/usr/bin/gdlib-config is owned by package: gd-devel

Install that with yum, and it should work as to _that_ test.

I already did install that.

see:

rpm -qa | grep gd

gd-devel-2.0.28-5.4E

gd-progs-2.0.28-5.4E

gdbm-1.8.0-24

sysklogd-1.4.1-26_EL

gd-2.0.28-5.4E

php-gd-4.3.9-3.22.9