iohann.s.titov@gmail.com Ivan S. Titov Open CASCADE Technology 8, ahead of ::gentoo, which carries 7.8. media-gfx/orcaslicer 2.5.0 needs the 8.0 API for its parametric Design tab. Enable support for image i/o via media-libs/freeimage Enable jemalloc allocator support via dev-libs/jemalloc Enable JSON support through dev-libs/rapidjson Don't clear allocated memory. Use optimized memory manager unless USE="tbb" is set Enable multithreading with the Intel Threads Building Block dev-cpp/tbb Enable Visualization Toolkit support via sci-libs/vtk https://github.com/Open-Cascade-SAS/OCCT/issues https://github.com/Open-Cascade-SAS/OCCT/releases https://github.com/Open-Cascade-SAS/OCCT/wiki Open-Cascade-SAS/OCCT