From 4e8d324922b0a5574579a5771e45aa080983891d Mon Sep 17 00:00:00 2001
From: Lucas Hosseini <lucas.hosseini@gmail.com>
Date: Tue, 15 Jan 2019 21:47:02 +0100
Subject: [PATCH] Fix Travis build on OSX. (#692)

---
 .travis.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index e744ebc00..d2c743e32 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -51,16 +51,16 @@ matrix:
         - LD_LIBRARY_PATH="/usr/local/clang/lib"
     - os: osx
       env:
-        - MATRIX_EVAL="brew install gcc@6 numpy swig; brew link --overwrite gcc@6; export CC=gcc-6 CXX=g++-6"
+        - MATRIX_EVAL="brew update && brew install gcc@6 numpy swig; brew link --overwrite gcc@6; export CC=gcc-6 CXX=g++-6"
     - os: osx
       env:
-        - MATRIX_EVAL="brew install llvm numpy swig; brew link --overwrite llvm; export CC=/usr/local/opt/llvm/bin/clang CXX=/usr/local/opt/llvm/bin/clang++"
+        - MATRIX_EVAL="brew update && brew install llvm numpy swig; brew link --overwrite llvm; export CC=/usr/local/opt/llvm/bin/clang CXX=/usr/local/opt/llvm/bin/clang++"
         - LDFLAGS="-L/usr/local/opt/llvm/lib"
         - CPPFLAGS="-I/usr/local/opt/llvm/include"
   allow_failures:
     - os: osx
       env:
-        - MATRIX_EVAL="brew install gcc@6 numpy swig; brew link --overwrite gcc@6; export CC=gcc-6 CXX=g++-6"
+        - MATRIX_EVAL="brew update && brew install gcc@6 numpy swig; brew link --overwrite gcc@6; export CC=gcc-6 CXX=g++-6"
 
 before_install:
   - eval "$MATRIX_EVAL"