Instalingl allinone patch for hobbit 4.2.0

Hello,
 
I have this problem for installing allinone patch :
 
[root at ftp-monitor hobbit]# cd /usr/lib/hobbit/
[root at ftp-monitor hobbit]# patch -p0 <allinone.patch
can't find file to patch at input line 4
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
|diff -urN /home/henrik/hobbit/release/hobbit-4.2.0/bbdisplay/bbgen.h ./bbdisplay/bbgen.h
|--- /home/henrik/hobbit/release/hobbit-4.2.0/bbdisplay/bbgen.h 2006-08-09 22:09:54.000000000 +0200
|+++ ./bbdisplay/bbgen.h        2006-10-03 13:52:28.720493437 +0200
File to patch:
 
Thank you for your assistance.
Bests regards,
Frédéric Dupeyroux.