rust/configure

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#!/bin/sh
msg() {
echo "configure: $1"
}
step_msg() {
msg
msg "$1"
msg
}
warn() {
echo "configure: WARNING: $1"
}
err() {
echo "configure: error: $1"
exit 1
}
need_cmd() {
if which $1 >/dev/null 2>&1
then msg "found $1"
else err "need $1"
fi
}
make_dir() {
if [ ! -d $1 ]
then
msg "mkdir -p $1"
mkdir -p $1
fi
}
copy() {
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msg "cp $1 $2"
cp $1 $2
}
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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\n" $1 "$T"
fi
printf "%-20s := %s\n" $1 "$T" >>config.mk
}
probe() {
local V=$1
local P=$2
local T
T=$(which $P 2>&1)
if [ $? -ne 0 ]
then
T=""
fi
eval $V=\$T
putvar $V
}
probe_need() {
local V=$1
local P=$2
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probe $V $P
eval VV=\$$V
if [ -z "$VV" ]
then
err "required program '$P' not found"
fi
}
valopt() {
local OP=$1
local DEFAULT=$2
shift
shift
local DOC="$*"
if [ $HELP -eq 0 ]
then
local UOP=$(echo $OP | tr 'a-z-' 'A-Z_')
local V="CFG_${UOP}"
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
fi
done
putvar $V
else
if [ -z "$DEFAULT" ]
then
DEFAULT="<none>"
fi
OP="${OP}=[${DEFAULT}]"
printf " --%-30s %s\n" "$OP" "$DOC"
fi
}
opt() {
local OP=$1
local DEFAULT=$2
shift
shift
local DOC="$*"
local FLAG=""
if [ $DEFAULT -eq 0 ]
then
FLAG="enable"
else
FLAG="disable"
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}"
eval $V=1
putvar $V
fi
done
else
if [ ! -z "$META" ]
then
OP="$OP=<$META>"
fi
printf " --%-30s %s\n" "$FLAG-$OP" "$DOC"
fi
}
msg "looking for configure programs"
need_cmd mkdir
need_cmd printf
need_cmd cut
need_cmd grep
need_cmd xargs
need_cmd cp
need_cmd find
need_cmd uname
need_cmd date
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need_cmd tr
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need_cmd sed
msg "inspecting environment"
CFG_OSTYPE=$(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 ': 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
;;
Darwin)
CFG_OSTYPE=apple-darwin
;;
MINGW32*)
CFG_OSTYPE=pc-mingw32
;;
*)
err "unknown OS type: $CFG_OSTYPE"
;;
esac
case $CFG_CPUTYPE in
i386 | i486 | i686 | i786 | x86)
CFG_CPUTYPE=i686
;;
xscale | arm)
CFG_CPUTYPE=arm
;;
x86_64 | x86-64 | x64)
CFG_CPUTYPE=x86_64
;;
*)
err "unknown CPU type: $CFG_CPUTYPE"
esac
CFG_HOST_TRIPLE="${CFG_CPUTYPE}-${CFG_OSTYPE}"
CFG_SELF=$(echo $0 | tr '\\' '/')
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CFG_SRC_DIR=${CFG_SELF%${CFG_SELF##*/}}
CFG_BUILD_DIR=$(echo $PWD | tr '\\' '/')
CFG_CONFIGURE_ARGS="$@"
OPTIONS=""
HELP=0
if [ "$1" = "--help" ]
then
HELP=1
shift
echo ""
echo "Usage: $CFG_SELF [options]"
echo ""
echo "Options:"
echo ""
else
msg "recreating config.mk"
echo '' >config.mk
step_msg "processing $CFG_SELF args"
fi
opt sharedstd 1 "build libstd as a shared library"
opt valgrind 1 "run tests with valgrind"
opt docs 1 "build documentation"
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opt optimize 1 "build optimized rust code"
opt mingw-cross 0 "cross-compile for win32 using mingw"
opt clang 0 "prefer gcc to clang for building the runtime"
valopt prefix "/usr/local" "set installation prefix"
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valopt llvm-root "" "set LLVM root"
valopt target-triples "" "LLVM target triples (defaults to host if unset)"
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if [ $HELP -eq 1 ]
then
echo ""
exit 0
fi
step_msg "writing out basic parameters"
putvar CFG_SRC_DIR
