(scan_c_file): Warn about missing `usage' info.

diff --git a/lib-src/make-docfile.c b/lib-src/make-docfile.c
index 99da7b851864114e8f48cae92ad7c118400533f7..124572cb89938a5530346525c24eef11229b22ac 100644 (file)
--- a/lib-src/make-docfile.c
+++ b/lib-src/make-docfile.c
@@ -722,6 +722,9 @@ scan_c_file (filename, mode)
              fprintf (outfile, "\n\n");
              write_c_args (outfile, buf, argbuf, minargs, maxargs);
            }
+         else if (defunflag && maxargs == -1 && !saw_usage)
+           /* The DOC should provide the usage form.  */
+           fprintf (stderr, "Missing `usage' for function `%s'.\n", buf);
        }
     }
  eof: