[MacPorts] #69480: llvm-17 fails to build agains port:legacy-support=1.1.1 when the latter is build with -flto

[MacPorts]

#69480: llvm-17 fails to build agains port:legacy-support=1.1.1 when the latter is
build with -flto
-----------------------------+--------------------
  Reporter:  RJVB            |      Owner:  (none)
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:
      Port:  legacy-support  |
-----------------------------+--------------------

Comment (by RJVB):

 Replying to [comment:3 fhgwright]:
 > This is probably a duplicate of #68314.  I'm not sure about the `-flto`
 part, but why don't you try again (and comment here) once `legacy-support
 1.2.1` is published ([https://github.com/macports/macports-
 ports/pull/23011]).

 The symptoms are the same, the question is why I'm getting them when
 compiling with `-flto` but without `-fPIC` (which AFAICT is the only
 difference between the generated *.o and *.dl.o object files).

 I can wait, of course, but I could also see if adding `-fPIC` instead of
 `-fno-lto` addresses the problem without adding any others.

 Do you happen to have an idea which ports link statically? Without clear
 indication of significant benefits of LTO builds it's probably not worth
 going down a rabbithole to fix this more properly...

 BTW, `-fno-lto` overrides and disables any request to use LTO; given how
 the Makefile is set up that includes any attempt of the user to obtain it
 via `configure.optflags`.

 (''PS: my session apparently timed out while typing this reply. Bad trac!
 Thank goodness it wasn't any longer and that the browser cache didn't get
 invalidated...!'')

-- 
Ticket URL: <https://trac.macports.org/ticket/69480#comment:7>
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