WARNING: You will need re2c 0.13.4 or later if you want to regenerate PHP parsers
2015-02-07 16:45
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主机环境：CentOS6.5
PHP5.6.1
在编译安装PHP时，提示告警信息：“configure: WARNING: You will need re2c 0.13.4 or later if you want to regenerate PHP parsers.”
提示re2c版本较低
这里它提示的是告警而非错误，但是为了验证它是否是致命的，所以必须了解re2c的作用
re2c的介绍：http://re2c.org/
re2c的下载：http://sourceforge.net/projects/re2c/files/re2c/
经确认，re2c可以提高性能，那就开始升级吧
方法1：(源代码安装)
下载最新的re2c版本，下载地址http://sourceforge.net/projects/re2c/files/re2c/0.13.7.5/re2c-0.13.7.5.tar.gz/download
# tar xf re2c-0.13.7.5.tar.gz
# cd re2c-0.13.7.5
# ./configure
#make && make install
再次编译安装，发现告警信息消失
方法2：yum安装
首先必须启用epel源
#yum -y install re2c
如果生产线上经常部署，你就把这个插件写入php环境检查吧
PHP5.6.1
在编译安装PHP时，提示告警信息：“configure: WARNING: You will need re2c 0.13.4 or later if you want to regenerate PHP parsers.”
提示re2c版本较低
这里它提示的是告警而非错误，但是为了验证它是否是致命的，所以必须了解re2c的作用
re2c的介绍：http://re2c.org/
re2c的下载：http://sourceforge.net/projects/re2c/files/re2c/
经确认，re2c可以提高性能，那就开始升级吧
方法1：(源代码安装)
下载最新的re2c版本，下载地址http://sourceforge.net/projects/re2c/files/re2c/0.13.7.5/re2c-0.13.7.5.tar.gz/download
# tar xf re2c-0.13.7.5.tar.gz
# cd re2c-0.13.7.5
# ./configure
#make && make install
再次编译安装，发现告警信息消失
方法2：yum安装
首先必须启用epel源
#yum -y install re2c
如果生产线上经常部署，你就把这个插件写入php环境检查吧
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