in reply to Re^3: Inline::CPP + OpenCV = problems
in thread Inline::CPP + OpenCV = problems

the order is determined by Inline::CPP when it creates the XS file in folder _Inline/build. Perl headers come first

Inline::C has the PRE_HEAD Config option that enables one to place the code of one's choice *before* the perl headers. I haven't specifically checked, but I would expect the PRE_HEAD option works also with Inline::CPP.

Cheers,
Rob

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Re^5: Inline::CPP + OpenCV = problems
by bliako (Abbot) on Nov 20, 2019 at 23:41 UTC

    but how that would work with the headers in the __CPP__ section? Must I remove the headers from the __CPP__ section and add them to the pre_head string?

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      Must I remove the headers from the __CPP__ section and add them to the pre_head string?

      Yep - that's what I'd be trying.
      If the XS file that's currently being generated is of the form: 
      Perl headers
CV headers
Other code

      [download]
      You should be able (with the help of PRE_HEAD) to generate an XS file of the form: 
      CV headers
Perl headers
Other code

      [download]
      I don't know, however, if that will actually solve the problem.

      Cheers,
      Rob
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        got it thanks.

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