CI-mingw

Fix #688: Support `#elifdef` and `#elifndef` #338

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Run time

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Job	Run time
build (clang++, CLANG64)	2m 29s
build (g++, MINGW64)	1m 46s
build (clang++, MINGW64)	2m 9s
build (g++, MINGW32)	1m 57s
	8m 21s