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diff --git a/gcc/config/m88k/sysv4.h b/gcc/config/m88k/sysv4.h
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+/* Definitions of target machine for GNU compiler.
+   Motorola 88100 in an 88open ABI environment.
+   Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+
+   Written by Ron Guilmette (rfg@netcom.com).
+   Contributed to FSF by Network Computing Devices.
+
+   Other contributions by Vince Guarna (vguarna@urbana.mcd.mot.com),
+   Ray Essick (essick@i88.isc.com), Wilson Tien (wtien@urbana.mcd.mot.com),
+   and Tom Wood (Tom_Wood@NeXT.com)
+
+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.  */
+
+/* DWARF_DEBUGGING_INFO defined in svr4.h.  */
+
+#ifndef NO_BUGS
+#define AS_BUG_DOT_LABELS
+#define AS_BUG_POUND_TYPE
+#endif
+
+#include "svr4.h"
+#include "m88k/m88k.h"
+
+/* Identify the compiler.  */
+#undef  VERSION_INFO1
+#define VERSION_INFO1 "88open ABI, "
+
+/* Default switches */
+#undef	TARGET_DEFAULT
+#define TARGET_DEFAULT	(MASK_CHECK_ZERO_DIV | \
+			 MASK_OCS_DEBUG_INFO | \
+			 MASK_SVR4)
+
+/* Cpp spec.  These pre-assertions are needed for SVR4 as they occur
+   often in the system header files.  __svr4__ is our extension.  */
+
+#undef  CPP_PREDEFINES
+#define CPP_PREDEFINES \
+  "-Dm88000 -Dm88k -Dunix -D__svr4__ -Amachine(m88k) -Acpu(m88k) -Asystem(unix) -Asystem(svr4)"
+
+/* For the AT&T SVR4 port, the function is _mcount.  */
+#undef	FUNCTION_PROFILER
+#define FUNCTION_PROFILER(FILE, LABELNO) \
+  output_function_profiler (FILE, LABELNO, "_mcount", 1)
+
+/* Override svr4.h and m88k.h.  */
+#undef	INIT_SECTION_ASM_OP
+#define INIT_SECTION_ASM_OP "section\t.init,\"xa\",#progbits"
+#undef	FINI_SECTION_ASM_OP
+#define FINI_SECTION_ASM_OP "section\t.fini,\"xa\",#progbits"
+
+/* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
+ 
+   Note that we want to give these sections the SHF_WRITE attribute
+   because these sections will actually contain data (i.e. tables of
+   addresses of functions in the current root executable or shared library
+   file) and, in the case of a shared library, the relocatable addresses
+   will have to be properly resolved/relocated (and then written into) by
+   the dynamic linker when it actually attaches the given shared library
+   to the executing process.  (Note that on SVR4, you may wish to use the
+   `-z text' option to the ELF linker, when building a shared library, as
+   an additional check that you are doing everything right.  But if you do
+   use the `-z text' option when building a shared library, you will get
+   errors unless the .ctors and .dtors sections are marked as writable
+   via the SHF_WRITE attribute.)  */
+ 
+#undef	CTORS_SECTION_ASM_OP
+#define CTORS_SECTION_ASM_OP	"section\t.ctors,\"aw\""
+#undef	DTORS_SECTION_ASM_OP
+#define DTORS_SECTION_ASM_OP	"section\t.dtors,\"aw\""