Hi Alvin, Don't run configure in the source code directory. Create a peer build directory, run configure from the peer, ala ../gcc-4.1.0-src/configure --disable-werror --enable-bootstrap --prefix=/usr/local --enable-languages=c,c++ You'll have to rm your current (tainted) source code directory, and untar the source again. Note: the build directory doesn't have to be a peer. But it should not be the source code directory itself, nor any subdirectory thereof. HTH, --Eljay