From d5e11fa19b6b4ef53f2c5106c1c1c6d8e50358b3 Mon Sep 17 00:00:00 2001
From: Ayke van Laethem <aykevanlaethem@gmail.com>
Date: Tue, 14 Jan 2020 13:41:10 +0100
Subject: [PATCH] compiler: do not emit debug info for extern globals

This results in a link error in the following commit (undefined
reference to runtime.trackedGlobalsBitmap from .debug_info). Solution:
don't emit debug info for declared but not defined symbols.
---
 compiler/symbol.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/symbol.go b/compiler/symbol.go
index c5a4183f..ae853f18 100644
--- a/compiler/symbol.go
+++ b/compiler/symbol.go
@@ -82,7 +82,7 @@ func (c *Compiler) getGlobal(g *ssa.Global) llvm.Value {
 			}
 		}
 
-		if c.Debug() {
+		if c.Debug() && !info.extern {
 			// Add debug info.
 			// TODO: this should be done for every global in the program, not just
 			// the ones that are referenced from some code.