Troubleshooting - Liquid War 6

A quick survival guide:

Check that you have all dependencies installed. Also check their version number. Double-check that you have devel packages installed, not only run-time binaries.
Read carefully the output of ./configure.
Editing /etc/ld.so.conf and running ldconfig as root can help if some dependencies are installed in exotic places.
Check the values of the environment variables CFLAGS, LDFLAGS and LD_LIBRARY_PATH.

If none of these help, consider reporting a bug, or search the mailing-lists for help.

Here's a check-list to ensure that your installation is correct:

What was the output of make install?
Is the liquidwar6 binary in your PATH? It might be in /usr/games.
Run liquidwar6 --pedigree. Look at the output. Check the compilation date & time, the prefix, the version number.
Run liquidwar6 --show-map-dir and liquidwar6 --show-mod-dir. What does it show? Are these absolute paths? Do they exist? What's there? Normally, they should be paths which contain the version number, and be populated with sub-directories and files.

Now, game looks correctly installed, but you have problems running it.

Run the game from a terminal, not from a Gnome or KDE launcher, you need to see the console output.
Run liquidwar6 --defaults. This will reset all options to defaults.
Run liquidwar6 --test. This should run a complete test suite, many functions in the game will be tested automatically, and errors reported.
Run liquidwar6 --show-script-file. Are you really running the right code?
Game segfaults: try make uninstall && make clean && make && make install. Many problems can come from using a wrong shared module, especially with beta versions.
Game (still) segfaults: try gdb liquidwar6. Type run and watch output.
The dynamic library loader can sometimes have problemes, and does not always report explicit messages on stdout or stderr. You can change this by modifying some environment variables: export LD_DEBUG=all. This is very verbose but does help finding bugs.
Consider compiling the game using ./configure --enable-valgrind and then run it using Valgrind.
In the $HOME/.liquidwar6/ directory, you'll find two files, log.csv and dump.txt. They might contain valuable information, read them.
Try find / -type d -a -name "liquidwar6*" 2> /dev/null to ensure you don't have an old version of Liquid War 6 somewhere else...