Warning suppression change

Earlier gcc (4.7) will warn about unknown warning pragmas!
-Wpedantic suppression is only available in 4.8 and later

Examples/test-suite/enum_forward.i

@@ -8,7 +8,7 @@ enum ForwardEnum2 { CCC, DDD };
 %}
 
 %inline %{
-#if defined(__GNUC__)
+#if __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
 /* ISO C forbids forward references to ‘enum’ types [-Werror=pedantic] */
 #pragma GCC diagnostic ignored "-Wpedantic"
 #endif

Examples/test-suite/enum_macro.i

@@ -2,7 +2,7 @@
 
 %inline %{
 
-#if defined(__GNUC__)
+#if __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
 /* comma at end of enumerator list [-Werror=pedantic] */
 #pragma GCC diagnostic ignored "-Wpedantic"
 #endif

Examples/test-suite/li_std_auto_ptr.i

@@ -1,7 +1,7 @@
 %module li_std_auto_ptr
 
 %{
-#if defined(__GNUC__)
+#if __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations" // auto_ptr deprecation
 #endif
 %}

Examples/test-suite/nested_class.i

@@ -50,7 +50,7 @@
 
 %inline %{
 
-#if defined(__GNUC__)
+#if __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
 /* ISO C++ prohibits anonymous structs [-Werror=pedantic] */
 #pragma GCC diagnostic ignored "-Wpedantic"
 #endif