[llvm-dev] Building SVN head with CMake - shared libraries?

[Chris Bieneman via llvm-dev]

> On Jan 14, 2016, at 11:22 AM, Mehdi Amini <mehdi.amini at apple.com> wrote:
> 
>> 
>> On Jan 14, 2016, at 9:38 AM, Chris Bieneman via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>> 
>> 
>>> On Jan 14, 2016, at 5:18 AM, Dan Liew <dan at su-root.co.uk> wrote:
>>> 
>>> On 14 January 2016 at 11:24, David Jones via llvm-dev
>>> <llvm-dev at lists.llvm.org> wrote:
>>>> Thanks - I'll try this tonight.
>>>> 
>>>> Assuming it works, should these variables be added to the docs at
>>>> http://llvm.org/docs/CMake.html ?
>>> 
>>> Yes.
>> 
>> It probably makes sense to add LLVM_BUILD_LLVM_DYLIB, but I would discourage adding BUILD_SHARED_LIBS to that document. BUILD_SHARED_LIBS is rarely what people actually want, and a lot of people gravitate to it because the wording is similar to the autoconf —enable-shared flag.
> 
> Considering that BUILD_SHARED_LIBS is rarely what people want, wouldn’t it make sense to document it to explicitly discourage people from using it and avoid them surprising behavior? 

Honestly, I’m not sure *anyone* actually wants that behavior, and I’d kinda like to remove the option entirely.

> (By the way, the name is quite tempting to be used wrongly, it would benefit a rename maybe).

Yea, at the very least we need a rename. It also violates the ${Project}_* naming convention.

-Chris

> 
> — 
> Mehdi
> 
> 
> 
>> 
>>> 
>>> We should probably be updating [1] too given that this document talks
>>> exclusively about compiling with the Autoconf/Makefile build system.
>> 
>> Yes, we should update that too. I actually have been meaning to put a section up there documenting the Apple Clang packaging because that is almost entirely open source now. I’ll try to get that done this week.
>> 
>>> 
>>> @Hans @Chris:
>>> 
>>> Should the packaging instructions refer to the CMake or
>>> Autoconf/Makefile build system for the LLVM 3.8 release?
>> 
>> Maybe, I’ll defer that to Hans. I believe the packaging scripts are on CMake, so we’ve at least gotten that far.
>> 
>>> 
>>> 
>>> [1] http://llvm.org/docs/Packaging.html
>> 
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