I had that problem for a while. You need to install teh libg++ or libgcc files. ( ithink it's libgcc.) A fudge fix if to archie stdarg.h One of these places will have a Sun4 type directory, and you can get that single file from there, and put it it he crossfire/include directory. That's what I did at another asite that also had no stdard.h file. (No gcc includes installed.)