> gcc -o test test.c -I /usr/local/gmp-4.1.4 -L /usr/local/gmp-4.1.4 -lgmp > but for both I got a "cannot find -lgmp" gcc -o test test.c -I /usr/local/gmp-4.1.4/include -L /usr/local/gmp-4.1.4/lib -lgmp -- Patrick Pelissier