...

diff --git a/coders/png.c b/coders/png.c
index bccf5445978277750ab515584b335878e4034ade..630829ee825f39435372bff379adc683ee234fc9 100644 (file)
--- a/coders/png.c
+++ b/coders/png.c
@@ -3712,7 +3712,7 @@ static Image *ReadOnePNGImage(MngInfo *mng_info,
           break;
         for (x=0; x < (ssize_t) image->columns; x++)
         {
-          int index=ConstrainColormapIndex(image,(ssize_t) *r,exception);
+          ssize_t index=ConstrainColormapIndex(image,(ssize_t) *r,exception);
           SetPixelRed(image,ClampToQuantum(image->colormap[index].red),q);
           SetPixelGreen(image,ClampToQuantum(image->colormap[index].green),q);
           SetPixelBlue(image,ClampToQuantum(image->colormap[index].blue),q);