RFR: 8351322: Parameterize link option for pthreads

[David Holmes]

On Thu, 6 Mar 2025 15:47:58 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> What is the intended way of using this? Do you run make with `LIBPTHREAD=-pthread` or do you apply a patch on `libraries.m4` for the specific way of linking to pthread?
>
>> What is the intended way of using this? Do you run make with LIBPTHREAD=-pthread or do you apply a patch on libraries.m4 for the specific way of linking to pthread?
> 
> This is in preparation of the upcoming BSD port, which uses `-pthread` instead of `-pthread`. It was me who suggested that this is done separately with the existing code, to minimize the patch of the BSD port.

@magicus why can't we just use `-pthread` everywhere? My recollection is that `-pthread` both sets compiler directives needed for pthread programming and links to libpthread, so it seems to be what we should be using. ??

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PR Comment: https://git.openjdk.org/jdk/pull/23930#issuecomment-2705227213