entry point strncpy_s could not be located

[Kyle Schwarz <zeranoe@zeranoe.com>]

I'm getting the following error while trying to run FFmpeg with Windows 
XP using the latest version of pthreads-win32: "The procedure entry 
point strncpy_s could not be located in the dynamic link library msvcrt.dll"

Here is a little more information about the bug:
> This is because of a change in the pthreads-w32 CVS. I encountered it after I updated to GCC 4.8.1 but didn't realize anything was wrong until I'd gotten x264 and FFmpeg built. Thankfully, none of the aggregate libraries seem to be affected by pthreads doing this, so it seems relatively benign. The binaries as distributed will work fine on Vista and higher since the version of msvcrt.dll has the secure API functions necessary. If WinXP is a target, pthreads needs a little patching.

That was posted by the user qyot27 at: 
<http://ffmpeg.zeranoe.com/forum/viewtopic.php?f=7&t=1291>

There is also a patch that he submitted that seems to fix the issue:
> # For Windows XP users only:
> sed -i 's/ -DMINGW_HAS_SECURE_API//' GNUmakefile
>
>      sed -i -e '60i#ifdef MINGW_HAS_SECURE_API' \
>      -e '61i#else\n  strncpy(name, tp->name, len - 1);\n#endif' pthread_getname_np.c
>
>      sed -i -e '46i#ifdef MINGW_HAS_SECURE_API' \
>      -e '47i#else\n  strncpy(name, tp->name, len - 1);\n#endif' pthread_attr_getname_np.c

I would really apprciate any help on this, currently my FFmpeg builds 
are useless to Windows XP users because I utilize pthread-w32.

Best regards,
   Kyle