git clone https://github.com/dlundquist/sniproxy.git

yum groupinstall "Development Tools"
yum install autoconf automake curl gettext-devel libev-devel pcre-devel perl pkgconfig rpm-build udns-devel
cd sniproxy
./autogen.sh && ./configure && make dist
rpmbuild --define "_sourcedir `pwd`" -ba redhat/sniproxy.spec
yum install /root/rpmbuild/RPMS/x86_64/sniproxy-0.6.0+git.10.g822bb80-1.el7.x86_64.rpm
sniproxy -c /etc/sniproxy.conf

Centos 7 x86_64:
sniproxy-0.6.0+git.10.g822bb80-1.el7.x86_64.rpm.gz