BUG: Need to add ANSI C flags for some platforms.

CMakeLists.txt

@@ -28,6 +28,10 @@ SET(KWSYS_NO_ANSI_STREAM_HEADERS ${CMAKE_NO_ANSI_STREAM_HEADERS})
 SET(KWSYS_NO_ANSI_STRING_STREAM ${CMAKE_NO_ANSI_STRING_STREAM})
 SET(KWSYS_NO_ANSI_FOR_SCOPE ${CMAKE_NO_ANSI_FOR_SCOPE})
 
+IF(CMAKE_ANSI_CFLAGS)
+  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${CMAKE_ANSI_CFLAGS}")
+ENDIF(CMAKE_ANSI_CFLAGS)
+
 SET(CLASSES Directory RegularExpression SystemTools)
 SET(H Process)
 SET(HXX Configure)