message: Fix Travis to install flex on macOS
diff: @@ -180,8 +180,9 @@ jobs:
  - wget $LLVM_REPO/releases/download/llvm-$LLVM_VERSION-ispc-dev/$LLVM_TAR
  - tar xvf $LLVM_TAR
  - export PATH=`pwd`/bin-$LLVM_VERSION/bin:$PATH
  - - brew update && brew install bison
  + - brew update && brew install bison flex
  - export PATH=/usr/local/opt/bison/bin:$PATH
  + - export PATH=/usr/local/opt/flex/bin:$PATH
  script:
  - mkdir build && cd build
  - cmake ..
  