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

shared/sockets.c

@@ -1,4 +1,3 @@
-#include "config.h"
 #include <unistd.h>
 #include <stddef.h>
 #include <stdio.h>
@@ -7,17 +6,21 @@
 #include <stdlib.h>
 #include <sys/types.h>
 #ifndef WINSOCK2
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <arpa/inet.h>
+# include <sys/socket.h>
+# include <sys/un.h>
+# include <netinet/in.h>
+# include <netdb.h>
+# include <arpa/inet.h>
 #else
-#include <winsock2.h>
+# include <winsock2.h>
 #endif
 #include <stdarg.h>
 #include <fcntl.h>
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include "report.h"
 #include "sockets.h"