This means adding new patches from Debian[1] and tweaking build options
that were previously set by patching Makefile.
[1] ftp://ftp.debian.org/debian/pool/main/h/heirloom-mailx/
(From OE-Core rev: 296346145bf61e3ee01ce4e1f4ccf7efe5057980)
Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>