本人在阅读Linux源代码过程中发现如果要全面了解Linux的结构、理解Linux的编程总体设计及思想必须首先全部读通Linux源代码中各级的Makefile文件。目前，在网上虽然有一些著作，但都不能全面的解释Linux源代码中各级的Makefile文件，因此本人认真阅读了GNU Make 使用手册（3.79）版原文，在此基础上翻译了该手册，以满足对Linux源代码有兴趣或者希望采用GCC编写程序但对缺乏GNU Make全面了解之人士的需要。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.012168s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.106082s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001145s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001211s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001031s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004179s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000955s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003748s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.023424s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001534s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 468979 [ RunTime:0.011789s ]
