[PyQt] Problems with MySQL module

[Andreas Pakulat]

On 02.09.07 19:54:57, Gustavo A. Díaz wrote:
> Ok, first:

Thanks, that looks good.

> Second (i believe this is what you asked...):

Yes.

> Checking to see if the QtSql module should be built...
> g++ -DQT_NO_DEBUG -DQT_SQL_LIB -I. -I/usr/mkspecs/linux-g++
> -I/usr/include/qt4/QtSql -I/usr/include/qt4/QtGui -I/usr/include/qt4
> -I/usr/X11R6/include -pipe -O2 -w -D_REENTRANT cfgtest_QtSql.cpp -o
> cfgtest_QtSql -L/usr/lib -L/usr/X11R6/lib -Wl,-rpath,/usr/lib -lQtSql
> -L/usr/lib -L/usr/lib -lpq -L/usr/lib/mysql -lmysqlclient_r -lsqlite
> -lsqlite3 -lQtCore -L/usr/lib -lfontconfig -lz -lm -pthread -lgthread-2.0-lrt -
> lglib-2.0 -lpthread -ldl -lQtGui -L/usr/lib -L/usr/X11R6/lib -laudio -lXt
> -lpng -lSM -lICE -lQtCore -L/usr/lib -lz -pthread -lgthread-2.0 -lrt -
> lglib-2.0 -lpthread -lXi -lXrender -lXrandr -lXfixes -lXcursor -lXinerama
> -lfreetype -lfontconfig -lXext -lX11 -lm -ldl -lXext -lX11 -lm -lpthread
> /usr/bin/ld: cannot find -lsqlite3
> collect2: ld devolvió el estado de salida 1
> 
> Fro some reason now that changed, it shows -lsqlite3

Are you sure that changed, without you installing something extra (like
a mysqlclient-dev package)? Anyway, see below.

>, but i would not use sqlite module...
>  i just need mysql module. Still, does not enable mysql module for
> compile...

Well, that you don't want the sqlite support doesn't matter here.
Installing the sqlite-dev packages will make it link.

The question is why sqlite3, sqlite and mysqlclient show up in that
linker line at all. Usually a program linking to QtSql shouldn't need to
link against the depencies of QtSql explicitly, so I guess the configure
script does a bit "too much" here. Phil?

Another way to reduce the deps of your QtSql module would be by building
Qt4 yourself and disabling sqlite support completely.

Andreas

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