Apache安装问题：configure: error: APR not found . Please read the documentation

Linux上安装Apache时，编译出现错误： 

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

安装APR，下载所需软件包，如果此时计算机可以上网，执行命令下载文件：

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

apr not found问题

tar -zxf apr-1.4.5.tar.gz
cd  apr-1.4.5
./configure --prefix=/usr/local/apr
make && make install

APR-util not found问题

tar -zxf apr-util-1.3.12.tar.gz
cd apr-util-1.3.12
./configure --prefix=/usr/local/apr-util -with-apr=/usr/local/apr/bin/apr-1-config
make && make install

pcre问题

unzip -o pcre-8.10.zip
cd pcre-8.10
./configure --prefix=/usr/local/pcre
make && make install

最后编译Apache时加上：

--with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util/ --with-pcre=/usr/local/pcre

 
例如：

./configure --prefix=/usr/local/apache2 --enable-so --with-apr=/usr/local/apr --with-apr-util=/usr/local/apr-util/ --with-pcre=/usr/local/pcre

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