From 6763b10bf005f0bcd1ba23e440d652b31dcac447 Mon Sep 17 00:00:00 2001
From: Aaron Giles <aaron@aarongiles.com>
Date: Mon, 28 Dec 2009 09:01:46 +0000
Subject: [PATCH] Updated srcclean to remove "invisible spaces" immediately
 preceding tabs. [Atari Ace]

---
 src/tools/srcclean.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/tools/srcclean.c b/src/tools/srcclean.c
index fa10f7e1abb..8ae39181a57 100644
--- a/src/tools/srcclean.c
+++ b/src/tools/srcclean.c
@@ -195,6 +195,14 @@ int main(int argc, char *argv[])
 		{
 			int spaces = 4 - col % 4;
 
+			/* Remove invisible spaces */
+			while ((spaces & 3) != 0 && dst > 0 && modified[dst-1] == ' ')
+			{
+				removed_spaces++;
+				spaces++;
+				col--;
+				dst--;
+			}
 			col += spaces;
 
 			/* if inside a comment, expand it */