Please Look at your directory
this errors can(but don't have to) be created by a space character,
I know this errors from WinAvr
"undefined reference to `_lseek_r'"
try to compile the files in a directory free of space characters

-It's a German Linux or not?!
Same in German:

Beim Winavr können(müssen aber nicht) solche Fehler aufgrund von 
Leerzeichen im Pfad auftreten, alles einmal in ein Leerzeichen freis s 
Verzeichnis installieren und kopieren und compilen- hat damals beim 
WinAVR(auch gcc) geholfen

mfg

The error file shows calls to functions that are not provided by a 
newlib.
You will need a source file normaly called syscalls.c. This is because a 
newlib is not hardware dependent. The hardware dependent functions have 
to be defined in syscalls.c.

In german:

Der Fehlerlog zeigt Aufrufe von Funktionen, die von der newlib nicht zur 
Verfügung gestellt werden. Dafür benötigt man eine Datei, die 
üblicherweise syscalls.c heißt. Das liegt daran, dass eine newlib nicht 
hardwareabhängig ist. Die hardwareabhängigen Funktionen müssen in 
syscalls.c definiert werden.

http://svn.openpcd.org/trunk/firmware/src/os/syscalls.c

Grüße,

Peter

Marc wrote:
> I've got the same problem like the person in this thread:
> Beitrag "WinARM "sprintf" Linkerfehler"
>
> But there is no printf or sprintf in my program

That does not sound like the same problem at all. Don't hijack other 
peoples threads with your own problems. Start your own thread and post 
the build log.

Marc wrote:
> No one can help me? :(


After a mere eight hours, you posted that!  There are 24 hours in a day, 
and not everyone is in your time-zone! And those that are might also 
have to work for a living, and have a life besides this forum. Patience.


> But where to place it?

It does not matter. You just need to implement it, compile it and link 
the object file with your code.

WinARM includes examples for a number of target micro-controllers and 
boards. You should be able to adapt one of those for your target.