Support new and discontinue old compilers

[Stephan Bergmann]

On 02/15/2017 04:22 PM, Stephan Bergmann wrote:
> On 02/15/2017 02:39 PM, marius adrian popa wrote:
>> I will check the issue with Firebird
>>
>> http://paste.openstack.org/show/594333/
>
> I at least don't see that problem with a build of recent LO master
> against MSVC 2015.  Building external/firebird works fine for me.

Ah, seeing the commit message of 
<https://cgit.freedesktop.org/libreoffice/core/commit/?id=b862cbdd345ec57c2595629ded6a3969e1e65d56> 
"Support MSVC 15.0", that issue is probably specific to MSVC 2017, 
unrelated to MSVC 2015.