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* lib/autoconf/general.m4 (AC_CONFIG_AUX_DIRS): Bring back

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ac_config_guess, ac_config_sub, and ac_configure, since evidently
some other programs unwisely rely on these undocumented vars.
But put in warning comments about them.
Problem reported by Ralf Wildenhues in
<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00068.html>.
* NEWS: Document that these variables are intended to go away.
This commit is contained in:
Paul Eggert 2006-05-21 00:19:42 +00:00
parent 8362e4e987
commit fb2b02422b
3 changed files with 23 additions and 0 deletions
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10
ChangeLog
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@ -1,3 +1,13 @@
2006-05-20 Paul Eggert <eggert@cs.ucla.edu>
* lib/autoconf/general.m4 (AC_CONFIG_AUX_DIRS): Bring back
ac_config_guess, ac_config_sub, and ac_configure, since evidently
some other programs unwisely rely on these undocumented vars.
But put in warning comments about them.
Problem reported by Ralf Wildenhues in
<http://lists.gnu.org/archive/html/autoconf-patches/2006-05/msg00068.html>.
* NEWS: Document that these variables are intended to go away.
2006-05-20 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/autoconf/c.m4 (AC_PROG_CXX_C_O): Require AC_PROG_CXX,

4
NEWS
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@ -1,5 +1,9 @@
* Major changes in Autoconf 2.59d
** ac_config_guess, ac_config_sub, ac_configure
These never-documented variables have been marked with a comment
saying that we intend to remove them in a future release.
** AC_PROG_CC_STDC
Passing 'ac_cv_prog_cc_stdc=no' to 'configure' now sets ac_cv_prog_cc_c99
and ac_cv_prog_cc_c89 to 'no' as well, for backward compatibility with

9
lib/autoconf/general.m4
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@ -1601,6 +1601,15 @@ done
if test -z "$ac_aux_dir"; then
AC_MSG_ERROR([cannot find install-sh or install.sh in $1])
fi
# These three variables are undocumented and unsupported,
# and are intended to be withdrawn in a future Autoconf release.
# They can cause serious problems if a builder's source tree is in a directory
# whose full name contains unusual characters.
ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
AC_PROVIDE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
])# AC_CONFIG_AUX_DIRS