diff --git a/Utilities/cmlibarchive/CMakeLists.txt b/Utilities/cmlibarchive/CMakeLists.txt
index a24bb5d96..d0460eca0 100644
--- a/Utilities/cmlibarchive/CMakeLists.txt
+++ b/Utilities/cmlibarchive/CMakeLists.txt
@@ -49,6 +49,8 @@ SET(SOVERSION "${INTERFACE_VERSION}")
 IF("${CMAKE_C_COMPILER_ID}" MATCHES
     "^(GNU|Clang|XL|VisualAge|SunPro|MIPSpro|HP|Intel)$")
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w")
+ELSEIF("${CMAKE_C_COMPILER_ID}" MATCHES "^(PathScale)$")
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -woffall")
 ELSEIF(BORLAND)
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
 ENDIF()