DEVELOPMENT-NOTES

* 2023-0107-2301-50-EST

Updated ERFA to 2.0.0. Had to define several version macro symbols by hand. Also
added header files to get DBL_EPSILON definition.

* 2019-1217-1615-10-EST

DartConfiguration.tcl in cmake-build directory has options concerning the build.

In particular for valgrind there is a
ValgrindCommandOptions: --track-origins=yes

but maybe I should use instead...
MemoryCheckCommandOptions:  --track-origins=yes

Note: https://stackoverflow.com/questions/52730994/how-to-pass-arguments-to-memcheck-with-ctest

* 2019-0811-1815-DST

Which classes use or depend on SpatialIndex? We need to be concerned about default SpatialIndexes showing up.

RangeConvex.h:
const SpatialIndex * index_;    // A pointer to the index

An index is passed into RangeConvex, which then uses it for intersections etc. 

SpatialDomain.h:
const SpatialIndex *index;            /// A pointer to the index

SpatialEdge.h:
SpatialIndex & tree_;

SpatialInterface.h:
SpatialIndex *index_;

STARE.h:
SpatialIndex    sIndex;

* 2019-0810-2331-DST

Can we remove intervals from a range?

* 2019-0809-22231-DST

** Be very careful when calling HTM library from STARE, particularly when the HTM code makes SpatialIndexes. The legacy SpatialIndex default constructor is different from the SpatialIndex created by STARE.