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-rw-r--r--m4/macros/type_cachefs_args.m423
1 files changed, 23 insertions, 0 deletions
diff --git a/m4/macros/type_cachefs_args.m4 b/m4/macros/type_cachefs_args.m4
new file mode 100644
index 000000000000..556c38888390
--- /dev/null
+++ b/m4/macros/type_cachefs_args.m4
@@ -0,0 +1,23 @@
+dnl ######################################################################
+dnl Find the correct type for CACHEFS mount(2) arguments structure
+AC_DEFUN([AMU_TYPE_CACHEFS_ARGS],
+[
+AC_CACHE_CHECK(for structure type of cachefs mount(2) arguments,
+ac_cv_type_cachefs_args,
+[
+# set to a default value
+ac_cv_type_cachefs_args=notfound
+# look for "struct cachefs_mountargs"
+if test "$ac_cv_type_cachefs_args" = notfound
+then
+AC_TRY_COMPILE_ANYFS(
+[ struct cachefs_mountargs a;
+], ac_cv_type_cachefs_args="struct cachefs_mountargs", ac_cv_type_cachefs_args=notfound)
+fi
+])
+if test "$ac_cv_type_cachefs_args" != notfound
+then
+ AC_DEFINE_UNQUOTED(cachefs_args_t, $ac_cv_type_cachefs_args)
+fi
+])
+dnl ======================================================================