diff -Nru hugin-2010.0.0.orig//src/foreign/vigra/vigra_impex/png.cxx hugin-2010.0.0/src/foreign/vigra/vigra_impex/png.cxx
--- hugin-2010.0.0.orig//src/foreign/vigra/vigra_impex/png.cxx	2010-03-03 00:17:21.000000000 +0100
+++ hugin-2010.0.0/src/foreign/vigra/vigra_impex/png.cxx	2010-10-27 19:21:34.753678338 +0200
@@ -271,8 +271,8 @@
         // expand gray values to at least one byte size
         if ( color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8 ) {
             if (setjmp(png->jmpbuf))
-                vigra_postcondition( false,png_error_message.insert(0, "error in png_set_gray_1_2_4_to_8(): ").c_str());
-            png_set_gray_1_2_4_to_8(png);
+                vigra_postcondition( false,png_error_message.insert(0, "error in png_set_expand_gray_1_2_4_to_8(): ").c_str());
+            png_set_expand_gray_1_2_4_to_8(png);
             bit_depth = 8;
         }