try to fix travis build

.travis.yml

@@ -20,14 +20,11 @@ install:
  - if [ "$CXX" = "g++" ]; then export CXX="ccache g++-5" CC="ccache gcc-5"; fi
  - if [ "$CXX" = "clang++" ]; then export CXX="ccache clang++-3.7" CC="ccache clang-3.7"; fi
  - curl https://cmake.org/files/v3.4/cmake-3.4.0-Linux-x86_64.tar.gz | tar -xzf -
- - curl http://www.llvm.org/releases/3.7.0/llvm-3.7.0.src.tar.xz | tar -xJf -
- - mkdir $TRAVIS_BUILD_DIR/llvm-3.7.0.src/build
- - cd $TRAVIS_BUILD_DIR/llvm-3.7.0.src/build && $TRAVIS_BUILD_DIR/cmake-3.4.0-Linux-x86_64/bin/cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/tmp/LLVM37 -DLLVM_TARGETS_TO_BUILD="X86" ..
- - cd $TRAVIS_BUILD_DIR/llvm-3.7.0.src/build && make install
+ - curl http://releases.llvm.org/6.0.1/clang+llvm-6.0.1-x86_64-linux-gnu-ubuntu-14.04.tar.xz | tar -xJf -
 script:
  - if [ "$CXX" = "g++" ]; then export CXX="ccache g++-5" CC="ccache gcc-5"; fi
  - if [ "$CXX" = "clang++" ]; then export CXX="ccache clang++-3.7" CC="ccache clang-3.7"; fi
  - mkdir $TRAVIS_BUILD_DIR/build
- - cd $TRAVIS_BUILD_DIR/build && $TRAVIS_BUILD_DIR/cmake-3.4.0-Linux-x86_64/bin/cmake -DCMAKE_BUILD_TYPE=Debug -DLLVM_DIR=/tmp/LLVM37/share/llvm/cmake -G "Unix Makefiles" -DLLVM_JIT=ON ..
+ - cd $TRAVIS_BUILD_DIR/build && $TRAVIS_BUILD_DIR/cmake-3.4.0-Linux-x86_64/bin/cmake -DCMAKE_BUILD_TYPE=Debug -DLLVM_DIR=$TRAVIS_BUILD_DIR/clang+llvm-6.0.1-x86_64-linux-gnu-ubuntu-14.04/lib/cmake/llvm -G "Unix Makefiles" -DLLVM_JIT=ON ..
  - cd $TRAVIS_BUILD_DIR/build && make
  - cd $TRAVIS_BUILD_DIR/lua-tests && sh ./run_travis_tests.sh $TRAVIS_BUILD_DIR/build/ravi