[MacPorts] #32924: Add library dependencies to poppler + version bump

[MacPorts]

#32924: Add library dependencies to poppler + version bump
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 Reporter:  macosx12345@…         |       Owner:  macports-tickets@…                   
     Type:  enhancement           |      Status:  new                                  
 Priority:  Normal                |   Milestone:                                       
Component:  ports                 |     Version:  2.0.3                                
 Keywords:                        |        Port:  poppler                              
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 Poppler and libpoppler actually depend on several dependencies that were
 not mentioned in the Portfile (can be checked e.g. with `otool -L
 /opt/local/lib/libpoppler.19.dylib`). I attach a new version of the
 Portfile that adds explicit dependencies to tiff, libpng, bzip2, zlib,
 fontconfig, freetype, expat. This is probably not exhaustive, but,
 hopefully, better than nothing.

  Incidentally, the new Portfile updates to version 0.18.3 that was
 released on January, 15th, 2012.

  The use of such explicit dependencies can be to find which ports one has
 to rebuild after an upgrade. For instance, after an upgrade of `tiff`,
 `port dependents tiff` would show the extensive list of ports that depend
 on tiff and that one should rebuild. Presently, poppler is not listed, so
 that the user discovers that he/she should have rebuilt poppler only at
 the time he/she fails to launch e.g. pdflatex.

  Thank you for your consideration!

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Ticket URL: <https://trac.macports.org/ticket/32924>
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