Work on check-linux-gnu-centos. #85

Job	Run time
build-tarball	31m 0s
make check on AlmaLinux GNU/Linux	33m 16s
make check on Alpine Linux	34m 27s
make check on FreeBSD	15m 2s
make check on Cygwin (64)	1h 56m 38s
make check on CentOS GNU/Linux	27s
make check on Ubuntu GNU/Linux	33m 20s
make check on macOS (macos-13)	48m 59s
make check on mingw (32)	1h 15m 21s
make check on macOS (macos-14)	23m 47s
make check on MSVC (32)	1h 4m 45s
make check on mingw (64)	1h 20m 31s
make check on NetBSD	26m 7s
make check on macOS (macos-15)	34m 47s
make check on MSVC (64)	1h 1m 55s
make check with the newest clang release	18m 29s
make check on OpenBSD	38m 31s
make check with sanitizers	11m 45s
make check on Solaris 11	59m 40s
make check on Solaris 11 OmniOS	56m 3s
	14h 24m 50s

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