[PATCH] Make copy of <bits/std_abs.h> from GCC 7 [BZ #21573]

[H.J. Lu]

On Tue, Jun 13, 2017 at 1:13 PM, Florian Weimer <fweimer@redhat.com> wrote:
> On 06/13/2017 01:54 PM, H.J. Lu wrote:
>> -    echo "#include <$1>" | $CXX -M -MP -x c++ - | sed -n "/$1:/{s/:\$//;p}"
>> +    echo "#include <$1>" | $CXX -M -MP -x c++ - | sed -n "\,$1:,{s/:\$//;p}"
>>    }
>>    CXX_CSTDLIB_HEADER="$(find_cxx_header cstdlib)"
>> +  # Also make a copy of <bits/std_abs.h> from GCC 7 to prevent it from
>> +  # including /usr/include/stdlib.h.
>> +  CXX_CSTDLIB_HEADER="$CXX_CSTDLIB_HEADER $(find_cxx_header bits/std_abs.h)"
>
> I think the attached patch is needed to suppress the error message if
> the header does not exist.  (Regenerated configure file not shown in the
> patch.)
>

LGTM.

Thanks.


-- 
H.J.