From 45bc50e523de3a31a9a67826ddca5937ee8ec11f Mon Sep 17 00:00:00 2001
From: Erik Parker <erik.parker@garmin.com>
Date: Mon, 21 Jun 2021 13:45:26 -0500
Subject: [PATCH] color_gcc: Check that cmd has elements in it before
 processing it.

---
 waflib/extras/color_gcc.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/waflib/extras/color_gcc.py b/waflib/extras/color_gcc.py
index b68c5ebf..09729035 100644
--- a/waflib/extras/color_gcc.py
+++ b/waflib/extras/color_gcc.py
@@ -19,7 +19,7 @@ class ColorGCCFormatter(Logs.formatter):
 			func = frame.f_code.co_name
 			if func == 'exec_command':
 				cmd = frame.f_locals.get('cmd')
-				if isinstance(cmd, list) and ('gcc' in cmd[0] or 'g++' in cmd[0]):
+				if isinstance(cmd, list) and (len(cmd) > 0) and ('gcc' in cmd[0] or 'g++' in cmd[0]):
 					lines = []
 					for line in rec.msg.splitlines():
 						if 'warning: ' in line: