Compiling postgresql on WinNT

Windows NT 4.0 (sp5). I've installed cygwin version 1.1.4 and cygipc v1.07
and I am trying to run make on Postgresql 7.0.2 but have gotten several
errors that cause the make to fail. Are there certain combinations of
versions of cygwin, cygipc and postgresql that are known to work better than
others?

The first error was that it could not find /netinet/tcp.h under the cygwin
include directories. The file was not there. I came up with a workaround
but now the compile fails with:

make[2]: Entering directory `/d/usr/local/postgresql-7.0.2/src/utils'
gcc -I../include -I../backend -I/usr/local/include -O2
-I/usr/local/include -W
all -Wmissing-prototypes -Wmissing-declarations -c -o dllinit.o dllinit.c
dllinit.c:49: conflicting types for `DllMain'
dllinit.c:44: previous declaration of `DllMain'
dllinit.c:49: conflicting types for `_cygwin_dll_entry'
dllinit.c:49: previous declaration of `_cygwin_dll_entry'
dllinit.c:81: conflicting types for `DllMain'
dllinit.c:49: previous declaration of `DllMain'
make[2]: *** [dllinit.o] Error 1
make[2]: Leaving directory `/d/usr/local/postgresql-7.0.2/src/utils'
make[1]: *** [../utils/dllinit.o] Error 2
make[1]: Leaving directory `/d/usr/local/postgresql-7.0.2/src/backend'
make: *** [all] Error 2

Any help would be appreciated.
TIA
-Bob