macos binary release 3.4.0 doesn't work on macos 11.x

[wmitsuda]

I'm using the precompiled binary from github for macos (portable version; regular one, NOT tree states).

LH 3.3 used to run fine.

LH 3.4.0 is giving the following message:

dyld: Symbol not found: __ZTTNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE
  Referenced from: /Users/wmitsuda/Downloads/lighthouse-gnosischain (which was built for Mac OS X 12.0)
  Expected in: /usr/lib/libc++.1.dylib
 in /Users/wmitsuda/Downloads/lighthouse-gnosischain

which makes me believe it requires macos 12 or newer, but I couldn't find anything in the release notes, so I don't know if it's on purpose or a bug during the build process.

[michaelsproul]

Interesting. This was unintentional. Github had been warning us that they'd increment macos-latest from 11 to 12, but we ignored it because we weren't aware it would break anything.

This issue is a good reason to explicitly opt-in to macos-11 here:

lighthouse/.github/workflows/release.yml

Lines 48 to 53 in 38514c0

	- arch: x86_64-apple-darwin
	platform: macos-latest
	profile: maxperf
	- arch: x86_64-apple-darwin-portable
	platform: macos-latest
	profile: maxperf

[wmitsuda]

just adding context: my laptop is using a recent macos version, but I have an older one that I recently "promoted" as a test server, that one is a 2016 model which Apple stopped supporting and it is stuck on macos 11.

I usually run the builds from homebrew (see issue #3909 ), but because it's not supporting gnosis I had to download the binaries manually and got stuck on this issue.