*** empty log message ***

1 files changed, 31 insertions, 0 deletions

diff --git a/m4/strnlen.m4 b/m4/strnlen.m4
new file mode 100644
index 000000000..a5bd2ef00
--- /dev/null
+++ b/m4/strnlen.m4
@@ -0,0 +1,31 @@
+#serial 1
+
+# This is already in cvs autoconf -- what will be 2.52g.
+# Define it here for those who aren't on the bleeding edge.
+# FIXME: remove this file once the next autoconf release comes out.
+
+undefine([AC_FUNC_STRNLEN])
+
+# AC_FUNC_STRNLEN
+# --------------
+AC_DEFUN([AC_FUNC_STRNLEN],
+[AC_CACHE_CHECK([for working strnlen], ac_cv_func_strnlen_working,
+[AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[
+#define S "foobar"
+#define S_LEN (sizeof S - 1)
+
+  /* At least one implementation is buggy: that of AIX 4.3.  */
+  int i;
+  for (i = 0; i < S_LEN + 1; ++i)
+    {
+      int result = i <= S_LEN ? i : S_LEN;
+      if (strnlen (S, i) != result)
+	exit (1);
+    }
+  exit (0);
+]])],
+               [ac_cv_func_strnlen_working=yes],
+               [ac_cv_func_strnlen_working=no],
+               [ac_cv_func_strnlen_working=no])])
+test $ac_cv_func_strnlen_working = no && AC_LIBOBJ([strnlen])
+])# AC_FUNC_STRNLEN