From here: https://stackoverflow.com/a/28327499/462608
I tried this:
cmake_minimum_required(VERSION 2.8.12)
project(qtquick_hello_cmake)
set(CMAKE_PREFIX_PATH "/opt/Qt5.9.1/5.9.1/")
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
find_package(Qt5 COMPONENTS Quick Core REQUIRED)
qt5_add_resources(RESOURCES qml.qrc)
add_executable(${PROJECT_NAME} "main.cpp" "qml.qrc")
qt5_use_modules(${PROJECT_NAME} Quick Core)
target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Quick)
Here is the output of cmake .
:~/junk/qtquick_hello_cmake$ cmake .
CMake Error at CMakeLists.txt:11 (find_package):
By not providing "FindQt5.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Qt5", but
CMake did not find one.
Could not find a package configuration file provided by "Qt5" with any of
the following names:
Qt5Config.cmake
qt5-config.cmake
Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR"
to a directory containing one of the above files. If "Qt5" provides a
separate development package or SDK, be sure it has been installed.
-- Configuring incomplete, errors occurred!
See also "/home/.../junk/qtquick_hello_cmake/CMakeFiles/CMakeOutput.log".
This is to show that /opt/Qt5.9.1/ does exist.
:~/junk/qtquick_hello_cmake$ cd /opt/Qt5.9.1/5.9.1/ :/opt/Qt5.9.1/5.9.1$ ls android_armv7 android_x86 gcc_64 Src
Here I run the cmake with -DCMAKE option, but the output is still same:
:~/junk/qtquick_hello_cmake$ cmake -DCMAKE_PREFIX_PATH=/opt/Qt5.9.1/5.9.1/ -DWITH_QT5=1 .
CMake Error at CMakeLists.txt:11 (find_package):
By not providing "FindQt5.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "Qt5", but
CMake did not find one.
Could not find a package configuration file provided by "Qt5" with any of
the following names:
Qt5Config.cmake
qt5-config.cmake
Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR"
to a directory containing one of the above files. If "Qt5" provides a
separate development package or SDK, be sure it has been installed.
-- Configuring incomplete, errors occurred!
See also "/home/.../junk/qtquick_hello_cmake/CMakeFiles/CMakeOutput.log".
Contents of the directory:
:~/junk/qtquick_hello_cmake$ ls CMakeCache.txt CMakeFiles CMakeLists.txt main.cpp main.qml qml.qrc
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Answer
I installed the following missing packages:
sudo apt-get install qtbase5-dev sudo apt-get install qtdeclarative5-dev
Attaching any kind of prefix is not required now:
CMakeList:
:~/junk/qtquick_hello_cmake$ cat CMakeLists.txt
cmake_minimum_required(VERSION 2.8.12)
project(qtquick_hello_cmake)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
find_package(Qt5 COMPONENTS Quick Core REQUIRED)
qt5_add_resources(RESOURCES qml.qrc)
add_executable(${PROJECT_NAME} "main.cpp" "qml.qrc")
qt5_use_modules(${PROJECT_NAME} Quick Core)
target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Quick)
New output:
:~/junk/qtquick_hello_cmake$ ls build CMakeLists.txt main.cpp main.qml qml.qrc :~/junk/qtquick_hello_cmake$ cd build/ :~/junk/qtquick_hello_cmake/build$ rm -rf * :~/junk/qtquick_hello_cmake/build$ cmake ../ -- The C compiler identification is GNU 4.8.4 -- The CXX compiler identification is GNU 4.8.4 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Configuring done -- Generating done -- Build files have been written to: /home/.../junk/qtquick_hello_cmake/build
Errors are gone now.
Thanks to:
https://answers.ros.org/question/236324/could-not-find-a-package-configuration-file-provided-by-qt5widgets/
https://askubuntu.com/questions/508503/whats-the-development-package-for-qt5-in-14-04