Still struggling to get Emacs built on the Mac

Seems the gccjit gets borked, and I'm struggling to get it unborked.

README-MacOS.org

@@ -28,20 +28,30 @@ I find that I need to … at least, on my work computer, install two different v
 #+end_src
 And the following for “work”:
 #+begin_src sh
-  brew install emacs-plus@29 --with-native-comp --with-elrumo1-icon
+  brew install emacs-plus@29 --with-native-comp --with-mailutils --with-elrumo1-icon
 #+end_src
 ** Ouchie
 Sometimes get the following error:
 #+begin_example
   ld: symbol(s) not found for architecture x86_64
 #+end_example
-And [[https://duckduckgo.com/?q=brew+ld%3A+symbol(s)+not+found+for+architecture+x86_64&t=ffab&ia=web][web searches]] yield mixed results. To solve, I:
-  * =brew uninstall emacs-plus@28=
-  * =brew update=
-  * =brew upgrade=
-  * =brew reinstall libgccjit=
-(Oh, and I made sure that =brew doctor= was clean…enough)
 
+And [[https://duckduckgo.com/?q=brew+ld%3A+symbol(s)+not+found+for+architecture+x86_64&t=ffab&ia=web][web searches]] yield mixed results. To solve, first /re-touch/ the environment (as it appears the problem is that some dependent library is now out-of-date compared to operating system installation):
+#+begin_src sh
+  brew update
+  brew upgrade
+#+end_src
+
+Next make sure that all the dependencies are /reinstalled/ with the current operating system:
+#+begin_src sh
+  brew reinstall $(brew deps emacs-plus@29)
+#+end_src
+
+Then reinstall the =libgccjit= (as it doesn’t seem to get picked up with the /deps/ listing):
+#+begin_src sh
+  brew uninstall --ignore-dependencies libgccjit
+  brew install libgccjit
+#+end_src
 * Supporting Packages
 Now install all the extras:
 #+begin_src sh