# test that exactly one of gc and gccgo is set
[gc] mkdir gc_true
[gccgo] mkdir gccgo_true

[gc] ! exists gccgo_true
[!gc] exists gccgo_true
[gccgo] ! exists gc_true
[!gccgo] exists gc_true

# test that go version build tags are set
[go1.1] mkdir go1.x
[go2.1] mkdir go2.x

exists go1.x
! exists go2.x

# unix should be true on Linux and MacOS, but not on Windows.
# Both platforms are tested on CI.
[unix] mkdir unix_true

[linux] exists unix_true
[darwin] exists unix_true
[windows] ! exists unix_true