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Re: AIX trunk build fail #3
On Thu, Oct 25, 2012 at 12:20 PM, Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
> On 25 October 2012 14:16, Perry Smith wrote:
>>
>> On Oct 25, 2012, at 3:25 AM, Jonathan Wakely wrote:
>>
>>> On 25 October 2012 02:12, Perry Smith wrote:
>>>>
>>>> This also changes a previous statement I made: while I did build 4.5.2 on a different level of AIX, it was a 6.1 level and has the same LD_LIBRARY_PATH feature. Thus, something has changed in the build process of gcc to include LD_LIBRARY_PATH into the environment before calling xgcc since 4.5.2 was released. At least, that is my current theory.
>>>
>>> I assume the difference is that 4.5.2 wasn't built with the C++
>>> compiler so didn't need libstdc++.so, so it's not a problem if the
>>> wrong libstdc++.so is in your LD_LIBRARY_PATH, because it's not used
>>> anyway.
>>
>> Close but not really. I am building c and c++ in all cases.
>
> That's not what I meant.
>
> Let me rephrase, 4.5.2 isn't built *using* the C++ compiler.
>
>> The difference is that cc1 now (the trunk build) links with libstdc++ which has its different bit versions in different paths.
>>
>> Is it normal for cc1 to link to libstdc++?
>
> For trunk, yes, see the top entry of http://gcc.gnu.org/gcc-4.8/changes.html
>
> That isn't the case for 4.5.2, so as I said, 4.5.2 isn't built with
> the C++ compiler so doesn't link to libstdc++.so so doesn't care if
> you have incompatible versions in your LD_LIBRARY_PATH.
I bootstrap GCC on AIX with GCC 4.6.
- David