(check-texinfo): Disallow `filename' in .texi files.

diff --git a/doc/Makefile.am b/doc/Makefile.am
index c6e8e26..7a63a2f 100644 (file)
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -34,6 +34,8 @@ check-texinfo:
        grep non-zero $(srcdir)/*.texi && fail=1; \
        grep -w NUL $(srcdir)/*.texi && fail=1; \
        grep '\$$@"' $(srcdir)/*.texi && fail=1; \
+       grep -n filename $(srcdir)/*.texi|grep -vE 'setfilename|{filename}' \
+         && fail=1; \
        $(PERL) -e 1 2> /dev/null && { $(PERL) -ne \
          '/\bPOSIX\b/ && !/\@acronym{POSIX}/ && !/^\* / || /{posix}/ and print,exit 1' \
          $(srcdir)/*.texi 2> /dev/null || fail=1; }; \