gitweb: warn if feature cannot be overridden.

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 10e803a97fa411ad014fbe476e55ec83d2e9f6b6..0ff6f7c1e4c1f7bd7f9df42eb53c2efb8cb21759 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -116,6 +116,10 @@ sub gitweb_check_feature {
                $feature{$name}{'override'},
                @{$feature{$name}{'default'}});
        if (!$override) { return @defaults; }
+       if (!defined $sub) {
+               warn "feature $name is not overrideable";
+               return @defaults;
+       }
        return $sub->(@defaults);
 }