build failed on i386

[ghost]

Please answer these questions before submitting your issue. Thanks!

1. What did you do?

go get github.com/pingcap/...

2. What did you expect to see?
   no error

3. What did you see instead?

# github.com/pingcap/tidb/mysql
..\.gopath\src\github.com\pingcap\tidb\mysql\const.go:500:2: constant 2147483648 overflows SQLMode
..\.gopath\src\github.com\pingcap\tidb\mysql\const.go:501:2: constant 4294967296 overflows SQLMode
..\.gopath\src\github.com\pingcap\tidb\mysql\util.go:44:19: constant 4294967295 overflows int
..\.gopath\src\github.com\pingcap\tidb\mysql\util.go:45:19: constant 4294967295 overflows int

4. What version of TiDB are you using (tidb-server -V or run select tidb_version(); on TiDB)?
   not installed yet

os: win7 x64, go: 1.9.2/386

[winoros]

@di3663 #5224 See this issue, we only provide maintenance for linux/64bit.