print/pdflib -> print/pdflib4

[Edwin Groothuis]

Greetings,

I've updated the Makefiles of the following ports because of a
change in print/pdflib:

Changed print/pdflib -> print/pdflib4 in
    chinese/bg5pdf
    lang/pike72
    lang/pike74
    math/gnuplot
    math/grace
    print/ruby-pdflib
    print/axpoint

Changed pdf.4 to pdf.5 in
    www/mod_php4

If you want to modify the ports to use print/pdflib (which is now
version 5 with libpdf.so.5), please submit a PR, Cc me on it and I
will fix it at the earliest convenience.

Edwin

-- 
Edwin Groothuis      |            Personal website: http://www.mavetju.org
edwin at freebsd.org    |    Weblog: http://www.mavetju.org/weblog/weblog.php