trying to fix windows build #27

Job	Run time
Ubuntu / Release / gcc	24m 47s
macOS / Release / homebrew-clang	8m 52s
Ubuntu / Debug / gcc	16m 59s
Windows / Release / cl	33m 51s
macOS / Debug / homebrew-clang	6m 34s
Ubuntu / Release / clang	18m 57s
Windows / Release / clang	24m 28s
Ubuntu / Debug / clang	16m 48s
macOS / Release / system-clang	7m 9s
Windows / Release / clang-cl	27m 5s
macOS / Debug / system-clang	5m 33s
Windows / Debug / cl	28m 27s
Windows / Debug / clang	33m 41s
Windows / Debug / clang-cl	28m 27s
	4h 41m 38s

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