I want to use the muparser library in an c++ application. I use Xcode und Mac Os X El Capitan to code. The library was installed using HomeBrew as brew install muparser but if I compile this sample code I get errors of the type Undefined symbols for architecture x86_64. I searched a bit and found that it might be due to static libraries which are compiled only for 32 bit. Question: Can I fix this somehow by either telling HomeBrew to install the 64 bit variant or directly in Xcode?
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Homebrew is x86_64 by default unless you add `--32-bit`. Problem is somewhere else – Ivan Aksamentov - Drop Oct 29 '15 at 14:21
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Possible duplicate of [What is an undefined reference/unresolved external symbol error and how do I fix it?](http://stackoverflow.com/questions/12573816/what-is-an-undefined-reference-unresolved-external-symbol-error-and-how-do-i-fix) – Ivan Aksamentov - Drop Oct 29 '15 at 14:22