sqlite configure 32 bits and 64 bits on mac os x

I am running MacOSX in 64 bits.
However for some reasons, I need sometimes to compile some programs in 32 bits (depending on 32 bits libraries)

so I need sqlite in 32 and 64 bits, and I configure it with the following command line:

> CFLAGS='-arch i686 -arch x86_64' LDFLAGS='-arch i686 -arch x86_64' ./configure --disable-dependency-tracking

Write to you soon,
Sylvain