diff --git a/gcc/config/i386/scodbx.h b/gcc/config/i386/scodbx.h
new file mode 100644
index 00000000000..58df99b9ee3
--- /dev/null
+++ b/gcc/config/i386/scodbx.h
@@ -0,0 +1,88 @@
+/* Definitions for Intel 386 running SCO Unix System V,
+   using dbx-in-coff encapsulation.
+   Copyright (C) 1992 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include "i386/svr3dbx.h"
+
+/* Overridden defines for SCO systems from sco.h. */
+
+/* By default, target has a 80387, uses IEEE compatible arithmetic,
+   and returns float values in the 387, ie,
+   (TARGET_80387 | TARGET_FLOAT_RETURNS_IN_80387)
+
+   SCO's software emulation of a 387 fails to handle the `fucomp'
+   opcode.  fucomp is only used when generating IEEE compliant code.
+   So don't make TARGET_IEEE_FP default for SCO. */
+
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT 0201
+
+/* Use crt1.o as a startup file and crtn.o as a closing file.  */
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC \
+  "%{!r:%{!z:svr3.ifile%s}%{z:svr3z.ifile%s}}\
+   %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}"
+
+/* Library spec, including SCO international language support. */
+
+#undef LIB_SPEC
+#define LIB_SPEC \
+ "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} %{scointl:libintl.a%s} -lc"
+
+/* Specify predefined symbols in preprocessor.  */
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-Dunix -Di386 -DM_UNIX -DM_I386 -DM_COFF -DM_WORDSWAP"
+
+#undef CPP_SPEC
+#define CPP_SPEC "%{scointl:-DM_INTERNAT}"
+
+/* This spec is used for telling cpp whether char is signed or not.  */
+
+#undef SIGNED_CHAR_SPEC
+#if DEFAULT_SIGNED_CHAR
+#define SIGNED_CHAR_SPEC \
+ "%{funsigned-char:-D__CHAR_UNSIGNED__ -D_CHAR_UNSIGNED}"
+#else
+#define SIGNED_CHAR_SPEC \
+ "%{!fsigned-char:-D__CHAR_UNSIGNED__ -D_CHAR_UNSIGNED}"
+#endif
+
+/* Use atexit for static destructors, instead of defining
+   our own exit function.  */
+#define HAVE_ATEXIT
+
+/* caller has to pop the extra argument passed to functions that return
+   structures. */
+
+#undef RETURN_POPS_ARGS
+#define RETURN_POPS_ARGS(FUNTYPE,SIZE)   \
+  (TREE_CODE (FUNTYPE) == IDENTIFIER_NODE ? 0			\
+   : (TARGET_RTD						\
+      && (TYPE_ARG_TYPES (FUNTYPE) == 0				\
+	  || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE)))	\
+	      == void_type_node))) ? (SIZE)			\
+   : 0)
+/* On other 386 systems, the last line looks like this:
+   : (aggregate_value_p (FUNTYPE)) ? GET_MODE_SIZE (Pmode) : 0)  */
+
+/* Use periods rather than dollar signs in special g++ assembler names.  */
+
+#define NO_DOLLAR_IN_LABEL