Hello, A lot of packages are failing with something like dynamic.cpp:(.text+0x1e): undefined reference to `dlerror' This is simply because the package does not add -ldl on GNU/Hurd (while it probably does on GNU/Linux). Fixing them should only be a matter of doing so (since build already went fine up to that final link stage). Usually simply by adding gnu* in the configure.ac or .in script. Samuel