diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -6,7 +6,7 @@
 include(CheckSymbolExists)
 include(TestBigEndian)
 
-function(check_linker_flag flag out_var)
+function(compiler_rt_check_linker_flag flag out_var)
   cmake_push_check_state()
   set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${flag}")
   check_cxx_compiler_flag("" ${out_var})
@@ -156,11 +156,11 @@
 check_library_exists(stdc++ __cxa_throw "" COMPILER_RT_HAS_LIBSTDCXX)
 
 # Linker flags.
-check_linker_flag("-Wl,-z,text" COMPILER_RT_HAS_Z_TEXT)
-check_linker_flag("-fuse-ld=lld" COMPILER_RT_HAS_FUSE_LD_LLD_FLAG)
+compiler_rt_check_linker_flag("-Wl,-z,text" COMPILER_RT_HAS_Z_TEXT)
+compiler_rt_check_linker_flag("-fuse-ld=lld" COMPILER_RT_HAS_FUSE_LD_LLD_FLAG)
 
 set(VERS_COMPAT_OPTION "-Wl,-z,gnu-version-script-compat")
-check_linker_flag("${VERS_COMPAT_OPTION}" COMPILER_RT_HAS_GNU_VERSION_SCRIPT_COMPAT)
+compiler_rt_check_linker_flag("${VERS_COMPAT_OPTION}" COMPILER_RT_HAS_GNU_VERSION_SCRIPT_COMPAT)
 
 set(DUMMY_VERS ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/dummy.vers)
 file(WRITE ${DUMMY_VERS} "{};")
@@ -170,10 +170,10 @@
   # -z gnu-version-script-compat. 
   string(APPEND VERS_OPTION " ${VERS_COMPAT_OPTION}")
 endif()
-check_linker_flag("${VERS_OPTION}" COMPILER_RT_HAS_VERSION_SCRIPT)
+compiler_rt_check_linker_flag("${VERS_OPTION}" COMPILER_RT_HAS_VERSION_SCRIPT)
 
 if(ANDROID)
-  check_linker_flag("-Wl,-z,global" COMPILER_RT_HAS_Z_GLOBAL)
+  compiler_rt_check_linker_flag("-Wl,-z,global" COMPILER_RT_HAS_Z_GLOBAL)
   check_library_exists(log __android_log_write "" COMPILER_RT_HAS_LIBLOG)
 endif()
 
@@ -437,7 +437,7 @@
     -lc++
     -lc++abi)
 
-  check_linker_flag("-fapplication-extension" COMPILER_RT_HAS_APP_EXTENSION)
+  compiler_rt_check_linker_flag("-fapplication-extension" COMPILER_RT_HAS_APP_EXTENSION)
   if(COMPILER_RT_HAS_APP_EXTENSION)
     list(APPEND DARWIN_COMMON_LINK_FLAGS "-fapplication-extension")
   endif()