autoupdate problems

[Akim Demaille]

Grrr, se have a problem with GNU sed which uses a definition for \b
which is not what I thought it was.  Or maybe it's a recent update of
my libc which is responsible.

Still, I think rewriting autoupdate in Perl will happen sooner than I
thought.  The problem we have (there is a failure in the test suite
for this) is the following:

/tmp % cat configure.ac                                          nostromo 16:30
AC_INIT
AC_OUTPUT_COMMANDS([echo toto])
AC_OUTPUT
/tmp % cat au26969/quote.sed                                     nostromo 16:32
s!\bAC_OUTPUT\b!_au_changequote([,])&!
s!\bAC_OUTPUT_COMMANDS\b!_au_changequote([,])&!
/tmp % sed -f au26969/quote.sed configure.ac                     nostromo 16:32
AC_INIT
_au_changequote([,])_au_changequote([,])AC_OUTPUT_COMMANDS([echo toto])
_au_changequote([,])AC_OUTPUT


There are two _au_changequote([,]) for AC_OUTPUT_COMMANDS, and of
course this is very bad for M4.

Suggestions?