The latest version of MAME has been compiled for Raspberry Pi and macOS and is available from the download widget on the home page.
This will be the last MAME release that I will be compiling for Raspberry Pi. It now takes fully two days to build on a Pi3+, only gets a few downloads a month and is so slow that it’s unusable for all but the simplest emulation tasks. I cannot justify tying up my system building it any longer.
On the plus side, this means the macOS release will be available much sooner!