doesnt compile on arch xu4

[sirus20x6]

[root@alarm rtl8812au]# make
make ARCH=armv7l CROSS_COMPILE= -C /lib/modules/4.14.107-1-ARCH/build M=/home/alarm/git/rtl8812au modules
make[1]: *** /lib/modules/4.14.107-1-ARCH/build: No such file or directory. Stop.
make: *** [Makefile:1264: modules] Error 2
[root@alarm rtl8812au]# mkdir /lib/modules/4.14.107-1-ARCH/build
[root@alarm rtl8812au]# make
make ARCH=armv7l CROSS_COMPILE= -C /lib/modules/4.14.107-1-ARCH/build M=/home/alarm/git/rtl8812au modules
make[1]: Entering directory '/usr/lib/modules/4.14.107-1-ARCH/build'
make[1]: *** No rule to make target 'modules'. Stop.
make[1]: Leaving directory '/usr/lib/modules/4.14.107-1-ARCH/build'
make: *** [Makefile:1264: modules] Error 2
[root@alarm rtl8812au]# ls /usr/lib/modules/4.14.107-1-ARCH/
build kernel modules.alias.bin modules.builtin.bin modules.dep.bin modules.order modules.symbols
extramodules modules.alias modules.builtin modules.dep modules.devname modules.softdep modules.symbols.bin