> like I said I already do not use optimizer switches Using these configure options , you mention does not lower optimizer switches. You have to include the SETENV command I pointed you to before starting configure. >, the only thing what might > be missing is -g but I believe this would not make any difference to this > problem > >what does this error mean? that buf is invalid or is empty? It´s not certain , perhaps the binary is corrupted. Does : % man 7 signal produce anything meaningfull on your system ? M.