This libgo patch fixes the time test for systems that using the recent tzdata-2016g update, which added a new zone abbreviation. Bootstrapped and ran time test on x86_64-pc-linux-gnu. Committed to mainline and GCC 6 branch.
Ian
Index: gcc/go/gofrontend/MERGE =================================================================== --- gcc/go/gofrontend/MERGE (revision 241659) +++ gcc/go/gofrontend/MERGE (working copy) @@ -1,4 +1,4 @@ -4a8df8f8622c140777996786866395448622ac3f +5ddcdfb0b2bb992a70b391ab34bf15291a514e48 The first line of this file holds the git revision number of the last merge done from the gofrontend repository. Index: libgo/go/time/time_test.go =================================================================== --- libgo/go/time/time_test.go (revision 241341) +++ libgo/go/time/time_test.go (working copy) @@ -939,8 +939,11 @@ func TestLoadFixed(t *testing.T) { // but Go and most other systems use "east is positive". // So GMT+1 corresponds to -3600 in the Go zone, not +3600. name, offset := Now().In(loc).Zone() - if name != "GMT+1" || offset != -1*60*60 { - t.Errorf("Now().In(loc).Zone() = %q, %d, want %q, %d", name, offset, "GMT+1", -1*60*60) + // The zone abbreviation is "-01" since tzdata-2016g, and "GMT+1" + // on earlier versions; we accept both. (Issue #17276). + if !(name == "GMT+1" || name == "-01") || offset != -1*60*60 { + t.Errorf("Now().In(loc).Zone() = %q, %d, want %q or %q, %d", + name, offset, "GMT+1", "-01", -1*60*60) } }