gtk+

[Dennis Handly]

Here is a tool "ack" that searches: http://betterthangrep.com/

[Norman_21]

Sorry, I missed interpret your question about the search "find".
Here is the result attached.

[Dennis Handly]

>Here is the result attached.

I'm not sure why I want that. That's for you to do data reduction and come to a conclusion.
I.e. which files are uses, which are declarations and which are definitions. It is the latter we want.
A quick scan gives:
giochannel.c: g_io_add_watch
glib.h: guint g_io_add_watch
giochannel.h: guint g_io_add_watch
dx_chkpasswd_glib.c: p->io_tag = g_io_add_watch

So where is your giochannel.o or glib?