uuid extension not available

Hi

I have postgresql 9.2 installed on red hat linux 6.4 . I need to generate uuids using the uuid_generate_v4() function.

 

select * from pg_available_extensions does not list this extension. The only extension that is available is plpgsql.

 

I find uuid libraries, libuuid.so.1 and libuuid.so.1.3.0 in /lib64 folder.

 

What should I do next ? How can I can install this extension ?

 

Thanks,

Thara.