC_32="$LLVM_CC_32 -m32"
1457 LLVM_CFLAGS_32="-m32"
1458 LLVM_CXXFLAGS_32="-m32"
1459 LLVM_LDFLAGS_32="-m32"
1465 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1466 LLVM_CC_32="$LLVM_CC_32 -m32"
1480 if echo $t | grep -q x86_64
1482 LLVM_CXX=$LLVM_CXX_64
1484 LLVM_CFLAGS=$LLVM_CFLAGS_64
1485 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1486 LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1488 LLVM_CXX=$LLVM_CXX_32
1490 LLVM_CFLAGS=$LLVM_CFLAGS_32
1491 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1492 LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1498 CXXFLAGS=$LLVM_CXXFLAGS
1499 LDFLAGS=$LLVM_LDFLAGS
1501 if [ -z "$CFG_DISABLE_LIBCPP" ] && [ -n "$CFG_USING_CLANG" ]; then
1502 LLVM_OPTS="$LLVM_OPTS --enable-libcpp"
1505 LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \
1506 $LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON"
1508 msg "configuring LLVM with:"
1518 case $CFG_SRC_DIR in
1519 /* | [a-z]:* | [A-Z]:*)
1520 ${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS
1523 ${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \
1527 need_ok "LLVM configure failed"
1532 # Construct variables for LLVM build and install directories for
1533 # each target. These will be named
1534 # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1535 # target_triple will be converted to underscore, because bash
1536 # variables can't contain hyphens. The makefile will then have to
1538 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1539 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1540 eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1541 eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1545 step_msg "writing configuration"
1548 putvar CFG_BUILD_DIR
1551 putvar CFG_CONFIGURE_ARGS
1555 putvar CFG_LIBDIR_RELATIVE
1556 putvar CFG_DISABLE_MANAGE_SUBMODULES
1557 putvar CFG_ANDROID_CROSS_PATH
1560 # Avoid spurious warnings from clang by feeding it original source on
1561 # ccache-miss rather than preprocessed input.
1562 if [ ! -z "$CFG_ENABLE_CCACHE" ] && [ ! -z "$CFG_USING_CLANG" ]
1565 putvar CFG_CCACHE_CPP2
1568 if [ ! -z "$CFG_ENABLE_CCACHE" ]
1570 CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1571 putvar CFG_CCACHE_BASEDIR
1575 if [ ! -z $BAD_PANDOC ]
1581 putvar CFG_LLVM_SRC_DIR
1585 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1586 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1587 putvar $CFG_LLVM_BUILD_DIR
1588 putvar $CFG_LLVM_INST_DIR
1592 copy_if_changed ${CFG_SRC_DIR}Makefile.in ./Makefile
1593 move_if_changed config.tmp config.mk
1597 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1598 step_msg "configured in release mode. for development consider --enable-debug"
1603 msg "run \`make help\`"