贴出我的编译命令来：

cd /soft

666 rm -rf php-5.6.30

667 cd /usr/local

668 rm -rf php

669 cd -

670 tar -zvxf php-5.6.30.tar.gz

671 cd php-5.6.30

672 ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-iconv-dir=/usr/local --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-discard-path --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-fastcgi --enable-fpm --enable-force-cgi-redirect --enable-mbstring --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --without-pear --with-zlib --enable-pdo --with-pdo-mysql=/usr/local/mysql --with-mysql-sock=/usr/local/mysql/mysql.sock

673 make && make install

//中间几行都是执行的find，没什么价值

679 export PATH=$PATH:/usr/local/php/bin

680 cp php.ini-development /usr/local/php/etc/php.ini

681 cp /usr/local/php/etc/php-fpm.conf.default /usr/local/php/etc/php-fpm.conf

682 cp sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm

683 chmod +x /etc/init.d/php-fpm

684 /usr/local/php/sbin/php-fpm -t

685 chkconfig --add php-fpm

686 chkconfig php-fpm on

687 service httpd restart

688 service php-fpm restart

689 killall php-fpm

690 service php-fpm start

上面就是用--with-pdo-mysql=/usr/local/mysql --with-mysql-sock=/usr/local/mysql/mysql.sock编译的全部命令，这样编译是不需要修改php.ini文件的，也不需要编译pdo_mysql。当然：都试过这样编译后再编译pdo_mysql和修改php.ini文件了。没卵用。