Refine previous change.

From-SVN: r177149

gcc/ada/gcc-interface/gigi.h

@@ -929,11 +929,6 @@ extern bool default_pass_by_ref (tree gnu_type);
    if it should be passed by reference.  */
 extern bool must_pass_by_ref (tree gnu_type);
 
-/* This function is called by the front-end to enumerate all the supported
-   modes for the machine, as well as some predefined C types.  */
-extern void enumerate_modes (void (*f) (const char *, int, int, int, int, int,
-                                        int));
-
 /* Return the size of the FP mode with precision PREC.  */
 extern int fp_prec_to_size (int prec);
 
@@ -970,6 +965,11 @@ extern Nat get_target_strict_alignment (void);
 extern Nat get_target_double_float_alignment (void);
 extern Nat get_target_double_scalar_alignment (void);
 
+/* This function is called by the front-end to enumerate all the supported
+   modes for the machine, as well as some predefined C types.  */
+extern void enumerate_modes (void (*f) (const char *, int, int, int, int, int,
+                                        int));
+
 #ifdef __cplusplus
 }
 #endif

gcc/ada/gcc-interface/misc.c

@@ -637,10 +637,6 @@ must_pass_by_ref (tree gnu_type)
 	      && TREE_CODE (TYPE_SIZE (gnu_type)) != INTEGER_CST));
 }
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 /* This function is called by the front-end to enumerate all the supported
    modes for the machine, as well as some predefined C types.  F is a function
    which is called back with the parameters as listed below, first a string,
@@ -759,11 +755,6 @@ enumerate_modes (void (*f) (const char *, int, int, int, int, int, int))
     }
 }
 
-#ifdef __cplusplus
-}
-#endif
-
-
 /* Return the size of the FP mode with precision PREC.  */
 
 int