RE: [PATCH 05/15] kbuild: build init/built-in.a just once

[David Laight <David.Laight@xxxxxxxxxx>]

...
> > +VERSION=$(cat .version) 2>/dev/null &&
> > +VERSION=$(expr $VERSION + 1) 2>/dev/null ||
> > +VERSION=1

What's wrong with:
VERSION=$(($(cat .version 2>/dev/null) + 1))

If you are worried about .version not containing a valid
number and $((...)) failing then use ${VERSION:-1} later.

	David

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