Fix -Wsign-compare warnings.

I decided to modify code in a defensive way. Ideally functions
like size() or length() should return an unsigned type.

1 files changed, 1 insertions, 1 deletions

diff --git a/modules/pvr/texture_loader_pvr.cpp b/modules/pvr/texture_loader_pvr.cpp
index 01e011e64c..82f323e8cf 100644
--- a/modules/pvr/texture_loader_pvr.cpp
+++ b/modules/pvr/texture_loader_pvr.cpp
@@ -216,7 +216,7 @@ static void _compress_pvrtc4(Image *p_img) {
 			int ofs, size, w, h;
 			img->get_mipmap_offset_size_and_dimensions(i, ofs, size, w, h);
 			Javelin::RgbaBitmap bm(w, h);
-			for (unsigned j = 0; j < size / 4; j++) {
+			for (int j = 0; j < size / 4; j++) {
 				Javelin::ColorRgba<unsigned char> *dp = bm.GetData();
 				/* red and Green colors are swapped.  */
 				new (dp) Javelin::ColorRgba<unsigned char>(r[ofs + 4 * j + 2], r[ofs + 4 * j + 1], r[ofs + 4 * j], r[ofs + 4 * j + 3]);