#!/bin/sh msg() { echo "configure: $1" } step_msg() { msg msg "$1" msg } warn() { echo "configure: WARNING: $1" } err() { echo "configure: error: $1" exit 1 } run() { msg "$@" "$@" } need_ok() { if [ $? -ne 0 ] then err "$1" fi } need_cmd() { if command -v $1 >/dev/null 2>&1 then msg "found program $1" else err "need program $1" fi } make_dir() { if [ ! -d $1 ] then run mkdir -p $1 fi } copy_if_changed() { if cmp -s $1 $2 then msg "leaving $2 unchanged" else run cp -f $1 $2 chmod u-w $2 # make copied artifact read-only fi } move_if_changed() { if cmp -s $1 $2 then msg "leaving $2 unchanged" else run mv -f $1 $2 chmod u-w $2 # make moved artifact read-only fi } putvar() { local T eval T=\$$1 eval TLEN=\${#$1} if [ $TLEN -gt 35 ] then printf "configure: %-20s := %.35s ...\n" $1 "$T" else printf "configure: %-20s := %s %s\n" $1 "$T" "$2" fi printf "%-20s := %s\n" $1 "$T" >>config.tmp } putpathvar() { local T eval T=\$$1 eval TLEN=\${#$1} if [ $TLEN -gt 35 ] then printf "configure: %-20s := %.35s ...\n" $1 "$T" else printf "configure: %-20s := %s %s\n" $1 "$T" "$2" fi if [ -z "$T" ] then printf "%-20s := \n" $1 >>config.tmp else printf "%-20s := \"%s\"\n" $1 "$T" >>config.tmp fi } probe() { local V=$1 shift local P local T for P do T=$(command -v $P 2>&1) if [ $? -eq 0 ] then VER0=$($P --version 2>/dev/null | head -1 \ | sed -e 's/[^0-9]*\([vV]\?[0-9.]\+[^ ]*\).*/\1/' ) if [ $? -eq 0 -a "x${VER0}" != "x" ] then VER="($VER0)" else VER="" fi break else VER="" T="" fi done eval $V=\$T putpathvar $V "$VER" } probe_need() { local V=$1 probe $* eval VV=\$$V if [ -z "$VV" ] then err "needed, but unable to find any of: $*" fi } validate_opt () { for arg in $CFG_CONFIGURE_ARGS do isArgValid=0 for option in $BOOL_OPTIONS do if test --disable-$option = $arg then isArgValid=1 fi if test --enable-$option = $arg then isArgValid=1 fi done for option in $VAL_OPTIONS do if echo "$arg" | grep -q -- "--$option=" then isArgValid=1 fi done if [ "$arg" = "--help" ] then echo echo "No more help available for Configure options," echo "check the Wiki or join our IRC channel" break else if test $isArgValid -eq 0 then err "Option '$arg' is not recognized" fi fi done } # `valopt OPTION_NAME DEFAULT DOC` extracts a string-valued option # from command line, using provided default value for the option if # not present, and saves it to the generated config.mk. # # `valopt_nosave` is much the same, except that it does not save the # result to config.mk (instead the script should use `putvar` itself # later on to save it). `valopt_core` is the core upon which the # other two are built. valopt_core() { VAL_OPTIONS="$VAL_OPTIONS $2" local SAVE=$1 local OP=$2 local DEFAULT=$3 shift shift shift local DOC="$*" if [ $HELP -eq 0 ] then local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_') local V="CFG_${UOP}" local V_PROVIDED="${V}_PROVIDED" eval $V="$DEFAULT" for arg in $CFG_CONFIGURE_ARGS do if echo "$arg" | grep -q -- "--$OP=" then val=$(echo "$arg" | cut -f2 -d=) eval $V=$val eval $V_PROVIDED=1 fi done if [ "$SAVE" = "save" ] then putvar $V fi else if [ -z "$DEFAULT" ] then DEFAULT="" fi OP="${OP}=[${DEFAULT}]" printf " --%-30s %s\n" "$OP" "$DOC" fi } valopt_nosave() { valopt_core nosave "$@" } valopt() { valopt_core save "$@" } # `opt OPTION_NAME DEFAULT DOC` extracts a boolean-valued option from # command line, using the provided default value (0/1) for the option # if not present, and saves it to the generated config.mk. # # `opt_nosave` is much the same, except that it does not save the # result to config.mk (instead the script should use `putvar` itself # later on to save it). `opt_core` is the core upon which the other # two are built. opt_core() { BOOL_OPTIONS="$BOOL_OPTIONS $2" local SAVE=$1 local OP=$2 local DEFAULT=$3 shift shift shift local DOC="$*" local FLAG="" if [ $DEFAULT -eq 0 ] then FLAG="enable" DEFAULT_FLAG="disable" else FLAG="disable" DEFAULT_FLAG="enable" DOC="don't $DOC" fi if [ $HELP -eq 0 ] then for arg in $CFG_CONFIGURE_ARGS do if [ "$arg" = "--${FLAG}-${OP}" ] then OP=$(echo $OP | tr 'a-z-' 'A-Z_') FLAG=$(echo $FLAG | tr 'a-z' 'A-Z') local