* Wouter Verhelst (wouter@grep.be) wrote: > Hi, > > Recent versions of automake add an option --disable-dependency-tracking > to the generated configure script. If you don't use that option, the > generated Makefile will wrap all calls to the compiler in a call to > 'depcomp', which will generate a Makefile snippet in a .deps directory > to better track dependencies. This would include dependencies in the to > be built package, but also dependencies outside that package, e.g., > system headers. > > While I can understand the value of this for an upstream developer, I > would wonder whether this is of any value for Debian packages. Debian > packages typically do not profit from this kind of optimization; after > all, a call to 'dpkg-buildpackage' will start off by running a 'make > clean', which means that all source files are (unconditionally) rebuilt > anyway. Well that's true if invoked from dpkg-buildpackage, it's not necessarily true in general. A developer working on a package might not do a complete clean rebuild, so it could have adverse effects. But if we could detect dpkg-buildpackage was the runner, then disabling dependency tracking would provide a little speed boost. > Is there any other reason why we would still need to use automake's > dependency tracking anyway? > -- Eric Dorland <eric.dorland@mail.mcgill.ca> ICQ: #61138586, Jabber: hooty@jabber.com 1024D/16D970C6 097C 4861 9934 27A0 8E1C 2B0A 61E9 8ECF 16D9 70C6 -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCS d- s++: a-- C+++ UL+++ P++ L++ E++ W++ N+ o K- w+ O? M++ V-- PS+ PE Y+ PGP++ t++ 5++ X+ R tv++ b+++ DI+ D+ G e h! r- y+ ------END GEEK CODE BLOCK------
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