Hello,
there is a patch which is pending some time. The thread started at:
http://lists.gnu.org/archive/html/bug-autoconf/2005-01/msg00046.html
and Paul approved the patch here:
http://lists.gnu.org/archive/html/bug-autoconf/2005-02/msg00007.html
Today, I incorporated Pauls comments and made some minor variations
to adapt the patch to my recent changes to ac_abs-* computation.
Then I commited the patch, as attached to this mail.
Stepan
2005-05-20 Stepan Kasal <[EMAIL PROTECTED]>
* NEWS: @top_builddir@ is now a dirname, ac_top_builddir will follow.
* lib/autoconf/status.m4 (_AC_SRCDIRS): Rename ...
(ac_top_builddir): ... this ...
(ac_top_build_prefix): ... to this; the old name is also kept, for
backward compatibility.
(ac_top_builddir_sub): New variable, without the trailing slash,
always nonempty.
(_AC_OUTPUT_FILES): s/@top_builddir@/$ac_top_builddir_sub/
* doc/autoconf.texi (Configuration Actions): Rename
ac_top_builddir to ac_top_build_prefix.
* lib/autoconf/autotest.m4 (AC_CONFIG_TESTDIR): Rename
at_top_builddir to at_top_build_prefix.
* lib/autotest/general.m4 (AT_INIT): Likewise.
Index: NEWS
===================================================================
RCS file: /cvsroot/autoconf/autoconf/NEWS,v
retrieving revision 1.340
diff -u -r1.340 NEWS
--- NEWS 14 May 2005 18:33:30 -0000 1.340
+++ NEWS 20 May 2005 07:06:32 -0000
@@ -31,6 +31,11 @@
[EMAIL PROTECTED]@' in a file, you will have to ensure `${datarootdir}' is
defined in this file.
+** @top_builddir@ is now a dir name: it is always nonempty and doesn't have
+ a trailing slash. Similar change will be made to ac_top_builddir in a
+ future release; the old style value, which matches (../)*, is (and will
+ continue to be) available as ac_top_build_prefix.
+
** AC_PROG_CC_C89, AC_PROG_CC_C99
New macros for ISO C99 support. AC_PROG_CC_C89 and AC_PROG_CC_C99
check for ANSI C89 and ISO C99 support respectively.
Index: doc/autoconf.texi
===================================================================
RCS file: /cvsroot/autoconf/autoconf/doc/autoconf.texi,v
retrieving revision 1.898
diff -u -r1.898 autoconf.texi
--- doc/autoconf.texi 14 May 2005 18:33:30 -0000 1.898
+++ doc/autoconf.texi 20 May 2005 07:06:33 -0000
@@ -1970,7 +1970,7 @@
directory is the current build directory.
[EMAIL PROTECTED] ac_top_builddir
[EMAIL PROTECTED] ac_top_build_prefix
The name of the top build directory, assuming that the working
directory is the current build directory.
It can be empty, or else ends with a slash, so that you may concatenate
@@ -1997,8 +1997,8 @@
# Argument of --srcdir
srcdir='../package'
# Reversing deep/dir
-ac_top_builddir='../../'
-# Concatenation of $ac_top_builddir and srcdir
+ac_top_build_prefix='../../'
+# Concatenation of $ac_top_build_prefix and srcdir
ac_top_srcdir='../../../package'
# Concatenation of $ac_top_srcdir and deep/dir
ac_srcdir='../../../package/deep/dir'
Index: lib/autoconf/autotest.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/autotest.m4,v
retrieving revision 1.17
diff -u -r1.17 autotest.m4
--- lib/autoconf/autotest.m4 14 May 2005 07:00:39 -0000 1.17
+++ lib/autoconf/autotest.m4 20 May 2005 07:06:33 -0000
@@ -1,7 +1,7 @@
# This file is part of Autoconf. -*- Autoconf -*-
# Interface with Autotest.
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004 Free Software Foundation, Inc.
+# 2003, 2004, 2005 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -75,7 +75,7 @@
abs_srcdir='$ac_abs_srcdir'
at_top_srcdir='$ac_top_srcdir'
abs_top_srcdir='$ac_abs_top_srcdir'
-at_top_builddir='$ac_top_builddir'
+at_top_build_prefix='$ac_top_build_prefix'
abs_top_builddir='$ac_abs_top_builddir'
AUTOTEST_PATH='m4_default([$2], [$1])'
Index: lib/autoconf/status.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/status.m4,v
retrieving revision 1.56
diff -u -r1.56 status.m4
--- lib/autoconf/status.m4 17 May 2005 09:29:05 -0000 1.56
+++ lib/autoconf/status.m4 20 May 2005 07:06:33 -0000
@@ -126,43 +126,46 @@
# - BUILD-DIR-NAME is `top-build -> build' and `top-src -> src'
# - `$srcdir' is `top-build -> top-src'
#
-# Ouputs:
+# Outputs:
# - `ac_builddir' is `.', for symmetry only.
-# - `ac_top_builddir' is `build -> top_build'.
+# - `ac_top_builddir_sub' is `build -> top_build'.
+# This is used for @[EMAIL PROTECTED]
+# - `ac_top_build_prefix' is `build -> top_build'.
