ar71xx: fix mtdpartsize macro in image Makefile (#14961)
authorjow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Thu, 13 Feb 2014 21:19:00 +0000 (21:19 +0000)
committerjow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Thu, 13 Feb 2014 21:19:00 +0000 (21:19 +0000)
commit460d0bf686dd0ec96269bdf13f83d8a1e62e9ba7
treec1ec7bfba60af681ffe461650c37d43293251bf4
parent340b5931de182bbeb9715f956e6146e0bc85811b
ar71xx: fix mtdpartsize macro in image Makefile (#14961)

The mtdpartsize macro triggers shell errors on various Linux distributions
when the partname argument $(1) does not appear within the partmap $(2).

Change the sed pattern to only emit anything if a successful substitution
occured and only evaluate the arithmetic expression if something was printed
by the sed program.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39583 3c298f89-4303-0410-b956-a3cf2f4a3e73
target/linux/ar71xx/image/Makefile