Add installation instructions for m4 on mac

[stradig]

Problem

Building on MacOS failed due to missing m4. Although a window was popping up claiming to install m4, this was not helping.

Summary of changes

Add instructions to install m4 using brew and link it (thanks to Folke for helping).

[stradig]

Thanks, VS Code sometimes adds this :(. Fixed.

[skyzh]

LGTM -- @davidgomes also added this in one of his PR, anyways, we can get this merged first

[davidgomes]

LGTM -- @davidgomes also added this in one of his PR, anyways, we can get this merged first

Just merge this, I will rebase and fix conflicts because my PR will take a while to get merged.

[github-actions]

3829 tests run: 3719 passed, 0 failed, 110 skipped (full report)

---

Flaky tests (2)

Postgres 16

• test_subscriber_restart: release-x86-64

Postgres 15

• test_scrubber_physical_gc[4]: release-x86-64

Code coverage* (full report)

• functions: 31.9% (7389 of 23138 functions)
• lines: 50.3% (59653 of 118607 lines)

* collected from Rust tests only

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_{The comment gets automatically updated with the latest test results
02412e4 at 2024-09-05T15:16:28.966Z :recycle:}

[bayandin]

m4 comes with command line tools (CLT, installed via xcode-select --install), @stradig / @davidgomes could you guys share your brew config output (it shows which CLT version is installed)

Don't want to block the merge

[davidgomes]

m4 comes with command line tools (CLT, installed via xcode-select --install), @stradig / @davidgomes could you guys share your brew config output (it shows which CLT version is installed)

It didn't for me, for sure. Anyway, here's my brew config output:

HOMEBREW_VERSION: 4.3.19
ORIGIN: https://github.com/Homebrew/brew
HEAD: 1f9bd2de89883ec9a59db3eab0f5475bce06d5bc
Last commit: 3 days ago
Core tap JSON: 05 Sep 14:13 UTC
Core cask tap JSON: 05 Sep 14:13 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 11
Homebrew Ruby: 3.3.4 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.3.4_1/bin/ruby
CPU: 11-core 64-bit arm_lobos
Clang: 15.0.0 build 1500
Git: 2.45.2 => /opt/homebrew/bin/git
Curl: 8.6.0 => /usr/bin/curl
macOS: 14.5-arm64
CLT: 15.3.0.0.1.1708646388
Xcode: N/A
Rosetta 2: false

[cloneable]

m4 comes with command line tools (CLT, installed via xcode-select --install), @stradig / @davidgomes could you guys share your brew config output (it shows which CLT version is installed)

No, it's a known issue for a few months now and Apple is working on a fix supposedly. https://github.com/Homebrew/homebrew-core/issues/165388#issuecomment-2029794821

[stradig]

Thanks!

Here is my output

HOMEBREW_VERSION: 4.3.19
ORIGIN: https://github.com/Homebrew/brew
HEAD: 1f9bd2de89883ec9a59db3eab0f5475bce06d5bc
Last commit: 3 days ago
Core tap JSON: 05 Sep 13:16 UTC
Core cask tap JSON: 05 Sep 13:16 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 12
Homebrew Ruby: 3.3.4 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.3.4_1/bin/ruby
CPU: dodeca-core 64-bit arm_lobos
Clang: 15.0.0 build 1500
Git: 2.39.3 => /Library/Developer/CommandLineTools/usr/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 14.6.1-arm64
CLT: 15.3.0.0.1.1708646388
Xcode: N/A
Rosetta 2: false

[bayandin]

m4 comes with command line tools (CLT, installed via xcode-select --install), @stradig / @davidgomes could you guys share your brew config output (it shows which CLT version is installed)

No, it's a known issue for a few months now and Apple is working on a fix supposedly. https://github.com/Homebrew/homebrew-core/issues/165388#issuecomment-2029794821 I wonder if they initially did that because of M4 branding.

Thanks for the link!
My knowledge was outdated 😅