More i686-pc-cygwin woes.

[Parker, Ron]

> I force this to occur by specifying the regular "correct" stuff in
> configure and using a line like this for the 'make install':
> 
>         make tooldir=/usr install
> 
> This causes cygwin to avoid using i686-pc-cygwin directory.

Would it be better if we had our own version of autoconf that when it was
dealing with a cygwin target set tooldir appropriately?  And yes I am
volunteering.  

We could then autoconf the packages that referred to this directory and
release a new tar ball and source for those packages.  Also if a user had
complained of a third-party package that was errantly placing files in
/usr/i686-pc-cygwin, we could direct him to:

	autoconf
	./configure --prefix=/usr i686-pc-cygwin
	make
	make install

Which isn't that abnormal anyway.