Duplicate OPT_ entries in gcc/options.h

[Tijl Coosemans]

On Wed, 8 Jun 2016 19:21:16 -0400 Jung-uk Kim <jkim at FreeBSD.org> wrote:
> On 06/ 8/16 07:09 PM, Dimitry Andric wrote:
>> On 09 Jun 2016, at 00:30, Jung-uk Kim <jkim at FreeBSD.org> wrote:  
>>> On 06/ 8/16 06:16 PM, Dimitry Andric wrote:  
>>>> On 08 Jun 2016, at 23:54, Jung-uk Kim <jkim at FreeBSD.org> wrote:  
>>>>> On 06/ 8/16 05:15 PM, Dimitry Andric wrote:  
>>>>>> On 08 Jun 2016, at 21:11, Gerald Pfeifer <gerald at pfeifer.com> wrote:  
>>>>>>> I got a user report, and could reproduce this, that building
>>>>>>> GCC (lang/gcc, but also current HEAD, so probably pretty much
>>>>>>> any version) with FreeBSD 11 and LANG = en_US.UTF-8 we get
>>>>>>> conflicting entires in $BUILDDIR/gcc/options.h such as  
>>>> ...  
>>>>>> Note that GNU awk does *not* produce a different optionlist file when
>>>>>> used with either LANG=C or LANG=en_US.UTF-8.  
>>>> ...  
>>>>>> So I am assuming that the ARRAY[j-1] > ARRAY[j] comparison works
>>>>>> differently in our awk, depending on the LANG settings.  No idea when
>>>>>> that changed, though, if it changed at all...  
>>>>>
>>>>> This behaviour is known for very long time:
>>>>>
>>>>> https://svnweb.freebsd.org/changeset/base/173731
>>>>>
>>>>> and it is not our fault:
>>>>>
>>>>> https://www.gnu.org/software/gawk/manual/html_node/POSIX-String-Comparison.html  
>>>>
>>>>
>>>> Indeed, so the real question is: why does this only started coming up
>>>> now, if it is known since 2007?  I have been building gcc ports for
>>>> ages, and never ran into this problem, but I also have never actively
>>>> used a persistent LANG environment variable, let alone with UTF-8 in it.
>>>>
>>>> Is this because more people started using UTF-8 recently?  
>>>
>>> We are doing more correct collation now:
>>>
>>> https://svnweb.freebsd.org/changeset/base/290494  
>> 
>> Indeed.  This problem has come up before on the ports mailing list,
>> almost immediately after that commit:
>> 
>> https://lists.freebsd.org/pipermail/freebsd-ports/2015-November/101034.html
>> 
>> Apparently some proposals were made to set LANG and LC_ALL to C globally
>> for port builds, but it was never implemented?  
> 
> tijl proposed it but never implemented because of difficulties to
> exp-run the change, it seems.
> 
> http://docs.freebsd.org/cgi/mid.cgi?20151127145552.GA19655

There are over 300 files in the ports tree that match "[[:<:]]LANG[[:>:]]".
I just don't have the time to go over all of them.