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* [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
@ 2013-02-09 18:59 koraq at xs4all dot nl
2013-02-09 19:00 ` [Bug c++/56268] " koraq at xs4all dot nl
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: koraq at xs4all dot nl @ 2013-02-09 18:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
Bug #: 56268
Summary: [4.7/4.8 Regression] C++11 ICE with boost
multi-precision and boost variant during assignment
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: koraq@xs4all.nl
Created attachment 29402
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29402
Sample code to reproduce the problem
This issue is quite similar to bug 55842.
Compiling the attached sample file leads to an internal compiler error.
The problem only occurs with GCC-4.7 from Debian Unstable 4.7.2-5 and the
upcoming 4.8 from Debian Experimental 4.8-20130127-1. Tested on an amd64
system. (GCC 4.6 works, properly.)
I'm using a checkout of the latest boost release tree.
The command to reproduce the issue is:
gcc-4.8 -std=c++11 -c -I/src/boost/release test.cpp
In file included from /src/boost/release/boost/config.hpp:57:0,
from /src/boost/release/boost/variant/detail/config.hpp:16,
from /src/boost/release/boost/variant/variant.hpp:23,
from /src/boost/release/boost/variant.hpp:17,
from test.cpp:2:
/src/boost/release/boost/type_traits/has_nothrow_copy.hpp: In instantiation of
'const bool
boost::detail::has_nothrow_copy_imp<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >::value':
/src/boost/release/boost/type_traits/has_nothrow_copy.hpp:32:1: required from
'struct
boost::has_nothrow_copy<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >'
/src/boost/release/boost/variant/variant.hpp:1908:17: required from 'void
boost::variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14,
T15, T16, T17, T18, T19>::assigner::internal_visit(const RhsT&, int) [with RhsT
=
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >; T0_ =
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >; T1 = boost::detail::variant::void_; T2 = boost::detail::variant::void_;
T3 = boost::detail::variant::void_; T4 = boost::detail::variant::void_; T5 =
boost::detail::variant::void_; T6 = boost::detail::variant::void_; T7 =
boost::detail::variant::void_; T8 = boost::detail::variant::void_; T9 =
boost::detail::variant::void_; T10 = boost::detail::variant::void_; T11 =
boost::detail::variant::void_; T12 = boost::detail::variant::void_; T13 =
boost::detail::variant::void_; T14 = boost::detail::variant::void_; T15 =
boost::detail::variant::void_; T16 = boost::detail::variant::void_; T17 =
boost::detail::variant::void_; T18 = boost::detail::variant::void_; T19 =
boost::detail::variant::void_]'
/src/boost/release/boost/variant/detail/visitation_impl.hpp:130:9: required
from 'typename Visitor::result_type
boost::detail::variant::visitation_impl_invoke_impl(int, Visitor&, VoidPtrCV,
T*, mpl_::true_) [with Visitor =
boost::variant<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >::assigner; VoidPtrCV = const void*; T =
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >; typename Visitor::result_type = void; mpl_::true_ = mpl_::bool_<true>]'
/src/boost/release/boost/variant/detail/visitation_impl.hpp:173:9: required
from 'typename Visitor::result_type
boost::detail::variant::visitation_impl_invoke(int, Visitor&, VoidPtrCV, T*,
NoBackupFlag, int) [with Visitor =
boost::variant<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >::assigner; VoidPtrCV = const void*; T =
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >; NoBackupFlag =
boost::variant<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >::has_fallback_type_; typename Visitor::result_type = void]'
/src/boost/release/boost/variant/detail/visitation_impl.hpp:256:5: required
from 'typename Visitor::result_type
boost::detail::variant::visitation_impl(int, int, Visitor&, VoidPtrCV,
mpl_::false_, NoBackupFlag, Which*, step0*) [with Which = mpl_::int_<0>; step0
=
boost::detail::variant::visitation_impl_step<boost::mpl::l_iter<boost::mpl::l_item<mpl_::long_<1l>,
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >, boost::mpl::l_end> >, boost::mpl::l_iter<boost::mpl::l_end> >; Visitor =
boost::variant<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >::assigner; VoidPtrCV = const void*; NoBackupFlag =
boost::variant<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >::has_fallback_type_; typename Visitor::result_type = void; mpl_::false_
= mpl_::bool_<false>]'
/src/boost/release/boost/variant/variant.hpp:2326:13: required from 'static
typename Visitor::result_type boost::variant<T0, T1, T2, T3, T4, T5, T6, T7,
T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18,
T19>::internal_apply_visitor_impl(int, int, Visitor&, VoidPtrCV) [with Visitor
=
boost::variant<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >::assigner; VoidPtrCV = const void*; T0_ =
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >; T1 = boost::detail::variant::void_; T2 = boost::detail::variant::void_;
T3 = boost::detail::variant::void_; T4 = boost::detail::variant::void_; T5 =
boost::detail::variant::void_; T6 = boost::detail::variant::void_; T7 =
boost::detail::variant::void_; T8 = boost::detail::variant::void_; T9 =
boost::detail::variant::void_; T10 = boost::detail::variant::void_; T11 =
boost::detail::variant::void_; T12 = boost::detail::variant::void_; T13 =
boost::detail::variant::void_; T14 = boost::detail::variant::void_; T15 =
boost::detail::variant::void_; T16 = boost::detail::variant::void_; T17 =
