Add simple mechanism to specify version-based extra CFLAGS

Platform files can specify extra CFLAGS by extending the kcflags
environment variable. When a kernel tree for a platform contains both
BSP and mainline branches, different CFLAGS may be needed, as BSPs are
usually littered with warnings. Make it possible to specify extra CFLAGS
per kernel version through a new extra_kcflags array.

This mechanism can be extended later if needed by storing version
comparison strings as array keys (e.g. "<=4.19").

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

0 files changed, 0 insertions, 0 deletions