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//===----------------------------------------------------------------------===//
// Clang Installation Instructions
//===----------------------------------------------------------------------===//

These instructions describe how to build and install Clang.

//===----------------------------------------------------------------------===//
// Step 1: Organization
//===----------------------------------------------------------------------===//

Clang is designed to be built as part of an LLVM build. Assuming that the LLVM
source code is located at $LLVM_SRC_ROOT, then the clang source code should be
installed as:

  $LLVM_SRC_ROOT/tools/clang

The directory is not required to be called clang, but doing so will allow the
LLVM build system to automatically recognize it and build it along with LLVM.

//===----------------------------------------------------------------------===//
// Step 2: Configure and Build LLVM
//===----------------------------------------------------------------------===//

Configure and build your copy of LLVM (see $LLVM_SRC_ROOT/GettingStarted.html
for more information).

Assuming you installed clang at $LLVM_SRC_ROOT/tools/clang then Clang will
automatically be built with LLVM. Otherwise, run 'make' in the Clang source
directory to build Clang.

//===----------------------------------------------------------------------===//
// Step 3: (Optional) Verify Your Build
//===----------------------------------------------------------------------===//

It is a good idea to run the Clang tests to make sure your build works
correctly. From inside the Clang build directory, run 'make test' to run the
tests.

//===----------------------------------------------------------------------===//
// Step 4: Install Clang
//===----------------------------------------------------------------------===//

From inside the Clang build directory, run 'make install' to install the Clang
compiler and header files into the prefix directory selected when LLVM was
configured.

The Clang compiler is available as 'clang' and supports a gcc like command line
interface. See the man page for clang (installed into $prefix/share/man/man1)
for more information.
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