Make does not deal with backslashes very well at all. This is discussed
already in the README.W32 file, etc.
It is a known issue but one for which there is no trivial solution:
backslashes in UNIX (and make) typically are escape characters.
I will give you the same advice that the README files,
make version:
GNU Make version 3.79.1, by Richard Stallman and
Roland McGrath.
Built for Windows32
Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 95, 96,
97, 98, 99, 2000
Free Software Foundation, Inc.
operating system:
Windows 2000 Advanced Server + SP2
type of machine:
PC, CPU: Intel cel