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 "program '$1' is missing, please install it"
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.
326 enable_if_not_disabled() {
328 local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
329 local ENAB_V="CFG_ENABLE_$UOP"
330 local EXPLICITLY_DISABLED="CFG_DISABLE_${UOP}_PROVIDED"
331 eval VV=\$$EXPLICITLY_DISABLED
332 if [ -z "$VV" ]; then
339 i686-w64-mingw32) echo i686-pc-windows-gnu ;;
340 x86_64-w64-mingw32) echo x86_64-pc-windows-gnu ;;
347 i686-pc-windows-gnu) echo i686-w64-mingw32 ;;
348 x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;;
353 # Prints the absolute path of a directory to stdout
356 # Unset CDPATH because it causes havok: it makes the destination unpredictable
357 # and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null
359 (unset CDPATH && cd "$_path" > /dev/null && pwd)
362 msg "looking for configure programs"
379 msg "inspecting environment"
381 CFG_OSTYPE=$(uname -s)
382 CFG_CPUTYPE=$(uname -m)
384 if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ]
386 # Darwin's `uname -s` lies and always returns i386. We have to use sysctl
388 if sysctl hw.optional.x86_64 | grep -q ': 1'
394 # The goal here is to come up with the same triple as LLVM would,
395 # at least for the subset of platforms we're willing to target.
400 CFG_OSTYPE=unknown-linux-gnu
404 CFG_OSTYPE=unknown-freebsd
408 CFG_OSTYPE=unknown-dragonfly
412 CFG_OSTYPE=unknown-bitrig
416 CFG_OSTYPE=unknown-openbsd
420 CFG_OSTYPE=unknown-netbsd
424 CFG_OSTYPE=apple-darwin
428 # msys' `uname` does not print gcc configuration, but prints msys
429 # configuration. so we cannot believe `uname -m`:
430 # msys1 is always i686 and msys2 is always x86_64.
431 # instead, msys defines $MSYSTEM which is MINGW32 on i686 and
434 CFG_OSTYPE=pc-windows-gnu
435 if [ "$MSYSTEM" = MINGW64 ]
442 CFG_OSTYPE=pc-windows-gnu
445 # Thad's Cygwin identifiers below
449 CFG_OSTYPE=pc-windows-gnu
455 CFG_OSTYPE=pc-windows-gnu
461 CFG_OSTYPE=pc-windows-gnu
467 CFG_OSTYPE=pc-windows-gnu
471 # Win 8 # uname -s on 64-bit cygwin does not contain WOW64, so simply use uname -m to detect arch (works in my install)
473 CFG_OSTYPE=pc-windows-gnu
475 # We do not detect other OS such as XP/2003 using 64 bit using uname.
476 # 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.
478 err "unknown OS type: $CFG_OSTYPE"
485 i386 | i486 | i686 | i786 | x86)
495 CFG_OSTYPE="${CFG_OSTYPE}eabihf"
502 # At some point, when ppc64[le] support happens, this will need to do
503 # something clever. For now it's safe to assume that we're only ever
504 # interested in building 32 bit.
505 powerpc | ppc | ppc64)
509 x86_64 | x86-64 | x64 | amd64)
514 err "unknown CPU type: $CFG_CPUTYPE"
517 # Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation
518 if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ]
520 # $SHELL does not exist in standard 'sh', so probably only exists
521 # if configure is running in an interactive bash shell. /usr/bin/env
522 # exists *everywhere*.
523 BIN_TO_PROBE="$SHELL"
524 if [ -z "$BIN_TO_PROBE" -a -e "/usr/bin/env" ]; then
525 BIN_TO_PROBE="/usr/bin/env"
527 if [ -n "$BIN_TO_PROBE" ]; then
528 file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
536 DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
538 CFG_SRC_DIR="$(abs_path $(dirname $0))/"
539 CFG_SRC_DIR_RELATIVE="$(dirname $0)/"
540 CFG_BUILD_DIR="$(pwd)/"
542 CFG_CONFIGURE_ARGS="$@"
546 if [ "$1" = "--help" ]
551 echo "Usage: $CFG_SELF [options]"
556 msg "recreating config.tmp"
559 step_msg "processing $CFG_SELF args"
565 opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
566 opt valgrind 0 "run tests with valgrind (memcheck by default)"
567 opt helgrind 0 "run tests with helgrind instead of memcheck"
568 opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
569 opt docs 1 "build standard library documentation"
570 opt compiler-docs 0 "build compiler documentation"
571 opt optimize-tests 1 "build tests with optimizations"
572 opt debuginfo-tests 0 "build tests with debugger metadata"
573 opt libcpp 1 "build with llvm with libc++ instead of libstdc++ when using clang"
574 opt llvm-assertions 0 "build LLVM with assertions"
575 opt debug-assertions 0 "build with debugging assertions"
576 opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
577 opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
578 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
579 opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
580 opt rpath 0 "build rpaths into rustc itself"
581 # This is used by the automation to produce single-target nightlies
582 opt dist-host-only 0 "only install bins for the host architecture"
583 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
584 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
586 # Optimization and debugging options. These may be overridden by the release channel, etc.
