#
#
# patch "configure.ac"
#  from [713299aeb8b21f4c66733e684a02ab9042ab6f62]
#    to [46e0901df78937b2d44c1c0a356136f946d8954f]
#
============================================================
--- configure.ac	713299aeb8b21f4c66733e684a02ab9042ab6f62
+++ configure.ac	46e0901df78937b2d44c1c0a356136f946d8954f
@@ -9,6 +9,19 @@ AC_LANG([C++])
 AC_CONFIG_FILES([Makefile util/mtnopt])
 AC_LANG([C++])
 
+dnl AM_INIT_AUTOMAKE only provides $(MKDIR_P) in 1.10 and later.
+dnl No, AC_PROG_MKDIR_P does not AC_SUBST its result variable, at least
+dnl not in 2.61.  Comments in programs.m4 suggest that it was meant to
+dnl but not properly implemented.
+if test x"$MKDIR_P" = x; then
+  if test x"$mkdir_p" != x; then
+    MKDIR_P="$mkdir_p"
+  else
+    AC_PROG_MKDIR_P
+  fi
+fi
+AC_SUBST([MKDIR_P])
+
 # Operating system categorization.  Don't add more entries to this
 # case statement if you can possibly avoid it.
 AC_CANONICAL_HOST