- fix harmless compiler's warnings (unused variables and missed prototype);
- before refusing to delete package because "there are packages installed
that require this package" check that packages in question is actually
installed;
- add new `-r' option to pkg_delete(8), which instructs it to delete not only
packages specified at command line, but all packages that depend on
specified packages as well.
MFC after: 2 weeks
- fix a harmless bug in match_installed() function introduced in my last
commit;
- uniformely reorder includes across files.
Submitted by: Garrett Rooney <rooneg@electricjellyfish.net>
Not objected by: jkh, -ports
A depends on dependency B then dependency A will be in all cases listed
before B, so ``pkg_add -r'' will fetch/install packages in the correct order.
Previously dependencies were sorted just by its names, which is why
``pkg_add -r'' never actually worked properly.
To be usefull, hovewer, this fix requires that all packages have been
rebuilt, so it will take some time until users would be able to feel
posititive improvements. For the same reasons it is desirable to propagate
these changes to the 4-stable package building cluster *before* 4.3 ports
freeze, so packages for 4.3-RELEASE would be properly prepared.
Prompted by: kris
Insanely appreciated by: obrien
Silently approved by: jkh, -ports
