Fixed various gcc warnings especially related to ticket #82 when particular codecs are disabled

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@911 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip/include/pjsua-lib/pjsua.h b/pjsip/include/pjsua-lib/pjsua.h
index 0d7a645..efa21b3 100644
--- a/pjsip/include/pjsua-lib/pjsua.h
+++ b/pjsip/include/pjsua-lib/pjsua.h
@@ -2187,7 +2187,7 @@
     PJSUA_BUDDY_STATUS_UNKNOWN,
 
     /**
-     * Buddy is known to be offline.
+     * Buddy is known to be online.
      */
     PJSUA_BUDDY_STATUS_ONLINE,
 
diff --git a/pjsip/src/pjsua-lib/pjsua_media.c b/pjsip/src/pjsua-lib/pjsua_media.c
index 374608c..c78d505 100644
--- a/pjsip/src/pjsua-lib/pjsua_media.c
+++ b/pjsip/src/pjsua-lib/pjsua_media.c
@@ -40,6 +40,9 @@
     unsigned opt;
     pj_status_t status;
 
+    /* To suppress warning about unused var when all codecs are disabled */
+    PJ_UNUSED_ARG(codec_id);
+
     /* Copy configuration */
     pj_memcpy(&pjsua_var.media_cfg, cfg, sizeof(*cfg));