Issue 4997/6: Use Preinit for font metrics

[lilypond.git] / lily / modified-font-metric.cc

diff --git a/lily/modified-font-metric.cc b/lily/modified-font-metric.cc
index d1c80b66f056683612aa18259428039e27a27cd1..a93b3f4d97a4a415acc8a469453c1b7baefc9d73 100644 (file)
--- a/lily/modified-font-metric.cc
+++ b/lily/modified-font-metric.cc
@@ -26,6 +26,11 @@ using namespace std;
 #include "main.hh"
 #include "program-option.hh"
 
+void Modified_font_metric::pre_init ()
+{
+  orig_ = 0;
+}
+
 Modified_font_metric::Modified_font_metric (Font_metric *fm,
                                             Real magnification)
 {
@@ -102,6 +107,8 @@ Modified_font_metric::index_to_charcode (vsize i) const
 void
 Modified_font_metric::derived_mark () const
 {
+  if (orig_)
+    scm_gc_mark (orig_->self_scm ());
 }
 
 Stencil