Build with automake-1.13 broken (fix included)

[Torbjorn Granlund]

Marko Lindqvist <cazfi74 at gmail.com> writes:

  Automake-1.13 removed long obsolete AM_CONFIG_HEADER completely (
  http://lists.gnu.org/archive/html/automake/2012-12/msg00038.html ) and errors
  out upon seeing it.
  
  Attached patch replaces it with proper AC_CONFIG_HEADERS.
  
In what way is a build "broken"?

We use 1.11.6 and things still work.

-- 
Torbjörn