[MacPorts] #61636: OpenBLAS @0.3.12-universal: Dependencies fail to install on ARM64

[MacPorts]

#61636: OpenBLAS @0.3.12-universal: Dependencies fail to install on ARM64
-----------------------+-------------------------
  Reporter:  jpanetta  |      Owner:  NicosPavlov
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.4
Resolution:            |   Keywords:  arm64
      Port:  OpenBLAS  |
-----------------------+-------------------------

Comment (by jpanetta):

 I was able to ''build'' that gcc branch using the attached Portfile with
 only a couple changes from the existing `gcc-devel` version. The main
 change was adding `depends_build port:texinfo` to work around a malloc bug
 in the system `/usr/bin/makeinfo`.

 Unfortunately now it's failing at what I assume is the post-destroot
 phase:
 {{{
 :debug:destroot Executing proc-post-org.macports.destroot-destroot-0
 :debug:destroot PortGroup select: Installing select files to destroot
 :info:destroot xinstall: mkdir /opt/local/var/macports/build
 /_usr_local_ports_lang_gcc-develarm/gcc-
 develarm/work/destroot/opt/local/etc/select
 :info:destroot xinstall: mkdir /opt/local/var/macports/build
 /_usr_local_ports_lang_gcc-develarm/gcc-
 develarm/work/destroot/opt/local/etc/select/gcc
 :error:destroot Failed to destroot gcc-develarm: xinstall: Cannot stat:
 /usr/local/ports/lang/gcc-develarm/files/mp-gcc-develarm, No such file or
 directory
 :debug:destroot Error code: NONE
 :debug:destroot Backtrace: xinstall: Cannot stat: /usr/local/ports/lang
 /gcc-develarm/files/mp-gcc-develarm, No such file or directory
 :debug:destroot     while executing
 :debug:destroot "$post $targetname"
 :error:destroot See /opt/local/var/macports/logs
 /_usr_local_ports_lang_gcc-develarm/gcc-develarm/main.log for details.
 }}}
 though I can't figure out what could be looking for `mp-gcc-develarm` (all
 my generated binaries look like `gcc-mp-develarm`). Also, I tried
 inserting print statements at the top of `post-destroot` that do not seem
 to run. Is this roughly where you guys were stuck?

-- 
Ticket URL: <https://trac.macports.org/ticket/61636#comment:26>
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