this is the good solution : its works with me

download qt4 sources !
1) Create a symlink to the firebird library
$ cd /usr/lib
$ sudo ln -s libfbclient.so.1.5.4 libgds.so

2) Configure Qt
$ ./configure -plugin-sql-mysql -plugin-sql-ibase -I/usr/include/mysql

3) Compile Qt
$ make

4) Install Qt
$ sudo make install