Qt – overriding qt4 compile time settings

This is what worked for me [VS2010, Qt Add-in 1.1.8], for an existing project:

As in the docs at http://doc.qt.io/qt-4.8/appicon.html :

• Add icon file (myappico.ico) to source dir

• Create myapp.rc file with the line

  IDI_ICON1 ICON DISCARDABLE "myappico.ico"

[Of course, the file names are free to choose, as long as they are consistent]

• Right-click project, choose Add | Existing item... and pick the RC file

• Rebuild

I had the exact same problem. I came up with the following solution:

Create a QRC file that contains only the expected QM files, and give it a different prefix so it won't conflict with your other resources:

<RCC>
    <qresource prefix="/translators">
    <file>myapp_en.qm</file>
    </qresource>
</RCC>

Add a CMake rule to copy the QRC file to the output directory and then another rule to run the resource compiler:

# Change 'myapp_en' to be the base file name of the qrc file.
SET( trans_file myapp_en )
SET( trans_srcfile ${CMAKE_CURRENT_SOURCE_DIR}/${trans_file}.qrc)
SET( trans_infile ${CMAKE_CURRENT_BINARY_DIR}/${trans_file}.qrc)
SET( trans_outfile ${CMAKE_CURRENT_BINARY_DIR}/qrc_${trans_file}.cxx)

# Copy the QRC file to the output directory, because the files listed in the 
# qrc file are relative to that directory.
ADD_CUSTOM_COMMAND(
    OUTPUT ${trans_infile}
    COMMAND ${CMAKE_COMMAND} -E copy ${trans_srcfile} ${trans_infile}
    MAIN_DEPENDENCY ${trans_srcfile}
    )

# Run the resource compiler (rcc_options should already be set). We can't
# use QT4_ADD_RESOURCES because the qrc file may not exist yet.
ADD_CUSTOM_COMMAND(
    OUTPUT ${trans_outfile}
    COMMAND ${QT_RCC_EXECUTABLE}
    ARGS ${rcc_options} -name ${trans_file} -o ${trans_outfile} ${trans_infile}
    MAIN_DEPENDENCY ${trans_infile}
    DEPENDS ${qm_files}
    )

# Add compiled resources to executable dependency list
ADD_EXECUTABLE( ${APP_NAME} ... ${trans_outfile} )

Use ${Qt5Core_RCC_EXECUTABLE} instead of ${QT_RCC_EXECUTABLE} if you use Qt 5.