Fixed build

CMakeLists.txt

@@ -53,7 +53,7 @@ if(("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang") OR ("${CMAKE_CXX_COMPILER_ID}"
 		set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LANGUAGE_STANDARD "c++98")
 		set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "libc++")
 		set(CMAKE_CXX_FLAGS "-std=c++98")
-		if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU"))
+		if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
 			# GLM is using GCC 64 bits integer extension
 			add_definitions(-Wno-long-long)
 		elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")