diff options
-rw-r--r-- | runtime/CMakeLists.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/runtime/CMakeLists.txt b/runtime/CMakeLists.txt index 26d6c1233c..99298e11b1 100644 --- a/runtime/CMakeLists.txt +++ b/runtime/CMakeLists.txt @@ -27,7 +27,10 @@ set(COMPILER_RT_SRC_ROOT ${LLVM_MAIN_SRC_DIR}/projects/compiler-rt) # 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 ${LLVM_EXTERNAL_COMPILER_RT_SOURCE_DIR}) + # We don't want to set it if LLVM_EXTERNAL_COMPILER_RT_SOURCE_DIR is "" + if(${LLVM_EXTERNAL_COMPILER_RT_SOURCE_DIR}) + set(COMPILER_RT_SRC_ROOT ${LLVM_EXTERNAL_COMPILER_RT_SOURCE_DIR}) + endif() endif() if(LLVM_BUILD_EXTERNAL_COMPILER_RT AND EXISTS ${COMPILER_RT_SRC_ROOT}/) |