CMake error “Can't link to the standard math library”

Question

While trying to configure my c++ project using CMake I was faced with the following error message:

The C compiler identification is unknown The CXX compiler identification is unknown CMake Error at nestk/deps/eigen/CMakeLists.txt:71 (message): Can't link to the standard math library. Please report to the Eigen developers, telling them about your platform. Configuring incomplete, errors occurred!

Has anyone a hint of how to fix this problem?

Any help is much appreciated.

I'm using: Windows 7 x64, CMake 2.8.10.2, VS2010 Ultimate

Are you running cmake from a Visual Studio command prompt? — Fraser
I am neither running cmake from the Visual Studio promt (I am working with the CMake-gui) nor choosing the "Visual Studio 10 Win64" generator (I took "Visual Studio 10" as the generator). — user2022955

TheGoatMan7 TheGoatMan7 · Accepted Answer · 2014-08-20T21:57:40

This happens because

#include <cmath>

does not compile on your machine. You will have to get this on your path to get around the standard math library error (I am working in ubuntu, but I had to install the gcc compiler). Try compiling and running this program:

#include<cmath>
#include<iostream>
int main() { std::cout << std::sin(0.0) << std::endl; std::cout << std::log(0.0f) << std::endl; }

Once you can do that, then make sure to remove the build directory you were running cmake in and try to build again.

CMake error “Can't link to the standard math library”

1 Answers