$NetBSD: patch-configure.ac,v 1.1 2021/11/30 17:13:14 pho Exp $

On NetBSD there's no <fuse/fuse_lowlevel.h>. The file has to be
#include'd as <fuse_lowlevel.h>.

--- configure.ac.orig	2020-04-20 11:28:23.000000000 +0000
+++ configure.ac
@@ -23,6 +23,13 @@ PKG_CHECK_MODULES([FUSE], [fuse >= 2.6],
 AC_SUBST([FUSE_LIBS])
 AC_SUBST([FUSE_CFLAGS])
 
+CPPFLAGS_saved="$CPPFLAGS"
+CPPFLAGS="$CPPFLAGS $FUSE_CFLAGS"
+AC_CHECK_HEADERS([fuse/fuse_lowlevel.h fuse_lowlevel.h])
+AC_CHECK_LIB([fuse], [fuse_mount])
+AC_CHECK_FUNCS([fuse_chan_fd])
+CPPFLAGS="$CPPFLAGS_saved"
+
 
 # Check for libarchive (no pkg-config support)
 AC_CHECK_LIB([archive], [archive_read_new], [ARCHIVE_LIBS=-larchive],