Index: cmake/config-ix.cmake
===================================================================
--- cmake/config-ix.cmake
+++ cmake/config-ix.cmake
@@ -415,7 +415,8 @@
 
 if (SANITIZER_COMMON_SUPPORTED_ARCH AND NOT LLVM_USE_SANITIZER AND
     (OS_NAME MATCHES "Android|Darwin|Linux|FreeBSD" OR
-    (OS_NAME MATCHES "Windows" AND MSVC)))
+    (OS_NAME MATCHES "Windows" AND MSVC))
+    AND NOT (OS_NAME STREQUAL "kFreeBSD"))
   set(COMPILER_RT_HAS_SANITIZER_COMMON TRUE)
 else()
   set(COMPILER_RT_HAS_SANITIZER_COMMON FALSE)