# If not empty, has a trailing slash.
# - `ac_srcdir' is `build -> src'.
# - `ac_top_srcdir' is `build -> top-src'.
-#
# and `ac_abs_builddir' etc., the absolute directory names.
m4_define([_AC_SRCDIRS],
[ac_builddir=.
-if test $1 != .; then
+case $1 in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
ac_dir_suffix=/`echo $1 | sed 's,^\.[[\\/]],,'`
- # A "../" for each directory in $ac_dir_suffix.
- ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[[^\\/]]*,../,g'`
-else
- ac_dir_suffix= ac_top_builddir=
-fi
+ # A ".." for each directory in $ac_dir_suffix.
+ ac_top_builddir_sub=`echo "$ac_dir_suffix" | sed 's,/[[^\\/]]*,/..,g;s,/,,'`
+ case $ac_top_builddir_sub in
+ "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+ *) ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+ esac ;;
+esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
case $srcdir in
.) # No --srcdir option. We are building in place.
ac_srcdir=.
- if test -z "$ac_top_builddir"; then
- ac_top_srcdir=.
- else
- ac_top_srcdir=`expr $ac_top_builddir : ['\(.*[^/]\)']`
- fi
+ ac_top_srcdir=$ac_top_builddir_sub
ac_abs_top_srcdir=$ac_pwd ;;
[[\\/]]* | ?:[[\\/]]* ) # Absolute name.
ac_srcdir=$srcdir$ac_dir_suffix;
ac_top_srcdir=$srcdir
ac_abs_top_srcdir=$srcdir ;;
*) # Relative name.
- ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
- ac_top_srcdir=$ac_top_builddir$srcdir
+ ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_build_prefix$srcdir
ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
@@ -815,7 +818,7 @@
case $srcdir in
[[\\/$]]* | ?:[[\\/]]* ) ac_rel_source=$srcdir/$ac_source ;;
- *) ac_rel_source=$ac_top_builddir$srcdir/$ac_source ;;
+ *) ac_rel_source=$ac_top_build_prefix$srcdir/$ac_source ;;
esac
# Try a symlink, then a hard link, then a copy.
@@ -976,7 +979,7 @@
AC_PROVIDE_IFELSE([AC_PROG_INSTALL],
[ case $INSTALL in
[[\\/$]]* | ?:[[\\/]]* ) ac_INSTALL=$INSTALL ;;
- *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
+ *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
esac
])dnl
@@ -1036,7 +1039,7 @@
s|@abs_top_srcdir@|$ac_abs_top_srcdir|;t t
s|@builddir@|$ac_builddir|;t t
s|@abs_builddir@|$ac_abs_builddir|;t t
-s|@top_builddir@|$ac_top_builddir|;t t
+s|@top_builddir@|$ac_top_builddir_sub|;t t
s|@abs_top_builddir@|$ac_abs_top_builddir|;t t
AC_PROVIDE_IFELSE([AC_PROG_INSTALL], [s,@INSTALL@,$ac_INSTALL,;t t
])dnl
@@ -1178,7 +1181,7 @@
case $cache_file in
[[\\/]]* | ?:[[\\/]]* ) ac_sub_cache_file=$cache_file ;;
*) # Relative name.
- ac_sub_cache_file=$ac_top_builddir$cache_file ;;
+ ac_sub_cache_file=$ac_top_build_prefix$cache_file ;;
esac
AC_MSG_NOTICE([running $ac_sub_configure $ac_sub_configure_args
--cache-file=$ac_sub_cache_file --srcdir=$ac_srcdir])
Index: lib/autotest/general.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autotest/general.m4,v
retrieving revision 1.178
diff -u -r1.178 general.m4
--- lib/autotest/general.m4 17 May 2005 09:29:05 -0000 1.178
+++ lib/autotest/general.m4 20 May 2005 07:06:33 -0000
@@ -182,7 +182,7 @@
# in, but the groups themselves are run in testsuite-dir/group-dir.
if test -n "$at_top_srcdir"; then
builddir=../..
- for at_dir in srcdir top_srcdir top_builddir
+ for at_dir in srcdir top_srcdir top_build_prefix
do
at_val=AS_VAR_GET(at_$at_dir)
AS_VAR_SET($at_dir, $at_val/../..)
@@ -479,12 +479,12 @@
at_path=$at_path$as_dir
;;
* )
- if test -z "$at_top_builddir"; then
+ if test -z "$at_top_build_prefix"; then
# Stand-alone test suite.
at_path=$at_path$as_dir
else
# Embedded test suite.
- at_path=$at_path$at_top_builddir/$as_dir$PATH_SEPARATOR
+ at_path=$at_path$at_top_build_prefix$as_dir$PATH_SEPARATOR
at_path=$at_path$at_top_srcdir/$as_dir
fi
;;
@@ -899,8 +899,8 @@
echo
fi
if test -n "$at_top_srcdir"; then
- AS_BOX([$at_top_builddir/config.log])
- sed 's/^/| /' $at_top_builddir/config.log
+ AS_BOX([${at_top_build_prefix}config.log])
+ sed 's/^/| /' ${at_top_build_prefix}config.log
echo
fi
} >&AS_MESSAGE_LOG_FD
