diff --git a/configure.in b/configure.in
index bbcac87dd..c104b6bc6 100644
--- a/configure.in
+++ b/configure.in
@@ -403,7 +403,7 @@ if test "$enable_regex" = yes; then
    fi
 fi
 
-AC_REPLACE_FUNCS(inet_aton putenv strerror memmove)
+AC_REPLACE_FUNCS(inet_aton putenv strerror memmove mkstemp)
 
 # When testing for the presence of alloca, we need to add alloca.o
 # explicitly to LIBOBJS to make sure that it is translated to