llvm dev - Sep 2014 - [LLVMdev] Can't build LLVM examples | unknown component name: jit

I have built LLVM & Clang according to the docs at
http://clang.llvm.org/get_started.html

When I cd BUILD_DIR/examples and type make the system responds,

llvm-config: unknown component name: jit
make[1]: Entering directory `/work/make_llvm/examples/BrainF'
/work/llvm/Makefile.rules:1071: *** llvm-config --libs failed.  Stop.
make[1]: Leaving directory `/work/make_llvm/examples/BrainF'
make: *** [BrainF/.makeall] Error 2

Seems like there's no JIT support, or llvm-config can't find it. But
LLVM compiles with JIT support enabled by default according configure
--help, and I see at least one JIT related library called
libLLVMMCJIT.a in /work/my_llvm/lib.

How do I build the LLVM examples? Apparently there has been a
reorganisation of the JIT component in LLVM, and I'm told this example
may have been left behind.

Thanks!

-- Charlie

On 5 Sep 2014, at 12:22, Charles Turner wrote:
> I have built LLVM & Clang according to the docs at
> http://clang.llvm.org/get_started.html
> 
> When I cd BUILD_DIR/examples and type make the system responds,
> 
> llvm-config: unknown component name: jit
> make[1]: Entering directory `/work/make_llvm/examples/BrainF'
> /work/llvm/Makefile.rules:1071: *** llvm-config --libs failed.  Stop.
> make[1]: Leaving directory `/work/make_llvm/examples/BrainF'
> make: *** [BrainF/.makeall] Error 2
> 
> Seems like there's no JIT support, or llvm-config can't find it.
But
> LLVM compiles with JIT support enabled by default according configure
> --help, and I see at least one JIT related library called
> libLLVMMCJIT.a in /work/my_llvm/lib.
> 
> How do I build the LLVM examples? Apparently there has been a
> reorganisation of the JIT component in LLVM, and I'm told this example
> may have been left behind.
There was a short period where the jit had been removed, but the examples had
not been updated.

I believe this should be fixed by:
r217031 - fixes for the llvm/examples.
r217032 - fixes for clang-interpreter.

if you are buuilding a later revision and still seeing problems, please let me
know what platform and how you are configuring.

cheers
Iain