introduced new logging subsystem using bus:

passive listeners can register on the bus
  active listeners wait for signals actively
  multiplexing allows multiple listeners to receive debug signals
  a lot more...

src/libstrongswan/crypto/signers/signer.h

@@ -49,10 +49,10 @@ enum integrity_algorithm_t {
 	AUTH_AES_XCBC_96 = 5
 };
 
-/** 
- * String mappings for integrity_algorithm_t.
+/**
+ * enum names for integrity_algorithm_t.
  */
-extern mapping_t integrity_algorithm_m[];
+extern enum_name_t *integrity_algorithm_names;
 
 
 typedef struct signer_t signer_t;