undefined reference to `g_sequence_*'

[Stefan Kost <ensonic hora-obscura de>]

when building glib/gtk+ (into a local dir) from svn I get:
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_free'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to
`g_sequence_sort_changed_iter'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_swap'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_get_length'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_new'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_iter_next'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_insert_before'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_get_end_iter'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_iter_prev'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to
`g_sequence_iter_get_sequence'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to
`g_sequence_get_begin_iter'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_remove'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_sort_iter'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to
`g_sequence_get_iter_at_pos'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_set'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to
`g_sequence_iter_get_position'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_get'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_iter_is_end'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_foreach'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_move'
../../gtk/.libs/libgtk-x11-2.0.so: undefined reference to `g_sequence_iter_is_begin'
collect2: ld returned 1 exit status