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Editorial Team
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Asked: 2026-05-27T02:24:41+00:00

In Eclipse there is an option to specify pre processing defines (#ifdef macros) to

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In Eclipse there is an option to specify pre processing defines (#ifdef macros) to a project by using the Symbols option in Paths and Symbols. This helps in effective indexing of code which is cross platform. Is there any option to provide these in Qt creator?

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  1. Editorial Team

    From the QT Documentation:

    The defines are specified in the .config file. The .config file is a
    regular C++ file, prepended to all your source files when they are
    parsed. Only use the .config file to add lines as in the example
    below:

    #define NAME value

    That is, if you import a project named MyProject, then the pre-processor definitions should be specified in MyProject.config

    For my projects it causes the indexer to recognize this define project wide and changed the auto-complete to reflect this.

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