%
% Font handling that you probably want to use everywhere.
%
+\ifx\havemjofont\undefined
+\def\havemjofont{1}
+
% Allow arbitrary font sizes (prevents pdflatex warnings).
\usepackage{lmodern}
\usepackage[utf8]{inputenc}
% Grab the AMS fonts, too, for things like \mathbb.
-\usepackage{amsfonts}
+\ifx\mathbb\undefined
+ \usepackage{amsfonts}
+\fi
+
+\fi