Fixes issue 181. #476

Job	Run time
B2 gcc-11	3m 19s
B2 msvc-14.2	4m 48s
B2 clang-14	3m 38s
CMake msvc-14.2 Debug C++17	8m 8s
B2 msvc-14.3	5m 39s
CMake gcc-11 17 Debug	8m 27s
CMake msvc-14.2 Release C++17	10m 7s
CMake gcc-11 20 Release	10m 56s
CMake msvc-14.3 Debug C++20	10m 54s
CMake clang-11 17 Debug	5m 58s
CMake msvc-14.3 Release C++20	11m 7s
CMake clang-11 20 Debug	6m 40s
CMake clang-13 17 Release	8m 57s
CMake clang-13 20 Release	9m 20s
CMake clang-14 17 Debug -stdlib=libc++	8m 16s
CMake clang-14 20 Release -stdlib=libc++	11m 41s
	2h 7m 55s

Provide feedback