(libobjc) config patch for canadian cross

[Jeffrey A Law]

  In message < 199904240148.UAA00799@modi.xraylith.wisc.edu >you write:
  > This patchlet fixes a long standing problem of libobjc not building under
  > canadian cross. The current configuration tries to do the following:
  > 
  > 	runtime-info.h: $(MULTIBUILDTOP)../../gcc/cc1obj
  > 		$(MULTIBUILDTOP)../../gcc/cc1obj [...]
  > 
  > which only works for native and cross. The patch uses CC passed in from
  > above to find cc1obj, and also removes the unneeded dependency that causes
  > problems (same old exeext story). If cc1obj is not built, configure will 
  > not go there, so no need for the explicit check.
  > 
  > Tested on native (i686-pc-linux-gnu), cross and canadian cross for
  > i586-pc-cygwin32.
  > 
  > Fri Apr 23 18:55:57 1999  Mumit Khan  <khan@xraylith.wisc.edu>
  > 
  > 	* Makefile.in (CC1OBJ): Define in terms of CC.
  > 	(runtime-info.h): Use.
Thanks.  Installed.
jeff