How to add include path in Qt Creator

Question

I have a project I m working on in Qt creator that requires a third-party library  I want to add the headers to the include path for the project  How do I do this

User · Answer

If you use custom Makefiles  you can double click on the  includes file and add it there

User · Answer

For anyone completely new to Qt Creator like me  you can modify your project s  pro file from within Qt Creator     Just double-click on  your project name  pro in the Projects window and add the include path at the bottom of the  pro file like I ve done

User · Answer

To add global include path use custom command for qmake in Projects Build Build Steps section in  Additional arguments  like this    QT  your qt modules   DEFINES  your defines   I think that you can use any command from   pro files in that way

User · Answer

If you are using qmake  the standard Qt build system  just add a line to the  pro file as documented in the qmake Variable Reference   INCLUDEPATH     lt your path gt    If you are using your own build system  you create a project by selecting  Import of Makefile-based project    This will create some files in your project directory including a file named  lt your project name gt  includes   In that file  simply list the paths you want to include  one per line   Really all this does is tell Qt Creator where to look for files to index for auto completion   Your own build system will have to handle the include paths in its own way   As explained in the Qt Creator Manual   lt your path gt  must be an absolute path  but you can avoid OS-  host- or user-specific entries in your  pro file by using   PWD which refers to the folder that contains your  pro file  e g   INCLUDEPATH      PWD code include

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