OK, I see where you're going with the sentinel file. While still tedious, I think it's workable. Thanks for the help!
Paul Smith-20 wrote: > > On Wed, 2008-02-20 at 11:55 -0800, EricDeb wrote: >> Is there a feature in GNU Make that will let me compile several source >> files with a single command implicitly? I understand I could write >> rules like this: >> >> a.o b.o c.o d.o : a.c b.c c.c d.c >> $(CC) -c $(CPPFLAGS) $? > > You definitely DON'T want to do this. This does completely the wrong > thing, and will fail badly if you ever try to run parallel builds (at > least). > >> But, this causes a few problems. First, if any of the .o's are missing >> we'll compile all four sources. Second it will be tedious to create >> the makefiles like this, especially since this project has many many >> files in it. > > Unfortunately GNU make doesn't have any ability to define multiple > targets being built from a single invocation of a rule when creating > explicit rules like this. > > Even if it did, what you want is slightly different because that > behavior would assume that ALL the targets would be built from a single > invocation. > > > The only way you can do this is with a sentinel file, like this: > > .sentinel: a.c b.c c.c d.c > $(CC) -c $(CFLAGS) $(CPPFLAGS) $? > @touch $@ > > a.o b.o c.o d.o: .sentinel > > Unfortunately there are still holes in this: for example if someone > deletes a .o file then this won't rebuild anything; you'd have to > explicitly delete the .sentinel file by hand. > > There may be ways to work around this as well, but it would require some > fancier footwork. > > -- > ----------------------------------------------------------------------------- > Paul D. Smith <[EMAIL PROTECTED]> > http://make.mad-scientist.us > "Please remain calm--I may be mad, but I am a professional."--Mad > Scientist > > > > > > > > _______________________________________________ > Help-make mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/help-make > > -- View this message in context: http://www.nabble.com/Compiling-multiple-sources-in-one-command-implicitly-tp15596892p15598176.html Sent from the Gnu - Make - Help mailing list archive at Nabble.com. _______________________________________________ Help-make mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-make
