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Ä¿Ç°£¬Linux ͨÓõÄ×ö·¨Êǽ«·Ç±ê׼·¾­¼ÓÈë /etc/ld.so.conf£¬È»ºóÔËÐÐ ldconfig Éú³É /etc/ld.so.cache¡£ ld.so ¼ÓÔع²Ïí¿âµÄʱºò£¬»á´Ó ld.so.cache ²éÕÒ¡£
´« ͳÉÏ£¬ Linux µÄÏȱ² Unix »¹ÓÐÒ»¸ö»·¾³±äÁ¿ - LD_LIBRARY_PATH À´´¦Àí·Ç±ê׼·¾­µÄ¹²Ïí¿â¡£ld.so ¼ÓÔع²Ïí¿âµÄʱºò£¬Ò²»á²éÕÒÕâ¸ö±äÁ¿ËùÉèÖõÄ·¾­¡£µ«ÊÇ£¬Óв»ÉÙÉùÒôÖ÷ÕÅÒª±ÜÃâʹÓà LD_LIBRARY_PATH ±äÁ¿£¬ÓÈÆäÊÇ×÷Ϊȫ¾Ö±äÁ¿¡£ÕâЩÉùÒôÊÇ£º
* LD_LIBRARY_PATH is not the answer - http://prefetch.net/articles/linkers.badldlibrary.html
* Why LD_LIBRARY_PATH is bad - http://xahlee.org/UnixResource_dir/_/ldpath.html
* LD_LIBRARY_PATH - just say no - http://blogs.sun.com/rie/date/20040710
½â¾öÕâÒ»ÎÊÌâµÄÁíÒ»·½·¨ÊÇÔÚ±àÒëµÄʱºòͨ¹ý -R<path> Ñ¡ÏîÖ¸¶¨ run-time path¡£
1. Íù/libºÍ/usr/libÀïÃæ¼Ó¶«Î÷£¬ÊDz»ÓÃÐÞ¸Ä/etc/ld.so.confµÄ£¬µ«ÊÇÍêÁËÖ®ºóÒªµ÷Ò»ÏÂldconfig£¬²»È»Õâ¸ölibrary»áÕÒ²»µ½
2. ÏëÍùÉÏÃæÁ½¸öĿ¼ÒÔÍâ¼Ó¶«Î÷µÄʱºò£¬Ò»¶¨ÒªÐÞ¸Ä/etc/ld.so.conf£¬È»ºóÔÙµ÷ÓÃldconfig£¬²»È»Ò²»áÕÒ²»µ½
±ÈÈç°²×°ÁËÒ»¸ömysqlµ½/usr/local/mysql£¬mysqlÓÐÒ»´ó¶ÑlibraryÔÚ/usr/local/mysql/libÏÂÃ棬Õâʱ¾ÍÐèÒªÔÚ/etc/ld.so.confÏÂÃæ¼ÓÒ»ÐÐ/usr/local/mysql/lib£¬±£´æ¹ýºóldconfigһϣ¬ÐµÄlibrary²ÅÄÜÔÚ³ÌÐòÔËÐÐʱ±»ÕÒµ½¡£
3. Èç¹ûÏëÔÚÕâÁ½¸öĿ¼ÒÔÍâ·Ålib£¬µ«ÊÇÓÖ²»ÏëÔÚ/etc/ld.so.confÖмӶ«Î÷£¨»òÕßÊÇûÓÐȨÏÞ¼Ó¶«Î÷£©¡£ÄÇÒ²¿ÉÒÔ£¬¾ÍÊÇexportÒ»¸öÈ«¾Ö±äÁ¿LD_LIBRARY_PATH£¬È»ºóÔËÐгÌÐòµÄʱºò¾Í»áÈ¥Õâ¸öĿ¼ÖÐÕÒlibrary¡£Ò»°ãÀ´½²ÕâÖ»ÊÇÒ»ÖÖÁÙʱµÄ½â¾ö·½°¸£¬ÔÚûÓÐȨÏÞ»òÁÙʱÐèÒªµÄʱºòʹÓá£
4. ldconfig×öµÄÕâЩ¶«Î÷¶¼ÓëÔËÐгÌÐòʱÓйأ¬¸ú±àÒëʱһµã¹Øϵ¶¼Ã»ÓС£±àÒëµÄʱºò»¹ÊǸüÓ-L¾ÍµÃ¼Ó£¬²»Òª»ìÏýÁË¡£
5. ×ÜÖ®£¬¾ÍÊDz»¹Ü×öÁËʲô¹ØÓÚlibraryµÄ±ä¶¯ºó£¬×îºÃ¶¼ldconfigһϣ¬²»È»»á³öÏÖһЩÒâÏë²»µ½µÄ½á¹û¡£²»»á»¨Ì«¶àµÄʱ¼ä£¬µ«ÊÇ»áÊ¡ºÜ¶àµÄÊ¡£
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