BUG #5678: libpq.so.4 is needed for pgadmin3

The following bug has been logged online:

Bug reference:      5678
Logged by:          faz
Email address:      fazal2009@gmail.com
PostgreSQL version: 9.0
Operating system:   CentOs
Description:        libpq.so.4 is needed for pgadmin3
Details:

Hello,

While i am trying to install Pgadmin3 after Postgresql 9.0 installed, it's
always showing the following error/warning.Please help me.

Resolving Dependencies
There are unfinished transactions remaining. You might consider running
yum-complete-transaction first to finish them.
--> Running transaction check
---> Package pgadmin3.i386 0:1.8.4-1.el5.rf set to be updated
--> Processing Dependency: libpq.so.4 for package: pgadmin3
--> Finished Dependency Resolution
pgadmin3-1.8.4-1.el5.rf.i386 from rpmforge has depsolving problems
  --> Missing Dependency: libpq.so.4 is needed by package
pgadmin3-1.8.4-1.el5.rf.i386 (rpmforge)
Error: Missing Dependency: libpq.so.4 is needed by package
pgadmin3-1.8.4-1.el5.rf.i386 (rpmforge)
 You could try using --skip-broken to work around the problem
 You could try running: package-cleanup --problems
                        package-cleanup --dupes
                        rpm -Va --nofiles --nodigest


I had checked that , the libpq.so.5 is already located in the lib files of
postgresql 9.0 , but no libpq.so.4. So how can i solve this problem? someone
please help to do install pgadmin !