Do not use '#endif/#else xxx'; it is not allowed for ANSI C

lang/cem/cemcom/sizes.h

@@ -14,9 +14,9 @@ extern arith
 	short_size, word_size, dword_size, int_size, long_size,
 #ifndef NOFLOAT
 	float_size, double_size,
-#endif NOFLOAT
+#endif /* NOFLOAT */
 	pointer_size;
-#else NOCROSS
+#else /* NOCROSS */
 #define short_size	(SZ_SHORT)
 #define word_size	(SZ_WORD)
 #define dword_size	(2*SZ_WORD)
@@ -25,8 +25,8 @@ extern arith
 #ifndef NOFLOAT
 #define float_size	(SZ_FLOAT)
 #define double_size	(SZ_DOUBLE)
-#endif NOFLOAT
+#endif /* NOFLOAT */
 #define pointer_size	(SZ_POINTER)
-#endif NOCROSS
+#endif /* NOCROSS */
 
 extern arith max_int, max_unsigned;	/* cstoper.c	*/