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Getting LibCurl to work with Visual Studio 2013

I am having trouble getting LibCurl to work with Visual Studio 2013. I downloaded the current version (curl-7.33.0) and tried following the instructions I found on this site: Using LibCurl with Visual 2010

But I can't find curllib.lib in the folder I downloaded. And I am still getting errors: enter image description here

After searching the internet for more help. I now get these error messages. There appears to be a problem with linking to libcurl.lib?

enter image description here

This is what I have configured: enter image description here


enter image description here

Inside /lib I have libcurl.lib and libcurl.dll


UPDATE

I downloaded this release for Win32 MSVC: http://curl.haxx.se/download.html#Win32 After adding the libcurl libraries and successfully compiling, I am now getting this error message:

 The application was unable to start correctly (0xc000007b). Click OK to close the application. 

Here is the sample code I am trying to run:

#include <iostream> #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://google.com");         res = curl_easy_perform(curl);          /* always cleanup */         curl_easy_cleanup(curl);     }     return 0; } 

FINAL UPDATE

I believe I have gotten LibCurl to work with Visual Studio 2013 now. Persistence ftw! Although, after spending hours trying to solve these error messages, I am a little hesitant at saying everything is working fine now. That is why I am putting a bounty on this question to get clear and concise instructions on getting LibCurl to work with Visual Studio 2013.

This is what I did to get it to work:

  1. First, download the Win32 MSVC package here: http://curl.haxx.se/download.html#Win32 For these instructions sake, let's say you downloaded to C:\LibCurl

  2. Start a new project in Visual Studio. Go to Project|Project Properties|VC++ Directories|Include Directories| Add the path to the include directory inside the downloaded package. (C:\LibCurl\include)

  3. Next, go to Project|Project Properties|Linker|General|Additional Library Directories| Add the path to the lib directory. (Where curllib.dll is located)

  4. Then, go to Project|Project Properties|Linker|Input|Additional Dependencies| And add curllib.lib

  5. Now if you compile a test program, you will likely get the message saying libsasl.dll is missing. You will need to download this file and put it in the same directory as your build. I used 7-Zip to extract libsasl.dll from OpenLDAP for Windows. OpenLDAP for Windows

This is the result of my test code from above: enter image description here

like image 403
Quaxton Hale Avatar asked Nov 24 '13 04:11

Quaxton Hale


People also ask

How do I add Libcurl to Visual Studio?

Go to lib directory and double click on “curllib. dsw” which is the Visual Studio Project file for curlib. It will start the Visual Studio with correct configuration and settings.


2 Answers

A lot of these instructions are out of date because they recommend the win32-ssl-devel-msvc package for curl, which no longer exists.

The following instructions allow you to build libcurl using only:

  • Visual Studio 2013
  • curl generic source tarball (tested on curl 7.44.0).

A. Build libcurl static library

  1. Download the latest curl generic source from: http://curl.haxx.se/latest.cgi?curl=tar.gz
  2. Extract the source to a local directory (we'll be using C:\libcurl)
  3. Open a command prompt
  4. "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\vcvars32.bat" To initialize your VC environment variables (adjust your VS 2013 installation directory as needed)
  5. cd C:\libcurl\winbuild
  6. nmake /f Makefile.vc mode=static VC=12
  7. The build should appear in C:\libcurl\builds\libcurl-vc12-x86-release-static-ipv6-sspi-winssl

B. Link Against libcurl in Visual Studio

  1. In Visual Studio, right click your project in Solution Explorer, then click "Properties"
  2. Configuration Properties > C/C++ > General > Additional Include Directories: add C:\libcurl\builds\libcurl-vc12-x86-release-static-ipv6-sspi-winssl\include
  3. Configuration Properties > C/C++ > Preprocessor > Preprocessor Definitions: add CURL_STATICLIB
  4. Configuration Properties > Linker > General > Additional Library Directories: add C:\libcurl\builds\libcurl-vc12-x86-release-static-ipv6-sspi-winssl\lib
  5. Configuration Properties > Linker > Input > Additional Dependencies: add libcurl_a.lib

C. Call libcurl from Your Project

The following sample shows a call to libcurl:

#include "stdafx.h"  #include <curl/curl.h>  void main(int argc, char* argv[]) {     CURL *curl = curl_easy_init();     if (curl) printf("curl_easy_init() succeeded!\n");      else fprintf(stderr, "Error calling curl_easy_init().\n"); } 
like image 131
mtlynch Avatar answered Sep 20 '22 14:09

mtlynch


I would say that in a comment, but I am lacking in points. You don't have to copy any .dll into your program run catalog. Go to Project | Properties | Configuration Properties and in line Envrionment write: PATH=$(ExecutablePath)$(LocalDebuggerEnvironment).

From now on, all .dlls from any catalog you mention in Project|Project Properties|VC++ Directories|Binary should be usable without copying them.

The rest is exactly as you written.

like image 44
Michał Avatar answered Sep 18 '22 14:09

Michał