m4: fix use of log fd vs. file in "configure"

Recent Travis builds are failing when making the distcleancheck
target with:
     ERROR: files left in build directory after distclean:
     ./5

Fix by treating log fd as a file descriptor instead of a file.

Fixes: 7777d53d2f4b ("m4: Add hard requirements for python in "configure"")
Signed-off-by: Lance Richardson <lrichard@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

diff --git a/m4/openvswitch.m4 b/m4/openvswitch.m4
index cbfd7554daeded3f181fedddfacb9652ddfbff7b..48892f9f720e95cfc6ab4718be6fb430c02120e8 100644 (file)
--- a/m4/openvswitch.m4
+++ b/m4/openvswitch.m4
@@ -357,7 +357,7 @@ else:
    AM_CONDITIONAL([HAVE_PYTHON], [test "$HAVE_PYTHON" = yes])
 
    AC_MSG_CHECKING([whether $PYTHON has six library])
-   if ! $PYTHON -c 'import six ; six.moves.range' >AS_MESSAGE_LOG_FD 2>&1; then
+   if ! $PYTHON -c 'import six ; six.moves.range' >&AS_MESSAGE_LOG_FD 2>&1; then
      AC_MSG_ERROR([Missing Python six library or version too old.])
    fi
    AC_MSG_RESULT([yes])])