3.0.2 dgux typeahead patch

[Roderick Schertler <roderick@xxxxxxxx>]

The typeahead kluge which is use on Ultrix is necessary for dgux as
well.  Additionally, it's necessary to include ioctl.h in zle_main.c
otherwise FIONREAD won't be defined so the kluge won't kick in.  (Maybe
this should be done in system.h instead.)

Otherwise everything works wonderfully, thanks for the great work.

Index: Src/zle_main.c
Prereq:  2.29 
--- Src/zle_main.c	Tue Dec 17 15:14:11 1996
+++ ../zsh/Src/zle_main.c	Mon Dec 23 16:54:04 1996
@@ -47,6 +47,9 @@
 #define ZLEGLOBALS
 #define ZLE
 #include "zsh.h"
+#ifdef CLOBBERS_TYPEAHEAD
+#  include <sys/ioctl.h>	/* for FIONREAD */
+#endif
 
 static int emacs_cur_bindtab[256], eofchar, eofsent;
 static int viins_cur_bindtab[256];
Index: configure.in
Prereq:  2.28 
--- configure.in	Tue Dec 17 15:14:12 1996
+++ ../zsh/configure.in	Mon Dec 23 16:37:36 1996
@@ -592,17 +592,21 @@
 ])
 AC_DEFINE_UNQUOTED(WTMP_FILE_CONFIG, "$zsh_cv_path_wtmp")
 
-dnl ----------------------------
-dnl TYPEAHEAD KLUDGE FOR ULTRIX
-dnl ----------------------------
+dnl ----------------
+dnl TYPEAHEAD KLUDGE
+dnl ----------------
 dnl Some systems clobber typeahead when you go from canonical input
 dnl processing to non-canonical, so we need a FIONREAD ioctl.
 dnl I don't know how to check this with configure, so I am using the
 dnl system names directly.
 dnl The doubled square brackets are necessary because autoconf uses m4.
 AC_CACHE_CHECK(if typeahead needs FIONREAD, zsh_cv_sys_clobbers_typeahead,
-[test `echo $host_os | sed 's/^\([[a-z]]*\).*/\1/'` = ultrix &&
-zsh_cv_sys_clobbers_typeahead=yes || zsh_cv_sys_clobbers_typeahead=no])
+[case x-$host_os in
+    x-ultrix* | x-dgux*)
+	zsh_cv_sys_clobbers_typeahead=yes;;
+    *)
+	zsh_cv_sys_clobbers_typeahead=no;;
+esac])
 if test $zsh_cv_sys_clobbers_typeahead = yes; then
   AC_DEFINE(CLOBBERS_TYPEAHEAD)
 fi

-- 
Roderick Schertler
roderick@xxxxxxxx