DAHDI and Asterisk on Centos 7 installation issues

I’ve been trying to setup a pair of machines for testing an E1 link configuration; one machine to act as the Telco and the other to act as our box. That’s the ultimate goal; currently I’m having trouble getting Asterisk and DAHDI properly installed. I’m unable to start/restart/stop Asterisk and DAHDI with systemctl start asterisk or systemctl start dahdi after installing the. Asterisk will start by running asterisk from the Linux command line and the DAHDI tools seem to work fine though. I’m going to post the output of my DAHDI build below; I can post the Asterisk one later if that would help.

DAHDI make output:

make install output:

make config output:

Output of some related console commands:

Thanks in advance,
Tommy Peel