'doc/texinfo.texi' missing @setfilename

[Stefan Husmann]

Hello,

 compilation of texinfo from svn (revision 6597-6599) ends with:

doc/Makefile.am: error: 'doc/texinfo.texi' missing @setfilename

at an very early automake step (automake 1.15).

==> Erstelle Paket: texinfo-svn 6599-1 (So 6. Sep 12:46:42 CEST 2015)
==> Prüfe Laufzeit-Abhängigkeiten...
==> Prüfe Buildtime-Abhängigkeiten...
==> Empfange Quellen...
  -> Aktualisiere das texinfo svn Repo...
Aktualisiere ».«:
Revision 6599.
==> Überprüfe Gültigkeit der Quell-Dateien mit md5sums...
    texinfo ... Übersprungen
==> Entpacke Quellen...
  -> Erstelle Arbeitskopie des trunk svn Repos...
==> Beginne pkgver()...
==> Entferne existierendes $pkgdir/ Verzeichnis...
==> Beginne build()...
Preparing Texinfo development infrastructure:
  ./tp/maintain/regenerate_file_lists.pl
  (cd tp && ./maintain/regenerate_docstr.sh Makefile.docstr)
  (cd tp/tests && ../maintain/regenerate_cmd_tests.sh Makefile.onetst . -base 
'formatting' -long 'sectioning coverage indices nested_formats contents layout' 
-tex_html 'tex_html')
  (cd tp/tests/htmlxref && ../../maintain/regenerate_cmd_tests.sh 
Makefile.onetst htmlxref -base .)
  (cd tp/tests/htmlxref-only_mono && ../../maintain/regenerate_cmd_tests.sh 
Makefile.onetst htmlxref-only_mono -base .)
  (cd tp/tests/htmlxref-only_split && ../../maintain/regenerate_cmd_tests.sh 
Makefile.onetst htmlxref-only_split -base .)
  aclocal -I gnulib/m4 && autoconf && autoheader && automake 
Unescaped left brace in regex is deprecated, passed through in regex; marked by 
<-- HERE in m/\${ <-- HERE ([^ \t=:+{}]+)}/ at /usr/bin/automake line 3936.
doc/Makefile.am: error: 'doc/texinfo.texi' missing @setfilename
==> FEHLER: Ein Fehler geschah in build().
    Breche ab...

Process makepkg exited abnormally with code 2