[Ves] iOS kiwiviewer.xcodeproj Eigen compiler errors

[D C]

I have been trying to build the iOS kiwiviewer.xcodeproj.

All of the compiler errors have involved Eigen.

After much googling, I did the following to try to resolve the Eigen compile
error issues:

Rename main.m to main.mm
Place some of the Eigen header #includes before any others in
KiwiViewer-Prefix.pch
Try different compiler versions/settings in the Kiwiviewer Project Build
Settings

These steps did resolve several of the Eigen compiler errors.

I am now stuck on these Eigen compiler errors:

I have done a lot of googling on them, but cannot find the solution:

KiwiViewer Group
/VES/Apps/iOS/KiwiViewer/Eigen/src/Core/util/Macros.h
/VES/Apps/iOS/KiwiViewer/Eigen/src/Core/util/Macros.h:172:5: Unknown type
name 'namespace'
/VES/Apps/iOS/KiwiViewer/KiwiViewer/KiwiViewer-Prefix.pch:33:10: In file
included from 
/Users/davidcook/VES/Apps/iOS/KiwiViewer/KiwiViewer/KiwiViewer-Prefix.pch:33
:
/VES/Apps/iOS/KiwiViewer/Eigen/Core:20:10: In file included from
Eigen/Core:20:
/VES/Apps/iOS/KiwiViewer/Eigen/src/Core/util/Macros.h:172:20: Expected ';'
after top level declarator
/VES/Apps/iOS/KiwiViewer/KiwiViewer/KiwiViewer-Prefix.pch:33:10: In file
included from 
/Users/davidcook/VES/Apps/iOS/KiwiViewer/KiwiViewer/KiwiViewer-Prefix.pch:33
:
/VES/Apps/iOS/KiwiViewer/Eigen/Core:20:10: In file included from
Eigen/Core:20:
/VES/Apps/iOS/KiwiViewer/Eigen/Core
/VES/Apps/iOS/KiwiViewer/Eigen/Core:22:10: 'complex' file not found
/VES/Apps/iOS/KiwiViewer/KiwiViewer/KiwiViewer-Prefix.pch:33:10: In file
included from 
/Users/davidcook/VES/Apps/iOS/KiwiViewer/KiwiViewer/KiwiViewer-Prefix.pch:33
:

 
Appreciate your assistance.


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