build

msvc: Try to enable avx2 #797

Job	Run time
build-cross (x86_64-w64-mingw32)	1m 36s
build-windows (x86)	57s
build-cross (i686-w64-mingw32)	1m 35s
build (ubuntu-22.04, gcc, autotools)	49s
build-windows (x64)	1m 29s
build (ubuntu-22.04, gcc, cmake)	54s
build (ubuntu-22.04, clang, autotools)	43s
build (ubuntu-22.04, clang, distcheck)	57s
build (ubuntu-22.04, clang, cmake)	44s
build (macos-13, gcc, autotools)	1m 22s
build (macos-13, gcc, cmake)	1m 15s
build (macos-13, clang, autotools)	1m 13s
build (macos-13, clang, distcheck)	1m 33s
build (macos-13, clang, cmake)	1m 23s
build (macos-14, gcc, autotools)	41s
build (macos-14, gcc, cmake)	47s
build (macos-14, clang, autotools)	39s
build (macos-14, clang, distcheck)	53s
build (macos-14, clang, cmake)	49s
release	0s
	20m 19s

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