Defaults problem

"Stanley Wong" <[email protected]>
Newsgroups gmane.comp.cms.opengroupware.discuss.general
Message-ID <001501c34ab3$91dbac00$3001000a@rexcapital>
I follows the step on website 
http://www.opengroupware.org/en/install/postgresql.html
 to setup the postgresql dbogo, but found problem as follow

Defaults: /lib/i686/libc.so.6: version `GLIBC_2.3' not found (required by /opt/sky
rix/system/Libraries/ix86/linux-gnu/gnu-fd-nil/libFoundation_d.so.1.0)
Defaults: /lib/i686/libc.so.6: version `GLIBC_2.3' not found (required by /opt/sky
rix/system/Libraries/ix86/linux-gnu/gnu-fd-nil/libobjc_d.so.2)


How can i fix it??    (i m using Redhat7.3, and the postgresql was installed with rh)
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