Package: www.debian.org It would be super nice if the following request would work: http://packages.debian.org/search?searchon=contents&keywords=ios_init.cc&mode=path&suite=stable&arch=any -> return 0 results However: apt-get source libstdc++6-4.4-dbg cd gcc-4.4-4.4.7 tar xf gcc-4.4.7-dfsg.tar.xz find . -name ios_init.cc ./gcc-4.4.7/libstdc++-v3/src/ios_init.cc thanks !