V="CFG_${FLAG}_${OP}" local V_PROVIDED="CFG_${FLAG}_${OP}_PROVIDED" eval $V=1 eval $V_PROVIDED=1 if [ "$SAVE" = "save" ] then putvar $V fi elif [ "$arg" = "--${DEFAULT_FLAG}-${OP}" ] then OP=$(echo $OP | tr 'a-z-' 'A-Z_') DEFAULT_FLAG=$(echo $DEFAULT_FLAG | tr 'a-z' 'A-Z') local V_PROVIDED="CFG_${DEFAULT_FLAG}_${OP}_PROVIDED" eval $V_PROVIDED=1 fi done else if [ ! -z "$META" ] then OP="$OP=<$META>" fi printf " --%-30s %s\n" "$FLAG-$OP" "$DOC" fi } opt_nosave() { opt_core nosave "$@" } opt() { opt_core save "$@" } envopt() { local NAME=$1 local V="CFG_${NAME}" eval VV=\$$V # If configure didn't set a value already, then check environment. # # (It is recommended that the configure script always check the # environment before setting any values to envopt variables; see # e.g. how CFG_CC is handled, where it first checks `-z "$CC"`, # and issues msg if it ends up employing that provided value.) if [ -z "$VV" ] then eval $V=\$$NAME eval VV=\$$V fi # If script or environment provided a value, save it. if [ ! -z "$VV" ] then putvar $V fi } to_llvm_triple() { case $1 in i686-w64-mingw32) echo i686-pc-windows-gnu ;; x86_64-w64-mingw32) echo x86_64-pc-windows-gnu ;; *) echo $1 ;; esac } to_gnu_triple() { case $1 in i686-pc-windows-gnu) echo i686-w64-mingw32 ;; x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;; *) echo $1 ;; esac } # Prints the absolute path of a directory to stdout abs_path() { local _path="$1" # Unset CDPATH because it causes havok: it makes the destination unpredictable # and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null # for good measure. (unset CDPATH && cd "$_path" > /dev/null && pwd) } msg "looking for configure programs" need_cmd cmp need_cmd mkdir need_cmd printf need_cmd cut need_cmd head need_cmd grep need_cmd xargs need_cmd cp need_cmd find need_cmd uname need_cmd date need_cmd tr need_cmd sed need_cmd file need_cmd make msg "inspecting environment" CFG_OSTYPE=$(uname -s) CFG_CPUTYPE=$(uname -m) if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ] then # Darwin's `uname -s` lies and always returns i386. We have to use sysctl # instead. if sysctl hw.optional.x86_64 | grep -q ': 1' then CFG_CPUTYPE=x86_64 fi fi # The goal here is to come up with the same triple as LLVM would, # at least for the subset of platforms we're willing to target. case $CFG_OSTYPE in Linux) CFG_OSTYPE=unknown-linux-gnu ;; FreeBSD) CFG_OSTYPE=unknown-freebsd ;; DragonFly) CFG_OSTYPE=unknown-dragonfly ;; Bitrig) CFG_OSTYPE=unknown-bitrig ;; OpenBSD) CFG_OSTYPE=unknown-openbsd ;; Darwin) CFG_OSTYPE=apple-darwin ;; MINGW*) # msys' `uname` does not print gcc configuration, but prints msys # configuration. so we cannot believe `uname -m`: # msys1 is always i686 and msys2 is always x86_64. # instead, msys defines $MSYSTEM which is MINGW32 on i686 and # MINGW64 on x86_64. CFG_CPUTYPE=i686 CFG_OSTYPE=pc-windows-gnu if [ "$MSYSTEM" = MINGW64 ] then CFG_CPUTYPE=x86_64 fi ;; MSYS*) CFG_OSTYPE=pc-windows-gnu ;; # Thad's Cygwin identifiers below # Vista 32 bit CYGWIN_NT-6.0) CFG_OSTYPE=pc-windows-gnu CFG_CPUTYPE=i686 ;; # Vista 64 bit CYGWIN_NT-6.0-WOW64) CFG_OSTYPE=pc-windows-gnu CFG_CPUTYPE=x86_64 ;; # Win 7 32 bit CYGWIN_NT-6.1) CFG_OSTYPE=pc-windows-gnu CFG_CPUTYPE=i686 ;; # Win 7 64 bit CYGWIN_NT-6.1-WOW64) CFG_OSTYPE=pc-windows-gnu CFG_CPUTYPE=x86_64 ;; # Win 8 # uname -s on 64-bit cygwin does not contain WOW64, so simply use uname -m to detect arch (works in my install) CYGWIN_NT-6.3) CFG_OSTYPE=pc-windows-gnu ;; # We do not detect other OS such as XP/2003 using 64 bit using uname. # 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. *) err "unknown OS type: $CFG_OSTYPE" ;; esac case $CFG_CPUTYPE in i386 | i486 | i686 | i786 | x86) CFG_CPUTYPE=i686 ;; xscale | arm) CFG_CPUTYPE=arm ;; armv7l) CFG_CPUTYPE=arm CFG_OSTYPE="${CFG_OSTYPE}eabihf" ;; aarch64) CFG_CPUTYPE=aarch64 ;; # At some point, when ppc64[le] support happens, this will need to do # something clever. For now it's safe to assume that we're only ever # interested in building 32 bit. powerpc | ppc | ppc64) CFG_CPUTYPE=powerpc ;; x86_64 | x86-64 | x64 | amd64) CFG_CPUTYPE=x86_64 ;; *) err "unknown CPU type: $CFG_CPUTYPE" esac # Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ] then # $SHELL does not exist in standard 'sh', so probably only exists # if configure is running in an interactive bash shell. /usr/bin/env # exists *everywhere*. BIN_TO_PROBE="$SHELL" if [ -z "$BIN_TO_PROBE" -a -e "/usr/bin/env" ]; then BIN_TO_PROBE="/usr/bin/env" fi if [ -n "$BIN_TO_PROBE" ]; then file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64" if [ $? != 0 ]; then CFG_CPUTYPE=i686 fi fi fi DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}" CFG_SRC_DIR="$(abs_path $(dirname $0))/" CFG_BUILD_DIR="$(pwd)/" CFG_SELF="$0" CFG_CONFIGURE_ARGS="$@" OPTIONS="" HELP=0 if [ "$1" = "--help" ] then HELP=1 shift echo echo "Usage: $CFG_SELF [options]" echo echo "Options:" echo else msg "recreating config.tmp" echo '' >config.tmp step_msg "processing $CFG_SELF args" fi BOOL_OPTIONS="" VAL_OPTIONS="" opt debug 0 "debug mode" opt valgrind 0 "run tests with valgrind (memcheck by default)" opt helgrind 0 "run tests with helgrind instead of memcheck" opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind" opt docs 1 "build standard library documentation" opt compiler-docs 0 "build compiler documentation" opt optimize-tests 1 "build tests with optimizations" opt libcpp 1 "build with llvm with libc++ instead of libstdc++ when using clang" opt llvm-assertions 0 "build LLVM with assertions" opt debug-assertions 0 "build with debugging assertions" opt fast-make 0 "use .gitmodules as timestamp for submodule deps" opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds" opt local-rust 0 "use an installed rustc rather than downloading a snapshot" opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM" opt rpath 0 "build rpaths into rustc itself" # This is used by the automation to produce single-target nightlies opt dist-host-only 0 "only install bins for the host architecture" opt inject-std-version 1 "inject the current compiler version of libstd into programs" opt llvm-version-check 1 "don't check if the LLVM version is supported, build anyway" # Optimization and debugging options. These may be overridden by the release channel, etc. opt_nosave optimize 1 "build optimized rust code" opt_nosave optimize-cxx 1 "build optimized C++ code" opt_nosave optimize-llvm 1 "build optimized LLVM" opt_nosave llvm-assertions 0 "build LLVM with assertions" opt_nosave debug-assertions 0 "build with debugging assertions" opt_nosave debuginfo 0 "build with debugger metadata" opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill" valopt localstatedir "/var/lib" "local state directory" valopt sysconfdir "/etc" "install system configuration files" valopt datadir "${CFG_PREFIX}/share" "install data" valopt infodir "${CFG_PREFIX}/share/info" "install additional info" valopt llvm-root "" "set LLVM root" valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located" valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple" valopt android-cross-path "/opt/ndk_standalone" "Android NDK standalone path" valopt release-channel "dev" "the name of the release channel to build" # Many of these are saved below during the "writing configuration" step # (others are conditionally saved). opt_nosave manage-submodules 1 "let the build manage the git submodules" opt_nosave clang 0 "prefer clang to gcc for building the runtime" opt_nosave jemalloc 1 "build liballoc with jemalloc" valopt_nosave prefix "/usr/local" "set installation prefix" valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary" valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples" valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples" valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH" # Temporarily support old triples until buildbots get updated CFG_BUILD=$(to_llvm_triple $CFG_BUILD) putvar CFG_BUILD # Yes, this creates a duplicate entry, but the last one wins. CFG_HOST=$(to_llvm_triple $CFG_HOST) CFG_TARGET=$(to_llvm_triple $CFG_TARGET) # On windows we just store the libraries in the bin directory because # there's no rpath. This is where the build system itself puts libraries; # --libdir