Index: cmake/config-ix.cmake
===================================================================
--- cmake/config-ix.cmake
+++ cmake/config-ix.cmake
@@ -457,7 +457,7 @@
 endif()
 
 if (COMPILER_RT_HAS_SANITIZER_COMMON AND TSAN_SUPPORTED_ARCH AND
-    OS_NAME MATCHES "Darwin|Linux|FreeBSD")
+    OS_NAME MATCHES "Darwin|Linux")
   set(COMPILER_RT_HAS_TSAN TRUE)
 else()
   set(COMPILER_RT_HAS_TSAN FALSE)