--- gcc/config/svr3.h	2018/04/24 17:59:54	1.1.1.3
+++ gcc/config/svr3.h	2018/04/24 18:27:32	1.1.1.6
@@ -2,7 +2,7 @@
    targeting GCC for some generic System V Release 3 system.
    Copyright (C) 1991 Free Software Foundation, Inc.
 
-   Written by Ron Guilmette (rfg@ncd.com).
+   Written by Ron Guilmette (rfg@netcom.com).
 
 This file is part of GNU CC.
 
@@ -18,7 +18,8 @@ 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.
 
    To use this file, make up a file with a name like:
 
@@ -39,6 +40,9 @@ the Free Software Foundation, 675 Mass A
    appropriate define for the type of hardware that you are targeting.
 */
 
+/* Define a symbol indicating that we are using svr3.h.  */
+#define USING_SVR3_H
+
 /* Define a symbol so that libgcc* can know what sort of operating
    environment and assembler syntax we are targeting for.  */
 #define SVR3_target
@@ -147,7 +151,7 @@ the Free Software Foundation, 675 Mass A
 #define WCHAR_TYPE_SIZE BITS_PER_WORD
 
 /* Assembler pseudos to introduce constants of various size.  These
-   definitions hsould work for most svr3 systems.  */
+   definitions should work for most svr3 systems.  */
 
 #undef ASM_BYTE_OP
 #define ASM_BYTE_OP "\t.byte"
@@ -218,7 +222,7 @@ the Free Software Foundation, 675 Mass A
 /* CTOR_LIST_BEGIN and CTOR_LIST_END are machine-dependent
    because they push on the stack.  */
 
-#ifdef STACK_GROWS_DOWNWARD
+#ifndef STACK_GROWS_DOWNWARD
 
 /* Constructor list on stack is in reverse order.  Go to the end of the
    list and go backwards to call constructors in the right order.  */
@@ -255,9 +259,20 @@ do {								\
   INIT_SECTION_FUNCTION						\
   FINI_SECTION_FUNCTION
 
+#define BSS_SECTION_FUNCTION					\
+void								\
+bss_section ()							\
+{								\
+  if (in_section != in_bss)					\
+    {								\
+      fprintf (asm_out_file, "\t%s\n", BSS_SECTION_ASM_OP);	\
+      in_section = in_bss;					\
+    }								\
+}
+
 #define INIT_SECTION_FUNCTION					\
 void								\
-init_section ()						\
+init_section ()							\
 {								\
   if (in_section != in_init)					\
     {								\
@@ -293,7 +308,9 @@ const_section ()							\
     }									\
 }
 
-#if 0
+/* The ctors and dtors sections are not normally put into use 
+   by EXTRA_SECTIONS and EXTRA_SECTION_FUNCTIONS as defined in svr3.h,
+   but it can't hurt to define these macros for whatever systems use them.  */
 #define CTORS_SECTION_FUNCTION						\
 void									\
 ctors_section ()							\
@@ -315,7 +332,6 @@ dtors_section ()							\
       in_section = in_dtors;						\
     }									\
 }
-#endif
 
 /* This is machine-dependent
    because it needs to push something on the stack.  */
@@ -348,7 +364,10 @@ dtors_section ()							\
   else if (TREE_CODE (DECL) == VAR_DECL)				\
     {									\
       if ((0 && RELOC)	/* should be (flag_pic && RELOC) */		\
-	  || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL))		\
+	  || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)		\
+	  || !DECL_INITIAL (DECL)					\
+	  || (DECL_INITIAL (DECL) != error_mark_node			\
+	      && !TREE_CONSTANT (DECL_INITIAL (DECL))))			\
 	data_section ();						\
       else								\
 	const_section ();						\