Should have been in previous commit

diff --git a/ext/gd/libgd/gd.c b/ext/gd/libgd/gd.c
index 46b085a3f7563a34b4c4f50ac048a12b1d6a6a9f..8f1d958fcdfe245c28c3131fb959c9e7a07c9253 100644 (file)
--- a/ext/gd/libgd/gd.c
+++ b/ext/gd/libgd/gd.c
@@ -3877,7 +3877,7 @@ int gdImageConvolution(gdImagePtr src, float filter[3][3], float filter_div, flo
        if (srcback==NULL) {
                return 0;
        }
-       srcback->saveAlphaFlag = 1;
+       gdImageSaveAlpha(srcback, 1);
        new_pxl = gdImageColorAllocateAlpha(srcback, 0, 0, 0, 127);
        gdImageFill(srcback, 0, 0, new_pxl;