iOS Compile Error: Undefined Symbols std::__1::

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James

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Mar 12, 2014, 7:14:36 PM3/12/14
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Q: I am receiving the following compile errors when I add PDFNet to my project:

Undefined symbols for architecture i386:

  "std::__1::basic_streambuf<char, std::__1::char_traits<char> >::seekoff(long long, std::__1::ios_base::seekdir, unsigned int)", referenced from:

      l36403 in PDFNet(all-obfuscated.o)

  "std::__1::basic_streambuf<char, std::__1::char_traits<char> >::seekpos(std::__1::fpos<__mbstate_t>, unsigned int)", referenced from:

      l36403 in PDFNet(all-obfuscated.o)

  "std::__1::basic_streambuf<wchar_t, std::__1::char_traits<wchar_t> >::showmanyc()", referenced from:

      l36335 in PDFNet(all-obfuscated.o)

etc. How can I fix this error?

---------------------

A:

The problem is that the project is set to use the GNU implementation of the standard library (stdc++), and PDFNet is expecting the LLVM implementation of the standard library (libc++). To fix this problem, please be sure of two things:
  1. In your project's settings, that the standard library is set to libc++.
  2. If you are deploying for iOS 7+, then add at least one .mm or .cpp to your project.


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