In file included from /wrkdirs/usr/ports/science/kalzium-kde4/work/kalzium-4.14.3/src/kalzium.cpp:44: In file included from /wrkdirs/usr/ports/science/kalzium-kde4/work/kalzium-4.14.3/src/tools/moleculeview.h:19: In file included from src/ui_moleculeviewerwidget.h:29: In file included from /wrkdirs/usr/ports/science/kalzium-kde4/work/kalzium-4.14.3/src/tools/../../compoundviewer/kalziumglwidget.h:17: In file included from /usr/local/include/avogadro/glwidget.h:34: In file included from /usr/local/include/eigen3/Eigen/Core:491: /usr/local/include/eigen3/Eigen/src/Core/products/GeneralBlockPanelKernel.h:1589:30: error: expected unqualified-id SResPacketHalf R = res.template gatherPacket<SResPacketHalf>(i, j2); ^ /wrkdirs/usr/ports/science/kalzium-kde4/work/kalzium-4.14.3/src/calculator/gasCalculator.h:31:11: note: expanded from macro 'R' #define R 0.08206 ^ In file included from /wrkdirs/usr/ports/science/kalzium-kde4/work/kalzium-4.14.3/src/kalzium.cpp:44: In file included from /wrkdirs/usr/ports/science/kalzium-kde4/work/kalzium-4.14.3/src/tools/moleculeview.h:19: In file included from src/ui_moleculeviewerwidget.h:29: Log URL: http://beefy5.nyi.freebsd.org/data/104i386-default/482808/logs/kalzium-kde4-4.14.3_5.log Found during the FreeBSD port build.
This was updated to a const double R = 0.08206 (https://invent.kde.org/education/kalzium/-/commit/1eee121af8f734667143617ac677ca0807c512c5, in 2016) Can you test with a more recent version?