SYNOPSIS
        string *define_include_dirs(void)

DESCRIPTION
        Return an array of string patterns giving the absolut paths
        where to search an include file. The patterns have to have a
        %s at the place where the name given in the #include statement
        has to be inserted.

EXAMPLE
        define_include_dirs() { return ({ "sys/%s", "lib/%s" }); }

HISTORY
        Dropped in 3.2.1.

SEE ALSO
        master(M)