On Wed, May 23, 2007 at 06:10:13PM +0800, DengDongdong wrote:
> Hi ,
> I had successed to port the jpeg library to ecos. :)
>
> But now, i have new question about the zlib library,
>
> when i use the zlib which provided by ecos, i discove the function of
> z_crc32 is not contain by libz.a .
> so i can't link the application success.
Where is the link error coming from? Your code or within the zlib
code?
As far as i know Z_PREFIX is not defined, so you should be using
deflate, not z_deflate, inflate, not z_inflate, and more importantly,
crc32 not z_crc32.
Also, you will find in packages/services/compress/zlib/current/src/zutil.h
#ifdef __ECOS__
#include <cyg/compress/zlib.h>
#include <cyg/crc/crc.h>
#undef crc32
#define crc32 cyg_ether_crc32_accumulate
The crc function used by zlib actually comes from the CRC package.
Andrew
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