libcurl 静态库编译
1.下载最新版的libcurl,并解压。(本例以vs2013 + curl-7.52.1.zip为例)
2.打开VS2013 开发人员命令提示,并CD进入 curl-curl-7_52_1/winbuild/ 目录
VS生成代码的时候有一个运行库选项(项目属性 - 配置属性 - C/C++ - 代码生成 - 运行库)/MT和/MD(/MTd和/MDd是对应的debug版本)
就是说你编译时如果加了RTLIBCFG=static这个选项,就相当于编译了/MT版本的libcurl,否则是/MD版本的
nmake /f Makefile.vc mode=static VC=12 RTLIBCFG=static
完成编译后libcurl静态库会出现在builds目录下包括头文件和libcurl_a.lib,我们需要的是builds/libcurl-vc12-x86-release-static-ipv6-sspi-winssl下面的include和lib两个文件夹
3.测试
项目->属性->c/c++ ->代码生成->运行库->/MT
// curl_test.cpp : 定义控制台应用程序的入口点。
#define CURL_STATICLIB
#include <iostream>
#include <curl.h>
#pragma comment(lib, "libcurl_a.lib")
using namespace std;
/**
* 一旦curl接收到数据,就会调用此回调函数
* buffer:数据缓冲区指针
* size:调试阶段总是发现为1
* nmemb:(memory block)代表此次接受的内存块的长度
* userp:用户自定义的一个参数
*/
size_t write_data(void* buffer, size_t size, size_t nmemb, void* userp)
{
static int current_index = 0;
cout << "current:" << current_index++;
cout << (char*)buffer;
cout << "---------------" << endl;
int temp = *(int*)userp; // 这里获取用户自定义参数
return nmemb;
}
int main()
{
curl_global_init(CURL_GLOBAL_ALL); // 首先全局初始化CURL
CURL* curl = curl_easy_init(); // 初始化CURL句柄
if (NULL == curl)
{
return 0;
}
int my_param = 1; // 自定义一个用户参数
// 设置目标URL
curl_easy_setopt(curl, CURLOPT_URL, "http://www.baidu.com");
// 设置接收到HTTP服务器的数据时调用的回调函数
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
// 设置自定义参数(回调函数的第四个参数)
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &my_param);
// 执行一次URL请求
CURLcode res = curl_easy_perform(curl);
// 清理干净
curl_easy_cleanup(curl);
return 0;
}
配置选项:
nmake /f Makefile.vc mode=<static or dll> <options>
where <options> is one or many of:
VC=<6,7,8,9,10,11,12,14> - VC versions
WITH_DEVEL=<path> - Paths for the development files (SSL, zlib, etc.)
Defaults to sibbling directory deps: ../deps
Libraries can be fetched at http://windows.php.net/downloads/php-sdk/deps/
Uncompress them into the deps folder.
WITH_SSL=<dll or static> - Enable OpenSSL support, DLL or static
WITH_MBEDTLS=<dll or static> - Enable mbedTLS support, DLL or static
WITH_CARES=<dll or static> - Enable c-ares support, DLL or static
WITH_ZLIB=<dll or static> - Enable zlib support, DLL or static
WITH_SSH2=<dll or static> - Enable libSSH2 support, DLL or static
ENABLE_SSPI=<yes or no> - Enable SSPI support, defaults to yes
ENABLE_IPV6=<yes or no> - Enable IPv6, defaults to yes
ENABLE_IDN=<yes or no> - Enable use of Windows IDN APIs, defaults to yes
Requires Windows Vista or later, or installation from:
https://www.microsoft.com/downloads/details.aspx?FamilyID=AD6158D7-DDBA-416A-9109-07607425A815
ENABLE_WINSSL=<yes or no> - Enable native Windows SSL support, defaults to yes
GEN_PDB=<yes or no> - Generate Program Database (debug symbols for release build)
DEBUG=<yes or no> - Debug builds
MACHINE=<x86 or x64> - Target architecture (default is x86)
精简配置
nmake /f Makefile.vc mode=static VC=12 RTLIBCFG=static ENABLE_IPV6=no ENABLE_WINSSL=no ENABLE_SSPI=no