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-rw-r--r--libguile/gc-mark.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/libguile/gc-mark.c b/libguile/gc-mark.c
index 994d3aa88..10f1522e0 100644
--- a/libguile/gc-mark.c
+++ b/libguile/gc-mark.c
@@ -281,6 +281,12 @@ scm_gc_mark_dependencies (SCM p)
break;
case scm_tc7_number:
+ if (SCM_TYP16 (ptr) == scm_tc16_fraction)
+ {
+ scm_gc_mark (SCM_CELL_OBJECT_1 (ptr));
+ ptr = SCM_CELL_OBJECT_2 (ptr);
+ goto gc_mark_loop;
+ }
break;
case scm_tc7_wvect: