packages: vigra/vigra-libpng.patch (NEW) - fixes build with libpng 1.4

[megabajt]

Author: megabajt                     Date: Thu Jan 28 18:48:45 2010 GMT
Module: packages                      Tag: HEAD
---- Log message:
- fixes build with libpng 1.4

---- Files affected:
packages/vigra:
   vigra-libpng.patch (NONE -> 1.1)  (NEW)

---- Diffs:

================================================================
Index: packages/vigra/vigra-libpng.patch
diff -u /dev/null packages/vigra/vigra-libpng.patch:1.1
--- /dev/null	Thu Jan 28 19:48:45 2010
+++ packages/vigra/vigra-libpng.patch	Thu Jan 28 19:48:39 2010
@@ -0,0 +1,16 @@
+--- vigra1.6.0/src/impex/png.cxx	2008-08-13 15:15:45.000000000 +0200
++++ vigra1.6.0/src/impex/png.cxx.new	2010-01-28 19:45:59.180738629 +0100
+@@ -270,8 +270,13 @@
+         // expand gray values to at least one byte size
+         if ( color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8 ) {
+             if (setjmp(png->jmpbuf))
++#if PNG_LIBPNG_VER < 10400
+                 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);
++#else
++		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);
++#endif
+             bit_depth = 8;
+         }
+ 
================================================================