587 opt_nosave optimize 1 "build optimized rust code"
588 opt_nosave optimize-cxx 1 "build optimized C++ code"
589 opt_nosave optimize-llvm 1 "build optimized LLVM"
590 opt_nosave llvm-assertions 0 "build LLVM with assertions"
591 opt_nosave debug-assertions 0 "build with debugging assertions"
592 opt_nosave debuginfo 0 "build with debugger metadata"
593 opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
595 valopt localstatedir "/var/lib" "local state directory"
596 valopt sysconfdir "/etc" "install system configuration files"
598 valopt datadir "${CFG_PREFIX}/share" "install data"
599 valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
600 valopt llvm-root "" "set LLVM root"
601 valopt python "" "set path to python"
602 valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
603 valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
604 valopt android-cross-path "/opt/ndk_standalone" "Android NDK standalone path (deprecated)"
605 valopt arm-linux-androideabi-ndk "" "arm-linux-androideabi NDK standalone path"
606 valopt aarch64-linux-android-ndk "" "aarch64-linux-android NDK standalone path"
607 valopt release-channel "dev" "the name of the release channel to build"
608 valopt musl-root "/usr/local" "MUSL root installation directory"
610 # Many of these are saved below during the "writing configuration" step
611 # (others are conditionally saved).
612 opt_nosave manage-submodules 1 "let the build manage the git submodules"
613 opt_nosave clang 0 "prefer clang to gcc for building the runtime"
614 opt_nosave jemalloc 1 "build liballoc with jemalloc"
615 opt elf-tls 1 "elf thread local storage on platforms where supported"
617 valopt_nosave prefix "/usr/local" "set installation prefix"
618 valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
619 valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
620 valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
621 valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
623 # Temporarily support old triples until buildbots get updated
624 CFG_BUILD=$(to_llvm_triple $CFG_BUILD)
625 putvar CFG_BUILD # Yes, this creates a duplicate entry, but the last one wins.
626 CFG_HOST=$(to_llvm_triple $CFG_HOST)
627 CFG_TARGET=$(to_llvm_triple $CFG_TARGET)
629 # On windows we just store the libraries in the bin directory because
630 # there's no rpath. This is where the build system itself puts libraries;
631 # --libdir is used to configure the installation directory.
632 # FIXME: This needs to parameterized over target triples. Do it in platform.mk
633 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
635 CFG_LIBDIR_RELATIVE=bin
637 CFG_LIBDIR_RELATIVE=lib
640 valopt libdir "${CFG_PREFIX}/${CFG_LIBDIR_RELATIVE}" "install libraries (do not set it on windows platform)"
642 case "$CFG_LIBDIR" in
643 "$CFG_PREFIX"/*) CAT_INC=2;;
644 "$CFG_PREFIX"*) CAT_INC=1;;
646 err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
649 CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
651 if ( [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ] ) \
652 && [ "$CFG_LIBDIR_RELATIVE" != "bin" ]; then
653 err "libdir on windows should be set to 'bin'"
663 step_msg "validating $CFG_SELF args"
666 # Validate the release channel, and configure options
667 case "$CFG_RELEASE_CHANNEL" in
669 msg "overriding settings for $CFG_RELEASE_CHANNEL"
670 CFG_ENABLE_LLVM_ASSERTIONS=1
675 err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
679 # Adjust perf and debug options for debug mode
680 if [ -n "$CFG_ENABLE_DEBUG" ]; then
681 msg "debug mode enabled, setting performance options"
682 if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
683 msg "optimization not explicitly enabled, disabling optimization"
684 CFG_DISABLE_OPTIMIZE=1
685 CFG_DISABLE_OPTIMIZE_CXX=1
688 # Set following variables to 1 unless setting already provided
689 enable_if_not_disabled debug-assertions
690 enable_if_not_disabled debug-jemalloc
691 enable_if_not_disabled debuginfo
692 enable_if_not_disabled llvm-assertions
695 # OK, now write the debugging options
696 if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
697 if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
698 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
699 if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
700 if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
701 if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
702 if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
704 # A magic value that allows the compiler to use unstable features
705 # during the bootstrap even when doing so would normally be an error
706 # because of feature staging or because the build turns on
707 # warnings-as-errors and unstable features default to warnings. The
708 # build has to match this key in an env var. Meant to be a mild
709 # deterrent from users just turning on unstable features on the stable
711 # Basing CFG_BOOTSTRAP_KEY on CFG_BOOTSTRAP_KEY lets it get picked up
712 # during a Makefile reconfig.
