+/**
+ Return a string to be used as a prefix to a command for setting the
+ environment of the TeX engine with respect to the path \p path.
+ */
+std::string latexEnvCmdPrefix(std::string const & path);
+
+/** Replace all references to a current directory (a lonely '.' or
+ the prefix "./") in \c pathlist with \c path. Also prefixes
+ all non-absolute paths with \c path.
+*/
+std::string const replaceCurdirPath(std::string const & path, std::string const & pathlist);
+