Linux brutessl client

Hi. I've been able to compile a working brutessl 1.02 cllient under linux and gcc 2.7.0, but I get abysmal search speeds. My system is a pentium 60, which, according to the docs, ought to have a speed of something over 14100 kps (that's what a 486dx2/66 with no rotate left macro gets). brutessl -t reports that my system can do 11200 keys per second. Is there any obvious reason this number is so much lower than expected? I'm reasonably certain gcc implemets a rotl macro, but I don't know how to make use of it -- has anyone out there gotten assembly.c to compile under gcc? Finally, are there any additional optimizations for pentium machines available? thanks, -sq