Add support for FT32 platform.

libgloss/ft32/sim-inbyte.c

@@ -0,0 +1,26 @@
+/*
+ * sim-inbyte.c -- read a character from standard input.
+ *
+ * Copyright (C) 2015 FTDI (support@ftdichip.com)
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+int
+inbyte ()
+{
+  char c;
+
+  if (read (0, &c, 1) <= 0)
+    return -1;
+
+  return c;
+}