lstrings.C contains the following lines: #ifndef __GLIBCPP__ // The new glibstdc++-v3 has not worked out all the quirks regarding cctype // yet. So currently it failes if the to using lines below are stated. using std::tolower; using std::toupper; #endif Except for the typos :-), this fails also when using STLport (at least for me---YMMV). So maybe this could be a configure test? -- Stid