[Ohrrpgce] SVN: teeemcee/8451 Link in stdc++compat.cpp on Unix. We appear to be compatible with gcc si

Ralph Versteegen teeemcee at gmail.com
Sun Feb 26 20:29:51 PST 2017


On 27 February 2017 at 16:45, James Paige <Bob at hamsterrepublic.com> wrote:

> On Sun, Feb 26, 2017 at 6:58 PM, Ralph Versteegen <teeemcee at gmail.com>
> wrote:
>
>> What gcc version do you have?
>>
>> I looked up the runtime_error error on ixrat and found that it was
>> because that constructor was only introduced in gcc 5.0 while jessie
>> apparently has 4.9, but I don't understand why you got this error on ubuntu
>> 16.04. It looks like that ubuntu version might default to gcc 5.3, but it's
>> quite easy to install a different version. I'm using gcc 5.4 myself without
>> trouble, and don't know why 5.3 would have a problem.
>>
>
> ixrat is indeed running gcc 4.9.2
> My Ubuntu 16.04 box (palsink) is running gcc 5.4.0
> I can try installing a different version of gcc and see what happens, but
> I have run out of time for this weekend, so I'll have to try that later.
>

I worked it out, this is due to a difference in ABI which apparently
depends on how the distro maintainers configured gcc. There was a bug on
Mozilla bugzilla which has the explanation and fix:
https://bugzilla.mozilla.org/show_bug.cgi?id=1153109
https://gcc.gnu.org/onlinedocs/libstdc%2B%2B/manual/using_dual_abi.html



>
>
>
>> stdc++compat.cpp doesn't need to be linked in when not using portable=1
>> anyway, but I'd like to see if I can fix this problem before taking the
>> easy way out.
>>
>>
>> On 27 February 2017 at 14:28, James Paige <Bob at hamsterrepublic.com>
>> wrote:
>>
>>> Starting with this revision, I cannot compile at all on my Ubuntu 16.04
>>> box:
>>>
>>> james at breq:~/Dropbox/src/ohr/wip$ scons arch=64
>>> scons: Reading SConscript files ...
>>> Using target: linux  arch: x86_64  gcc: gcc  gcctarget:
>>> x86_64-linux-gnu  fbcversion: 1050
>>> scons: done reading SConscript files.
>>> scons: Building targets ...
>>> Generating ver.txt
>>> fbc -c build/savegame.rbas.bas -o build/savegame.rbas.o -mt -exx -g -O 2
>>> -target linux -arch x86_64 -gen gcc -Wc -Wno-maybe-uninitialized,-fno-omit-frame-pointer
>>> -d DATAFILES='"/usr/share/games/ohrrpgce"' -d IS_GAME -m game
>>> fbc -c build/common.rbas.bas -o build/game-common.rbas.o -mt -exx -g -O
>>> 2 -target linux -arch x86_64 -gen gcc -Wc -Wno-maybe-uninitialized,-fno-omit-frame-pointer
>>> -d DATAFILES='"/usr/share/games/ohrrpgce"' -d IS_GAME -m game
>>> fbc -c build/loading.rbas.bas -o build/game-loading.rbas.o -mt -exx -g
>>> -O 2 -target linux -arch x86_64 -gen gcc -Wc -Wno-maybe-uninitialized,-fno-omit-frame-pointer
>>> -d DATAFILES='"/usr/share/games/ohrrpgce"' -d IS_GAME -m game
>>> g++ -o build/lib/stdc++compat.o -c -O3 -DFBCVERSION=1050 -m64
>>> --std=c++0x -g -Wall -Wno-non-virtual-dtor lib/stdc++compat.cpp
>>> lib/stdc++compat.cpp:46:86: error: no member function
>>> '_S_construct_aux_2' declared in 'std::__cxx11::basic_string<char>'
>>>      template char *string::_S_construct_aux_2(size_type, char,
>>> allocator<char> const&);
>>>
>>> ^
>>> lib/stdc++compat.cpp:48:96: error: no member function
>>> '_S_construct_aux_2' declared in 'std::__cxx11::basic_string<wchar_t>'
>>>      template wchar_t *wstring::_S_construct_aux_2(size_type, wchar_t,
>>> allocator<wchar_t> const&);
>>>
>>>                                     ^
>>> scons: *** [build/lib/stdc++compat.o] Error 1
>>> scons: building terminated because of errors.
>>>
>>>
>>>
>>>
>>>
>>> On Sun, Feb 26, 2017 at 6:08 AM, <subversion at hamsterrepublic.com> wrote:
>>>
>>>> teeemcee
>>>> 2017-02-26 06:08:11 -0800 (Sun, 26 Feb 2017)
>>>> 94
>>>> Link in stdc++compat.cpp on Unix. We appear to be compatible with gcc
>>>> since 3.4 now... really?
>>>> ---
>>>> U   wip/SConscript
>>>> U   wip/lib/stdc++compat.cpp
>>>> U   wip/ohrbuild.py
>>>> _______________________________________________
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>>>> http://lists.motherhamster.org/listinfo.cgi/ohrrpgce-motherhamster.org
>>>>
>>>
>>>
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>>>
>>
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