openat: detect Solaris fchownat bug

[gnulib.git] / m4 / openat.m4

diff --git a/m4/openat.m4 b/m4/openat.m4
index 6b4f95c..e6ea25e 100644 (file)
--- a/m4/openat.m4
+++ b/m4/openat.m4
@@ -1,4 +1,4 @@
-# serial 25
+# serial 26
 # See if we need to use our replacement for Solaris' openat et al functions.
 
 dnl Copyright (C) 2004-2009 Free Software Foundation, Inc.
@@ -102,9 +102,15 @@ main ()
 # Also use the replacement function if fchownat is simply not available.
 AC_DEFUN([gl_FUNC_FCHOWNAT],
 [
+  AC_REQUIRE([gl_FUNC_CHOWN])
   AC_CHECK_FUNC([fchownat],
-    [gl_FUNC_FCHOWNAT_DEREF_BUG([REPLACE_FCHOWNAT=1])],
+    [gl_FUNC_FCHOWNAT_DEREF_BUG([REPLACE_FCHOWNAT=1
+      AC_DEFINE([FCHOWNAT_NOFOLLOW_BUG], [1], [Define to 1 if your
+      platform has fchownat, but it cannot perform lchown tasks.])])],
     [HAVE_FCHOWNAT=0])
+  if test $REPLACE_CHOWN = 1; then
+    REPLACE_FCHOWNAT=1
+  fi
   if test $HAVE_FCHOWNAT = 0 || test $REPLACE_FCHOWNAT = 1; then
     AC_LIBOBJ([fchownat])
   fi