[COMMITTED PATCH] Move _G_config.h with Linuxism to linux/ directory.

[Roland McGrath <roland at hack dot frob dot com>]

The purpose of sysdeps/gnu/ is to contain things that are actually common
between linux and hurd configurations.  mremap is purely a Linuxism and so
_G_HAVE_MREMAP does not belong anywhere outside sysdeps/.../linux/.  The
only differences between the old (unused) sysdeps/generic/_G_config.h and
sysdeps/mach/hurd/_G_config.h are about *64 interfaces that are in fact
part of the OS-independent generic glibc API.  So the old hurd/ file
becomes the new generic file, and the old gnu/ file becomes the linux/ file.

	* sysdeps/gnu/_G_config.h: Moved to ...
	* sysdeps/unix/sysv/linux/_G_config.h: ... here.
	* sysdeps/mach/hurd/_G_config.h: Moved to ...
	* sysdeps/generic/_G_config.h: ... here.


diff --git a/sysdeps/generic/_G_config.h b/sysdeps/generic/_G_config.h
index fc83565..b3a7db7 100644
--- a/sysdeps/generic/_G_config.h
+++ b/sysdeps/generic/_G_config.h
@@ -28,8 +28,8 @@ typedef struct
   __off64_t __pos;
   __mbstate_t __state;
 } _G_fpos64_t;
-#define _G_off64_t	__off_t
-#define _G_stat64	stat
+#define _G_off64_t	__off64_t
+#define _G_stat64	stat64
 #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
 # include <gconv.h>
 typedef union
@@ -51,6 +51,11 @@ typedef union
 
 #define _G_IO_IO_FILE_VERSION 0x20001
 
+#define _G_OPEN64	__open64
+#define _G_LSEEK64	__lseek64
+#define _G_MMAP64	__mmap64
+#define _G_FSTAT64(fd,buf) __fxstat64 (_STAT_VER, fd, buf)
+
 /* This is defined by <bits/stat.h> if `st_blksize' exists.  */
 #define _G_HAVE_ST_BLKSIZE defined (_STATBUF_ST_BLKSIZE)
 
diff --git a/sysdeps/mach/hurd/_G_config.h b/sysdeps/mach/hurd/_G_config.h
deleted file mode 100644
index b3a7db7..0000000
--- a/sysdeps/mach/hurd/_G_config.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/* This file is needed by libio to define various configuration parameters.
-   These are always the same in the GNU C library.  */
-
-#ifndef _G_config_h
-#define _G_config_h 1
-
-/* Define types for libio in terms of the standard internal type names.  */
-
-#include <bits/types.h>
-#define __need_size_t
-#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
-# define __need_wchar_t
-#endif
-#define __need_NULL
-#include <stddef.h>
-#define __need_mbstate_t
-#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
-# define __need_wint_t
-#endif
-#include <wchar.h>
-typedef struct
-{
-  __off_t __pos;
-  __mbstate_t __state;
-} _G_fpos_t;
-typedef struct
-{
-  __off64_t __pos;
-  __mbstate_t __state;
-} _G_fpos64_t;
-#define _G_off64_t	__off64_t
-#define _G_stat64	stat64
-#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
-# include <gconv.h>
-typedef union
-{
-  struct __gconv_info __cd;
-  struct
-  {
-    struct __gconv_info __cd;
-    struct __gconv_step_data __data;
-  } __combined;
-} _G_iconv_t;
-#endif
-
-
-/* These library features are always available in the GNU C library.  */
-#define _G_va_list __gnuc_va_list
-
-#define _G_HAVE_MMAP 1
-
-#define _G_IO_IO_FILE_VERSION 0x20001
-
-#define _G_OPEN64	__open64
-#define _G_LSEEK64	__lseek64
-#define _G_MMAP64	__mmap64
-#define _G_FSTAT64(fd,buf) __fxstat64 (_STAT_VER, fd, buf)
-
-/* This is defined by <bits/stat.h> if `st_blksize' exists.  */
-#define _G_HAVE_ST_BLKSIZE defined (_STATBUF_ST_BLKSIZE)
-
-#define _G_BUFSIZ 8192
-
-#endif	/* _G_config.h */
diff --git a/sysdeps/gnu/_G_config.h b/sysdeps/unix/sysv/linux/_G_config.h
similarity index 100%
rename from sysdeps/gnu/_G_config.h
rename to sysdeps/unix/sysv/linux/_G_config.h