713 CFG_BOOTSTRAP_KEY="${CFG_BOOTSTRAP_KEY-`date +%H:%M:%S`}"
714 putvar CFG_BOOTSTRAP_KEY
716 step_msg "looking for build programs"
718 probe_need CFG_CURLORWGET curl wget
719 if [ -z "$CFG_PYTHON_PROVIDED" ]; then
720 probe_need CFG_PYTHON python2.7 python2.6 python2 python
723 python_version=$($CFG_PYTHON -V 2>&1)
724 if [ $(echo $python_version | grep -c '^Python 2\.[4567]') -ne 1 ]; then
725 err "Found $python_version, but LLVM requires Python 2.4-2.7"
728 # If we have no git directory then we are probably a tarball distribution
729 # and shouldn't attempt to load submodules
730 if [ ! -e ${CFG_SRC_DIR}.git ]
733 msg "git: no git directory. disabling submodules"
734 CFG_DISABLE_MANAGE_SUBMODULES=1
736 probe_need CFG_GIT git
739 # Use `md5sum` on GNU platforms, or `md5 -q` on BSD
741 probe CFG_MD5SUM md5sum
744 CFG_HASH_COMMAND="$CFG_MD5 -q | cut -c 1-8"
745 elif [ -n "$CFG_MD5SUM" ]
747 CFG_HASH_COMMAND="$CFG_MD5SUM | cut -c 1-8"
749 err 'could not find one of: md5 md5sum'
751 putvar CFG_HASH_COMMAND
753 probe CFG_CLANG clang++
754 probe CFG_CCACHE ccache
757 probe CFG_VALGRIND valgrind
760 probe CFG_ANTLR4 antlr4
763 probe CFG_BISON bison
764 probe CFG_PANDOC pandoc
765 probe CFG_XELATEX xelatex
769 # On MacOS X, invoking `javac` pops up a dialog if the JDK is not
770 # installed. Since `javac` is only used if `antlr4` is available,
771 # probe for it only in this case.
772 if [ -n "$CFG_ANTLR4" ]
774 probe CFG_JAVAC javac
777 # the valgrind rpass tests will fail if you don't have a valgrind, but they're
778 # only disabled if you opt out.
779 if [ -z "$CFG_VALGRIND" ]
781 # If the user has explicitly asked for valgrind tests, then fail
782 if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
784 err "No valgrind present, but valgrind tests explicitly requested"
786 CFG_DISABLE_VALGRIND_RPASS=1
787 putvar CFG_DISABLE_VALGRIND_RPASS
793 # Store GDB's version
794 CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
795 putvar CFG_GDB_VERSION
798 if [ -n "$CFG_LLDB" ]
800 # Store LLDB's version
801 CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
802 putvar CFG_LLDB_VERSION
804 # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
805 # LLDB via the -P commandline options.
