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-rw-r--r--image/jpeg.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/image/jpeg.c b/image/jpeg.c
index 8ed0ee299..41cd3db74 100644
--- a/image/jpeg.c
+++ b/image/jpeg.c
@@ -125,8 +125,11 @@ bool nsjpeg_convert(struct content *c, int w, int h)
rowstride = bitmap_get_rowstride(bitmap);
do {
+#if RGB_RED != 0 || RGB_GREEN != 1 || RGB_BLUE != 2 || RGB_PIXELSIZE != 4
int i;
+#endif
JSAMPROW scanlines[1];
+
scanlines[0] = (JSAMPROW) (pixels +
rowstride * cinfo.output_scanline);
jpeg_read_scanlines(&cinfo, scanlines, 1);