is used to configure the installation directory. # FIXME: This needs to parameterized over target triples. Do it in platform.mk if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] then CFG_LIBDIR_RELATIVE=bin else CFG_LIBDIR_RELATIVE=lib fi valopt libdir "${CFG_PREFIX}/${CFG_LIBDIR_RELATIVE}" "install libraries (do not set it on windows platform)" case "$CFG_LIBDIR" in "$CFG_PREFIX"/*) CAT_INC=2;; "$CFG_PREFIX"*) CAT_INC=1;; *) err "libdir must begin with the prefix. Use --prefix to set it accordingly.";; esac CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-` if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] && [ "$CFG_LIBDIR_RELATIVE" != "bin" ]; then err "libdir on windows should be set to 'bin'" fi if [ $HELP -eq 1 ] then echo exit 0 fi # Validate Options step_msg "validating $CFG_SELF args" validate_opt # Validate the release channel, and configure options case "$CFG_RELEASE_CHANNEL" in nightly ) msg "overriding settings for $CFG_RELEASE_CHANNEL" CFG_ENABLE_LLVM_ASSERTIONS=1 ;; dev | beta | stable) ;; *) err "release channel must be 'dev', 'nightly', 'beta' or 'stable'" ;; esac # Adjust perf and debug options for debug mode if [ -n "$CFG_ENABLE_DEBUG" ]; then msg "debug mode enabled, setting performance options" if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then msg "optimization not explicitly enabled, disabling optimization" CFG_DISABLE_OPTIMIZE=1 CFG_DISABLE_OPTIMIZE_CXX=1 fi CFG_ENABLE_DEBUG_ASSERTIONS=1 CFG_ENABLE_DEBUG_JEMALLOC=1 CFG_ENABLE_DEBUGINFO=1 CFG_ENABLE_LLVM_ASSERTIONS=1 fi # OK, now write the debugging options if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi # A magic value that allows the compiler to use unstable features # during the bootstrap even when doing so would normally be an error # because of feature staging or because the build turns on # warnings-as-errors and unstable features default to warnings. The # build has to match this key in an env var. Meant to be a mild # deterrent from users just turning on unstable features on the stable # channel. # Basing CFG_BOOTSTRAP_KEY on CFG_BOOTSTRAP_KEY lets it get picked up # during a Makefile reconfig. CFG_BOOTSTRAP_KEY="${CFG_BOOTSTRAP_KEY-`date +%H:%M:%S`}" putvar CFG_BOOTSTRAP_KEY step_msg "looking for build programs" probe_need CFG_CURLORWGET curl wget probe_need CFG_PYTHON python2.7 python2.6 python2 python python_version=$($CFG_PYTHON -V 2>&1) if [ $(echo $python_version | grep -c '^Python 2\.[4567]') -ne 1 ]; then err "Found $python_version, but LLVM requires Python 2.4-2.7" fi # If we have no git directory then we are probably a tarball distribution # and shouldn't attempt to load submodules if [ ! -e ${CFG_SRC_DIR}.git ] then probe CFG_GIT git msg "git: no git directory. disabling submodules" CFG_DISABLE_MANAGE_SUBMODULES=1 else probe_need CFG_GIT git fi probe CFG_CLANG clang++ probe CFG_CCACHE ccache probe CFG_GCC gcc probe CFG_LD ld probe CFG_VALGRIND valgrind probe CFG_PERF perf probe CFG_ISCC iscc probe CFG_ANTLR4 antlr4 probe CFG_GRUN grun probe CFG_FLEX flex probe CFG_BISON bison probe CFG_PANDOC pandoc probe CFG_XELATEX xelatex probe CFG_GDB gdb probe CFG_LLDB lldb # On MacOS X, invoking `javac` pops up a dialog if the JDK is not # installed. Since `javac` is only used if `antlr4` is available, # probe for it only in this case. if [ ! -z "$CFG_ANTLR4" ] then probe CFG_JAVAC javac fi if [ ! -z "$CFG_GDB" ] then # Store GDB's version CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1) putvar CFG_GDB_VERSION fi if [ ! -z "$CFG_LLDB" ] then # Store LLDB's version CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1) putvar CFG_LLDB_VERSION # If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from # LLDB via the -P commandline options. if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ] then CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P) # If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable if [ ! -d "$CFG_LLDB_PYTHON_DIR" ] then CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND" fi putvar CFG_LLDB_PYTHON_DIR fi fi step_msg "looking for target specific programs" probe CFG_ADB adb if [ ! -z "$CFG_PANDOC" ] then # Extract "MAJOR MINOR" from Pandoc's version number PV_MAJOR_MINOR=$(pandoc --version | grep '^pandoc' | sed -E 's/pandoc(.exe)? ([0-9]+)\.