From 8d9c80995077820e5a4c361c739eed618513847f Mon Sep 17 00:00:00 2001
From: David Chisnall <theraven@FreeBSD.org>
Date: Wed, 14 Aug 2013 14:34:02 +0000
Subject: [PATCH] Make carets line up in dtc diagnostics if the line starts
 with a tab.

---
 usr.bin/dtc/input_buffer.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/usr.bin/dtc/input_buffer.cc b/usr.bin/dtc/input_buffer.cc
index 10b3a0018be3..8f055fe61d72 100644
--- a/usr.bin/dtc/input_buffer.cc
+++ b/usr.bin/dtc/input_buffer.cc
@@ -216,7 +216,8 @@ input_buffer::parse_error(const char *msg)
 	putc('\n', stderr);
 	for (int i=0 ; i<(cursor-line_start) ; ++i)
 	{
-		putc(' ', stderr);
+		char c = (buffer[i+line_start] == '\t') ? '\t' : ' ';
+		putc(c, stderr);
 	}
 	putc('^', stderr);
 	putc('\n', stderr);