From d3a2dcf5a88354ffcfe1f445caf0b579840b043a Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Thu, 26 Aug 2010 18:47:34 -0400
Subject: [PATCH] build: fix cgo with -j2

a b: c expands to multiple rules,
which then run in parallel.

R=r, iant
CC=golang-dev
https://golang.org/cl/2007047
---
 src/Make.pkg | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/Make.pkg b/src/Make.pkg
index 239820b152..1f5f2823b9 100644
--- a/src/Make.pkg
+++ b/src/Make.pkg
@@ -102,14 +102,11 @@ dir:
 #	x.cgo2.c	- C implementations compiled with gcc to create a dynamic library
 #
 
-_cgo_defun.c _cgo_gotypes.go _cgo_export.c _cgo_export.h: $(CGOFILES)
+_cgo_defun.c: $(CGOFILES)
 	CGOPKGPATH=$(dir) cgo -- $(CGO_CFLAGS) $(CGOFILES)
 
 # Ugly but necessary
-%.cgo1.go: _cgo_defun.c _cgo_gotypes.go
-	@true
-
-%.cgo2.c: _cgo_defun.c _cgo_gotypes.go
+_cgo_gotypes.go _cgo_export.c _cgo_export.h %.cgo1.go %.cgo2.c: _cgo_defun.c
 	@true
 
 %.cgo2.o: %.cgo2.c
-- 
2.50.0