Hi!

I used following patches long time to complie gcc-2.5.8 on NetBSD/sparc.
It is very simple to compile it with next script. I use GNU make for this,
wich are compiled on NetBSD without problem.
(Of corse you must include patches for sh bugs, mensioned by Andrew)

#! /bin/sh
#
echo ../gcc-2.5.8/configure --target=sparc-sun-netbsd --srcdir=../gcc-2.5.8
../gcc-2.5.8/configure --target=sparc-sun-netbsd --srcdir=../gcc-2.5.8
echo make LANGUAGES=c CFLAGS=
make LANGUAGES=c CFLAGS=
echo make stage1
make stage1
echo make CC="stage1/xgcc -Bstage1/" CFLAGS=" -O" LANGUAGES=c
make CC="stage1/xgcc -Bstage1/" CFLAGS=" -O" LANGUAGES=c
echo make stage2
make stage2
echo rm -rf stage1
rm -rf stage1
echo make CC="stage2/xgcc -Bstage2/" CFLAGS=" -O"
make CC="stage2/xgcc -Bstage2/" CFLAGS=" -O"
echo make compare
make compare
echo make objc-runtime CC="stage2/xgcc -Bstage2/" CFLAGS=" -O"
make objc-runtime CC="stage2/xgcc -Bstage2/" CFLAGS=" -O"
echo make install CC="stage2/xgcc -Bstage2/" CFLAGS=" -O"
make install CC="stage2/xgcc -Bstage2/" CFLAGS=" -O"
echo make install-libobjc CC="stage2/xgcc -Bstage2/" CFLAGS=" -O"
make install-libobjc CC="stage2/xgcc -Bstage2/" CFLAGS=" -O"

