1 files changed, 1 insertions, 0 deletions
diff --git a/defines.h b/defines.h
index d99ef68a..b7dd1d9c 100644
--- a/defines.h
+++ b/defines.h
@@ -106,6 +106,7 @@ enum
 #endif /* MAXPATHLEN */
 
 #ifndef HOST_NAME_MAX
+# include "netdb.h" /* for MAXHOSTNAMELEN */
 # if defined(_POSIX_HOST_NAME_MAX)
 #  define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
 # elif defined(MAXHOSTNAMELEN)