Fix compilation with GCC 10 (Fedora 32)

src/kat_server.c

@@ -43,6 +43,9 @@ extern interferometer_t inter;
 extern options_t options;
 extern local_var_t vlocal;
 
+static bbuffer *cq; //!< the main command queue
+static int lastid; //!< the last id???
+
 char largebuffer[STRBUFFLEN]; //!< string for read buffer
 
 /*! send a string to the socket descriptor 

src/kat_server.h

@@ -77,10 +77,6 @@ typedef struct boundedbuffer {
 
 } bbuffer;
 
-
-bbuffer *cq; //!< the main command queue
-int lastid; //!< the last id???
-
 /* from kat_server.c */
 
 void * create_bounded_buffer(int length);