Re: [Boost-build] Question on specifying linker dependencies

Subject: Re: [Boost-build] Question on specifying linker dependencies
From: Kohei Takahashi (flast_at_[hidden])
Date: 2013-05-08 11:35:34

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Hi Gaurav,

I think it is related to https://svn.boost.org/trac/boost/ticket/5820 .

Thanks,
Kohei Takahashi

(2013/05/05 19:46), Gaurav Chakravorty wrote:
> I am not sure if this is the list meant for such questions but here
> goes.
> 
> I am trying to compile a project where there are libraries and
> execs. One of the libraries built by the project "libUtils.a" needs
> to be linked against boost iostreams
> 
> When compiling with toolset gcc it uses a linking command with 
> start-group and end-group, but when compiling with toolset clang b2
> uses a linking command like :
> 
> "clang++" -L"/apps/bzip2/lib" -L"/apps/zlib/lib"   -o 
> "fixfast/bin/clang-linux-3.3/release/link-static/fixfast-mds_MCAST"
>
> 
"fixfast/bin/clang-linux-3.3/release/link-static/fixfastDataD.o"
> "/apps/boost/root/bin.v2/libs/iostreams/build/clang-linux-3.3/release/link-static/libboost_iostreams.a"
> ~/infra_install/lib/libCDef.a -lbz2 -lz  -lpthread
> 
> This produces linking errors like undefined references in boost
> 
> When I reorder it to
> 
> "clang++" -L"/apps/bzip2/lib" -L"/apps/zlib/lib"   -o 
> "fixfast/bin/clang-linux-3.3/release/link-static/fixfast-mds_MCAST"
>
> 
"fixfast/bin/clang-linux-3.3/release/link-static/fixfastDataD.o"
*~/infra_install/lib/libCDef.a*
*"/apps/boost/root/bin.v2/libs/iostreams/build/clang-linux-3.3/release/link-static/libboost_iostreams.a"*
- -lbz2
> -lz  -lpthread i.e bring boost lib to the end it links fine.
> 
> What am I doing wrong ? Any pointers ?
> 
> 
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