[MacPorts] #69218: py-numba reports meaningless error: Unable to execute port py311-numba: invalid command name "registry::open"

[MacPorts]

#69218: py-numba reports meaningless error: Unable to execute port py311-numba:
invalid command name "registry::open"
-------------------------+-------------------------------------------------
  Reporter:              |      Owner:  stromnov
  barracuda156           |
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.9.0
Resolution:              |   Keywords:  tiger, leopard, snowleopard,
      Port:  py-numba    |  powerpc
-------------------------+-------------------------------------------------

Comment (by barracuda156):

 Replying to [comment:1 jmroot]:
 > If you provided a log or debug output it might be possible to see where
 that message is actually coming from and do something about it.

 Thank you for pointing out, log was helpful. Turns out that it relies on
 `libcxx` port to decide whether this is buildable. While this is perhaps
 wrong in principle, it works as of now, since `libcxx` port is Intel-only.
 So I would get this normally:
 {{{
 --->  Computing dependencies for py310-numba...
 Error: Cannot install llvm-14 for the arch 'ppc' because
 Error: its dependency libcxx only supports the archs 'i386 x86_64'.
 Error: Follow https://guide.macports.org/#project.tickets if you believe
 there
 is a bug.
 Error: Processing of port py310-numba failed
 }}}

 However I had `libcxx` for `ppc` locally (it trivially builds with no
 hacks in fact, just minor fixes for the build system), and that did not
 work for detection:
 {{{
 :debug:main Didn't find receipt, going to depspec regex for: libcxx
 :debug:main Opening port in directory:
 /opt/PPCSnowLeopardPorts/lang/libcxx
 :debug:main OS darwin/10.0.0d2 (macOS 10.6) arch powerpc
 :debug:main Sourcing PortGroup compiler_blacklist_versions 1.0 from
 /opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/_resources/port1.0/group/compiler_blacklist_versions-1.0.tcl
 :debug:main Sourcing PortGroup active_variants 1.1 from
 /opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/_resources/port1.0/group/active_variants-1.1.tcl
 :debug:main invalid command name "registry::open"
 :debug:main     while executing
 :debug:main "registry::open [file join ${registry.path} registry
 registry.db]"
 :debug:main     invoked from within
 :debug:main "if {${os.major} < 11 || [variant_isset replacemnt_libcxx]} {
 :debug:main
 :debug:main     supported_archs i386 x86_64
 :debug:main
 :debug:main     if {${build_arch} in "i386 x86_64"} {
 :debug:main         varia..."
 :debug:main     (file "/opt/PPCSnowLeopardPorts/lang/libcxx/Portfile" line
 87)
 :debug:main     invoked from within
 :debug:main "source /opt/PPCSnowLeopardPorts/lang/libcxx/Portfile"
 :debug:main     invoked from within
 :debug:main "$workername eval [list source $portfilepath]"
 :debug:main invalid command name "registry::open"
 :debug:main     while executing
 :debug:main "error $result"
 :debug:main     (procedure "mportopen" line 53)
 :debug:main     invoked from within
 :debug:main "mportopen $dep_portinfo(porturl) $dep_options $variations"
 :debug:main     (procedure "mportdepends" line 137)
 :debug:main     invoked from within
 :debug:main "mportdepends $depport {} $recurseDeps $skipSatisfied 1
 $depListName"
 :debug:main     (procedure "mportdepends" line 204)
 :debug:main     invoked from within
 :debug:main "mportdepends $depport {} $recurseDeps $skipSatisfied 1
 $depListName"
 :debug:main     (procedure "mportdepends" line 204)
 :debug:main     invoked from within
 :debug:main "mportdepends $mport $target 1 1 0 dlist"
 :debug:main     (procedure "mportexec" line 55)
 :debug:main     invoked from within
 :debug:main "mportexec $workername $target"
 :error:main Unable to execute port py310-numba: invalid command name
 "registry::open"
 }}}

 Removing a local `libcxx` (which in fact should be removed, since we got
 `libcxx-powerpc` which is separate and newer version), I am back to the
 sensible error message.

 So my initial report is a result of confusion. Sorry for that.

 Yet, perhaps, it is `llvm` should fail as being for `arm64 i386 x86_64`
 (it is genuinely unsupported on PowerPC, at least as of now, and will not
 build), and not `libcxx`, which a) builds fine and b) can be used with
 gcc, so it is not something meaningless to have built.

-- 
Ticket URL: <https://trac.macports.org/ticket/69218#comment:2>
MacPorts <https://www.macports.org/>
Ports system for macOS