Hi everyone, A conversation in one of my PRs has brought up an interesting question that I've been wondering about for a long time. In Portfiles, whenever I've had a test for `${os.major} <= xx`, I've typically always added an additional check for darwin in the front, i.e.:
if {${os.platform} eq "darwin" && ${os.major} <= xx} { I've done it that way because I basically copied what I saw from other Portfiles, and because I get gently admonished by the committers when I forget to. But I've also always wondered why it's necessary. I was under the impression that the `platforms darwin` line means that the entire Portfile is supposed to be valid only for `${os.platform} eq "darwin"`, no? (In other words, my understanding is that a line such as `platforms darwin freebsd openbsd` is meant to signify that "this Portfile is supposed to be valid for the listed platforms".) If that's not the case, then what is the purpose of `platforms darwin`? -- Jason Liu