[Mesa-dev] [PATCH] configure.ac: handle llvm built with cmake in one shared library.

[Dave Airlie]

On 29 September 2015 at 11:31, Tom Stellard <tom at stellard.net> wrote:
> On Mon, Sep 28, 2015 at 03:15:27PM +0100, Emil Velikov wrote:
>> Hi Laurent,
>>
>> On 27 September 2015 at 13:21, Laurent Carlier <lordheavym at gmail.com> wrote:
>> > llvm can be built with cmake in a libray with the name libLLVM.so.$version
>> >
>> Do you know if this is intentional and consistent (i.e. all the build
>> produce such library/ies) behaviour ?
>>
>
> The name of the library depends on the build system used and not the
> version of LLVM.  There was a flag added to llvm-config in 3.8 to
> report which build system was used.

This is totally broken upstream, and I suggest we don't facilitate the cmake
behaviour in mesa until it just does what the autoconf build does.

libLLVM.so.3.7 is not going to be compatible ABI wise with libLLVM.so.3.8
but ldconfig versioning will consider it to be.

the llvm cmake behaviour is just broken and should be fixed upstream.

Dave.