Linked library not found at compilation.



  • Hi, I have a project where the structure is basically:

    root
    --myprojects
    ----project1
    ----...
    ----projectn
    --3rdparty
    ----party1
    ------include -> headers only
    ------lib ->ddl, .a lib
    ----party2
    ------party2.pro -> compilable project

    Inside project1.pro, I want to include qwt. so I have something like :

    @
    QWT_PROJECT_DIR = $${TOOLBOX_ROOT}/$${QWT_DIR}

    INCLUDEPATH += $${QWT_PROJECT_DIR}/include/

    win32{
    win32-g++{
    LIBS += -L$${QWT_PROJECT_DIR}/lib/ -lqwtd5
    }
    else{
    #MSVC
    LIBS += $${QWT_PROJECT_DIR}/lib/qwtd5.lib
    }
    }
    else{
    LIBS += -L$${QWT_PROJECT_DIR}/lib/ -lqwtd5
    }
    @

    On one side I can find the h. files, meaning that they are well resolved but on the other side,
    I got a "cannot find -lqwtd5"

    Do somebody know why is that??
    In general, I want to be able to compile each one of my projects without copying the libraries everywhere.



  • Never mind, found the solution.
    For some reasons, when adding a new lib directory with LIBS +=, you need
    to insert the complete path while INCLUDEPATH work with relative paths as ../../include



  • INCLUDEPATH, as "documented":http://doc.qt.nokia.com/4.7/qmake-variable-reference.html#includepath, is for including header files. I think you were looking for VPATH and/or DEPENDPATH.


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