CMake lib

gistfile1.txt

cmake_minimum_required(VERSION 3.16)

project(linklib_example LANGUAGES CXX)

set(CMAKE_AUTOMOC ON)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(QT NAMES Qt6 REQUIRED COMPONENTS Core )
find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Core )

qt_add_executable(${PROJECT_NAME}
    main.cpp
    Rial.cpp Rial.h
    my_v4l2-ctl.h
)

## Your-external "mylib", add GLOBAL if the imported library is located in directories above the current.
#add_library( mylib SHARED IMPORTED )
## You can define two import-locations: one for debug and one for release.
#set_target_properties( mylib PROPERTIES IMPORTED_LOCATION ${CMAKE_BINARY_DIR}/res/mylib.so )
add_library( libv4l2-ctl_library SHARED IMPORTED GLOBAL )
# You can define two import-locations: one for debug and one for release.
set_target_properties( libv4l2-ctl_library PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_LIST_DIR}/libv4l2-ctl_library.so )

target_link_libraries(${PROJECT_NAME} PUBLIC
    Qt::Core
)
target_link_libraries(${PROJECT_NAME} PUBLIC
    libv4l2-ctl_library
)

# target_include_directories(libv4l2-ctl_library PUBLIC "my_v4l2-ctl.h")

install(TARGETS ${PROJECT_NAME}
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})