HP SunSoft Pascal 4.0 - Manual (Page 287)

Pascal Preprocessor 263
A
The %slibrary Directive
cppas treats %slibrar y in the same manner as the %include directive. See
“The %include Directive” on page 259.
The %var Directive
The %var directive defines conditional variables for the preprocessor.
Syntax
%var var1 ..., varN
Comments
A conditional variable is defined when it appears in a %var directive;
otherwise, it is undefined.
Example
See the example under “The %config Directive” on page 247.
The %warning Directive
The %warning directive instructs pc to print a string on the standard output
as a compiler warning.
Syntax
%warning ' string '
Comments
pc produces an object file.