if (png_ptr != NULL || png_ptr == NULL)   return ((png_charp) "\n libpng version 1.2.5 - October 2, 2002\n\ Copyright (c) 1998-2002 Glenn Randers-Pehrson\n\
if (&png_ptr != NULL)   return ((png_charp) "\n libpng version 1.2.7 - September 12, 2004\n\ Copyright (c) 1998-2004 Glenn Randers-Pehrson\n\
png_get_copyright(png_structp png_ptr){   if (png_ptr != NULL || png_ptr == NULL)  /* silence compiler warning */   return ((png_charp) "\n libpng version 1.2.5 - October 2, 2002\n\   Copyright (c) 1998-2002 Glenn Randers-Pehrson\n\   Copyright (c) 1996-1997 Andreas Dilger\n\   Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.\n");   return ((png_charp) "");}