Add missing dependency in gnome.mkenums test.

test cases/frameworks/7 gnome/mkenums/meson.build

@@ -23,17 +23,18 @@ test('enum test 1', enumexe1)
 
 # Generate both header and source via template individually and overriding.
 
-enums_c2 = gnome.mkenums('abc2',
+enums_h2 = gnome.mkenums('abc2',
   sources : 'meson-sample.h',
-  c_template : 'enums2.c.in',
-  ftail : '/* trailing source file info */',
+  h_template : 'enums2.h.in',
+  ftail : '/* trailing header file info */',
   install_header : true,
   install_dir : get_option('includedir'))
 
-enums_h2 = gnome.mkenums('abc2',
+enums_c2 = gnome.mkenums('abc2',
   sources : 'meson-sample.h',
-  h_template : 'enums2.h.in',
-  ftail : '/* trailing header file info */',
+  depends : enums_h2,
+  c_template : 'enums2.c.in',
+  ftail : '/* trailing source file info */',
   install_header : true,
   install_dir : get_option('includedir'))