+bool operator==(AuxInfo const &, AuxInfo const &);
+bool operator!=(AuxInfo const &, AuxInfo const &);
+
+
+/**
+ * Class to run the LaTeX compiler and needed auxiliary programs.
+ * The main .tex file must be in the current directory. The current directory
+ * must not change as long as an object of this class lives.
+ * This is required by the LaTeX compiler, and we also make use of it by
+ * various support::makeAbsPath() calls.
+ */
+class LaTeX {