--- /dev/null
+/*************************************************
+* Exim - an Internet mail transport agent *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 2016 */
+/* Copyright (c) Jeremy Harris 2016 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+/* Solaris-specific code. This is concatenated onto the generic
+src/os.c file. */
+
+#ifdef MISSING_UNSETENV_3
+# include "setenv.c"
+#endif
+
+/* End of os.c-SunOS5 */