[MacPorts] #68322: libgcc12 @12.3.0: ld: library not found for -ld_classic

[MacPorts]

#68322: libgcc12 @12.3.0: ld: library not found for -ld_classic
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  Reporter:  k6wx      |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.8.1
Resolution:            |   Keywords:
      Port:  libgcc12  |
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Comment (by cjones051073):

 Replying to [comment:25 Dave-Allured]:
 > Okay.  All I can say now is that command option `-ld_classic` passed to
 any older version of the Xcode linker by any mechanism, has an exact
 explanation for "library not found".  `-ld_classic` is being
 misinterpreted as a library request of the form `-l${short_lib_name}`.
 Linker looks for `libd_classic.dylib` and does not find it.  This might
 not be the right explanation, but it is likely.


 No it is not. The -ld_classic option is only used by gcc when the user is
 running macOS13 or newer, and then only when they also have Xcode15 or
 newer.

 https://github.com/macports/macports-
 ports/blob/master/lang/gcc12/Portfile#L168

 Honestly, this is IMHO not where the problem lies.

 >
 > Kristen, I suggest that in addition to updating your CLT, also `port
 selfupdate` before testing again.

 This for me is the far more likely reason, as it also explains why the
 issue doesn't seem to affect others. The configuration gcc12 has to work
 around the Xcode15 issues have been used just fine in a number of other
 places so far.

-- 
Ticket URL: <https://trac.macports.org/ticket/68322#comment:26>
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