From 31be0b4a75ad37e0f96693bba3b08d99b76b0038 Mon Sep 17 00:00:00 2001
From: JulioV <JulioV@users.noreply.github.com>
Date: Fri, 10 Jul 2020 14:56:23 -0400
Subject: [PATCH] Force gcc 9 and no update brew

---
 .travis.yml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index f1889a6e..d02a821f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,8 +33,9 @@ jobs:
       osx_image: xcode11.3  # Python 3.7 running on macOS 10.14.4
       language: generic       # 'language: python' is an error on Travis CI macOS
       before_install:
-        - brew install gcc@9
-        - brew install https://github.com/Homebrew/homebrew-core/raw/218998d/Formula/r.rb
+        - brew link --overwrite gcc@9
+        - ls /usr/local/opt/gcc/lib/gcc
+        - brew install https://github.com/Homebrew/homebrew-core/raw/d381cc8/Formula/r.rb
         - R --version
         - brew install mysql
         - brew services start mysql
@@ -43,6 +44,7 @@ jobs:
 
       env:
         - RENV_PATHS_ROOT="$HOME/renv/cache"
+        - HOMEBREW_NO_AUTO_UPDATE=1
       cache:
         directories:
           - /usr/local/lib/R