build: ipkg: new field Alternatives
authorYousong Zhou <yszhou4tech@gmail.com>
Sun, 5 Mar 2017 08:19:46 +0000 (16:19 +0800)
committerYousong Zhou <yszhou4tech@gmail.com>
Sun, 5 Mar 2017 09:23:46 +0000 (17:23 +0800)
commitc0b5c46c9af19127e8d3a1e91de93645c9a9ffe1
tree14c66fa03332834c96a92871a87ab1722fea148e
parentf0918750abd1cd589c5683eb608954b831d9b70a
build: ipkg: new field Alternatives

It's a list of specs of the following form seprated by commas to
describe alternatives provided by this package

    <prio>:<path>:<altpath>

<path> will be a symbolic link to <altpath> of the highest <prio>

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
include/package-ipkg.mk