2 files changed, 24 insertions, 0 deletions

diff --git a/src/s/esix5r4.h b/src/s/esix5r4.h
new file mode 100644
index 00000000000..124c9fa8b88
--- /dev/null
+++ b/src/s/esix5r4.h
@@ -0,0 +1,10 @@
+/* Definitions for ESIX System V 4.0.4, a variant of V.4 for the 386.  */
+
+#include "usg5-4.h"
+
+#define LIB_X11_LIB -lsocket -lc -lX11
+#undef LIB_STANDARD
+#define LIB_STANDARD -lnsl -lns -lelf /usr/ucblib/libucb.a /usr/ccs/lib/crtn.o
+
+/* Resolve BSD string functions in X Window library from libucb.a.  */
+#define BSTRING
diff --git a/src/systty.h b/src/systty.h
index 186d3edff80..0fd9e371155 100644
--- a/src/systty.h
+++ b/src/systty.h
@@ -107,6 +107,20 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #endif
 
 
+/* Try to establish the correct character to disable terminal functions
+   in a system-independent manner.  Note that USG (at least) define
+   _POSIX_VDISABLE as 0!  */
+
+#ifdef _POSIX_VDISABLE
+#define CDISABLE _POSIX_VDISABLE
+#else /* not _POSIX_VDISABLE */
+#ifdef CDEL
+#define CDISABLE CDEL
+#else /* not CDEL */
+#define CDISABLE 255
+#endif /* not CDEL */
+#endif /* not _POSIX_VDISABLE */
+
 /* Get the number of characters queued for output.  */
 
 /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters