Hi! Steve Langasek [2005-08-08 17:11 -0700]: > Package: libpq-dev > Version: 8.0.3-12 > Severity: normal > > Hi Martin, Oliver, > > I've been taking a closer look at the new postgresql -dev package layout > now that FTBFS bugs are finding themselves filed against packages, and > I'm concerned that the current layout seems to more or less gratuitously > break compatibility with historical sources.
This was done with the possibility in mind to allow installation of several versions of libpq-dev in mind. E. g. suppose postgresql-8.1 introduces a new client API libpq5, so we need libpq4-dev and libpq5-dev. Since we also want to support older major releases of postgresql, we can't just drop libpq4-dev. That, and the existence of pg_config (which should be used by packages to solve this problem once and for all) were the reasons why I did it that way. > The package moves the headers from /usr/include/postgresql/ to > /usr/include/postgresql/8.0/, which definitely breaks any sources that > include the headers as <postgresql/foo.h>; and the recommended interface > for detecting the include path is now pg_config --includedir. > > But there can only ever be one package installed at a time which > provides pg_config... So if all such -dev packages must conflict, why > not use the /usr/include/postgresql/ path directly? Right, this is not yet perfect yet. It is possible to change pg_config to work for multiple libpqX-dev, it just didn't happen yet since it is not necessary right now. > I realize this may be the result of an upstream decision, but I think > this is worth considering given the number of packages that are still > failing to build as a result of this change. I see your point. I'm just afraid that this takes the pressure out of maintainers to drop the postgresql-dev dependency out of their packages and use pg_config to get the path information. I definitively want to drop postgresql-dev after Etch, so at some point maintainers just _have_ to fix their packages. But if it helps the release process, I can certainly move the client-side include files back to the old location. Martin -- Martin Pitt http://www.piware.de Ubuntu Developer http://www.ubuntu.com Debian Developer http://www.debian.org
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