Using Qt to get 64 bit programs

[ranger0]

Hi,

After a week of hard work I found out how to compile Qt 4.8.4 in order to use minGW-64 as toolchain.

To achieve that I ran configure -fast -qt-style-windowsxp -no-xmlpatterns -no-webkit -plugin-sql-mysql

I could successfuly compile my app, but when it tries to connect to mysql databank (db.open()), my app crashes.

Debuger points to file qsql_mysql.cpp line 1276:

@
if ((d->mysql = mysql_init((MYSQL*) 0)) &&
mysql_real_connect(d->mysql,
host.isNull() ? static_cast<const char *>(0)
: host.toLocal8Bit().constData(),
user.isNull() ? static_cast<const char *>(0)
: user.toLocal8Bit().constData(),
password.isNull() ? static_cast<const char *>(0)
: password.toLocal8Bit().constData(),
db.isNull() ? static_cast<const char *>(0)
: db.toLocal8Bit().constData(),
(port > -1) ? port : 0,
unixSocket.isNull() ? static_cast<const char *>(0)
: unixSocket.toLocal8Bit().constData(),
optionFlags))
@

Is there any thing I could do to fix this? Is this a bug related to 64bits compilation on windows? Does anyone could use qt and mingw-w64 to an application like mine ? How?

Thanks.

[Peter K]

What are the errors that are generated upon crashing?

[ranger0]

Hi Peter,

At debugger I just could see a segmentation fault warning.

Thanks.