`sleepy_penguin` compile error on Mac

sleepy_penguin compile error on Mac

If you hit into a compile error looks like this while compiling sleepy_penguin on Mac:

kqueue.c:408:19: error: incompatible function pointer types passing

You can pass -Wno-incompatible-function-pointer-types to the C compiler to ignore this error. You can do this by running:

gem install sleepy_penguin -- --with-cflags=-Wno-incompatible-function-pointer-types

When you run bundle install it should reuse gems installed via gem install. If it’s not reusing the gems, see the next section about setting up Ruby environment. If you prefer to do this via bundle install, you can pass the flag by setting:

bundle config build.sleepy_penguin --with-cflags=-Wno-incompatible-function-pointer-types

This will create a .bundle/config file remembering this flag and next time when you run bundle install it’ll pass it to sleepy_penguin.