diff --git a/configure.in b/configure.in
index ccb5302a0..608f8d087 100644
--- a/configure.in
+++ b/configure.in
@@ -202,10 +202,15 @@ if test SOCKET_H = 0 -o IN_H = 0 ; then
 fi
 
 #--------------------------------------------------------------------
-# These functions needed by StdioStream.m
+# This function needed by StdioStream.m
 #--------------------------------------------------------------------
 AC_CHECK_FUNCS(vsprintf)
 
+#--------------------------------------------------------------------
+# This function needed by objc-malloc.c
+#--------------------------------------------------------------------
+AC_CHECK_FUNCS(valloc)
+
 #--------------------------------------------------------------------
 # These libraries needed by the check programs for distributed objects
 # on Solaris where the socket/network code isn't the regular place.  Yuck!