Currently, batman-adv fails to build for 4.5 kernel headers provided by Debian's make-kpkg. "make" complains with: "include/net/sch_generic.h:413:2: error: implicit declaration of function ‘G_TC_AT’ [-Werror=implicit-function-declaration]" And: "include/net/sch_generic.h:413:33: error: ‘AT_INGRESS’ undeclared (first use in this function)" The issue seems to be that make-kpkg creates two pkt_cls.h with the same include guard but differing contents, "uapi/linux/pkt_cls.h" and "linux/pkt_cls.h". The latter has its "#ifdef __KERNEL__" section stripped and therefore misses the needed defines. Depending on the include order, the batman-adv might fail. This commit provides a workaround by ensuring that the full-blown uapi variant is included first. Eventually, the issue should be fixed in make-kpkg and this commit reverted (no response from the make-kpkg Debian maintainer yet). For future reference and updates: * https://www.open-mesh.org/issues/322 Signed-off-by: Linus Lüssing &lt;linus.luessing(a)c0d3.blue&gt; --- compat.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/compat.h b/compat.h index d61a30e..8e23911 100644 --- a/compat.h +++ b/compat.h @@ -164,4 +164,13 @@ static int __batadv_interface_kill_vid(struct net_device *dev, __be16 proto,\ #endif /* < KERNEL_VERSION(4, 3, 0) */ +#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0) + +/* workaround for current issues with Debian's make-kpkg */ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0) +#include <uapi/linux/pkt_cls.h> +#endif + +#endif /* < KERNEL_VERSION(4, 6, 0) */ + #endif /* _NET_BATMAN_ADV_COMPAT_H_ */ -- 2.1.4