diff --git a/glm/detail/setup.hpp b/glm/detail/setup.hpp
index 9a044e1c..2478c3ef 100644
--- a/glm/detail/setup.hpp
+++ b/glm/detail/setup.hpp
@@ -579,25 +579,20 @@
 #		endif
 #	elif GLM_COMPILER & GLM_COMPILER_INTEL
 #		ifdef _MSC_EXTENSIONS
+#			define GLM_MSC_EXT GLM_LANG_CXXMS_FLAG
+#		else
+#			define GLM_MSC_EXT
+#		endif 
+#		if __INTEL_CXX11_MODE__
 #			if __cplusplus >= 201402L
 #				define GLM_LANG (GLM_LANG_CXX14 | GLM_LANG_CXXMS_FLAG)
 #			elif __cplusplus >= 201103L
 #				define GLM_LANG (GLM_LANG_CXX11 | GLM_LANG_CXXMS_FLAG)
-#			elif GLM_COMPILER >= GLM_COMPILER_INTEL13
-#				define GLM_LANG (GLM_LANG_CXX0X | GLM_LANG_CXXMS_FLAG)
-#			elif __cplusplus >= 199711L
-#				define GLM_LANG (GLM_LANG_CXX98 | GLM_LANG_CXXMS_FLAG)
 #			else
-#				define GLM_LANG (GLM_LANG_CXX | GLM_LANG_CXXMS_FLAG)
+#				define GLM_LANG (GLM_LANG_CXX0X | GLM_LANG_CXXMS_FLAG)
 #			endif
 #		else
-#			if __cplusplus >= 201402L
-#				define GLM_LANG (GLM_LANG_CXX14 | GLM_LANG_CXXMS_FLAG)
-#			elif __cplusplus >= 201103L
-#				define GLM_LANG (GLM_LANG_CXX11 | GLM_LANG_CXXMS_FLAG)
-#			elif GLM_COMPILER >= GLM_COMPILER_INTEL13
-#				define GLM_LANG (GLM_LANG_CXX0X | GLM_LANG_CXXMS_FLAG)
-#			elif __cplusplus >= 199711L
+#			if __cplusplus >= 199711L
 #				define GLM_LANG (GLM_LANG_CXX98 | GLM_LANG_CXXMS_FLAG)
 #			else
 #				define GLM_LANG (GLM_LANG_CXX | GLM_LANG_CXXMS_FLAG)
@@ -669,7 +664,7 @@
 #	define GLM_HAS_CXX11_STL ((GLM_LANG & GLM_LANG_CXX0X_FLAG) && \
 		((GLM_COMPILER & GLM_COMPILER_GCC) && (GLM_COMPILER >= GLM_COMPILER_GCC48)) || \
 		((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)) || \
-		((GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL15)))
+		((GLM_PLATFORM != GLM_PLATFORM_WINDOWS) && (GLM_COMPILER & GLM_COMPILER_INTEL) && (GLM_COMPILER >= GLM_COMPILER_INTEL15)))
 #endif
 
 // N1720