OpenSSL, RVM, Brew, conflicting error

Question

When I run brew doctor in Terminal: I get the following error:

Warning: Some keg-only formula are linked into the Cellar.
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Answer 1

This seems to be the key point to be aware of, I've copied and pasted into a text doc for later use. Generally there are no consequences of this for you. If you build your own software and it requires this formula, you'll need to add to your build variables:

LDFLAGS:  -L/usr/local/opt/openssl/lib
CPPFLAGS: -I/usr/local/opt/openssl/include

But does anyone think that this will have consequences for our macs in general? Would a better alternative have been to force the link to the existing openssl? Or is it necessary to have the version from homebrew in order to correctly set up our Ruby development environments. I'm keen to know, as I'm in the process of doing a lot of configuring with the intention of developing a website, and I want my development environment to be as stable as possible. I appreciate any of your responses, after a semester of unix and plenty of other research, there is still so much to know! But knowledge is power!