Fallo al compilar Qt 4

Este es el fallo que me da:

./configure: line 53: [: /sources2/qt: binary operator expected
./configure: line 59: [: /sources2/qt: binary operator expected
grep: /sources2/qt: No such file or directory
grep: 4/qt-x11-opensource-src-4.1.0/src/corelib/global/qglobal.h: No such file or directory
Cannot process version from qglobal.h:
Cannot proceed.

Espero poder solucionarlo pronto, si teneis alguna sugerencia para compilarlo, por favor, indicamela.