操作：
cd {mysql}/lib/opt
reimp libmysql.lib
dlltool.exe -d {mysql++}/libmysqlclient.def -e mysqlclient.exp -l mysqlclient.a -S as
备注：
mingw-utils-0.3.tar.gz
binutils-2.17.50-20060824-1.tar.gz
//reimp mysqlclient.lib
//ar rcs libmysqlclient.a *.obj
//rm *.obj