Hi, I just wanted to report that make check now runs without failure on my Mac using the new compiler provided with xCode 2.4. (powerpc-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 (Apple Computer, Inc. build 5363), GMP 4.2.1 Mac G5, dual 2GHz, 3GB Ram, OS 10.4.7.) Best regards, Yves