#6 new configure.in to try

[James]

Please download it and run 'autoconf' to remake the
configure script and run 'rm config.h.in' and run
'autoheader', then try it out.

CHANGED:
1. Uses up-to-date forms of macros.
2. autodetects the FLAG and OGG libraries.
3. is easier for me to understand. :-)
4. id3lib library which is required is tested for.

I know that make runs configure again but that is a
minor nuisance. :-)

[James]

new configure.in