Index: configure.ac
===================================================================
--- configure.ac.orig
+++ configure.ac
@@ -396,7 +396,7 @@ AC_ARG_WITH([libacl],
 if test "x$with_libacl" != xno; then
   CF3_WITH_LIBRARY(libacl, [
     AC_CHECK_LIB(acl, acl_init, [], [if test "x$with_libacl" != xcheck; then AC_MSG_ERROR(Cannot find libacl library); fi])
-    AC_CHECK_HEADERS([acl.h sys/acl.h acl/libacl.h], [], [if test "x$with_libacl" != xcheck; then AC_MSG_ERROR(Cannot find libacl library headers); fi])
+    AC_CHECK_HEADERS([sys/acl.h acl/libacl.h], [], [if test "x$with_libacl" != xcheck; then AC_MSG_ERROR(Cannot find libacl library headers); fi])
   ])
  fi