From 4eb80222606a764b428b327e216c11ad4c17647e Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Fri, 26 Mar 2010 17:11:22 -0600
Subject: [PATCH] build: automate the rerun of autogen.sh

Automate the reuse of autogen.sh, rather than just erroring out.

* cfg.mk (_update_required): Run autogen.sh, rather than just
warning about it.
(_autogen): New target.
---
 cfg.mk | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/cfg.mk b/cfg.mk
index f01dbbfe8e..9b8ee00a70 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -308,9 +308,14 @@ ifeq (0,$(MAKELEVEL))
       stamp="$$($(_submodule_hash) $(_curr_status) 2>/dev/null)";	\
       test "$$stamp" = "$$actual"; echo $$?)
   ifeq (1,$(_update_required))
-    $(error gnulib update required; run ./autogen.sh first)
+    $(info INFO: gnulib update required; running ./autogen.sh first)
+Makefile: _autogen
   endif
 endif
 
+.PHONY: _autogen
+_autogen:
+	$(srcdir)/autogen.sh
+
 # Exempt @...@ uses of these symbols.
 _makefile_at_at_check_exceptions = ' && !/(SCHEMA|SYSCONF)DIR/'