DOS/Windows-specific code: exec.c and symfile.c

[Eli Zaretskii]

On Tue, 8 May 2001, Andrew Cagney wrote:

> > This snippet wants to find `foo.exe' when `foo' is being specified.
> > Should we add a #define for executable extensions (defaulting to an
> > empty string on Unix)?
> 
> Hmm, the makefile already knows about EXEEXT.

So how about adding `-DEXE_EXT=\"EXEEXT\"' to DEFS, and then testing
EXE_EXT in the sources?

Alternatively, we could modify openp to always accept an additional
parameter, which is an optional extension (or even a list of possible
extensions), and if it's non-empty, try those extensions in addition
to the original file name.  (That's what openp in Emacs does, btw.)