Handle varalias chains, custom variables in #'user-variable-p. src/ChangeLog addition: 2008-08-23 Aidan Kehoe <kehoea@parhasard.net> * eval.c (Fuser_variable_p): Moved to symbols.c * symbols.c (Fcustom_variable_p): Moved here from custom.el. (user_variable_alias_check_fun): Mapper function used in `user-variable-p'. (Fuser_variable_p): Moved here from eval.c, to allow it to examine the variable alias chain. Expanded to check each entry in the variable alias chain for signs of being a user variable; documentation updated, noting the differences between GNU's behaviour and ours (ours is a little more sensible) (map_varalias_chain): New. Given a C function, call it at least once for each symbol in a symbol's varalias chain, signalling an error if there's a cycle, and returning immediately if the function returns something other than Qzero. (Fdefvaralias): Correct the use of the word "alias" in the docstring and in the argument name. Motivate this in a comment. Add support for a DOCSTRING argument, something GNU has too, and document this * gc.c (vars_of_gc): Start the docstring of `garbage-collection-messages' with an asterisk, to indicate that it's a user variable. lisp/ChangeLog addition: 2008-08-23 Aidan Kehoe <kehoea@parhasard.net> * custom.el: Move #'custom-variable-p to C, since it's now called from #'user-variable-p.

#!/usr/bin/perl

while (<>)
{
    if (/\\$/)
    {
        chop;
        $foo .= $_;
    }
    else
    {
        @foo = split (/[ \\:]+/, $foo);
        $filename = $foo[0];
	if (($filename =~ /^unex/) ||
	    ($filename =~ /^sgiplay/) ||
	    ($filename =~ /^Extern/) ||
	    ($filename =~ /^extw/))
	{
	    $foo = "";
	    next;
	}
        @foo = grep (!/\.c$/, @foo);
        @foo = grep ((s/\/.*lwlib\//\$(LWLIBSRCDIR)\//, 1), @foo);
        @foo = grep (!/lisp\.h/, @foo);
	@foo = grep (!/lisp\.h/, @foo);
	@foo = grep (!/lisp-union\.h/, @foo);
	@foo = grep (!/lisp-disunion\.h/, @foo);
	@foo = grep (!/lrecord\.h/, @foo);
	@foo = grep (!/emacsfns\.h/, @foo);
	@foo = grep (!/symeval\.h/, @foo);
	@foo = grep (!/symsinit\.h/, @foo);
	@foo = grep (!/syssignal\.h/, @foo);
	@foo = grep (!/intl\.h/, @foo);
	@foo = grep (!/tt_c\.h/, @foo);
	@foo = grep (!/descrip\.h/, @foo);
        shift @foo;
        foreach $i (0 .. $#foo)
	{
            $foo[$i] = $filename . ": " . $foo[$i];
	}
	print $filename . ": config.h\n";
        print join ("\n", @foo);
        print "\n";
        $foo = "";
    }
}