806 if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
808 CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
810 # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
811 if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
813 CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
816 putvar CFG_LLDB_PYTHON_DIR
820 step_msg "looking for target specific programs"
824 if [ -n "$CFG_PANDOC" ]
826 # Extract "MAJOR MINOR" from Pandoc's version number
827 PV_MAJOR_MINOR=$(pandoc --version | grep '^pandoc' |
828 sed -E 's/pandoc(.exe)? ([0-9]+)\.([0-9]+).*/\2 \3/')
833 # these patterns are shell globs, *not* regexps
834 PV_MAJOR=${PV_MAJOR_MINOR% *}
835 PV_MINOR=${PV_MAJOR_MINOR#* }
837 if [ "$PV_MAJOR" -lt "$MIN_PV_MAJOR" ] || [ "$PV_MINOR" -lt "$MIN_PV_MINOR" ]
839 step_msg "pandoc $PV_MAJOR.$PV_MINOR is too old. Need at least $MIN_PV_MAJOR.$MIN_PV_MINOR. Disabling"
845 if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
850 if [ -n "$CFG_ENABLE_LOCAL_RUST" ]
852 system_rustc=$(which rustc)
853 if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
855 : # everything already configured
856 elif [ -n "$system_rustc" ]
858 # we assume that rustc is in a /bin directory
859 CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
861 err "no local rust to use"
864 CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
868 step_msg "failure while running $CMD --version"
871 step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
872 putvar CFG_LOCAL_RUST_ROOT
875 # Force bitrig to build with clang; gcc doesn't like us there
876 if [ $CFG_OSTYPE = unknown-bitrig ]
878 step_msg "on Bitrig, forcing use of clang, disabling jemalloc"
880 CFG_DISABLE_JEMALLOC=1
883 # OS X 10.9, gcc is actually clang. This can cause some confusion in the build
884 # system, so if we find that gcc is clang, we should just use clang directly.
885 if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
887 CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
890 step_msg "on OS X >=10.9, forcing use of clang"
893 if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
894 step_msg "older GCC found, using clang instead"
897 # on OS X, with xcode 5 and newer, certain developers may have
898 # cc, gcc and g++ point to a mixture of clang and gcc
899 # if so, this will create very strange build errors
900 # this last stanza is to detect some such problems and save the future rust
901 # contributor some time solving that issue.
902 # this detection could be generalized to other OSes aside from OS X
903 # but the issue seems most likely to happen on OS X
906 $1 --version 2> /dev/null | grep -q $2
908 # check that gcc, cc and g++ all point to the same compiler.
909 # note that for xcode 5, g++ points to clang, not clang++
910 if !((chk_cc gcc clang && chk_cc g++ clang) ||
911 (chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then
912 err "the gcc and g++ in your path point to different compilers.
913 Check which versions are in your path with gcc --version and g++ --version.
914 To resolve this problem, either fix your PATH or run configure with --enable-clang"
921 # If the clang isn't already enabled, check for GCC, and if it is missing, turn
922 # on clang as a backup.
923 if [ -z "$CFG_ENABLE_CLANG" ]
925 CFG_GCC_VERSION=$("$CFG_GCC" --version 2>&1)
928 step_msg "GCC not installed, will try using Clang"
933 # Okay, at this point, we have made up our minds about whether we are
934 # going to force CFG_ENABLE_CLANG or not; save the setting if so.
935 if [ -n "$CFG_ENABLE_CLANG" ]
937 putvar CFG_ENABLE_CLANG
940 # Same with jemalloc. save the setting here.
941 if [ -n "$CFG_DISABLE_JEMALLOC" ]
943 putvar CFG_DISABLE_JEMALLOC
946 if [ -n "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
948 step_msg "using custom LLVM at $CFG_LLVM_ROOT"
950 LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
951 LLVM_VERSION=$($LLVM_CONFIG --version)
953 case $LLVM_VERSION in
955 msg "found ok version of LLVM: $LLVM_VERSION"
958 err "bad LLVM version: $LLVM_VERSION, need >=3.5"
963 # Even when the user overrides the choice of CC, still try to detect
964 # clang to disable some clang-specific warnings. We here draw a
965 # distinction between:
967 # CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
968 # CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
970 # This distinction is important because there are some safeguards we
971 # would prefer to skip when merely CFG_USING_CLANG is set; but when
972 # CFG_ENABLE_CLANG is set, that indicates that we are opting into
973 # running such safeguards.
977 msg "skipping compiler inference steps; using provided CC=$CC"
980 CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
983 step_msg "note, user-provided CC looks like clang; CC=$CC."
