Fix shared library loading preference on non-x86 architectures (especially those like aarch64 which sort lexicographically ahead of "libc.conf")

[tianon]

See https://bugs.debian.org/685706 for the upstream bug report.

See https://doi-janky.infosiftr.net/job/multiarch/job/arm64v8/job/rabbitmq/116/console for an example failing build.

[tianon]

This doesn't fix the build completely, it just gets us a lot further. 😞

+ openssl version
OpenSSL 1.1.1a  20 Nov 2018
+ erl -noshell -eval io:format("~p~n~n~p~n~n", [crypto:supports(), ssl:versions()]), init:stop().
{"init terminating in do_boot",{undef,[{crypto,supports,[],[]},{erl_eval,do_apply,6,[{file,"erl_eval.erl"},{line,680}]},{erl_eval,expr,5,[{file,"erl_eval.erl"},{line,232}]},{erl_eval,expr_list,6,[{file,"erl_eval.erl"},{line,888}]},{erl_eval,expr,5,[{file,"erl_eval.erl"},{line,411}]},{erl_eval,exprs,5,[{file,"erl_eval.erl"},{line,126}]},{init,start_it,1,[]},{init,start_em,1,[]}]}}
init terminating in do_boot ({undef,[{crypto,supports,[],[]},{erl_eval,do_apply,6,[{_},{_}]},{erl_eval,expr,5,[{_},{_}]},{erl_eval,expr_list,6,[{_},{_}]},{erl_eval,expr,5,[{_},{_}]},{erl_eval,exprs,5,

Crash dump is being written to: erl_crash.dump...done

[tianon]

I've now pushed a fix that makes i386 build (and added i386 building to our Travis matrix), but arm64 is still sadness. 😞