Brad King 37bf7eb7a6 Tests: Skip RunCMake.try_compile RerunCMake-nowork case on 1s filesystems ...

On low-resolution filesystems, `Makefile` can end up with the same
time stamp as `CMakeCache.txt`.  CMake must re-run in this case to
be conservative, but that invalidates the `-nowork` cases.

Rather than trying to detect 1s filesystems, just add an option
called `CMake_TEST_FILESYSTEM_1S` that external scripts can use
to tell CMake's test suite about this.

2020-06-01 13:42:16 -04:00

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