I just reproduced this bug on the ppc64el buildd. This is exact some error:
/usr/bin/ld: cannot find -lz http://deb1.ltc.br.ibm.com/wanna-buildd-upstream/logs/pynac_0.2.6-1_ppc64el-20140510-0908.build -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

