[MacPorts] #69295: lapack @3.12.0_0+gfortran+openblas (and +accelerate) fails to build on MacOS 10.15 on x86_64

[MacPorts]

#69295: lapack @3.12.0_0+gfortran+openblas (and +accelerate) fails to build on
MacOS 10.15 on x86_64
------------------------------------------+--------------------
 Reporter:  Gandoon                       |      Owner:  (none)
     Type:  defect                        |     Status:  new
 Priority:  Normal                        |  Milestone:
Component:  ports                         |    Version:  2.9.1
 Keywords:  catalina OpenBlas accelerate  |       Port:  lapack
------------------------------------------+--------------------
 Trying to upgrade `lapack +gfortran +openblas` from @3.11.0_1 to 3.12.0_0
 on a legacy system, MacOS 10.15.7. Last successful build was the one I am
 trying to upgrade from, built on 22 January 2024. See an excerpt from the
 attached log below.
 {{{
 . . .
 :info:build   "_ztrsm_64_", referenced from:
 :info:build       _cblas_ztrsm_64 in cblas_ztrsm.c.o
 :info:build   "_ztrsv_64_", referenced from:
 :info:build       _cblas_ztrsv_64 in cblas_ztrsv.c.o
 :info:build ld: symbol(s) not found for architecture x86_64
 :info:build clang: error: linker command failed with exit code 1 (use -v
 to see invocation)
 :info:build make[2]: *** [lib/libcblas.3.12.0.dylib] Error 1
 :info:build make[2]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_lapack/lapack/work/build'
 :info:build make[1]: *** [CBLAS/src/CMakeFiles/cblas.dir/all] Error 2
 :info:build make[1]: *** Waiting for unfinished jobs....
 :info:build [  9%] Building Fortran object
 SRC/CMakeFiles/lapack.dir/slarfb.f.o
 :info:build cd
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_lapack/lapack/work/build/SRC
 && /opt/local/bin/ccache /o
 pt/local/bin/gfortran-mp-13 -Dlapack_EXPORTS  -pipe -Os -m64 -frecursive
 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk -fPIC
 -c /opt/local/var/macports/build/_
 opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_lapack/lapack/work/lapack-3.12.0/SRC/slarfb.f
 -o CMakeFiles/lapack.dir/slarfb.f.o
 . . .
 [ 47%] Built target lapack
 make[1]: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_lapack/lapack/work/build'
 make: *** [all] Error 2
 make: Leaving directory
 `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_lapack/lapack/work/build'
 Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_lapack/lapack/work/build"
 && /usr/bin/make -j8 -w all VERBOSE=ON
 Exit code: 2
 Error: Failed to build lapack: command execution failed
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_lapack/lapack/main.log
 for details.
 Error: Follow https://guide.macports.org/#project.tickets if you believe
 there is a bug.
 }}}
 As can be seen, quite early on in the build process some symbols cannot be
 found. After that a bunch more is built successfully before the whole
 thing grinds to an unrecoverable halt.

 Does anyone have a suggestion as for what to do here? It is not clear to
 me exactly what is the problem. I did also try using `+accelerate`
 instead, despite being uncertain whether this will negatively impact ports
 depending on `lapack`, but the error persists. I finally also tried using
 `+gcc13` instead of `+gfortran`but as expected, that was equally
 unsuccessful.

 I noticed that there actually seems to be another, older active ticket
 that seems to be related, using `+accelerate +gcc10`: #67262 but with the
 same error message.

-- 
Ticket URL: <https://trac.macports.org/ticket/69295>
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