Also read 'bugs'.

If for any reason, S-Lang fails to compile on your system, please email me
and the problem will be resolved.

Also note that the JED distribution comes bundled with S-Lang as well (It is
a color syntax highlighting programmers editor for MSDOS, OS/2, Unix, and
VMS). JED inspired nearly every S-Lang function and, as a result, it takes
advantage of nearly every S-Lang feature.  You are encouraged to look at the
JED source code to see how S-Lang is interfaced to it.  Finally, JED makes a
nice development environment for S-lang.  JED is located in pub/jed.