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-rw-r--r--include/c.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/c.h b/include/c.h
index 8c8db7332..40d289bf7 100644
--- a/include/c.h
+++ b/include/c.h
@@ -223,6 +223,17 @@ static inline int dirfd(DIR *d)
#endif
/*
+ * Fallback for MAXHOSTNAMELEN
+ */
+#ifndef MAXHOSTNAMELEN
+# ifdef HOST_NAME_MAX
+# define MAXHOSTNAMELEN HOST_NAME_MAX
+# else
+# define MAXHOSTNAMELEN 64
+# endif
+#endif
+
+/*
* Constant strings for usage() functions. For more info see
* Documentation/howto-usage-function.txt and sys-utils/arch.c
*/