commit b196bd656613850ba4fb6b1be3b27d043f3305b5
author Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Nov 03 10:50:38 2017 -0500
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Nov 03 10:50:38 2017 -0500
tree f4d37c98098f834107dd848d6ab7d8cd4ef55da0
parent 71254014116bf9c9b99a4c4b7f8dffbb400b7a46

[Libpng16] Add typecast to NULL argument to png_do_expand()

pngrtran.c

diff --git a/pngrtran.c b/pngrtran.c
index a394a54..c6b891e 100644
--- a/pngrtran.c
+++ b/pngrtran.c
@@ -4756,7 +4756,7 @@
 
          else
             png_do_expand(row_info, png_ptr->row_buf + 1,
-                NULL);
+                (png_const_color_16p)NULL);
       }
    }
 #endif