继续在ubuntu下配置PHP开发环境，做到安装Apache服务器了，执行configure的时候，报错，具体如下
configure: error: Bundled APR requested but not found at ./srclib/. Download and unpack the corresponding apr and apr-util packages to ./srclib/.
google以后，发现这是需要下载apr和apr-utils 并解压到./srclib/, 再进行编译。
解决办法：
1.1 在上面的链接或者网上下载 apr-1.4.6.tar.gz和apr-util-1.4.1.tar.gz，放到/usr/local/src/目录下，解压软件包到当前目录的apr-1.4.6/和apr-util-1.4.1/下，命令如下：
$ cd /usr/local/usr/ // 进入源码包所在目录
$ sudo tar zxvf apr-1.4.6.tar.gz // 解压缩
$ sudo tar zxvf apr-util-1.4.1.tar.gz // 解压缩
1.2 （现在我们依然在/usr/local/src/目录下）拷贝解压缩后的目录到httpd-2.4.4/srclib/apr和httpd-2.4.4/srclib/apr-util中，命令如下：
$ sudo cp -rf apr-1.4.6 httpd-2.4.4/srclib/apr
$ sudo cp -rf apr-util-1.4.1 httpd-2.4.4/srclib/apr-util
然后重新进入httpd目录，进行配置。
结果出现新的问题，如下：
configure: error: pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/
又是一个依赖关系，，，，晕死算了。没办法，继续下吧。去http://pcre.org/下载
2.1 在上面的链接或者网上下载 pcre-8.32.tar.gz，放到/usr/local/src/目录下，解压软件包到当前目录的pcre-8.32下，并进入pcre-8.32目录，命令如下：
$ cd /usr/local/usr/ // 进入源码包所在目录
$ sudo tar zxvf pcre-8.32.tar.gz // 解压缩
$ cd pcre-8.32 // 进入目录
2.2 使用“configure”命令检查并配置安装需要的系统环境，并生成安装配置文件，命令行如下：
$ ./configure –prefix=/usr/local/pcre
选项–prefix=/usr/local/pcre作用，是在安装时将软件安装到/usr/local/pcre目录下
2.3 使用make命令编译源码文件并生成安装文件，命令如下：
$ sudo make // 编译
2.4 使用make install命令进行安装，命令如下：
$ sudo make install // 安装
如果安装成功就会在/usr/local/pcre目录下生成bin、include、lib和share四个目录。如下图
安装完pcre以后，回到httpd目录下,
在./configure的时候加上–with-pcre=/usr/local/pcre即可。
这次终于成功configure了，然后make && make install。
大功告成！
————————————-华丽丽的分割线，下面是英语版——————————————–
English Version:
Continue to install the PHP environment.
An error occured when performing configure command during installing Apache server:
configure: error: Bundled APR requested but not found at ./srclib/. Download and unpack the corresponding apr and apr-util packages to ./srclib/.
Google it, I found that we need to download the apr and apr-utils , extract them to ./srclib/ and then compile.
Solution:
1.1 Download the file apr-1.4.6.tar.gz and apr-util-1.4.1.tar.gz on the above link or the official site, put them under /usr/local/src/, and extract them separately to apr-1.4.6/ and apr-util-1.4.1/. The commands as follows:
$ cd /usr/local/usr/ // enter the directory where the source code is
$ sudo tar zxvf apr-1.4.6.tar.gz // extract the file
$ sudo tar zxvf apr-util-1.4.1.tar.gz // extract the file
1.2 (remain under the /usr/local/src/)copy the extracted files above separately to directory httpd-2.4.4/srclib/apr/ and httpd-2.4.4/srclib/apr-util/, commands as follows:
$ sudo cp -rf apr-1.4.6 httpd-2.4.4/srclib/apr
$ sudo cp -rf apr-util-1.4.1 httpd-2.4.4/srclib/apr-util
enter the httpd directory to configure.
Another new problem arised:
configure: error: pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/
Another dependency?? oops… continue to download~~ go to the website http://pcre.org/.
2.1 Download the file pcre-8.32.tar.gz on the above link or the official site, put it under /usr/local/src/, and extract it to pcre-8.32/, and enter the current directory. The commands as follows:
$ cd /usr/local/usr/ // enter the directory where the source code is
$ sudo tar zxvf pcre-8.32.tar.gz // extract the file
$ cd pcre-8.32/ // enter the current directory
2.2 Check and configure the installation environment with “configure” command, which will generate installation configuration file. The command line as follows:
$ ./configure –prefix=/usr/local/pcre
“–prefix=/usr/local/pcre” means that the installing software will be installed under /usr/local/pcre.
2.3 use the make command to compile the source file and generate the installation file:
$sudo make // compile
2.4 use command make install to install:
$ sudi make install // install
If the installation succeeded, there would be four directories(bin/, include/, lib/, share/)generated under /usr/local/pcre, as following picture:
after installing the pcre, return to the httpd directory, and add the option –with-pcre=/usr/local/pcre behind ./configure.
It succeeded~~, and then perform make and make install.
Done!