libacpi: require ACPI_BUILD_DIR to be set
authorWei Liu <wei.liu2@citrix.com>
Fri, 14 Oct 2016 17:02:31 +0000 (18:02 +0100)
committerWei Liu <wei.liu2@citrix.com>
Mon, 24 Oct 2016 17:21:33 +0000 (18:21 +0100)
commit6f9b62ca57322197e26d3b22ff11b629697142bd
tree2820d0a49515ec15f2b9a0d2933b70dd53dd03c0
parentb4ca886ab18ddcc729c1bc3d730ab078508d7ce3
libacpi: require ACPI_BUILD_DIR to be set

It's better to have a explicit error than a build failure returned by
gcc.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>
tools/libacpi/Makefile