Hi all:
    I try to build batteries 1.30 on my win7 PC,but it give me a fatal error like this:
  
  $ make all
cp -f src/batCamomile-0.7.ml src/batCamomile.ml
test ! -e src/batteries_config.ml || rm src/batteries_config.ml
ocamlbuild syntax.otarget byte.otarget src/batteries_help.cmo META shared.otarge
t
Finished, 0 targets (0 cached) in 00:00:00.
+ ocamlrun mkconf.byte src/batteries_config.mlp src/batteries_config.ml
Fatal error: unknown C primitive `unix_dup'
Command exited with code 2.
Compilation unsuccessful after building 276 targets (275 cached) in 00:00:01.
make: *** [all] Error 10
  
 is it don't support the windows 7?