[MacPorts] #61622: p5-www-curl @4.17: error: use of undeclared identifier 'CURL_WIN32' 'CURLOPT'

[MacPorts]

#61622: p5-www-curl @4.17: error: use of undeclared identifier 'CURL_WIN32'
'CURLOPT'
--------------------------+----------------------
  Reporter:  ryandesign   |      Owner:  fracai
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.4
Resolution:               |   Keywords:
      Port:  p5-www-curl  |
--------------------------+----------------------

Comment (by ryandesign):

 Replying to [ticket:61622 ryandesign]:
 > {{{
 >
 /Library/Developer/CommandLineTools/SDKs/MacOSX11.0.sdk/usr/include/AvailabilityInternal.h:142:2:
 error: #endif without #if
 > }}}

 This is discussed here:

 https://rt.cpan.org/Public/Bug/Display.html?id=131089 \\
 https://github.com/szbalint/WWW--Curl/issues/16#issuecomment-558645508 \\
 https://stackoverflow.com/questions/42031921/unterminated-unconditional-
 directive-error-when-preprocessing-c-code

 It seems to happen because WWW::Curl's Makefile.PL invokes `cpp` and `cpp`
 has a bug that makes it unable to parse these system headers. The fix is
 apparently to use `$CC -E` instead of `cpp`, if we can figure out how to
 get the value of `$CC` in Makefile.PL.

-- 
Ticket URL: <https://trac.macports.org/ticket/61622#comment:3>
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