Consider getting superenv from `/etc/profile` and `/etc/environment` about brew

[MikeMcQuaid]

Admins are supposed to know what they are doing
If it breaks the build, it can be the admin's responsibility.

Sorry, this is not in keeping with our ideology or experience running Homebrew.

If we do something like this (and I'd want a bunch of @Homebrew/maintainers to approve) it would need to be:

• opt-in only using an environment variable
• flagged by brew doctor if there's any issues
• probably CentOS/Red Hat only

[SMillerDev]

Since this would only apply to gcc and curl (everything else is from Homebrew on Linux) I'd rather just check if a redhat software collection is available in addition to the usual /usr/bin/gcc check.

[MikeMcQuaid]

@SMillerDev Yeh, this is a good idea 👍🏻

[RealXuChe]

I'm sorry that this proposal does not align with Homebrew's ideology.

I still appreciate a workaround of only checking the Red Hat Developer Toolset.

Do you have any ideas on how this should be implemented? If you want, I can make a PR for this.

[MikeMcQuaid]

Do you have any ideas on how this should be implemented? If you want, I can make a PR for this.

Yes, I think locate in https://github.com/Homebrew/brew/blob/master/Library/Homebrew/extend/os/linux/development_tools.rb would be the best place to add this.

Feel free to open a PR even before it's working/done and we can help.

Closing issue just because the answer to original question is "no" and we'll talk more on PR (which we're excited about).

Thanks ❤️!