Remove __need macros from stdio.h and wchar.h.

wint_t is a little finicky because it might be defined by stddef.h, which
belongs to the compiler.

In addition to the _types_, a bunch of other declarations shared between
wctype.h and wchar.h are factored out to their own header.

	* libio/bits/types/FILE.h, libio/bits/types/__FILE.h
	* wcsmbs/bits/types/mbstate_t.h, wcsmbs/bits/types/__mbstate_t.h
	* wcsmbs/bits/types/wint_t.h: New single-type definition files.
	* wctype/bits/wctype-wchar.h: New file holding declarations shared
	between wctype.h and wchar.h.

	* libio/Makefile, wcsmbs/Makefile, wctype/Makefile:
	Install them.

	* include/bits/types/FILE.h, include/bits/types/__FILE.h
	* include/bits/types/mbstate_t.h, include/bits/types/__mbstate_t.h
	* include/bits/types/wint_t.h, include/bits/wcsmbs-wchar.h:
	New wrappers.
	* include/stdio.h, include/wchar.h, include/wctype.h:
	No need to handle __need macros.

	* grp/grp.h, gshadow/gshadow.h, hurd/hurd.h, iconv/gconv.h
	* libio/stdio.h, mach/mach.h, misc/mntent.h, pwd/pwd.h
	* shadow/shadow.h, stdio-common/printf.h, wcsmbs/uchar.h
	* wcsmbs/wchar.h, wctype/wctype.h
	* sysdeps/generic/_G_config.h, sysdeps/unix/sysv/linux/_G_config.h
	Use the new files instead of __need macros.

