Compile time GTK version info/define

[Derek Piper <dcpiper indiana edu>]

	Hi,

	I have run across something where building on different targets for a 
binary distribution of my C/GTK program means I have to compile against 
different versions of the GTK libraries. What define, if any, is around 
to indicate what set of features are available. i.e. is there a GTK_2_6 
define or some such thing?
	For those wondering what my problem is, my main machine is a Debian 
Sarge machine with GTK 2.6 installed. I am also wanting to produce a 
binary on a RedHat Fedora Core 3 machine that only has GTK 2.4. I've 
been able to write my application fine with only GTK 2.4 features and 
all is well. The problem came yesterday when I made a slight change and 
added a gtk_file_chooser_set_show_hidden(), which I later realized is a 
2.6 only feature. Now, it's not something critical to really NEED 2.6, 
but if you compile against 2.6 it would be nice to have. So, being able 
to 'trim out' features at compile time, or alternative code-paths would 
be useful.

	Thanks,

	Derek

--
Derek Piper - dcpiper indiana edu - (812) 856 0111
IRI 323, School of Informatics
Indiana University, Bloomington, Indiana