eventmachine 'openssl/ssl.h' file not found
# Try the following
$ gem install eventmachine -- --with-cppflags=-I/usr/local/opt/openssl/include
Building native extensions with: '--with-cppflags=-I/usr/local/opt/openssl/include'
This could take a while...
Successfully installed eventmachine-1.0.8
1 gem installed
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# If it doesn't work, try this before the above
brew install openssl