stddef.h: Don't declare wint_t unless __need_wint_t.

	* ginclude/stddef.h: Don't declare wint_t unless __need_wint_t.
	* c-common.h (enum c_tree_index): Add CTI_WINT_TYPE.
	(wint_type_node): Define.
	* c-decl.c (WINT_TYPE): Define.
	(init_decl_processing): Create the wint_type_node type.
	* c-common.c (T_WI): Define.
	(print_char_table): Use T_WI for %lc format.

From-SVN: r35481

gcc/ChangeLog

+2000-08-04  Joseph S. Myers  <jsm28@cam.ac.uk>
+
+	* ginclude/stddef.h: Don't declare wint_t unless __need_wint_t.
+	* c-common.h (enum c_tree_index): Add CTI_WINT_TYPE.
+	(wint_type_node): Define.
+	* c-decl.c (WINT_TYPE): Define.
+	(init_decl_processing): Create the wint_type_node type.
+	* c-common.c (T_WI): Define.
+	(print_char_table): Use T_WI for %lc format.
+
 2000-08-04  Bruce Korb  <bkorb@gnu.org>
 
 	* fixinc/:  Verified that the MSDOS patch does not break

gcc/c-common.c

@@ -1193,6 +1193,7 @@ strip_attrs (specs_attrs)
 #define T_UC	&unsigned_char_type_node
 #define T_V	&void_type_node
 #define T_W	&wchar_type_node
+#define T_WI	&wint_type_node
 #define T_ST    &sizetype
 
 typedef struct {
@@ -1229,7 +1230,7 @@ static format_char_info print_char_table[] = {
 /* A GNU extension.  */
   { "m",	0,	T_V,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	"-wp"		},
   { "feEgGaA",	0,	T_D,	NULL,	NULL,	NULL,	NULL,	T_LD,	NULL,	"-wp0 +#"	},
-  { "c",	0,	T_I,	NULL,	NULL,	T_W,	NULL,	NULL,	NULL,	"-w"		},
+  { "c",	0,	T_I,	NULL,	NULL,	T_WI,	NULL,	NULL,	NULL,	"-w"		},
   { "C",	0,	T_W,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	"-w"		},
   { "s",	1,	T_C,	NULL,	NULL,	T_W,	NULL,	NULL,	NULL,	"-wp"		},
   { "S",	1,	T_W,	NULL,	NULL,	NULL,	NULL,	NULL,	NULL,	"-wp"		},

gcc/c-common.h

@@ -91,6 +91,7 @@ enum c_tree_index
     CTI_WCHAR_TYPE,
     CTI_SIGNED_WCHAR_TYPE,
     CTI_UNSIGNED_WCHAR_TYPE,
+    CTI_WINT_TYPE,
     CTI_WIDEST_INT_LIT_TYPE,
     CTI_WIDEST_UINT_LIT_TYPE,
 
@@ -122,6 +123,7 @@ enum c_tree_index
 #define wchar_type_node			c_global_trees[CTI_WCHAR_TYPE]
 #define signed_wchar_type_node		c_global_trees[CTI_SIGNED_WCHAR_TYPE]
 #define unsigned_wchar_type_node	c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
+#define wint_type_node			c_global_trees[CTI_WINT_TYPE]
 #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
 #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
 

gcc/c-decl.c

@@ -74,6 +74,10 @@ enum decl_context
 #ifndef WCHAR_TYPE
 #define WCHAR_TYPE "int"
 #endif
+
+#ifndef WINT_TYPE
+#define WINT_TYPE "unsigned int"
+#endif
 
 /* Do GC.  */
 int ggc_p = 1;
@@ -3037,6 +3041,8 @@ init_decl_processing ()
   signed_wchar_type_node = signed_type (wchar_type_node);
   unsigned_wchar_type_node = unsigned_type (wchar_type_node);
 
+  wint_type_node = TREE_TYPE (IDENTIFIER_GLOBAL_VALUE (get_identifier (WINT_TYPE)));
+
   boolean_type_node = integer_type_node;
   boolean_true_node = integer_one_node;
   boolean_false_node = integer_zero_node;

gcc/ginclude/stddef.h

@@ -302,7 +302,7 @@ typedef __WCHAR_TYPE__ wchar_t;
 #undef	__need_wchar_t
 #endif /* _STDDEF_H or __need_wchar_t.  */
 
-#if defined (_STDDEF_H) || defined (__need_wint_t)
+#if defined (__need_wint_t)
 #ifndef _WINT_T
 #define _WINT_T