[ITK-dev] LSQR (and related VNL code) Licensing Issues - fix lost

[Tom Vercauteren]

Dear all,

Sorry for the cross-posting but this refers to an issue linking both ITK
and VNL.

In 2010, we identified a licensing issue with some code from vnl and at the
time Luis Ibanez fixed it from the ITK side:
https://issues.itk.org/jira/browse/HISTITK-1160

Luis notably rewrote the LSQR code:
https://github.com/InsightSoftwareConsortium/ITK/tree/release-3.20/Utilities/vxl/v3p/netlib/linalg
http://svn.na-mic.org/NAMICSandBox/trunk/SparseLinearSolverConversion/C++/
https://github.com/InsightSoftwareConsortium/ITK/commits/release-3.20/Utilities/vxl/v3p/netlib/linalg

It seems that this effort was not backported to VXL and was subsequently
lost when moving to ITK 4:
https://github.com/InsightSoftwareConsortium/ITK/tree/master/Modules/ThirdParty/VNL/src/vxl/v3p/netlib/linalg

It would be great if someone could look into this (important) licensing
issue.

For the only purpose of LSQR, I copied the LSQR NAMICSandBox code in a
standalone github repo here:
https://github.com/tvercaut/LSQR-cpp

I have also added a comment in the ITK and VXL bug trackers:
https://issues.itk.org/jira/browse/HISTITK-1160
https://github.com/vxl/vxl/issues/332

Best wishes,
Tom
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