utimens: cache whether utimensat syscall works

[pspp] / lib / chown.c

diff --git a/lib/chown.c b/lib/chown.c
index b7786f62057b7b694df08977c485f62462aac352..b851cbc4c0bf13e7e88854bd93fb6ac0675c628e 100644 (file)
--- a/lib/chown.c
+++ b/lib/chown.c
@@ -1,12 +1,12 @@
 /* provide consistent interface to chown for systems that don't interpret
    an ID of -1 as meaning `don't change the corresponding ID'.
 
-   Copyright (C) 1997, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2004-2007, 2009 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -14,8 +14,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* written by Jim Meyering */
 
@@ -47,7 +46,8 @@
 int
 rpl_chown (const char *file, uid_t uid, gid_t gid)
 {
-#if CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE
+#if HAVE_CHOWN
+# if CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE
   if (gid == (gid_t) -1 || uid == (uid_t) -1)
     {
       struct stat file_stats;
@@ -62,9 +62,9 @@ rpl_chown (const char *file, uid_t uid, gid_t gid)
       if (uid == (uid_t) -1)
        uid = file_stats.st_uid;
     }
-#endif
+# endif
 
-#if CHOWN_MODIFIES_SYMLINK
+# if CHOWN_MODIFIES_SYMLINK
   {
     /* Handle the case in which the system-supplied chown function
        does *not* follow symlinks.  Instead, it changes permissions
@@ -98,7 +98,12 @@ rpl_chown (const char *file, uid_t uid, gid_t gid)
     else if (errno != EACCES)
       return -1;
   }
-#endif
+# endif
 
   return chown (file, uid, gid);
+
+#else /* !HAVE_CHOWN */
+  errno = ENOSYS;
+  return -1;
+#endif
 }