20200929 facing "Error: unrecognized option -mfloat-abi=soft clang-12

[Los7cau53]

Build file https://github.com/Los7cau53/NeoKernel/blob/master/build.sh

facing "Error: unrecognized option -mfloat-abi=soft clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)" error
HOSTCC arch/arm64/kernel/vdso32/../../../arm/vdso/vdsomunge Assembler messages: Error: unrecognized option -mfloat-abi=soft clang-12: error: assembler command failed with exit code 1 (use -v to see invocation) make[2]: *** [../arch/arm64/kernel/vdso32/Makefile:144: arch/arm64/kernel/vdso32/sigreturn.o] Error 1 make[2]: *** Waiting for unfinished jobs.... Assembler messages: Error: unrecognized option -mfloat-abi=soft clang-12: error: assembler command failed with exit code 1 (use -v to see invocation) make[2]: *** [../arch/arm64/kernel/vdso32/Makefile:142: arch/arm64/kernel/vdso32/vgettimeofday.o] Error 1 make[1]: *** [arch/arm64/Makefile:250: vdso_prepare] Error 2 make[1]: Leaving directory '/home/zfx/kernel/sm6150-dev/android_kernel_xiaomi_sm6150/out' make: *** [Makefile:146: sub-make] Error 2