Re: [Boost-build] Building fat libraries on OSX

Subject: Re: [Boost-build] Building fat libraries on OSX
From: Raffi Enficiaud (raffi.enficiaud_at_[hidden])
Date: 2016-11-22 07:59:27

Le 22/11/2016 à 10:57, Raffi Enficiaud a écrit :
> Hi all,
>
> Building fat libraries (i386, x64) on OSX does not seem to work as
> expected with b2. I am using XCode 8 / Clang8.
>
> ../b2 toolset=clang address-model=32_64 architecture=x86 cxxflags="-arch
> x86_64 -arch i386 -std=c++11 -stdlib=libc++" linkflags="-stdlib=libc++"
> --prefix=`pwd`/../${build_folder}  --without-log --layout=versioned install
>
> - address-model=32_64 has no effect, I need to add "-arch x86_64 -arch
> i386"
>
> - static libraries are fine:
>   $ lipo -info boost_1_62_0/lib/libboost_thread-clang-darwin42-mt-1_62.a
>   Architectures in the fat file: lib/libboost_thread-
> clang-darwin42-mt-1_62.a are: x86_64 i386
>
> - shared libraries are not:
>   $ lipo -info
> boost_1_62_0/lib/libboost_thread-clang-darwin42-mt-1_62.dylib
>   Architectures in the fat file: lib/libboost_thread-
> clang-darwin42-mt-1_62.dylib are: x86_64
>
>
> Does anyone has experience with this? I have the feeling that setting
> "cxxflags" removes the effect of "address-model=32_64", can anyone confirm?
> how can I build boost with clang and C++11 mode?
>
> Thanks in advance,
> Raffi
>

BTW, this is working when I do not specify the toolset, as mentioned here:
http://stackoverflow.com/questions/19897761/how-to-make-boost-dylibs-universal-i386-x86-64-on-os-x

so the toolset=clang is missing something.

Best,
Raffi