Need Mac compatile 64-bit version of nsppxl.lib (Intel NSP FIR Library)

I am using nsppxl.lib (Intel NSP FIR Library) as a dependency for old MFC based image processing code which is written in Visual Studio 2005. Now i want to move this code to standard C++ 11 so that I can use it on Mac OS platform as well. " I need Mac compatible (static library) 64 bit version of nsppxl.lib ". I have searched for the same on Intel site and forum but no help so far. Thanks.