From ef7c9cf17cf4c65bc198d77d7957b631f58aaea8 Mon Sep 17 00:00:00 2001
From: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Date: Fri, 2 Sep 2022 14:28:07 +0800
Subject: [PATCH] linux/linkage_checker: remove `gcc` from `undeclared_deps`

This is causing warnings all over Homebrew/homebrew-core.

For example, there are dozens of warnings about this in the following CI
run:

    https://github.com/Homebrew/homebrew-core/runs/8116257943?check_suite_focus=true
---
 Library/Homebrew/extend/os/linux/linkage_checker.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Library/Homebrew/extend/os/linux/linkage_checker.rb b/Library/Homebrew/extend/os/linux/linkage_checker.rb
index 583107d85e..2603ed0d9a 100644
--- a/Library/Homebrew/extend/os/linux/linkage_checker.rb
+++ b/Library/Homebrew/extend/os/linux/linkage_checker.rb
@@ -80,5 +80,7 @@ class LinkageChecker
     @unwanted_system_dylibs = @system_dylibs.reject do |s|
       SYSTEM_LIBRARY_ALLOWLIST.include? File.basename(s)
     end
+
+    @undeclared_deps.delete("gcc")
   end
 end