x86_64 problems/fix (was: alloc.c problem when GC_MARK_STACK is GC_USE_GCPROS_AS_BEFORE)

[Barry Fishman]

I was unable to make any change to alloc.c that would fix the GC_MARK_STACK
problem without later crashes in the build while compiling the lisp
files.

However, I suspect the attached change to src/s/gnu-linux.h is
approprate.  This produces a working emacs (for me) on a amd64
gnu-linux system (SuSE 9.1), although it sidesteps the problem in
alloc.c.

Index: gnu-linux.h
===================================================================
RCS file: /cvsroot/emacs/emacs/src/s/gnu-linux.h,v
retrieving revision 1.89
diff -c -r1.89 gnu-linux.h
*** gnu-linux.h 1 Sep 2003 15:45:58 -0000       1.89
--- gnu-linux.h 6 Jul 2004 23:49:36 -0000
***************
*** 355,361 ****
  
  #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
      || defined __alpha__ || defined __mips__ || defined __s390__ \
!     || defined __arm__ || defined __powerpc__
  #define GC_SETJMP_WORKS 1
  #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
  #ifdef __mc68000__
--- 355,361 ----
  
  #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
      || defined __alpha__ || defined __mips__ || defined __s390__ \
!     || defined __arm__ || defined __powerpc__ || defined __amd64__
  #define GC_SETJMP_WORKS 1
  #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
  #ifdef __mc68000__

-- 
Barry Fishman