GCC 4.4 compatibility: no std::is_constructible type trait.

src/Magnum/Test/TransformFeedbackGLTest.cpp

@@ -77,11 +77,15 @@ void TransformFeedbackGLTest::construct() {
 }
 
 void TransformFeedbackGLTest::constructCopy() {
+    #ifndef CORRADE_GCC44_COMPATIBILITY
     CORRADE_VERIFY(!(std::is_constructible<TransformFeedback, const TransformFeedback&>::value));
     /* GCC 4.6 doesn't have std::is_assignable */
     #ifndef CORRADE_GCC46_COMPATIBILITY
     CORRADE_VERIFY(!(std::is_assignable<TransformFeedback, const TransformFeedback&>{}));
     #endif
+    #else
+    CORRADE_SKIP("Type traits needed to test this are not available on GCC 4.4.");
+    #endif
 }
 
 void TransformFeedbackGLTest::constructMove() {