Samba4, latest build fails: wrong int and long int casts

[steve]

Ubuntu 12.04

[2493/4244] Compiling source4/heimdal/lib/com_err/error.c
../source4/heimdal/lib/com_err/error.c: In function ‘com_right_r’:
../source4/heimdal/lib/com_err/error.c:68:6: error: format ‘%d’ expects 
argument of type ‘int’, but argument 4 has type ‘long int’ [-Werror=format]
../source4/heimdal/lib/com_err/error.c:68:6: error: format ‘%d’ expects 
argument of type ‘int’, but argument 4 has type ‘long int’ [-Werror=format]
cc1: some warnings being treated as errors
Waf: Leaving directory `/home/steve/samba-master/bin'
Build failed: -> task failed (err #1):
{task: cc error.c -> error_128.o}
make: *** [install] Error 1

Cheers,
Steve