From: "Daniel P. Berrange" <berrange(a)redhat.com&gt; The virt-dbus.m4 check for DBus was preserving $LIBS before modifying it. Except it wasn't. It was preserving another copy of $CFLAGS. The result was that after the check completed, $LIBS got polluted with $CFLAGS Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com&gt; --- m4/virt-dbus.m4 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/m4/virt-dbus.m4 b/m4/virt-dbus.m4 index 16cb864..4ef0c82 100644 --- a/m4/virt-dbus.m4 +++ b/m4/virt-dbus.m4 @@ -22,7 +22,7 @@ AC_DEFUN([LIBVIRT_CHECK_DBUS],[ if test "$with_dbus" = "yes" ; then old_CFLAGS="$CFLAGS" - old_LIBS="$CFLAGS" + old_LIBS="$LIBS" CFLAGS="$CFLAGS $DBUS_CFLAGS" LIBS="$LIBS $DBUS_LIBS" AC_CHECK_FUNCS([dbus_watch_get_unix_fd]) -- 1.7.11.7