([0-9]+).*/\2 \3/') MIN_PV_MAJOR="1" MIN_PV_MINOR="9" # these patterns are shell globs, *not* regexps PV_MAJOR=${PV_MAJOR_MINOR% *} PV_MINOR=${PV_MAJOR_MINOR#* } if [ "$PV_MAJOR" -lt "$MIN_PV_MAJOR" ] || [ "$PV_MINOR" -lt "$MIN_PV_MINOR" ] then step_msg "pandoc $PV_MAJOR.$PV_MINOR is too old. Need at least $MIN_PV_MAJOR.$MIN_PV_MINOR. Disabling" BAD_PANDOC=1 fi fi BIN_SUF= if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] then BIN_SUF=.exe fi if [ ! -z "$CFG_ENABLE_LOCAL_RUST" ] then system_rustc=$(which rustc) if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ] then : # everything already configured elif [ -n "$system_rustc" ] then # we assume that rustc is in a /bin directory CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc} else err "no local rust to use" fi CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}" LRV=`$CMD --version` if [ $? -ne 0 ] then step_msg "failure while running $CMD --version" exit 1 fi step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV" putvar CFG_LOCAL_RUST_ROOT fi # Force freebsd to build with clang; gcc doesn't like us there if [ $CFG_OSTYPE = unknown-freebsd ] then step_msg "on FreeBSD, forcing use of clang" CFG_ENABLE_CLANG=1 fi # Force bitrig to build with clang; gcc doesn't like us there if [ $CFG_OSTYPE = unknown-bitrig ] then step_msg "on Bitrig, forcing use of clang, disabling jemalloc" CFG_ENABLE_CLANG=1 CFG_DISABLE_JEMALLOC=1 fi if [ -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ] then err "either clang or gcc is required" fi # OS X 10.9, gcc is actually clang. This can cause some confusion in the build # system, so if we find that gcc is clang, we should just use clang directly. if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ] then CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version") if [ $? -eq 0 ] then step_msg "on OS X 10.9, forcing use of clang" CFG_ENABLE_CLANG=1 else if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then step_msg "older GCC found, using clang instead" CFG_ENABLE_CLANG=1 else # on OS X, with xcode 5 and newer, certain developers may have # cc, gcc and g++ point to a mixture of clang and gcc # if so, this will create very strange build errors # this last stanza is to detect some such problems and save the future rust # contributor some time solving that issue. # this detection could be generalized to other OSes aside from OS X # but the issue seems most likely to happen on OS X chk_cc () { $1 --version 2> /dev/null | grep -q $2 } # check that gcc, cc and g++ all point to the same compiler. # note that for xcode 5, g++ points to clang, not clang++ if !((chk_cc gcc clang && chk_cc g++ clang) || (chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then err "the gcc and g++ in your path point to different compilers. Check which versions are in your path with gcc --version and g++ --version. To resolve this problem, either fix your PATH or run configure with --enable-clang" fi fi fi fi # Okay, at this point, we have made up our minds about whether we are # going to force CFG_ENABLE_CLANG or not; save the setting if so. if [ ! -z "$CFG_ENABLE_CLANG" ] then putvar CFG_ENABLE_CLANG fi # Same with jemalloc. save the setting here. if [ ! -z "$CFG_DISABLE_JEMALLOC" ] then putvar CFG_DISABLE_JEMALLOC fi if [ ! -z "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ] then step_msg "using custom LLVM at $CFG_LLVM_ROOT" LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config" LLVM_VERSION=$($LLVM_CONFIG --version) case $LLVM_VERSION in (3.