[sr #110398] autoconf 2.70 breaks coreutils-8.32

URL:
  <https://savannah.gnu.org/support/?110398>

                 Summary: autoconf 2.70 breaks coreutils-8.32
                 Project: Autoconf
            Submitted by: bdubbs
            Submitted on: Wed 09 Dec 2020 11:46:05 AM CST
                Category: None
                Priority: 5 - Normal
                Severity: 3 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

Running 'autoreconf -fiv' on coreutils creates a configure script that fails:

/configure: line 6425: syntax error near unexpected token
`ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89'
./configure: line 6425: `            ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89'

I could not find any reference to this in configure.ac, but the offending part
of configure is:

for ac_arg in '' ac_prog_cc_stdc=c89
             ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"
then :
  ac_cv_prog_cc_c89=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam
  test "x$ac_cv_prog_cc_c89" != "xno" && break
done
-------
I can fix this manually by changing to:

ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
for ac_arg in '' ac_cv_prog_cc_stdc
do
...

but that is not a good solution.

More info is available upon request.




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