boost176 @1.76.0_9+cmake_scripts+no_single+python311+universal fails to build: "64-bit PPC compilation is not supported when targeting OSX 10.6 or later"

[mallman (Michael Allman)]

I'm unable to build boost176 with the universal variant. I'm looking for a combined arm64/x86_64 binary, but it looks like it's trying to build 64-bit ppc.

This looks relevant:

:debug:clean Starting logging for boost176 @1.76.0_9+cmake_scripts+no_single+python311+universal
:debug:sysinfo macOS 13.4.1 (darwin/22.5.0) arch arm
:debug:sysinfo MacPorts 2.8.1
:debug:sysinfo Xcode 14.3.1, CLT 14.3.1.0.1.1683849156
:debug:sysinfo SDK 13
:debug:sysinfo MACOSX_DEPLOYMENT_TARGET: 13.0

(snip)

:info:build Performing configuration checks
:info:build     - default address-model    : 64-bit [1]
:info:build     - default architecture     : none [1]
:info:build Building the Boost C++ Libraries.
:info:build error: No best alternative for libs/context/build/asm_sources

(snip)

:info:build error: 64-bit PPC compilation is not supported when targeting OSX 10.6 or later
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_boost176/boost176/work/boost_1_76_0" && /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_boost176/boost176/work/boost_1_76_0/b2 -d2 --layout=tagged --debug-configuration --user-config=user-config.jam -sBZIP2_INCLUDE=/opt/local/include -sBZIP2_LIBPATH=/opt/local/lib -sEXPAT_INCLUDE=/opt/local/include -sEXPAT_LIBPATH=/opt/local/lib -sZLIB_INCLUDE=/opt/local/include -sZLIB_LIBPATH=/opt/local/lib -sICU_PATH=/opt/local variant=release link=static,shared runtime-link=shared -j10 threading=multi pch=off address-model=64 architecture=combined 

[mallman (Michael Allman)]

boost176/main.log

[kencu (Ken)]

duplicate of #64954

please look there for the previous investigations and ideas about this issue