[5-6]*) msg "found ok version of LLVM: $LLVM_VERSION" ;; (*) err "bad LLVM version: $LLVM_VERSION, need >=3.5" ;; esac fi # Even when the user overrides the choice of CC, still try to detect # clang to disable some clang-specific warnings. We here draw a # distinction between: # # CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang, # CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang. # # This distinction is important because there are some safeguards we # would prefer to skip when merely CFG_USING_CLANG is set; but when # CFG_ENABLE_CLANG is set, that indicates that we are opting into # running such safeguards. if [ ! -z "$CC" ] then msg "skipping compiler inference steps; using provided CC=$CC" CFG_CC="$CC" CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang") if [ $? -eq 0 ] then step_msg "note, user-provided CC looks like clang; CC=$CC." CFG_USING_CLANG=1 putvar CFG_USING_CLANG fi else if [ ! -z "$CFG_ENABLE_CLANG" ] then if [ -z "$CFG_CLANG" ] then err "clang requested but not found" fi CFG_CC="$CFG_CLANG" CFG_USING_CLANG=1 putvar CFG_USING_CLANG else CFG_CC="gcc" fi fi if [ ! -z "$CFG_ENABLE_CLANG" ] then if [ -z "$CC" ] || [[ $CC == *clang ]] then CFG_CLANG_VERSION=$($CFG_CC \ --version \ | grep version \ | sed 's/.*\(version .*\)/\1/; s/.*based on \(LLVM .*\))/\1/' \ | cut -d ' ' -f 2) case $CFG_CLANG_VERSION in (3.2* | 3.3* | 3.4* | 3.5* | 3.6*) step_msg "found ok version of CLANG: $CFG_CLANG_VERSION" if [ -z "$CC" ] then CFG_CC="clang" CFG_CXX="clang++" fi ;; (*) err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn" ;; esac else msg "skipping CFG_ENABLE_CLANG version check; provided CC=$CC" fi fi if [ ! -z "$CFG_ENABLE_CCACHE" ] then if [ -z "$CC" ] then if [ -z "$CFG_CCACHE" ] then err "ccache requested but not found" fi CFG_CC="ccache $CFG_CC" fi fi if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ] then err "either clang or gcc is required" fi # All safeguards based on $CFG_ENABLE_CLANG should occur before this # point in the script; after this point, script logic should inspect # $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG. # Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS} envopt CC envopt CXX envopt CPP envopt CFLAGS envopt CXXFLAGS # a little post-processing of various config values CFG_PREFIX=${CFG_PREFIX%/} CFG_MANDIR=${CFG_MANDIR%/} CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')" CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')" CFG_SUPPORTED_TARGET="" for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)" done # copy host-triples to target-triples so that hosts are a subset of targets V_TEMP="" for i in $CFG_HOST $CFG_TARGET; do echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i" done CFG_TARGET=$V_TEMP # check target-specific tool-chains for i in $CFG_TARGET do L_CHECK=false for j in $CFG_SUPPORTED_TARGET do if [ $i = $j ] then L_CHECK=true fi done if [ $L_CHECK = false ] then err "unsupported target triples \"$i\" found" fi case $i in arm-linux-androideabi) if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc ] then err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc not found" fi if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ ] then err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ not found" fi if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar ] then err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar not found" fi ;; arm-apple-darwin) if [ $CFG_OSTYPE != apple-darwin ] then err "The iOS target is only supported on Mac OS X" fi ;; *) ;; esac done if [ ! -z "$CFG_PERF" ] then HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'` if [ -z "$HAVE_PERF_LOGFD" ]; then CFG_PERF_WITH_LOGFD=1 putvar CFG_PERF_WITH_LOGFD fi fi step_msg "making directories" for i in \ doc doc/std doc/extra \ dl tmp dist do make_dir $i done for t in $CFG_HOST do make_dir $t/llvm done for t in $CFG_HOST do make_dir $t/rustllvm done for t in $CFG_TARGET do make_dir $t/rt for s in 0 1 2 3 do make_dir $t/rt/stage$s make_dir $t/rt/jemalloc for i in \ isaac sync test \ arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc do make_dir $t/rt/stage$s/$i done done done for h in $CFG_HOST do for t in $CFG_TARGET do # host lib dir stage0 make_dir $h/stage0/lib # target bin dir stage0 make_dir $h/stage0/lib/rustlib/$t/bin # target lib dir stage0 make_dir $h/stage0/lib/rustlib/$t/lib for i in 0 1 2 3 do # host bin dir make_dir $h/stage$i/bin # host lib dir make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE # host test dir make_dir $h/stage$i/test # target