Problem with gcc4.7 and call_once

[Brian D. McGrew]

Major updateŠ

Is ok, I can reinstall if I hosed it all :)

Download gcc-4.8.1.tar.bz2 from gnu and untar into ~/toolchain (no ports
patches added to source).

Configure as follows (shown below). Make check, make install into
/opt/local and it works.  The attached threading test program works.  The
only thing I added that ports didn't is --enable-libstdcxx-threads.

40_ g++-mp-4.8 -v
Using built-in specs.
COLLECT_GCC=g++-mp-4.8
COLLECT_LTO_WRAPPER=/opt/local/libexec/gcc/x86_64-apple-darwin12/4.8.1/lto-
wrapper
Target: x86_64-apple-darwin12
Configured with: ../configure --prefix=/opt/local
--build=x86_64-apple-darwin12
--enable-languages=c,c++,objc,obj-c++,lto,fortran,java
--libdir=/opt/local/lib/gcc48 --includedir=/opt/local/include/gcc48
--infodir=/opt/local/share/info --mandir=/opt/local/share/man
--datarootdir=/opt/local/share/gcc-4.8 --with-local-prefix=/opt/local
--with-system-zlib --disable-nls --program-suffix=-mp-4.8
--with-gxx-include-dir=/opt/local/include/gcc48/c++/ --with-gmp=/opt/local
--with-mpfr=/opt/local --with-mpc=/opt/local --with-ppl=/opt/local
--with-cloog=/opt/local --enable-cloog-backend=isl
--disable-cloog-version-check --enable-stage1-checking --enable-lto
--enable-libstdcxx-time --with-as=/opt/local/bin/as
--with-ld=/opt/local/bin/ld --with-ar=/opt/local/bin/ar
--with-bugurl=https://trac.macports.org/newticket
--with-pkgversion='MacPorts gcc48 4.8.1_1+universal'
--enable-libstdcxx-threads
Thread model: posix
gcc version 4.8.1 (MacPorts gcc48 4.8.1_1+universal)
41_ 

-b




>You'll need to do that at the end of your build.
>
>On Aug 8, 2013, at 14:51, David Barto <DBarto at visionpro.com> wrote:
>
>> Start the install:
>> 501_ sudo port install gcc48 +universal
>> .
>> Snip
>> .
>> --->  Applying patches to libstdcxx
>> --->  Configuring libstdcxx
>> --->  Building libstdcxx
>> ^C
>> 502_ pushd 
>>/opt/local/.../_opt_local_var_macports_sources_rsync.macports.org_release
>>_tarballs_ports_lang_gcc48/libstdcxx/work
>> 
>> 503_ find . -name 'config.log'
>> ./build/build-x86_64-apple-darwin12/fixincludes/config.log
>> ./build/build-x86_64-apple-darwin12/libiberty/config.log
>> ./build/config.log
>> ./build/fixincludes/config.log
>> ./build/gcc/config.log
>> ./build/intl/config.log
>> ./build/libbacktrace/config.log
>> ./build/libcpp/config.log
>> ./build/libdecnumber/config.log
>> ./build/libiberty/config.log
>> 524_ find . -name 'config.log' | xargs egrep _GLIBCXX_HAS_GTHREADS
>> 
>> On Aug 8, 2013, at 2:08 PM, Jeremy Lavergne
>><jeremy at lavergne.gotdns.org> wrote:
>> 
>>> Look inside 'port work ...'
>>> 
>>> "Brian D. McGrew" <brian at visionpro.com> wrote:
>>>> On 8/8/13 2:00 PM, "Jeremy Huddleston Sequoia" <jeremyhu at macports.org>
>>>> wrote:
>>>> 
>>>> 
>>>>> 
>>>>> On Aug 8, 2013, at 13:53, Jeremy Huddleston Sequoia
>>>>> <jeremyhu at macports.org> wrote:
>>>>> 
>>>>>> 
>>>>>> On Aug 8, 2013, at 12:58, David Barto <DBarto at visionpro.com> wrote:
>>>>>> 
>>>>>>> It appears that the following is missing from the configuration for
>>>>>>> libstdc++.
>>>>>>> 
>>>>>>> --enable-libstdcxx-threads
>>>>>>> Enable C++11 threads support. If not explicitly specified, the
>>>>>>> configure process enables it if possible. It defaults to 'off' on
>>>>>>> Solaris 9, where it would break symbol versioning. This option can
>>>>>>> change the library ABI.
>>>>>>> 
>>>>>>> Yes, it changes the ABI, however for std::call_once to work, I
>>>> think
>>>>>>> it is required. I don't think that the configuration process is
>>>> setting
>>>>>>> it by default.
>>>>>> 
>>>>>> What makes you say that?  It looks like it is to me:
>>>>> 
>>>>> ...
>>>>> 
>>>>>> Is your _GLIBCXX_HAS_GTHREADS undefined for some reason?  That
>>>> doesn't
>>>>>> make sense...
>>>>> 
>>>>> 
>>>>> Yeah, it looks fine to me:
>>>>> 
>>>>> libstdc++-v3/config.log:#define _GLIBCXX_HAS_GTHREADS 1
>>>>> 
>>>> 
>>>> Where is the config.log?  Over in
>>>> /opt/local/var/macports/software/libstdc++ all I find is a tar ball of
>>>> the
>>>> library???
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>>> macports-users mailing list
>>>> macports-users at lists.macosforge.org
>>>> https://lists.macosforge.org/mailman/listinfo/macports-users
>>> 
>> 
>

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