runtime/cgo: move TMPDIR magic out of os

It's not clear this really belongs anywhere at all,
but this is a better place for it than package os.
This way package os can avoid importing "C".

Fixes #10455.

Change-Id: Ibe321a93bf26f478951c3a067d75e22f3d967eb7
Reviewed-on: https://go-review.googlesource.com/12574
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>

diff --git a/src/os/file_darwin.go b/src/runtime/cgo/tmpdir_darwin.go
similarity index 98%
rename from src/os/file_darwin.go
rename to src/runtime/cgo/tmpdir_darwin.go
index ee3a954683a318d3d57ac00b4a9ea3c01cbf1c8d..1239c70de997dd93a59bf6d3d9cc126bffbc5392 100644 (file)
--- a/src/os/file_darwin.go
+++ b/src/runtime/cgo/tmpdir_darwin.go
@@ -4,7 +4,7 @@
 
 // +build arm arm64
 
-package os
+package cgo
 
 /*
 #cgo CFLAGS: -x objective-c