Error in compiling "pgcrypto" module in Win32

I'm using PostgreSQL 8.0.0 beta1
I can compile all contrib modules but pgcrypton
i have this error when I execute make

md5.o(.text+0x1ee):md5.c: undefined reference to `bcopy'
md5.o(.text+0x25c):md5.c: undefined reference to `bcopy'
md5.o(.text+0x2ae):md5.c: undefined reference to `bcopy'
md5.o(.text+0x2c1):md5.c: undefined reference to `bcopy'
md5.o(.text+0x2e6):md5.c: undefined reference to `bcopy'
md5.o(.text+0x301):md5.c: more undefined references to `bcopy' follow
crypt-des.o(.text+0x520):crypt-des.c: undefined reference to `ntohl(at)4'
crypt-des.o(.text+0x52b):crypt-des.c: undefined reference to `ntohl(at)4'
crypt-des.o(.text+0xb92):crypt-des.c: undefined reference to `ntohl(at)4'
crypt-des.o(.text+0xb9d):crypt-des.c: undefined reference to `ntohl(at)4'
crypt-des.o(.text+0xbbe):crypt-des.c: undefined reference to `htonl(at)4'
crypt-des.o(.text+0xbca):crypt-des.c: undefined reference to `htonl(at)4'
c:\MinGW\bin\dllwrap.exe: c:\MinGW\bin\gcc exited with status 1
make: *** [libpgcrypto.a] Error 1

What can i do?