[pacman-dev] [patch] Please use alpm_depcmp! (part 1)

[Nagy Gabor]

> Can you explain exactly what this patch does before I commit it? 
Hi!
-this is cleaner;-)
-_alpm_checkdeps is sophisticated and if we do some changes in
dependency checking (for example we add version number for
provisions .-), we need to change the _alpm_checkdeps function only.
-the old version didn't take care of version numbers, just the package
names..., I provide you a requiredby000.py test, which fails without
the patch.
Bye, ngaba
----requiredby.py----
self.description = "A package was removed with -Rd, then we downgrade
it...: requiredby test"

lp1 = pmpkg("pkg1")
lp1.depends = ["pkg2=1.0-2"]
self.addpkg2db("local", lp1)

p = pmpkg("pkg2", "1.0-1")
self.addpkg(p)

self.args = "-A %s" % p.filename()

self.addrule("PACMAN_RETCODE=0")
self.addrule("PKG_EXIST=pkg1")
self.addrule("PKG_VERSION=pkg2|1.0-1")
self.addrule("PKG_EXIST=pkg2")
self.addrule("!PKG_REQUIREDBY=pkg2|pkg1")