poppler-0.65.0 fails to build during build of xfce

[willbprog127 (Will Brokenbourgh)]

While attempting to build xfce, poppler fails to build:

:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_poppler/poppler/work/build" && /usr/bin/make -j4 -w all CC="/usr/bin/clang -arch x86_64" VERBOSE=ON 
:info:build Exit code: 2
:error:build Failed to build poppler: command execution failed
:debug:build Error code: CHILDSTATUS 50881 2
:debug:build Backtrace: command execution failed
:debug:build     while executing
:debug:build "system {*}$notty {*}$nice $fullcmdstring"
:debug:build     invoked from within
:debug:build "command_exec build"
:debug:build     (procedure "portbuild::build_main" line 8)
:debug:build     invoked from within
:debug:build "$procedure $targetname"

Log is attached.

macOS 10.13.5 Mac Mini

CC'ing the poppler maintainer, however there is no maintainer for xfce.