[devel] Addressed various issues identified by GCC, mostly signed/unsigned

and shortening problems on assignment but also a few difficult to optimize
(for GCC) loops (John Bowler).

1 files changed, 1 insertions, 1 deletions

diff --git a/pnginfo.h b/pnginfo.h
index 81e2fca70..c43454cc4 100644
--- a/pnginfo.h
+++ b/pnginfo.h
@@ -229,7 +229,7 @@ defined(PNG_READ_BACKGROUND_SUPPORTED)
  defined(PNG_HANDLE_AS_UNKNOWN_SUPPORTED)
    /* Storage for unknown chunks that the library doesn't recognize. */
    png_unknown_chunkp unknown_chunks;
-   png_size_t unknown_chunks_num;
+   int unknown_chunks_num;
 #endif
 
 #ifdef PNG_iCCP_SUPPORTED