[geos-devel] build failure of 3.10.3 on smartos (= illumos)

[Greg Troxel]

pkgsrc is getting ready for quarterly branch, and I noticed geos fails
to build on smartos.

  https://us-central.manta.mnx.io/pkgsrc/public/reports/upstream-trunk/20220620.2256/geos-3.10.3/build.log

The issue is sqrt(5) leading to ambiguous overload with long double,
double, float.

Appparently that is supposed to be ok, and maybe cmath is supposed to be
included, maybe using std::sqrt, maybe neither.   And maybe c++11 is
supposed to handle int as an arg to sqrt.

Opinions as to whether this is a geos issue vs a smartos toolchain issue
vs ?




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