Those macros allow testing various commands on the host system, also process the
prereq tests in the order they're declared.
Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44269 3c298f89-4303-0410-b956-a3cf2f4a3e73