报错：cmake: /usr/local/lib/libcurl.so.4: no version information available (required by cmake)

报错：cmake: /usr/local/lib/libcurl.so.4: no version information available (required by cmake)

wangshuai@wangshuai-TUFx470:~$ cmake
cmake: /usr/local/lib/libcurl.so.4: no version information available (required by cmake)
Usage

cmake [options] <path-to-source>
cmake [options] <path-to-existing-build>

Specify a source directory to (re-)generate a build system for it in the
current working directory. Specify an existing build directory to
re-generate its build system.

Run ‘cmake --help’ for more information.

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刚刚装了cmake，出错之后，检索到这位大神CHENJIAN在stackoverflow里给出了完美的解决方式。
下面给出我的解决过程：

wangshuai@wangshuai-TUFx470:~$ locate libcurl.so.4
/home/wangshuai/Downloads/zju/curl-7.47.0/lib/.libs/libcurl.so.4
/home/wangshuai/Downloads/zju/curl-7.47.0/lib/.libs/libcurl.so.4.4.0
/usr/lib/x86_64-linux-gnu/libcurl.so.4
/usr/lib/x86_64-linux-gnu/libcurl.so.4.4.0
/usr/local/lib/libcurl.so.4
/usr/local/lib/libcurl.so.4.4.0
wangshuai@wangshuai-TUFx470:~$ ll /usr/local/lib/libcurl.so.4
lrwxrwxrwx 1 root root 16 10月 14 17:40 /usr/local/lib/libcurl.so.4 -> libcurl.so.4.4.0*
wangshuai@wangshuai-TUFx470:~$ sudo rm -rf /usr/local/lib/libcurl.so.4
wangshuai@wangshuai-TUFx470:~$ sudo ln -s /usr/lib/x86_64-linux-gnu/libcurl.so.4.4.0 /usr/local/lib/libcurl.so.4 
wangshuai@wangshuai-TUFx470:~$ ll /usr/local/lib/libcurl.so.4
lrwxrwxrwx 1 root root 42 10月 20 21:10 /usr/local/lib/libcurl.so.4 -> /usr/lib/x86_64-linux-gnu/libcurl.so.4.4.0
wangshuai@wangshuai-TUFx470:~$ cmake 
Usage

cmake [options] <path-to-source>
cmake [options] <path-to-existing-build>
….

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原因在于最初的ubuntu环境里已经有了libcurl，如上文中的
/usr/lib/x86_64-linux-gnu/libcurl.so.4
/usr/lib/x86_64-linux-gnu/libcurl.so.4.4.0
而我自己因为安装了curl软件而安装了libcurl库，可能与原本的冲突了。