From ac3b5fa9ad830105a40db0279259870713fc5b3d Mon Sep 17 00:00:00 2001
From: Alex Arslan <ararslan@comcast.net>
Date: Fri, 4 Jan 2019 17:12:14 -0800
Subject: [PATCH] Use XCode 8.3 for macOS on Travis

This corresponds to macOS 10.12 Sierra. XCode 8 covers El Capitan and
Sierra, so if Travis is giving us XCode 8.x for x < 3, we're on El Cap.
Homebrew supports only three versions of macOS at a time, which means
that El Cap (10.11) is no longer support. This is likely why our Mac
builds are trying to build GCC from source; a bottle might not be
available.
---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 5d961cbfdbe1e..1f45c08d32008 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -40,7 +40,7 @@ matrix:
             - gfortran-5
     - os: osx
       env: ARCH="x86_64"
-      osx_image: xcode8
+      osx_image: xcode8.3
 cache: ccache
 branches:
   only: