Index: src/src/nvtt/squish/CMakeLists.txt
===================================================================
--- src/src/nvtt/squish/CMakeLists.txt	(revision 13060)
+++ src/src/nvtt/squish/CMakeLists.txt	(working copy)
@@ -22,7 +22,11 @@
 
 ADD_LIBRARY(squish STATIC ${SQUISH_SRCS})
 
-IF(CMAKE_COMPILER_IS_GNUCXX)
+IF("${CMAKE_CXX_COMPILER}" MATCHES "clang(\\+\\+)?$" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+	SET(CMAKE_COMPILER_IS_CLANGXX 1)
+ENDIF()
+
+IF(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_CLANGXX)
 	SET_TARGET_PROPERTIES(squish PROPERTIES COMPILE_FLAGS -fPIC)
-ENDIF(CMAKE_COMPILER_IS_GNUCXX)
+ENDIF(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_COMPILER_IS_CLANGXX)