[MacPorts] #69515: groff depends on m4 which isn't provided with commandlineTools 15.3

[MacPorts]

#69515: groff depends on m4 which isn't provided with commandlineTools 15.3
------------------------+-----------------------------
  Reporter:  MStraeten  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.9.1
Resolution:             |   Keywords:  sonoma haspatch
      Port:  groff      |
------------------------+-----------------------------

Comment (by ryandesign):

 Unlike libtool, groff only needs m4 at build time, so `depends_build`
 would be the correct dependency type.

-- 
Ticket URL: <https://trac.macports.org/ticket/69515#comment:2>
MacPorts <https://www.macports.org/>
Ports system for macOS