[gnome-commander/googletest] Upgrades gcc to v4.8 for better C++ support in travis

[Uwe Scholz <uwescholz src gnome org>]

commit 7c47b09a3869ed9bb067197358964fbb30857999
Author: Uwe Scholz <uwescholz src gnome org>
Date:   Sun Nov 29 18:59:17 2015 +0100

    Upgrades gcc to v4.8 for better C++ support in travis

 .travis.yml |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/.travis.yml b/.travis.yml
index 24cf9b2..5d80168 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,9 +4,12 @@ compiler:
   - gcc
 
 before_install:
+  - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
+  - sudo apt-get update -qq
+  - if [ "$CXX" = "g++" ]; then sudo apt-get install -qq g++-4.8; fi
+  - if [ "$CXX" = "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
   - echo $LANG
   - echo $LC_ALL
-  - sudo apt-get update -qq
   - sudo apt-get install libgtest-dev
   - sudo mkdir /usr/src/gtest/build
   - cd /usr/src/gtest/build