Merge pull request #173 from redglasses/master

Adding pkg/lzo
Merge pull request #174 from redglasses/master

Adding pkg/acl
Merge pull request #175 from redglasses/master

Adding pkg/sparse
su: one second delay on fail is enough
Bump pcre version to 8.34 (latest)

Tested rebuilds of nginx, nmap and php... all were fine
Build pkg/pcre respecting butch-optflags
luajit: do not replace lua by default
swig: depends on pcre
libxml2: fix pkgconfig file for static linking
sparse: dont fail when gtk2 is installed, be verbose
strace: unbreak with recent kernel headers
bump kernel-headers to 3.12.6-1