problem compiling s48 on x86_64 Linux

I am compiling on archlinux, here's the output of make.

<<< make
gcc -c  -DHAVE_CONFIG_H -D__COMPILING_SCHEME48_ITSELF__
-DS48_HOST_ARCHITECTURE=\"x86_64-unknown-linux-gnu\" -I ./c -I./c
-I./c/bibop -g -O2 -pthread -o c/unix/socket.o c/unix/socket.c
c/unix/socket.c: In function 'gethostbyname_thread':
c/unix/socket.c:354: error: 'struct hostent' has no member named 'h_addr'
c/unix/socket.c: In function 's48_get_host_by_name':
c/unix/socket.c:385: error: 'struct hostent' has no member named 'h_addr'
make: exit 2
make: *** [c/unix/socket.o] Error 1


<<< gcc --version
gcc (GCC) 4.4.0
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.