When building x86_energy_perf_policy or turbostat within the confines of
a packaging system such as RPM, we need to be able to have it install to
the buildroot and not the root filesystem of the build machine. This
adds a DESTDIR variable that when set will act as a prefix for the
install location of these tools.
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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