codegen: Include "glib.h" for g_return_*() usage

Fixes https://gitlab.gnome.org/GNOME/vala/issues/940

diff --git a/codegen/valagtypemodule.vala b/codegen/valagtypemodule.vala
index d4e0f3eece2791309a5f1c74babd054194aa13ca..dbdc7caf3936c8fcdd521c328bb872878fb34d68 100644 (file)
--- a/codegen/valagtypemodule.vala
+++ b/codegen/valagtypemodule.vala
@@ -2477,6 +2477,9 @@ public class Vala.GTypeModule : GErrorModule {
                        ccheck.add_argument (cnonnull);
                }
 
+               // g_return_* needs glib.h
+               cfile.add_include ("glib.h");
+
                var cm = method_node as CreationMethod;
                if (cm != null && cm.parent_symbol is ObjectTypeSymbol) {
                        ccheck.call = new CCodeIdentifier ("g_return_val_if_fail");