recognize new NetBSD nfs filehandle.

diff --git a/m4/macros/struct_nfs_fh3.m4 b/m4/macros/struct_nfs_fh3.m4
new file mode 100644 (file)
index 0000000..ba37e6d
--- /dev/null
+++ b/m4/macros/struct_nfs_fh3.m4
@@ -0,0 +1,39 @@
+dnl ######################################################################
+dnl Find the structure of an nfs filehandle.
+dnl if found, defined am_nfs_fh3 to it, else leave it undefined.
+dnl THE ORDER OF LOOKUPS IN THIS FILE IS VERY IMPORTANT!!!
+AC_DEFUN([AMU_STRUCT_NFS_FH3],
+[
+AC_CACHE_CHECK(for type/structure of NFS V2 filehandle,
+ac_cv_struct_nfs_fh3,
+[
+# try to compile a program which may have a definition for the type
+dnl need a series of compilations, which will test out every possible type
+dnl such as struct nfs_fh3, XXX - what else?, etc.
+# set to a default value
+ac_cv_struct_nfs_fh3=notfound
+
+# look for "nfs_fh3"
+if test "$ac_cv_struct_nfs_fh3" = notfound
+then
+AC_TRY_COMPILE_NFS(
+[ nfs_fh3 nh;
+], ac_cv_struct_nfs_fh3="nfs_fh3_netbsd20", ac_cv_struct_nfs_fh3=notfound)
+fi
+
+# look for "struct nfs_fh3"
+if test "$ac_cv_struct_nfs_fh3" = notfound
+then
+AC_TRY_COMPILE_NFS(
+[ struct nfs_fh3 nh;
+], ac_cv_struct_nfs_fh3="struct nfs_fh3", ac_cv_struct_nfs_fh3=notfound)
+fi
+
+])
+
+if test "$ac_cv_struct_nfs_fh3" != notfound
+then
+  AC_DEFINE_UNQUOTED(am_nfs_fh3, $ac_cv_struct_nfs_fh3)
+fi
+])
+dnl ======================================================================