Imported from libpng-1.2.0beta3.tar
diff --git a/pngwutil.c b/pngwutil.c
index da31079..aff1fff 100644
--- a/pngwutil.c
+++ b/pngwutil.c
@@ -1,7 +1,7 @@
 
 /* pngwutil.c - utilities to write a PNG file
  *
- * libpng 1.2.0beta2 - May 7, 2001
+ * libpng 1.2.0beta3 - May 18, 2001
  * For conditions of distribution and use, see copyright notice in png.h
  * Copyright (c) 1998-2001 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -460,7 +460,9 @@
    png_ptr->bit_depth = (png_byte)bit_depth;
    png_ptr->color_type = (png_byte)color_type;
    png_ptr->interlaced = (png_byte)interlace_type;
+#if defined(PNG_MNG_FEATURES_SUPPORTED)
    png_ptr->filter_type = (png_byte)filter_type;
+#endif
    png_ptr->width = width;
    png_ptr->height = height;
 
@@ -1422,9 +1424,9 @@
       png_warning(png_ptr, "Unrecognized equation type for pCAL chunk");
 
    purpose_len = png_check_keyword(png_ptr, purpose, &new_purpose) + 1;
-   png_debug1(3, "pCAL purpose length = %d\n", purpose_len);
+   png_debug1(3, "pCAL purpose length = %d\n", (int)purpose_len);
    units_len = png_strlen(units) + (nparams == 0 ? 0 : 1);
-   png_debug1(3, "pCAL units length = %d\n", units_len);
+   png_debug1(3, "pCAL units length = %d\n", (int)units_len);
    total_len = purpose_len + units_len + 10;
 
    params_len = (png_uint_32p)png_malloc(png_ptr, (png_uint_32)(nparams
@@ -1439,7 +1441,7 @@
       total_len += (png_size_t)params_len[i];
    }
 
-   png_debug1(3, "pCAL total length = %d\n", total_len);
+   png_debug1(3, "pCAL total length = %d\n", (int)total_len);
    png_write_chunk_start(png_ptr, (png_bytep)png_pCAL, (png_uint_32)total_len);
    png_write_chunk_data(png_ptr, (png_bytep)new_purpose, purpose_len);
    png_save_int_32(buf, X0);
@@ -1491,7 +1493,7 @@
 #endif
    total_len = 1 + png_strlen(wbuf)+1 + png_strlen(hbuf);
 
-   png_debug1(3, "sCAL total length = %d\n", total_len);
+   png_debug1(3, "sCAL total length = %d\n", (int)total_len);
    png_write_chunk_start(png_ptr, (png_bytep)png_sCAL, (png_uint_32)total_len);
    png_write_chunk_data(png_ptr, (png_bytep)&unit, 1);
    png_write_chunk_data(png_ptr, (png_bytep)wbuf, png_strlen(wbuf)+1);