xen/build: disable default built-in rules and variables
authorDoug Goldstein <cardoe@cardoe.com>
Wed, 2 Dec 2015 14:22:56 +0000 (15:22 +0100)
committerJan Beulich <jbeulich@suse.com>
Wed, 2 Dec 2015 14:22:56 +0000 (15:22 +0100)
commit2c4f313a7e62c7e559a469d4af4c3d03c49afa43
tree9d3415177ff9ff42d438bfbbe6b6f3c27046790d
parent32225574b7b650627654326ae6fd02b1b807a25a
xen/build: disable default built-in rules and variables

Disable the built-in rules and variables from GNU make to improve
build performance and avoid awkward corner cases with the built-in
rules. Currently none of the implicit rules are used but this is helpful
to do when developing changes to the build system.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
xen/Makefile