linux下用C語言寫MySQL程序,用如下命令編譯時(shí)出錯(cuò):
[xitong@localhost mysql]$ gcc -o mysql mysql.c -lmysqlclient
錯(cuò)誤如下:
/usr/bin/ld: cannot find -lmysqlclient
collect2: ld 返回 1
解決方法:
用locate命令查找mysqlclient所在目錄,如下所示:
[xitong@localhost mysql]$ locate mysqlclient
結(jié)果顯示:
/usr/local/mysql/lib/mysql/libmysqlclient.a
/usr/local/mysql/lib/mysql/libmysqlclient.la
/usr/local/mysql/lib/mysql/libmysqlclient.so
/usr/local/mysql/lib/mysql/libmysqlclient.so.16
/usr/local/mysql/lib/mysql/libmysqlclient.so.16.0.0
/usr/local/mysql/lib/mysql/libmysqlclient_r.a
/usr/local/mysql/lib/mysql/libmysqlclient_r.la
/usr/local/mysql/lib/mysql/libmysqlclient_r.so
/usr/local/mysql/lib/mysql/libmysqlclient_r.so.16
/usr/local/mysql/lib/mysql/libmysqlclient_r.so.16.0.0
編譯時(shí)加入路徑/usr/local/mysql/lib/mysql载庭,如下:
[xitong@localhost mysql]$ gcc -o mysql mysql.c -L/usr/local/mysql/lib/mysql -lmysqlclient
[xitong@localhost mysql]$
編譯通過看彼,問題解決廊佩。
再加一點(diǎn),編譯問題解決了靖榕,運(yùn)行的時(shí)候發(fā)現(xiàn)出現(xiàn)如下錯(cuò)誤:
./mysql: error while loading shared libraries: libmysqlclient.so.16: cannot open shared object file: No such file or directory
借用一網(wǎng)友的解決方法标锄,添加環(huán)境變量:
[xitong@localhost mysql]$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/mysql/lib/mysql/
再次運(yùn)行編譯好的程序,OK