boost::detail::variant::void_; T18 = boost::detail::variant::void_; T19 =
boost::detail::variant::void_; typename Visitor::result_type = void]'
/src/boost/release/boost/variant/variant.hpp:2348:13: required from 'typename
Visitor::result_type boost::variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9,
T10, T11, T12, T13, T14, T15, T16, T17, T18,
T19>::internal_apply_visitor(Visitor&) const [with Visitor =
boost::variant<boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> > >::assigner; T0_ =
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >; T1 = boost::detail::variant::void_; T2 = boost::detail::variant::void_;
T3 = boost::detail::variant::void_; T4 = boost::detail::variant::void_; T5 =
boost::detail::variant::void_; T6 = boost::detail::variant::void_; T7 =
boost::detail::variant::void_; T8 = boost::detail::variant::void_; T9 =
boost::detail::variant::void_; T10 = boost::detail::variant::void_; T11 =
boost::detail::variant::void_; T12 = boost::detail::variant::void_; T13 =
boost::detail::variant::void_; T14 = boost::detail::variant::void_; T15 =
boost::detail::variant::void_; T16 = boost::detail::variant::void_; T17 =
boost::detail::variant::void_; T18 = boost::detail::variant::void_; T19 =
boost::detail::variant::void_; typename Visitor::result_type = void]'
/src/boost/release/boost/variant/variant.hpp:2091:13: required from 'void
boost::variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14,
T15, T16, T17, T18, T19>::variant_assign(const boost::variant<T0, T1, T2, T3,
T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>&)
[with T0_ =
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >; T1 = boost::detail::variant::void_; T2 = boost::detail::variant::void_;
T3 = boost::detail::variant::void_; T4 = boost::detail::variant::void_; T5 =
boost::detail::variant::void_; T6 = boost::detail::variant::void_; T7 =
boost::detail::variant::void_; T8 = boost::detail::variant::void_; T9 =
boost::detail::variant::void_; T10 = boost::detail::variant::void_; T11 =
boost::detail::variant::void_; T12 = boost::detail::variant::void_; T13 =
boost::detail::variant::void_; T14 = boost::detail::variant::void_; T15 =
boost::detail::variant::void_; T16 = boost::detail::variant::void_; T17 =
boost::detail::variant::void_; T18 = boost::detail::variant::void_; T19 =
boost::detail::variant::void_]'
/src/boost/release/boost/variant/variant.hpp:2175:27: required from
'boost::variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13,
T14, T15, T16, T17, T18, T19>& boost::variant<T0, T1, T2, T3, T4, T5, T6, T7,
T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>::operator=(const
boost::variant<T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14,
T15, T16, T17, T18, T19>&) [with T0_ =
boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<64u,
0u> >; T1 = boost::detail::variant::void_; T2 = boost::detail::variant::void_;
T3 = boost::detail::variant::void_; T4 = boost::detail::variant::void_; T5 =
boost::detail::variant::void_; T6 = boost::detail::variant::void_; T7 =
boost::detail::variant::void_; T8 = boost::detail::variant::void_; T9 =
boost::detail::variant::void_; T10 = boost::detail::variant::void_; T11 =
boost::detail::variant::void_; T12 = boost::detail::variant::void_; T13 =
boost::detail::variant::void_; T14 = boost::detail::variant::void_; T15 =
boost::detail::variant::void_; T16 = boost::detail::variant::void_; T17 =
boost::detail::variant::void_; T18 = boost::detail::variant::void_; T19 =
boost::detail::variant::void_]'
test.cpp:16:4: required from here
/src/boost/release/boost/type_traits/intrinsics.hpp:210:83: internal compiler
error: in nothrow_spec_p, at cp/except.c:1263
# define BOOST_HAS_NOTHROW_COPY(T) ((__has_nothrow_copy(T)
BOOST_INTEL_TT_OPTS) && !is_volatile<T>::value && !is_reference<T>::value)
^
/src/boost/release/boost/type_traits/has_nothrow_copy.hpp:24:40: note: in
expansion of macro 'BOOST_HAS_NOTHROW_COPY'
BOOST_STATIC_CONSTANT(bool, value = BOOST_HAS_NOTHROW_COPY(T));
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccJawS1z.out file, please attach this to
your bugreport.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
@ 2013-02-09 19:00 ` koraq at xs4all dot nl
2013-02-10 12:19 ` rguenth at gcc dot gnu.org
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: koraq at xs4all dot nl @ 2013-02-09 19:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
--- Comment #1 from koraq at xs4all dot nl 2013-02-09 18:59:52 UTC ---
Created attachment 29403
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29403
Preprocessed source
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
2013-02-09 19:00 ` [Bug c++/56268] " koraq at xs4all dot nl
@ 2013-02-10 12:19 ` rguenth at gcc dot gnu.org
2013-02-10 12:42 ` markus at trippelsdorf dot de
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-02-10 12:19 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.7.3
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
2013-02-09 19:00 ` [Bug c++/56268] " koraq at xs4all dot nl
2013-02-10 12:19 ` rguenth at gcc dot gnu.org
@ 2013-02-10 12:42 ` markus at trippelsdorf dot de
2013-02-11 8:37 ` jakub at gcc dot gnu.org
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: markus at trippelsdorf dot de @ 2013-02-10 12:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
--- Comment #2 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2013-02-10 12:42:24 UTC ---
Created attachment 29410
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29410
Somewhat reduced testcase
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
` (2 preceding siblings ...)
