Relocate alpha from ports to libc

Also fixed the following whitespace nits to satisfy the push:

sysdeps/alpha/alphaev6/memset.S:142: space before tab in indent.
sysdeps/alpha/configure:1: new blank line at EOF.
sysdeps/alpha/fpu/e_sqrt.c:126: space before tab in indent.
sysdeps/alpha/preconfigure:1: new blank line at EOF.
sysdeps/unix/sysv/linux/alpha/syscalls.list:1: new blank line at EOF.

1 files changed, 57 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/alpha/bits/dirent.h b/sysdeps/unix/sysv/linux/alpha/bits/dirent.h
new file mode 100644
index 0000000000..01b043a7b2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/bits/dirent.h
@@ -0,0 +1,57 @@
+/* Copyright (C) 1996-2014 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/>.  */
+
+#ifndef _BITS_DIRENT_H
+#define _BITS_DIRENT_H	1
+
+struct dirent
+  {
+#ifdef __USE_FILE_OFFSET64
+    __ino64_t d_ino;
+#else
+    __ino_t d_ino;
+    int __pad;
+#endif
+    __off_t d_off;
+    unsigned short int d_reclen;
+    unsigned char d_type;
+    char d_name[256];		/* We must not include limits.h! */
+  };
+
+#ifdef __USE_LARGEFILE64
+/* Note dirent64 is the same as dirent.  */
+struct dirent64
+  {
+    __ino64_t d_ino;
+    __off64_t d_off;
+    unsigned short int d_reclen;
+    unsigned char d_type;
+    char d_name[256];		/* We must not include limits.h! */
+  };
+#endif
+
+#define d_fileno	d_ino	/* Backwards compatibility.  */
+
+#undef  _DIRENT_HAVE_D_NAMLEN
+#define _DIRENT_HAVE_D_RECLEN
+#define _DIRENT_HAVE_D_OFF
+#define _DIRENT_HAVE_D_TYPE
+
+/* Inform libc code that these two types are effectively identical.  */
+#define _DIRENT_MATCHES_DIRENT64	1
+
+#endif /* bits/dirent.h */