make[3]: Entering directory '/home/hauke/openwrt/openwrt/package/network/services/unetd'
bash: -d: invalid option
Usage:	bash [GNU long option] [option] ...
	bash [GNU long option] [option] script-file ...
GNU long options:
	--debug
	--debugger
	--dump-po-strings
	--dump-strings
	--help
	--init-file
	--login
	--noediting
	--noprofile
	--norc
	--posix
	--pretty-print
	--rcfile
	--restricted
	--verbose
	--version
Shell options:
	-ilrsD or -c command or -O shopt_option		(invocation only)
	-abefhkmnptuvxBCEHPT or -o option
bash: line 1: [: : integer expression expected
/home/hauke/openwrt/openwrt/include/bpf.mk:70: *** ERROR: LLVM/clang version too old. Minimum required: 12, found: .  Stop.
make[3]: Leaving directory '/home/hauke/openwrt/openwrt/package/network/services/unetd'
time: package/network/services/unetd/compile#0.06#0.01#0.08
    ERROR: package/network/services/unetd failed to build.
make[2]: *** [package/Makefile:116: package/network/services/unetd/compile] Error 1
make[2]: Leaving directory '/home/hauke/openwrt/openwrt'
make[1]: *** [package/Makefile:110: /home/hauke/openwrt/openwrt/staging_dir/target-x86_64-openwrt-linux-musl_musl/stamp/.package_compile] Error 2
make[1]: Leaving directory '/home/hauke/openwrt/openwrt'
make: *** [/home/hauke/openwrt/openwrt/include/toplevel.mk:231: world] Error 2