Re: VPATH Object file search optimization

[Paul D. Smith]

%% "Ricky Venable" <address@hidden> writes:

  rv> I've noticed that my makefile had a good deal of overhead looking
  rv> for object files. For a clean build, my makefile searches through
  rv> all of VPATH looking for the object files. I only store object
  rv> files in one directory, so it is a waste of time for make to
  rv> search all of the source directories for object files, when I know
  rv> they are not in there.  I hoped that the statement "vpath %.o"
  rv> would clear the path for all .o files, but of course it still
  rv> looks through all of the VPATH directories.  The only solution I
  rv> can think of is to not even use VPATH, but to use vpath for each
  rv> of my file types. This of course looks more clumsy, so I am
  rv> wondering if there is another way.

The only way to avoid the VPATH search, if VPATH is set, is to use
fully-qualified pathnames.

-- 
-------------------------------------------------------------------------------
 Paul D. Smith <address@hidden>          Find some GNU make tips at:
 http://www.gnu.org                      http://make.paulandlesley.org
 "Please remain calm...I may be mad, but I am a professional." --Mad Scientist