Merge branch 'master' of https://github.com/mutouyun/cpp-ipc

.travis.yml

@@ -4,10 +4,21 @@ dist: xenial
 matrix:
   include:
     - os: linux
-      compiler: gcc
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-7
+      env:
+        - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"
+
     - os: linux
       compiler: clang
 
+before_install:
+    - eval "${MATRIX_EVAL}"
+
 install:
   - sudo apt-get update
   - sudo apt-get install qt5-qmake libqt5test5