In the future, please Cc relevant port maintainers (port info --maintainers).
:info:build /usr/bin/clang++ -pipe -Os -arch x86_64 -L/opt/local/lib -Wl,-headerpad_max_install_names -arch x86_64 -L/opt/local/lib -L/opt/local/lib -Wl,-headerpad_max_install_names -L/opt/local/lib -L/opt/local/lib -o gnuplot alloc.o axis.o binary.o breaders.o color.o command.o contour.o datafile.o dynarray.o eval.o fit.o gadgets.o getcolor.o graph3d.o graphics.o help.o hidden3d.o history.o internal.o interpol.o matrix.o misc.o mouse.o parse.o plot.o plot2d.o plot3d.o pm3d.o readline.o save.o scanner.o set.o show.o specfun.o standard.o stats.o stdfn.o tables.o tabulate.o term.o time.o unset.o util.o util3d.o variable.o version.o gp_cairo.o gp_cairo_helpers.o -lreadline -lncurses -lz -lgd -lgd -ljpeg -lz -L/opt/local/lib -lpng15 -L/opt/local/lib -lfreetype -L/opt/local/lib -lfontconfig -lfontconfig -L/opt/local/lib -lXpm -lX11 -L/opt/local/lib -lvpx -liconv -ljpeg -lpdf -L/opt/local/lib -llua -lm -framework Foundation -framework AquaTerm -F/opt/local/Library/Frameworks -L/opt/local/lib -lz -lpangocairo-1.0 -lcairo -lpangoft2-1.0 -lpango-1.0 -lm -lgobject-2.0 -lfreetype -lfontconfig -lglib-2.0 -lintl
:info:build ld: library not found for -lvpx
:info:build clang: error: linker command failed with exit code 1 (use -v to see invocation)
:info:build make[3]: *** [gnuplot] Error 1
