3. How to build XAS
XAS executables are compiled and linked from source code using the xasbuild
command, which generates appropriate Makefiles and runs them. This applies only to the Unix version, and is in principle capable of dealing with XAS updates as well as with
XAS module addition by the user.
The VMS version of XAS has no general build utility, only a bootstrap script useful for
rebuilding the entire distribution from scratch could be supplied.