[pcl_ml] both pcl_ml and QtGui defines QMatrix

[maz-1]

Describe the bug

Both pcl_ml and qtgui defines QMatrix, if i link both pcl_ml and QtGui statically i get duplicate symbols error

Context

Expected behavior

No duplicate symbols when link both pcl_ml and qtgui

Current Behavior

link both pcl_ml and QtGui statically cause duplicate symbols error

To Reproduce

Link a cmake project with both static qt5 and pcl

Screenshots/Code snippets

In order to help explain your problem, please consider adding

• screenshots of the GUI issues
• code snippets: syntax for code with correct language highlights

Your Environment (please complete the following information):

• OS: windows 10
• Compiler: MSVC 14.16.27023
• PCL Version: 1.12.0

Possible Solution

AFAIK QMatrix is not used outside ml/src/svm.cpp so it should be safe to rename it

Additional context

Add any other context about the problem here.

[mvieth]

Yes, renaming it or putting it into a namespace should solve the issue. Would you be interested in opening a pull request?