Wrap stdint.h includes in ifdefs.
diff --git a/channels.c b/channels.c
index 86c454a..9486c1c 100644
--- a/channels.c
+++ b/channels.c
@@ -57,7 +57,9 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <netdb.h>
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>