Add common xm-openbsd.h fragment, to be used by all archs to avoid

unpleasant surprises (like being mistaken for SysV).

So far, pa is the only arch that uses it.

2 files changed, 36 insertions, 0 deletions

diff --git a/gnu/usr.bin/gcc/config/pa/xm-openbsd.h b/gnu/usr.bin/gcc/config/pa/xm-openbsd.h
index 01eade28eb6..f965bdeeeec 100644
--- a/gnu/usr.bin/gcc/config/pa/xm-openbsd.h
+++ b/gnu/usr.bin/gcc/config/pa/xm-openbsd.h
@@ -18,6 +18,7 @@ along with GNU CC; see the file COPYING.  If not, write to
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
+#include <xm-openbsd.h>
 /* It is simpler to grab correct defines directly... */
 /* #defines that need visibility everywhere.  */
 #define FALSE 0
diff --git a/gnu/usr.bin/gcc/config/xm-openbsd.h b/gnu/usr.bin/gcc/config/xm-openbsd.h
new file mode 100644
index 00000000000..74a842184c3
--- /dev/null
+++ b/gnu/usr.bin/gcc/config/xm-openbsd.h
@@ -0,0 +1,35 @@
+/* Configuration fragment for hosts running a version of OpenBSD.
+   Copyright (C) 1999 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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 2, or (at your option)
+any later version.
+
+GNU CC 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 CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+/* This file gets included by all architectures. It holds stuff
+   that ought to be defined when hosting a compiler on an OpenBSD
+   machine, independently of the architecture. It's included by
+   ${cpu_type}/xm-openbsd.h, not included directly.  */
+
+/* OpenBSD is trying to be POSIX-compliant, to the point of fixing
+   problems that may occur with gcc's interpretation.  */
+#undef POSIX
+#define POSIX
+
+/* Ensure we get gnu C's defaults.  */
+#ifdef __GNUC__
+#define alloca __builtin_alloca
+#endif
+
+