Linking warning

Hi, all

when I compile my projects, I got these warnings:

ld warning: in /usr/local/cuda/lib/libcufft.dylib, file is not of required architecture
ld warning: in /usr/local/cuda/lib/libcublas.dylib, file is not of required architecture

but the cuda SDK projects can be compiled successfully.

any idea why is that? the os 9.7.0 Darwin Kernel Version i386.

thanks!