/bin/bash: line 0: [: -lt: unary operator expected

tree make.cross ARCH=mips All errors (new ones prefixed by >>): >> /bin/bash: line 0: [: -lt: unary operator expected --- 0-DAY kernel test infrastructureOpen Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel

/bin/bash: line 0: [: -lt: unary operator expected

(new ones prefixed by >>): >> /bin/bash: line 0: [: -lt: unary operator expected --- 0-DAY kernel test infrastructureOpen Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation .config.gz Description: Binary data