diff --git a/src/win32/README b/src/win32/README
new file mode 100644
index 0000000000000000000000000000000000000000..0e1383f93dce87440561a9a002b8189879892929
--- /dev/null
+++ b/src/win32/README
@@ -0,0 +1,3 @@
+Add the included headers endian.h into Cygwin's include/, tcp.h into
+include/netinet, and un.h into include/sys.
+
diff --git a/src/win32/endian.h b/src/win32/endian.h
new file mode 100644
index 0000000000000000000000000000000000000000..6ba49cd2f288bba8eb9939246d14fc5c4261d1b9
--- /dev/null
+++ b/src/win32/endian.h
@@ -0,0 +1,8 @@
+#ifndef _ENDIAN_H_
+#define _ENDIAN_H_
+
+/* JKR added file, all hacks will be in the files added, not in EGCS */
+
+#include <sys/param.h>
+
+#endif
\ No newline at end of file
diff --git a/src/win32/tcp.h b/src/win32/tcp.h
new file mode 100644
index 0000000000000000000000000000000000000000..5fc85d9447bbdbf6229740a33970f8114aef67af
--- /dev/null
+++ b/src/win32/tcp.h
@@ -0,0 +1,6 @@
+#ifndef	_INET_TCP_
+#define	_INET_TCP_
+
+/* JKR added file, all hacks will be in the files added, not in EGCS */
+
+#endif	/* _INET_TCP_ */
diff --git a/src/win32/un.h b/src/win32/un.h
new file mode 100644
index 0000000000000000000000000000000000000000..a914c22afc0e0d3ee909498e8a9367ff08bd7d30
--- /dev/null
+++ b/src/win32/un.h
@@ -0,0 +1,11 @@
+#ifndef	_SYS_UN_H
+#define	_SYS_UN_H
+
+/* JKR added file, all hacks will be in the files added, not in EGCS */
+
+struct	sockaddr_un {
+	short	sun_family;		/* AF_UNIX */
+	char	sun_path[108];		/* path name (gag) */
+};
+
+#endif /* _SYS_UN_H */
\ No newline at end of file