Test: no inheriting constructors on GCC 4.7.

src/Magnum/Test/AbstractShaderProgramTest.cpp

@@ -41,8 +41,12 @@ AbstractShaderProgramTest::AbstractShaderProgramTest() {
 
 void AbstractShaderProgramTest::constructNoCreate() {
     {
-        struct: AbstractShaderProgram {
+        struct Shader: AbstractShaderProgram {
+            #ifndef CORRADE_GCC47_COMPATIBILITY
             using AbstractShaderProgram::AbstractShaderProgram;
+            #else
+            explicit Shader(NoCreateT) noexcept: AbstractShaderProgram{NoCreate} {}
+            #endif
         } shader{NoCreate};
 
         CORRADE_COMPARE(shader.id(), 0);