From 5de162f71a288c7c4b2e02a7c1b99f720036d930 Mon Sep 17 00:00:00 2001
From: hyuraku <32809703+hyuraku@users.noreply.github.com>
Date: Thu, 15 Jul 2021 21:48:21 +0900
Subject: [PATCH] installed_dependents: reject build formula

---
 Library/Homebrew/installed_dependents.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/installed_dependents.rb b/Library/Homebrew/installed_dependents.rb
index 7d231943e7..251707fc34 100644
--- a/Library/Homebrew/installed_dependents.rb
+++ b/Library/Homebrew/installed_dependents.rb
@@ -51,7 +51,9 @@ module InstalledDependents
         dependent.missing_dependencies(hide: keg_names)
       when Cask::Cask
         # When checking for cask dependents, we don't care about missing dependencies
-        CaskDependent.new(dependent).runtime_dependencies(ignore_missing: true).map(&:to_formula)
+        CaskDependent.new(dependent).runtime_dependencies(ignore_missing: true).reject do |dependency|
+          dependency.tags.include?(:build)
+        end.map(&:to_formula)
       end
 
       required_kegs = required.map do |f|