解决编译Apache出现的问题：configure: error: APR not found . Please read the documentation

 tar zvxf httpd-2.2.21.tar.gz 
 cd httpd-2.2.21
 ./configure --prefix=/usr/local/apache2 --enable-so --enable-rewrite 
---------------------------编译的时候出错-------------------------
解决办法如下：
-------------------------------------------------------------------
#./configure --prefix……检查编辑环境时出现：

checking for APR... no
configure: error: APR not found .  Please read the documentation

解决办法：

1.下载所需软件包：

wget http://archive.apache.org/dist/apr/apr-1.4.5.tar.gz  
wget http://archive.apache.org/dist/apr/apr-util-1.3.12.tar.gz  
wget http://jaist.dl.sourceforge.net/project/pcre/pcre/8.10/pcre-8.10.zip   
2.编译安装：

yum remove apr-util-devel apr apr-util-mysql apr-docs apr-devel apr-util apr-util-docs 
具体步骤如下:

  a:解决apr not found问题>>>>>>

[root@xt test]# tar -zxf apr-1.4.5.tar.gz  
[root@xt test]# cd  apr-1.4.5  
[root@xt apr-1.4.5]# ./configure --prefix=/usr/local/apr  
[root@xt apr-1.4.5]# make && make install  
 
  b:解决APR-util not found问题>>>>

[root@xt test]# tar -zxf apr-util-1.3.12.tar.gz  
[root@xt test]# cd apr-util-1.3.12  
[root@xt apr-util-1.3.12]# ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr/bin/apr-1-config  
[root@xt apr-util-1.3.12]# make && make install 

  c:解决pcre问题>>>>>>>>>

[root@xt test]#unzip -o pcre-8.10.zip  
[root@xt test]#cd pcre-8.10  
[root@xt pcre-8.10]#./configure --prefix=/usr/local/pcre  
[root@xt pcre-8.10]#make && make install 

--------------------------------------再次编译apache----------------------
./configure --prefix=/usr/local/apache2 --enable-so --enable-rewrite --with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util --with-pcre=/usr/local/pcre


 make

 make install