mainGNU Libtool - Support: sr #110937, -single_module detection broken...


sr #110937: -single_module detection broken with Xcode 15

Submitter:  Joshua Root <jmroot>
Submitted:  Thu 28 Sep 2023 06:02:11 AM UTC
Category:  None Priority:  5 - Normal
Severity:  3 - Normal Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Operating System:  Mac OS
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Thu 28 Sep 2023 06:02:11 AM UTC, original submission:  

The check for whether the linker supports the -single_module flag assumes that anything printed to stderr containing the string "single_module" means it is unsupported. Xcode 15 does print such a message, though it only indicates that the flag is deprecated. Lack of single module support triggers some workarounds that aren't needed and don't work very well on modern systems.

This flag has been unnecessary for many macOS versions, so teaching libtool that it is not needed in this case is probably preferable to just fixing the check. See attached patch.

Joshua Root <jmroot>


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Attach Files:

Attached Files
file #55175:  single_module.diff added by jmroot (3KiB - application/octet-stream)


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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2023-09-28 jmroot Attached File- Added single_module.diff, #55175

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