Cross-compiling Linux kernel for ARM on Windows using Sourcery Toolchain

Question

I am trying to cross-compile a Linux kernel for an ARM-target (Freescale i.Mx28) on a Windows host. I know that this approach is not the best one compared to using a Linux host, but unfortunately it's not up to me to decide that.

The restrictions are:

• The kernel has to be the one provided by Freescale (L2.6.35_MX28_SDK_10.12)
• It must be build using Sourcery Toolchain and CodeBench
• The whole thing must be done on Windows

I got that far, that I worked around the missing case sensitivity on Windows so that I can extract the kernel sources using Cygwin. But now I got problems with the kernel Makefile. I think there are some issues with the Windows paths as I get the error message *** multiple target patterns. Stop., which comes from the : in paths and other errors concerning the dependency check when configuring:

      HOSTCC  scripts/basic/fixdep
    /usr/bin/sh: scripts/basic/fixdep: cannot execute binary file
    make[1]: *** [scripts/basic/fixdep] Error 126
    make: *** [scripts_basic] Error 2

Is there a way to port the Makefile without having to rewrite it or is there another way to build the kernel without using the given Makefile? Can I use the sourcery toolchain or IDE to handle the Makefile? Is there a way to build the kernel within the given restrictions?