Tidy up some minor patch fuzz with a refresh.

Also tweak the linux makefile to make it run on macosx and linux:
install only understand -m for filemode, not that the openwrt staging
dir understands file modes.  Also glibc>2.17 so patch out the check that
otherwise barfs a number of errors from a missing 'ldd' command under
macos.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>

Massive cleanup of the shell script. Many issues were fixed.

Signed-off-by: Rosen Penev <rosenp@gmail.com>