CVS version installs itself with incorrect name

Reported a long time ago, but it bit me again so I'm re-reporting...

When I build libgd from the CVS source tree, it correctly lists
its version internally as 2.1.0

[28] gdlib-config --version
2.1.0

But it installs itself instead as
/usr/local/lib/libgd.so.2.0.0

This overwrites the previous version, which is very annoying.

disclaimer:
In fact I didn't lose my previous version in this case, because
I had manually renamed the library to libgd.so.2.0.34 so that it
could live in parallel with earlier versions.
The installation name has been broken for a long time.


-- 
Ethan A Merritt