changing gmp install name

[Jason Moxham]

How do you change the installed name of gmp.h and libgmp.a ?

I'm playing with some changes to gmp and want to install them on my syste=
m ,=20
but also keep the existing gmp=20

for example=20

I want a normal gmp build=20
=2E/configure ; make ; make install
and in the programs that use it I use
#include "gmp.h" and -lgmp=20

and I also want a modified gmp build
=2E/configure --program-suffix=3D-test ; make ; make install
and in the programs that use it I want
#include "gmp-test.h" and -lgmp-test

but configure --program-suffix doesn't work , the names stay the same , s=
ame=20
happens with --program-transform-name

or can I just edit a few files to change the name ?

thanks
jason