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authorRuslan Baratov <ruslan_baratov@yahoo.com>2017-04-28 14:13:56 (GMT)
committerRuslan Baratov <ruslan_baratov@yahoo.com>2017-04-28 14:13:56 (GMT)
commit7d057b2738e229192ae5afe71d50354681813235 (patch)
treebebcaf0fcca709a89a4d6e9dde390ef7003cef38 /Modules/Compiler/Clang-FindBinUtils.cmake
parentd828d0eb084cf094119d2b47dae0053267aba138 (diff)
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Clang IPO (LTO) support
Diffstat (limited to 'Modules/Compiler/Clang-FindBinUtils.cmake')
-rw-r--r--Modules/Compiler/Clang-FindBinUtils.cmake25
1 files changed, 25 insertions, 0 deletions
diff --git a/Modules/Compiler/Clang-FindBinUtils.cmake b/Modules/Compiler/Clang-FindBinUtils.cmake
new file mode 100644
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--- /dev/null
+++ b/Modules/Compiler/Clang-FindBinUtils.cmake
@@ -0,0 +1,25 @@
+if(NOT DEFINED _CMAKE_PROCESSING_LANGUAGE OR _CMAKE_PROCESSING_LANGUAGE STREQUAL "")
+ message(FATAL_ERROR "Internal error: _CMAKE_PROCESSING_LANGUAGE is not set")
+endif()
+
+# Try to find tools in the same directory as Clang itself
+get_filename_component(__clang_hint_1 "${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER}" REALPATH)
+get_filename_component(__clang_hint_1 "${__clang_hint_1}" DIRECTORY)
+
+get_filename_component(__clang_hint_2 "${CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER}" DIRECTORY)
+
+set(__clang_hints ${__clang_hint_1} ${__clang_hint_2})
+
+# http://manpages.ubuntu.com/manpages/precise/en/man1/llvm-ar.1.html
+find_program(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_AR NAMES
+ "${_CMAKE_TOOLCHAIN_PREFIX}llvm-ar"
+ HINTS ${__clang_hints}
+ DOC "LLVM archiver"
+)
+
+# http://manpages.ubuntu.com/manpages/precise/en/man1/llvm-ranlib.1.html
+find_program(CMAKE_${_CMAKE_PROCESSING_LANGUAGE}_COMPILER_RANLIB NAMES
+ "${_CMAKE_TOOLCHAIN_PREFIX}llvm-ranlib"
+ HINTS ${__clang_hints}
+ DOC "Generate index for LLVM archive"
+)