Why I can't make zImage!

[tewinson liu]

Hi :     I'm working with an mips embbed linux system. I download  sources from the Internet(for mips).     After I  make xconfig ,make dep and make clean. I put the command of make zImage but the gcc said it can't know the compile command for mips  . Would I recompile the gcc or it is because of other thing . Can anybody help me?  Tewinson   2000.3.30 .