make[3]: Entering directory '/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/feeds/packages/net/wireguard'
make -C /build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/linux-ppc44x/linux-3.18.43 HOSTCFLAGS="-O2 -I/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/staging_dir/host/include -I/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/staging_dir/host/usr/include -I/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/staging_dir/target-powerpc_440_musl-1.1.15/host/include -Wall -Wmissing-prototypes -Wstrict-prototypes" CROSS_COMPILE="powerpc-openwrt-linux-musl-" ARCH="powerpc" KBUILD_HAVE_NLS=no KBUILD_BUILD_USER="" KBUILD_BUILD_HOST="" KBUILD_BUILD_TIMESTAMP="Wed Dec 14 17:22:39 2016" KBUILD_BUILD_VERSION="0" HOST_LOADLIBES="-L/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/staging_dir/host/lib" CONFIG_SHELL="bash" V=''  CC="ccache_cc" M="/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/src" modules
make[4]: Entering directory '/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/linux-ppc44x/linux-3.18.43'
  CC [M]  /build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/src/main.o
In file included from <command-line>:0:0:
/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/src/compat.h:11:2: error: #error "WireGuard requires Linux >= 4.1"
 #error "WireGuard requires Linux >= 4.1"
  ^
scripts/Makefile.build:257: recipe for target '/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/src/main.o' failed
make[5]: *** [/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/src/main.o] Error 1
Makefile:1382: recipe for target '_module_/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/src' failed
make[4]: *** [_module_/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/src] Error 2
make[4]: Leaving directory '/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/linux-ppc44x/linux-3.18.43'
Makefile:107: recipe for target '/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/.built' failed
make[3]: *** [/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/build_dir/target-powerpc_440_musl-1.1.15/WireGuard-0.0.20161218/.built] Error 2
make[3]: Leaving directory '/build/lede-16.12/slaves/phase2/powerpc_440/build/sdk/feeds/packages/net/wireguard'