diff --git a/src/configure.in b/src/configure.in
index 8fff84f0699a06084678efadd3041eda4ad776de..159d1525fe0de50f069cfa4cd17987c3b440aa59 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -1,4 +1,4 @@
-AC_REVISION("$Id: configure.in,v 1.182 1998/05/06 06:03:09 hubbe Exp $")
+AC_REVISION("$Id: configure.in,v 1.183 1998/05/15 18:46:12 grubba Exp $")
 AC_INIT(interpret.c)
 AC_CONFIG_HEADER(machine.h)
 
@@ -980,6 +980,7 @@ AC_CHECK_FUNCS( \
  times \
  vfprintf \
  vsprintf \
+ vsnprintf \
  wait3 \
  wait4 \
  waitpid \