Fixes Homebrew/homebrew#40752.

Fixes Homebrew/homebrew#40656.

Closes Homebrew/homebrew#40706.

It has serious build issues, no dependents, and no updates upstream
since December 2010.

Closes Homebrew/homebrew#40756.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Fixes Homebrew/homebrew#40724.

Closes Homebrew/homebrew#40725.

Signed-off-by: Misty De Meo <mistydemeo@gmail.com>

Closes Homebrew/homebrew#40731.

Signed-off-by: Xu Cheng <xucheng@me.com>

Closes Homebrew/homebrew#40682.

Signed-off-by: Xu Cheng <xucheng@me.com>

Fixes Homebrew/homebrew#40636.

Fixes Homebrew/homebrew#40630.

Issue a warning about Homebrew's very basic support for 10.11 at this point
in time on each run of `brew`.

Closes Homebrew/homebrew#40536.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

Re: https://github.com/Homebrew/homebrew/commit/ad92f10ec35dcdbdd3424f663ffc7ff53287f714#commitcomment-11670008

Closes Homebrew/homebrew#40481.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Closes Homebrew/homebrew#40608.

Signed-off-by: Xu Cheng <xucheng@me.com>

Also make remote method only response to installed tap.

Closes Homebrew/homebrew#38835.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Fixes Homebrew/homebrew#38824

This ensures that all nested Git repositories (e.g. taps) are also
deleted. Previously this wasn't needed as we could just rely on the
symlinks in `Library/Formula` being missing but since Xu's good work
this inadvertedly made the bot's `brew uses foo` start showing things
from taps we hadn't previously deleted.

We don't support 10.5 anymore, and tigerbrew doesn't have this check
anymore, either.

It's not clear whether it returns MAKEFLAGS with or without -j<n>, and
neither is particularly useful behavior, given you can easily get the
exact value by calling ENV["MAKEFLAGS"]. So let's not commit to this
API.

Closes Homebrew/homebrew#40606.

Signed-off-by: Xu Cheng <xucheng@me.com>

For example e.g. Boxen uses just a managed directory and puts formulae
into it.

Tip mentioned in https://github.com/Homebrew/homebrew/pull/40570



Closes Homebrew/homebrew#40578.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

Closes Homebrew/homebrew#40486.

Signed-off-by: Xu Cheng <xucheng@me.com>

Closes Homebrew/homebrew#40478.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

They haven't been linked against so we don't care.

Closes Homebrew/homebrew#40410.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>