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add a clang build script
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Thomas Pöchtrager
parent
44d7d0d07a
commit
e8443ae7d3
11
README.md
11
README.md
@ -27,8 +27,15 @@ Then ensure you have the following installed on your Linux/BSD box:
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`Clang 3.2+`, `llvm-devel`, `automake`, `autogen`, `libtool`, `patch`,
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`libxml2-devel` (<=10.5 only), `uuid-devel`, `openssl-devel` and the `bash shell`.
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Hint 1: You can run 'sudo tools/get_dependencies.sh' to get these automatically.
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Hint 2: On Ubuntu 12.04 LTS you can use [llvm.org/apt](http://llvm.org/apt) to get a newer version of clang.
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\--
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You can run 'sudo tools/get\_dependencies.sh' to get these automatically.
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'[INSTALLPREFIX=...] ./build_clang.sh' can be used to build a recent clang version
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from source (requires gcc and g++).
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On debian like systems you can also use [llvm.org/apt](http://llvm.org/apt) to get a newer version of clang.
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But be careful, that repository is known to cause [troubles](https://github.com/tpoechtrager/osxcross/issues/16).
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\--
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Then run `./build.sh` to build the cross toolchain.
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(It will search 'tarballs' for your SDK and then build in its own directory.)
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174
build_clang.sh
Executable file
174
build_clang.sh
Executable file
@ -0,0 +1,174 @@
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#!/usr/bin/env bash
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pushd "${0%/*}" &>/dev/null
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DESC=clang
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USESYSTEMCOMPILER=1
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source tools/tools.sh
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if [ -z "$SKIP_GCC_CHECK" ]; then
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if [ $PLATFORM != "Darwin" -a "$PLATFORM" != "FreeBSD" ]; then
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which "g++${GCC_SUFFIX}" &>/dev/null && \
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{
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export CC="gcc${GCC_SUFFIX}"
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export CXX="g++${GCC_SUFFIX}"
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test="
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#define GCC_VERSION_AT_LEAST(major, minor, patch) \
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(defined(__GNUC__) && \
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(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) >= \
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(major * 10000 + minor * 100 + patch))
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#if !GCC_VERSION_AT_LEAST(4, 7, 0)
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not_gcc_47_or_later
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#endif"
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echo "$test" | $CXX -fsyntax-only -xc++ - &>/dev/null || \
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{
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echo "Your GCC installation is too old to build recent clang releases."
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echo "Building clang 3.4.2 instead."
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CLANG_VERSION=3.4
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CLANG_VERSION_PATCH=.2
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}
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} || \
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{
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echo "Can not detect GCC installation." 1>&2
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echo "You may want to try 'GCC_SUFFIX=<suffix> $0'" 1>&2
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echo "(i.e. GCC_SUFFIX=-4.7 $0)" 1>&2
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exit 1
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}
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fi
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fi
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source $BASE_DIR/tools/trap_exit.sh
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MIRROR="http://llvm.org"
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#MIRROR="http://archive.ubuntu.com"
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if [ -z "$CLANG_VERSION" ]; then
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CLANG_VERSION=3.5
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CLANG_VERSION_PATCH=.0
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fi
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if [[ $MIRROR == *ubuntu* ]] && [ $CLANG_VERSION_PATCH == .0 ]; then
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CLANG_VERSION_PATCH=
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fi
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CLANG_VERSION_MMP="${CLANG_VERSION}${CLANG_VERSION_PATCH}"
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if [ -z "$INSTALLPREFIX" ]; then
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INSTALLPREFIX="/usr/local"
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fi
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require wget
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function warn_if_installed()
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{
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which $1 &>/dev/null && \
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{
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echo ""
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echo "It is highly recommended to uninstall previous $2 versions first:"
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echo "-> $(which $1 2>/dev/null)"
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echo ""
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}
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}
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if [ $PLATFORM != "Darwin" -a "$PLATFORM" != "FreeBSD" ]; then
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warn_if_installed clang clang
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warn_if_installed llvm-config llvm
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fi
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echo "Building Clang/LLVM $CLANG_VERSION may take a long time."
