Hi All I am using gcc 4.2.3 on an AIX node. I get the following error on link time /lib/libc.a(moveeq.o):moveeq.s:(.pr+0xc): undefined reference to `.___memmove' Any ideas what this may mean. I would very much appreciate your help and input. I will definitely try your inputs and will reply back as to what the results were. Thanks in advance With Regards Vardhan