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* [Bug c++/55472] New: Linker cannot find lambda symbol
@ 2012-11-26 19:45 walker_643 at yahoo dot com
2012-11-26 19:48 ` [Bug c++/55472] " walker_643 at yahoo dot com
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: walker_643 at yahoo dot com @ 2012-11-26 19:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55472
Bug #: 55472
Summary: Linker cannot find lambda symbol
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: walker_643@yahoo.com
Created attachment 28781
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28781
Test Case
gcc -v:
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.7.2-4precise1' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs
--enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.7 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object
--enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686
--with-tune=generic --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-4precise1)
build command: g++ -Wall -Wextra -std=c++11 -o lambda lambda.cpp
linker output:
/tmp/ccbAcPGU.o: In function `Foo::Foo(std::function<void
()>)::{lambda(Foo*)#1}::operator void (*)(Foo*)() const':
lambda.cpp:(.text._ZZN3FooC1ESt8functionIFvvEEENKUlPS_E_cvPFvS3_EEv[_ZZN3FooC1ESt8functionIFvvEEENKUlPS_E_cvPFvS3_EEv]+0x9):
undefined reference to `Foo::Foo(std::function<void
()>)::{lambda(Foo*)#1}::_FUN(Foo*)'
collect2: error: ld returned 1 exit status
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/55472] Linker cannot find lambda symbol
2012-11-26 19:45 [Bug c++/55472] New: Linker cannot find lambda symbol walker_643 at yahoo dot com
@ 2012-11-26 19:48 ` walker_643 at yahoo dot com
2012-11-26 21:31 ` redi at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: walker_643 at yahoo dot com @ 2012-11-26 19:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55472
--- Comment #1 from walker_643 at yahoo dot com 2012-11-26 19:48:15 UTC ---
I believe the code to be valid C++11, and, indeed it does compile, link, and
run on gcc 4.5 (as seen here http://ideone.com/VvFuMs ), but no GCC versions
4.7 - 4.8 are able to link properly.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/55472] Linker cannot find lambda symbol
2012-11-26 19:45 [Bug c++/55472] New: Linker cannot find lambda symbol walker_643 at yahoo dot com
2012-11-26 19:48 ` [Bug c++/55472] " walker_643 at yahoo dot com
@ 2012-11-26 21:31 ` redi at gcc dot gnu.org
2012-11-26 23:39 ` [Bug c++/55472] [4.7/4.8 Regression] " paolo.carlini at oracle dot com
2012-11-27 11:04 ` paolo.carlini at oracle dot com
3 siblings, 0 replies; 5+ messages in thread
From: redi at gcc dot gnu.org @ 2012-11-26 21:31 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55472
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-11-26
Known to work| |4.6.3
Version|unknown |4.7.2
Blocks| |54367
Ever Confirmed|0 |1
Known to fail| |4.7.2, 4.8.0
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/55472] [4.7/4.8 Regression] Linker cannot find lambda symbol
2012-11-26 19:45 [Bug c++/55472] New: Linker cannot find lambda symbol walker_643 at yahoo dot com
2012-11-26 19:48 ` [Bug c++/55472] " walker_643 at yahoo dot com
2012-11-26 21:31 ` redi at gcc dot gnu.org
@ 2012-11-26 23:39 ` paolo.carlini at oracle dot com
2012-11-27 11:04 ` paolo.carlini at oracle dot com
3 siblings, 0 replies; 5+ messages in thread
From: paolo.carlini at oracle dot com @ 2012-11-26 23:39 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55472
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Linker cannot find lambda |[4.7/4.8 Regression] Linker
|symbol |cannot find lambda symbol
--- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-11-26 23:38:51 UTC ---
Very likely a duplicate of PR55015.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/55472] [4.7/4.8 Regression] Linker cannot find lambda symbol
2012-11-26 19:45 [Bug c++/55472] New: Linker cannot find lambda symbol walker_643 at yahoo dot com
` (2 preceding siblings ...)
2012-11-26 23:39 ` [Bug c++/55472] [4.7/4.8 Regression] " paolo.carlini at oracle dot com
@ 2012-11-27 11:04 ` paolo.carlini at oracle dot com
3 siblings, 0 replies; 5+ messages in thread
From: paolo.carlini at oracle dot com @ 2012-11-27 11:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55472
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |DUPLICATE
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-11-27 11:03:54 UTC ---
Dup.
*** This bug has been marked as a duplicate of bug 55015 ***
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2012-11-27 11:04 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2012-11-26 19:45 [Bug c++/55472] New: Linker cannot find lambda symbol walker_643 at yahoo dot com
2012-11-26 19:48 ` [Bug c++/55472] " walker_643 at yahoo dot com
2012-11-26 21:31 ` redi at gcc dot gnu.org
2012-11-26 23:39 ` [Bug c++/55472] [4.7/4.8 Regression] " paolo.carlini at oracle dot com
2012-11-27 11:04 ` paolo.carlini at oracle dot com
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