[devel] Fixed a long-standing bug in png_handle_sPLT() when

PNG_NO_POINTER_INDEXING is defined.
diff --git a/pngrutil.c b/pngrutil.c
index c3caac7..7855241 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -1275,9 +1275,7 @@
 {
    png_bytep entry_start;
    png_sPLT_t new_palette;
-#ifdef PNG_POINTER_INDEXING_SUPPORTED
    png_sPLT_entryp pp;
-#endif
    png_uint_32 data_length;
    int entry_size, i;
    png_uint_32 skip = 0;
@@ -1442,7 +1440,7 @@
          pp[i].alpha = png_get_uint_16(entry_start); entry_start += 2;
       }
 
-      pp->frequency = png_get_uint_16(entry_start); entry_start += 2;
+      pp[i].frequency = png_get_uint_16(entry_start); entry_start += 2;
    }
 #endif