985 putvar CFG_USING_CLANG
988 if [ -n "$CFG_ENABLE_CLANG" ]
990 if [ -z "$CFG_CLANG" ]
992 err "clang requested but not found"
996 putvar CFG_USING_CLANG
1002 if [ -n "$CFG_ENABLE_CLANG" ]
1006 CFG_CLANG_REPORTED_VERSION=$($CFG_CC --version | grep version)
1008 if echo $CFG_CLANG_REPORTED_VERSION | grep -q "(based on LLVM "; then
1009 CFG_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*(based on LLVM \(.*\))/\1/')
1010 elif echo $CFG_CLANG_REPORTED_VERSION | grep -q "Apple LLVM"; then
1011 CFG_OSX_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*version \(.*\) .*/\1/')
1013 CFG_CLANG_VERSION=$(echo $CFG_CLANG_REPORTED_VERSION | sed 's/.*version \(.*\) .*/\1/')
1016 if [ -n "$CFG_OSX_CLANG_VERSION" ]
1018 case $CFG_OSX_CLANG_VERSION in
1020 step_msg "found ok version of APPLE CLANG: $CFG_OSX_CLANG_VERSION"
1023 err "bad APPLE CLANG version: $CFG_OSX_CLANG_VERSION, need >=7.0"
1027 case $CFG_CLANG_VERSION in
1028 (3.2* | 3.3* | 3.4* | 3.5* | 3.6* | 3.7*)
1029 step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
1032 err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn"
1045 if [ -n "$CFG_ENABLE_CCACHE" ]
1047 if [ -z "$CFG_CCACHE" ]
1049 err "ccache requested but not found"
1052 CFG_CC="ccache $CFG_CC"
1055 if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
1057 err "either clang or gcc is required"
1060 # All safeguards based on $CFG_ENABLE_CLANG should occur before this
1061 # point in the script; after this point, script logic should inspect
1062 # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
1064 # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS}
1071 # a little post-processing of various config values
1072 CFG_PREFIX=${CFG_PREFIX%/}
1073 CFG_MANDIR=${CFG_MANDIR%/}
1074 CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
1075 CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
1076 CFG_SUPPORTED_TARGET=""
1077 for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
1078 CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
1081 # copy build-triples to host-triples so that builds are a subset of hosts
1083 for i in $CFG_BUILD $CFG_HOST;
1085 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1089 # copy host-triples to target-triples so that hosts are a subset of targets
1091 for i in $CFG_HOST $CFG_TARGET;
1093 echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
1097 # check target-specific tool-chains
1098 for i in $CFG_TARGET
1101 for j in $CFG_SUPPORTED_TARGET
1109 if [ $L_CHECK = false ]
1111 err "unsupported target triples \"$i\" found"
1116 upper_snake_target=$(echo "$i" | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
1117 eval ndk=\$"CFG_${upper_snake_target}_NDK"
1120 ndk=$CFG_ANDROID_CROSS_PATH
1121 eval "CFG_${upper_snake_target}_NDK"=$CFG_ANDROID_CROSS_PATH
1122 warn "generic/default Android NDK option is deprecated (use --$i-ndk option instead)"
1125 # Perform a basic sanity check of the NDK
1126 for android_ndk_tool in "$ndk/bin/$i-gcc" "$ndk/bin/$i-g++" "$ndk/bin/$i-ar"
1128 if [ ! -f $android_ndk_tool ]
1130 err "NDK tool $android_ndk_tool not found (bad or missing --$i-ndk option?)"
1136 if [ $CFG_OSTYPE != apple-darwin ]
1138 err "The iOS target is only supported on Mac OS X"
1144 if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
1146 err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
1151 # Currently the build system is not configured to build jemalloc
1152 # with MSVC, so we omit this optional dependency.
1153 step_msg "targeting MSVC, disabling jemalloc"
1154 CFG_DISABLE_JEMALLOC=1
1155 putvar CFG_DISABLE_JEMALLOC
1157 # There are some MSYS python builds which will auto-translate
1158 # windows-style paths to MSYS-style paths in Python itself.
1159 # Unfortunately this breaks LLVM's build system as somewhere along
1160 # the line LLVM prints a path into a file from Python and then CMake
1161 # later tries to interpret that path. If Python prints a MSYS path
1162 # and CMake tries to use it as a Windows path, you're gonna have a
1165 # Consequently here we try to detect when that happens and print an
1167 if $CFG_PYTHON -c 'import sys; print sys.argv[1]' `pwd` | grep '^/'
1169 err "python is silently translating windows paths to MSYS paths \
1170 and the build will fail if this python is used.\n\n \
1171 Either an official python install must be used or an \
1172 alternative python package in MinGW must be used."
1175 # MSVC requires cmake because that's how we're going to build LLVM
1176 probe_need CFG_CMAKE cmake
1178 # Use the REG program to figure out where VS is installed
1179 # We need to figure out where cl.exe and link.exe are, so we do some
1180 # munging and some probing here. We also look for the default
1181 # INCLUDE and LIB variables for MSVC so we can set those in the
1182 # build system as well.
