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[CMake] Support overriding CLANG_VERSION_*

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As with how we handle LLVM_VERSION_* variables we should support
overriding clang version variables.

llvm-svn: 282003
This commit is contained in:
Chris Bieneman 2016-09-20 19:09:21 +00:00
parent a754c47ac5
commit ebfc680685
1 changed files with 10 additions and 4 deletions
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8
clang/CMakeLists.txt
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@ -261,10 +261,16 @@ if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
endif()
endif()
# Compute the Clang version from the LLVM version.
# If CLANG_VERSION_* is specified, use it, if not use LLVM_VERSION_*.
if(NOT DEFINED CLANG_VERSION_MAJOR)
set(CLANG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
endif()
if(NOT DEFINED CLANG_VERSION_MINOR)
set(CLANG_VERSION_MINOR ${LLVM_VERSION_MINOR})
endif()
if(NOT DEFINED CLANG_VERSION_PATCHLEVEL)
set(CLANG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
endif()
# Unlike PACKAGE_VERSION, CLANG_VERSION does not include LLVM_VERSION_SUFFIX.
set(CLANG_VERSION "${CLANG_VERSION_MAJOR}.${CLANG_VERSION_MINOR}.${CLANG_VERSION_PATCHLEVEL}")
message(STATUS "Clang version: ${CLANG_VERSION}")