build

test: old version builds #104

Job	Run time
win32 (aarch64-pc-windows-msvc, arm64, windows-11-arm)	15m 30s
mingw (i686, wine32)	9m 13s
win32 (x86_64-pc-windows-msvc, x64, windows-latest)	15m 34s
mingw (x86_64, wine64)	11m 58s
msys2 (mingw64, windows-latest)	4m 55s
freebsd	3m 45s
msys2 (clangarm64, windows-11-arm)	6m 6s
linux (clang, clang++, lld, -Db_lto=true -Db_lto_mode=thin)	3m 18s
msys2 (clang64, windows-latest)	4m 42s
linux (gcc, g++, -Db_ndebug=true)	2m 37s
linux-fuzz	2m 4s
macos (clang, clang++, macos-14)	4m 4s
openbsd	7m 45s
macos (clang, clang++, macos-13)	6m 11s
msys2 (ucrt64, windows-latest)	4m 56s
macos (clang, clang++, macos-15)	3m 38s
linux-ffmpeg-6-1	1m 11s
	1h 47m 27s

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