[MacPorts] #55446: gnucash-devel: update to version 2.7.2, modernize dependencies

[MacPorts]

#55446: gnucash-devel: update to version 2.7.2, modernize dependencies
----------------------------+--------------------
  Reporter:  dbevans        |      Owner:  drkp
      Type:  update         |     Status:  closed
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:  fixed          |   Keywords:
      Port:  gnucash-devel  |
----------------------------+--------------------

Comment (by drkp):

 Note that this still uses guile 1.8, although gnucash also supports 2.0
 (but not 2.2). And there is still an indirect gtk2 dependency. But it's a
 start.

 Also, I haven't tested it extensively: gnucash crashes when I try to load
 my accounts file (as does the official build, so it's not a bug in the
 port)

--
Ticket URL: <https://trac.macports.org/ticket/55446#comment:6>
MacPorts <https://www.macports.org/>
Ports system for macOS