[meta-xilinx] [PATCH] libmali-xlnx: inherit update-alternatives only on rw-rootfs builds

[Jean-Francois Dagenais]

update-alternatives.bbclass adds a target-ran post-inst step which
cannot work on RO rootfs systems. Thankfully an error was put in place
in poky's base image class to detect this.

With this patch, on these builds, the default lib (MALI_BACKEND_DEFAULT)
prevails as the active library. Others may be used through other tricks
if they are installed by the do_install step.

This is obviously not a perfect solution, but at least do_rootfs is
allowed to complete. Furthermore, on embedded systems, this should cover
most cases since arguably few of us bundle the multiple implementations
of libmali on a given machine.

Signed-off-by: Jean-Francois Dagenais <jeff.dagenais at gmail.com>
---
 meta-xilinx-bsp/recipes-graphics/libgles/libmali-xlnx.bb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta-xilinx-bsp/recipes-graphics/libgles/libmali-xlnx.bb b/meta-xilinx-bsp/recipes-graphics/libgles/libmali-xlnx.bb
index b37e061..af873e6 100644
--- a/meta-xilinx-bsp/recipes-graphics/libgles/libmali-xlnx.bb
+++ b/meta-xilinx-bsp/recipes-graphics/libgles/libmali-xlnx.bb
@@ -4,7 +4,8 @@ LICENSE = "Proprietary"
 LICENSE_FLAGS = "xilinx"
 LIC_FILES_CHKSUM = "file://README.md;md5=d5750ae6496dd931669b454b5aaae2cd"
 
-inherit distro_features_check update-alternatives
+inherit distro_features_check
+INHERIT += '${@bb.utils.contains("IMAGE_FEATURES", "read-only-rootfs", "", "update-alternatives", d)}'
 
 ANY_OF_DISTRO_FEATURES = "x11 fbdev wayland"
 
-- 
2.11.0