CGAL users discussion list

["Becksfort, Jared" <>]

You may all recline back from the edge of your seats because I have resolved 
this issue.  I reimaged to 10.9 and reinstalled everything and it seems to be 
working now.  Note that I did not try a simple upgrade in part because I was 
unsure that all system binaries would be rebuilt against libc++.

-----Original Message-----
From: Becksfort, Jared
Sent: Thursday, April 24, 2014 9:59 AM
To: 

Subject: Re: [cgal-discuss] clang++ c++11 and stdlib libc++ on mac

Thank you, Marc and Laurent, very much for replying.  I am attaching the 
verbose build output.

>> That version of clang does not use -stdlib=libc++ by default.
>>Instead, it uses libstd++ (the STL from GNU/g++)Š  Probably the
>>compilation of Boost using b2 has used the default stdlib
>>(libstdc++)...

True, but I specified stdlib=libc++ when building both boost and cgal.
Running oTool -L on the boost libraries (attached) shows that they are built 
with libc++, and I am able to build a boost only program using them with that 
argument (way down the email thread in the first email from me).

-------------------
oTool -L /usr/local/lib/libboost_thread.dylib
/usr/local/lib/libboost_thread.dylib:
        libboost_thread.dylib (compatibility version 0.0.0, current version 
0.0.0)
        libboost_system.dylib (compatibility version 0.0.0, current version 
0.0.0)
        /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version
65.1.0)
        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
version
169.3.0)
-------------------


There are other dependencies than boost for CGAL, of course.  I installed at 
least some of them using homebrew, which would use libstdc++ instead of
libc++ for my version of OsX 10.8 I understand.  But if I check the
libc++ dylibs
in ccmake, they were not built against libstdc++ directly.  I suppose they 
could have indirect dependencies, though.

-------------------
oTool -L /usr/local/lib/libgmp.dylib
/usr/local/lib/libgmp.dylib:
        /usr/local/opt/gmp/lib/libgmp.10.dylib (compatibility version 12.0.0, 
current version 12.3.0)
        /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
version
169.3.0)
-------------------

I wonder if upgrading to 10.9.x will solve some of these problems?  I was 
trying to avoid that if possible because I'm not very confident it will help. 
 It may make homebrew use libc++ when I install new packages though.



Thanks again!
Jared



On 4/24/14 4:39 AM, "Laurent Rineau (CGAL/GeometryFactory)"
<>
 wrote:

>Le Wednesday 23 April 2014 14:08:04 Becksfort, Jared a écrit :
>> Hello,
>>
>> I have had some trouble getting programs using CGAL to run using
>>c++11 on  a mac 10.8.5.
>>
>
>> My clang++ version is
>>
>> -----------
>> Apple LLVM version 4.2 (clang-425.0.28) (based on LLVM 3.2svn)
>> Target: x86_64-apple-darwin12.5.0
>> Thread model: posix
>> -----------
>
>That version of clang does not use -stdlib=libc++ by default. Instead,
>it uses
>libstd++ (the STL from GNU/g++).
>
>> The issue is very likely to be related to the stdlib argument, I think.
>> I
>> built boost using b2 and cgal using cmake with "-std=c++11
>> -stdlib=libc++"
>
>Probably the compilation of Boost using b2 has used the default stdlib
>(libstdc++), and not the libc++ you have used to compile CGAL libraries.
>That
>way, you get libraries that are binary-incompatible. I suggest you
>either recompile Boost libraries with libc++, or recompile CGAL
>libraries with
>libstdc++.
>
>--
>Laurent Rineau, PhD
>R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
>Release Manager of the CGAL Project       http://www.cgal.org/
>
>
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>


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