cling/README.md

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1. INSTALLATION

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1.1. Binaries We offer binary snapshots for download at https://ecsft.cern.ch/dist/cling

1.2 Source

CLING source depends on the LLVM[1] and CLANG[2] headers and libraries. You will also need CMake[3] >= 2.6.1 or GNU Make to build all of those packages and subversion[4] and git[5] to get the source code.

[1] http://llvm.org [2] http://clang.llvm.org [3] http://cmake.org [4] http://subversion.tigris.org [5] http://git-scm.com

1.2.1 Building

Building LLVM and CLANG you must:

• Check out the sources:

  git clone http://root.cern.ch/git/llvm.git src cd src git checkout cling-patches cd tools git clone http://root.cern.ch/git/cling.git git clone http://root.cern.ch/git/clang.git cd clang git checkout cling-patches

• Configure, build and install them, either using CMake:

  cd .. mkdir build cd build cmake -DCMAKE_INSTALL_PREFIX=/some/install/dir
  -DLLVM_TARGETS_TO_BUILD=CBackend;CppBackend;X86
  -DCMAKE_BUILD_TYPE=Debug
  ../src make make install

  or GNU Make (see ../src/configure --help for all options):

  cd .. mkdir build cd build ../src/configure --prefix=/some/install/dir make make install

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2. USAGE

   To get started run: /some/install/dir/bin/cling --help or type /some/install/dir/bin/cling [cling]$ .help

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3. Developers' corner: We have doxygen documentation of cling's code at: http://cling.web.cern.ch/cling/doxygen/

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