Move UC_LOG_DESTINATION enum to logging.c, it's

not a public type

src/logging.c

@@ -12,6 +12,18 @@
 #include "ucore/logging.h"
 #include "ucore/utils.h"
 
+/** A destination for the logging messages*/
+enum UC_LOG_DESTINATION {
+    /** Logs using the unix syslog system */
+    UC_LDEST_SYSLOG,
+
+    /** Prints log messages to stderr. */
+    UC_LDEST_STDERR,
+
+    /** Prints log messages to a file */
+    UC_LDEST_FILE,
+};
+
 /** Max suffixes we'll try to apply to a log file when rotating before 
  * giving up
  */