While installing Ruby gems on macOS, you might encounter an error like:
In file included from binder.cpp:20: ./project.h:119:10: fatal error: 'openssl/ssl.h' file not found #include <openssl/ssl.h> ^~~~~~~~~~~~~~~ 1 error generated. make: *** [binder.o] Error 1 make failed, exit code 2 Gem files will remain installed in /Users/burak/.rvm/gems/ruby-3.0.1/gems/eventmachine-1.2.7 for inspection.
That was the case for me when I was trying to install
jekyll gem using
gem install jekyll.
Solution is to do:
gem install jekyll -- --with-cppflags=-I/opt/homebrew/opt/openssl/include