[Emacs-diffs] /srv/bzr/emacs/trunk r104518: Merge from gnulib.

[Paul Eggert]

------------------------------------------------------------
revno: 104518
committer: Paul Eggert <address@hidden>
branch nick: trunk
timestamp: Mon 2011-06-06 12:53:44 -0700
message:
  Merge from gnulib.
  
  * lib/careadlinkat.c, lib/careadlinkat.h, m4/gnulib-common.m4: Merge.
modified:
  ChangeLog
  lib/careadlinkat.c
  lib/careadlinkat.h
  m4/gnulib-common.m4

=== modified file 'ChangeLog'
--- a/ChangeLog 2011-06-02 08:40:41 +0000
+++ b/ChangeLog 2011-06-06 19:53:44 +0000
@@ -1,3 +1,8 @@
+2011-06-06  Paul Eggert  <address@hidden>
+
+       Merge from gnulib.
+       * lib/careadlinkat.c, lib/careadlinkat.h, m4/gnulib-common.m4: Merge.
+
 2011-06-02  Paul Eggert  <address@hidden>
 
        * lib/allocator.h, lib/careadlinkat.c: Merge from gnulib.

=== modified file 'lib/careadlinkat.c'
--- a/lib/careadlinkat.c        2011-06-02 08:25:28 +0000
+++ b/lib/careadlinkat.c        2011-06-06 19:53:44 +0000
@@ -39,7 +39,6 @@
 
 #include "allocator.h"
 
-#if ! HAVE_READLINKAT
 /* Get the symbolic link value of FILENAME and put it into BUFFER, with
    size BUFFER_SIZE.  This function acts like readlink  but has
    readlinkat's signature.  */
@@ -53,7 +52,6 @@
     abort ();
   return readlink (filename, buffer, buffer_size);
 }
-#endif
 
 /* Assuming the current directory is FD, get the symbolic link value
    of FILENAME as a null-terminated string and put it into a buffer.

=== modified file 'lib/careadlinkat.h'
--- a/lib/careadlinkat.h        2011-04-09 18:44:05 +0000
+++ b/lib/careadlinkat.h        2011-06-06 19:53:44 +0000
@@ -56,8 +56,7 @@
    when doing a plain readlink:
    Pass FD = AT_FDCWD and PREADLINKAT = careadlinkatcwd.  */
 #if HAVE_READLINKAT
-/* AT_FDCWD is declared in <fcntl.h>, readlinkat in <unistd.h>.  */
-# define careadlinkatcwd readlinkat
+/* AT_FDCWD is declared in <fcntl.h>.  */
 #else
 /* Define AT_FDCWD independently, so that the careadlinkat module does
    not depend on the fcntl-h module.  The value does not matter, since
@@ -66,8 +65,8 @@
 # ifndef AT_FDCWD
 #  define AT_FDCWD (-3041965)
 # endif
+#endif
 ssize_t careadlinkatcwd (int fd, char const *filename,
                          char *buffer, size_t buffer_size);
-#endif
 
 #endif /* _GL_CAREADLINKAT_H */

=== modified file 'm4/gnulib-common.m4'
--- a/m4/gnulib-common.m4       2011-04-01 06:07:33 +0000
+++ b/m4/gnulib-common.m4       2011-06-06 19:53:44 +0000
@@ -1,4 +1,4 @@
-# gnulib-common.m4 serial 24
+# gnulib-common.m4 serial 25
 dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -34,6 +34,20 @@
 /* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name
    is a misnomer outside of parameter lists.  */
 #define _UNUSED_PARAMETER_ _GL_UNUSED
+
+/* The __pure__ attribute was added in gcc 2.96.  */
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
+# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
+#else
+# define _GL_ATTRIBUTE_PURE /* empty */
+#endif
+
+/* The __const__ attribute was added in gcc 2.95.  */
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
+# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
+#else
+# define _GL_ATTRIBUTE_CONST /* empty */
+#endif
 ])
   dnl Preparation for running test programs:
   dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not