Re: Problems finding RocksDBConfig.cmake (Was: sortmerna: "/usr/bin/ld: cannot find -lpthreads")

[Andreas Tille <andreas@an3as.eu>]

Am Tue, Feb 01, 2022 at 11:24:39AM +0100 schrieb Mathieu Malaterre:
> On Tue, Feb 1, 2022 at 11:20 AM Mathieu Malaterre <malat@debian.org> wrote:
> >
> > >
> > > Kind regards and thanks a lot for your patience
> >
> > Odd.
> >
> > Here is what I see:
> >
> > % cat src/sortmerna/CMakeLists.txt
> > [...]
> >                 # the following are all transitive dependencies of
> > smr_objs i.e. no need to link:
> >                 # RapidJSON::RapidJSON ZLIB::ZLIB Threads::Threads (rockdb deps)
> >
> > So there may be an issue in the RocksDbConfig file... in any case I
> > suspect this is acceptable to simply add it manually back:
> >
> >                 # RapidJSON::RapidJSON ZLIB::ZLIB (rockdb deps)
> >                 Threads::Threads
> 
> Very odd. pthread transitive dep should have been pulled:
> 
>  % grep -2 thread /usr/lib/x86_64-linux-gnu/cmake/rocksdb/RocksDBTargets.cmake
> set_target_properties(RocksDB::rocksdb PROPERTIES
>   INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
>   INTERFACE_LINK_LIBRARIES
> "\$<LINK_ONLY:gflags::gflags_shared>;\$<LINK_ONLY:Snappy::snappy>;\$<LINK_ONLY:ZLIB::ZLIB>;/usr/lib/x86_64-linux-gnu/libbz2.so;\$<LINK_ONLY:zstd::zstd>;\$<LINK_ONLY:-lpthread>"
> )
> 
> that goes a bit too far in my understanding of cmake at this point.

Funny anouth the -lpthread is missing in the linker line I've quoted ...

Kind regards
     Andreas. 

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