Simplify code to a single vprintf path for curses-less printing

cgminer.c

@@ -164,9 +164,7 @@ static int total_threads;
 static pthread_mutex_t hash_lock;
 static pthread_mutex_t qd_lock;
 static pthread_mutex_t *stgd_lock;
-#ifdef HAVE_CURSES
 static pthread_mutex_t curses_lock;
-#endif
 static pthread_mutex_t ch_lock;
 static pthread_rwlock_t blk_lock;
 
@@ -1562,7 +1560,7 @@ void wlogprint(const char *f, ...)
 #endif
 
 #ifdef HAVE_CURSES
-void log_curses(int prio, const char *f, va_list ap)
+bool log_curses_only(int prio, const char *f, va_list ap)
 {
 	bool high_prio;
 
@@ -1577,8 +1575,9 @@ void log_curses(int prio, const char *f, va_list ap)
 			}
 		}
 		unlock_curses();
-	} else
+		return true;
-		vprintf(f, ap);
+	}
+	return false;
 }
 
 void clear_logwin(void)

logging.c

@@ -25,8 +25,8 @@ static void my_log_curses(__maybe_unused int prio, char *f, va_list ap)
 
 #ifdef HAVE_CURSES
 	extern bool use_curses;
-	if (use_curses)
+	if (use_curses && log_curses_only(prio, f, ap))
-		log_curses(prio, f, ap);
+		;
 	else
 #endif
 	{
@@ -34,11 +34,7 @@ static void my_log_curses(__maybe_unused int prio, char *f, va_list ap)
 
 		strcpy(f + len - 1, "                    \n");
 
-#ifdef HAVE_CURSES
-		log_curses(prio, f, ap);
-#else
 		vprintf(f, ap);
-#endif
 	}
 }
 

miner.h

@@ -797,7 +797,7 @@ extern void switch_pools(struct pool *selected);
 extern void remove_pool(struct pool *pool);
 extern void write_config(FILE *fcfg);
 extern void default_save_file(char *filename);
-extern void log_curses(int prio, const char *f, va_list ap);
+extern bool log_curses_only(int prio, const char *f, va_list ap);
 extern void clear_logwin(void);
 extern bool pool_tclear(struct pool *pool, bool *var);
 extern struct thread_q *tq_new(void);