--- openssh-4.2p1/configure.ac~	2006-01-05 02:09:10.000000000 +0100
+++ openssh-4.2p1/configure.ac	2006-01-05 02:32:00.000000000 +0100
@@ -808,6 +808,7 @@
 
 AC_MSG_CHECKING(for possibly buggy zlib)
 AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <stdlib.h>
 #include <stdio.h>
 #include <zlib.h>
 int main()