[syslog-ng] syslog-ng 3.8 how to get configure script

[Evan Rempel]

I wanted to start using elasticsearch 2.2 so need to start using 
syslog-ng 3.8 but there is no
configure script in the master branch.

autoconf returns a bunch of "possibly undefined macro" errors and leaves 
a non-working configure script.
autoreconf does similar things.

Can anyone give me some help on getting a working configure/make setup 
for syslog-ng 3.8

I am attempting this on Redhat 6.

Evan.