Cannot build with libxcb 1.5

I receive the following error when trying to compile on a CentOS 6.1 machine (with libxcb 1.5):

rm -f libqxcb.so
linking ../../../../plugins/platforms/libqxcb.so
.obj/util.o: In function `adopt_atoms':
util.c:(.text+0x347): undefined reference to `xcb_discard_reply'
collect2: error: ld returned 1 exit status
make[6]: *** [../../../../plugins/platforms/libqxcb.so] Error 1

I tried using the -qt-xcb configure option, but noticed that qtbase/src/3rdparty/xcb also does not appear to have xcb_discard_reply defined.

It appears that the xcb_discard_reply symbol was not introduced into libxcb 1.6.

From a objdump -T, it appears I would have the same issue on our SUSE 11.3 machines. There is no issue on our CentOS 6.5 machines, which ship with libxcb 1.8.1.