Error parsing libcurl header

[intael]

I'm trying to mock libcurl using the following command:

/Users/u/.rbenv/shims/ruby /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock.rb -o/Users/u/repositories/rofi-reddit/cmock_curl.yaml /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/curl/curl.h

The config (cmock_curl.yaml ) looks like this:

:cmock:
  :verbosity: 3
  :subdir: curl
  :mock_path: ../tests
  :mock_prefix: mock_
  :plugins:
    - :callback
    - :ignore
  :attributes:
    - CURL_EXTERN
    - CURL_DEPRECATED

I'm getting the following error:

/Users/u/.rbenv/shims/ruby /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock.rb -o/Users/u/repositories/rofi-reddit/cmock_curl.yaml /Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk/usr/include/curl/curl.h
/Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock_header_parser.rb:600:in `parse_declaration': Failed Parsing Declaration Prototype! (RuntimeError)
  declaration: 'CURL_EXTERN CURLFORMcode CURL_DEPRECATED(7.56.0, "Use curl_mime_init()")curl_formadd(struct curl_httppost **httppost, struct curl_httppost **last_post, ...)'
  modifier: ''
  return: {:type => '', :name => 'cmock_to_return', :str => ' cmock_to_return', :void? => false, :ptr? => false, :const? => false, :const_ptr? => false}
  function: ')curl_formadd'
  args: [
    {:ptr? => true, :const? => false, :const_ptr? => false, :name => 'httppost', :type => 'struct curl_httppost**'}
    {:ptr? => true, :const? => false, :const_ptr? => false, :name => 'last_post', :type => 'struct curl_httppost**'}
  ]

	from /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock_header_parser.rb:46:in `block in parse'
	from /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock_header_parser.rb:45:in `map'
	from /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock_header_parser.rb:45:in `parse'
	from /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock.rb:50:in `generate_mock'
	from /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock.rb:34:in `block in setup_mocks'
	from /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock.rb:33:in `each'
	from /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock.rb:33:in `setup_mocks'
	from /Users/u/repositories/rofi-reddit/lib/CMock/lib/cmock.rb:125:in `<main>'

This is how that function definition looks like in curl.h:

CURL_EXTERN CURLFORMcode CURL_DEPRECATED(7.56.0, "Use curl_mime_init()")
curl_formadd(struct curl_httppost **httppost,
             struct curl_httppost **last_post,
             ...);

Looking at the error and what CMock reports as the function (function: ')curl_formadd'), my guess is that CMock is stripping newlines and this results in the CURL_DEPRECATED macro and the function name ending up merged. CMock's regex to capture the function gets confused and results in this.

I have tried several combinations of :strippables:, but none seems to do the trick. I'm using CMock at the v2.6.0 tag and ruby 2.7.7. Any ideas? Has anyone tried mocking libcurl at all?