[MacPorts] #61630: p5-extutils-makemaker @7.560.0_0: adds -Wno-error=implicit-function-declaration

[MacPorts]

#61630: p5-extutils-makemaker @7.560.0_0: adds -Wno-error=implicit-function-
declaration
--------------------------+-----------------------------------
 Reporter:  chrstphrchvz  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:
 Keywords:                |       Port:  p5-extutils-makemaker
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 See https://rt.cpan.org/Public/Bug/Display.html?id=133493,
 https://github.com/Perl-Toolchain-Gang/ExtUtils-
 MakeMaker/blob/v7.56/lib/ExtUtils/MM_Darwin.pm#L65: because many
 old/unmaintained CPAN modules have implicit function declarations and fail
 to compile using Xcode 12, recent ExtUtils::MakeMaker have been adding
 `-Wno-error=implicit-function-declaration` to builds on Darwin. Based on
 the explanation I've heard that this can lead to compiling broken software
 on macOS for ARM 64-bit, should ExtUtils::MakeMaker not add this flag?
 Should MacPorts remove the flag from it for now?

 I imagine the currently-affected Perl modules may only be the ones
 manually depending on `port:p${perl5.major}-extutils-makemaker`, unless
 building without trace mode on a system with `p${perl5.major}-extutils-
 makemaker` installed; otherwise modules will build with older
 ExtUtils::MakeMaker from `perl${perl5.major}`.

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Ticket URL: <https://trac.macports.org/ticket/61630>
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