Excess Static Libs when using QMake

DalePennington

Folks,
I am using Qt 6.10 and a source build. When I use QMake to generate the make files and the _plugin_import.cpp file I am getting many additional static libraries that I do not need or have added in automatically, such as QSvgIconPlugin.
I can manually edit the generated files to remove them and things work fine, but in the long term I would rather not have to do that. Any idea how to get Qt to not auto add those static plugins?
Thanks
Dale Pennington

jsulm

@DalePennington said in Excess Static Libs when using QMake:

Did you try

QT -= svg

if you do not need SVG?

DalePennington

Tried it, no change. I am trying the cmake file now to see if I can get that to work. Seems to be OK except AUTOMOC is not generating moc files for our basic code tree (with seperate forms,inc and src dirs). Once set the AUTOUIC search path property the forms generated OK, but so far AUTOMOC is not generating the moc. If I turn the tree flat (i.e. put all the files at the top level) it works so there is something I am missing with regards to getting AUTOMOC to look in the right places
Dale

SGaist

Hi,

Might be a silly question but did you set the AUTOMOC_INCLUDE_DIRECTORIES property ?

DalePennington

At this point I have not. I tried at one point and noticed the MOC_INCLUDES variable in AutogenInfo.json did not change, do I probably did something wrong. It does include the include directory I set for the target, but this is not where the AUTOUIC places the ui_.h file it generates. I am assuming that this needs to be findable to get AUTOMOC to work properly, but no good idea how to fix that.

DalePennington

To make help easier, this is the setup

Files are in the following tree

    guiclient2 - Has .pro file
        forms - has ui file
        inc - has .hpp files
        src - has .cpp files

The CMakeLists.txt file has

cmake_minimum_required(VERSION 3.16)
project(guiclient LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

set(CMAKE_AUTOUIC_SEARCH_PATHS "forms")

find_package(Qt5 REQUIRED COMPONENTS Widgets WebSockets)

qt_standard_project_setup()

qt_add_executable(guiclient2
    src/main.cpp
    src/echowindow.cpp
}

target_include_directories(guiclient2 PRIVATE inc)
target_link_libraries(guiclient2 PRIVATE
    Qt::Widgets
    Qt::WebSockets
)

The original cmake call sets up the AutogenInfo.json, so it must be determining what UI and MOC need generating at that time.
As noted, if I do the same files in a flat setup (all in guiclient2) it works fine with the same CMakeLists.txt with the paths modified.

I hope this helps figure out what I am doing wrong.
Dale Pennington

Christian Ehrlicher

Add also your headers. Then automoc will find them and you will see them properly in the IDE.

DalePennington

Odd, not needed in flat file system case, but explicity adding it to the sources did in fact get everything to work.

As a side, not important question, is there a way to add sources to a target after the initial qt_add_executable ? I ask this for ease of future use for programs with large numbers of source files.

Thanks,
Dale Pennington

Christian Ehrlicher

When all is in one directory then automoc can find them. It does not search in subdirectories.

For additional sources - see target_sources cmake command