On Mon, Feb 15, 2010 at 12:48 AM, Mark Galeck (CW) <[email protected]> wrote: ... >>Regardless, if "foobar/" works and "foobar//" doesn't work, then why > are you writing the latter? >>"Doctor, it hurts when I do this?" "So stop doing that!" > > C'mon Philip, this is bad analogy, obviously, it must be that I need it for > something.
No, that's not obvious at all. I've seen plenty of questions that were asked out of pure curiosity. Secondly, you don't "need" this; you "need" the solution to the actual problem that you're trying to solve. If there's another way to solve your problem that doesn't involve using double-slashes in vpaths are you *really* going to ignore it because you've decided that the only acceptable solution is one that uses double-slashes? > What makes you think I am a masochist?? That's just too easy a straight-line. > OK if you really want to know... > This is "syntactic sugar", a "marker", I use it so that when the compiler > returns such paths to me, it preserves the marker, or rearranges it in a > predictable way, so I can process statistical information about the usage of > the paths. Not source paths really, these are cheap to search, but include > paths, which are very expensive because of the number of include files per > one source. I put markers in both include paths and source paths, they have > to differ in a certain way. It would be better for me to use // if it worked > in a vpath. Because it does not work, the next thing I can use is like > \.\.\, this is longer and uglier, people notice and ask questions. By > statistically and dynamically optimizing the usage of compiler directory > lookup, I can dramatically cut down long build times. Hmm, so you're looking for some way to tag some paths in *some* of their uses, but not in all of them, so that you can later examine the build output (just the output of 'make'? auto-dependency files too?) to determine when and where the paths were used in their tagged forms? Tagging would be done inside the source files (the #include lines, presumably) only? Or also in the -I options passed to the compiler? Philip Guenther _______________________________________________ Help-make mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-make
