The check() function is an APKBUILD overridable function which runs a testsuite.  The packages listed in
$checkdepends are packages which will be installed at build time only if check() will be run.

for patches like:
patchname.patch::http://github/.../commit/<md5hash>.patch

use strict filename instead of the whole line

use only the strongest hash. this simplifies apkbuilds a bit.

Currently, if aarch64 exists in config.guess, it is not updated.
This breaks spl, which has aarch64 entry, but not ppc64le.

update_config_guess should update config.guess if any of those
does not exists.

This is the initial patches that starts to add support for the ppc64le
platform.

required tool for re-signing packages

this is where it is built too

so we can crosscompile for different architectures

So far default_prepare() ended up in "$builddir" only if there were any
patches.  It's better to be more consistent and make such change always.

This script uses variable expansion / pattern replacement, which is not
defined in POSIX-sh. Also APKBUILDs are not required to be strictly
POSIX-sh compatible. If someone run abuild on system with e.g. dash as
/bin/sh, then it fails (and someone reported exactly that on IRC
today). Therefore abuild should explicitly use /bin/ash in shebang and
not /bin/sh.

Default is asking for each file.

this fixes cross deps such as "CHOST=armhf abuild deps"
to work properly.

if makedepends is not defined the following default
will be used (as that's the definition cross-build
aware apkbuilds use):
  makedepends="$makedepends_build $makedepends_host"

So we don't waste time installing dependencies on builder if
the host dependencies are not satisfiable.

supporting these features with cross building is non-trivial
and they do are generally not useful features, so remove them.
as result the abuildrepo is also removed to write out paths.
all package generation paths now use $REPODEST/$repo/$CARCH
which allows easily writing packages to correct $subpkgarch
in future commits.

For proper cross-build support, the subpackage arch needs to
be known before invoking the split function. This implements
a way to do that. This also changes to write the actual subpkg
arch to .PKGINFO - apk index --rewrite-arch still overwrites
index to have machine arch for noarch packages.

apkbuild-cpan: fixed error "Experimental keys on scalar is now forbidden" due to perl upgrade to 5.24 version

fixes to pick correct subpackage name when "pkg:split:arch" syntax
is used.

it's annoying flickering, and results the title being unset for
the time when last split is executed and packages are created.