[PATCH] Fix dependence on computed configure variables.

[Joel E. Denny]

I just pushed this change to Bison to fix dependents of PACKAGE_VERSION.  
Because Bison computes PACKAGE_VERSION using git-version-gen when autoconf 
runs, changes to PACKAGE_VERSION are signaled by changes to configure not 
configure.ac.

Perhaps my change to the package.m4 target rule ought to be reflected in 
the Autotest documentation's recommendation.  Or is there a better way to 
handle this?

>From c53d18b1572c5b8f07cc8a71574257dc4edf3e1d Mon Sep 17 00:00:00 2001
From: Joel E. Denny <address@hidden>
Date: Sun, 27 Jul 2008 00:56:58 -0400
Subject: [PATCH] Fix dependence on computed configure variables.

* doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
$(top_srcdir)/configure.ac so that changes to computed variables, such
as PACKAGE_VERSION, are seen.
* tests/Makefile.am ($(srcdir)/package.m4): Likewise.
---
 ChangeLog         |    8 ++++++++
 doc/Makefile.am   |    4 ++--
 tests/Makefile.am |    2 +-
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 251260d..5f31ec6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2008-07-27  Joel E. Denny  <address@hidden>
+
+       Fix dependence on computed configure variables.
+       * doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
+       $(top_srcdir)/configure.ac so that changes to computed variables, such
+       as PACKAGE_VERSION, are seen.
+       * tests/Makefile.am ($(srcdir)/package.m4): Likewise.
+
 2008-07-20  Joel E. Denny  <address@hidden>
 
        Update copyright dates for recent changes.
diff --git a/doc/Makefile.am b/doc/Makefile.am
index f04e47c..0dd4372 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -53,8 +53,8 @@ dist_man_MANS = $(srcdir)/bison.1
 EXTRA_DIST += $(dist_man_MANS:.1=.x) common.x
 MAINTAINERCLEANFILES += $(dist_man_MANS)
 
-# Depend on configure.ac to get version number changes.
-common_dep = $(top_srcdir)/configure.ac $(srcdir)/common.x
+# Depend on configure to get version number changes.
+common_dep = $(top_srcdir)/configure $(srcdir)/common.x
 srcsrcdir = $(top_srcdir)/bin
 $(srcdir)/bison.1:      $(common_dep) $(top_srcdir)/src/getargs.c
 
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ab15a76..c4a6e72 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -27,7 +27,7 @@ MAINTAINERCLEANFILES = Makefile.in $(TESTSUITE)
 ## package.m4.  ##
 ## ------------ ##
 
-$(srcdir)/package.m4: $(top_srcdir)/configure.ac
+$(srcdir)/package.m4: $(top_srcdir)/configure
        { \
          echo '# Signature of the current package.'; \
          echo 'm4_define([AT_PACKAGE_NAME],      [$(PACKAGE_NAME)])'; \
-- 
1.5.4.3