boost @1.59.0: Can't build without no_single variant

[adkafka@…]

I need boost's single thread libraries (specifically lboost_system) to build Caffe, but port cannot install it.

I run: (After a clean and performing updates)

$ sudo port install boost -no_single

And recieve an error that points me to a log. The important info from the log is:

:info:build error: Name clash for '<pstage/lib>libboost_atomic-mt.dylib'
:info:build error: 
:info:build error: Tried to build the target twice, with property sets having 
:info:build error: these incompatible properties:
:info:build error: 
:info:build error:     -  none
:info:build error:     -  <dll-path>/opt/local/bin
:info:build error: 
:info:build error: Please make sure to have consistent requirements for these 
:info:build error: properties everywhere in your project, especially for install
:info:build error: targets.
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_devel_boost/boost/work/boost_1_59_0" && /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_devel_boost/boost/work/boost_1_59_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 threading=single,multi -j4 architecture=x86 address-model=64 link=shared 
:info:build Exit code: 1
:error:build org.macports.build for port boost returned: command execution failed

Any help would be much appreciated!

[adkafka@…]

main.log

[ryandesign (Ryan Carsten Schmidt)]

Duplicate of #48614.