blocks|key|3172921|text|只要在互联网上搜索卷发！它是一个用URL语法传输数据的库。您可以从它的下载页面下载二进制文件，也可以下载源代码并在本地编译它。如果使用NuGet，则可以获取他们的包裹。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3172922|如果已安装，请删除CMakeCache.txt文件并重新运行CMake。如果您不想安装它，请将-DCURL_LIBRARY=<curl_lib_path>+-DCURL_INCLUDE_DIR=<curl_include_path传递给您的CMake调用。|style|CODE|3172923|entityMap|0|LINK|mutability|MUTABLE|url|http://curl.haxx.se/download.html|1|https://www.nuget.org/packages/curl/^0|Z|4|0|26|5|1|0|1B|1W|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]|$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@$A|Z|B|10|F|G]]|9|@]|C|$]]|$1|H|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]]]

Just search the internet for curl! It's a library to transfer data with an URL syntax. You can download binaries from it's <a href="http://curl.haxx.se/download.html" rel="noreferrer">download page</a> or download the source code and compile it locally. If you use NuGet, you can grab <a href="https://www.nuget.org/packages/curl/" rel="noreferrer">their package</a> instead.

If it is installed, delete your CMakeCache.txt file and re-run CMake. If you don't want to install it, pass <code>-DCURL_LIBRARY=&lt;curl_lib_path&gt; -DCURL_INCLUDE_DIR=&lt;curl_include_path</code> to your CMake call.

blocks|key|2014576|text|尝试使用dev库安装curl：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2014577|sudo+apt+update+&&+sudo+apt+upgrade+&&+sudo+apt+install+curl+&&+sudo+apt-get+install+libcurl4-openssl-dev|offset|length|style|CODE|2014578|entityMap^0|0|0|2X|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

Try installing curl with the dev libraries:
<code>sudo apt update &amp;&amp; sudo apt upgrade &amp;&amp; sudo apt install curl &amp;&amp; sudo apt-get install libcurl4-openssl-dev</code>

blocks|key|3172956|text|我的问题已经解决了，(将libssl-dev附加到@Josh应答)|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3172957|sudo+apt-get+install+curl
sudo+apt-get+install+libssl-dev+libcurl4-openssl-dev|code-block|syntax|javascript|3172958|卷发在上面，但没有找到卷发|3172959|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/56941778/cmake-use-system-curl-is-on-but-a-curl-is-not-found^0|C|A|0|0|0|D|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|M|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

My issue was fixed by,(installed <code>libssl-dev</code> addtionally to @Josh answer)
<pre><code>sudo apt-get install curl
sudo apt-get install libssl-dev libcurl4-openssl-dev
</code></pre>
<a href="https://stackoverflow.com/questions/56941778/cmake-use-system-curl-is-on-but-a-curl-is-not-found">CMAKE_USE_SYSTEM_CURL is ON but a curl is not found</a>

blocks|key|2014633|text|如果您正在使用Ubuntu：sudo+sudo+apt安装libcurl4+4-openssl-dev|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2014634|如果您正在使用Centos：sudo+yum安装libcurl-devel|2014635|entityMap^0|E|11|0|E|N|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

If you are using Ubuntu:
sudo apt-get install libcurl4-openssl-dev
If you are using Centos:
sudo yum install libcurl-devel

blocks|key|2014658|text|在fedora中，安装libcurl-devel。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2014659|sudo+dnf+install+libcurl-devel|offset|length|style|CODE|2014660|entityMap^0|0|0|U|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

In fedora, install libcurl-devel
<code>sudo dnf install libcurl-devel</code>

I'm trying to use api.ai C++ library on Windows 7.
(<a href="https://github.com/api-ai/libapiai" rel="noreferrer">https://github.com/api-ai/libapiai</a>)
But i can not configuring that files..

I installed CMake and MinGW.

in build directory 
-> cmake .. -G "MinGW Makefiles" 
-> Error !!

===>>> error is below &lt;&lt;&lt;

<pre><code>CMake Error at C:/Program Files (x86)/CMake/share/cmake-3.4/Modules/FindPackageHandleStandardArgs.cmake:148 (message):
 Could NOT find CURL (missing: CURL_LIBRARY CURL_INCLUDE_DIR)
Call Stack (most recent call first):
 C:/Program Files (x86)/CMake/share/cmake-3.4/Modules/FindPackageHandleStandardArgs.cmake:388 (_FPHSA_FAILURE_MESSAGE)
 C:/Program Files (x86)/CMake/share/cmake-3.4/Modules/FindCURL.cmake:61 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
 CMakeLists.txt:45 (find_package)
</code></pre>

I don't know how can I solve.
what is curl_library? 
I can use that on Windows 7? not linux/unix etc..

Could NOT find CURL (missing: CURL_LIBRARY CURL_INCLUDE_DIR) on CMake

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我试图在Windows7上使用api.ai C++库。()但是我不能配置该文件。我安装了CMake和MinGW。在构建目录-> cmake ..。-G "MinGW Makefiles“->错误!！===>>>错误低于<<<CMake Error at C:/Program Files (x86)/CMake/shar...

问找不到卷发(缺失: CURL_LIBRARY CURL_INCLUDE_DIR)在CMake上
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问找不到卷发(缺失: CURL_LIBRARY CURL_INCLUDE_DIR)在CMake上EN