impossible to install on ruby 2.2.9 about stackprof HOT 4 OPEN

@mehagar for your case, greater than ruby 2.2 is required:

https://github.com/tmm1/stackprof#requirements

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Seeing the same thing trying to install from ruby 2.1.10 as well.

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@MathieuDerelle Sorry for the delay in my response. I decided to try reproducing this myself, but wasn't able to, but possibly some of the difficulties I had of trying to get Ruby 2.2 installed on a newer Mac might shed some light as to what the issue on your end might be.

To start, I had a couple failed attempts trying to get OpenSSL to work with Ruby properly. Turns out it was something as described here:

rbenv/ruby-build#1277

However, the steps suggested later in the post didn't work with the current state of Homebrew since they have deprecated [email protected], which Ruby needs:

rbenv/ruby-build#1353
https://github.com/rbenv/homebrew-tap

(Note: I currently use ruby-install, so I had to install that tap, but then run it a slightly different way then was suggested: ruby-install ruby-2.2.9 -- --with-openssl-dir=$(brew --prefix [email protected]))

That all said, none of this was an issue that you described, but while looking through said issues, it also seems like particular versions of clang might have issues with ruby installations:

rbenv/ruby-build#1353 (comment)

Completely guessing here, but it is possible that you installed ruby on a previous version of clang, and then upgraded and are now running into compatibility issues when trying to compile the Stackprof C extension.

Hope this helps,
-Nick

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Indeed, there are now problems with openssl when installing ruby < 2.4
Using rvm, the command for me was rvm install 2.2.9 --with-openssl-dir='/usr/local/opt/[email protected]'

I had some issues with Command Line Tools recently.
Now that its fixed, I'll try again to install this gem and come back to you.

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