It's better than that. If somebody compiles glibc to not run on older
kernels at all (tested at runtime) then the code is dropped. E.g., the
current Fedora glibc does not support 2.6.8 or earlier.
So, don't let the compat code be a factor in the decision making.
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=E2=9E=A7 Ulrich Drepper =E2=9E=A7 Red Hat, Inc. =E2=9E=A7 444 Castro St =
=E2=9E=A7 Mountain View, CA =E2=9D=96