Avldb can be build using GNU auto-tools or cmake .
Avldb can be compiled in the source directory but this option is deprecated. The preferred way is build it in a separate build directory. For example, if you have unpacked/checkout avldb directory tree to '/usr/src/avldb', create a directory `/usr/src/avldb-build' to put the object files in. This allows removing the whole build directory in case an error occurs, which is the safest way to get a fresh start and should always be done.