diff --git a/configure1.in b/configure1.in
index 9624fad4f01..cb8154df3ae 100755
--- a/configure1.in
+++ b/configure1.in
@@ -950,7 +950,7 @@ AC_RETSIGTYPE
 
 dnl checks for functions
 AC_ALLOCA
-AC_HAVE_FUNCS(gettimeofday gethostname dup2 rename)
+AC_HAVE_FUNCS(gettimeofday gethostname dup2 rename closedir)
 
 dnl checks for structure members
 AC_STRUCT_TM