[MacPorts] #68225: OpenBLAS @0.3.24_0: hanging when building

[MacPorts]

#68225: OpenBLAS @0.3.24_0: hanging when building
---------------------------+---------------------------
  Reporter:  kickingvegas  |      Owner:  NicosPavlov
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.8.1
Resolution:                |   Keywords:  ventura arm64
      Port:  OpenBLAS      |
---------------------------+---------------------------

Comment (by cjones051073):

 OK, so I have switch to testing with another port (rooted) that I happen
 to know doesn't using anything built with gcc. With that port, I do not
 get any issues with configure etc. I have tried numerous times in a row,
 with various clang versions (both system and macports) and no problems.

 libcifpp uses eigen3, which was built in part with gcc.

 So I suspect what is the issue here is Xcode 15 changed the default linker
 to something new which currently has issues with anything built with GCC.
 See the recent mails to the user list

 https://lists.macports.org/pipermail/macports-
 users/2023-September/052224.html

 Switching to use the 'classic' link option  seems to help, but getting
 ports to do this isn't trivial in some cases. In theory

 {{{
 configure.ldflags-append -Wl,-ld_classic
 }}}

 should do it, but that doesn't always find its way to everywhere that
 needs it. In particular tests that are run during configure usually don't
 respect settings this way...

-- 
Ticket URL: <https://trac.macports.org/ticket/68225#comment:13>
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