[CentOS] libpq.so.4 missing

Anyone else seeing this when trying to install httpd?  My mirror is completely up to date and the machine is a fresh install of CentOS 5.6

Loaded plugins: fastestmirror, priorities
Loading mirror speeds from cached hostfile
Excluding Packages from CentOS-5 - Base
Finished
Excluding Packages from CentOS-5 - Updates
Finished
7 packages excluded due to repository priority protections
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package httpd.x86_64 0:2.2.3-45.el5.centos set to be updated
NSG/filelists                                                                                                                                                                                                                                                                                         | 157 kB     00:00
addons/filelists                                                                                                                                                                                                                                                                                      |  197 B     00:00
adobe-linux/filelists                                                                                                                                                                                                                                                                                 | 140 kB     00:00
base/filelists_db                                                                                                                                                                                                                                                                                     | 4.0 MB     00:00
extras/filelists_db                                                                                                                                                                                                                                                                                   | 225 kB     00:00
updates/filelists_db                                                                                                                                                                                                                                                                                  | 1.5 MB     00:00
--> Processing Dependency: libaprutil-1.so.0()(64bit) for package: httpd
--> Processing Dependency: libapr-1.so.0()(64bit) for package: httpd
--> Running transaction check
---> Package apr.x86_64 0:1.2.7-11.el5_5.3 set to be updated
---> Package apr-util.x86_64 0:1.2.7-11.el5_5.2 set to be updated
--> Processing Dependency: libpq.so.4()(64bit) for package: apr-util
--> Finished Dependency Resolution
apr-util-1.2.7-11.el5_5.2.x86_64 from base has depsolving problems
  --> Missing Dependency: libpq.so.4()(64bit) is needed by package apr-util-1.2.7-11.el5_5.2.x86_64 (base)
Error: Missing Dependency: libpq.so.4()(64bit) is needed by package apr-util-1.2.7-11.el5_5.2.x86_64 (base)
 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


-- 
James A. Peltier
IT Services - Research Computing Group
Simon Fraser University - Burnaby Campus
Phone   : 778-782-6573
Fax     : 778-782-3045
E-Mail  : jpeltier at sfu.ca
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          http://blogs.sfu.ca/people/jpeltier