make including config.h always depend on HAVE_CONFIG_H; replace printf() by debug()

server/drivers/lcd_sem.c

@@ -20,7 +20,6 @@
  * 
  */
 
-#include <config.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>			  /* for semaphore functions */
@@ -28,6 +27,10 @@
 #include <sys/sem.h>
 #include <errno.h>
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include "lcd_sem.h"
 
 // according to X/OPEN we have to define it ourselves