--- common.opt.orig	2009-09-15 07:39:22.000000000 -0600
+++ common.opt	2009-09-15 07:39:54.000000000 -0600
@@ -1016,6 +1016,11 @@
 Common Report Var(flag_syntax_only)
 Check for syntax errors, then stop
 
+; This is basically just an alias for -fsyntax_only, in practice
+fffigen
+Common Report Var(flag_syntax_only) VarExists
+Generate .ffi output
+
 ftest-coverage
 Common Report Var(flag_test_coverage)
 Create data files needed by \"gcov\"