Liu Xin wrote: > Hi, Community, > > #uname -a > Linux localhost.localdomain 2.6.23.9-85.fc8 #1 SMP Fri Dec 7 15:49:36 EST 2007 x86_64 x86_64 x86_64 GNU/Linux > > my processor is laptop intel merom 5470. > > and i simply can include <libelf.h> > > if did, error will > > //// > In file included from hello.c:3: > /usr/include/libelf.h:98: error: expected specifier-qualifier-list before ‘off64_t’ It seems libelf.h might not match. Where did you get it from: $ rpm -qf /usr/include/libelf.h $ rpm -qa \*elf\*|sort DaveT.