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Fix CMake configuration errors on OS X 

llvm-svn: 296954
This commit is contained in:
Eric Fiselier 2017-03-04 02:15:37 +00:00
parent 054c35c0c1
commit 6f8d62ddee
1 changed files with 6 additions and 3 deletions
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9
libcxxabi/CMakeLists.txt
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@ -416,13 +416,16 @@ if (LIBCXXABI_HAS_EXTERNAL_THREAD_API)
endif()
endif()
set(LIBCXXABI_HAS_UNDEFINED_SYMBOLS ((NOT LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS)
OR (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY AND LIBCXXABI_ENABLE_SHARED)))
set(LIBCXXABI_HAS_UNDEFINED_SYMBOLS OFF)
if ((NOT LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS)
OR (LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY AND LIBCXXABI_ENABLE_SHARED))
set(LIBCXXABI_HAS_UNDEFINED_SYMBOLS ON)
endif()
if (LIBCXXABI_HAS_UNDEFINED_SYMBOLS)
# Need to allow unresolved symbols if this is to work with shared library builds
if (APPLE)
add_link_flags("-undefined dynamic_lookup")
list(APPEND LIBCXXABI_LINK_FLAGS "-undefined dynamic_lookup")
else()
# Relax this restriction from HandleLLVMOptions
string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")