diff --git a/m4/program_invocation_name.m4 b/m4/program_invocation_name.m4
new file mode 100644
index 0000000..6161f66
--- /dev/null
+++ b/m4/program_invocation_name.m4
@@ -0,0 +1,19 @@
+# We need to be careful to avoid having the reference to
+# program_invocation_name optimized out.  We do that by
+# returning the value.
+
+AC_DEFUN([AC_PROGRAM_INVOCATION_NAME],
+  [AC_CACHE_CHECK(
+    for program_invocation_name,
+    ac_cv_have_program_invocation_name,
+    AC_TRY_LINK([extern char* program_invocation_name;],
+	        [return *program_invocation_name;],
+	        [ac_cv_have_program_invocation_name=yes],
+		[ac_cv_have_program_invocation_name=no])
+   )
+   if test "$ac_cv_have_program_invocation_name" = "yes"; then
+     AC_DEFINE(HAVE_PROGRAM_INVOCATION_NAME, 1,
+               [define if libc has program_invocation_name])
+   fi
+   ])
+