llvm-config(1) - Linux man page

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>).