Thanks gurus, The correct link is https://sourceforge.net/projects/felyx The erros I'm getting are of this form: "mtl_specializations.cc:13157: error: ISO C++ forbids declaration of `parameter' with no type mtl_specializations.cc: In function `void mtl::mult(int)': mtl_specializations.cc:13157: error: redefinition of `void mtl::mult(int)' mtl_specializations.cc:4701: error: `void mtl::mult(int)' previously defined her e mtl_specializations.cc:13159: error: `m1' undeclared (first use this function) mtl_specializations.cc:13161: error: `v3' undeclared (first use this function) mtl_specializations.cc:13162: error: `v2' undeclared (first use this function) mtl_specializations.cc: At global scope: " The error output is HUGE. I could forward you a text file if you like TIA Abhi