1183 install=$(reg QUERY \
1184 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0' \
1186 if [ -z "$install" ]; then
1187 install=$(reg QUERY \
1188 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0' \
1191 need_ok "couldn't find visual studio install root"
1192 CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
1193 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1194 CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
1195 putvar CFG_MSVC_ROOT
1207 err "can only target x86 targets for MSVC"
1210 bindir="${CFG_MSVC_ROOT}/VC/bin"
1211 if [ -n "$msvc_part" ]; then
1212 bindir="$bindir/$msvc_part"
1214 eval CFG_MSVC_BINDIR_$bits="\"$bindir\""
1215 eval CFG_MSVC_CL_$bits="\"$bindir/cl.exe\""
1216 eval CFG_MSVC_LIB_$bits="\"$bindir/lib.exe\""
1217 eval CFG_MSVC_LINK_$bits="\"$bindir/link.exe\""
1219 vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
1220 include_path=$(cmd /c "\"$vcvarsall\" $msvc_part && cmd /c echo %INCLUDE%")
1221 need_ok "failed to learn about MSVC's INCLUDE"
1222 lib_path=$(cmd /c "\"$vcvarsall\" $msvc_part && cmd /c echo %LIB%")
1223 need_ok "failed to learn about MSVC's LIB"
1225 eval CFG_MSVC_INCLUDE_PATH_${bits}="\"$include_path\""
1226 eval CFG_MSVC_LIB_PATH_${bits}="\"$lib_path\""
1228 putvar CFG_MSVC_BINDIR_${bits}
1229 putvar CFG_MSVC_CL_${bits}
1230 putvar CFG_MSVC_LIB_${bits}
1231 putvar CFG_MSVC_LINK_${bits}
1232 putvar CFG_MSVC_INCLUDE_PATH_${bits}
1233 putvar CFG_MSVC_LIB_PATH_${bits}
1241 if [ -n "$CFG_PERF" ]
1243 HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
1244 if [ -z "$HAVE_PERF_LOGFD" ];
1246 CFG_PERF_WITH_LOGFD=1
1247 putvar CFG_PERF_WITH_LOGFD
1251 step_msg "making directories"
1254 doc doc/std doc/extra \
1267 make_dir $t/rustllvm
1270 for t in $CFG_TARGET
1275 make_dir $t/rt/stage$s
1276 make_dir $t/rt/jemalloc
1277 make_dir $t/rt/compiler-rt
1280 arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
1282 make_dir $t/rt/stage$s/$i
1289 for t in $CFG_TARGET
1291 # host lib dir stage0
1292 make_dir $h/stage0/lib
1294 # target bin dir stage0
1295 make_dir $h/stage0/lib/rustlib/$t/bin
1297 # target lib dir stage0
1298 make_dir $h/stage0/lib/rustlib/$t/lib
1303 make_dir $h/stage$i/bin
1306 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
1309 make_dir $h/stage$i/test
1312 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
1315 make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
1319 make_dir $h/test/run-pass
1320 make_dir $h/test/run-pass-valgrind
1321 make_dir $h/test/run-pass-fulldeps
1322 make_dir $h/test/run-fail
1323 make_dir $h/test/run-fail-fulldeps
1324 make_dir $h/test/compile-fail
1325 make_dir $h/test/parse-fail
1326 make_dir $h/test/compile-fail-fulldeps
1327 make_dir $h/test/bench
1328 make_dir $h/test/perf
1329 make_dir $h/test/pretty
1330 make_dir $h/test/debuginfo-gdb
1331 make_dir $h/test/debuginfo-lldb
1332 make_dir $h/test/codegen
1333 make_dir $h/test/rustdoc
1336 # Configure submodules
1337 step_msg "configuring submodules"
1339 # Have to be in the top of src directory for this
1340 if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ]
1344 msg "git: submodule sync"
1345 "${CFG_GIT}" submodule sync
1347 msg "git: submodule init"
1348 "${CFG_GIT}" submodule init
1350 # Disable submodules that we're not using
1351 if [ -n "${CFG_LLVM_ROOT}" ]; then
1352 msg "git: submodule deinit src/llvm"
1353 "${CFG_GIT}" submodule deinit src/llvm
1355 if [ -n "${CFG_JEMALLOC_ROOT}" ]; then
1356 msg "git: submodule deinit src/jemalloc"
1357 "${CFG_GIT}" submodule deinit src/jemalloc
1360 msg "git: submodule update"
1361 "${CFG_GIT}" submodule update
1362 need_ok "git failed"
1364 msg "git: submodule foreach sync"
1365 "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
1366 need_ok "git failed"
1368 msg "git: submodule foreach update"
1369 "${CFG_GIT}" submodule update --recursive
1370 need_ok "git failed"
1372 # NB: this is just for the sake of getting the submodule SHA1 values
1373 # and status written into the build log.