1 files changed, 173 insertions, 0 deletions

diff --git a/wctype/bits/wctype-wchar.h b/wctype/bits/wctype-wchar.h
new file mode 100644
index 0000000000..df5fd0396f
--- /dev/null
+++ b/wctype/bits/wctype-wchar.h
@@ -0,0 +1,173 @@
+/* Copyright (C) 1996-2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/*
+ *	ISO C99 Standard: 7.25
+ *	Wide character classification and mapping utilities  <wctype.h>
+ */
+
+#ifndef _BITS_WCTYPE_WCHAR_H
+#define _BITS_WCTYPE_WCHAR_H 1
+
+#if !defined _WCTYPE_H && !defined _WCHAR_H
+#error "Never include <bits/wctype-wchar.h> directly; include <wctype.h> or <wchar.h> instead."
+#endif
+
+#include <bits/types.h>
+#include <bits/types/wint_t.h>
+
+/* The definitions in this header are specified to appear in <wctype.h>
+   in ISO C99, but in <wchar.h> in Unix98.  _GNU_SOURCE follows C99.  */
+
+/* Scalar type that can hold values which represent locale-specific
+   character classifications.  */
+typedef unsigned long int wctype_t;
+
+# ifndef _ISwbit
+/* The characteristics are stored always in network byte order (big
+   endian).  We define the bit value interpretations here dependent on the
+   machine's byte order.  */
+
+#  include <endian.h>
+#  if __BYTE_ORDER == __BIG_ENDIAN
+#   define _ISwbit(bit)	(1 << (bit))
+#  else /* __BYTE_ORDER == __LITTLE_ENDIAN */
+#   define _ISwbit(bit)	\
+	((bit) < 8 ? (int) ((1UL << (bit)) << 24)			      \
+	 : ((bit) < 16 ? (int) ((1UL << (bit)) << 8)			      \
+	    : ((bit) < 24 ? (int) ((1UL << (bit)) >> 8)			      \
+	       : (int) ((1UL << (bit)) >> 24))))
+#  endif
+
+enum
+{
+  __ISwupper = 0,			/* UPPERCASE.  */
+  __ISwlower = 1,			/* lowercase.  */
+  __ISwalpha = 2,			/* Alphabetic.  */
+  __ISwdigit = 3,			/* Numeric.  */
+  __ISwxdigit = 4,			/* Hexadecimal numeric.  */
+  __ISwspace = 5,			/* Whitespace.  */
+  __ISwprint = 6,			/* Printing.  */
+  __ISwgraph = 7,			/* Graphical.  */
+  __ISwblank = 8,			/* Blank (usually SPC and TAB).  */
+  __ISwcntrl = 9,			/* Control character.  */
+  __ISwpunct = 10,			/* Punctuation.  */
+  __ISwalnum = 11,			/* Alphanumeric.  */
+
+  _ISwupper = _ISwbit (__ISwupper),	/* UPPERCASE.  */
+  _ISwlower = _ISwbit (__ISwlower),	/* lowercase.  */
+  _ISwalpha = _ISwbit (__ISwalpha),	/* Alphabetic.  */
+  _ISwdigit = _ISwbit (__ISwdigit),	/* Numeric.  */
+  _ISwxdigit = _ISwbit (__ISwxdigit),	/* Hexadecimal numeric.  */
+  _ISwspace = _ISwbit (__ISwspace),	/* Whitespace.  */
+  _ISwprint = _ISwbit (__ISwprint),	/* Printing.  */
+  _ISwgraph = _ISwbit (__ISwgraph),	/* Graphical.  */
+  _ISwblank = _ISwbit (__ISwblank),	/* Blank (usually SPC and TAB).  */
+  _ISwcntrl = _ISwbit (__ISwcntrl),	/* Control character.  */
+  _ISwpunct = _ISwbit (__ISwpunct),	/* Punctuation.  */
+  _ISwalnum = _ISwbit (__ISwalnum)	/* Alphanumeric.  */
+};
+# endif /* Not _ISwbit  */
+
+
+__BEGIN_DECLS
+
+/*
+ * Wide-character classification functions: 7.15.2.1.
+ */
+
+/* Test for any wide character for which `iswalpha' or `iswdigit' is
+   true.  */
+extern int iswalnum (wint_t __wc) __THROW;
+
+/* Test for any wide character for which `iswupper' or 'iswlower' is
+   true, or any wide character that is one of a locale-specific set of
+   wide-characters for which none of `iswcntrl', `iswdigit',
+   `iswpunct', or `iswspace' is true.  */
+extern int iswalpha (wint_t __wc) __THROW;
+
+/* Test for any control wide character.  */
+extern int iswcntrl (wint_t __wc) __THROW;
+
+/* Test for any wide character that corresponds to a decimal-digit
+   character.  */
+extern int iswdigit (wint_t __wc) __THROW;
+
+/* Test for any wide character for which `iswprint' is true and
+   `iswspace' is false.  */
+extern int iswgraph (wint_t __wc) __THROW;
+
+/* Test for any wide character that corresponds to a lowercase letter
+   or is one of a locale-specific set of wide characters for which
+   none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
+extern int iswlower (wint_t __wc) __THROW;
+
+/* Test for any printing wide character.  */
+extern int iswprint (wint_t __wc) __THROW;
+
+/* Test for any printing wide character that is one of a
+   locale-specific et of wide characters for which neither `iswspace'
+   nor `iswalnum' is true.  */
+extern int iswpunct (wint_t __wc) __THROW;
+
+/* Test for any wide character that corresponds to a locale-specific
+   set of wide characters for which none of `iswalnum', `iswgraph', or
+   `iswpunct' is true.  */
+extern int iswspace (wint_t __wc) __THROW;
+
+/* Test for any wide character that corresponds to an uppercase letter
+   or is one of a locale-specific set of wide character for which none
+   of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
+extern int iswupper (wint_t __wc) __THROW;
+
+/* Test for any wide character that corresponds to a hexadecimal-digit
+   character equivalent to that performed be the functions described
+   in the previous subclause.  */
+extern int iswxdigit (wint_t __wc) __THROW;
+
+/* Test for any wide character that corresponds to a standard blank
+   wide character or a locale-specific set of wide characters for
+   which `iswalnum' is false.  */
+# ifdef __USE_ISOC99
+extern int iswblank (wint_t __wc) __THROW;
+# endif
+
+/*
+ * Extensible wide-character classification functions: 7.15.2.2.
+ */
+
+/* Construct value that describes a class of wide characters identified
+   by the string argument PROPERTY.  */
+extern wctype_t wctype (const char *__property) __THROW;
+
+/* Determine whether the wide-character WC has the property described by
+   DESC.  */
+extern int iswctype (wint_t __wc, wctype_t __desc) __THROW;
+
+/*
+ * Wide-character case-mapping functions: 7.15.3.1.
+ */
+
+/* Converts an uppercase letter to the corresponding lowercase letter.  */
+extern wint_t towlower (wint_t __wc) __THROW;
+
+/* Converts an lowercase letter to the corresponding uppercase letter.  */
+extern wint_t towupper (wint_t __wc) __THROW;
+
+__END_DECLS
+
+#endif /* bits/wctype-wchar.h.  */