misc/cgo/test: make tests run on windows

- use proper Win64 gcc calling convention when
  calling initcgo on amd64
- increase g0 stack size to 64K on amd64 to make
  it the same as 386
- implement C.sleep
- do not use C.stat, since it is renamed to C._stat by mingw
- use fopen to implement TestErrno, since C.strtol
  always succeeds on windows
- skip TestSetEnv on windows, because os.Setenv
  sets windows process environment, while C.getenv
  inspects internal C runtime variable instead

R=golang-dev, vcc.163, rsc
CC=golang-dev
https://golang.org/cl/5500094

1 files changed, 0 insertions, 1 deletions

diff --git a/src/run.bash b/src/run.bash
index 2741637a80..8cc04a71fc 100755
--- a/src/run.bash
+++ b/src/run.bash
@@ -97,7 +97,6 @@ gomake clean
 ) || exit $?
 
 [ "$CGO_ENABLED" != 1 ] ||
-[ "$GOHOSTOS" == windows ] ||
 (xcd ../misc/cgo/test
 gomake clean
 gotest