fixed backward config-file compatibility with kenlm
diff --git a/src/joshua/decoder/JoshuaConfiguration.java b/src/joshua/decoder/JoshuaConfiguration.java
index 2c5e6fe..7182f71 100644
--- a/src/joshua/decoder/JoshuaConfiguration.java
+++ b/src/joshua/decoder/JoshuaConfiguration.java
@@ -351,7 +351,10 @@
 						logger.finest(String.format("floor value for probabilities returned as lexical transaltion probabilities: %s", sa_lex_floor_prob));

 				} else if ("use_srilm".equals(fds[0])) {

 					use_srilm = Boolean.valueOf(fds[1]);

-					System.err.println("WARNING: srilm no longer supported, will use KenLM instead");

+					if (use_srilm) {

+						use_kenlm = true;

+						System.err.println("WARNING: srilm no longer supported, will use KenLM instead");

+					}

 					if (logger.isLoggable(Level.FINEST))

 						logger.finest(String.format("use_srilm: %s", use_srilm));

 				} else if ("use_kenlm".equals(fds[0])) {