build: speed up kernel symbol export stripping
authorFelix Fietkau <nbd@openwrt.org>
Sat, 14 Dec 2013 13:14:44 +0000 (13:14 +0000)
committerFelix Fietkau <nbd@openwrt.org>
Sat, 14 Dec 2013 13:14:44 +0000 (13:14 +0000)
commit4f4db4e5cf1c949dd224eb49eecbcd26ac820626
treebab58f2c6627a33833dfe5fc3f83c7b53be383c7
parent264fc7aa3c754e13712e70cad4ac0ec8662d9da2
build: speed up kernel symbol export stripping

GNU grep has a high per-expression setup overhead when compiling regular
expressions. Use -F to force it to interpret the input as fixed strings,
which is much faster (fraction of a second instead of multiple minutes).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 39049
include/kernel-build.mk