Installing Erlang on OSX Mojave can't find OpenSSL

[fhunleth]

I'm currently getting:

$ asdf install erlang 21.0.9
Extracting source code
Building Erlang/OTP 21.0.9 (asdf_21.0.9), please wait...
APPLICATIONS DISABLED (See: /Users/fhunleth/.asdf/plugins/erlang/kerl-home/builds/asdf_21.0.9/otp_build_21.0.9.log)
 * crypto         : No usable OpenSSL found
 * odbc           : ODBC library - header check failed
 * ssh            : No usable OpenSSL found
 * ssl            : No usable OpenSSL found

I've tried reinstalling OpenSSL with Homebrew and then exporting PKG_CONFIG_PATH, CPPFLAGS, and LDFLAGS to help the build tools find it, but no luck.

I'm at the tip revisions of asdf-erlang and asdf.

I'm wondering if there's anything else that would be good to try. As far as I could tell installing Erlang w/ asdf on High Sierra worked flawlessly for me, so I assume that the Mojave upgrade changed something important.

[MarcusSky]

same here!

[MarcusSky]

@fhunleth there's a possible solution here: #82 I'm trying it out right now.

EDIT: worked for me ☝️

[sirn]

Kerl detects if it is being installed on macOS 10.11+ and use brew to determine the openssl location. Unfortunately the detection is limited to just 10.13 (High Sierra) and OpenSSL detection doesn't happen in Mojave.

I've went ahead and created PR for Kerl to detect OpenSSL on Mojave. If you want to use kerl to install Erlang in the same manner as asdf-erlang, please try:

$ export ERLANG_VERSION=21.0.9
$ export KERL_BASE_DIR="$HOME/.asdf/plugins/erlang/kerl-home/"
$ export KERL_BUILD_BACKEND=git
$ curl -o kerl https://raw.githubusercontent.com/kerl/kerl/ea951d4dfd10e5b80f8a7a1bc7a56062fd426907/kerl
$ chmod +x kerl
$ ./kerl build $ERLANG_VERSION asdf_$ERLANG_VERSION
$ ./kerl install asdf_$ERLANG_VERSION ~/.asdf/installs/erlang/$ERLANG_VERSION/

Edit: fix snippets

[Stratus3D]

For anyone who comes across this issue. The fix should be as simple as running asdf plugin-update erlang.

[coladarci]

Thanks @Stratus3D for pointing me in the right direction - asdf plugin-update --all is a good thing to do after upgrading to Mojave, we've found..

[pdgonzalez872]

If folks run into this issue and asdf plugin-update erlang does not solve their problem:

After helping set up a colleague's machine, using the --with-ssl flag, as seen here: #82 (comment) was the solution.

[skyerus]

To add to this if you're still having issues, I had to rm -R ~/.asdf/plugins/erlang/kerl-home/builds/asdf_19.0 to get it to install properly