mixed include_file (string file, string compiled_file, int sys_include)
Generate the pathname of an included file.
previous_object(): The object causing the compile.
file : The name given in the #include directive.
compiled_file : The object file which is just compiled.
(compat: name given without leading "/")
sys_include : TRUE for #include <> directives.
0: use the normal include filename generation (""-includes are
used as they are, <>-includes are handled according to
<path>: the full absolute pathname of the file to include,
without parentdir parts ("/../"). Leading slashes ("/")
may be omitted.
else: The include directive is not legal.
If the function does not generate a valid pathname, the driver
will next try to resolve the include using the H_INCLUDE_DIRS hook.
Introduced in LDMud 3.2.8.
hooks(C), inherit_file(M), include_dirs(H)