Set The Include Directory Path

The Include Directory paths are used by the C compiler to find files referenced through #include directives. This is the preferred method of referencing include files that are not at the root of your project directory (as opposed to using relative paths in code: #include "subdirectory/filename.h").


Open the project properties window

Either right click on the top node of the project in the project window and select Properties from the pop-up window, or from the File menu, select Project Properties (ProjectName).

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Select the compiler options

Select the C compiler from the Categories list on the left side of the project properties window. In this example, the XC16 compiler (xc16-gcc) is selected.

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Preprocessing and messages settings

Under the Option categories drop down menu select Preprocessing and messages

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Add include directory path(s)

Click on the text box next to the C include dirs item to open the C include dirs dialog box.

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Create a new path

Click on the Browse button, to select the desired directory.

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