Including header breaks project

[Redman]

<Bar> is qt module I had to built from source.

In Foo.h I include <Bar>. The project compiles.

In Baz.h I include Foo.h. The project breaks.

Foo.h and Baz.h are part of the same qt_add_qml_module()

CMakeLists.txt

qt_add_qml_module(${PROJECT_NAME} STATIC
    URI core.app
    VERSION 1.0
    RESOURCE_PREFIX core/imports
    SOURCES
        src/plc/Bar.cpp
        src/plc/Bar.h
        src/plc/Foo.cpp
        src/plc/Foo.h
    DEPENDENCIES QtQuick
)

... 

target_link_libraries(${PROJECT_NAME} PRIVATE
    Qt${QT_VERSION_MAJOR}::Core
    Qt${QT_VERSION_MAJOR}::Quick
    Qt${QT_VERSION_MAJOR}::Bar
)

Care to help?

[Redman]

@Christian-Ehrlicher I should've clarified that.

In Foo.h I include <Bar>. The <Bar> is found because it is provided by a qt module.

In Baz.h I include Foo.h. The <Bar> is NOT found anymore. Telling me it's not found in Foo.h.

Since this is a qt module, I do not have to provide an includepath via target_include_directories(). Just to see if it would've worked -> it did not. Not even explicitly telling cmake where to find the header worked

Edit: Sleeping makes wonders!
Baz.h is included in a different target which did not link against the specific qt module.

[Christian Ehrlicher]

@Redman said in Including header breaks project:

The project breaks.

What does this mean?

[Redman]

@Christian-Ehrlicher I should've clarified that.

In Foo.h I include <Bar>. The <Bar> is found because it is provided by a qt module.

In Baz.h I include Foo.h. The <Bar> is NOT found anymore. Telling me it's not found in Foo.h.

Since this is a qt module, I do not have to provide an includepath via target_include_directories(). Just to see if it would've worked -> it did not. Not even explicitly telling cmake where to find the header worked

Edit: Sleeping makes wonders!
Baz.h is included in a different target which did not link against the specific qt module.