[Dovecot] Dovecot 2.2 build rpm on Centos6

Hi list,

I tried to build rpm based on dovecot-2.2.2-2.fc20.src.rpm on Centos 6.4

rpmbuild --define 'rhel 64' -ba dovecot-2.2.spec

I get this error:

checking for C compiler default output file name... configure: error: in /home/builder/rpmbuild/BUILD/dovecot-2.2.2': configure: error: C compiler cannot create executables See config.log' for more details.

(config.log attached)

What I missing?

I'm not totally beginner, built dovecot 2.1 rpm-s many times same way like this, but not know mutch about building rpms and with this I just can get to work.

Thank you!

Levi