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cmake引用jansson库
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cmake引用jansson库
描述
在ubuntun系统上使用clion开发c程序, cmake如何引入jansson库.
下载jansson
wget http://digip.org/jansson/releases/jansson-2.13.tar.gztar -xvf |
编译jansson
cd jansson-2.13mkidr buildcd buildcmake ../make |
查看编译结果
├── include│ ├── jansson_config.h│ └── jansson.h├── lib│ └── libjansson.a |
clion创建C程序
File->New->Project->选中"C Executable"
CMakeLists.txt引用jansson
cmake_minimum_required(VERSION 3.22)project(demo_task C)set(CMAKE_C_STANDARD 11)#自定义库, jansson放在了source目录下set(LIBHOME "/home/xxx/workspace/source/")# janssoninclude_directories(${LIBHOME}/jansson-2.13/build/include)link_directories(${LIBHOME}/jansson-2.13/build/lib)link_libraries(jansson)add_executable(demo_task main.c) |
main.c使用jansson
创建demo.json并放入任意json数据, jansson读取demo.json,并打印结果
#include <stdio.h>#include <jansson.h>int main() {json_t *json;json_error_t error;json = json_load_file("../demo.json", 0, &error);if(!json) {/* the error variable contains error information */}char *result = json_dumps(json, 0);printf("%s\n", result);free(result);return 0;} |
clion运行并查看结果
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