我正在安装 libwebsocket 它给了我错误：---
http://git.warmcat.com/cgi-bin/cgit/libwebsockets/snapshot/libwebsockets-1.0-chrome25-firefox17.tar.gz
/pi/libwebsockets-1.0-chrome25-firefox17$ ./autogen.sh
Preparing the libwebsockets build system...please wait
Found GNU Autoconf version 2.69
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "en_US:",
LC_ALL = (unset),
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = "en_US:",
LC_ALL = (unset),
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
Found GNU Automake version 1.13
Found GNU Libtool version 1.5.26
Automatically preparing build ... Warning: autoreconf failed
Attempting to run the preparation steps individually
Preparing build ... ERROR: aclocal failed
目前当我运行 libtool --version:---
/home/pi$ libtool --version
ltmain.sh (GNU libtool) 1.5.26 (1.1220.2.492 2008/01/30 06:40:56)
Copyright (C) 2008 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
如果我运行 whereis 命令，我会得到以下输出：----
/pi/libtool-2.4.2$ whereis libtool
libtool:
我必须安装 libtool 版本 2.4.2，以摆脱上述错误。
现在我已经为 libtool 安装了 2.4.2 版本：---
ftp://ftp.gnu.org/gnu/libtool/libtool-2.4.2.tar.gz
安装 2.4.2 版本的 libtool 后，如果我运行 whereis 命令，我会得到以下输出：----
/pi/libtool-2.4.2$ whereis libtool
libtool: /usr/local/bin/libtool
但是如果我运行 libtool --version:---
/home/pi$ libtool --version
ltmain.sh (GNU libtool) 1.5.26 (1.1220.2.492 2008/01/30 06:40:56)
为什么 libtool --version 命令没有显示最新安装的 libtool 2.4.2 版本？
当我运行 ./autogen.sh 时，我也遇到了同样的 libwebsocket 错误。