Hi,

   I have a whole bunch of projects using Pantheios, but one of
them fails to link on Linux with gcc4.6 with the following error:

In function `pantheios::internal::log_dispatch_3(int, unsigned
int, char const*, unsigned int, char const*, unsigned int, char
const*)':
sig_writing_sink.cpp:(.text._ZN9pantheios8internal14log_dispatch_3EijPKcjS2_jS2_[pantheios::internal::log_dispatch_3(int,
unsigned int, char const*, unsigned int, char const*, unsigned
int, char const*)]+0x6d): undefined reference to
`pantheios_log_3_no_test'
collect2: ld returned 1 exit status


I'm linking with:
  libpantheios.1.core.gcc46.mt.a
  libpantheios.1.fe.simple.gcc46.mt.a
  libpantheios.1.be.fprintf.gcc46.mt.a
  libpantheios.1.bec.fprintf.gcc46.mt.a
  libpantheios.1.util.gcc46.mt.a
  libpantheios.1.appl.gcc46.mt.a
  libpantheios.1.core.gcc46.mt.a

Please advise,
Thanks,
Adi

Adi

Glad we sorted it out. Would you mind adding in details of the fix to the Pantheios Help forum, and then posting a link to that in this ng?

Thanks

Matt

"Adi" <uknowme@somewhere.com> wrote in message news:mkmybpvctxqkzhrxyvdi@forum.dlang.org...
> Hi,
>
>    I have a whole bunch of projects using Pantheios, but one of
> them fails to link on Linux with gcc4.6 with the following error:
>
> In function `pantheios::internal::log_dispatch_3(int, unsigned
> int, char const*, unsigned int, char const*, unsigned int, char
> const*)':
> sig_writing_sink.cpp:(.text._ZN9pantheios8internal14log_dispatch_3EijPKcjS2_jS2_[pantheios::internal::log_dispatch_3(int,
> unsigned int, char const*, unsigned int, char const*, unsigned
> int, char const*)]+0x6d): undefined reference to
> `pantheios_log_3_no_test'
> collect2: ld returned 1 exit status
>
>
> I'm linking with:
>   libpantheios.1.core.gcc46.mt.a
>   libpantheios.1.fe.simple.gcc46.mt.a
>   libpantheios.1.be.fprintf.gcc46.mt.a
>   libpantheios.1.bec.fprintf.gcc46.mt.a
>   libpantheios.1.util.gcc46.mt.a
>   libpantheios.1.appl.gcc46.mt.a
>   libpantheios.1.core.gcc46.mt.a
>
> Please advise,
> Thanks,
> Adi

Turns out that in gcc, symbols are only linked forward, so dependent symbols in a given lib will only be resolved from the libs that follow it in the link list. See here <http://stackoverflow.com/questions/45135/linker-order-gcc> for some more details.
By moving other statically linked libs to before Pantheios, the linker succeeded.
Thanks Matt!

ref:
- http://stackoverflow.com/questions/15321970/undefined-reference-to-pantheios-log-3-no-test
- https://sourceforge.net/projects/pantheios/forums/forum/475313/topic/6975104/index/page/1


On Friday, 15 March 2013 at 02:14:34 UTC, Matt Wilson wrote:
> Adi
>
> Glad we sorted it out. Would you mind adding in details of the fix to the
> Pantheios Help forum, and then posting a link to that in this ng?
>
> Thanks
>
> Matt
>
> "Adi" <uknowme@somewhere.com> wrote in message
> news:mkmybpvctxqkzhrxyvdi@forum.dlang.org...
>> Hi,
>>
>>    I have a whole bunch of projects using Pantheios, but one of
>> them fails to link on Linux with gcc4.6 with the following error:
>>
>> In function `pantheios::internal::log_dispatch_3(int, unsigned
>> int, char const*, unsigned int, char const*, unsigned int, char
>> const*)':
>> sig_writing_sink.cpp:(.text._ZN9pantheios8internal14log_dispatch_3EijPKcjS2_jS2_[pantheios::internal::log_dispatch_3(int,
>> unsigned int, char const*, unsigned int, char const*, unsigned
>> int, char const*)]+0x6d): undefined reference to
>> `pantheios_log_3_no_test'
>> collect2: ld returned 1 exit status
>>
>>
>> I'm linking with:
>>   libpantheios.1.core.gcc46.mt.a
>>   libpantheios.1.fe.simple.gcc46.mt.a
>>   libpantheios.1.be.fprintf.gcc46.mt.a
>>   libpantheios.1.bec.fprintf.gcc46.mt.a
>>   libpantheios.1.util.gcc46.mt.a
>>   libpantheios.1.appl.gcc46.mt.a
>>   libpantheios.1.core.gcc46.mt.a
>>
>> Please advise,
>> Thanks,
>> Adi