curl.h no such file or directory

Question

I installed curl this command (i use Ubuntu):

sudo apt-get install curl

When I test simple program using 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:

fatal error: curl/curl.h: No such file or directory
compilation terminated.

Can anyone help me?

n. m. could be an AI · Accepted Answer · 2012-07-13T14:06:55.693

202

~~sudo apt-get install curl-devel~~

sudo apt-get install libcurl-dev

(will install the default alternative)

OR

sudo apt-get install libcurl4-openssl-dev

(the OpenSSL variant)

OR

sudo apt-get install libcurl4-gnutls-dev

(the gnutls variant)

edited Jul 13 '12 at 14:06

answered Jul 13 '12 at 13:45

n. m. could be an AI

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4

Does ubuntu have a `curl-devel` package? The virtual `libcurl-dev` is provided by several others, e.g. `libcurl4-openssl-dev`, which worked for me. – DSM Jul 13 '12 at 13:50
Sorry, got my distros mixed up... it should be libcurl-dev, edited the answer – n. m. could be an AI Jul 13 '12 at 13:59
4

Thanks i use `sudo apt-get install libcurl4-openssl-dev` and `g++ test.cpp -L/usr/include/curl/lib -lcurl` – user1518451 Jul 13 '12 at 14:14
You don't need `-L/usr/include/curl/lib`, there's probably no such path. – n. m. could be an AI Jul 13 '12 at 14:26
2

`yum install libcurl-devel` should be the same with another package manager – Nachtgold Nov 22 '13 at 09:53
for me as you mentioned earlier , "sudo yum install curl-devel" worked for centos – Neil Jun 19 '14 at 08:37
FWIW, on Ubuntu 20.04 libcurl4-openssl-dev installs to `/usr/include/x86_64-linux-gnu/curl/curl.h`, and frustratingly - for me at least - `curl-config --cflags` doesn't provide any path – Tony Delroy May 02 '20 at 17:29
`sudo apt-get install libcurl4-openssl-dev` worked – ABCD Sep 29 '22 at 14:21

score 47 · Answer 2 · edited Jul 01 '19 at 17:39

47

To those who use centos and have stumbled upon this post :

 $ yum install curl-devel

and when compiling your program example.cpp, link to the curl library:

 $ g++ example.cpp -lcurl -o example

"-o example" creates the executable example instead of the default a.out.

The next line runs example:

 $ ./example

edited Jul 01 '19 at 17:39

Ted Lyngmo

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answered Apr 25 '16 at 05:56

mouserat

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score 5 · Answer 3 · answered Jul 13 '12 at 13:45

5

Instead of downloading curl, down libcurl.

curl is just the application, libcurl is what you need for your C++ program

http://packages.ubuntu.com/quantal/curl

answered Jul 13 '12 at 13:45

roymustang86

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score 4 · Answer 4 · answered Jul 13 '12 at 13:50

4

yes please download curl-devel as instructed above. also don't forget to link to lib curl:

-L/path/of/curl/lib/libcurl.a (g++)

cheers

answered Jul 13 '12 at 13:50

Moataz Elmasry

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bujnos · Answer 5 · 2019-03-18T13:12:06.083

3

If after the installation curl-dev luarocks does not see the headers:

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/

edited Mar 18 '19 at 13:12

answered Mar 18 '19 at 13:06

bujnos

63
5

score 1 · Answer 6 · answered Feb 09 '22 at 10:45

For those of view who stumbled on this post after a Google of "R curl curl.h no such file or directory" (first link), who are on Windows, and want to install curl in R, the solution is pretty simple and fast.

Launch Rtools Bash from the Rtools folder in the Windows all app menu.
Throw pacman -Syuv in the command line to make sure you're up-to-date.
pacman -S mingw-w64-x86_64-curl fixes the problem. You can now go back to R and install curl without any issues. No more curl.h missing errors.

The pacman -S mingw... command worked for me – samiksc Oct 06 '22 at 10:17 — samiksc, Oct 06 '22 at 10:17

score 1 · Answer 7 · answered Mar 14 '22 at 06:47

1

encountered during building git in Centos 8 Stream.

dnf search libcurl

sudo yum install libcurl

sudo yum install libcurl-devel

Now, everything ran fine, and git installed.

answered Mar 14 '22 at 06:47

Paul Bradbury

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score 0 · Answer 8 · answered Jun 20 '22 at 17:55

You can install libcurl, It can solve the problem. you can find the commands to install it, just check the other answers.

If you still facing the same problem. then what you can do is You can find the curl.h file in your system, and copy files to the required location

you can find the curl file by

find /usr -name 'curl.h'

from the above, you'll get the location. copy the curl file from that location to the required location using the cp command

cp -r CURL_DIR/curl/ REQUIRED_DIR/curl/

score 0 · Answer 9 · answered May 17 '23 at 04:52

0

sudo apt-get install libcurl4-nss-dev

answered May 17 '23 at 04:52

Udesh

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curl.h no such file or directory

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