inkscape build fails on macOS 10.12.6

[bakertlh]

:info:build /usr/bin/clang++ -DHAVE_CONFIG_H -I. -I.. -I../cxxtest -I./extension/dbus -I/opt/local/include/freetype2 -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_\ QUANTUM_DEPTH=16 -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16 -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16 -I/opt/local/include/ImageMagick-6\

-I/opt/local/include/libwpg-0.3 -I/opt/local/include/libwpd-0.10 -I/opt/local/include/librevenge-0.0 -I/opt/local/include/libvisio-0.1 -I/opt/local/include/libxml2 \

-I/opt/local/include/librevenge-0.0 -I/opt/local/include/libcdr-0.1 -I/opt/local/include/librevenge-0.0 -I/opt/local/include/dbus-1.0 -I/opt/local/lib/dbus-1.0/inclu\ de -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/poppler -D_REENTRANT -I/opt/local/include/poppler/glib -I/opt/local/includ\ e/poppler -I/opt/local/include/cairo -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/pixman-1 -I/opt/local/include/freetype2 -I/\ opt/local/include/libpng16 -DPOTRACE=\"potrace\" -D_REENTRANT -I/opt/local/include/gtkspell-2.0 -I/opt/local/include/gtk-2.0 -I/opt/local/lib/gtk-2.0/include -I/opt/\ local/include/pango-1.0 -I/opt/local/include/gio-unix-2.0/ -I/opt/local/include/cairo -I/opt/local/include/atk-1.0 -I/opt/local/include/cairo -I/opt/local/include/pi\ xman-1 -I/opt/local/include/libpng16 -I/opt/local/include/gdk-pixbuf-2.0 -I/opt/local/include/libpng16 -I/opt/local/include/pango-1.0 -I/opt/local/include/harfbuzz -\ I/opt/local/include/pango-1.0 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/freetype2 -D_REENTRANT -I/opt/local/include/cairo \ -I/opt/local/include/pixman-1 -I/opt/local/include/libpng16 -I/opt/local/include/libxml2 -I/opt/local/include/pango-1.0 -I/opt/local/include/harfbuzz -I/opt/local/in\ clude/pango-1.0 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/freetype2 -DWITH_MESH -DWITH_CSSBLEND -DWITH_CSSCOMPOSITE -DWI\ TH_SVG2 -Werror=format-security -Wswitch -Werror=return-type -DGSEAL_ENABLE -DG_DISABLE_SINGLE_INCLUDES -Wall -Wformat -Wformat-security -W -D_FORTIFY_SOURCE=2 -I/op\ t/local/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_inkscape/inkscape/work/inkscape-0.\ 92.2/src/extension/script -D_REENTRANT -I/opt/local/include/gtkmm-2.4 -I/opt/local/lib/gtkmm-2.4/include -I/opt/local/include/atkmm-1.6 -I/opt/local/include/gtk-unix\ -print-2.0 -I/opt/local/include/gtk-2.0 -I/opt/local/include/gdkmm-2.4 -I/opt/local/lib/gdkmm-2.4/include -I/opt/local/include/giomm-2.4 -I/opt/local/lib/giomm-2.4/i\ nclude -I/opt/local/include/pangomm-1.4 -I/opt/local/lib/pangomm-1.4/include -I/opt/local/include/glibmm-2.4 -I/opt/local/lib/glibmm-2.4/include -I/opt/local/include\ /cairomm-1.0 -I/opt/local/lib/cairomm-1.0/include -I/opt/local/include/sigc++-2.0 -I/opt/local/lib/sigc++-2.0/include -I/opt/local/include/gtk-2.0 -I/opt/local/lib/g\ tk-2.0/include -I/opt/local/include/pango-1.0 -I/opt/local/include/gio-unix-2.0/ -I/opt/local/include/cairo -I/opt/local/include/atk-1.0 -I/opt/local/include/cairo -\ I/opt/local/include/pixman-1 -I/opt/local/include/libpng16 -I/opt/local/include/gdk-pixbuf-2.0 -I/opt/local/include/libpng16 -I/opt/local/include/pango-1.0 -I/opt/lo\ cal/include/harfbuzz -I/opt/local/include/pango-1.0 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/freetype2 -D_REENTRANT -I/op\ t/local/include/cairomm-1.0 -I/opt/local/lib/cairomm-1.0/include -I/opt/local/include/cairo -I/opt/local/include/pixman-1 -I/opt/local/include/freetype2 -I/opt/local\ /include/libpng16 -I/opt/local/include/giomm-2.4 -I/opt/local/lib/giomm-2.4/include -I/opt/local/include/glibmm-2.4 -I/opt/local/lib/glibmm-2.4/include -I/opt/local/\ include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/sigc++-2.0 -I/opt/local/lib/sigc++-2.0/include -Wpointer-arith -Wcast-align -Wsign-compare -W\ overloaded-virtual -Wswitch -Wno-unused-parameter -pipe -O0 -std=c++11 -stdlib=libc++ -arch x86_64 -MT libvpsc/blocks.o -MD -MP -MF $depbase.Tpo -c -o libvpsc/blocks\ .o libvpsc/blocks.cpp &&\ :info:build mv -f $depbase.Tpo $depbase.Po :info:build 1 error generated. :info:build make[3]: * [libavoid/connector.o] Error 1

...

:error:build Failed to build inkscape: command execution failed :debug:build Error code: CHILDSTATUS 35747 2 :