Updated travis config

Author: yushulx

.travis.yml

@@ -21,7 +21,6 @@ jobs:
         - sudo dpkg --add-architecture armhf
         - sudo apt-get update
         - sudo apt-get install crossbuild-essential-armhf libc6:armhf libstdc++6:armhf
-        - CC=arm-linux-gnueabihf-gcc
 
 branches:
   only:
@@ -34,6 +33,9 @@ script:
         cmake -DCMAKE_GENERATOR_PLATFORM=x64 ..;
       else
         if [ $OS == "arm32_linux" ]; then
+          export CC=arm-linux-gnueabihf-gcc;
+          export CXX=arm-linux-gnueabihf-g++;
+          export AR=arm-linux-gnueabihf-ar;
           cmake -DARM32_BUILD=TRUE ..;
         else
           cmake ..;

README.md

@@ -1,7 +1,7 @@
 # Building C/C++ Barcode Reader with CMake
 
 [![release](https://img.shields.io/github/release/Dynamsoft/cmake.svg)](https://github.com/Dynamsoft/cmake/releases/latest)
-![](https://api.travis-ci.com/Dynamsoft/cmake.svg?branch=master)
+[![status](https://api.travis-ci.com/Dynamsoft/cmake.svg?branch=master)](https://travis-ci.com/github/Dynamsoft/cmake)
 
 ## Requirements
 - [Visual Studio](https://www.visualstudio.com/downloads/)