udev 173 will not compile without glib2 (Bug #357)

Listed as an optional dependency...

checking for gperf... /usr/bin/gperf
checking linux/input.h usability... yes
checking linux/input.h presence... yes
checking for linux/input.h... yes
checking for acl_init in -lacl... yes
checking acl/libacl.h usability... yes
checking acl/libacl.h presence... yes
checking for acl/libacl.h... yes
checking for GLIB... no
configure: error: Package requirements (glib-2.0 >= 2.22.0 gobject-2.0 >= 2.22.0
) were not met:

No package 'glib-2.0' found
No package 'gobject-2.0' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables GLIB_CFLAGS
and GLIB_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
! Problem Detected !
Creating compile log /var/log/sorcery/compile/udev-173.bz2
Creating castfs debug log /var/log/sorcery/compile/udev-173.castfs.dbglog.bz2

Spells that encountered problems:
---------------------------------
udev (build)

root@smgl64:/home/tommy#