[MacPorts] #71634: OpenBLAS @0.3.28 does not build on PPC Mac OS X 10.4.11, Tiger, because clang-11-bootstrap cannot be installed for the configured build_arch 'ppc'

[MacPorts]

#71634: OpenBLAS @0.3.28 does not build on PPC Mac OS X 10.4.11, Tiger, because
clang-11-bootstrap cannot be installed for the configured build_arch 'ppc'
-----------------------+----------------------
 Reporter:  ballapete  |      Owner:  (none)
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.10.5
 Keywords:  tiger ppc  |       Port:  OpenBLAS
-----------------------+----------------------
 {{{
 port -v rev-upgrade
 --->  Scanning binaries for linking errors
 Could not open /opt/local/lib/libgcc/libgfortran.4.dylib: Error opening or
 reading file (referenced from /opt/local/lib/libopenblas.0.3.dylib)
 --->  Found 1 broken file, matching files to ports
 --->  Found 1 broken port, determining rebuild order
 You can always run 'port rev-upgrade' again to fix errors.
 The following ports will be rebuilt: OpenBLAS @0.3.28+gcc7+lapack+native
 Continue? [Y/n]: Error: clang-11-bootstrap cannot be installed for the
 configured build_arch 'ppc' because it only supports the arch(s) 'arm64
 i386 x86_64'.
 }}}

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Ticket URL: <https://trac.macports.org/ticket/71634>
MacPorts <https://www.macports.org/>
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