pg_config, ruby pg, postgresql 9.0 problem after upgrade, centos 5

Question

After upgrade postgresql 8.1 to 9.0 ive noticed issues with libraries dependency. Postgresql works fine (connection, queries).

yum list postgresql*
Installed         


        

Answer 1

$ gem --version
1.3.7

$ ruby --version
ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-linux]

$ cat /etc/redhat-release 
CentOS release 5.4 (Final)

$ uname -m
x86_64

sudo yum list installed | grep postgre    (see what you have installed)
sudo yum list available | grep postgre    (I was missing postgresql-devel)
sudo yum install postgresql-devel         (I installed it)
sudo gem install pg                       (no error this time!)

$ gem list --local | grep pg
pg (0.11.0)