You need to get the MySQL installation files. Run SETUP.EXE and choose "Custom Install". Install the "Libs & Include Files" Module. Build the plugin as follows (here it is assumed that MySQL is installed in C:\MYSQL):
cd %QTDIR%\src\plugins\sqldrivers\mysql
qmake -o Makefile "INCLUDEPATH+=C:\MYSQL\INCLUDE" "LIBS+=C:\MYSQL\LIB\OPT\LIBMYSQL.LIB" mysql.pro
nmake
If you are not using a Microsoft compiler, replace nmake with make in the line above.
转：eclipse+mingw+qt编译MySQL驱动的步骤
ccnufufan
posted @ 2011年3月11日 15:58
in Qt
, 1627 阅读
mingw-utils包下载：http://www.qtcn.org/download/mingw-utils-0.3.tar.gz
在Qt4的文档中在Windows下关于怎样编译mysql的驱动上面说
引用
这 就是一个容易搞混的地方，上面是使用的libmysql.lib和nmake来编译的，如果使用的是msvc的编译器，那上面是没问题的，但是如果使用的 是mingw编译器，那就会出错，有undefined reference....等类错误字样。这是因为mingw使用的库和msvc使用的不同格式的库而引起的。而mysql只提供了msvc可使用的库。 qt4 for mingw要想编译出qsqlmysql库来，我们先得编译出mingw需要的libmysql.a这个文件来，可使用mingw工具来生成。
mingw- utils包里的reimp命令（如果没有这个命令的话，可从本帖开头处给出的地址中下载这个文件，并把它解压开后的bin目录里的内容拷贝到mingw 的bin目录下面。mysql安装的时候默认的安装路径中有空格，我们得先把它的include和lib目录拷贝到没有空格的路径下，比如 C:\mysql下）
引用cd c:\mysql\lib\opt
reimp -d libmysql.lib
dlltool -k -d libmysql.def -l libmysql.a
如此，这样我们的命令行为（注意qmake和make）：
引用
cd %QTDIR%\src\plugins\sqldrivers\mysql
qmake -o Makefile "INCLUDEPATH+=C:\MYSQL\INCLUDE" "LIBS+=C:\MYSQL\LIB\OPT\libmysql.a" mysql.pro
make
这下便会在%QTDIR%\plugins\sqldrivers目录下面生成libqsqlmysql.a, qsqlmysql.dll这两个文件了。
注：按照上述步骤进行编译的话，最后在make时还是出现了错误，后来使用了 set lib= 和 set include= 两个命令，但是具体不知道是不是这两个命令的作用，再运行make编译时成功生成了
libqsqlmysql4.a、libqsqlmysqld4.a、qsqlmysql4.dll、qsqlmysqld4.dll。
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