How to setup paths in a pro file

[robsofmar]

Hi Guys,

How do I do the following;

This is a simplification of the map setup I have so far

projects
    project_1
        file_a.cpp
        file_a.h
        file_b.cpp
        file_b.h

projects
    project_1
        file_a.cpp
        file_a.h
        file_b.cpp
        file_b.h

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and now I want to do the following

projects
    project_1
        file_a.cpp
        file_a.h
    shared
        file_b.cpp
        file_b.h
    project_2
        file_c.cpp
        file_c.h

projects
    project_1
        file_a.cpp
        file_a.h
    shared
        file_b.cpp
        file_b.h
    project_2
        file_c.cpp
        file_c.h

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So I want to share file_b over two projects. Everytime I open project 1 or 2 I get to file_b and if I make changes in project 1, file_b is updated so project 2 can also make use of the new functionality.

How do I proceed to make this possible?

Many thanks in advance!
Rob