putvar CFG_BUILD_DIR
putvar CFG_OSTYPE
putvar CFG_CPUTYPE
putvar CFG_CONFIGURE_ARGS
step_msg "looking for build programs"
probe_need CFG_PERL perl
probe_need CFG_PYTHON python
probe_need CFG_CURL curl
probe CFG_GIT git
probe CFG_CLANG clang++
probe CFG_GCC gcc
probe CFG_LLVM_CONFIG llvm-config
probe CFG_VALGRIND valgrind
probe CFG_PERF perf
probe CFG_MAKEINFO makeinfo
probe CFG_TEXI2PDF texi2pdf
probe CFG_TEX tex
probe CFG_MAKENSIS makensis
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probe CFG_NATURALDOCS naturaldocs
if [ -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
then
err "either clang or gcc is required"
fi
if head -n 1 ${CFG_SRC_DIR}src/snapshots.txt | grep -q '^T'
then
CFG_IN_TRANSITION=1
putvar CFG_IN_TRANSITION
fi
# Valgrind is only reliable on Linux. On Windows it doesn't work at all, and
# on the Mac the dynamic linker causes Valgrind to emit a huge stream of
# errors.
if [ $CFG_OSTYPE != unknown-linux-gnu ] && [ $CFG_OSTYPE != apple-darwin ]
then
CFG_BAD_VALGRIND=1
putvar CFG_BAD_VALGRIND
fi
if [ ! -z "$CFG_LLVM_ROOT" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
then
step_msg "using custom LLVM"
LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
LLVM_VERSION=$($CFG_LLVM_CONFIG --version)
case $LLVM_VERSION in
(3.0svn | 3.0 | 3.1svn)
step_msg "found ok version of LLVM: $CFG_LLVM_VERSION"
;;
(*)
err "bad LLVM version: $CFG_LLVM_VERSION, need >=3.0svn"
;;
esac
fi
if [ ! -z "$CFG_ENABLE_CLANG" ]
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then
if [ -z "$CFG_CLANG" ]
then
err "clang requested but not found"
fi
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CFG_CLANG_VERSION=$("$CFG_CLANG" \
--version \
| grep version \
| cut -d ' ' -f 3)
case $CFG_CLANG_VERSION in
(3.0svn | 3.0)
step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
CFG_C_COMPILER="clang"
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;;
(*)
msg "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn; disabling"
CFG_C_COMPILER="gcc"
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;;
esac
else
CFG_C_COMPILER="gcc"
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fi
if [ -z "$CFG_PREFIX" ]
then
CFG_PREFIX=/usr/local
fi
if [ -z "$CFG_TARGET_TRIPLES" ]
then
CFG_TARGET_TRIPLES="${CFG_HOST_TRIPLE}"
fi
putvar CFG_HOST_TRIPLE
putvar CFG_TARGET_TRIPLES
putvar CFG_C_COMPILER
putvar CFG_PREFIX
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putvar CFG_LLVM_ROOT
step_msg "making directories"
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for i in \
doc doc/std \
nd nd/std \
dl \
test/run-pass test/run-fail test/compile-fail \
test/bench test/perf test/pretty \
llvm
do
make_dir $i
done
make_dir rustllvm
for t in $CFG_TARGET_TRIPLES
do
make_dir rustllvm/$t
done
make_dir rt
for t in $CFG_TARGET_TRIPLES
do
make_dir rt/$t
for i in \
isaac bigint sync test arch/i386 arch/x86_64 \
libuv libuv/src/ares libuv/src/eio libuv/src/ev
do
make_dir rt/$t/$i
done
done
for t in $CFG_TARGET_TRIPLES
do
for i in 0 1 2 3
do
# host bin dir
make_dir stage$i/bin
# host lib dir
make_dir stage$i/lib
# target bin dir
make_dir stage$i/lib/rustc/$t/bin
# target lib dir
make_dir stage$i/lib/rustc/$t/lib
done
done
# Configure submodules
step_msg "configuring submodules"
# Have to be in the top of src directory for this
cd ${CFG_SRC_DIR}
SUBMODULE_STATUS=$("${CFG_GIT}" submodule status)
NEED_INIT_COUNT=$(echo "$SUBMODULE_STATUS" | grep -c "^-")
NEED_UPDATE_COUNT=$(echo "$SUBMODULE_STATUS" | grep -c "^+")
NEED_INIT=$(test $NEED_INIT_COUNT -gt 0)$?
