fixxes error about missing autoheader

fixes #2076

Local and remote filesystem snapshot utility
http://www.rsnapshot.org/

ref #2869

found patch:
http://git.proteanos.com/pkg/gdb.git/plain/patches/02_fix-opcodes-configure-bfd-version-on-busybox-ash.patch

fix the autoconf script to work inside aports.git. it would incorrectly
try to use the aports tag, instead of the dist file shipped .tag

Alpine Auditor - utility to track remote apkovls in a git tree and
email about changes

so we hopefully get some iconv support

ldconfig is used by some packages' install script to create the
SONAME symlinks in the DESTDIR. do those symlinks for non-system
directories.