css: Silence a clang warning

Clang complains that this check can never be true. Since this
is a argument range check which we do to catch bad input,
convince clang to not complain instead of taking it out.

diff --git a/gtk/gtkcssenumvalue.c b/gtk/gtkcssenumvalue.c
index 1e105f6b90a32f16f394f4d5ba633fbfdc0161f1..add4af3d19e8138f534eae956b0c7a9520391109 100644 (file)
--- a/gtk/gtkcssenumvalue.c
+++ b/gtk/gtkcssenumvalue.c
@@ -333,7 +333,7 @@ static GtkCssValue font_variant_values[] = {
 GtkCssValue *
 _gtk_css_font_variant_value_new (PangoVariant font_variant)
 {
-  g_return_val_if_fail (font_variant < G_N_ELEMENTS (font_variant_values), NULL);
+  g_return_val_if_fail ((gint)font_variant < G_N_ELEMENTS (font_variant_values), NULL);
 
   return _gtk_css_value_ref (&font_variant_values[font_variant]);
 }