As of the latest Xcode/SDK it’s no longer possible to link 32 bit binaries;
jb@kvin:~/g/s/g/s/syncthing $ CGO_ENABLED=1 go run build.go -goarch 386 build runtime/cgo # runtime/cgo ld: warning: The i386 architecture is deprecated for macOS (remove from the Xcode build setting: ARCHS) ld: warning: ignoring file /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/lib/libpthread.tbd, missing required architecture i386 in file /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/lib/libpthread.tbd ld: warning: ignoring file /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/lib/libSystem.tbd, missing required architecture i386 in file /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/lib/libSystem.tbd Undefined symbols for architecture i386: "___stack_chk_fail", referenced from: _x_cgo_init in _x004.o __cgo_sys_thread_start in _x004.o "___stack_chk_guard", referenced from: _x_cgo_init in _x004.o __cgo_sys_thread_start in _x004.o ... lots more symbols here
I’ve changed the build server to not use CGO. As a result, at least, file system watching no longer works. DNS and HTTPS appears to work, but I wouldn’t be surprised if there’s hidden wonkyness (the resolver and CA bundle are things that have historically required CGO).
So if the next release doesn’t work well, y’all know why.
Well, all twelve of you on darwin-386, that is.