const have_sigwinch = switch (builtin.os.tag)
const have_sigwinch = switch (builtin.os.tag) { .linux, .plan9, .illumos, .netbsd, .openbsd, .haiku, .driverkit, .ios, .maccatalyst, .macos, .tvos, .visionos, .watchos, .dragonfly, .freebsd, .serenity, => true, else => false, }