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No usable OpenSSL found #82

mschae opened this Issue Aug 17, 2018 · 3 comments


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mschae commented Aug 17, 2018

I get the following warnings/errors when trying to install erlang 21.0:

 * crypto         : No usable OpenSSL found
 * ssh            : No usable OpenSSL found
 * ssl            : No usable OpenSSL found

I'm on MacOS 10.13.6, updated asdf-erlang and have openssl installed via homebrew:

% brew ls --versions openssl
openssl 1.0.2o_1 1.0.2p 1.0.2o_2

Any ideas?


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Stratus3D commented Aug 20, 2018

I'm not sure. Do you happen to have OpenSSL installed via some other method? It's possible you have some brew installed versions and one version that was installed manually by something else. Maybe kerl found the other installation first and realized it was not suitable for Erlang?


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ddresselhaus commented Aug 25, 2018

Ran into the same thing. Ended up just passing a valid openssl location to the --with-ssl flag into the build options.

At the end of the day, the KERL_CONFIGURE_OPTIONS line in my .zshrc file looked like this:
export KERL_CONFIGURE_OPTIONS="--disable-debug --disable-silent-rules --without-javac --enable-shared-zlib --enable-dynamic-ssl-lib --enable-hipe --enable-sctp --enable-smp-support --enable-threads --enable-kernel-poll --enable-wx --enable-darwin-64bit --with-ssl=/usr/local/Cellar/openssl/1.0.2p"

Also, I forgot to source it, which wasted even more time.


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Stratus3D commented Aug 27, 2018

Thanks for sharing @ddresselhaus. Closing this issue since I don't believe it's due to a bug in asdf-erlang.

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