llvm-config - Print LLVM compilation options
llvm-config option [components…]
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.
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`
–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)
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 libraries. 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.
If llvm-config succeeds, it will exit with 0. Otherwise, if
an error occurs, it will exit with a non-zero value.
Maintained by the LLVM Team (https://llvm.org/).