depends_dev are dependencies of the of the developement subpackage
it does not need to be set when there is no developement subpackage

seems the maintainer variable is not set anymore when building .PKGINFO

abuild will error when the maintainer is set but is not a RFC822 address

flock(2) on an NFS mount will on the server side convert the lock to a
POSIX lock (fcntl(F_SETLK)). This means that abuild running on NFS
server and client will create different locks and they will both try
download same file at same time.

We fix this by creating a small abuild-fetch application that will
create a POSIX lock which works with NFS.

fix handling of hardlinks and symlinks.
also compress n man pages and localized man pages

This is a feature to prefix all so:* provides with a tag. This was done
so that the openjdk8 so depends would only be satisfied by openjdk8
provides and not openjdk7, which might provide same so:lib*.so file.

To use it do: sonameprefix="openjdk8:"

Sören Tempel authored Aug 14, 2015 and Natanael Copa committed Aug 17, 2015

Output a warning if those directories exist on a non-doc package.
Furthermore, check if uncompressed man pages where installed to
/usr/share/man.

Force dependency scanning when main pkg has noarch but subpackage
overrides it. We need to save the arch setting set in split func for
later if it differs from main pkg's arch in a temp file because the
splitfunc runs in a subprocess.

fixes #4491

This lets users 'apk add docs' to always pull in -doc packages.

overlapping variable names

The package should not have itself as dependency.

Fix version stripping when filtering out needed pkg-configs that are
provided from same (sub)package.

We strip version from pkg-config dependency when scanning the
subpackages.

we need to clear provides set in global scope before splitting the
subpackages so the subpackage does not inherit main packages' provides.

But at the same time, we must not clear the provides/install_if set in
the splitfunction itself.

Unexpected result will happen if subpackages inherits the provides or
install_if from main package. So we clear them.

some paths like usr/lib/../../lib/libudev.so.0.13.0 will fail to resolve
if usr/lib is does not exist, even if lib/libudev.so.0.13.0 does.

To solve thise we normalize out the ../ in path string before we try to
resolve it.