Index: qt-x11-free-3.3.8b/src/kernel/qpngio.cpp
===================================================================
--- qt-x11-free-3.3.8b.orig/src/kernel/qpngio.cpp
+++ qt-x11-free-3.3.8b/src/kernel/qpngio.cpp
@@ -162,7 +162,7 @@ void setup_qt( QImage& image, png_struct
 		image.setColor( i, qRgba(c,c,c,0xff) );
 	    }
 	    if ( png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ) {
-		const int g = info_ptr->trans_values.gray;
+		const int g = info_ptr->trans_color.gray;
 		if (g < ncols) {
 		    image.setAlphaBuffer(TRUE);
 		    image.setColor(g, image.color(g) & RGB_MASK);
@@ -190,7 +190,7 @@ void setup_qt( QImage& image, png_struct
 		    info_ptr->palette[i].red,
 		    info_ptr->palette[i].green,
 		    info_ptr->palette[i].blue,
-		    info_ptr->trans[i]
+		    info_ptr->trans_alpha[i]
 		    )
 		);
 		i++;