帮助信息./configure -help|grep mysql出错提示安装libxml2 tar -zxvf libxml2xxxx.tarcd libxml2xxx./configure make && make install------------------安装 gd库yum install gd------------------------------后缀为rpm安装的  rpm -ivh libxml2-devel-2.6.26-2.1.2.8.i386.rpm    出错提示安装rpm-build：warning: libxml2-devel-2.6.26-2.1.2.8.i386.rpm: Header V3 DSA/SHA1 Signature, key ID 37017186: NOKEYerror: Failed dependencies:    libxml2 = 2.6.26 is needed by libxml2-devel-2.6.26-2.1.2.8.i386安装rpm-build：yum -y install rpm-build-------------------------------------vim  编辑的时候出现这样的错误linux   ‘readonly‘ option is set (add ! to override)出现的错误：原因是没有保存的权限。解决办法：wq!--------------------------linux vim  跳到最后一行直接  G