put this back so we can get on with life

acinclude.m4

@@ -0,0 +1,74 @@
+AC_DEFUN([AC_DEFINE_DIR], [
+  prefix_NONE=
+  exec_prefix_NONE=
+  test "x$prefix" = xNONE && prefix_NONE=yes && prefix=$ac_default_prefix
+  test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes && exec_prefix=$prefix
+dnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn
+dnl refers to ${prefix}.  Thus we have to use `eval' twice.
+  eval ac_define_dir="\"[$]$2\""
+  eval ac_define_dir="\"$ac_define_dir\""
+  AC_SUBST($1, "$ac_define_dir")
+  AC_DEFINE_UNQUOTED($1, "$ac_define_dir", [$3])
+  test "$prefix_NONE" && prefix=NONE
+  test "$exec_prefix_NONE" && exec_prefix=NONE
+])
+
+AC_DEFUN([AC_PROG_PERL_VERSION],[dnl
+# Make sure we have perl
+if test -z "$PERL"; then
+AC_CHECK_PROG(PERL,perl,perl)
+fi
+
+# Check if version of Perl is sufficient
+ac_perl_version="$1"
+
+if test "x$PERL" != "x"; then
+  AC_MSG_CHECKING(for perl version greater than or equal to $ac_perl_version)
+  # NB: It would be nice to log the error if there is one, but we cannot rely
+  # on autoconf internals
+  $PERL -e "use $ac_perl_version;" > /dev/null 2>&1
+  if test $? -ne 0; then
+    AC_MSG_RESULT(no);
+    $3
+  else
+    AC_MSG_RESULT(ok);
+    $2
+  fi
+else
+  AC_MSG_WARN(could not find perl)
+fi
+])dnl
+
+AC_DEFUN([AC_PROG_PERL_MODULES],[dnl
+ac_perl_modules="$1"
+# Make sure we have perl
+if test -z "$PERL"; then
+AC_CHECK_PROG(PERL,perl,perl)
+fi
+
+if test "x$PERL" != x; then
+  ac_perl_modules_failed=0
+  for ac_perl_module in $ac_perl_modules; do
+    AC_MSG_CHECKING(for perl module $ac_perl_module)
+
+    # Would be nice to log result here, but can't rely on autoconf internals
+    $PERL "-M$ac_perl_module" -e exit > /dev/null 2>&1
+    if test $? -ne 0; then
+      AC_MSG_RESULT(no);
+      ac_perl_modules_failed=1
+   else
+      AC_MSG_RESULT(ok);
+    fi
+  done
+
+  # Run optional shell commands
+  if test "$ac_perl_modules_failed" = 0; then
+    :
+    $2
+  else
+    :
+    $3
+  fi
+else
+  AC_MSG_WARN(could not find perl)
+fi])dnl