-#include "usg5-4-2.h"
+/* s/ file for Unixware.
+
+Copyright (C) 1999-2011 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
-#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->__ptr - (FILE)->__base)
-/* arch-tag: d82e92e7-9443-4a60-a581-7f293cbae8a3
- (do not change this comment) */
+#include "usg5-4-common.h"
+
+/* #define HAVE_GETWD (appears to be buggy on SVR4.2) */
+#undef HAVE_GETWD
+
+#undef HAVE_SYSV_SIGPAUSE
+
+/* This is the same definition as in usg5-4-common.h, but with sigblock/sigunblock
+ rather than sighold/sigrelse, which appear to be BSD4.1 specific.
+ It may also be appropriate for SVR4.x
+ (x<2) but I'm not sure. fnf@cygnus.com */
+/* This sets the name of the slave side of the PTY. On SysVr4,
+ grantpt(3) forks a subprocess, so keep sigchld_handler() from
+ intercepting that death. If any child but grantpt's should die
+ within, it should be caught after sigrelse(2). */
+#define PTY_TTY_NAME_SPRINTF \
+ { \
+ char *ptsname(), *ptyname; \
+ \
+ sigblock(sigmask(SIGCLD)); \
+ if (grantpt(fd) == -1) \
+ fatal("could not grant slave pty"); \
+ sigunblock(sigmask(SIGCLD)); \
+ if (unlockpt(fd) == -1) \
+ fatal("could not unlock slave pty"); \
+ if (!(ptyname = ptsname(fd))) \
+ fatal ("could not enable slave pty"); \
+ strncpy(pty_name, ptyname, sizeof(pty_name)); \
+ pty_name[sizeof(pty_name) - 1] = 0; \
+ }
+
+#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->__ptr - (FILE)->__base)