title: Convert Cygwin path to Windows path in a makefile
body: <p>How can I convert a Cygwin style path ( <code>/cygdrive/c/foo/bar</code> ) to Windows style ( <code>C:/foo/bar</code> ) (yes, with / going forward) in a GNU makefile? I have the situation of using Cygwin's make with a GCC that does <em>not</em> understand Cygwin style paths, so paths relative to the makefiles location that are produced by make are not accepted by the compiler.</p>