grep 2.5: Install details

[Jan D.]

Hello.

When installing grep 2.5 over a previous version, the installation
fails:
% make install
...
ln -s grep /usr/bin/egrep
ln: `/usr/bin/egrep': File exists
make[2]: *** [install-exec-local] Error 1

The makefile probably pass the -f flag to ln or remove the target
before the ln -s call.  Ditto for fgrep.

Thanks,

        Jan D.