1 files changed, 2 insertions, 1 deletions

diff --git a/src/vm-limit.c b/src/vm-limit.c
index c3bd98d67de..711b4a74b18 100644
--- a/src/vm-limit.c
+++ b/src/vm-limit.c
@@ -49,7 +49,8 @@ static void (*warn_function) ();
 static void
 check_memory_limits ()
 {
-  POINTER result;
+  extern POINTER (*__morecore) ();
+
   register POINTER cp;
   int five_percent;
   int data_size;