[CMake] Pass value from CMake to source file?

[Wojciech Migda]

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Eric Noulard pisze:
> 2009/10/4 motes motes <mort.motes at gmail.com>:
>> Is it possible to send a user specified path from CMake to the final
>> application (make it visible)? Depending on which machine I build my
>> application on the path to some images may vary. I was therefore
>> thinking to specify this path when building with CMake like:
>>
>> FIND_PATH(IMAGE_DIR REQUIRED)
>>
>> and then in my application do:
>>
>> #include<string>
>> int main(){
>>
>>   std::string img0 = IMAGE_DIR + "image0.png";
>>   return 0;
>>
>> }
>
> You should use CONFIGURE_FILE for that.
>
> Look for example this section of the Wiki:
> http://www.cmake.org/Wiki/CMake_HowToDoPlatformChecks
My personal favourite would be preprocessor macro:

FIND_PATH(IMAGE_DIR REQUIRED)

ADD_DEFINITIONS( -DIMAGE_DIR=${IMAGE_DIR} )

- -Wojciech
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