Configuration tips for building Linux industrial automation applications using CMake

Configuration tips for building Linux industrial automation applications using CMake

Industrial automation applications play an important role in the modern industrial field. In order to facilitate developers to manage and build projects, using a powerful build tool is essential. On Linux systems, CMake is a widely used build tool. This article will introduce how to use CMake to configure and build Linux industrial automation applications, and provide relevant code examples.

1. Installing CMake

First, you need to install CMake on the Linux system. You can install CMake by executing the following command through the command line terminal:

$ sudo apt-get install cmake

After the installation is complete, you can use the following command to verify whether CMake is installed successfully:

$ cmake --version

2. Create CMakeLists.txt file

Create a file named CMakeLists.txt in the root directory of the project. This file is a CMake configuration file that describes the project's build rules and dependencies. The following is an example of a simple CMakeLists.txt file:

# CMake版本要求
cmake_minimum_required(VERSION 3.10)

# 设置项目名称
project(MyIndustrialApp)

# 设置编译器
set(CMAKE_CXX_COMPILER g++)

# 设置C++标准
set(CMAKE_CXX_STANDARD 11)

# 添加源文件
set(SOURCES main.cpp foo.cpp bar.cpp)

# 添加可执行文件
add_executable(MyIndustrialApp ${SOURCES})

# 添加库文件
target_link_libraries(MyIndustrialApp pthread)

In the above example, first specify the required CMake version via the cmake_minimum_required command. Then set the project name through the project command. Next, set the compiler and C standard through the set command. Then use the set command to define a variable SOURCES to store the source files of the project. Finally, add executable files through the add_executable command and add library files through the target_link_libraries command.

3. Configuration dependencies

In industrial automation applications, it is often necessary to rely on some third-party libraries. In CMake, these dependencies can be configured and used using the find_package command. The following is an example of using the OpenCV library:

# 查找OpenCV库
find_package(OpenCV REQUIRED)

# 如果找到了OpenCV库，将其添加到可执行文件
if(OpenCV_FOUND)
    include_directories(${OpenCV_INCLUDE_DIRS})
    target_link_libraries(MyIndustrialApp ${OpenCV_LIBS})
endif()

In the above example, the OpenCV library is found through the find_package command. If the OpenCV library is found, add the include path through the include_directories command, and link the OpenCV library into the executable file through the target_link_libraries command.

4. Build the project

After the configuration is completed, you can use the following command to build the project:

$ mkdir build
$ cd build
$ cmake ..
$ make

The above command will generate a Makefile in the project's build directory file and use the make command to compile and link.

5. Run the application

After the project is built, you can use the following command to run the application:

$ ./MyIndustrialApp

This command will execute the name MyIndustrialApp executable file.

Summary

This article introduces how to use CMake to configure and build Linux industrial automation applications. First, you need to install CMake and create a CMakeLists.txt configuration file. You can then configure dependencies and use the command line terminal to build and run the application. CMake is a powerful build tool that can greatly simplify the project management and build process.

I hope this article will be helpful when you build industrial automation applications on Linux systems. If you have any questions, please feel free to ask. I wish you success in the field of industrial automation!

The above is the detailed content of Configuration tips for building Linux industrial automation applications using CMake. For more information, please follow other related articles on the PHP Chinese website!