Imported from libpng-1.4.0beta7.tar
diff --git a/scripts/pngw32.def b/scripts/pngw32.def
index f7583ad..1fc8f64 100644
--- a/scripts/pngw32.def
+++ b/scripts/pngw32.def
@@ -5,7 +5,7 @@
 LIBRARY
 
 EXPORTS
-;Version 1.4.0beta6
+;Version 1.4.0beta7
   png_build_grayscale_palette  @1
   png_chunk_error      @3
   png_chunk_warning      @4
@@ -221,3 +221,8 @@
   png_save_int_32 @205
   png_get_uint_31 @206
   png_set_expand_gray_1_2_4_to_8  @207
+; Added at version 1.4.0
+  png_write_sig @208
+; png_benign_error @209
+; png_benign_chunk_error @210
+; png_set_benign_error @211