Настройка CMakeLists.txt (корневой):

cmake_minimum_required(VERSION 3.16)

project(testModalList_qml VERSION 0.1 LANGUAGES CXX)

set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(Qt6 6.2 COMPONENTS Quick REQUIRED)

add_subdirectory(TestModel)

qt_add_executable(app${PROJECT_NAME}
   main.cpp
   qml.qrc
)
# подключить папку с собранными библиотеками (LIB)
target_link_directories(${PROJECT_NAME} PUBLIC
   "~/.local/lib/"
  )
# подключить папку с собранными заголовочными файлами библиотеки (INCLUDE)
target_include_directories(${PROJECT_NAME} PUBLIC
  "~/.local/include/"
  )
target_link_libraries(app${PROJECT_NAME}
   PRIVATE Qt6::Quick
   TestModel
)

install(TARGETS app${PROJECT_NAME}
   BUNDLE DESTINATION .
   LIBRARY DESTINATION ${ CMAKE_INSTALL_LIBDIR}) 

 

Настройка CMakeLists.txt (вложенный):

cmake_minimum_required(VERSION 3.19)
project(TestModel VERSION 0.1 LANGUAGES CXX)


find_package(Qt6 6.5 REQUIRED COMPONENTS Core Quick)


qt_standard_project_setup()

add_library(${PROJECT_NAME}
   TestModel.h TestModel.cpp
   Test.h Test.cpp
)

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


install(TARGETS ${PROJECT_NAME}
   BUNDLE  DESTINATION .
   RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
   LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
 

Истановка в директорию /tmp/123:

cd .../project/
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/tmp/123 ..
make
make install