[eigen] Dev branch: Name clash with termios system header

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Hi all,

We recently updated from the stable to the development branch of eigen to try out the new SVD implementations. In doing so we encountered a nasty name clash, which is not eigen's fault, but for archival purposes I think it's good to comment it here on the list, just in case someone else bumps into it.

It turns out that including termios.h (definitions used by the terminal I/O interfaces) defines the macro B0 (specific offending header: bits/termios.h), which incidentally is a local variable in Core/products/GeneralBlockPanelKernel.h. We currently get away with the situation by undefing B0 in the corresponding file, but this is an ugly hack in the long run. Since there is no chance that those legacy termios macros will change, could it be possible to rename the temporaries in  Core/products/GeneralBlockPanelKernel.h to slightly less generic names? (prepending/appending 1-2 characters should be enough).

Thanks in advance,


Adolfo Rodríguez Tsouroukdissian, Ph. D.

Robotics engineer
Tel. +34.93.414.53.47
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