[Pacemaker] Package requirements (libqb) were not met。

[Mars gu]

Hi，
   I tried to install corosync-2.0.1.
   When I executed this,an error came out.
   I can‘t find libqb RPM  in centeros6.2 or  rhel6.2.
  where is it ?
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[root at h10_150 corosync-2.0.1]# ./configre
…………
No package 'libqb' found
 checking for LIBQB... configure: error: Package requirements (libqb) were not met:
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