A patch for top Makefile

[Jeffrey A Law]

  In message < m10Ao6d-000392C@ocean.lucon.org >you write:
  > When RPATH_ENVVAR is empty, you get
  > 
  > 	$(RPATH_ENVVAR)=$$r/bfd:$$r/opcodes:
  > 
  > where the trailing ':' means searching the current directory. That is
  > not intended. This patch fixes it.
  > 
  > Thanks.
  > 
  > -- 
  > H.J. Lu (hjl@gnu.org)
  > -- 
  > Wed Feb 10 20:44:05 1999  H.J. Lu  (hjl@gnu.org)
  > 
  > 	* Makefile.in (REALLY_SET_LIB_PATH): Append $$$(RPATH_ENVVAR)
  > 	only if it is not empty.
Thanks!  Installed.

jeff