Failed to cross-compile to openwrt 5.19.1 on ubuntu18.04

[dejavudwh]

/home/dejavudwh/lede-station-p2/staging_dir/toolchain-aarch64_generic_gcc-8.4.0_musl/include/bits/alltypes.h:363:8: error: redefinition of 'struct iovec'
 struct iovec { void *iov_base; size_t iov_len; };
        ^~~~~
In file included from ./include/linux/uio.h:11,
                 from ./include/linux/socket.h:8,
                 from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/socket.h:3,
                 from ./include/net/flow.h:11,
                 from ./include/net/net_namespace.h:15,
                 from ./include/linux/netdevice.h:38,
                 from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/netdevice.h:3,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:30,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
./include/uapi/linux/uio.h:17:8: note: originally defined here
 struct iovec
        ^~~~~
In file included from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/linux/wireless.h:28,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:46,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
/home/dejavudwh/lede-station-p2/staging_dir/toolchain-aarch64_generic_gcc-8.4.0_musl/include/sys/socket.h:22:8: error: redefinition of 'struct msghdr'
 struct msghdr {
        ^~~~~~
In file included from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/socket.h:3,
                 from ./include/net/flow.h:11,
                 from ./include/net/net_namespace.h:15,
                 from ./include/linux/netdevice.h:38,
                 from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/netdevice.h:3,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:30,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
./include/linux/socket.h:50:8: note: originally defined here
 struct msghdr {
        ^~~~~~
In file included from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/linux/wireless.h:28,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:46,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
/home/dejavudwh/lede-station-p2/staging_dir/toolchain-aarch64_generic_gcc-8.4.0_musl/include/sys/socket.h:44:8: error: redefinition of 'struct cmsghdr'
 struct cmsghdr {
        ^~~~~~~
In file included from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/socket.h:3,
                 from ./include/net/flow.h:11,
                 from ./include/net/net_namespace.h:15,
                 from ./include/linux/netdevice.h:38,
                 from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/netdevice.h:3,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:30,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
./include/linux/socket.h:96:8: note: originally defined here
 struct cmsghdr {
        ^~~~~~~
In file included from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/linux/wireless.h:28,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:46,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
/home/dejavudwh/lede-station-p2/staging_dir/toolchain-aarch64_generic_gcc-8.4.0_musl/include/sys/socket.h:74:8: error: redefinition of 'struct linger'
 struct linger {
        ^~~~~~
In file included from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/socket.h:3,
                 from ./include/net/flow.h:11,
                 from ./include/net/net_namespace.h:15,
                 from ./include/linux/netdevice.h:38,
                 from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/netdevice.h:3,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:30,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
./include/linux/socket.h:37:8: note: originally defined here
 struct linger {
        ^~~~~~
In file included from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/linux/wireless.h:28,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:46,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
/home/dejavudwh/lede-station-p2/staging_dir/toolchain-aarch64_generic_gcc-8.4.0_musl/include/sys/socket.h:369:8: error: redefinition of 'struct sockaddr'
 struct sockaddr {
        ^~~~~~~~
In file included from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/socket.h:3,
                 from ./include/net/flow.h:11,
                 from ./include/net/net_namespace.h:15,
                 from ./include/linux/netdevice.h:38,
                 from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/netdevice.h:3,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:30,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
./include/linux/socket.h:32:8: note: originally defined here
 struct sockaddr {
        ^~~~~~~~
./include/linux/socket.h:42:26: error: redefinition of 'struct __kernel_sockaddr_storage'
 #define sockaddr_storage __kernel_sockaddr_storage
                          ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./include/linux/socket.h:11,
                 from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/socket.h:3,
                 from ./include/net/flow.h:11,
                 from ./include/net/net_namespace.h:15,
                 from ./include/linux/netdevice.h:38,
                 from /home/dejavudwh/lede-station-p2/staging_dir/target-aarch64_generic_musl/usr/include/mac80211-backport/linux/netdevice.h:3,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:30,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17:
./include/uapi/linux/socket.h:16:8: note: originally defined here
 struct __kernel_sockaddr_storage {
        ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/linux/wireless.h:29,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service_linux.h:46,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/osdep_service.h:50,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/include/drv_types.h:27,
                 from /home/dejavudwh/lede-station-p2/build_dir/target-aarch64_generic_musl/linux-rockchip_armv8/rtl8821cu-2021-11-14-ef3ff121/core/rtw_cmd.c:17: