wireguard: needs 3.10+ kernel

The dependency is actually only for the kernel module (and thus on the
runtime kernel version rather than kernel headers), but as we don't know the
runtime version in kconfig and the user space part doesn't make much sense
without the kernel module this will have to do.

[Peter: extend commit message, add comment to Config.in as suggested by
	Arnout, fix off-by-one in comment text]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/package/wireguard/Config.in b/package/wireguard/Config.in
index 0321755db3776214019cd5dfb68bc7b99794f11b..fe92fd6cfcdc2f8bf94e9ed9721860c4b897c28f 100644 (file)
--- a/package/wireguard/Config.in
+++ b/package/wireguard/Config.in
@@ -1,5 +1,7 @@
 config BR2_PACKAGE_WIREGUARD
        bool "wireguard"
+       # kernel module requires 3.10+, userspace makes no sense without it
+       depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
        select BR2_PACKAGE_LIBMNL
        help
          WireGuard is an extremely simple yet fast and modern VPN
@@ -16,3 +18,6 @@ config BR2_PACKAGE_WIREGUARD
          VPN solution in the industry.
 
          https://www.wireguard.com
+
+comment "wireguard needs a toolchain w/ headers >= 3.10"
+       depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10