openmotif: internal error: hellomotif fails to link

[jries@…]

When doing a routine update (port upgrade outdated following port selfupdate), the compilation of openmotif fails as follows:

Error: org.macports.build for port openmotif returned: command execution failed
Please see the log file for port openmotif for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_x11_openmotif/openmotif/main.log
Error: Unable to upgrade port: 1
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets

A look at the log indicates that build fails on the linking of hellomotif (starting at main.log:4538):

:info:build /bin/sh ../../../libtool  --tag=CC   --mode=link /usr/bin/clang  -pipe -Os -arch x86_64 -Wall -g -fno-strict-aliasing -Wno-unused -Wno-comment -I/opt/local/include -I/opt/local/include/freetype2 -I/opt/local/include -I/opt/local/include/freetype2 -I/opt/local/include -I/opt/local/include/libpng16 -I/opt/local/include     -L/opt/local/lib -Wl,-headerpad_max_install_names -arch x86_64 -o hellomotif hellomotif.o ../../../lib/Xm/libXm.la ../../../lib/Mrm/libMrm.la -lXp -liconv  -L/opt/local/lib -lXft -lXrender -L/opt/local/lib -lXft  -ljpeg -lpng
:info:build libtool: link: /usr/bin/clang -pipe -Os -arch x86_64 -Wall -g -fno-strict-aliasing -Wno-unused -Wno-comment -I/opt/local/include -I/opt/local/include/freetype2 -I/opt/local/include -I/opt/local/include/freetype2 -I/opt/local/include -I/opt/local/include/libpng16 -I/opt/local/include -Wl,-headerpad_max_install_names -arch x86_64 -o .libs/hellomotif hellomotif.o  -L/opt/local/lib ../../../lib/Xm/.libs/libXm.dylib ../../../lib/Mrm/.libs/libMrm.dylib /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_x11_openmotif/openmotif/work/motif-2.3.4/lib/Xm/.libs/libXm.dylib -lXmu -lXext -lXt -lSM -lICE -lX11 -lXp -liconv -lXrender -lXft -ljpeg -lpng
:info:build ../../../clients/uil/uil -o hellomotif.uid hellomotif.uil -I./../../../clients/uil -I../../../clients/uil
:info:build 
:info:build Severe: internal error - submit defect report
:info:build make[3]: *** [hellomotif.uid] Error 1
:info:build make[3]: Leaving directory `/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_x11_openmotif/openmotif/work/motif-2.3.4/demos/programs/hellomotif'

This may or may not have anything to do with the fact that I had to build xorg-libXt +flat_namespace +universal (previous variant was xorg-libXt +universal).

[jries@…]

/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_x11_openmotif/openmotif/main.log