[HAVE_CONFIG_H]: Only include config.h when defined.

diff --git a/lib-src/wakeup.c b/lib-src/wakeup.c
index 9c8838dbc136f8e592abc80409614b4311b85cb5..389519ba1f7f3fa79ffba2298b3497ca0f9cc532 100644 (file)
--- a/lib-src/wakeup.c
+++ b/lib-src/wakeup.c
@@ -1,6 +1,8 @@
 /* Program to produce output at regular intervals.  */
 
+#ifdef HAVE_CONFIG_H
 #include <config.h>
+#endif
 
 #include <stdio.h>
 #include <sys/types.h>