Paul Deppe wrote: > A related question - after rebuilding with the makefile system, is > there a way to "make install" only the files which have changed? For > example, suppose there is only a change to a .cxx file in plib/ssg. I > do a "make", which rebuilds only libplibssg.a. But when I do a "make > install", all the header files are also installed with new dates.
Are you sure? I was under the impression that the "install" program (and CVS, for that matter) preserved the date stamps on files. The stamps on the installed files should be the modification times in the archive. I might be wrong... > Then when I rebuild SimGear and FlightGear, make thinks that the > header files have changed and recompiles everything which depends on > the header files (which is just about everything). This effect > ripples down from plib to SimGear to FlightGear to Atlas. > > It would save a lot of compile time if one could "make install" only > the files which have changed. Is there a way to do this? The existing build stuff, frankly, is designed for the simple case where a user wants to compile and install something once for use in the future. If you're doing development, it's probably not optimal. A little elbow grease to match your private habits is probably unavoidable. For example, I always use a custom "--prefix" for all my FlightGear stuff, never install the shared metakit library, and often write 1-liner "build" "run" and "link" scripts for whatever focused feature I'm playing with. For your specific situation (if it turns out that timestamps really are your problem), you might try making symlinks from the install tree to the source tree, and skipping the "make install" step entirely. The core point being that you're never likely to find things packaged quite the way you want them. One of the central characteristics of being a geeky hacker type is a strongly held conviction that the rest of the world are idiots and are doing things all wrong. :) Andy -- Andrew J. Ross NextBus Information Systems Senior Software Engineer Emeryville, CA [EMAIL PROTECTED] http://www.nextbus.com "Men go crazy in conflagrations. They only get better one by one." - Sting (misquoted) _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
