From 199fc19d3aaaf57944ef036e15904febe877fc93 Mon Sep 17 00:00:00 2001
From: Zack Weinberg <zackw@panix.com>
Date: Sun, 20 Nov 2016 23:00:02 -0500
Subject: 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.
---
 libio/Makefile            |  3 ++-
 libio/bits/types/FILE.h   |  9 +++++++++
 libio/bits/types/__FILE.h |  7 +++++++
 libio/stdio.h             | 47 +++++++++--------------------------------------
 4 files changed, 27 insertions(+), 39 deletions(-)
 create mode 100644 libio/bits/types/FILE.h
 create mode 100644 libio/bits/types/__FILE.h

(limited to 'libio')

diff --git a/libio/Makefile b/libio/Makefile
index be252f7..a002a33 100644
--- a/libio/Makefile
+++ b/libio/Makefile
@@ -23,7 +23,8 @@ subdir	:= libio
 include ../Makeconfig
 
 headers	:= stdio.h libio.h _G_config.h bits/stdio.h \
-	   bits/sys_errlist.h bits/stdio2.h bits/stdio-ldbl.h bits/libio-ldbl.h
+	   bits/sys_errlist.h bits/stdio2.h bits/stdio-ldbl.h bits/libio-ldbl.h \
+	   bits/types/FILE.h bits/types/__FILE.h
 
 routines	:=							      \
 	filedoalloc iofclose iofdopen iofflush iofgetpos iofgets iofopen      \
diff --git a/libio/bits/types/FILE.h b/libio/bits/types/FILE.h
new file mode 100644
index 0000000..f268263
--- /dev/null
+++ b/libio/bits/types/FILE.h
@@ -0,0 +1,9 @@
+#ifndef __FILE_defined
+#define __FILE_defined 1
+
+struct _IO_FILE;
+
+/* The opaque type of streams.  This is the definition used elsewhere.  */
+typedef struct _IO_FILE FILE;
+
+#endif
diff --git a/libio/bits/types/__FILE.h b/libio/bits/types/__FILE.h
new file mode 100644
index 0000000..06dd79b
--- /dev/null
+++ b/libio/bits/types/__FILE.h
@@ -0,0 +1,7 @@
+#ifndef ____FILE_defined
+#define ____FILE_defined 1
+
+struct _IO_FILE;
+typedef struct _IO_FILE __FILE;
+
+#endif
diff --git a/libio/stdio.h b/libio/stdio.h
index 422f39d..47490c8 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -21,48 +21,21 @@
  */
 
 #ifndef _STDIO_H
+#define _STDIO_H	1
 
-#if !defined __need_FILE && !defined __need___FILE
-# define _STDIO_H	1
-# define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
-# include <bits/libc-header-start.h>
+#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+#include <bits/libc-header-start.h>
 
 __BEGIN_DECLS
 
-# define __need_size_t
-# define __need_NULL
-# include <stddef.h>
+#define __need_size_t
+#define __need_NULL
+#include <stddef.h>
 
-# include <bits/types.h>
-# define __need_FILE
-# define __need___FILE
-#endif /* Don't need FILE.  */
+#include <bits/types.h>
+#include <bits/types/__FILE.h>
+#include <bits/types/FILE.h>
 
-
-#if !defined __FILE_defined && defined __need_FILE
-
-/* Define outside of namespace so the C++ is happy.  */
-struct _IO_FILE;
-
-/* The opaque type of streams.  This is the definition used elsewhere.  */
-typedef struct _IO_FILE FILE;
-
-# define __FILE_defined	1
-#endif /* FILE not defined.  */
-#undef	__need_FILE
-
-
-#if !defined ____FILE_defined && defined __need___FILE
-
-/* The opaque type of streams.  This is the definition used elsewhere.  */
-typedef struct _IO_FILE __FILE;
-
-# define ____FILE_defined	1
-#endif /* __FILE not defined.  */
-#undef	__need___FILE
-
-
-#ifdef	_STDIO_H
 #define _STDIO_USES_IOSTREAM
 
 #include <libio.h>
@@ -895,5 +868,3 @@ extern void funlockfile (FILE *__stream) __THROW;
 __END_DECLS
 
 #endif /* <stdio.h> included.  */
-
-#endif /* !_STDIO_H */
-- 
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