Further adventures in attempting to install Underworld 1.2 on Wexstan.
Previous instruction for installing Mesa largely work, but with the following exceptions.
Use a new directory name and run the configuration as modified...
mkdir -p /usr/local/mesa/7.4
... and discover a new and interesting failure.
checking for LIBDRM... configure: error: Package requirements (libdrm >= 2.4.3) were not met: