Re: [PATCH v2] mingw: simplify PATH handling

> On Windows the environment variable PATH contains a semicolon-separated
> list of directories to search for, in order, when looking for the
> location of a binary to run.  get_path_split() parses it and returns an
> array of string copies, which is iterated by path_lookup(), which in
> turn passes each entry to lookup_prog().
> 
> Change lookup_prog() to take the directory name as a length-limited
> string instead of as a NUL-terminated one and parse PATH directly in
> path_lookup().  This avoids memory allocations, simplifying the code.
> 
> Helped-by: Johannes Sixt <j6t@kdbg.org>
> Signed-off-by: Rene Scharfe <l.s.r@web.de>