Fix addressing variables in travis

.travis.yml

@@ -8,9 +8,9 @@ os:
 sudo: true
 before_script:
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install gcc-multilib g++-multilib; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" && "CC" == "gcc" ]]; then sudo apt-get install mingw-w64-i686-dev binutils-mingw-w64-i686 gcc-mingw-w64-i686 g++-mingw-w64-i686; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" && "$CC" == "gcc" ]]; then sudo apt-get install mingw-w64-i686-dev binutils-mingw-w64-i686 gcc-mingw-w64-i686 g++-mingw-w64-i686; fi
 script:
   - mkdir -p build && cd build
   - cmake ../ -DCMAKE_EXE_LINKER_FLAGS="-Wl,--no-undefined" -DUSE_VOICEMGR=0 && make -j3 && rm -rf *
   - cmake ../ -DCMAKE_EXE_LINKER_FLAGS="-Wl,--no-undefined" -DUSE_VOICEMGR=1 && make -j3 && rm -rf *
-  - if [[ "$TRAVIS_OS_NAME" == "linux" && "CC" == "gcc" ]]; then cd ..; mkdir build-mingw; cd build-mingw; cmake ../ -DCMAKE_SYSTEM_NAME=Windows -DCMAKE_C_COMPILER=i686-w64-mingw32-gcc -DCMAKE_CXX_COMPILER=i686-w64-mingw32-g++; make -j3; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" && "$CC" == "gcc" ]]; then cd ..; mkdir build-mingw; cd build-mingw; cmake ../ -DCMAKE_SYSTEM_NAME=Windows -DCMAKE_C_COMPILER=i686-w64-mingw32-gcc -DCMAKE_CXX_COMPILER=i686-w64-mingw32-g++ && make -j3; fi