1374 msg "git: submodule status"
1375 "${CFG_GIT}" submodule status --recursive
1377 msg "git: submodule clobber"
1378 "${CFG_GIT}" submodule foreach --recursive git clean -dxf
1379 need_ok "git failed"
1380 "${CFG_GIT}" submodule foreach --recursive git checkout .
1381 need_ok "git failed"
1386 # Configure llvm, only if necessary
1387 step_msg "looking at LLVM"
1388 CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
1399 if [ -z $CFG_LLVM_ROOT ]
1401 LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
1402 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]
1404 LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized"
1405 # Just use LLVM straight from its build directory to
1406 # avoid 'make install' time
1407 LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
1409 LLVM_DBG_OPTS="--enable-optimized"
1410 LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
1412 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1414 LLVM_ASSERTION_OPTS="--disable-assertions"
1416 LLVM_ASSERTION_OPTS="--enable-assertions"
1418 # Apparently even if we request assertions be enabled for MSVC,
1419 # LLVM's CMake build system ignore this and outputs in `Release`
1421 if [ ${is_msvc} -eq 0 ]; then
1422 LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts
1426 msg "not reconfiguring LLVM, external LLVM root"
1427 # The user is using their own LLVM
1429 LLVM_INST_DIR=$CFG_LLVM_ROOT
1434 if [ ${do_reconfigure} -ne 0 ]
1436 # because git is hilarious, it might have put the module index
1437 # in a couple places.
1438 index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
1439 index2="${CFG_SRC_DIR}src/llvm/.git/index"
1440 for index in ${index1} ${index2}
1442 config_status="${LLVM_BUILD_DIR}/config.status"
1443 if test -e ${index} -a \
1444 -e ${config_status} -a \
1445 ${config_status} -nt ${index}
1447 msg "not reconfiguring LLVM, config.status is fresh"
1453 if [ ${do_reconfigure} -ne 0 ] && [ ${is_msvc} -ne 0 ]
1455 msg "configuring LLVM for $t with cmake"
1457 CMAKE_ARGS="-DLLVM_INCLUDE_TESTS=OFF"
1458 if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then
1459 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Debug"
1461 CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release"
1463 if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
1465 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=OFF"
1467 CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=ON"
1470 msg "configuring LLVM with:"
1472 case "$CFG_MSVC_ROOT" in
1474 generator="Visual Studio 14 2015"
1477 generator="Visual Studio 12 2013"
1480 err "can't determine generator for LLVM cmake"
1485 generator="$generator Win64"
1490 err "can only build LLVM for x86 platforms"
1493 (cd $LLVM_BUILD_DIR && "$CFG_CMAKE" $CFG_LLVM_SRC_DIR \
1496 need_ok "LLVM cmake configure failed"
1499 if [ ${do_reconfigure} -ne 0 ] && [ ${is_msvc} -eq 0 ]
1501 # LLVM's configure doesn't recognize the new Windows triples yet
1502 gnu_t=$(to_gnu_triple $t)
1504 msg "configuring LLVM for $gnu_t"
1506 LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
1507 LLVM_BUILD="--build=$gnu_t"
1508 LLVM_HOST="--host=$gnu_t"
1509 LLVM_TARGET="--target=$gnu_t"
1511 # Disable unused LLVM features
1512 LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none"
1513 # Disable term-info, linkage of which comes in multiple forms,
1514 # making our snapshots incompatible (#9334)
1515 LLVM_OPTS="$LLVM_OPTS --disable-terminfo"
1516 # Try to have LLVM pull in as few dependencies as possible (#9397)
1517 LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi"
1519 # Use win32 native thread/lock apis instead of pthread wrapper.
1520 # (llvm's configure tries to find pthread first, so we have to disable it explicitly.)
