Then or otherwise, do:
- $ ./configure --prefix=/opt/local --with-readline=/opt/local --disable-strict --disable-x11 --with-srtp=/opt/local --with-gsm=/opt/local --enable-zrtp && make
+ $ ./configure --prefix=/opt/local --with-readline=/opt/local --disable-x11 --with-srtp=/opt/local --with-gsm=/opt/local --enable-zrtp && make
Install to /opt/local