commit 3a043c47a921ff3b9d8d3e76ff0f157863a7cdf9
author Stefan Reinauer <reinauer@chromium.org> Tue Sep 15 17:37:14 2015 -0700
committer Stefan Reinauer <stefan.reinauer@coreboot.org> Fri Oct 23 01:07:01 2015 +0200
tree 8effb6b554ec0bd8ff5315cc944a4c7abc7009f5
parent 8193b068d49478e036c0d2ed3e3f717d767eedde

cbfstool: Fix tolower() calls on Cygwin

Cygwin complains:

cbfstool.c: 1075:5 error: array subscript has type 'char' [-Werror=char-subscripts]

so add an explicit cast.

Change-Id: Ie89153518d6af2bacce3f48fc7952fee17a688dd
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/11666
Tested-by: build bot (Jenkins)
Reviewed-by: Zheng Bao <zheng.bao@amd.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

util/cbfstool/cbfstool.c

diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c
index 5d87c9f..58f8017 100644
--- a/util/cbfstool/cbfstool.c
+++ b/util/cbfstool/cbfstool.c
@@ -1219,10 +1219,10 @@
 				break;
 			case 's':
 				param.size = strtoul(optarg, &suffix, 0);
-				if (tolower(suffix[0])=='k') {
+				if (tolower((int)suffix[0])=='k') {
 					param.size *= 1024;
 				}
-				if (tolower(suffix[0])=='m') {
+				if (tolower((int)suffix[0])=='m') {
 					param.size *= 1024 * 1024;
 				}
 				break;