Re: [gentoo-user] Qt-creator, libQtcSsh and Botan - angst.....

[Matti Nykyri]

> On 07 Feb 2016, at 08:48, Andrew Lowe  wrote:
> 
> Hi all,
>Has anyone managed to build the latest, V3.6, of Qt-creator? I'm
> attempting to do so and am getting a problem related to libQtcSsh.so and
> something called Botan. Reeading in more depth in the error, it appears
> that it can't find basic_string, for example:
> 
> *
> 
> /var/tmp/portage/dev-qt/qt-creator-3.6.0/work/qt-creator-opensource-src-3.6.0/lib64/qtcreator/libQtcSsh.so:
> undefined reference to
> `Botan::User_Interface::User_Interface(std::__cxx11::basic_string std::char_traits, std::allocator > const&)

Well this is a linker error. This means that you are linking without -lbotan 
flag or the installed version of libbotan.so is incompatible with 
qt-creator-3.6.0

You can fix this by compiling qt-creator without out botan or upgrading 
dev-libs/botan to a version required by qt-creator.

If you have the correct version of botan installed then it might be that the 
linker is unable to find libbotan.so

Based on the error messages it is probably a version mismatch, because there is 
only one kind of undefined reference.

-- 
-Matti

Re: [gentoo-user] Qt-creator, libQtcSsh and Botan - angst.....

[Andrew Lowe]

On 02/07/16 17:18, Matti Nykyri wrote:
>> On 07 Feb 2016, at 08:48, Andrew Lowe  wrote:
>>
>> Hi all,
>>Has anyone managed to build the latest, V3.6, of Qt-creator? I'm
>> attempting to do so and am getting a problem related to libQtcSsh.so and
>> something called Botan. Reeading in more depth in the error, it appears
>> that it can't find basic_string, for example:
>>
>> *
>>
>> /var/tmp/portage/dev-qt/qt-creator-3.6.0/work/qt-creator-opensource-src-3.6.0/lib64/qtcreator/libQtcSsh.so:
>> undefined reference to
>> `Botan::User_Interface::User_Interface(std::__cxx11::basic_string> std::char_traits, std::allocator > const&)
> 
> Well this is a linker error. This means that you are linking without -lbotan 
> flag or the installed version of libbotan.so is incompatible with 
> qt-creator-3.6.0
> 
> You can fix this by compiling qt-creator without out botan or upgrading 
> dev-libs/botan to a version required by qt-creator.
> 
> If you have the correct version of botan installed then it might be that the 
> linker is unable to find libbotan.so
> 
> Based on the error messages it is probably a version mismatch, because there 
> is only one kind of undefined reference.
> 

I read a webpost that talked of qt-creator using it's own version of
botan hence I didn't think it would be a linking error, that it would
have the correct stuff "on board". A viewing of the ebuild shows that it
has a USE_SYSTEM_BOTAN=1 so I reinstalled botan, even though I already
had the latest version installed, and hey presto, it built.

Thanks for the comments,
Andrew

[gentoo-user] Qt-creator, libQtcSsh and Botan - angst.....

[Andrew Lowe]

Hi all,
Has anyone managed to build the latest, V3.6, of Qt-creator? I'm
attempting to do so and am getting a problem related to libQtcSsh.so and
something called Botan. Reeading in more depth in the error, it appears
that it can't find basic_string, for example:

*

/var/tmp/portage/dev-qt/qt-creator-3.6.0/work/qt-creator-opensource-src-3.6.0/lib64/qtcreator/libQtcSsh.so:
undefined reference to
`Botan::User_Interface::User_Interface(std::__cxx11::basic_string const&)

*
There are about 15 errors of this type. I've found a mention of this on
gmane for a distro called Alt Linux, but there is no remedy. Has anyone
come across this error and managed to fix it before I spend lots of time
tracking it down?

Regards,
Andrew