patch 9.0.1963: Configure script may not detect xattr

Problem:  Configure script may not detect xattr correctly
Solution: include sys/xattr instead of attr/xattr,
          make Test_write_with_xattr_support() test
          xattr feature correctly

This also applies to the Smack security feature, so change the include
and configure script for it as well.

closes: #13229

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
diff --git a/src/auto/configure b/src/auto/configure
index 54c1aa8..9eca87c 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -5279,7 +5279,7 @@
 printf "%s\n" "yes" >&6; }
 fi
 if test "$enable_smack" = "yes"; then
-  ac_fn_c_check_header_compile "$LINENO" "attr/xattr.h" "ac_cv_header_attr_xattr_h" "$ac_includes_default"
+  ac_fn_c_check_header_compile "$LINENO" "sys/xattr.h" "ac_cv_header_attr_xattr_h" "$ac_includes_default"
 if test "x$ac_cv_header_attr_xattr_h" = xyes
 then :
   true
@@ -5434,7 +5434,7 @@
 if test "$enable_xattr" = "yes"; then
   { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 printf "%s\n" "yes" >&6; }
-  ac_fn_c_check_header_compile "$LINENO" "attr/xattr.h" "ac_cv_header_attr_xattr_h" "$ac_includes_default"
+  ac_fn_c_check_header_compile "$LINENO" "sys/xattr.h" "ac_cv_header_attr_xattr_h" "$ac_includes_default"
 if test "x$ac_cv_header_attr_xattr_h" = xyes
 then :
   printf "%s\n" "#define HAVE_XATTR 1" >>confdefs.h