compiler shows with -Wall some warnings about unused code etc.

src/map_asn1.h

@@ -1,4 +1,4 @@
-#pragma one
+#pragma once
 
 #include "pEpEngine.h"
 #include "stringlist.h"

src/mime.c

@@ -646,14 +646,14 @@ static PEP_STATUS mime_encode_message_plain(
     struct mailmime * submime = NULL;
     int r;
     PEP_STATUS status;
-    char *subject;
+    //char *subject;
     char *plaintext;
     char *htmltext;
 
     assert(msg);
     assert(result);
 
-    subject = (msg->shortmsg) ? msg->shortmsg : "pEp";
+    //subject = (msg->shortmsg) ? msg->shortmsg : "pEp";  // not used, yet.
     plaintext = (msg->longmsg) ? msg->longmsg : "";
     htmltext = msg->longmsg_formatted;
 
@@ -739,13 +739,13 @@ static PEP_STATUS mime_encode_message_PGP_MIME(
 	struct mailmime_parameter * param;
     int r;
     PEP_STATUS status;
-    char *subject;
+    //char *subject;
     char *plaintext;
 
     assert(msg->attachments && msg->attachments->next &&
             msg->attachments->next->value);
 
-    subject = (msg->shortmsg) ? msg->shortmsg : "pEp";
+    //subject = (msg->shortmsg) ? msg->shortmsg : "pEp"; // not used, yet.
     plaintext = msg->attachments->next->value;
 
     mime = part_multiple_new("multipart/encrypted");

src/pgp_gpg.c

@@ -357,7 +357,7 @@ PEP_STATUS pgp_decrypt_and_verify(
     gpgme_data_type_t dt;
 
     stringlist_t *_keylist = NULL;
-    int i_key = 0;
+    //int i_key = 0;
 
     assert(session);
     assert(ctext);
@@ -1612,6 +1612,8 @@ typedef struct _revoke_state {
     const char *reason_ref;
 } revoke_state;
 
+
+/*** unused?
 static bool isemptystring(const char *str)
 {
     if (str == NULL)
@@ -1624,6 +1626,8 @@ static bool isemptystring(const char *str)
 
     return true;
 }
+***/
+
 
 static gpgme_error_t revoke_fsm(
         void *_handle,