NEED_UPDATE=$(test "($NEED_INIT)" -o "$NEED_UPDATE_COUNT" -gt 0)$?
if [ $NEED_INIT ]
then
msg "git: submodule init"
${CFG_GIT} submodule init --quiet
fi
if [ $NEED_UPDATE ]
then
msg "git: submodule update"
${CFG_GIT} submodule update --quiet
fi
cd ${CFG_BUILD_DIR}
msg
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# Configure llvm. Here we go...
CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm
CFG_LLVM_BUILD_DIR=${CFG_BUILD_DIR}/llvm
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# Just use LLVM straight from its build directory to avoid 'make install' time
CFG_LLVM_INST_DIR=${CFG_LLVM_BUILD_DIR}/Release+Asserts
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if [ -z $CFG_LLVM_ROOT ]
then
step_msg "configuring LLVM"
LLVM_TARGETS="--enable-targets=x86,x86_64"
LLVM_BUILD="--build=${CFG_HOST_TRIPLE}"
LLVM_HOST="--host=${CFG_HOST_TRIPLE}"
LLVM_TARGET="--target=${CFG_HOST_TRIPLE}"
LLVM_OPTS="--enable-optimized --disable-docs"
LLVM_CXX_32="g++ -m32"
LLVM_CC_32="gcc -m32"
LLVM_CFLAGS_32="-m32"
LLVM_CXXFLAGS_32="-m32"
LLVM_LDFLAGS_32="-m32"
# FIXME: Need to change flags for x64
LLVM_CXX=$LLVM_CXX_32
LLVM_CC=$LLVM_CC_32
LLVM_CFLAGS=$LLVM_CFLAGS_32
LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
LLVM_LDFLAGS=$LLVM_LDFLAGS_32
CXX=$LLVM_CXX
CC=$LLVM_CC
CFLAGS=$LLVM_CFLAGS
CXXFLAGS=$LLVM_CXXFLAGS
LDFLAGS=$LLVM_LDFLAGS
LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD $LLVM_HOST $LLVM_TARGET"
msg "configuring LLVM with:"
msg "$LLVM_FLAGS"
export CXX
export CC
export CFLAGS
export CXXFLAGS
export LDFLAGS
cd $CFG_LLVM_BUILD_DIR
# FIXME: This won't work if CFG_SRC_DIR is absolute
${CFG_BUILD_DIR}/${CFG_LLVM_SRC_DIR}/configure $LLVM_FLAGS
cd $CFG_BUILD_DIR
else
# The user is using their own LLVM
CFG_LLVM_INST_DIR=$CFG_LLVM_ROOT
fi
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putvar CFG_LLVM_SRC_DIR
putvar CFG_LLVM_BUILD_DIR
putvar CFG_LLVM_INST_DIR
# Munge any paths that appear in config.mk back to posix-y
perl -i.bak -p -e 's@ ([a-zA-Z]):[/\\]@ /\1/@go;' \
-e 's@\\@/@go;' config.mk
rm -f config.mk.bak
copy ${CFG_SRC_DIR}Makefile.in ./Makefile
step_msg "complete"