[MERGE] rev. 1779 Replaced AM_CONFIG_HEADER by AC_CONFIG_HEADERS, cf. FS#1243.

[[Imported from SVN: r1789]]

configure.ac

@@ -4,7 +4,7 @@
 DUNE_AC_INIT # gets module version from dune.module file
 AM_INIT_AUTOMAKE
 AC_CONFIG_SRCDIR([dune/istl/istlexception.hh])
-AM_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 
 # check all dune-module stuff
 DUNE_CHECK_ALL