--- /dev/null
+/*
+ * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
+ *
+ * The contents of this file constitute Original Code as defined in and are
+ * subject to the Apple Public Source License Version 1.2 (the 'License').
+ * You may not use this file except in compliance with the License. Please obtain
+ * a copy of the License at http://www.apple.com/publicsource and read it before
+ * using this file.
+ *
+ * This Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
+ * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
+ * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+ * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
+ * specific language governing rights and limitations under the License.
+ */
+
+
+/* e_os2_legacy.h */
+
+#ifndef HEADER_E_OS2_H
+#define HEADER_E_OS2_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <openssl/opensslconf_legacy.h> /* OPENSSL_UNISTD */
+
+#ifdef MSDOS
+# define OPENSSL_UNISTD_IO <io.h>
+# define OPENSSL_DECLARE_EXIT extern void exit(int);
+#else
+# define OPENSSL_UNISTD_IO OPENSSL_UNISTD
+# define OPENSSL_DECLARE_EXIT /* declared in unistd.h */
+#endif
+
+/* Definitions of OPENSSL_GLOBAL and OPENSSL_EXTERN,
+ to define and declare certain global
+ symbols that, with some compilers under VMS, have to be defined and
+ declared explicitely with globaldef and globalref. On other OS:es,
+ these macros are defined with something sensible. */
+
+#if defined(VMS) && !defined(__DECC)
+# define OPENSSL_EXTERN globalref
+# define OPENSSL_GLOBAL globaldef
+#else
+# define OPENSSL_EXTERN extern
+# define OPENSSL_GLOBAL
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+