🚀 go-pugleaf

I've been having a problem compiling gcc2.0 using i386-isc as the
configure option.  From looking at the config directory, and the links
setup by configure, this seems to be correct for SysVR3 on i386.

The problem I would get would be when enquire.o was being linked by gcc.
My loader would find __DTORS_LIST__ undefined.
It seems that this problem will only arise for i386 and m88k types of machines
from what I can tell in the config directory (as usual, there is much magic
in here that I don't understand... :-)).

However, by poking around enough and finding a couple of -D types of definitions
that seem relevant (namely DO_GLOBAL_DTORS_BODY and INIT_SECTION_ASM_OP),
it seemed plausible that an "#ifndef INIT_SECTION_ASM_OP" in libgcc2.c should
really be "#ifdef INIT_SECTION_ASM_OP".  Now, I could be completely mistaken,
but when I changed the ifndef to an ifdef (line 1308 in the distribution BTW)
everything seems to work great.  I haven't compiled and tested C++ or
objective-C so it is quite possible that I may have actually broken 
something.  I haven't even had much time to exercise gcc2.0 itself except
on a simple benchmarking program (nice to see about a 20% performance
improvement over gcc1.39 (or is it 1.40?)!).

Anyway, if anyone can confirm that this is the correct fix I would
appreciate it.  For those having similar problems here is a context
diff that illustrates the relevant code in libgcc2.c:

*** libgcc2.c   Thu Feb 27 07:00:30 1992
--- libgcc2-new.c       Thu Feb 27 07:01:17 1992
***************
*** 1304,1312 ****
     the right values.  */

  /* We declare the lists here with two elements each,
     so that they are valid empty lists if no other definition is loaded.  */
! #ifndef INIT_SECTION_ASM_OP
  func_ptr __CTOR_LIST__[2];
  func_ptr __DTOR_LIST__[2];
  #endif /* INIT_SECTION_ASM_OP */

--- 1304,1312 ----
     the right values.  */

  /* We declare the lists here with two elements each,
     so that they are valid empty lists if no other definition is loaded.  */
! #ifdef INIT_SECTION_ASM_OP
  func_ptr __CTOR_LIST__[2];
  func_ptr __DTOR_LIST__[2];
  #endif /* INIT_SECTION_ASM_OP */

-- 
Joel Riedesel
riedesel@glass.den.mmc.com