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[CMake] Add compatibility and current versioning to libLTO to match autoconf support.

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This also adds LLVM_LTO_VERSION_OFFSET to support functional equivalence to autoconf.

llvm-svn: 250245
This commit is contained in:
Chris Bieneman 2015-10-13 22:54:29 +00:00
parent a190c153d6
commit 4b5a0d9544
1 changed files with 10 additions and 0 deletions
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10
tools/lto/CMakeLists.txt
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@ -19,3 +19,13 @@ add_llvm_library(LTO SHARED ${SOURCES})
install(FILES ${LLVM_MAIN_INCLUDE_DIR}/llvm-c/lto.h
DESTINATION include/llvm-c)
if (APPLE)
set(LTO_VERSION ${LLVM_VERSION_MAJOR})
if(LLVM_LTO_VERSION_OFFSET)
math(EXPR LTO_VERSION "${LLVM_VERSION_MAJOR} + ${LLVM_LTO_VERSION_OFFSET}")
endif()
set_property(TARGET LTO APPEND_STRING PROPERTY
LINK_FLAGS
" -compatibility_version 1 -current_version ${LTO_VERSION}.${LLVM_VERSION_MINOR}")
endif()