bitchx on 10.8.4

$ sudo fink install bitchx
# ...
# ...
# ...
compat.c:1044:2: error: void function 'bsd_unsetenv' should not return a value [-Wreturn-type]
        return unsetenv(name);
        ^      ~~~~~~~~~~~~~~
1 warning and 1 error generated.
make[1]: *** [compat.o] Error 1
make: *** [BitchX] Error 2
### execution of make failed, exit code 2
### execution of /tmp/fink.XskjY failed, exit code 2
Removing runtime build-lock...
Removing build-lock package...
/sw/bin/dpkg-lockwait -r fink-buildlock-bitchx-1.0c19-1032
(Reading database ... 84118 files and directories currently installed.)
Removing fink-buildlock-bitchx-1.0c19-1032 ...
Failed: phase compiling: bitchx-1.0c19-1032 failed