Added the fix from:
arnold_the_frog
https://sourceforge.net/tracker/index.php?func=detail&aid=1551207&group_id=5776&atid=105776
For the tracker item: [ 1551207 ] For builddir != srcdir
Authored by: waldviertler 2006-09-17
Parent: [r3122]
Child: [r3124]
