I tried to build the gcc-4.8-4.8.2-20 and the build is broken. libstdc++ and lib64stdc++ are not build, neither are build libgcc1.
The last good build (with the missing libraries) is 4.8.2-16.
Something broken on -20 and -21.
Oh, I see what you're saying. I get lib64stdc++-dev / libstdc++-dev, but not the base lib64stdc++/libstdc++
And yeah, libgcc1 just isn't built, which is a major problem. Maybe we need to look at diffs in the "debian" directory.