shutils/build_dependencies.sh: as suggested by Gottox, install hostmakedepends for build_style=meta too.
Merge pull request #27 from Gottox/master

Don't do globbing on v* install functions
shutils/install_files.sh: remove an extra echo in vmove()
Remove shell helpers and use them from xbps-packages instead.

All .sh files in xbps-packages/common/environment are read by the xbps-src
libexec helpers to set up the environment.

This allows contributors to extend xbps-src without modifying the xbps-src code.
Read all shell helpers from xbps-packages before setting up the sourcepkg.
Bump to v100.
libexec/xbps-src-dofetch.sh: read environment files before setup_pkg().

Otherwise vars defined on them aren't set up when the template is read.
xbps-src: install_bootstrap: remove obsolete xbps version test.
chroot/repos-remote.conf: use repo.voidlinux.eu/current as main repo.
Skip reading environment files at install/pkg phases (it's unnecessary).
shutils/chroot.sh: debian uses /run/shm, so bind mount it if exists...

... otherwise shared memory or semaphores won't work.
shutils/chroot.sh: create /{dev,run}/shm in masterdir.
Added check on asprintf return.
Merge pull request #28 from jan-schreib/master

Added check on asprintf return.
shutils/chroot.sh: do not sync repos unnecessarily.
shutils/pkgtarget.sh: reinstall the cross pkg after all deps have been built.
shutils/chroot.sh: sync repos also for the bootstrap-update target.
libexec/xbps-src-genrdeps.sh: reset subpkg vars in subpkgs.
libexec/xbps-src-dofetch.sh: use builder's main group for create_srcdir.
shutils/pkgtarget.sh: fix check_pkg_arch() to work with *-musl fake archs.