X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=m4%2Flchown.m4;h=9401d9f47ac3786bd337009d280caea4bf349678;hb=daa269958ad8d50ef8154ccb65e58acaf7a6dd99;hp=b719ed074c638a3bbca2ee1516831ca989b6381e;hpb=138fc7e67e3d9845cd7d81aad0e9c7724784f9b9;p=debian%2Ftar

diff --git a/m4/lchown.m4 b/m4/lchown.m4
index b719ed07..9401d9f4 100644
--- a/m4/lchown.m4
+++ b/m4/lchown.m4
@@ -1,22 +1,38 @@
-#serial 12
+# serial 17
 # Determine whether we need the lchown wrapper.
 
-dnl Copyright (C) 1998, 2001, 2003, 2004, 2005, 2006, 2007 Free
-dnl Software Foundation, Inc.
+dnl Copyright (C) 1998, 2001, 2003-2007, 2009-2013 Free Software Foundation,
+dnl Inc.
 
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl From Jim Meyering.
-dnl Provide lchown on systems that lack it.
+dnl Provide lchown on systems that lack it, and work around bugs
+dnl on systems that have it.
 
 AC_DEFUN([gl_FUNC_LCHOWN],
 [
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
   AC_REQUIRE([gl_FUNC_CHOWN])
-  AC_REPLACE_FUNCS(lchown)
+  AC_CHECK_FUNCS_ONCE([lchmod])
+  AC_CHECK_FUNCS([lchown])
   if test $ac_cv_func_lchown = no; then
-    REPLACE_LCHOWN=1
+    HAVE_LCHOWN=0
+  else
+    dnl Trailing slash and ctime bugs in chown also occur in lchown.
+    case "$gl_cv_func_chown_slash_works" in
+      *yes) ;;
+      *)
+        REPLACE_LCHOWN=1
+        ;;
+    esac
+    case "$gl_cv_func_chown_ctime_works" in
+      *yes) ;;
+      *)
+        REPLACE_LCHOWN=1
+        ;;
+    esac
   fi
 ])