--program-suffix flag

Hello,
I'm trying to generate 2 different libc flavors for the same toolchain.
I would like to have a libc.a library and a libc-nano.a library.
The nano one, contains the typical configure flags to generate a nano
version of newlib.

Additionally, I'm trying to use the flag --program-suffix="-nano" thinking
that it will generate libc-nano.a libg-nano.a and libm-nano.a libraries
however it is still generating libraries with common names, libc.a, libg.a
and libm.a.

Do I'm missing something? or is the program-suffix being ignored?

Thanks