Tuesday, August 21, 2018

ide - Problems importing libraries to my c++ project, how to fix this?

It's a common misconception, that the current IDE used, is responsible for getting errors like stated in the question.
See for example





The problem is almost never related to the currently used IDE.
In the most cases the solution boils down, to supply the actual toolchain's compiler/linker with the appropriate path's to search for included headers, to be linked libraries.



One of the major applicable answers for the linker related problems are











Most of the common IDEs provide features to configure this for a specific project. Here are some samples






Eclipse-CDT




Include path settings:
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Library & library search path settings
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Visual Studio 2013




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Code Blocks
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**DEV C++ (Bloodshed C++)



As from their FAQ:




9. How can i use the OpenGL library and others ?



All the libraries that comes with Mingw reside in the Lib directory. They are all named in the following way: lib*.a
To link a library with your project, just add in Project options, Further option files :
-lopengl32
This is for including the libopengl32.a library. To add any other library, just follow the same syntax:

Type -l (L in lowercase) plus the base name of the library (filename without lib and the .a extension).




You may also consider putting a -L option there to add directory pathes searched for libraries.






Qt Creator



In order to add include paths you have to open up the .pro file and then add

the directories to the INCLUDEPATH variable. These paths are separated by spaces. Reference can be found here.



Showing INCLUDEPATH






If none of the above samples applies for your actually used IDE/toolchain, I hope you're able to get the point of abstraction:




It's an issue how to provide compiling/linking options to your actual toolchain. The IDE used to setup the context is a minor point here.



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