https://llvm.org/bugs/show_bug.cgi?id=26621
Bug ID: 26621
Summary: libcxxabi cannot find /share/llvm/cmake (llvm install
creates no share/llvm dir)
Product: Build scripts
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: cmake
Assignee: unassignedb...@nondot.org
Reporter: gonzalob...@gmail.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
After compiling and installing llvm trunk from source my share/ folder
contains:
/share/clang
/share/man
/share/scan-build
/share/scan-view
However when compiling libcxxabi from source I get the following cmake error:
-- Found LLVM_CONFIG as bin/llvm-config
CMake Error at CMakeLists.txt:63 (message):
Not found: share/llvm/cmake
There is no llvm folder in share/ after installing LLVM but libcxxabi tries to
find one.
In Appendix A I show how I installed llvm in MacOS X 10.11.2 from source.
In Appendix B I show how I am trying to install libcxx, libcxxabi, and a
msan-libcxx. The error happens in the first step (when trying to bootstrap
libcxxabi with the header files of a new libcxx_.
APPENDIX A: I am on MacOS X and installed llvm as follows:
#!/bin/bash
echo "[INSTALL]: LLVM"
export POOL_DIR=${POOL:?"Need to set POOL to a non-empty path"}
export POOL_JOBS_=${POOL_JOBS:?"Need to set POOL to number > 0"}
export SRC_BASE=${POOL_DIR}/src
export BUILD_BASE=${POOL_DIR}/build
export PREFIX=${POOL_DIR}
export LLVM_SRC=${SRC_BASE}/llvm
export POLLY_SRC=${LLVM_SRC}/tools/polly
export CLANG_SRC=${LLVM_SRC}/tools/clang
export CLANG_TOOLS_SRC=${LLVM_SRC}/tools/clang/tools
export CLANG_TOOLS_EXTRA_SRC=${CLANG_TOOLS_SRC}/extra
export COMPILER_RT_SRC=${LLVM_SRC}/projects/compiler-rt
export LLDB_SRC=${LLVM_SRC}/tools/lldb
export CLOOG_SRC=${SRC_BASE}/cloog
export CLOOG_INSTALL=${BUILD_BASE}/cloog
export LLVM_BUILD=${BUILD_BASE}/llvm
cd ${POOL_DIR}
mkdir ${SRC_BASE}
mkdir ${BUILD_BASE}
rm -rf ${LLVM_SRC}
#svn co http://llvm.org/svn/llvm-project/llvm/trunk ${LLVM_SRC} -q
#svn co http://llvm.org/svn/llvm-project/cfe/trunk ${CLANG_SRC} -q
#svn co http://llvm.org/svn/llvm-project/clang-tools-extra/trunk
${CLANG_TOOLS_EXTRA_SRC} -q
#svn co http://llvm.org/svn/llvm-project/compiler-rt/trunk ${COMPILER_RT_SRC}
-q
# TODO: polly
git clone --depth 1 https://github.com/llvm-mirror/llvm.git ${LLVM_SRC}
git clone --depth 1 https://github.com/llvm-mirror/clang.git ${CLANG_SRC}
git clone --depth 1 https://github.com/llvm-mirror/clang-tools-extra.git
${CLANG_TOOLS_EXTRA_SRC}
git clone --depth 1 https://github.com/llvm-mirror/compiler-rt.git
${COMPILER_RT_SRC}
git clone --depth 1 https://github.com/llvm-mirror/polly.git ${POLLY_SRC}
rm -rf ${LLVM_BUILD}
mkdir ${LLVM_BUILD}
cd ${LLVM_BUILD}
# The first time using the script requires a C and C++ compiler
# CC=clang
# CXX=clang++
cmake ${LLVM_SRC} -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=${PREFIX}
-DLLVM_TARGETS_TO_BUILD="X86" -DLINK_POLLY_INTO_TOOLS:Bool=ON
make -j $POOL_JOBS
make install
cd ${PREFIX}
echo "[DONE]: LLVM installed!"
APPENDIX B: This is how I am trying to bootstrap a new libcxx:
#!/bin/bash
echo "[INSTALL]: LIBCXX"
export POOL_DIR=${POOL:?"Need to set POOL to a non-empty path"}
export POOL_JOBS_=${POOL_JOBS:?"Need to set POOL to number > 0"}
export SRC_BASE=${POOL_DIR}/src
export BUILD_BASE=${POOL_DIR}/build
export PREFIX=${POOL_DIR}
export MSAN_PREFIX=${POOL_DIR}/msan
export LLVM_LIT=${SRC_BASE}/llvm/utils/lit/lit.py
export LLVM_PATH=${SRC_BASE}/llvm
export LIBCXX_SRC=${SRC_BASE}/llvm/projects/libcxx
export LIBCXX_BUILD=${BUILD_BASE}/libcxx
export LIBCXX_MSAN_BUILD=${BUILD_BASE}/libcxx_msan
export LIBCXXABI_SRC=${SRC_BASE}/llvm/projects/libcxxabi
export LIBCXXABI_BUILD=${BUILD_BASE}/libcxxabi
export LIBCXXABI_MSAN_BUILD=${BUILD_BASE}/libcxxabi_msan
export CXX=${POOL_DIR}/bin/clang++
export CC=${POOL_DIR}/bin/clang
mkdir ${SRC_BASE}
mkdir ${BUILD_BASE}
rm -rf ${LIBCXX_SRC}
rm -rf ${LIBCXXABI_SRC}
#svn co http://llvm.org/svn/llvm-project/libcxx/trunk ${LIBCXX_SRC} -q
#svn co http://llvm.org/svn/llvm-project/libcxxabi/trunk ${LIBCXXABI_SRC} -q
git clone --depth 1 https://github.com/llvm-mirror/libcxx.git ${LIBCXX_SRC}
git clone --depth 1 https://github.com/llvm-mirror/libcxxabi.git
${LIBCXXABI_SRC}
rm -rf ${LIBCXX_BUILD}
mkdir ${LIBCXX_BUILD}
rm -rf ${LIBCXXABI_BUILD}
mkdir ${LIBCXXABI_BUILD}
# Step 1: build libcxxabi with new libcxx headers
cd ${LIBCXXABI_BUILD}
cmake ${LIBCXXABI_SRC} -DLIBCXXABI_LIBCXX_INCLUDES=$LIBCXX_SRC/include
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_INSTALL_PREFIX=${PREFIX} -DLLVM_CONFIG=${PREFIX}/bin/llvm-config
make -j $POOL_JOBS
make install
export LIBCXXABI_PATH=$POOL_DIR/lib
export LD_LIBRARY_PATH=$LIBCXXABI_PATH:$LD_LIBRARY_PATH
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