[COMMITTED 0/4] four small unrelated bug fixes

[Zack Weinberg]

While working on the AC_LOG_CMD/AC_LOG_FILE project
(see https://lists.gnu.org/archive/html/autoconf/2024-06/msg00009.html)
I found two bugs in the m4sugar layer, plus a missing testsuite
feature and a way to avoid emitting some AS_ECHO-related backward
compatibility logic unless it's actually needed.  They are all
logically independent of the main project and don't need a lot of
testing so I have gone ahead and pushed them to trunk.

Zack Weinberg (4):
  Emit compat shims less often for old AS_ECHO implementation details.
  Add a FLAGS argument to AT_CHECK_M4SUGAR_TEXT.
  Quote separators in foreach.m4 version of m4_joinall.
  Adjust set size correctly in all cases of m4_set_add_all.

 lib/autoconf/general.m4 |  44 +++++++++++++-
 lib/m4sugar/foreach.m4  |  17 +++---
 lib/m4sugar/m4sh.m4     | 106 +++++++++++++++++-----------------
 lib/m4sugar/m4sugar.m4  |  60 ++++++++++++++-----
 tests/m4sh.at           |  73 ++++++++++++-----------
 tests/m4sugar.at        | 124 ++++++++++++++++++++++++++++++++++------
 6 files changed, 292 insertions(+), 132 deletions(-)

-- 
2.44.2