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Re: [PATCH] rename configure.in to configure.ac


On 06/09/13 16:53, Russ Allbery wrote:
> Mike Frysinger <vapier@gentoo.org> writes:
> 
>> Autoconf has been deprecating configure.in for quite a long time.
>> Rename all our configure.in and preconfigure.in files to .ac.
> 
> This is almost certainly perfectly fine, and I haven't looked at context,
> but I wanted to make sure that someone had noticed it:
> 
>> diff --git a/configure b/configure
>> index 2122583..e9c2827 100755
>> --- a/configure
>> +++ b/configure
>> @@ -5171,7 +5171,7 @@ $as_echo_n "checking whether $AUTOCONF${ACFLAGS:+ }$ACFLAGS works... " >&6; }
>>  if ${libc_cv_autoconf_works+:} false; then :
>>    $as_echo_n "(cached) " >&6
>>  else
>> -    if (cd $srcdir; $AUTOCONF $ACFLAGS configure.in > /dev/null 2>&1); then
>> +    if (cd $srcdir; $AUTOCONF $ACFLAGS configure.ac > /dev/null 2>&1); then
>>      libc_cv_autoconf_works=yes
>>    else
>>      libc_cv_autoconf_works=no
>> @@ -8801,7 +8801,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
>>        ac_sub_configure=$ac_srcdir/configure.gnu
>>      elif test -f "$ac_srcdir/configure"; then
>>        ac_sub_configure=$ac_srcdir/configure
>> -    elif test -f "$ac_srcdir/configure.in"; then
>> +    elif test -f "$ac_srcdir/configure.ac"; then
>>        # This should be Cygnus configure.
>>        ac_sub_configure=$ac_aux_dir/configure
>>      else
> 
> I believe the renaming of configure.in to configure.ac is specific to
> Autoconf.  Cygnus configure is a different (and older) beast; if anyone is
> actually still using Cygnus configure, those files would still be named
> configure.in, not configure.ac.
> 

Correct.  In fact, rerunning autoconf changes thus line back to using
configure.in.

Patch is good for me with that change.

Allan


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