[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   |
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Comment (by jmroot):

 Replying to [comment:9 mascguy]:
 > In terms of where I'm currently at: Based on the compilation errors
 related to C99, my first thought was to patch the build to specify C11.
 But that alone didn't make a difference, which suggests that there's more
 to it.

 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).

-- 
Ticket URL: <https://trac.macports.org/ticket/63585#comment:11>
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