From 66d8899aa7e17223276b279f10853ef5fb2a4ea0 Mon Sep 17 00:00:00 2001
From: Ayke van Laethem <aykevanlaethem@gmail.com>
Date: Mon, 8 Jul 2019 00:18:40 +0200
Subject: [PATCH] main: set the current working directory when calling an
 external linker

In particular, while LLVM lld supports -L for linker scripts imported
with the `INCLUDE` command, GNU ld does not seem to support this.

This is a prerequisite for supporting the HiFive1 board in the TinyGo
Playground.
---
 linker-builtin.go  | 1 +
 linker-external.go | 1 +
 2 files changed, 2 insertions(+)

diff --git a/linker-builtin.go b/linker-builtin.go
index d0a01681..f11d5686 100644
--- a/linker-builtin.go
+++ b/linker-builtin.go
@@ -63,6 +63,7 @@ func Link(linker string, flags ...string) error {
 		cmd := exec.Command(linker, flags...)
 		cmd.Stdout = os.Stdout
 		cmd.Stderr = os.Stderr
+		cmd.Dir = sourceDir()
 		return cmd.Run()
 	}
 }
diff --git a/linker-external.go b/linker-external.go
index 48e4d2ec..f114b39b 100644
--- a/linker-external.go
+++ b/linker-external.go
@@ -20,5 +20,6 @@ func Link(linker string, flags ...string) error {
 	cmd := exec.Command(linker, flags...)
 	cmd.Stdout = os.Stdout
 	cmd.Stderr = os.Stderr
+	cmd.Dir = sourceDir()
 	return cmd.Run()
 }