我在使用mingw编译mysql连接器C ++时出现问题，正如官方网站上发布的那样，你应该运行cmake配置源代码，然后运行mingw32-make ... cmake需要安装boost库，所以我得到它并编译它（它说许多更新，40个目标被跳过并且未能更新24）。
之后尝试在mysql连接器源上运行cmake，它输出没有错误并且工作正常，当尝试执行mingw32-make的最后一步时，它会产生很多错误，其中很多都是重新定义...日志在下面。请帮帮我，我真的需要它。
C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\bin>mingw32-make
[ 0%] Building CXX object driver/CMakeFiles/mysqlcppconn.dir/mysql_art_resultset.cpp.obj
C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:1:0: warning: -fPIC
ignored for target (all code is position independent) [enabled by default]
In file included from C:/MySQL/MySQL_Server_5.6/include/my_global.h:72:0,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\nativeapi/mysql_private_iface.h:57,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_util.h:30,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:31:
C:/MySQL/MySQL_Server_5.6/include/my_config.h:509:0: warning: "isnan" redefined [enabled by default]
In file included from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:28:0:
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/include/math.h:480:0: note: this is the location of the previous definition
In file included from C:/MySQL/MySQL_Server_5.6/include/my_global.h:72:0,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\nativeapi/mysql_private_iface.h:57,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_util.h:30,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:31:
C:/MySQL/MySQL_Server_5.6/include/my_config.h:517:0: warning: "strtok_r" redefined [enabled by default]
In file included from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/i686-w64-mingw32/bits/gthr-default.h:41:0,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/i686-w64-mingw32/bits/gthr.h:150,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/ext/atomicity.h:34,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/bits/ios_base.h:41,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/ios:43,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/istream:40,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/sstream:39,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:27:
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/include/pthread.h:460:0: note: this is the location of the previous definition
In file included from C:/MySQL/MySQL_Server_5.6/include/my_global.h:72:0,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\nativeapi/mysql_private_iface.h:57,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_util.h:30,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:31:
C:/MySQL/MySQL_Server_5.6/include/my_config.h:527:0: warning: "NOMINMAX" redefined [enabled by default]
In file included from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/i686-w64-mingw32/bits/c++config.h:414:0,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/iosfwd:40,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/ios:39,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/istream:40,
from c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/sstream:39,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:27:
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/i686-w64-mingw32/bits/os_defines.h:46:0: note: this is the location of the previous definition
In file included from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_util.h:30:0,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:31:
C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\nativeapi/mysql_private_iface.h:81:0: warning: ignoring #pragma warning [-Wunknown-pragmas]
In file included from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.c
pp:36:0:
C:/Users/Hugo/Downloads/mysql-connector-c++-1.1.2/cppconn/exception.h:48:0: warning: ignoring #pragma warning [-Wunknown-pragmas]
C:/Users/Hugo/Downloads/mysql-connector-c++-1.1.2/cppconn/exception.h:52:0: warning: ignoring #pragma warning [-Wunknown-pragmas]
C:/Users/Hugo/Downloads/mysql-connector-c++-1.1.2/cppconn/exception.h:53:0: warning: ignoring #pragma warning [-Wunknown-pragmas]
C:/Users/Hugo/Downloads/mysql-connector-c++-1.1.2/cppconn/exception.h:58:0: warning: ignoring #pragma warning [-Wunknown-pragmas]
C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:162:1: error: invalid suffix "ui64" on integer constant
C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:162:1: error: invalid suffix "ui64" on integer constant
In file included from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\nativeapi/mysql_private_iface.h:57:0,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_util.h:30,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:31:
C:/MySQL/MySQL_Server_5.6/include/my_global.h: In function 'double rint(double)':
C:/MySQL/MySQL_Server_5.6/include/my_global.h:1160:35: error: 'double rint(double)' was declared 'extern' and later 'static' [-fpermissive]
In file included from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:28:0:
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/../../../../i686-w64-mingw32/include/math.h:783:23: error: previous declaration of 'double rint(double)' [-fpermissive]
In file included from D:/boost_1_53_0/boost/assert.hpp:81:0,
from D:/boost_1_53_0/boost/smart_ptr/shared_ptr.hpp:29,
from D:/boost_1_53_0/boost/shared_ptr.hpp:17,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_util.h:33,
from C:\Users\Hugo\Downloads\mysql-connector-c++-1.1.2\driver\mysql_art_resultset.cpp:31:
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/cstdlib: At global scope:
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/cstdlib:196:11: error: '::strtoll' has not been declared
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/cstdlib:197:11: error: '::strtoull' has not been declared
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/cstdlib:219:22: error: '__gnu_cxx::strtoll' has not been declared
c:\qt\qt5.0.1\tools\mingw\bin\../lib/gcc/i686-w64-mingw32/4.7.2/include/c++/cstdlib:220:22: error: '__gnu_cxx::strtoull' has not been declared
driver\CMakeFiles\mysqlcppconn.dir\build.make:57: recipe for target 'driver/CMakeFiles/mysqlcppconn.dir/mysql_art_resultset.cpp.obj' failed
mingw32-make[2]: *** [driver/CMakeFiles/mysqlcppconn.dir/mysql_art_resultset.cpp.obj] Error 1
CMakeFiles\Makefile2:94: recipe for target 'driver/CMakeFiles/mysqlcppconn.dir/all' failed
mingw32-make[1]: *** [driver/CMakeFiles/mysqlcppconn.dir/all] Error 2
makefile:135: recipe for target 'all' failed
mingw32-make: *** [all] Error 2
答案 0 :(得分：0)
遗憾的是，mysql连接器c ++源代码很垃圾。
它重新定义了标准库中定义的函数，然后包含标准库，或者依赖于每个实现中未包含的非标准函数。
由于标准库不检查其功能和结构是否已经定义，因此最终会出现多个定义错误。
此外，由于mysql连接器尚未移植到mingw，因此问题变得更糟。要在Windows上编译，您需要使用visual studio。
它变得更好。他们只支持visual studio 8和9。
如果您完全按照这些说明操作， http://dev.mysql.com/doc/connector-cpp/en/connector-cpp-installation-source-windows.html 然后你可以让它工作，但你不能偏离任何版本号。使用旧版本的cmake，一个旧版本的visual studio。他们没有测试过，也没有关心与任何现代版本的构建工具的兼容性。