[MacPorts] #61876: libicns: error: implicit declaration of function 'unlink' is invalid in C99 (was: libicns fails build in MacOS 11.1)

[MacPorts]

#61876: libicns: error: implicit declaration of function 'unlink' is invalid in C99
-----------------------------+-----------------------------
  Reporter:  SpikeLightfoot  |      Owner:  dardo82
      Type:  defect          |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.6.4
Resolution:                  |   Keywords:  bigsur catalina
      Port:  libicns         |
-----------------------------+-----------------------------
Changes (by ryandesign):

 * keywords:   => bigsur catalina


Old description:

> ...
> :info:build png2icns.c:328:4: error: implicit declaration of function
> 'unlink' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
> ...

New description:

 {{{
 ...
 :info:build png2icns.c:328:4: error: implicit declaration of function
 'unlink' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
 ...
 }}}

--

Comment:

 The usual Xcode 12 issue. I'll take a look.

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Ticket URL: <https://trac.macports.org/ticket/61876#comment:2>
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