generating an unstable package on a stable system

[Marcos Mayorga Aguirre <the@drmay.net>]

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Hello & happy new year

I am trying to debianize a library (imlib3d) and I am using a stable debian 
distro.
My problem is the following:
This library depends on libgsl0 >=1.3.0, but the provided one by my apt-get is 
1.1.1

so I can't finish the ./configure script whithout error.

Is there any trick to continue without installing in my system a library 
version from unstable?
In other words: Could I generate an unstable debian package which depends on 
unstable packages already available using a stable system?

thank you

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