#if !defined(MSDOS) && !defined(VMS) && !defined(WIN32)
#include <openssl/opensslconf.h>
-#include OPENSSL_UNISTD
+#ifdef OPENSSL_UNISTD
+# include OPENSSL_UNISTD
+#else
+# include <unistd.h>
+#endif
/* If unistd.h defines _POSIX_VERSION, we conclude that we
* are on a POSIX system and have sigaction and termios. */
#if defined(_POSIX_VERSION)
#undef SGTTY
#endif
-#if !defined(TERMIO) && !defined(TERMIOS) && !defined(VMS) && !defined(MSDOS) && !defined(MAC_OS_pre_X)
+#if !defined(TERMIO) && !defined(TERMIOS) && !defined(VMS) && !defined(MSDOS) && !defined(MAC_OS_pre_X) && !defined(MAC_OS_GUSI_SOURCE)
#undef TERMIOS
#undef TERMIO
#define SGTTY
};
#endif
-#ifdef MAC_OS_pre_X
+#if defined(MAC_OS_pre_X) || defined(MAC_OS_GUSI_SOURCE)
/*
* This one needs work. As a matter of fact the code is unoperational
* and this is only a trick to get it compiled.