SME6.5 use newer packages. You need to look at
fedolalegacy. And find the right rpms at
http://download.fedoralegacy.org/redhat/7.3/.
autoconf-2.13-17.noarch.rpm
automake-1.4p5-4.noarch.rpm
cpp-2.96-113.i386.rpm
gcc-2.96-113.i386.rpm
gcc-c++-2.96-113.i386.rpm
glibc-devel-2.2.5-44.legacy.3.i386.rpm
glibc-kernheaders-2.4-7.16.i386.rpm
kernel-source-2.4.20-37.7.legacy.i386.rpm
libstdc++-devel-2.96-113.i386.rpm
m4-1.4.1-7.i386.rpm
ncurses-devel-5.2-26.i386.rpm
zlib-devel-1.1.4-8.7x.i386.rpm