problems to compile busybox 1.10.4

[Reinhard Thies]

Hi,
I am cross compiling busybox using eldk 4.1 (ARCH=ppc CROSS_COMPILE=ppc_4xx- ) 
and got the following error:

  CC      libbb/bb_qsort.o
  CC      libbb/bb_strtonum.o
libbb/bb_strtonum.c: In function 'ret_ERANGE':
libbb/bb_strtonum.c:26: error: 'ULLONG_MAX' undeclared (first use in this 
function)
libbb/bb_strtonum.c:26: error: (Each undeclared identifier is reported only 
once
libbb/bb_strtonum.c:26: error: for each function it appears in.)
make[1]: *** [libbb/bb_strtonum.o] Error 1
make: *** [libbb] Error 2

Where is ULLONG_MAX defined ?
I wasn't able to find it.

Thx,
Reinhard