[lld] Makefiles for lld.

[Iain Sandoe]

Hi Alp,

On 29 May 2014, at 21:50, Alp Toker wrote:

> On 29/05/2014 22:32, Eric Christopher wrote:
>> The motivation for this is that we have two build systems already,
>> they're easy to keep up to date anyhow, and we do this for the rest of
>> llvm.
> 
> The concern with multiple build systems is more to do with the chilling effect.
> 
> We all know that feeling when you *should* go and fix it, only that you don't have a Makefile build around, or you're on Windows / BSD or some place, so you just end up lumping things into an existing module that happens to already exist in both.
> 
>> 
>> Otherwise it's motivating for people to get us to one build system so
>> they don't have to do the work :)
> 
> A better motivator would be to cite the remaining issues with CMake.

that's a good idea.

..  my (probably flawed) understanding is that there are known issues with phasing build dependencies that are already being addressed upstream.  However, I will defer to someone who knows the facts.

Personally, I currently have external constraints that predicate using the config & make solution .. and offer the Makefiles upstream in case anyone else can similarly benefit (for the last year or so I've been using them locally).

> I always feel that we're missing out on cool stuff like better DLL / shared builds and various bits of module cleanup because whoever takes on the challenge would have to implement it twice, compatibly, which stops being fun.

My 0.02GBP is that if we are worried that a working solution to a problem today will prevent people implementing a better solution tomorrow, then we have a wider issues to address than a few Makefiles ;)

anyway, the files are posted if anyone wants them.

cheers
Iain

> 
> Alp.
> 
> 
>> 
>> -eric
>> 
>> On Thu, May 29, 2014 at 12:30 PM, Nick Kledzik <kledzik at apple.com> wrote:
>>> What is the motivation for this?  And who is expected to keep them up to date as lld evolves?  Currently, everyone working on lld uses the cmake system.
>>> 
>>> -Nick
>>> 
>>> On May 28, 2014, at 8:08 AM, Iain Sandoe <iain at codesourcery.com> wrote:
>>>> Hi Eric,
>>>> 
>>>> sorry this took so long, (other things just kept creeping up the TODO).
>>>> 
>>>> This is a set of Makefiles based on the approach(es) used elsewhere in the tree.
>>>> I've been using these for quite a while on both OSX and Linux with either clang or GCC as the bootstrap compiler.
>>>> 
>>>> With this patch, lld will build (with autoconf & make) when it is found in llvm/tools (using the same approach as lldb).
>>>> 
>>>> Right now, as with lldb, there's no more finesse than that (i.e. there's no way to switch lld on/off other than directory presence/absence in tools/).
>>>> 
>>>> The lld tests are added to check-all.
>>>> 
>>>> does this seem like a reasonable starting point?
>>>> cheers
>>>> Iain
>>>> 
>>>> <lld-add-build-with-make.txt>
>>>> 
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