Build Error

[Kirill Rumiantsev]

Hi,

I am trying to build Chrono from the source

Windows 11

with C:\msys64\ucrt64\bin\g++.exe compiler

I am getting the following errors:

[build] C:/Users/fundu/chrono/src/chrono/core/ChCoordsys.cpp:17:32: error: external linkage required for symbol 'chrono::CSYSNULL' because of 'dllexport' attribute

[build]    17 | ChApi const ChCoordsys<double> CSYSNULL(ChVector<>(0, 0, 0), ChQuaternion<>(0, 0, 0, 0));

[build]       |                                ^~~~~~~~

[build] C:/Users/fundu/chrono/src/chrono/core/ChCoordsys.cpp:18:32: error: external linkage required for symbol 'chrono::CSYSNORM' because of 'dllexport' attribute

[build]    18 | ChApi const ChCoordsys<double> CSYSNORM(ChVector<>(0, 0, 0), ChQuaternion<>(1, 0, 0, 0));

[build]       |                                ^~~~~~~~

Thank you, Kirill. 

[Radu Serban]

Kirill, thanks for pointing this out. I pushed a commit that I assume will fix this issue. Visual Studio did not flag this as a problem (also why this slipped through the cracks until now).

Please let me know if the latest code in the 'main' branch builds past this point and also if you see similar issues in other Chrono modules (I only fixed the problem in the core module).

--Radu

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From: projec...@googlegroups.com <projec...@googlegroups.com> on behalf of Kirill Rumiantsev <fund...@gmail.com>
Sent: Saturday, December 17, 2022, 2:11 PM
To: ProjectChrono <projec...@googlegroups.com>
Subject: [chrono] Build Error

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