xbps-src:
 * Personalized scripts per template to unpack distfiles.
 * Multiple URLs to download source distribution files, aliases, etc.
   Something like ${sourceforge} to pick up any specified mirror on the list.
 * More robust and fast dependency checking.
 * $version needs to have a dot to be found by xbps.sh.
   Some packages do not have a dot on its version, like udev-130.
 * Add support to run the prepost-* scripts, so that the same actions are
   performed in source/bin packages. Use current postinstall_helpers to
   automatically add triggers, shared by src/bin pkgs. [IN PROGRESS]

xbps-cmpver:
 * It fails in some cases: foo-2.0 vs foo-1.99 and foo-2a vs foo-2b.

Packages:
 * fix mpfr hardcoded rpath for gmp.
 * Fix sudo permissions for /etc/sudoers. This must be 644 to be able to
   build the binary package.

xbps-bin:
 * Add support to handle conf_files and keep_dirs from package metadata.
 * Add support to remove recursively all deps of a package. [IN PROGRESS]
 * Add support to detect orphaned packages.
 * Add support to check sha256 hashes of all installed files, as well as
   hashes for binary packages before installation happens.
 * Add support to use the show target with no repositories.
 * Add support to install binary packages without any repository.

xbps-repo:
 * Replace binpkg-genindex.sh with a target for xbps-repo to generate the
   index. The goal is to be able to add/remove a package without having to
   create the file from scratch, for performance.
 * Some problems when installing binpkgs with repos:
	- If first repo is valid but second is not, will fail.

lib:
 * Dependency code has a problem yet: fix the order of dependencies with
   the same priority, as seen by xbps-base-{chroot,system}.