[MacPorts] #62428: gobject-introspection @1.60.2_5 fails to configure (with fixes)

[MacPorts]

#62428: gobject-introspection @1.60.2_5 fails to configure (with fixes)
--------------------+-----------------------------------
 Reporter:  dsteck  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  gobject-introspection
--------------------+-----------------------------------
 Configure failed in two ways.  Tested on macports with everything
 uninstalled, Big Sur 11.2.3 (20D91), CLI tools 12.4.0.0.1.1610135815, as
 x86_64 (everything current as of now).

 1. configure complains that it can't find gtkdocize
 (see gobject-introspection-fail1.log)

 solution: add port gtk-doc as a dependency

 2. configure complains that it can't find Python.h; the issue is that
 CPP='', so the test is run without specifying a preprocessor
 (see gobject-introspection-fail2.log)

 solution: add two lines to portfile (not sure if this is the right fix,
 but it's how I was able to make it work):
 configure.cpp       'gcc -E'
 configure.post_args CPP=${configure.cpp}

-- 
Ticket URL: <https://trac.macports.org/ticket/62428>
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