swoole编译安装过程遇到的问题

1. 出现“perl: warning: Falling back to the standard locale (“C”).”等提示错误，如下：

perl: warning: Setting locale failed.
　　　　　　perl: warning: Please check that your locale settings:
        　　　　　　LANGUAGE = "en_US.UTF-8",
        　　　　　　LC_ALL = "",
        　　　　　　LANG = "AMERICAN_AMERICA.UTF-8"
    　　　　are supported and installed on your system.
　　　　　 perl: warning: Falling back to the standard locale ("C").

解决办法：
在~/.bashrc文件中加入如下内容

export LANGUAGE="en_US.UTF-8"
export LANG=en_US:zh_CN.UTF-8
export LC_ALL=C

然后执行如下命令使其生效：

source /root/.bashrc

2. configure: error: C++ preprocessor “/lib/cpp” fails sanity check

configure: error: in `/wwwroot/swoole-4.2.5':
configure: error: C++ preprocessor "/lib/cpp" fails sanity check

问题的根源是缺少必要的C++库。运行如下命令解决：

yum install glibc-headers
yum install gcc-c++ 

3. “Enable http2 support, require nghttp2 library” 错误

/wwwroot/swoole-4.2.5/php_swoole.h:142:2: error: #error "Enable http2 support, require nghttp2 library."
 #error "Enable http2 support, require nghttp2 library."

需要安装nghttp2，首先安装依赖库

sudo yum -y groupinstall "Development Tools"
sudo yum -y install openssl-devel libxml2-devel libev-devel jemalloc-devel python-devel
wget https://c-ares.haxx.se/download/c-ares-1.12.0.tar.gz -O /tmp/c-ares.tar.gz
mkdir -p /tmp/c-ares
tar -zxvf /tmp/c-ares.tar.gz -C /tmp/c-ares --strip-components=1
cd /tmp/c-ares && ./configure --libdir=/usr/lib64
make
sudo make install
wget http://www.digip.org/jansson/releases/jansson-2.9.tar.gz -O /tmp/jansson.tar.gz
mkdir -p /tmp/jansson
tar -zxvf /tmp/jansson.tar.gz -C /tmp/jansson --strip-components=1
cd /tmp/jansson && ./configure --libdir=/usr/lib64
make
make check
sudo make install

安装nghttp2服务：

wget https://github.com/nghttp2/nghttp2/releases/download/v1.19.0/nghttp2-1.19.0.tar.gz -O /tmp/nghttp2.tar.gz
mkdir -p /tmp/nghttp2
tar -zxvf /tmp/nghttp2.tar.gz -C /tmp/nghttp2 --strip-components=1
cd /tmp/nghttp2 && ./configure --enable-app
make
sudo make install

4. hiredis 不存在

/wwwroot/swoole-4.2.5/swoole_redis.c:20:29: fatal error: hiredis/hiredis.h: No such file or directory
 #include 

需要安装redis和hiredis服务。
安装redis：

yum -y install tcl
wget http://download.redis.io/releases/redis-3.0.7.tar.gz
tar xzf redis-3.0.7.tar.gz 
cd redis-3.0.7
make
make test
make install

安装hiredis：

wget https://github.com/redis/hiredis/archive/v0.14.0.tar.gz
tar xzf  v0.14.0.tar.gz
cd hiredis-0.14.0/
make
make install