RFR: 8352481: Extra a.out generated after configure with clang

[SendaoYan]

On Fri, 21 Mar 2025 10:40:34 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> Are you saying that running `clang -Wl,-v` sometimes, but not consistently, generated an `a.out` file for you? That's really absurd and clearly a bug in clang/lld. Have you reported this upstream?
> 
> If this really happens and is a problem for you, I can accept that we will need to carry a workaround to delete the file. But you need to add a comment saying that this is a workaround, with a link to the upstream bug so we know when we can remove it.

Only when clang `-Wl,-v` and head command are used with pipeline, and clang uses absolute path, `a.out` will be intermittently generated. I am not sure whether this is a bug of clang or a bug of head command. I will submit an issue in llvm community for confirmation.

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PR Comment: https://git.openjdk.org/jdk/pull/24125#issuecomment-2743215790