--- libpng-1.2.10/png.h.orig	2006-04-23 20:45:34.000000000 +0200
+++ libpng-1.2.10/png.h	2006-05-14 20:38:24.000000000 +0200
@@ -1699,16 +1699,16 @@
 extern PNG_EXPORT(void,png_destroy_read_struct) PNGARG((png_structpp
    png_ptr_ptr, png_infopp info_ptr_ptr, png_infopp end_info_ptr_ptr));
 
-/* free all memory used by the read (old method - NOT DLL EXPORTED) */
-extern void png_read_destroy PNGARG((png_structp png_ptr, png_infop info_ptr,
-   png_infop end_info_ptr));
+/* free all memory used by the read (old method) */
+extern PNG_EXPORT(void,png_read_destroy) PNGARG((png_structp png_ptr,
+   png_infop info_ptr, png_infop end_info_ptr));
 
 /* free any memory associated with the png_struct and the png_info_structs */
 extern PNG_EXPORT(void,png_destroy_write_struct)
    PNGARG((png_structpp png_ptr_ptr, png_infopp info_ptr_ptr));
 
-/* free any memory used in png_ptr struct (old method - NOT DLL EXPORTED) */
-extern void png_write_destroy PNGARG((png_structp png_ptr));
+/* free any memory used in png_ptr struct (old method) */
+extern PNG_EXPORT(void,png_write_destroy) PNGARG((png_structp png_ptr));
 
 /* set the libpng method of handling chunk CRC errors */
 extern PNG_EXPORT(void,png_set_crc_action) PNGARG((png_structp png_ptr,
--- libpng-1.2.10/pngread.c.orig	2006-04-23 20:45:34.000000000 +0200
+++ libpng-1.2.10/pngread.c	2006-05-14 20:39:36.000000000 +0200
@@ -1151,7 +1151,7 @@
 }
 
 /* free all memory used by the read (old method) */
-void /* PRIVATE */
+void PNGAPI
 png_read_destroy(png_structp png_ptr, png_infop info_ptr, png_infop end_info_ptr)
 {
 #ifdef PNG_SETJMP_SUPPORTED
--- libpng-1.2.10/pngwrite.c.orig	2006-04-23 20:45:35.000000000 +0200
+++ libpng-1.2.10/pngwrite.c	2006-05-14 20:39:49.000000000 +0200
@@ -1052,7 +1052,7 @@
 
 
 /* Free any memory used in png_ptr struct (old method) */
-void /* PRIVATE */
+void PNGAPI
 png_write_destroy(png_structp png_ptr)
 {
 #ifdef PNG_SETJMP_SUPPORTED