bin dir make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin # target lib dir make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib done done make_dir $h/test/run-pass make_dir $h/test/run-pass-valgrind make_dir $h/test/run-pass-fulldeps make_dir $h/test/run-fail make_dir $h/test/compile-fail make_dir $h/test/parse-fail make_dir $h/test/compile-fail-fulldeps make_dir $h/test/bench make_dir $h/test/perf make_dir $h/test/pretty make_dir $h/test/debuginfo-gdb make_dir $h/test/debuginfo-lldb make_dir $h/test/codegen make_dir $h/test/rustdoc done # Configure submodules step_msg "configuring submodules" # Have to be in the top of src directory for this if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ] then cd ${CFG_SRC_DIR} msg "git: submodule sync" "${CFG_GIT}" submodule sync msg "git: submodule init" "${CFG_GIT}" submodule init # Disable submodules that we're not using if [ ! -z "${CFG_LLVM_ROOT}" ]; then msg "git: submodule deinit src/llvm" "${CFG_GIT}" submodule deinit src/llvm fi if [ ! -z "${CFG_JEMALLOC_ROOT}" ]; then msg "git: submodule deinit src/jemalloc" "${CFG_GIT}" submodule deinit src/jemalloc fi msg "git: submodule update" "${CFG_GIT}" submodule update need_ok "git failed" msg "git: submodule foreach sync" "${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi' need_ok "git failed" msg "git: submodule foreach update" "${CFG_GIT}" submodule update --recursive need_ok "git failed" # NB: this is just for the sake of getting the submodule SHA1 values # and status written into the build log. msg "git: submodule status" "${CFG_GIT}" submodule status --recursive msg "git: submodule clobber" "${CFG_GIT}" submodule foreach --recursive git clean -dxf need_ok "git failed" "${CFG_GIT}" submodule foreach --recursive git checkout . need_ok "git failed" cd ${CFG_BUILD_DIR} fi # Configure llvm, only if necessary step_msg "looking at LLVM" CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/ for t in $CFG_HOST do do_reconfigure=1 if [ -z $CFG_LLVM_ROOT ] then LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ] then LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized" # Just use LLVM straight from its build directory to # avoid 'make install' time LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug else LLVM_DBG_OPTS="--enable-optimized" LLVM_INST_DIR=$LLVM_BUILD_DIR/Release fi if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ] then LLVM_ASSERTION_OPTS="--disable-assertions" else LLVM_ASSERTION_OPTS="--enable-assertions" LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts fi else msg "not reconfiguring LLVM, external LLVM root" # The user is using their own LLVM LLVM_BUILD_DIR= LLVM_INST_DIR=$CFG_LLVM_ROOT do_reconfigure=0 fi if [ ${do_reconfigure} -ne 0 ] then # because git is hilarious, it might have put the module index # in a couple places. index1="${CFG_SRC_DIR}.git/modules/src/llvm/index" index2="${CFG_SRC_DIR}src/llvm/.git/index" for index in ${index1} ${index2} do config_status="${LLVM_BUILD_DIR}/config.status" if test -e ${index} -a \ -e ${config_status} -a \ ${config_status} -nt ${index} then msg "not reconfiguring LLVM, config.status is fresh" do_reconfigure=0 fi done fi if [ ${do_reconfigure} -ne 0 ] then # LLVM's configure doesn't recognize the new Windows triples yet gnu_t=$(to_gnu_triple $t) msg "configuring LLVM for $gnu_t" LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc" LLVM_BUILD="--build=$gnu_t" LLVM_HOST="--host=$gnu_t" LLVM_TARGET="--target=$gnu_t" # Disable unused LLVM features LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none" # Disable term-info, linkage of which comes in multiple forms, # making our snapshots incompatible (#9334) LLVM_OPTS="$LLVM_OPTS --disable-terminfo" # Try to have LLVM pull in as few dependencies as possible (#9397) LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi" # Use win32 native thread/lock apis instead of pthread wrapper. # (llvm's configure tries to find pthread first, so we have to disable it explicitly.) # Also note that pthreads works badly on mingw-w64 systems: #8996 case "$CFG_BUILD" in (*-windows-*) LLVM_OPTS="$LLVM_OPTS --disable-pthreads" ;; esac case "$CFG_CC" in ("ccache clang") LLVM_CXX_32="ccache clang++ -Qunused-arguments" LLVM_CC_32="ccache clang -Qunused-arguments" LLVM_CXX_64="ccache clang++ -Qunused-arguments" LLVM_CC_64="ccache clang -Qunused-arguments" ;; ("clang") LLVM_CXX_32="clang++ -Qunused-arguments" LLVM_CC_32="clang -Qunused-arguments" LLVM_CXX_64="clang++ -Qunused-arguments" LLVM_CC_64="clang -Qunused-arguments" ;; ("ccache gcc") LLVM_CXX_32="ccache g++" LLVM_CC_32="ccache gcc" LLVM_CXX_64="ccache g++" LLVM_CC_64="ccache gcc" ;; ("gcc") LLVM_CXX_32="g++" LLVM_CC_32="gcc" LLVM_CXX_64="g++" LLVM_CC_64="gcc" ;; (*) msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC" LLVM_CXX_32="$CXX" LLVM_CC_32="$CC" LLVM_CXX_64="$CXX" LLVM_CC_64="$CC" ;; esac case "$CFG_CPUTYPE" in (x86*) LLVM_CXX_32="$LLVM_CXX_32 -m32" LLVM_CC_32="$LLVM_CC_32 -m32" LLVM_CFLAGS_32="-m32" LLVM_CXXFLAGS_32="-m32" LLVM_LDFLAGS_32="-m32" LLVM_CFLAGS_64="" LLVM_CXXFLAGS_64="" LLVM_LDFLAGS_64="" LLVM_CXX_32="$LLVM_CXX_32 -m32" LLVM_CC_32="$LLVM_CC_32 -m32" ;; (*) LLVM_CFLAGS_32="" LLVM_CXXFLAGS_32="" LLVM_LDFLAGS_32="" LLVM_CFLAGS_64="" LLVM_CXXFLAGS_64="" LLVM_LDFLAGS_64="" ;; esac if echo $t | grep -q x86_64 then LLVM_CXX=$LLVM_CXX_64 LLVM_CC=$LLVM_CC_64 LLVM_CFLAGS=$LLVM_CFLAGS_64 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64 LLVM_LDFLAGS=$LLVM_LDFLAGS_64 else LLVM_CXX=$LLVM_CXX_32 LLVM_CC=$LLVM_CC_32 LLVM_CFLAGS=$LLVM_CFLAGS_32 LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32 LLVM_LDFLAGS=$LLVM_LDFLAGS_32 fi CXX=$LLVM_CXX CC=$LLVM_CC CFLAGS=$LLVM_CFLAGS CXXFLAGS=$LLVM_CXXFLAGS LDFLAGS=$LLVM_LDFLAGS if [ -z "$CFG_DISABLE_LIBCPP" ] && [ -n "$CFG_USING_CLANG" ]; then LLVM_OPTS="$LLVM_OPTS --enable-libcpp" fi LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \ $LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON" msg "configuring LLVM with:" msg "$LLVM_FLAGS" export CXX export CC export CFLAGS export CXXFLAGS export LDFLAGS cd $LLVM_BUILD_DIR case $CFG_SRC_DIR in /* | [a-z]:* | [A-Z]:*) ${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS ;; *) ${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \ $LLVM_FLAGS ;; esac need_ok "LLVM configure failed" cd $CFG_BUILD_DIR fi # Construct variables for LLVM build and install directories for # each target. These will be named # CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in # target_triple will be converted to underscore, because bash # variables can't contain hyphens. The makefile will then have to # convert back. CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _) CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _) eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'" eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'" done step_msg "writing configuration" putvar CFG_SRC_DIR putvar CFG_BUILD_DIR putvar CFG_OSTYPE putvar CFG_CPUTYPE putvar CFG_CONFIGURE_ARGS putvar CFG_PREFIX putvar CFG_HOST putvar CFG_TARGET putvar CFG_LIBDIR_RELATIVE putvar CFG_DISABLE_MANAGE_SUBMODULES putvar CFG_ANDROID_CROSS_PATH putvar CFG_MANDIR # Avoid spurious warnings from clang by feeding it original source on # ccache-miss rather than preprocessed input. if [ ! -z "$CFG_ENABLE_CCACHE" ] && [ ! -z "$CFG_USING_CLANG" ] then CFG_CCACHE_CPP2=1 putvar CFG_CCACHE_CPP2 fi if [ ! -z "$CFG_ENABLE_CCACHE" ] then CFG_CCACHE_BASEDIR=${CFG_SRC_DIR} putvar CFG_CCACHE_BASEDIR fi if [ ! -z $BAD_PANDOC ] then CFG_PANDOC= putvar CFG_PANDOC fi putvar CFG_LLVM_SRC_DIR for t in $CFG_HOST do CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _) CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _) putvar $CFG_LLVM_BUILD_DIR putvar $CFG_LLVM_INST_DIR done # Munge any paths that appear in config.mk back to posix-y cp config.tmp config.tmp.bak sed -e 's@ \([a-zA-Z]\):[/\\]@ /\1/@g;' config.tmp rm -f config.tmp.bak msg copy_if_changed ${CFG_SRC_DIR}Makefile.in ./Makefile move_if_changed config.tmp config.mk rm -f config.tmp touch config.stamp if [ -z "$CFG_ENABLE_DEBUG" ]; then step_msg "configured in release mode. for development consider --enable-debug" else step_msg "complete" fi msg "run \`make help\`" msg