-/* $Cambridge: exim/src/OS/os.h-Linux,v 1.8 2009/06/10 07:34:04 tom Exp $ */
-
/* Exim: OS-specific C header file for Linux */
+/* Some old systems we've received bug-reports for have a <limits.h> which
+does not pull in <features.h>. Best to just pull it in now and have done
+with the issue. */
+
+#include <features.h>
+
+
#define CRYPT_H
#define GLIBC_IP_OPTIONS
#define HAVE_MMAP