Use gcc -ansi -pedantic in 9c.  Fix many non-C89-isms.
diff --git a/src/libauth/auth_respond.c b/src/libauth/auth_respond.c
index d39facf..b3cf666 100644
--- a/src/libauth/auth_respond.c
+++ b/src/libauth/auth_respond.c
@@ -5,7 +5,7 @@
 #include "authlocal.h"
 
 enum {
-	ARgiveup = 100,
+	ARgiveup = 100
 };
 
 static int