BUG #7857: postgresql91-libs fails to create ld.so.conf.d symlink

The following bug has been logged on the website:

Bug reference: 7857
Logged by: Chris Meisinger
Email address: chris(dot)meisinger(at)centro(dot)net
PostgreSQL version: 9.1.8
Operating system: CentOS 6.3
Description:

1. Provision a fresh machine (CentOS 6)
2. Perform a yum update of the core OS.
3. Install PGDG Rpm via 'curl -O
http://yum.postgresql.org/9.1/redhat/rhel-6-i386/pgdg-centos91-9.1-4.noarch.rpm'
following the directions
4. 'yum -y install postgresql91 postgresql91-libs postgresql91-devel'
5. Note that running 'psql' via CLI generates the following error 'psql:
error while loading shared libraries: libpq.so.5: cannot open shared object
file: No such file or directory'
6. Note that the appropriate symlinks are not being created in
/etc/ld.so.conf.d/ as in the past for inclusion of /usr/pgsql-9.1/ into the
default search path for libraries.

Older Cent 5 installations have the symlinking as follows...

in /etc/alternatives....
lrwxrwxrwx 1 root root 45 Jan 8 15:29 pgsql-ld-conf ->
/usr/pgsql-9.1/share/postgresql-9.1-libs.conf
with /etc/ld.so.conf.d/postgresql-pgdg-libs.conf being a symlink to
/etc/alternatives/pgsql-ld-conf

Creating the symlink manually and running 'ldconfig' will correct the
issue.

Only affects new/fresh installations.