I noticed in the CMakeError.log file the following:
C:\Program Files (x86)\Microsoft Visual
Studio\2019\Community\MSBuild\Microsoft\VC\v160\Microsoft.CppBuild.targets(458,5):
error MSB8040: Spectre-mitigated libraries are required for this project.
Install them from the Visual Studio installer (Individual components tab) for
any toolsets and architectures being used. Learn more: https://aka.ms/Ofhn4c
I installed the Spectre-mitigated libraries and this error message no longer
appears. CMake also now reports:
Performing C SOURCE FILE Test C_Qspectre_VALID succeeded
Performing C++ SOURCE FILE Test CXX_Qspectre_VALID succeeded
However, it seems the Windows buildbots[1][2][3] do not have these
Spectre-mitigated libraries installed, because in the most recent CMake stdio
output from the two Windows master builders, Windows Server 2019 x64 and
Windows Server 2019 x86, I see:
-- Performing Test C_Qspectre_VALID
-- Performing Test C_Qspectre_VALID - Failed
-- Performing Test CXX_Qspectre_VALID
-- Performing Test CXX_Qspectre_VALID - Failed
Should the Spectre-mitigated libraries be installed on all Windows buildbots,
and should the Wireshark Developer's Guide[4] be updated to inform developers
to also install them?
- Chris
[1]: https://buildbot.wireshark.org/wireshark-master/waterfall
[2]: https://buildbot.wireshark.org/wireshark-3.4/waterfall
[3]: https://buildbot.wireshark.org/wireshark-3.2/waterfall
[3]:
https://www.wireshark.org/docs/wsdg_html_chunked/ChSetupWin32.html#ChSetupMSVC
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