building openwrt riscv unmatched board just, migration of 5.15 kernel to 5.10 i am getting below error any one can help plz.
make[3]: Entering directory '/home/vitthal/openwrt/kernel-5.10/package/libs/libnl-tiny'
Makefile:49: *** missing separator (did you mean TAB instead of 8 spaces?). Stop.
make[3]: Leaving directory '/home/vitthal/openwrt/kernel-5.10/package/libs/libnl-tiny'
time: package/libs/libnl-tiny/compile#0.11#0.02#0.13
ERROR: package/libs/libnl-tiny failed to build.
make[2]: *** [package/Makefile:120: package/libs/libnl-tiny/compile] Error 1
make[2]: Leaving directory '/home/vitthal/openwrt/kernel-5.10'
make[1]: *** [package/Makefile:114: /home/vitthal/openwrt/kernel-5.10/staging_dir/target-riscv64-unknown-linux-gnu_glibc/stamp/.package_compile] Error 2
make[1]: Leaving directory '/home/vitthal/openwrt/kernel-5.10'
make: *** [/home/vitthal/openwrt/kernel-5.10/include/toplevel.mk:230: world] Error 2