Source code and target file download: click
introduce
JSON-C is a C language library for parsing and generating JSON data. In some cases, you may need to cross-compile the JSON-C library to other platforms or systems. This tutorial will show you how to cross-compile the JSON-C library.
step
Step 1: Prepare the cross-compilation toolchain
First, you need to prepare a cross-compilation toolchain suitable for the target platform. This toolchain includes cross-compilers, linkers, and other related tools. You can obtain the toolchain from the vendor or developer of the cross-compilation toolchain.
Step 2: Get the JSON-C source code
Before cross-compiling, you need to obtain the source code of the JSON-C library. The latest version of the source code can be downloaded from the official website or the project page on GitHub.
Step 3: Configure the cross-compilation environment
Before starting the configuration, make sure that the environment variables of the cross-compilation toolchain have been set. For example, on a Linux system, the environment variable can be set with the following command:
export PATH=<交叉编译工具链路径>:$PATH
export CC=<交叉编译器路径>
export CXX=<交叉编译器路径>
export LD=<链接器路径>
export AR=<静态库归档器路径>
Please replace <交叉编译工具链路径>, <交叉编译器路径>, <链接器路径>and <静态库归档器路径>with the paths you actually use.
Step 4: Download and unzip the JSON-C source code
Execute the following commands on the command line to download and unzip the JSON-C source code:
wget https://github.com/json-c/json-c/archive/master.zip
unzip master.zip
This will download and unpack the latest source code for JSON-C.
Step 5: Enter the source code directory and configure cross-compilation parameters
Enter the source code directory:
cd json-c-master
View configure compilation parameter settings
./configure --help
Run the configuration script and set the cross-compilation parameters:
./autogen.sh
./configure --host=<目标系统架构> --prefix=<安装路径> --disable-shared
Please <目标系统架构>replace with the architecture of your target system, such as arm-linux-gnueabi. and <安装路径>replace with the path where you want the JSON-C library installed.
Step 6: Compile and Install
Execute the following command to compile:
./configure --host=arm-linux-gnueabihf --prefix=/home/xxx/json-c/json-c-json-c-0.13/build --disable-shared
make
Then, install it with the following command:
make install
This will install the JSON-C library and its associated files to the specified install path.
Step 7: Migrate and apply on the target system
Copy the JSON-C library files and header files generated by cross-compilation to the corresponding locations in the target system. Make sure the required runtime libraries and header files are installed on the target system.
In your application, use the correct header files and link the generated library files. For example, when compiling your application, link the JSON-C library with the following parameters:
-ljson-c -L<path_to_jsonc_lib> -I<path_to_jsonc_include>
Please <path_to_jsonc_lib>replace with the location of the JSON-C library and <path_to_jsonc_include>with the location of the JSON-C header file.
in conclusion
This tutorial shows you how to cross-compile the JSON-C library. You can successfully convert JSON to -C library to cross compile to other platforms or systems.
Hope this detailed tutorial is helpful to you! If you have any questions, please feel free to ask.