Re: [Boost-users] (was Re: 1.40.0 - 32_64 broken on OS X 10.6 Snow Leopard) (now ppc64 support removed with Xcode 3.2 on Snow Leopard.

Subject: Re: [Boost-users] (was Re: 1.40.0 - 32_64 broken on OS X 10.6 Snow Leopard) (now ppc64 support removed with Xcode 3.2 on Snow Leopard.
From: Damien Hocking (damien_at_[hidden])
Date: 2009-09-06 00:13:48

OSX 10.6 doesn't install on a ppc Apple, I just tried it on my wife's 
G5.  Not supported anymore.

D

JungleCat wrote:
> ok, the problem is that you cannot compile c++ into ppc64 machine code 
> on Snow Leopard because it doesn't ship with a ppc64 bit version of 
> the SDK.
>
> The following is the culprit in darwin.jam
>
> arch-addr-flags darwin OPTIONS : combined : 64 : -arch x86_64 *-arch 
> ppc64 *;
>
> My last post demonstrated the failure but you cannot build through 
> Xcode because it will bail with the same error. My take is that Apple 
> is dropping support for ppc64 but I have no confirmation other than 
> they do not ship the ability to target this anymore.
>
> Julian
>
>
> On Sep 5, 2009, at 3:14 PM, Howard Hinnant wrote:
>
>> On Sep 5, 2009, at 3:32 PM, Vladimir Prus wrote:
>>
>>> Howard Hinnant wrote:
>>>
>>>> On Sep 5, 2009, at 7:34 AM, JungleCat wrote:
>>>>
>>>>> This isn't a compiler problem as I was able to compile OpenSSL into
>>>>> 32_64.
>>>>>
>>>>> The error starts off when:
>>>>>
>>>>> #include <exception>
>>>>>
>>>>> is included from boost, date_time in my case:
>>>>>
>>>>> /usr/include/c++/4.2.1/exception:42:28: error: bits/c++config.h: No
>>>>> such file or directory
>>>>>
>>>>> So:
>>>>>
>>>>> /usr/include/c++/4.2.1/exception
>>>>>
>>>>> Includes: bit/c++config.h
>>>>>
>>>>> However bit/c++config.h doesn't exist, they are rooted in the /usr/
>>>>> include/c++/4.2.1/i686-apple-darwin* /usr/include/c++/4.2.1/powerpc-
>>>>> apple-darwin* and /usr/include/c++/4.2.1/x86_64-apple-darwin* folders.
>>>>>
>>>>> I have not looked into the darwin.jam but I bet it's getting tricked
>>>>> up with the SDK changes to paths, etc.. it's late, zzz..
>>>>
>>>> This is an include path problem.  Unfortunately I don't know anything
>>>> about bjam or the boost build process.  However I do know where you
>>>> can find bits/c++config.h.
>>>>
>>>> For each platform (32/64, 10.4/5/6) there  is a platform-specific
>>>> directory, e.g.:
>>>>
>>>> /usr/include/c++/4.2.1/i686-apple-darwin10/     // 32 bit Snow Leopard
>>>> /usr/include/c++/4.2.1/x86_64-apple-darwin10/   // 64 bit Snow Leopard
>>>>
>>>> Inside of each of these you will find bits/c++config.h.  So you need
>>>> an include path to /usr/include/c++/4.2.1/<correct platform>.
>>>
>>> Do you suggest such a path should be manually passed to compiler? Still
>>> counts as compiler bug by my book :-/
>>
>> I would have to see the command line being used to make any further 
>> guesses as to where the problem lies.  However on 10.6 I'm seeing the 
>> following behavior:
>>
>> $ cat test.cpp
>> #include <iostream>
>>
>> int main()
>> {
>>    std::cout << "Hello World\n";
>> }
>> $ g++ -arch i386 -arch x86_64 test.cpp
>> $ a.out
>> Hello World
>> $ nm -arch all a.out |grep a.out
>> a.out (for architecture i386):
>> a.out (for architecture x86_64):
>>
>> -Howard
>>
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