[gentoo-user] cmake-3.18.5 build fails

[gentoo-user] cmake-3.18.5 build fails

[Walter Dnes]

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  64-bit Gentoo on a new 12-core machine.  The build fails in the
compile phase.  Switching makeopts from -j4 to -j1 didn't help.  Build
log is attached.

-- 
Walter Dnes <waltdnes@waltdnes.org>
I don't run "desktop environments"; I run useful applications

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Re: [gentoo-user] cmake-3.18.5 build fails

[Jack]

On 2021.02.12 14:49, Walter Dnes wrote:
>   64-bit Gentoo on a new 12-core machine.  The build fails in the  
> compile phase.  Switching makeopts from -j4 to -j1 didn't help.   
> Build log is attached.
The error seems to be at linking:

/usr/lib/gcc/x86_64-pc-linux-gnu/7.5.0/../../../../x86_64-pc-linux-gnu/bin/ld:  
/usr/lib64/libjsoncpp.so: undefined reference to  
`std::__cxx11::basic_ostringstream<char, std::char_traits<char>,  
std::allocator<char> >::basic_ostringstream()@GLIBCXX_3.4.26'

/usr/lib64/libjsoncpp.so belongs to dev-libs/jsoncpp.  cmake depends  
on >=dev-libs/jsoncpp-1.9.2-r2:0=

I have 1.9.4 installed.  (1.9.3 is the only other one I see in  
Portage.)  Is it possible you have an older version, and the dep needs  
to be updated?

Also, might it be related to gcc version?  I'm currently using  
10.2.0-r5 ~amd64.

Jack

Re: [gentoo-user] cmake-3.18.5 build fails

[David Haller]

Hello,

On Fri, 12 Feb 2021, Jack wrote:
>On 2021.02.12 14:49, Walter Dnes wrote:
>>   64-bit Gentoo on a new 12-core machine.  The build fails in the compile
>> phase.  Switching makeopts from -j4 to -j1 didn't help.  Build log is
>> attached.
>The error seems to be at linking:
>
>/usr/lib/gcc/x86_64-pc-linux-gnu/7.5.0/../../../../x86_64-pc-linux-gnu/bin/ld:
>/usr/lib64/libjsoncpp.so: undefined reference to
>`std::__cxx11::basic_ostringstream<char, std::char_traits<char>,
>std::allocator<char> >::basic_ostringstream()@GLIBCXX_3.4.26'
>
>/usr/lib64/libjsoncpp.so belongs to dev-libs/jsoncpp.  cmake depends on
>>=dev-libs/jsoncpp-1.9.2-r2:0=
>
>I have 1.9.4 installed.  (1.9.3 is the only other one I see in Portage.)  Is
>it possible you have an older version, and the dep needs to be updated?

I needs just to be recompiled, I think. With '-std=c++11' or later. 
Search for
    'undefined reference to std::__cxx11::basic_'
(no quotes) on your least untrusted search engine, or better, if your
search-engine supports the 'site:' parameter, for 
    'undefined reference to std::__cxx11::basic_ site:gentoo.org'

AFAIR, there were both at least one news item and tons of
mails/forum-posts about this issue with 'std::__cxx11::basic.*string'
stuff. It's that C++ ABI change for all that string related stuff. It
all basically boils down to just recompile all your C++ libs using
some form of (basic_)string (and all stuff depending on those) using
the new cxx11 ABI. ISTR that was rather well communicated in the news
items and on this ML. And there's stuff on the wiki, e.g.:
https://wiki.gentoo.org/wiki/Upgrading_GCC

ISTR there's more specific stuff, but that's the gist of it. Rebuild
what depends on libstdc++. IIRC:

$ revdep-rebuild -v -p --library  /usr/lib/libstdc++.so.5

(change /usr/lib/ to whatever matches your platform and don't forget
/usr/lib32 if you do multilib ;)

>Also, might it be related to gcc version?  I'm currently using 10.2.0-r5
>~amd64.

Nah. It's libstdc++ ;)

HTH,
-dnh

-- 
The only languages that can comfortably be written with the repertoire of
US-ASCII happen to be Latin, Swahili, Hawaiian and American English without
most typographic frills. It is rumoured that there are more languages in the
world.                                                     -- Roman Czyborra

[gentoo-user] [SOLVED] cmake-3.18.5 build fails

[Walter Dnes]

  My version of oops programming <G>.  I had been playing around with
manual build and trying to get it running, using various versions of
gcc.  I had left an earlier vrsion of gcc selected.  Oops.  Selecting
9.3.0 fixed the problem.  Sorry to have wasted everybody's time.

-- 
Walter Dnes <waltdnes@waltdnes.org>
I don't run "desktop environments"; I run useful applications