Remove precompile-time tempfiles from TEMP_CLEANUP (#60106)
When starting julia, `Base.Filesystem.TEMP_CLEANUP` should be empty,
but is being left with these two files. The proposed fix is to set up
temporary files created by function `generate_precompile_statements` in
`contrib/generate_precompile.jl` to have no automatic cleanup. This
won't do harm since they will be removed by the cleanup of the
temporary directory created by the call to `mktempdir` in function
`generate_precompile_statements` (see the call `rm(tmpdir,
recursive=true)` in `base/file.jl`). These should be removed by the
atexit hook, but we didn't run `Base.__init__` or
`Base.Filesystem.__postinit__` hooks to re-register this cleanup
handler in the sys.so generation process (only in sysbase.so).
To test this issue, one can do:
`$ mkdir $TMPDIR/JuliaBuild`
`$ OLDTMPDIR=$TMPDIR`
`$ export TMPDIR=$TMPDIR/JuliaBuild`
`$ cd <julia's build root>`
`$ <build julia>`
`$ strings usr/lib/julia/sys.dylib|less # shows that the temp. dir.
JuliaBuild is hardcoded in the binaries`
`$ TMPDIR=$OLDTMPDIR`
`$ chmod u-x $TMPDIR/JuliaBuild`
`$ <run the built julia with ./julia and exit> # should try to use
$TMPDIR/JuliaBuild which is now inaccessible`
Without the fix, the last step triggers the infinite loop of ``Failed to
clean up temporary path''. With the fix, one can see that the binaries
(`usr/lib/julia/sys.dylib`) do not contain the temp. dir. anymore, and
the infinite loop of errors is not triggered.
Or simply by observing that `./julia -E 'Base.Filesystem.TEMP_CLEANUP'`
is not empty.
Fix #60078
