From 735b1fadc3e7359cbce2651f88fc1592c1518130 Mon Sep 17 00:00:00 2001
From: Victor Zverovich <victor.zverovich@gmail.com>
Date: Sat, 6 Apr 2019 09:49:35 -0700
Subject: [PATCH] Only update key on Linux

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index bf44ee60..16f578bf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -126,7 +126,7 @@ matrix:
 before_script:
   - if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then export CXX=${COMPILER}; fi
   - if [[ "${BUILD}" != "Doc" ]]; then ${CXX} --version; fi
+  - if [[ "${BUILD}" == "Doc" ]]; then sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 6B05F25D762E3157; fi
 
 script:
-  - sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 6B05F25D762E3157
   - support/travis-build.py