--- gcc/config/m68k/next.h	2018/04/24 18:10:24	1.1
+++ gcc/config/m68k/next.h	2018/04/24 18:44:12	1.1.1.5
@@ -1,5 +1,5 @@
 /* Target definitions for GNU compiler for mc680x0 running NeXTSTEP
-   Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+   Copyright (C) 1989, 90, 91, 92, 93, 1994 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -15,7 +15,8 @@ GNU General Public License for more deta
 
 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.  */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 #include "m68k/m68k.h"
 #include "nextstep.h"
@@ -33,7 +34,7 @@ the Free Software Foundation, 675 Mass A
 
 /* Names to predefine in the preprocessor for this target machine.  */
 
-#define CPP_PREDEFINES "-Dmc68000 -Dm68k -DNeXT -Dunix -D__MACH__ -D__BIG_ENDIAN__ -D__ARCHITECTURE__=\"m68k\""
+#define CPP_PREDEFINES "-Dmc68000 -Dm68k -DNeXT -Dunix -D__MACH__ -D__BIG_ENDIAN__ -D__ARCHITECTURE__=\"m68k\" -Asystem(unix)  -Asystem(mach) -Acpu(m68k) -Amachine(m68k)"
 
 /* Every structure or union's size must be a multiple of 2 bytes.
    (Why isn't this in m68k.h?)  */
@@ -175,9 +176,26 @@ the Free Software Foundation, 675 Mass A
 
 #undef	GO_IF_INDEXABLE_BASE(X, ADDR)
 #define GO_IF_INDEXABLE_BASE(X, ADDR)	\
-{ if (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) goto ADDR; }
+{ if (LEGITIMATE_BASE_REG_P (X)) goto ADDR; }
 
 /* This accounts for the return pc and saved fp on the m68k. */
 
 #define OBJC_FORWARDING_STACK_OFFSET 8
 #define OBJC_FORWARDING_MIN_OFFSET 8
+
+/* FINALIZE_TRAMPOLINE enables executable stack.  The
+   __enable_execute_stack also clears the insn cache. */
+
+#undef FINALIZE_TRAMPOLINE
+#define FINALIZE_TRAMPOLINE(TRAMP) \
+  emit_library_call(gen_rtx(SYMBOL_REF, Pmode, "__enable_execute_stack"), \
+		    0, VOIDmode, 1, memory_address(SImode, (TRAMP)), Pmode)
+
+/* A C expression used to clear the instruction cache from 
+   address BEG to address END.   On NeXTSTEP this i a system trap. */
+
+#define CLEAR_INSN_CACHE(BEG, END)   \
+   asm volatile ("trap #2")
+
+/* GCC is the primary compiler for NeXTSTEP, so we don't need this.  */
+#undef PCC_STATIC_STRUCT_RETURN