Snippets for mpdscribble 0.26 from Alpine riscv64

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-riscv64/community/mpdscribble/mpdscribble-0.26-r0.log.

• ../src/util/Manual.hxx:70:38: warning: cast from 'std::byte*' to 'Manual<SignalMonitor>::pointer' {aka 'SignalMonitor*'} increases required alignment of target type [-Wcast-align]
     70 |                 return *std::launder(reinterpret_cast<pointer>(data));
        |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~