Warning messages in link phase using Math.h++ in OWL project

Problem

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I am trying to use Math.h++ in an OWL project. Everything compiles, but during the link phase, the following errors are received:

 

Linker Error: Undefined symbol 
    istream::operator >>(char far&) 
    in library file ........
oguemath513libmthlw.lib 
    in module rwslice 
Linker Error: Undefined symbol 
    istream::operator >>(int far&) 
    in library file ........
oguemath513libmthlw.lib 
    in module rwslice 
Linker Error: Undefined symbol 
    istream::putback(char) 
    in library file ........
oguemath513libmthlw.lib 
    in module rwslice 
Linker Error: Undefined symbol 
    istrstream::istrstream(char far*) 
    in library file ........
oguemath513libmthlw.lib 
    in module rwslice 
Linker Error: Undefined symbol 
    istrstream::~istrstream() 
    in library file ........
oguemath513libmthlw.lib 
    in module rwslice 
Linker Error: Undefined symbol 
    istream::~istream() 
    in library file ........
oguemath513libmthlw.lib 
    in module rwslice 
Linker Error: Undefined symbol 
    istream::get(char far&) 
    in library file ........
oguemath513libmthlw.lib 
    in module dvecio 
Linker Error: Undefined symbol 
    istream::operator >>(double far&) 
    in library file ........
oguemath513libmthlw.lib 
    in module dvecio 
Linker Error: Undefined symbol 
    ostream::outstr(const char far*,const char far*) 
    in library file ........
oguemath513libmthlw.lib 
    in module dvecio 
Linker Error: Undefined symbol 
    ostream::operator <<(long double) 
    in library file ........
oguemath513libmthlw.lib 
    in module dvecio 
Linker Error: Undefined symbol 
    ostream::operator <<(long) 
    in library file ........
oguemath513libmthlw.lib 
    in module ivecio 

 

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Cause

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This is caused by compiling the Math.h++ libraries using the static version of the runtime library and trying to link this library with a project that is trying to use a dynamic version of the library (ie. compiled with the _RTLDLL macro defined - this is the default option).

 

 

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Action

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When using a static version of Math.h++, you must make sure you use a static version of the C runtime library. You can select this from Target Expert. To do this, go to your project window, press the right mouse button, and select Target Expert... Then under the Standard Libraries block, you must choose static. Then rebuild your entire project and these errors will go away.