Both GTK v1.0.6 and v1.1.2 required for GTK-- v0.9.18?

[Dave Corrie <d corrie dial pipex com>]

I'm trying to compile GTK-- v0.9.18, which has a configure script that (I
think) requires both versions 1.0.6 and 1.1.2 of GTK+:

- it looks for GTK+-1.0.6 during the "checking for GTK" test

- and "checking if used GNOME seems new enough" requires GTK+-1.1.2 (I
have Gnome 0.30).

How can I get versions 1.0.6 and 1.1.2 of GTK+ to reside "peacefully" on
one system?

Many thanks in advance,

Dave	:+)