On 21/02/2021 13.47, firstname.lastname@example.org wrote:
Rust doesn't keep any user from building Rust for Tier 2 or Tier 3 platforms. There is no separate configure guard. All platforms that Rust can build for, are always enabled by default. No one in Rust keeps anyone from cross-compiling code for sparc64 or powerpcspe, for example.
So if you want to copy Rust's mechanism, you should just leave it as is and not claim that users are being confused because "m68k" shows up in configure.ac.
A --enable-unstable-platforms configure flag is my peace offer to meet you half way. You get a simple way to enable builds on untested platforms and we can clearly communicate that some OS and hardware platforms are not supported.