qmake .pro file INCLUDEPATH issue

korai

In the qmake .pro file, I am including QGIS libraries like following:

QGIS_DIR = /home/unibw/dev/QGIS
BUILD_DIR = /home/unibw/dev/cpp/QGIS-Debug-Build
LIBS += -L$${BUILD_DIR}/output/lib -lqgis_app -lqgis_core -lqgis_gui

INCLUDEPATH += $$BUILD_DIR
INCLUDEPATH += $$BUILD_DIR/src/core
INCLUDEPATH += $$BUILD_DIR/src/gui

INCLUDEPATH += $$QGIS_DIR
INCLUDEPATH += $$QGIS_DIR/src/core
INCLUDEPATH += $$QGIS_DIR/src/core/settings
INCLUDEPATH += $$QGIS_DIR/src/core/providers
INCLUDEPATH += $$QGIS_DIR/src/core/geometry
INCLUDEPATH += $$QGIS_DIR/src/core/proj
INCLUDEPATH += $$QGIS_DIR/src/core/metadata
INCLUDEPATH += $$QGIS_DIR/src/core/symbology
INCLUDEPATH += $$QGIS_DIR/external/nlohmann
INCLUDEPATH += $$QGIS_DIR/src/core/expression
INCLUDEPATH += $$QGIS_DIR/src/core/project
INCLUDEPATH += $$QGIS_DIR/src/core/vector
INCLUDEPATH += $$QGIS_DIR/src/core/editform
INCLUDEPATH += $$QGIS_DIR/src/gui
INCLUDEPATH += $$QGIS_DIR/src/core/labeling
INCLUDEPATH += $$QGIS_DIR/src/core/raster
INCLUDEPATH += $$QGIS_DIR/src/core/layertree
INCLUDEPATH += $$QGIS_DIR/src/core/textrenderer

However, I don't understand why writing only for example

INCLUDEPATH += $$QGIS_DIR/src/
INCLUDEPATH += $$QGIS_DIR/external

Or even just writing

INCLUDEPATH += $$QGIS_DIR

doesn't work? Shouldn't qmake find the libraries automatically? Why do I need to write every single path to every header files explicitly?

Christian Ehrlicher

@korai said in qmake .pro file INCLUDEPATH issue:

Shouldn't qmake find the libraries automatically?

No, and you don't define libraries here but include paths for the compiler.

korai

@Christian-Ehrlicher thank you for your reply. Is it the correct way to do? I mean, should I write every single path explicitly? I would expect that

INCLUDEPATH += $$QGIS_DIR/src/core

should work also for other paths beginning with $$QGIS_DIR/src/ for instance:

INCLUDEPATH += $$QGIS_DIR/src/core/settings
INCLUDEPATH += $$QGIS_DIR/src/core/providers
INCLUDEPATH += $$QGIS_DIR/src/core/geometry
...

Christian Ehrlicher

@korai said in qmake .pro file INCLUDEPATH issue:

should work also for other paths beginning with $$QGIS_DIR/src/ for instance:

I don't know where the QGIS headers are, you have to add those include dirs where the headers you're using are in.

korai

@Christian-Ehrlicher

For example, QGIS header files are ordered as follows:

-QGIS
    -src
        -core
               qgsapplication.h
               -settings
                     qgssettings.h
               -maprenderer
                     qgsmaprenderertask.h

When I include QGIS/src/core, then it only includes qgsapplication.h, but I would expect that it includes also qgssettings.h and qgsmaprenderertask.h header files, because they are in the subdirectories(settings and maprenderer) of the core directory. Is there a flag or something to include paths recursively?

SGaist

Hi,

No there's not.

Either you include the subfolder as part of your include statements or you give additional paths to your INCLUDEPATH like you currently do.