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| author | Hans Wennborg <hans@hanshq.net> | 2014-11-13 00:35:23 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2014-11-13 00:35:23 +0000 |
| commit | 94a9396ff7f0e33ac112038deec844d6fc94d0e8 (patch) | |
| tree | 6656589e39597977d72e33308fdc474d84a0389e /CMakeLists.txt | |
| parent | 44575a006feadea04b2a5b6f49a32f73ebaa68a1 (diff) | |
CMake: Set HOST_LINK_VERSION on Darwin (PR21268)
The Autoconf build already does this, but it was never ported to
CMake. The host linker version affects the flags that Clang pass
to the linker, notably whether it passes -demangle or not.
http://reviews.llvm.org/D6239
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@221844 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index fbff5add48..fe0d5f2621 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -253,6 +253,26 @@ if (LLVM_COMPILER_IS_GCC_COMPATIBLE) endif() endif () +# Determine HOST_LINK_VERSION on Darwin. +set(HOST_LINK_VERSION) +if (APPLE) + set(LD_V_OUTPUT) + execute_process( + COMMAND sh -c "${CMAKE_LINKER} -v 2>&1 | head -1" + RESULT_VARIABLE HAD_ERROR + OUTPUT_VARIABLE LD_V_OUTPUT + ) + if (NOT HAD_ERROR) + if ("${LD_V_OUTPUT}" MATCHES ".*ld64.*") + string(REGEX REPLACE ".*ld64-([0-9.]*).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT}) + else() + string(REGEX REPLACE "[^0-9]*([0-9.]*).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT}) + endif() + else() + message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}") + endif() +endif() + configure_file( ${CLANG_SOURCE_DIR}/include/clang/Config/config.h.cmake ${CLANG_BINARY_DIR}/include/clang/Config/config.h) |