build error with debian squeeze

Hi!

I am trying to build the toolchain according to the manual "How-to-build-toolchain.pdf". However I am running debian squeeze with native gcc (Debian 4.4.5-8) 4.4.5. The build crashes with the errors below. Does anyone know how to fix this?

Thanks,
Franz

/host-libs/zlib/lib -L/home/user/Desktop/gcc_embedded/gcc-arm-none-eabi-4_7-2013q1-20130313/build-native/host-libs/usr/lib -o sysinfo sysinfo.o syslex.o
syslex.o: In function `main':
syslex.c:(.text+0x0): multiple definition of `main'
sysinfo.o:sysinfo.c:(.text+0x0): first defined here
collect2: ld returned 1 exit status
make[2]: *** [sysinfo] Error 1
make[2]: Leaving directory `/home/user/Desktop/gcc_embedded/gcc-arm-none-eabi-4_7-2013q1-20130313/build-native/binutils/binutils'
make[1]: *** [all-binutils] Error 2
make[1]: *** Waiting for unfinished jobs....