diff -Naur patch-2.7.1/src/inp.c patch-2.7.1-p/src/inp.c
--- patch-2.7.1/src/inp.c	2012-09-19 05:07:31 +0400
+++ patch-2.7.1-p/src/inp.c	2013-02-24 13:50:56 +0400
@@ -231,7 +231,11 @@
     {
       if (S_ISREG (instat.st_mode))
         {
+#ifdef __CYGWIN__
+	  int ifd = safe_open (filename, O_RDONLY | (binary_transput ?: O_TEXT), 0);
+#else
 	  int ifd = safe_open (filename, O_RDONLY|binary_transput, 0);
+#endif
 	  size_t buffered = 0, n;
 	  if (ifd < 0)
 	    pfatal ("can't open file %s", quotearg (filename));
diff -Naur patch-2.7.1/src/patch.c patch-2.7.1-p/src/patch.c
--- patch-2.7.1/src/patch.c	2012-09-28 14:43:12 +0400
+++ patch-2.7.1-p/src/patch.c	2013-02-24 13:51:50 +0400
@@ -798,7 +798,11 @@
 "",
 "  -d DIR  --directory=DIR  Change the working directory to DIR first.",
 "  --reject-format=FORMAT  Create 'context' or 'unified' rejects.",
+#ifdef __CYGWIN__
+"  --binary  Read data in binary mode.  Writing data is always binary.",
+#else
 "  --binary  Read and write data in binary mode.",
+#endif
 "  --read-only=BEHAVIOR  How to handle read-only input files: 'ignore' that they",
 "                        are read-only, 'warn' (default), or 'fail'.",
 "",
@@ -1526,9 +1530,15 @@
 static FILE *
 create_output_file (char const *name, int open_flags)
 {
+#ifdef __CYGWIN__
+  int fd = create_file (name, O_WRONLY | O_BINARY | open_flags,
+			instat.st_mode, true);
+  FILE *f = fdopen (fd, "wb");
+#else
   int fd = create_file (name, O_WRONLY | binary_transput | open_flags,
 			instat.st_mode, true);
   FILE *f = fdopen (fd, binary_transput ? "wb" : "w");
+#endif
   if (! f)
     pfatal ("Can't create file %s", quotearg (name));
   return f;
diff -Naur patch-2.7.1/src/pch.c patch-2.7.1-p/src/pch.c
--- patch-2.7.1/src/pch.c	2012-09-22 21:44:33 +0400
+++ patch-2.7.1-p/src/pch.c	2013-02-24 13:54:00 +0400
@@ -124,8 +124,10 @@
 #if HAVE_SETMODE_DOS
     if (binary_transput)
       {
+#ifndef __CYGWIN__
 	if (isatty (fileno (pfp)))
 	  fatal ("cannot read binary data from tty on this platform");
+#endif
 	setmode (fileno (pfp), O_BINARY);
       }
 #endif
@@ -2393,7 +2395,11 @@
 		 verbosity == VERBOSE ? "" : "- ",
 		 outname);
 	fflush (stdout);
+#ifdef __CYGWIN__
+       pipefp = popen(buf, "wb");
+#else
 	pipefp = popen(buf, binary_transput ? "wb" : "w");
+#endif
 	if (!pipefp)
 	  pfatal ("Can't open pipe to %s", quotearg (buf));
     }