echo 'Creating brew-patch.diff'
cat << EOF >> brew-patch.diff
diff --git a/zbar/jpeg.c b/zbar/jpeg.c
index fb566f4..d1c1fb2 100644
--- a/zbar/jpeg.c
+++ b/zbar/jpeg.c
@@ -79,8 +79,15 @@ int fill_input_buffer (j_decompress_ptr cinfo)
 void skip_input_data (j_decompress_ptr cinfo,
                       long num_bytes)
 {
-    cinfo->src->next_input_byte = NULL;
-    cinfo->src->bytes_in_buffer = 0;
+    if (num_bytes > 0) {
+        if (num_bytes < cinfo->src->bytes_in_buffer) {
+            cinfo->src->next_input_byte += num_bytes;
+            cinfo->src->bytes_in_buffer -= num_bytes;
+        }
+        else {
+            fill_input_buffer(cinfo);
+        }
+    }
 }
 
 void term_source (j_decompress_ptr cinfo)
EOF