176 lines
3.5 KiB
ReStructuredText
176 lines
3.5 KiB
ReStructuredText
llvm-config - Print LLVM compilation options
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============================================
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.. program:: llvm-config
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SYNOPSIS
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--------
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**llvm-config** *option* [*components*...]
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DESCRIPTION
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-----------
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**llvm-config** makes it easier to build applications that use LLVM. It can
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print the compiler flags, linker flags and object libraries needed to link
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against LLVM.
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EXAMPLES
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--------
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To link against the JIT:
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.. code-block:: sh
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g++ `llvm-config --cxxflags` -o HowToUseJIT.o -c HowToUseJIT.cpp
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g++ `llvm-config --ldflags` -o HowToUseJIT HowToUseJIT.o \
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`llvm-config --libs engine bcreader scalaropts`
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OPTIONS
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-------
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**--assertion-mode**
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Print the assertion mode used when LLVM was built (ON or OFF).
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**--bindir**
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Print the installation directory for LLVM binaries.
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**--build-mode**
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Print the build mode used when LLVM was built (e.g. Debug or Release).
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**--build-system**
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Print the build system used to build LLVM (e.g. `cmake` or `gn`).
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**--cflags**
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Print the C compiler flags needed to use LLVM headers.
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**--cmakedir**
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Print the installation directory for LLVM CMake modules.
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**--components**
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Print all valid component names.
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**--cppflags**
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Print the C preprocessor flags needed to use LLVM headers.
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**--cxxflags**
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Print the C++ compiler flags needed to use LLVM headers.
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**--has-rtti**
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Print whether or not LLVM was built with rtti (YES or NO).
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**--help**
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Print a summary of **llvm-config** arguments.
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**--host-target**
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Print the target triple used to configure LLVM.
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**--ignore-libllvm**
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Ignore libLLVM and link component libraries instead.
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**--includedir**
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Print the installation directory for LLVM headers.
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**--ldflags**
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Print the flags needed to link against LLVM libraries.
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**--libdir**
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Print the installation directory for LLVM libraries.
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**--libfiles**
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Similar to **--libs**, but print the full path to each library file. This is
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useful when creating makefile dependencies, to ensure that a tool is relinked if
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any library it uses changes.
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**--libnames**
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Similar to **--libs**, but prints the bare filenames of the libraries
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without **-l** or pathnames. Useful for linking against a not-yet-installed
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copy of LLVM.
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**--libs**
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Print all the libraries needed to link against the specified LLVM
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*components*, including any dependencies.
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**--link-shared**
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Link the components as shared libraries.
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**--link-static**
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Link the component libraries statically.
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**--obj-root**
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Print the object root used to build LLVM.
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**--prefix**
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Print the installation prefix for LLVM.
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**--shared-mode**
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Print how the provided components can be collectively linked (`shared` or `static`).
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**--src-root**
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Print the source root from which LLVM was built.
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**--system-libs**
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Print all the system libraries needed to link against the specified LLVM
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*components*, including any dependencies.
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**--targets-built**
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Print the component names for all targets supported by this copy of LLVM.
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**--version**
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Print the version number of LLVM.
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COMPONENTS
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----------
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To print a list of all available components, run **llvm-config
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--components**. In most cases, components correspond directly to LLVM
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libraries. Useful "virtual" components include:
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**all**
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Includes all LLVM libraries. The default if no components are specified.
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**backend**
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Includes either a native backend or the C backend.
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**engine**
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Includes either a native JIT or the bitcode interpreter.
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EXIT STATUS
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-----------
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If **llvm-config** succeeds, it will exit with 0. Otherwise, if an error
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occurs, it will exit with a non-zero value.
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