[MacPorts] #71917: git fails to honor MacPorts cppflags: error: implicit declaration of function 'getline'

[MacPorts]

#71917: git fails to honor MacPorts cppflags: error: implicit declaration of
function 'getline'
-----------------------------+--------------------
  Reporter:  barracuda156    |      Owner:  (none)
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.10.5
Resolution:                  |   Keywords:
      Port:  git, git-devel  |
-----------------------------+--------------------

Comment (by barracuda156):

 I think the correct code would be this:
 {{{
 set CFLAGS          "${configure.cppflags} ${configure.cflags} -std=gnu99
 [get_canonical_archflags cc]"
 }}}
 Since apparently `legacy-support` passes its flag as a cppflag, not cflag.

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Ticket URL: <https://trac.macports.org/ticket/71917#comment:3>
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