runtime: revert 6974:1f3c3696babb
I missed that environment is used during runtime setup,
well before go init() functions run. Implemented os-dependent
runtime.goenvs functions to allow for different unix, plan9 and
windows versions of environment discovery.
R=rsc, paulzhol
CC=golang-dev
https://golang.org/cl/3787046
diff --git a/src/pkg/runtime/darwin/thread.c b/src/pkg/runtime/darwin/thread.c
index 185f0ce..d69c624 100644
--- a/src/pkg/runtime/darwin/thread.c
+++ b/src/pkg/runtime/darwin/thread.c
@@ -149,6 +149,12 @@
}
void
+runtime·goenvs(void)
+{
+ runtime·goenvs_unix();
+}
+
+void
runtime·newosproc(M *m, G *g, void *stk, void (*fn)(void))
{
m->tls[0] = m->id; // so 386 asm can find it
