minisip trunk build error

[Zach Welch]

Troy Cauble wrote:
> 
> According to this thread, it was fixed 2 years ago in the
> libtool 1.5 branch.
> 
> http://lists.gnu.org/archive/html/libtool/2004-04/msg00146.html
> 
> Peeking at the CVS ... my 1.5.6 version is *one commit* too old.
> Anything later should fix it.

Great detective work; it looks like we require libtool >= 1.5.7. I have
just added a new document (README.deps in r2503) to explain this issue.

Over time, we will expand that document to include additional tools, and
further quantify the minimum/tested versions (and their related quirks).

Cheers,

Zach