Merge from gnulib

This incorporates:
2015-06-06 acl-permissions: pacify -Wsuggest-attribute=const
2015-06-05 stdio: Don't redefine gets when using C++
2015-06-05 acl-permissions: port to AIX, C89 HP-UX
2015-06-02 file-has-acl: fix build on Mac OS X 10
2015-06-01 gnulib-tool: concatenate lib_SOURCES to a single line
2015-06-01 pthread_sigmask: discount system version if a simple macro
2015-05-31 readlinkat: avoid OS X 10.10 trailing slash bug
* doc/misc/texinfo.tex, lib/acl-internal.h, lib/get-permissions.c:
* lib/readlinkat.c, lib/set-permissions.c, lib/stdio.in.h:
* m4/acl.m4, m4/pthread_sigmask.m4, m4/readlinkat.m4: Copy from gnulib.
* lib/gnulib.mk: Regenerate.

1 files changed, 49 insertions, 44 deletions

diff --git a/lib/get-permissions.c b/lib/get-permissions.c
index ccee1f1410e..6c6618df989 100644
--- a/lib/get-permissions.c
+++ b/lib/get-permissions.c
@@ -33,7 +33,7 @@ int
 get_permissions (const char *name, int desc, mode_t mode,
 		 struct permission_context *ctx)
 {
-  memset (ctx, 0, sizeof(*ctx));
+  memset (ctx, 0, sizeof *ctx);
   ctx->mode = mode;
 
 #if USE_ACL && HAVE_ACL_GET_FILE
@@ -215,38 +215,40 @@ get_permissions (const char *name, int desc, mode_t mode,
 
 #elif USE_ACL && HAVE_GETACL /* HP-UX */
 
-  int ret;
-
-  if (desc != -1)
-    ret = fgetacl (desc, NACLENTRIES, ctx->entries);
-  else
-    ret = getacl (name, NACLENTRIES, ctx->entries);
-  if (ret < 0)
-    {
-      if (errno == ENOSYS || errno == EOPNOTSUPP || errno == ENOTSUP)
-	ret = 0;
-      else
-        return -1;
-    }
-  else if (ret > NACLENTRIES)
-    /* If NACLENTRIES cannot be trusted, use dynamic memory allocation.  */
-    abort ();
-  ctx->count = ret;
+  {
+    int ret;
+
+    if (desc != -1)
+      ret = fgetacl (desc, NACLENTRIES, ctx->entries);
+    else
+      ret = getacl (name, NACLENTRIES, ctx->entries);
+    if (ret < 0)
+      {
+        if (errno == ENOSYS || errno == EOPNOTSUPP || errno == ENOTSUP)
+          ret = 0;
+        else
+          return -1;
+      }
+    else if (ret > NACLENTRIES)
+      /* If NACLENTRIES cannot be trusted, use dynamic memory allocation.  */
+      abort ();
+    ctx->count = ret;
 
 # if HAVE_ACLV_H
-  ret = acl ((char *) name, ACL_GET, NACLVENTRIES, ctx->aclv_entries);
-  if (ret < 0)
-    {
-      if (errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL)
-        ret = 0;
-      else
-        return -2;
-    }
-  else if (ret > NACLVENTRIES)
-    /* If NACLVENTRIES cannot be trusted, use dynamic memory allocation.  */
+    ret = acl ((char *) name, ACL_GET, NACLVENTRIES, ctx->aclv_entries);
+    if (ret < 0)
+      {
+        if (errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL)
+          ret = 0;
+        else
+          return -2;
+      }
+    else if (ret > NACLVENTRIES)
+      /* If NACLVENTRIES cannot be trusted, use dynamic memory allocation.  */
       abort ();
-  ctx->aclv_count = ret;
+    ctx->aclv_count = ret;
 # endif
+  }
 
 #elif USE_ACL && HAVE_ACLX_GET && ACL_AIX_WIP /* AIX */
 
@@ -254,24 +256,27 @@ get_permissions (const char *name, int desc, mode_t mode,
 
 #elif USE_ACL && HAVE_STATACL /* older AIX */
 
-  if (desc != -1)
-    ret = fstatacl (desc, STX_NORMAL, &ctx->u.a, sizeof (ctx->u));
-  else
-    ret = statacl (name, STX_NORMAL, &ctx->u.a, sizeof (ctx->u));
-  if (ret == 0)
-    ctx->have_u = true;
+  {
+    int ret;
+    if (desc != -1)
+      ret = fstatacl (desc, STX_NORMAL, &ctx->u.a, sizeof ctx->u);
+    else
+      ret = statacl ((char *) name, STX_NORMAL, &ctx->u.a, sizeof ctx->u);
+    if (ret == 0)
+      ctx->have_u = true;
+  }
 
 #elif USE_ACL && HAVE_ACLSORT /* NonStop Kernel */
 
-  int ret;
-
-  ret = acl ((char *) name, ACL_GET, NACLENTRIES, ctx->entries);
-  if (ret < 0)
-    return -1;
-  else if (ret > NACLENTRIES)
-    /* If NACLENTRIES cannot be trusted, use dynamic memory allocation.  */
-    abort ();
-  ctx->count = ret;
+  {
+    int ret = acl ((char *) name, ACL_GET, NACLENTRIES, ctx->entries);
+    if (ret < 0)
+      return -1;
+    else if (ret > NACLENTRIES)
+      /* If NACLENTRIES cannot be trusted, use dynamic memory allocation.  */
+      abort ();
+    ctx->count = ret;
+  }
 
 #endif