Wolfgang0815@xxxxxx wrote: > * Execute "tar xjvf gcc-4.1.1.tar.bz2" > * Execute "cd gcc-4.1.1" > * Execute "./configure --prefix=/mingw > --with-ld=/mingw/bin/ld > --enable-languages=fortran" I see two potential problems with this. One, you are always supposed to do a VPATH build when building gcc (that is, build_dir outside of -- and not even as a subdir of -- src_dir) and second, the C compiler is always required AFAIK so you should use --enable-languages=c,fortran, though the configure probably enables C anyway if not specified. But I'm not sure either of those are responsible for the failure you've encountered. I highly encourage you to take a look at the gcc-x.y.z-build.sh script for the current 3.4.5 gcc packages in the SF file release page. This tells you the configure and make steps currently used by Danny to build the existing production gcc mingw binaries. Brian