2017-10-29  Jim Wilson  <wilson@tuliptree.org>

	gcc/fortran/
	* parse.c (unexpected_eof): Call gcc_unreachable before return.

Index: gcc/fortran/parse.c
===================================================================
--- gcc/fortran/parse.c	(revision 254210)
+++ gcc/fortran/parse.c	(working copy)
@@ -2737,6 +2737,9 @@ unexpected_eof (void)
   gfc_done_2 ();
 
   longjmp (eof_buf, 1);
+
+  /* Avoids build error on systems where longjmp is not declared noreturn.  */
+  gcc_unreachable ();
 }