Fixed build system error

appveyor.yml

@@ -2,6 +2,6 @@ before_build:
 - cmake -DGLM_TEST_ENABLE=ON -DGLM_TEST_ENABLE_CXX_98=ON .
 
 build_script:
-  - cmake --build .
-  - ctest
+- cmake --build .
+- ctest
 

test/gtc/gtc_noise.cpp

@@ -1,5 +1,7 @@
 #define GLM_ENABLE_EXPERIMENTAL
 #include <glm/gtc/noise.hpp>
+
+#if GLM_LANG & GLM_LANG_CXX11_FLAG
 #include <gli/gli.hpp>
 
 int test_simplex()
@@ -149,13 +151,17 @@ int test_perlin_pedioric()
 	return 0;
 }
 
+#endif//GLM_LANG & GLM_LANG_CXX11_FLAG
+
 int main()
 {
 	int Error = 0;
 
+#	if GLM_LANG & GLM_LANG_CXX11_FLAG
 		Error += test_simplex();
 		Error += test_perlin();
 		Error += test_perlin_pedioric();
+#	endif
 
 	return Error;
 }