Zhark,
fink apropos glib results in the following:
[localhost:/] Vinny% fink apropos glib
Information about 2137 packages read in 0 seconds.
glib 1.2.10-18 Common C routines used by Gtk+ and other libs
glib-shlibs 1.2.10-18 Common C routines used by Gtk+ and other libs
glib2 2.4.6-6 Handy library of utility functions
glib2-dev 2.4.6-6 Handy library of utility functions
glib2-shlibs 2.4.6-6 Handy library of utility functions
glibwww 0.2-14 Set of register/unregister functions
glibwww-shlibs 0.2-14 Set of register/unregister functions
I downloaded and installed the binaries for OS 10.3 on a G5.