Tweak code into an equivalent form for which icc
doesn't warn about unreachable instructions.  Patch
by Erick Tryzelaar (#111).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81110 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Unix/Process.inc b/lib/System/Unix/Process.inc
index c4ce35a..774783f 100644
--- a/lib/System/Unix/Process.inc
+++ b/lib/System/Unix/Process.inc
@@ -181,25 +181,28 @@
 bool Process::StandardInIsUserInput() {
 #if HAVE_ISATTY
   return isatty(0);
-#endif
+#else
   // If we don't have isatty, just return false.
   return false;
+#endif
 }
 
 bool Process::StandardOutIsDisplayed() {
 #if HAVE_ISATTY
   return isatty(1);
-#endif
+#else
   // If we don't have isatty, just return false.
   return false;
+#endif
 }
 
 bool Process::StandardErrIsDisplayed() {
 #if HAVE_ISATTY
   return isatty(2);
-#endif
+#else
   // If we don't have isatty, just return false.
   return false;
+#endif
 }
 
 static unsigned getColumns(int FileID) {