doc-src/pdfsetup.sty

more renaming of theorems from _nat to _int (corresponding to a function that
was similarly renamed some time ago

\@ifundefined{pdfoutput}{\usepackage{../url}}
{\usepackage[pdftex,a4paper,colorlinks=true]{hyperref}
  \gdef\bold#1{\textbf{\hyperpage{#1}}}}