[developers] ECL compilation

[Ben Waldron]

Eric Nichols wrote:
> Greetings,
>
> I can confirm this error and fix on a 32-bit platform running Ubuntu 
> Breezy
> when the libgc headers are installed. Does setting 
> --enable-boehm=included
> use the system's headers or the ones distributed with ECL?
It uses the headers included/distributed with ECL; 
'--enable-boehm=system' will grab the system's headers (I think).

- Ben