Re: Visual Studio 2013/2015/2017 compatibility and libraries

[Pascal Quantin <pascal.quantin () gmail com>]

Hi Peter

2017-04-24 15:43 GMT+02:00 Peter Wu <peter () lekensteyn nl>:

> Hi,
>
> Are there possible issues to be aware of when using the libraries (built
> with mingw/msvc2013) with the Wireshark binaries built with VS2017?
> When trying it with a friend, it seems to build and run with no issues.
>
> I thought that there can be problems with combining different MSVC
> runtime versions in one binary? Looking through the libraries, it seems
> that there is a combination of at least MingW (GeoIP?) and MSVC (Lua).
> (And apparently VS2015 (14.0) and VS2017 (14.1) are binary compatible.)

Just a side note: most of our 3rd party libraries are compiled with
MinGW(32|64) except zlib (that we compile from scratch if I remember
properly, cannot check right now), Lua for 2.0.X and 2.2.X and Qt.
Historically we were using a MinGW Lua build but that was triggering a
specific MinGW bug and we switched to MSVC based Lua library to work around
this. But it required us to package Lua for every supported MSVC variants
(as you need to have the corresponding C runtime installed on your PC while
Wireshark installer packages the C runtime of the version you used to
compile), which was painful. That's also why it is highly suggested to
install the Qt package matching the MSVC version you intend to use for
compilation.
Since the MinGW bug was fixed, so master branch is again using the MinGW
based Lua library. The only pre-compiled 3rd party package built with MSVC
I can think to right now is Qt. As of today they offer MSVC2013 and
MSVC2015 flavors (there is also a MinGW build but for 32 bits only). It
looks like Qt 5.9 will provide a MSVC2017 version according to
http://lists.qt-project.org/pipermail/development/2016-December/028159.html

I think Graham proposed to discuss which MSVC to use (for 2.5 I guess)
during Sharkfest US.

Pascal.


> Note: I am developing for Linux and know little about the MS ecosystem,
> but for testing under Windows, VS2015 or newer is attractive because you
> can install a subset of the tools without pulling the full bloat of VS
> (using Visual C++ Build Tools).
> --
> Kind regards,
> Peter Wu
> https://lekensteyn.nl
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