diff -u pnglite-0.1.17.orig/pnglite.c pnglite-0.1.17/pnglite.c

--- pnglite-0.1.17.orig/pnglite.c	2011-08-11 13:48:04.899447483 +0300

+++ pnglite-0.1.17/pnglite.c	2011-08-11 13:53:20.159484127 +0300

@@ -113,7 +113,7 @@

 	if(pngalloc)

 		png_alloc = pngalloc;

 	else

-		png_alloc = &malloc;

+		png_alloc = (png_alloc_t)&malloc;

 	if(pngfree)

 		png_free = pngfree;

@@ -492,7 +492,7 @@

 	(void)png_end_deflate;

 	(void)png_deflate;

-	chunk = png_alloc(size);

+	chunk = png_alloc(size+8);

 	memcpy(chunk, "IDAT", 4);

 	written = size;

diff -u pnglite-0.1.17.orig/pnglite.h pnglite-0.1.17/pnglite.h

--- pnglite-0.1.17.orig/pnglite.h	2011-08-11 13:48:04.907447382 +0300

+++ pnglite-0.1.17/pnglite.h	2011-08-11 13:54:45.938405741 +0300

@@ -70,10 +70,10 @@

 	Typedefs for callbacks.

 */

-typedef unsigned (*png_write_callback_t)(void* input, size_t size, size_t numel, void* user_pointer);

-typedef unsigned (*png_read_callback_t)(void* output, size_t size, size_t numel, void* user_pointer);

+typedef unsigned (*png_write_callback_t)(void* input, unsigned long size, unsigned long numel, void* user_pointer);

+typedef unsigned (*png_read_callback_t)(void* output, unsigned long size, unsigned long numel, void* user_pointer);

 typedef void (*png_free_t)(void* p);

-typedef void * (*png_alloc_t)(size_t s);

+typedef void * (*png_alloc_t)(unsigned long s);

 typedef struct

 {

@@ -100,7 +100,7 @@

 	This function initializes pnglite. The parameters can be used to set your own memory allocation routines following these formats:

-	> void* (*custom_alloc)(size_t s)

+	> void* (*custom_alloc)(unsigned long s)

 	> void (*custom_free)(void* p)

 	Parameters:

 		pngalloc - Pointer to custom allocation routine. If 0 is passed, malloc from libc will be used.

@@ -136,8 +136,8 @@

 	This function reads or writes a png from/to the specified callback. The callbacks should be of the format:

-	> size_t (*png_write_callback_t)(void* input, size_t size, size_t numel, void* user_pointer);

-	> size_t (*png_read_callback_t)(void* output, size_t size, size_t numel, void* user_pointer).

+	> unsigned long (*png_write_callback_t)(void* input, unsigned long size, unsigned long numel, void* user_pointer);

+	> unsigned long (*png_read_callback_t)(void* output, unsigned long size, unsigned long numel, void* user_pointer).

 	Only one callback has to be specified. The read callback in case of PNG reading, otherwise the write callback.