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Beyond gtk_init_check() - how do I tell if GTK is installed?

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I've started learning how to write GTK code.  One thing I noticed is
that where gtk_init() will terminate your program if it can't find a
display, gtk_init_check() will tell you whether it succeeded and let
you use other means (e.g. curses or a text-based interface) if not.
I've written a test program that uses this technique, and it works
fine - at least as long as GTK is installed.  However, if GTK is
not installed, my program dies instantly.  I think it's because it
can't find needed dynamic libraries; however, the machine on which
I tested it belongs to someone else who's now gone, and all of my
machines already have GTK installed so I can't easily reproduce the
condition.

In a perfect world, gtk_init_check() would contain enough statically
linked code that it could test for the presence of the GTK libraries
and return an appropriate error if they're absent.  But I guess I'll
have to settle for some sort of programmatic test for the existence
of these libraries that won't nuke my program if they're not there.

Is there a way to do this?  Can I coax the system to start executing
my program and not insist on the presence of dynamic libraries before
I need them, so I can check whether they're available?  And how can I
check whether they're available?

aTdHvAaNnKcSe for any advice...

-- 
/~\  cgibbs@kltpzyxm.invalid (Charlie Gibbs)
\ /  I'm really at ac.dekanfrus if you read it the right way.
 X   Top-posted messages will probably be ignored.  See RFC1855.
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Beyond gtk_init_check() - how do I tell if GTK is installed? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-01 06:43 +0000
  Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Richard Kettlewell <rjk@greenend.org.uk> - 2015-10-01 09:30 +0100
    Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-01 18:00 +0000
      Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Richard Kettlewell <rjk@greenend.org.uk> - 2015-10-01 19:36 +0100
        Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-01 23:39 +0000
          Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2015-10-01 19:27 -0600
            Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-02 16:50 +0000
          Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Richard Kettlewell <rjk@greenend.org.uk> - 2015-10-02 09:27 +0100
            Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-02 16:50 +0000
  Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Jerry Peters <jerry@example.invalid> - 2015-10-01 20:12 +0000
    Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-01 23:39 +0000
      Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Jasen Betts <jasen@xnet.co.nz> - 2015-10-02 19:52 +0000
        Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-02 20:13 +0000
      Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Jerry Peters <jerry@example.invalid> - 2015-10-02 20:08 +0000
  Re: Beyond gtk_init_check() - how do I tell if GTK is installed? Jasen Betts <jasen@xnet.co.nz> - 2015-10-02 19:38 +0000

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