Re: Autoconf 2.54b released

[Akim Demaille]

| Incompatibilities? 
| 
| AFAIS, more than one: The tarball below demonstrates some of them and a
| bug:
| 
| # autoreconf -f
| autoreconf -f
| configure.ac:12: warning: back quotes and double quotes must not be
| escaped in: $as_me:$LINENO: error: invalid value passed to
| --enable-foo=\"a b c\"
| configure.ac:12: warning: back quotes and double quotes must not be
| escaped in: $as_me: error: invalid value passed to --enable-foo=\"a b
| c\"
| configure.ac:12: warning: back quotes and double quotes must not be
| escaped in: $as_me:$LINENO: error: invalid value passed to
| --enable-foo=\"a b c\"
| configure.ac:12: warning: back quotes and double quotes must not be
| escaped in: $as_me: error: invalid value passed to --enable-foo=\"a b
| c\"
| 
| Issues: 
| 1. The error messages are broken ($as_me, $LINENO)

Correct, but I can't fix this easily.

| 2. The topic it complains about is using \" in AC_HELP_STRING. 
| There had been times, where this had been necessary to prevent autoconf
| from removing '"'-quotes in AC_HELP_STRING. 

Could you provide us with some details?  I'm not aware of this issue.

| => incompatibility to previous versions of autoconf-2.5x

Err, it is not incompatible, it's just a warning.  But I hear your
complain, and will delay this issue till another release.

| Worse: Using AM_PROG_LIBTOOL apparently triggers this issue, too.

Yes.  A pity that people don't use -Wobsolete.


| 3. Unlike previous versions of autoconf-2.5x, autoconf-2.54 produces
| automate.cache directories (Instead of autom4te.cache as previous
| versions did). Why this change?

Aaaaaaaaaaarg!  Typo!  Thanks!