together with rrdtool in $prefix/lib/ruby. You have to
add $prefix/lib/ruby/$ruby_version/$sitearch to you $: variable
for ruby to find the RRD.so file.],
-[RUBY_MAKE_OPTIONS=],[RUBY_MAKE_OPTIONS="sitedir=$prefix/lib/ruby"])
+[RUBY_MAKE_OPTIONS=],[RUBY_MAKE_OPTIONS="sitedir="'$(DESTDIR)'"$prefix/lib/ruby"])
AC_ARG_WITH(ruby-options,