Do not directly access the fields of png_struct and png_info.

--- a/plugins/mswrite/xp/ie_imp_MSWrite.cpp	2010-05-30 21:20:53.000000000 +0200
+++ b/plugins/mswrite/xp/ie_imp_MSWrite.cpp	2014-09-07 06:58:04.162298089 +0200
@@ -891,7 +891,7 @@
 		info_ptr = png_create_info_struct (png_ptr);
 		if (!info_ptr) goto err;
 		
-		if (setjmp (png_ptr->jmpbuf) ) {
+		if (setjmp (png_jmpbuf(png_ptr)) ) {
 			png_destroy_write_struct (&png_ptr, &info_ptr);
 			goto err;
 		}

--- a/src/af/gr/win/gr_Win32Image.cpp	2009-07-08 19:33:53.000000000 +0200
+++ b/src/af/gr/win/gr_Win32Image.cpp	2014-09-07 06:58:04.198298090 +0200
@@ -148,7 +148,7 @@
 	info_ptr = png_create_info_struct(png_ptr);
 
 	// libpng will longjmp back to here if a fatal error occurs
-	if (setjmp(png_ptr->jmpbuf))
+	if (setjmp(png_jmpbuf(png_ptr)))
 	{
 		/* If we get here, we had a problem reading the file */
 		png_destroy_write_struct(&png_ptr,  (png_infopp)NULL);
@@ -547,7 +547,7 @@
 	 * the normal method of doing things with libpng).  REQUIRED unless you
 	 * set up your own error handlers in the png_create_read_struct</td></tr></table>
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or the stejmp context */
 UT_Error IE_ImpGraphic_GdkPixbuf::_png_write(GdkPixbuf * pixbuf)
 {
-	if (setjmp(m_pPNG->jmpbuf))
+	if (setjmp(png_jmpbuf(m_pPNG)))
 	{
 		DELETEP(m_pPngBB);
 		png_destroy_write_struct(&m_pPNG, &m_pPNGInfo);
@@ -446,7 +446,7 @@
 	 * the normal method of doing things with libpng).  REQUIRED unless you
 	 * set up your own error handlers in the png_create_read_struct() earlier.
 	 */
-	if (setjmp(m_pPNG->jmpbuf))
+	if (setjmp(png_jmpbuf(m_pPNG)))
 	{
 		/* Free all of the memory associated with the png_ptr and info_ptr */
 		png_destroy_write_struct(&m_pPNG, &m_pPNGInfo);

--- a/plugins/bmp/xp/ie_impGraphic_BMP.cpp	2014-09-07 07:03:02.000000000 +0200
+++ b/plugins/bmp/xp/ie_impGraphic_BMP.cpp	2014-09-07 12:35:33.306961036 +0200
@@ -191,7 +191,11 @@
 
 	/* Clean Up Memory Used */
 		
-	FREEP(m_pPNGInfo->palette);
+	
+	png_colorp palette;
+	int ignored_placeholder;
+	png_get_PLTE(m_pPNG, m_pPNGInfo, &palette, &ignored_placeholder);
+	FREEP(palette);
 	DELETEP(pBB);
 	png_destroy_write_struct(&m_pPNG, &m_pPNGInfo);
    
--- a/plugins/garble/xp/abiword-garble-png.cpp	2009-09-05 17:34:44.000000000 +0200
+++ b/plugins/garble/xp/abiword-garble-png.cpp	2014-09-08 00:15:04.508335153 +0200
@@ -79,7 +79,7 @@
 		png_set_strip_alpha( png_ptr );
 		png_set_interlace_handling( png_ptr );
 		png_set_bgr( png_ptr );
-		rowbytes = info_ptr->rowbytes;
+		rowbytes = png_get_rowbytes( png_ptr, info_ptr );
 		png_destroy_read_struct( &png_ptr, &info_ptr, NULL );
 	}