环境：CentOS 7、PHP 5.4.16
原本是编译PHP 7，遇到两个问题，之后用PHP 5.4.16进行了验证，这两个问题依然存在。
简化的编译命令是：
<code>./configure --prefix=/usr --enable-fpm --enable-mbstring=shared make && make install</code>
1.扩展文件目录：
请问，是否可以在编译过程中指定扩展文件的目录。
用yum安装PHP的时候，扩展目录是：
<code>/usr/lib64/php/modules</code>
而进行编译安装的时候，扩展目录是
<code>/usr/lib/php/extensions/no-debug-non-zts-20100525</code>
尝试用--extension-dir做编译参数，不被支持。
请问，是否进行编译安装的时候，无法控制扩展目录？
2.编译目录中的.a文件：
编译之后，进入扩展目录，可以发现，除了一般需要的.so文件之外，每个扩展还存在一个.a文件。
比如：
请问，这个.a文件是干什么用的？是否可以通过编译参数不生成这个文件？
另外：当完成PHP编译，单独编译扩展的时候则不会有.a文件。
回复内容：
环境：CentOS 7、PHP 5.4.16
原本是编译PHP 7，遇到两个问题，之后用PHP 5.4.16进行了验证，这两个问题依然存在。
简化的编译命令是：
<code>./configure --prefix=/usr --enable-fpm --enable-mbstring=shared make && make install</code>
1.扩展文件目录：
请问，是否可以在编译过程中指定扩展文件的目录。
用yum安装PHP的时候，扩展目录是：
<code>/usr/lib64/php/modules</code>
而进行编译安装的时候，扩展目录是
<code>/usr/lib/php/extensions/no-debug-non-zts-20100525</code>
尝试用--extension-dir做编译参数，不被支持。
请问，是否进行编译安装的时候，无法控制扩展目录？
2.编译目录中的.a文件：
编译之后，进入扩展目录，可以发现，除了一般需要的.so文件之外，每个扩展还存在一个.a文件。
比如：
请问，这个.a文件是干什么用的？是否可以通过编译参数不生成这个文件？
另外：当完成PHP编译，单独编译扩展的时候则不会有.a文件。
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