[erlang-questions] Problem building OTP on OpenBSD

[Jérôme Desquilbet]

I get the following error while building OTP R12B-4 on OpenBSD 4.3.
Any idea?
Thanks a lot,
   Jérôme.

=== Entering application os_mon
gmake[3]: Entering directory 
`/usr/tools/erlang/otp_src_R12B-4/lib/os_mon/src'
gmake[3]: Nothing to be done for `opt'.
gmake[3]: Leaving directory 
`/usr/tools/erlang/otp_src_R12B-4/lib/os_mon/src'
gmake[3]: Entering directory 
`/usr/tools/erlang/otp_src_R12B-4/lib/os_mon/c_src'

gmake -f i386-unknown-openbsd4.3/Makefile TYPE=opt
gmake[4]: Entering directory 
`/usr/tools/erlang/otp_src_R12B-4/lib/os_mon/c_src'

gcc -c -o ../priv/obj/i386-unknown-openbsd4.3/memsup.o -g -O2 
-I/usr/tools/erlan
g/otp_src_R12B-4/erts/i386-unknown-openbsd4.3    -DHAVE_CONFIG_H  memsup.c
memsup.c: In function `get_extended_mem':
memsup.c:456: error: void value not ignored as it ought to be
gmake[4]: *** [../priv/obj/i386-unknown-openbsd4.3/memsup.o] Error 1
gmake[4]: Leaving directory 
`/usr/tools/erlang/otp_src_R12B-4/lib/os_mon/c_src'
gmake[3]: *** [opt] Error 2
gmake[3]: Leaving directory 
`/usr/tools/erlang/otp_src_R12B-4/lib/os_mon/c_src'
gmake[2]: *** [opt] Error 2
gmake[2]: Leaving directory `/usr/tools/erlang/otp_src_R12B-4/lib/os_mon'
gmake[1]: *** [opt] Error 2
gmake[1]: Leaving directory `/usr/tools/erlang/otp_src_R12B-4/lib'
gmake: *** [libs] Error 2