Simplify port handling code #2983

Job	Run time
Rocky Linux 8 x64 Clang gnustep-2.2	2m 46s
Rocky Linux 9 x64 Clang gnustep-2.2	5m 27s
Windows x64 MinGW Clang gnustep-2.2	25m 45s
Windows x64 MSVC Clang gnustep-2.2	19m 31s
Windows arm64 MSVC Clang gnustep-2.2	36m 40s
Windows x64 MinGW GCC	27m 48s
Ubuntu x64 GCC	5m 18s
Ubuntu x64 Clang gnustep-2.2	5m 34s
	2h 8m 49s

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