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echo "Installation Prefix: $INSTALLPREFIX"
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read -p "Press enter to start building."
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echo ""
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pushd $OSXCROSS_BUILD_DIR &>/dev/null
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pushd $OSXCROSS_TARBALL_DIR &>/dev/null
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if [[ $MIRROR == *ubuntu* ]]; then
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LLVM_PKG="$MIRROR/ubuntu/pool/main/l/llvm-toolchain-${CLANG_VERSION}/"
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LLVM_PKG+="llvm-toolchain-${CLANG_VERSION}_${CLANG_VERSION_MMP}"
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LLVM_PKG+=".orig.tar.bz2"
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CLANG_PKG="$MIRROR/ubuntu/pool/main/l/llvm-toolchain-${CLANG_VERSION}/"
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CLANG_PKG+="llvm-toolchain-${CLANG_VERSION}_${CLANG_VERSION_MMP}"
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CLANG_PKG+=".orig-clang.tar.bz2"
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else
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if [ -z "$PKGCOMPRESSOR" ]; then
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PKGCOMPRESSOR="tar.xz"
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[ $CLANG_VERSION == "3.4" ] && PKGCOMPRESSOR="tar.gz"
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fi
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LLVM_PKG="$MIRROR/releases/${CLANG_VERSION_MMP}/"
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LLVM_PKG+="llvm-${CLANG_VERSION_MMP}.src.${PKGCOMPRESSOR}"
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CLANG_PKG="$MIRROR/releases/${CLANG_VERSION_MMP}/"
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CLANG_PKG+="cfe-${CLANG_VERSION_MMP}.src.${PKGCOMPRESSOR}"
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fi
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wget -c $LLVM_PKG
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wget -c $CLANG_PKG
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popd &>/dev/null
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echo "cleaning up ..."
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rm -rf llvm* 2>/dev/null
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extract "$OSXCROSS_TARBALL_DIR/$(basename $LLVM_PKG)" 2 0
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pushd llvm* &>/dev/null
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pushd tools &>/dev/null
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extract "$OSXCROSS_TARBALL_DIR/$(basename $CLANG_PKG)" 1
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[ -e clang* ] && mv clang* clang
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[ -e cfe* ] && mv cfe* clang
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popd &>/dev/null
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function build()
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{
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stage=$1
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mkdir -p $stage
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pushd $stage &>/dev/null
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../configure --prefix=$INSTALLPREFIX --enable-optimized --disable-assertions
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$MAKE $2 -j $JOBS VERBOSE=1
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popd &>/dev/null
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}
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if [ -n "$DISABLE_BOOTSTRAP" ]; then
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build build
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else
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CFLAGS="-O1" CXXFLAGS="-O1" \
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build build_stage1 clang-only
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export CC=$PWD/build_stage1/Release/bin/clang
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export CXX=$PWD/build_stage1/Release/bin/clang++
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if [ -z "$PORTABLE" ]; then
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export CFLAGS="-march=native"
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export CXXFLAGS="-march=native"
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fi
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build build_stage2
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if [ -n "$ENABLE_FULL_BOOTSTRAP" ]; then
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CC=$PWD/build_stage2/Release/bin/clang \
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CXX=$PWD/build_stage2/Release/bin/clang++ \
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build build_stage3
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fi
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fi
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echo ""
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echo "Done!"
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echo ""
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echo -n "cd into '$PWD/$stage' and type 'make install' to install "
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echo "clang/llvm to '$INSTALLPREFIX'"
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echo ""
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popd &>/dev/null # llvm
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popd &>/dev/null
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@ -18,8 +18,11 @@ function _exit()
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echo ""
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echo "exiting with abnormal exit code ($EC)"
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test -n "$OCDEBUG" || echo "run 'OCDEBUG=1 ./$SCRIPT' to enable debug messages"
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echo "removing stale locks..."
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remove_locks
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declare -f -F remove_locks &>/dev/null && \
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{
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echo "removing stale locks..."
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remove_locks
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}
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echo "if it is happening the first time, then just re-run the script"
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echo ""
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test $SCRIPT = "build.sh" && check_for_bug_1242300
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