From 4013da3128e1973c389486ecadc3904d8ce4c7ea Mon Sep 17 00:00:00 2001
From: Lionell <lionell_loh@mymail.sutd.edu.sg>
Date: Wed, 1 Jul 2020 21:45:47 +0800
Subject: [PATCH] license-bl: new blacklist env var

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

diff --git a/Library/Homebrew/env_config.rb b/Library/Homebrew/env_config.rb
index 108218aed0..7f613779fb 100644
--- a/Library/Homebrew/env_config.rb
+++ b/Library/Homebrew/env_config.rb
@@ -111,6 +111,10 @@ module Homebrew
         description: "Output this many lines of output on formula `system` failures.",
         default:     15,
       },
+      HOMEBREW_FORBIDDEN_LICENSES:        {
+        description: "Use this environment variable to define a blacklist of space separated licenses and Homebrew " \
+                     "will avoid installing the packages with those licenses.",
+      },
       HOMEBREW_FORCE_BREWED_CURL:         {
         description: "If set, always use a Homebrew-installed `curl`(1) rather than the system version. " \
                      "Automatically set if the system version of `curl` is too old.",