[MacPorts] #63585: py27-pygtk: error: implicit declaration of function 'pango_font_metrics_new' is invalid in C99

[MacPorts]

#63585: py27-pygtk: error: implicit declaration of function
'pango_font_metrics_new' is invalid in C99
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  Reporter:  rhstanton  |      Owner:  mascguy
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  catalina bigsur
      Port:  py-pygtk   |
------------------------+-----------------------------

Comment (by mascguy):

 Replying to [comment:11 jmroot]:
 > Implicit declaration is only allowed in C89 and K&R C. The correct fix
 is to provide function prototypes before calling the functions, usually by
 including an appropriate header. `-Wno-error=implicit-function-
 declaration` is no longer the default because implicit declaration is
 unsafe on arm64 (different ABI depending on what type of arguments a
 function takes).

 Yep for sure; I purposely left this ticket open, as the initial fix is
 intended to stop the bleeding on x86.

 I'm now looking at potential code patches, to see if it's a simple matter
 of correcting header inclusion.

-- 
Ticket URL: <https://trac.macports.org/ticket/63585#comment:12>
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