Add -fPIC option for GCC, and cleanup a bit.

src/nvtt/squish/CMakeLists.txt

@@ -1,13 +1,8 @@
 PROJECT(squish)
-ENABLE_TESTING()
 
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
 
 SET(SQUISH_SRCS
-#	alpha.cpp
-#	alpha.h
-#	clusterfit.cpp
-#	clusterfit.h
 	fastclusterfit.cpp
 	fastclusterfit.h
 	weightedclusterfit.cpp
@@ -21,32 +16,13 @@ SET(SQUISH_SRCS
 	config.h
 	maths.cpp
 	maths.h
-#	rangefit.cpp
-#	rangefit.h
-#	singlecolourfit.cpp
-#	singlecolourfit.h
-#	singlecolourlookup.inl
-#	squish.cpp
-#	squish.h
 	simd.h
 	simd_sse.h
 	simd_ve.h)
 
 ADD_LIBRARY(squish STATIC ${SQUISH_SRCS})
 
-# libpng
-#FIND_PACKAGE(PNG)
-
-#IF(PNG_FOUND)
-#	INCLUDE_DIRECTORIES(${PNG_INCLUDE_DIR})
-#	ADD_EXECUTABLE(squishpng extra/squishpng.cpp)
-#	TARGET_LINK_LIBRARIES(squishpng squish ${PNG_LIBRARY})
-#ENDIF(PNG_FOUND)
-
-##ADD_EXECUTABLE(squishgen extra/squishgen.cpp)
-
-#ADD_EXECUTABLE(squishtest extra/squishtest.cpp)
-#TARGET_LINK_LIBRARIES(squishtest squish)
-
-#ADD_TEST(SQUISHTEST squishtest)
+IF(CMAKE_COMPILER_IS_GNUCXX)
+	SET_TARGET_PROPERTIES(squish PROPERTIES COMPILE_FLAGS -fPIC)
+ENDIF(CMAKE_COMPILER_IS_GNUCXX)