How about commiting this changeset?

[John W. Eaton]

On 12-Nov-2008, Michael Goffioul wrote:

| http://hg.tw-math.de/octave-graphics-mq/file/835983eae74b/support_cpp_scripts
| 
| This enables (only under MSVC) the compilation of C++ versions
| of mkoctfile, octave-bug and octave-config.

It's OK with me, but should we maybe use some variable other than
EXEEXT to decide whether to build the C++ versions of these programs?

jwe