1521 # Also note that pthreads works badly on mingw-w64 systems: #8996
1522 case "$CFG_BUILD" in
1524 LLVM_OPTS="$LLVM_OPTS --disable-pthreads"
1530 LLVM_CXX_32="ccache clang++ -Qunused-arguments"
1531 LLVM_CC_32="ccache clang -Qunused-arguments"
1533 LLVM_CXX_64="ccache clang++ -Qunused-arguments"
1534 LLVM_CC_64="ccache clang -Qunused-arguments"
1537 LLVM_CXX_32="clang++ -Qunused-arguments"
1538 LLVM_CC_32="clang -Qunused-arguments"
1540 LLVM_CXX_64="clang++ -Qunused-arguments"
1541 LLVM_CC_64="clang -Qunused-arguments"
1544 LLVM_CXX_32="ccache g++"
1545 LLVM_CC_32="ccache gcc"
1547 LLVM_CXX_64="ccache g++"
1548 LLVM_CC_64="ccache gcc"
1559 msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
1560 if [ -n "$CFG_ENABLE_CCACHE" ]
1562 if [ -z "$CFG_CCACHE" ]
1564 err "ccache requested but not found"
1567 LLVM_CXX_32="ccache $CXX"
1568 LLVM_CC_32="ccache $CC"
1570 LLVM_CXX_64="ccache $CXX"
1571 LLVM_CC_64="ccache $CC"
1583 case "$CFG_CPUTYPE" in
1585 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1586 LLVM_CC_32="$LLVM_CC_32 -m32"
1588 LLVM_CFLAGS_32="-m32"
1589 LLVM_CXXFLAGS_32="-m32"
1590 LLVM_LDFLAGS_32="-m32"
1596 LLVM_CXX_32="$LLVM_CXX_32 -m32"
1597 LLVM_CC_32="$LLVM_CC_32 -m32"
1611 if echo $t | grep -q x86_64
1613 LLVM_CXX=$LLVM_CXX_64
1615 LLVM_CFLAGS=$LLVM_CFLAGS_64
1616 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
1617 LLVM_LDFLAGS=$LLVM_LDFLAGS_64
1619 LLVM_CXX=$LLVM_CXX_32
1621 LLVM_CFLAGS=$LLVM_CFLAGS_32
1622 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
1623 LLVM_LDFLAGS=$LLVM_LDFLAGS_32
1629 CXXFLAGS=$LLVM_CXXFLAGS
1630 LDFLAGS=$LLVM_LDFLAGS
1632 if [ -z "$CFG_DISABLE_LIBCPP" ] && [ -n "$CFG_USING_CLANG" ]; then
1633 LLVM_OPTS="$LLVM_OPTS --enable-libcpp"
1636 LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \
1637 $LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON"
1639 msg "configuring LLVM with:"
1649 case $CFG_SRC_DIR in
1650 /* | [a-z]:* | [A-Z]:*)
1651 ${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS
1654 ${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \
1658 need_ok "LLVM configure failed"
1663 # Construct variables for LLVM build and install directories for
1664 # each target. These will be named
1665 # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
1666 # target_triple will be converted to underscore, because bash
1667 # variables can't contain hyphens. The makefile will then have to
1669 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1670 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1671 eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
1672 eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
1676 step_msg "writing configuration"
1679 putvar CFG_SRC_DIR_RELATIVE
1680 putvar CFG_BUILD_DIR
1683 putvar CFG_CONFIGURE_ARGS
1687 putvar CFG_LIBDIR_RELATIVE
1688 putvar CFG_DISABLE_MANAGE_SUBMODULES
1689 putvar CFG_AARCH64_LINUX_ANDROID_NDK
1690 putvar CFG_ARM_LINUX_ANDROIDEABI_NDK
1693 # Avoid spurious warnings from clang by feeding it original source on
1694 # ccache-miss rather than preprocessed input.
1695 if [ -n "$CFG_ENABLE_CCACHE" ] && [ -n "$CFG_USING_CLANG" ]
1698 putvar CFG_CCACHE_CPP2
1701 if [ -n "$CFG_ENABLE_CCACHE" ]
1703 CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
1704 putvar CFG_CCACHE_BASEDIR
1708 if [ -n $BAD_PANDOC ]
1714 putvar CFG_LLVM_SRC_DIR
1718 CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
1719 CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
1720 putvar $CFG_LLVM_BUILD_DIR
1721 putvar $CFG_LLVM_INST_DIR
1725 copy_if_changed ${CFG_SRC_DIR}Makefile.in ./Makefile
1726 move_if_changed config.tmp config.mk
1730 if [ -z "$CFG_ENABLE_DEBUG" ]; then
1731 step_msg "configured in release mode. for development consider --enable-debug"
1736 msg "run \`make help\`"