From 1960aab5766d7308841f5d325292509715939527 Mon Sep 17 00:00:00 2001
From: Gregory Burd <greg@basho.com>
Date: Tue, 17 Sep 2013 14:42:47 -0400
Subject: [PATCH] Track locations of tokens across macro expansions.

---
 rebar.config | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rebar.config b/rebar.config
index fcda477..cf95fac 100644
--- a/rebar.config
+++ b/rebar.config
@@ -34,7 +34,7 @@
              ]}.
 
 {port_env, [
-    {"DRV_CFLAGS",  "$DRV_CFLAGS -O3 -fPIC -march=native -mtune=native -Wall -Wextra -Werror"}
+    {"DRV_CFLAGS",  "$DRV_CFLAGS -O3 -fPIC -march=native -mtune=native -Wall -Wextra -Werror -ftrack-macro-expansion=2"}
 ]}.
 
 % for debugging use