ram

diff -rc2N gcc-2.5.8.gnu/config/sparc/netbsd.h gcc-2.5.8.net/config/sparc/netbsd.h
*** gcc-2.5.8.gnu/config/sparc/netbsd.h	Thu Jan  1 03:00:00 1970
--- gcc-2.5.8.net/config/sparc/netbsd.h	Sun Mar 20 14:25:45 1994
***************
*** 0 ****
--- 1,102 ----
+ /* Configuration for NetBSD Sparc */
+ /* $Id: tm.h,v 1.6 1994/02/10 20:36:31 pk Exp $ */
+ 
+ #include "sparc/sparc.h"
+ 
+ #undef LIB_SPEC
+ #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
+ 
+ #undef CPP_PREDEFINES
+ #define CPP_PREDEFINES "-Dsparc -D__NetBSD__ -Dunix -D__GCC_NEW_VARARGS__"
+ /* Provide required defaults for linker -e and -d switches.  */
+ 
+ #define LINK_SPEC \
+  "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*}"
+ 
+ #undef SIZE_TYPE
+ #define SIZE_TYPE "unsigned int"
+ 
+ #define HAVE_ATEXIT
+ 
+ /*
+  * Some imports from svr4.h in support of shared libraries.
+  */
+ 
+ /* Define the strings used for the special svr4 .type and .size directives.
+    These strings generally do not vary from one system running svr4 to
+    another, but if a given system (e.g. m88k running svr) needs to use
+    different pseudo-op names for these, they may be overridden in the
+    file which includes this one.  */
+ 
+ #define TYPE_ASM_OP	".type"
+ #define SIZE_ASM_OP	".size"
+ #define WEAK_ASM_OP	".weak"
+ 
+ /* The following macro defines the format used to output the second
+    operand of the .type assembler directive.  Different svr4 assemblers
+    expect various different forms for this operand.  The one given here
+    is just a default.  You may need to override it in your machine-
+    specific tm.h file (depending upon the particulars of your assembler).  */
+ 
+ #define TYPE_OPERAND_FMT	"@%s"
+ 
+ /* These macros generate the special .type and .size directives which
+    are used to set the corresponding fields of the linker symbol table
+    entries in an ELF object file under SVR4.  These macros also output
+    the starting labels for the relevant functions/objects.  */
+ 
+ /* Write the extra assembler code needed to declare a function properly.
+    Some svr4 assemblers need to also have something extra said about the
+    function's return value.  We allow for that here.  */
+ 
+ #undef ASM_DECLARE_FUNCTION_NAME
+ #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)			\
+   do {									\
+     fprintf (FILE, "\t%s\t ", TYPE_ASM_OP);				\
+     assemble_name (FILE, NAME);						\
+     putc (',', FILE);							\
+     fprintf (FILE, TYPE_OPERAND_FMT, "function");			\
+     putc ('\n', FILE);							\
+     ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));			\
+     ASM_OUTPUT_LABEL(FILE, NAME);					\
+   } while (0)
+ 
+ /* Write the extra assembler code needed to declare an object properly.  */
+ 
+ #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)			\
+   do {									\
+     fprintf (FILE, "\t%s\t ", TYPE_ASM_OP);				\
+     assemble_name (FILE, NAME);						\
+     putc (',', FILE);							\
+     fprintf (FILE, TYPE_OPERAND_FMT, "object");				\
+     putc ('\n', FILE);							\
+     if (!flag_inhibit_size_directive)					\
+       {									\
+ 	fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);				\
+ 	assemble_name (FILE, NAME);					\
+ 	fprintf (FILE, ",%d\n",  int_size_in_bytes (TREE_TYPE (decl)));	\
+       }									\
+     ASM_OUTPUT_LABEL(FILE, NAME);					\
+   } while (0)
+ 
+ /* This is how to declare the size of a function.  */
+ 
+ #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)			\
+   do {									\
+     if (!flag_inhibit_size_directive)					\
+       {									\
+         char label[256];						\
+ 	static int labelno;						\
+ 	labelno++;							\
+ 	ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno);		\
+ 	ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno);		\
+ 	fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);				\
+ 	assemble_name (FILE, (FNAME));					\
+         fprintf (FILE, ",");						\
+ 	assemble_name (FILE, label);					\
+         fprintf (FILE, "-");						\
+ 	assemble_name (FILE, (FNAME));					\
+ 	putc ('\n', FILE);						\
+       }									\
+   } while (0)
+ 
diff -rc2N gcc-2.5.8.gnu/configure gcc-2.5.8.net/configure
*** gcc-2.5.8.gnu/configure	Sun Apr 24 18:01:14 1994
--- gcc-2.5.8.net/configure	Sun Mar 20 14:51:13 1994
***************
*** 610,613 ****
--- 610,616 ----
  		use_collect2=yes
  		;;
+ 	sparc-*-netbsd*)
+ 		tm_file=sparc/netbsd.h
+ 		;;
  	sparc-*-bsd*)
  		tm_file=sparc/bsd.h
diff -rc2N gcc-2.5.8.gnu/gstdarg.h gcc-2.5.8.net/gstdarg.h
*** gcc-2.5.8.gnu/gstdarg.h	Sun Apr 24 18:02:20 1994
--- gcc-2.5.8.net/gstdarg.h	Sun Apr 24 18:15:30 1994
***************
*** 137,141 ****
     (Note that the comments in NET 2's ansi.h
     are incorrect for _VA_LIST_--see stdio.h!)  */
! #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__)
  /* The macro _VA_LIST is used in SCO Unix 3.2.  */
  #ifndef _VA_LIST
--- 137,141 ----
     (Note that the comments in NET 2's ansi.h
     are incorrect for _VA_LIST_--see stdio.h!)  */
! #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (__NetBSD__) || defined (__bsdi__)
  /* The macro _VA_LIST is used in SCO Unix 3.2.  */
  #ifndef _VA_LIST
***************
*** 143,147 ****
  #ifndef _VA_LIST_T_H
  #define _VA_LIST_T_H
! #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__))
  #define _VA_LIST_
  #endif
--- 143,147 ----
  #ifndef _VA_LIST_T_H
  #define _VA_LIST_T_H
! #if !(defined (__BSD_NET2__) || defined (__NetBSD__) || defined (__bsdi__))
  #define _VA_LIST_
  #endif
diff -rc2N gcc-2.5.8.gnu/gstddef.h gcc-2.5.8.net/gstddef.h
*** gcc-2.5.8.gnu/gstddef.h	Sun Apr 24 18:02:20 1994
--- gcc-2.5.8.net/gstddef.h	Sun Mar 20 21:41:52 1994
***************
*** 23,27 ****
  /* On 4.3bsd-net2, make sure ansi.h is included, so we have
     one less case to deal with in the following.  */
! #if defined (__BSD_NET2__) || defined (____386BSD____)
  #include <machine/ansi.h>
  #endif
--- 23,27 ----
  /* On 4.3bsd-net2, make sure ansi.h is included, so we have
     one less case to deal with in the following.  */
! #if defined (__BSD_NET2__) || defined (__NetBSD__) || defined (____386BSD____)
  #include <machine/ansi.h>
  #endif
diff -rc2N gcc-2.5.8.gnu/gvarargs.h gcc-2.5.8.net/gvarargs.h
*** gcc-2.5.8.gnu/gvarargs.h	Sun Apr 24 18:02:20 1994
--- gcc-2.5.8.net/gvarargs.h	Sun Apr 24 18:18:47 1994
***************
*** 151,155 ****
     Sequent defines _VA_LIST_ in <machine/machtypes.h> to be the type to
     use for va_list (``typedef _VA_LIST_ va_list'') */
! #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__)
  /* The macro _VA_LIST is used in SCO Unix 3.2.  */
  #ifndef _VA_LIST
--- 151,155 ----
     Sequent defines _VA_LIST_ in <machine/machtypes.h> to be the type to
     use for va_list (``typedef _VA_LIST_ va_list'') */
! #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (__NetBSD__) || defined (__bsdi__) || defined (__sequent__)
  /* The macro _VA_LIST is used in SCO Unix 3.2.  */
  #ifndef _VA_LIST
***************
*** 157,161 ****
  #ifndef _VA_LIST_T_H
  #define _VA_LIST_T_H
! #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__))
  #define _VA_LIST_
  #endif
--- 157,161 ----
  #ifndef _VA_LIST_T_H
  #define _VA_LIST_T_H
! #if !(defined (__BSD_NET2__) || defined (__NetBSD__) || defined (__bsdi__) || defined (__sequent__))
  #define _VA_LIST_
  #endif

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