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I've noticed that in the FloatMathPlugin there is fdlibm (freely distributable libm) :
This refers to the platforms/Cross/third-party/fdlibm
I wonder whether the VM shouldn't be using the system provided libm (-lm).
Perhaps for Croquet or other software that depends on FLoatMathPlugin, see https://en.m.wikipedia.org/wiki/Croquet_Project a special test framework could be ran in Squeak, or perhaps as part of "./configure" configuration, to check the results, of the underlying (system) libm, so that it provides results similar to fdlibm ?
Maybe fdlibm and libm "run bit identically" on some platforms.
This is because for Croquet the goal is to have the VM run bit identically.
Using the system provided -lm would possibly result in a smaller executable, with less duplicated code (no overhead).
I'm no expert on libm, but perhaps the system provided libm is also faster.
Regards, David Stes