# NAME

llvm-config - Print LLVM compilation options

# SYNOPSIS

llvm-config option [components...]

# DESCRIPTION

llvm-config makes it easier to build applications that use LLVM. It can print the compiler flags, linker flags and object libraries needed to link against LLVM.

# EXAMPLES

To link against the JIT:

      g++ `llvm-config --cxxflags` -o HowToUseJIT.o -c HowToUseJIT.cpp
      g++ `llvm-config --ldflags` -o HowToUseJIT HowToUseJIT.o \
          `llvm-config --libs engine bcreader scalaropts`

# OPTIONS

--version

  Print the version number of LLVM.

--help

  Print a summary of llvm-config arguments.

--prefix

  Print the installation prefix for LLVM.

--src-root

  Print the source root from which LLVM was built.

--obj-root

  Print the object root used to build LLVM.

--bindir

  Print the installation directory for LLVM binaries.

--includedir

  Print the installation directory for LLVM headers.

--libdir

  Print the installation directory for LLVM libraries.

--cxxflags

  Print the C++ compiler flags needed to use LLVM headers.

--ldflags

  Print the flags needed to link against LLVM libraries.

--libs

  Print all the libraries needed to link against the specified LLVM components, including any dependencies.

--libnames

  Similar to --libs, but prints the bare filenames of the libraries without -l or pathnames. Useful for linking against a not-yet-installed copy of LLVM.

--libfiles

  Similar to --libs, but print the full path to each library file. This is useful when creating makefile dependencies, to ensure that a tool is relinked if any library it uses changes.

--components

  Print all valid component names.

--targets-built

  Print the component names for all targets supported by this copy of LLVM.

--build-mode

  Print the build mode used when LLVM was built (e.g. Debug or Release)

# COMPONENTS

To print a list of all available components, run llvm-config --components. In most cases, components correspond directly to LLVM libraries. Useful "virtual" components include:

all

  Includes all LLVM libaries. The default if no components are specified.

backend

  Includes either a native backend or the C backend.

engine

  Includes either a native JIT or the bitcode interpreter.

# EXIT STATUS

If llvm-config succeeds, it will exit with 0. Otherwise, if an error occurs, it will exit with a non-zero value.

# AUTHORS

Maintained by the LLVM Team (http://llvm.org).