> I grabbed the 4.0.0 tarball and unpacked it on my Fedora Core 3 Intel > machine. I want to build Ada, C, C++ and Fortran. I have a prior > version of Gnat installed. > > When configuring I used > > --enable-threads=gnat > > but when the build errors off I'm told "gnat is an unknown thread > package". Hi Robert, here is how ACT build their GNAT pro compiler: $ gcc -v Reading specs from /usr/gnat/lib/gcc/i686-pc-linux-gnu/3.4.5/specs Configured with: /bonn.a/gnatmail-5_34/build-bonn/src/configure --prefix=/usr/gnat --enable-languages=c,c++,ada --disable-nls --disable-checking --disable-libada --enable-threads=posix Thread model: posix gcc version 3.4.5 20050523 (prerelease) for GNAT Pro 5.04w (20050521) It looks like the gcc docs need to be updated. All the best, Duncan.