Hi, I just ran these commands: svn -q checkout svn://gcc.gnu.org/svn/gcc/trunk gcc mkdir builddir cd builddir CFLAGS="-g" ../gcc/configure --enable-languages=c,c++ --enable-checking \ --disable-bootstrap --prefix=$PWD/../prefixdir make -s make install and I got the attached compile error. Is this a known issue on an Althlon64 processor? Are there any work arounds? Thanks, Bob Rossi