mgorny created this revision. mgorny added reviewers: mclow.lists, beanz, phosek, EricWF. mgorny added a subscriber: cfe-commits.
Make LLVM_CMAKE_PATH a cache variable in order to support user overrides. This is useful when building multiple multilib variants of libunwind using CMake files from a single-ABI install of LLVM, e.g. when LLVM_LIBDIR_SUFFIX == "32" but CMake files are to be found in /usr/lib64/cmake/llvm. Since libunwind is not using any of the LLVM build configuration variables (just generic macros), it is fine to use CMake files from a different ABI. https://reviews.llvm.org/D28295 Files: CMakeLists.txt Index: CMakeLists.txt =================================================================== --- CMakeLists.txt +++ CMakeLists.txt @@ -43,7 +43,8 @@ set(LLVM_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include") set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree") set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree") - set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm") + set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm" + CACHE PATH "Path to LLVM CMake modules") set(LLVM_LIT_PATH "${LLVM_PATH}/utils/lit/lit.py") else() message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined. "
Index: CMakeLists.txt =================================================================== --- CMakeLists.txt +++ CMakeLists.txt @@ -43,7 +43,8 @@ set(LLVM_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include") set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree") set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree") - set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm") + set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm" + CACHE PATH "Path to LLVM CMake modules") set(LLVM_LIT_PATH "${LLVM_PATH}/utils/lit/lit.py") else() message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined. "
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