poppler can't be updated

[jiri@…]

because of problem with dependencies

sudo port -d selfupdate && sudo port upgrade outdated

--->  Computing dependencies for gimp2
--->  Dependencies to be installed: poppler
--->  Activating poppler @0.14.4_0
Error: Target org.macports.activate returned: Image error: /opt/local/bin/pdffonts is being used by the active xpdf port.  Please deactivate this port first, or use 'port -f activate poppler' to force the activation.
Log for poppler is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_poppler/main.log
Error: The following dependencies failed to build: poppler
Error: Unable to upgrade port: 1

sudo port -u uninstall

--->  Unable to uninstall poppler 0.14.4_0, the following ports depend on it:
--->      pdf2djvu
--->      texlive-bin
--->      gimp2
Error: port uninstall failed: Please uninstall the ports that depend on poppler first.

[ryandesign (Ryan Carsten Schmidt)]

Duplicate of #17540.

[dbevans (David B. Evans)]

Conflict between xpdf and poppler resolved in r72519, 72520.