--- cinelerra/filepng.C.orig	2009-08-06 01:38:39.000000000 +0200
+++ cinelerra/filepng.C	2010-03-05 12:31:25.836243101 +0100
@@ -54,7 +54,7 @@
 		fread(test, 16, 1, stream);
 		fclose(stream);
 
-		if(png_check_sig((unsigned char*)test, 8))
+		if(png_sig_cmp((unsigned char*)test, 0, 8))
 		{
 //printf("FilePNG::check_sig 1\n");
 			return 1;
--- plugins/shapewipe/shapewipe.C.orig	2012-09-21 19:50:49.184736513 +0100
+++ plugins/shapewipe/shapewipe.C	2012-09-21 19:51:20.498072776 +0100
@@ -467,7 +467,7 @@
 	}
 
 	png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
-		png_voidp_NULL, png_error_ptr_NULL, png_error_ptr_NULL);
+		NULL, NULL, NULL);
 
 	if (!png_ptr)
 	{
@@ -480,14 +480,14 @@
 	info_ptr = png_create_info_struct(png_ptr);
 	if (!info_ptr)
 	{
-		png_destroy_read_struct(&png_ptr, png_infopp_NULL, png_infopp_NULL);
+		png_destroy_read_struct(&png_ptr, NULL, NULL);
 		return 1;
 	}
 
 	end_info = png_create_info_struct(png_ptr);
 	if (!end_info)
 	{
-		png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);
+		png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
 		return 1;
 	}