From 382c18c20cdcec45b5d21ff25b4a5e0df91a68c4 Mon Sep 17 00:00:00 2001
From: Darren Tucker <dtucker@dtucker.net>
Date: Sun, 3 Nov 2019 00:09:21 +1100
Subject: statfs might be defined in sys/mount.h.

eg on old NetBSDs.
---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index bc28d0748..70019e03b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3817,6 +3817,7 @@ AC_CHECK_TYPES([fsblkcnt_t, fsfilcnt_t], , , [
 ])
 
 AC_CHECK_MEMBERS([struct statfs.f_files, struct statfs.f_flags], [], [], [[
+#include <sys/param.h>
 #include <sys/types.h>
 #ifdef HAVE_SYS_BITYPES_H
 #include <sys/bitypes.h>
@@ -3830,6 +3831,9 @@ AC_CHECK_MEMBERS([struct statfs.f_files, struct statfs.f_flags], [], [], [[
 #ifdef HAVE_SYS_VFS_H
 #include <sys/vfs.h>
 #endif
+#ifdef HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
 ]])
 
 
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