[Wien] force exit upon compile error in siteconfig

[Fred Nastos]

Hi,

A scripting question.

In the siteconfig script when one tries to compile all the programs if
one of the programs doesn't compile (say lapw1 for example) the script
continues working, trying to compile the next program and so on.  This
behaviour has some obvious benefits, but does anyone know how to
make the script siteconfig exit, or stop attempting to compile, if one of
the programs doesn't compile.

Thanks much,

Fred