fix examples to run process /bin/date well : System.Process uses cmd or command.com shell on Windows, doen't use Cygwin or MSYS shell

examples/makewith/io/TestIO.conf.in

@@ -13,5 +13,10 @@ resource = testio { field = date }
 -- call a shell command , returning it's output
 --
 date :: IO String
-date = do (_,out,_,_) <- catch (runInteractiveCommand "/bin/date") (\_->error "popen failed")
+date = do
+#if !defined(CYGWIN) || !defined(__MINGW32__)
+          (_,out,_,_) <- catch (runInteractiveCommand "/bin/date") (\_->error "popen failed")
+#else
+          (_,out,_,_) <- catch (runInteractiveCommand "@PREFIX@/../../bin/date") (\_->error "popen failed")
+#endif
           hGetLine out

examples/makewith/unsafeio/Unsafe.conf.in

@@ -10,7 +10,11 @@ resource = unsafe { field = date }
 -- illustrates the use of the devil's work
 date :: String
 date = unsafePerformIO $ do
+#if !defined(CYGWIN) || !defined(__MINGW32__)
             (_,outh,_,proc) <- runInteractiveProcess "date" [] Nothing Nothing		
+#else
+            (_,outh,_,proc) <- runInteractiveProcess "@PREFIX@/../../bin/date" [] Nothing Nothing		
+#endif
     	    waitForProcess proc
             s <- hGetContents outh
             return s