C++ curl.h 没有这样的文件或目录
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curl.h no such file or directory
提问by user1518451
I installed curl this command (i use Ubuntu):
我安装了 curl 这个命令（我使用 Ubuntu）：
sudo apt-get install curl
When I test simple program using g++ test.cpp
当我使用 g++ test.cpp
#include <stdio.h>
#include <curl/curl.h>
int main(void)
{
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* Perform the request, res will get the return code */
res = curl_easy_perform(curl);
/* Check for errors */
if(res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n",
curl_easy_strerror(res));
/* always cleanup */
curl_easy_cleanup(curl);
}
return 0;
}
g++shows me:
g++给我看：
fatal error: curl/curl.h: No such file or directory
compilation terminated.
Can anyone help me?
谁能帮我？
回答by n. 'pronouns' m.
sudo apt-get install curl-devel
sudo apt-get install curl-devel
sudo apt-get install libcurl-dev
(will install the default alternative)
（将安装默认的替代品）
OR
或者
sudo apt-get install libcurl4-openssl-dev
(the OpenSSL variant)
（OpenSSL 变体）
OR
或者
sudo apt-get install libcurl4-gnutls-dev
(the gnutls variant)
（gnutls 变体）
回答by mouserat
To those who use centos and have stumbled upon this post :
对于那些使用 centos 并偶然发现这篇文章的人：
$ yum install curl-devel
and when compiling your program example.cpp, link to the curl library:
并在编译您的程序时example.cpp，链接到 curl 库：
$ g++ example.cpp -lcurl -o example
"-o example" creates the executable exampleinstead of the default a.out.
" -o example" 创建可执行文件example而不是默认值a.out。
The next line runs example:
下一行运行example：
$ ./example
回答by roymustang86
Instead of downloading curl, down libcurl.
而不是下载 curl，而是下载 libcurl。
curl is just the application, libcurl is what you need for your C++ program
curl 只是应用程序，libcurl 是您的 C++ 程序所需要的
回答by Moataz Elmasry
yes please download curl-devel as instructed above. also don't forget to link to lib curl:
是的，请按照上面的说明下载 curl-devel。也不要忘记链接到 lib curl：
-L/path/of/curl/lib/libcurl.a (g++)
cheers
干杯
回答by bujnos
If after the installation curl-dev luarocks does not see the headers:
如果安装 curl-dev luarocks 后没有看到标题：
find /usr -name 'curl.h'
Example: /usr/include/x86_64-linux-gnu/curl/curl.h
luarocks install lua-cURL CURL_INCDIR=/usr/include/x86_64-linux-gnu/
