From ec8f8149d270a1f9cbcec52834c4effe0fc41cc7 Mon Sep 17 00:00:00 2001
From: Andrew Gerrand <adg@golang.org>
Date: Tue, 26 Oct 2010 10:59:30 +1100
Subject: [PATCH] goinstall: display helpful message when encountering a cgo
 package.

R=rsc
CC=golang-dev
https://golang.org/cl/2701042
---
 src/cmd/goinstall/main.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/cmd/goinstall/main.go b/src/cmd/goinstall/main.go
index 07ab622af0..4e9adf5e40 100644
--- a/src/cmd/goinstall/main.go
+++ b/src/cmd/goinstall/main.go
@@ -185,6 +185,11 @@ func install(pkg, parent string) {
 		return
 	}
 	for p := range m {
+		if p == "C" {
+			fmt.Fprintf(os.Stderr, "%s: %s: cgo packages are not supported yet. Try installing manually.\n", argv0, pkg)
+			errors = true
+			return
+		}
 		install(p, pkg)
 	}
 	if pkgname == "main" {
-- 
2.50.0