Distutils C++ support #1055

Job	Run time
ci_setuptools (3.10, ubuntu-latest)	4m 9s
collateral (diffcov)	1m 13s
test (3.8, ubuntu-latest)	1m 6s
collateral (docs)	32s
test (3.8, macos-latest)	1m 15s
test_cygwin (39, windows-latest)	5m 13s
test (3.8, windows-latest)	2m 15s
test (3.12, ubuntu-latest)	1m 0s
test_msys2_mingw (mingw64, x86_64, gcc, g++)	2m 18s
test (3.12, macos-latest)	49s
test_msys2_mingw (mingw32, i686, gcc, g++)	2m 44s
test (3.12, windows-latest)	2m 40s
test_msys2_mingw (ucrt64, ucrt-x86_64, gcc, g++)	2m 4s
test (3.9, ubuntu-latest)	59s
test_msys2_mingw (clang64, clang-x86_64, clang, clang++)	2m 39s
test (3.10, ubuntu-latest)	57s
test (3.11, ubuntu-latest)	54s
test (pypy3.10, ubuntu-latest)	1m 34s
check	4s
release	0s
	34m 25s

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