Oden just pointed me on irc that some files of postgresql are not in the
default location:

    --datadir=%{_datadir}/pgsql \
    --includedir=%{_includedir}/pgsql \
    --sysconfdir=%{_sysconfdir}/pgsql \

This is annoying for C headers files, forcing us to patches or add extra
options to all software/specs files or software related to postgresql.

I don't see any reasons to not back to a standard location. So I do plan to
remove theses line from postgresql 8.3 spec file to kill this issue.
This mean many rpm will need to be fixed.

Does anyone disagree ?