[Buildroot] [PATCH 1/1] libv4l: disable clang

[Buildroot] [PATCH 1/1] libv4l: disable clang

[Fabrice Fontaine]

For the time being, disable clang that is used to build BPF (in-kernel
bytecode machine) protocols.
Indeed, if an old version of clang is found on the host, it could be
used to build object files with a "None" architecture which will be
rejected by support/scripts/check-bin-arch

Fixes:
 - http://autobuild.buildroot.org/results/c18fb7f1ac81496db9c3a4e91ea028a26ca600b0

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 package/libv4l/libv4l.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package/libv4l/libv4l.mk b/package/libv4l/libv4l.mk
index 4e82dea6ad..f473c03806 100644
--- a/package/libv4l/libv4l.mk
+++ b/package/libv4l/libv4l.mk
@@ -55,6 +55,10 @@ endif
 ifeq ($(BR2_PACKAGE_LIBV4L_UTILS),y)
 LIBV4L_CONF_OPTS += --enable-v4l-utils
 LIBV4L_DEPENDENCIES += $(TARGET_NLS_DEPENDENCIES)
+
+# Disable clang that is used to build BPF (in-kernel bytecode machine) protocols
+LIBV4L_CONF_ENV += ac_cv_prog_CLANG=""
+
 ifeq ($(BR2_PACKAGE_QT5BASE)$(BR2_PACKAGE_QT5BASE_GUI)$(BR2_PACKAGE_QT5BASE_WIDGETS),yyy)
 LIBV4L_CONF_OPTS += --enable-qv4l2
 LIBV4L_DEPENDENCIES += qt5base
-- 
2.17.1

[Buildroot] [PATCH 1/1] libv4l: disable clang

[Thomas Petazzoni]

Hello,

On Sat,  3 Nov 2018 15:06:09 +0100, Fabrice Fontaine wrote:
> For the time being, disable clang that is used to build BPF (in-kernel
> bytecode machine) protocols.
> Indeed, if an old version of clang is found on the host, it could be
> used to build object files with a "None" architecture which will be
> rejected by support/scripts/check-bin-arch
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/c18fb7f1ac81496db9c3a4e91ea028a26ca600b0
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
> ---
>  package/libv4l/libv4l.mk | 4 ++++
>  1 file changed, 4 insertions(+)

Applied to master, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com