2013-02-10 12:42 ` markus at trippelsdorf dot de
@ 2013-02-11 8:37 ` jakub at gcc dot gnu.org
2013-02-11 8:40 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-02-11 8:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-02-11
CC| |jakub at gcc dot gnu.org,
| |jason at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-11 08:36:51 UTC ---
Started with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175073
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
` (3 preceding siblings ...)
2013-02-11 8:37 ` jakub at gcc dot gnu.org
@ 2013-02-11 8:40 ` jakub at gcc dot gnu.org
2013-02-11 15:30 ` jason at gcc dot gnu.org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-02-11 8:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-02-11 08:40:19 UTC ---
Created attachment 29413
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29413
gcc56268.C
Tiny bit more reduced testcase.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
` (4 preceding siblings ...)
2013-02-11 8:40 ` jakub at gcc dot gnu.org
@ 2013-02-11 15:30 ` jason at gcc dot gnu.org
2013-02-11 15:48 ` jason at gcc dot gnu.org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jason at gcc dot gnu.org @ 2013-02-11 15:30 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jason at gcc dot gnu.org
|gnu.org |
Target Milestone|4.7.3 |---
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
` (5 preceding siblings ...)
2013-02-11 15:30 ` jason at gcc dot gnu.org
@ 2013-02-11 15:48 ` jason at gcc dot gnu.org
2013-02-11 16:21 ` jason at gcc dot gnu.org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jason at gcc dot gnu.org @ 2013-02-11 15:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2013-02-11 15:47:56 UTC ---
Author: jason
Date: Mon Feb 11 15:47:46 2013
New Revision: 195943
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195943
Log:
PR c++/56268
* semantics.c (classtype_has_nothrow_assign_or_copy_p): Call
maybe_instantiate_noexcept.
Added:
trunk/gcc/testsuite/g++.dg/ext/has_nothrow_copy-8.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/semantics.c
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
` (6 preceding siblings ...)
2013-02-11 15:48 ` jason at gcc dot gnu.org
@ 2013-02-11 16:21 ` jason at gcc dot gnu.org
2013-02-11 17:29 ` jason at gcc dot gnu.org
2013-02-21 18:56 ` koraq at xs4all dot nl
9 siblings, 0 replies; 11+ messages in thread
From: jason at gcc dot gnu.org @ 2013-02-11 16:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> 2013-02-11 16:21:19 UTC ---
Author: jason
Date: Mon Feb 11 16:21:10 2013
New Revision: 195945
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195945
Log:
PR c++/56268
* semantics.c (classtype_has_nothrow_assign_or_copy_p): Call
maybe_instantiate_noexcept.
Added:
branches/gcc-4_7-branch/gcc/testsuite/g++.dg/ext/has_nothrow_copy-8.C
Modified:
branches/gcc-4_7-branch/gcc/cp/ChangeLog
branches/gcc-4_7-branch/gcc/cp/semantics.c
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
` (7 preceding siblings ...)
2013-02-11 16:21 ` jason at gcc dot gnu.org
@ 2013-02-11 17:29 ` jason at gcc dot gnu.org
2013-02-21 18:56 ` koraq at xs4all dot nl
9 siblings, 0 replies; 11+ messages in thread
From: jason at gcc dot gnu.org @ 2013-02-11 17:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> 2013-02-11 17:29:04 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c++/56268] [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment
2013-02-09 18:59 [Bug c++/56268] New: [4.7/4.8 Regression] C++11 ICE with boost multi-precision and boost variant during assignment koraq at xs4all dot nl
` (8 preceding siblings ...)
2013-02-11 17:29 ` jason at gcc dot gnu.org
@ 2013-02-21 18:56 ` koraq at xs4all dot nl
9 siblings, 0 replies; 11+ messages in thread
From: koraq at xs4all dot nl @ 2013-02-21 18:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56268
--- Comment #8 from koraq at xs4all dot nl 2013-02-21 18:56:06 UTC ---
I can confirm it is fixed in Debian Experimental 4.8-20130217-1. Thanks for the
fix.
^ permalink raw reply [flat|nested] 11+ messages in thread
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