[MacPorts] #60946: gnuradio-companion build failure, Cairo not found

[MacPorts]

#60946: gnuradio-companion build failure, Cairo not found
--------------------+--------------------
 Reporter:  d0plr   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.6.3
 Keywords:          |       Port:
--------------------+--------------------
 Using MacOS 10.14.6, MacPorts 2.6.3

 Here's a extract of the log file:

 {{{

 --
 -- Python checking for python2 >= 2.7.6 or python3 >= 3.6.5 - found
 -- Python checking for PyYAML >= 3.10 - found
 -- Python checking for mako >= 0.9.1 - found
 -- Python checking for pygobject >= 2.28.6 - found
 -- Python checking for Gtk (GI) >= 3.10.8 - found
 -- Python checking for Cairo (GI) >= 1.0 - not found
 -- Python checking for PangoCairo (GI) >= 1.0 - found
 -- Python checking for numpy - found
 --
 -- Configuring gnuradio-companion support...
 --   Dependency ENABLE_GNURADIO_RUNTIME = ON
 --   Dependency ENABLE_PYTHON = ON
 --   Dependency PYTHON_MIN_VER_FOUND = TRUE
 --   Dependency PYYAML_FOUND = TRUE
 --   Dependency MAKO_FOUND = TRUE
 --   Dependency PYGI_FOUND = TRUE
 --   Dependency GTK_GI_FOUND = TRUE
 --   Dependency CAIRO_GI_FOUND = FALSE
 --   Dependency PANGOCAIRO_GI_FOUND = TRUE
 --   Dependency NUMPY_FOUND = TRUE
 CMake Error at cmake/Modules/GrComponent.cmake:75 (message):
   user force-enabled gnuradio-companion but configuration checked failed
 Call Stack (most recent call first):
   grc/CMakeLists.txt:95 (GR_REGISTER_COMPONENT)
 -- Configuring incomplete, errors occurred!

 }}}

 so it seems that the Cairo check is failing, although I do have cairo,
 py27-cairo and py37-cairo installed.

-- 
Ticket URL: <https://trac.macports.org/ticket/60946>
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