[sr #110879] revert forcing/setting -std=gnu++11 by default (introduced in Autoconf 2.70)

[Jörn Heusipp]

Follow-up Comment #1, sr #110879 (project autoconf):

see
* <https://savannah.gnu.org/support/?110286>
* <https://lists.gnu.org/archive/html/autoconf/2020-07/msg00010.html>
* <https://lists.gnu.org/archive/html/autoconf/2020-07/msg00012.html>
* <https://savannah.gnu.org/support/?110394>
for some roughly related discussions


    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/support/?110879>

_______________________________________________
Message sent via Savannah
https://savannah.gnu.org/