48b4a4e934
the callbacks must be triggered for those, too. As they are not part of a transaction (think "module") they are now sent to the deserialization listener. This can be removed once the modules work. Set the state of the transaction to Committing before the static init - which might trigger more decls even though CodeGen has been run over the decls. Forward DeclCollector::HandleInterestingDecl() to DeclCollector::HandleTopLevelDecl() for decls from the AST reader / from headers describing libraries. Empty transactions must be passed to TCling; they trigger the sending of deserialized decls to ROOT/Meta. Don't start TCling's artificial TU Transaction if the transaction coming in is empty - we need a decl to get the ASTContext. Swap the deserialized decls before handling them in TCling, such that nested calls don't see the same decls again. git-svn-id: http://root.cern.ch/svn/root/trunk@49197 27541ba8-7e3a-0410-8455-c3a389f83636
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1. I N S T A L L A T I O N I N S T R U C T I O N S
1.1 Dependencies
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] to get the source code.
[1] http://llvm.org
[2] http://clang.llvm.org
[3] http://cmake.org
[4] http://subversion.tigris.org/
1.2 Building
To build LLVM and CLANG you must:
* Check out the sources:
mkdir src
cd src
svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm
cd llvm/tools
svn co http://llvm.org/svn/llvm-project/cfe/trunk clang
svn co http://root.cern.ch/svn/root/trunk/interpreter/cling cling
cd ..
* Apply some patches
cat tools/cling/patches/* | patch -p0
* 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 \
-DCMAKE_CXX_COMPILER=`which c++` \
-DCMAKE_C_COMPILER=`which gcc` \
../llvm
make
make install
or GNU Make (see ../src/configure --help for all options):
cd ..
mkdir build
cd build
../llvm/configure --prefix=/some/install/dir
make
make install
2. U S A G E
To interpret a C file type: "./cling test.c". To invoke cling in the
interactive mode type "cling" without file name. Use ".L filename" to
load libraries or C++ files. Type C++ code at the prompt to interpret it.