Re: [Boost-build] Compiling 1.34.1 on OpenSUSE 10.3

From: Boris Gubenko (Boris.Gubenko_at_[hidden])
Date: 2007-10-25 22:30:33

Ruediger Berlich wrote:
> I am particularly unsure whether the compiler bug you mention also applies
> to the configuration of the actual library files (rather than only bjam).

Only bjam.

> If so: where would I have to add the compiler flag ?

I'd have added it to boost/tools/jam/src/build.sh :

    gcc)
    BOOST_JAM_CC="gcc -fno-strict-aliasing"
    ;;

HTH,
  Boris

----- Original Message ----- 
From: "Ruediger Berlich" <ruediger.berlich_at_[hidden]>
To: <boost-build_at_[hidden]>
Sent: Thursday, October 25, 2007 2:23 PM
Subject: Re: [Boost-build] Compiling 1.34.1 on OpenSUSE 10.3

> Hi there,
>
> thanks for the hints. Here is how I got the library to compile on OpenSUSE
> 10.3 . Note that I did not have time to check whether everything works yet.
>
> - made sure the python-devel package was installed (has the Python.h file
> and is *not* installed by default!)
> - Ran configure
> - Went to the boost_1_34_1/tools/jam/src directory
> - Ran "./build.sh gcc --debug"
> - From the top directory
> ran "./tools/jam/src/bin.linuxx86.debug/bjam --user-config=user-config.jam"
>
> Probably the "configure" call was'nt even necessary in this case ?
>
> I am particularly unsure whether the compiler bug you mention also applies
> to the configuration of the actual library files (rather than only bjam).
>
> If so: where would I have to add the compiler flag ? BTW, I believe the flag
> is not called --fno-strict-alias , but  --fno-strict-aliasing
>
> Thanks and best Regards,
> Ruediger
>
>
>
> Rene Rivera wrote:
>> Vladimir Prus wrote:
>>> On Wednesday 24 October 2007 18:27:30 Ruediger Berlich wrote:
>>>> OpenSUSE 10.3 is still delivered with Boost 1.33.1 . Hence I've
>>>> downloaded Boost 1.34.1 and tried to compile it. I ran the configure
>>>> script and then make. The resulting bjam immediately dies with an error:
>>>>
>>>> ./tools/jam/src/bin.linuxx86/bjam  --user-config=user-config.jam
>>>> /bin/sh: line 1:  2090
>>>> Speicherzugriffsfehler  ./tools/jam/src/bin.linuxx86/bjam
>>>> --user-config=user-config.jam
>>>>
>>>> "Speicherzugriffsfehler" means "memory access violation".
>>>>
>>>> This is on a Pentium-D dual-core system (4GB main memory) running with a
>>>> 32-bit Linux kernel 2.6.22, g++ 4.2.1 .
>>>
>>> Rene,
>>> does this sound like that alias analysis issue with g++ 4.2?
>>
>> Yep, it's the aliasing problem with gcc-4.2
>>
>>> Have we figured the
>>> exact cause of this crash,
>>
>> Nope, other than it's a compiler bug.
>>
>>> and any approach for working it around?
>>
>> The only work around I know of is to compile a debug version, or with
>> --fno-strict-alias, IIRC.
>>
>
>
> _______________________________________________
> Unsubscribe & other changes: 
> http://lists.boost.org/mailman/listinfo.cgi/boost-build
>