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[cmake] Fallback to LLVM_EXTERNAL_COMPILER_RT_SOURCE_DIR if COMPILER_RT_SRC_ROOT doesn't exist.

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llvm-svn: 262334
This commit is contained in:
Filipe Cabecinhas 2016-03-01 14:08:13 +00:00
parent 0ddfde44ce
commit 03ca68d6a6
1 changed files with 7 additions and 0 deletions
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7
clang/runtime/CMakeLists.txt
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@ -23,6 +23,13 @@ function(get_ext_project_build_command out_var target)
endfunction()
set(COMPILER_RT_SRC_ROOT ${LLVM_MAIN_SRC_DIR}/projects/compiler-rt)
# Fallback to the external path, if the other one isn't available.
# This is the same behavior (try "internal", then check the LLVM_EXTERNAL_...
# variable) as in add_llvm_external_project
if(NOT EXISTS ${COMPILER_RT_SRC_ROOT})
set(COMPILER_RT_SRC_ROOT ${LLVM_EXTERNAL_COMPILER_RT_SOURCE_DIR})
endif()
if(LLVM_BUILD_EXTERNAL_COMPILER_RT AND EXISTS ${COMPILER_RT_SRC_ROOT}/)
if(CMAKE_VERSION VERSION_GREATER 3.3.20150708)
set(cmake_3_4_USES_TERMINAL_OPTIONS