don't include stdint.h unless HAVE_STDINT_H set
diff --git a/monitor.c b/monitor.c
index 4f9c9fe..bab6ce8 100644
--- a/monitor.c
+++ b/monitor.c
@@ -39,7 +39,9 @@
 #endif
 #include <pwd.h>
 #include <signal.h>
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 #include <stdlib.h>
 #include <string.h>
 #include <stdarg.h>