[LLVMdev] LLVM pre-built libraries download? (OBJ_ROOT structure)

Javier Martinez javier at jmartinez.org
Fri Jul 10 23:18:54 PDT 2009

Hi Lance,

I know getting started in LLVM is daunting but hang in there. Have you 
tried using CMake to build LLVM? If not I suggest you try there. If you 
don't need mingw but just work under Windows I can provide binaries for 


On 7/10/2009 10:31 PM, Lance de La Haye wrote:
> I am just beginning to use LLVM, and find that 'getting started' is the
> steep part of the learning curve. I am using MingW and msys, which I have
> not fully grokked yet.
> Anyway, actually building the libraries from source is turning out to be
> difficult. I want to work with LLVM as described in the except from the LLVM
> FAQ below. I am using C++, so the FFI is a non-issue.
> Can someone supply me with a download link for a fully built LLVM OBJ_ROOT
> directory structure/libraries/object files, for MinGW?
> And can I suggest that such a thing be made available on the LLVM downloads
> page? It would avoid a pretty steep learning curve, to get
> mingw/msys/gnuwin32 packages cooperating enough to get LLVM built.
> I have looked at the MinGW binaries package (llvm-2.5-x86-mingw32.tar.bz2)
> and this doesn't seem to be what I need.
> ==================================================================================
> > From LLVM FAQs : http://llvm.org/docs/FAQ.html#langirgen
> I'd like to write a self-hosting LLVM compiler. How should I interface with
> the LLVM middle-end optimizers and back-end code generators?
> Your compiler front-end will communicate with LLVM by creating a module in
> the LLVM intermediate representation (IR) format. Assuming you want to write
> your language's compiler in the language itself (rather than C++), there are
> 3 major ways to tackle generating LLVM IR from a front-end:
>    a.. Call into the LLVM libraries code using your language's FFI (foreign
> function interface).
>      a.. for: best tracks changes to the LLVM IR, .ll syntax, and .bc format
>      b.. for: enables running LLVM optimization passes without a emit/parse
> overhead
>      c.. for: adapts well to a JIT context
>      d.. against: lots of ugly glue code to write
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