[cfe-dev] Help: compiler's error using -stdlib=libc++ with clang++-3.8
Richard Smith via cfe-dev
cfe-dev at lists.llvm.org
Thu Jul 27 18:44:15 PDT 2017
(adding back cfe-dev)
Looks like your version of libc++ is too old, and you're running into
llvm.org/PR19723 -- upgrading libc++ should solve the problem.
On 27 July 2017 at 00:55, zosrothko <zosrothko at orange.fr> wrote:
> Hi Richard
>
> Below the list of directories containing <cstddef> or <stddef.h> as well
> as the bugcpp.ii
>
> Le 26/07/2017 à 23:13, Richard Smith a écrit :
>
> On 25 July 2017 at 05:27, zosrothko <zosrothko at orange.fr> wrote:
>
>> Hi Richard
>>
>> Sorry to bother you again on this issue but that's quite important for
>> the CI jobs I am running. Here the includes listed with the -v option. Does
>> this ring some bells?
>>
>> TIA
>>
>> 1/ clang++-3.8 -std=c++11 -v -stdlib=libc++ bug.cpp // compile errors
>>
>> clang -cc1 version 3.8.0 based upon LLVM 3.8.0 default target
>> x86_64-unknown-linux-gnu
>> ignoring nonexistent directory "/include"
>> #include "..." search starts here:
>> #include <...> search starts here:
>> /usr/include/c++/v1
>> /usr/local/include
>> /usr/lib/llvm-3.8/bin/../lib/clang/3.8.0/include
>> /usr/include/x86_64-linux-gnu
>> /usr/include
>>
>
> Which of those directories contains a <cstddef> or <stddef.h> header? In
> particular, is there one in /usr/local/include?
>
> fandre at ubuntu-trusty-64:~/clang$ find /usr -type f -name "*ddef*"
> /usr/include/c++/5/cstddef
> /usr/include/c++/4.8/cstddef
> /usr/include/c++/4.9/cstddef
> /usr/include/c++/v1/cstddef
> /usr/include/linux/stddef.h
> /usr/lib/llvm-3.9/lib/clang/3.9.1/include/__stddef_max_align_t.h
> /usr/lib/llvm-3.9/lib/clang/3.9.1/include/stddef.h
> /usr/lib/llvm-3.8/lib/clang/3.8.0/include/__stddef_max_align_t.h
> /usr/lib/llvm-3.8/lib/clang/3.8.0/include/stddef.h
> /usr/lib/perl/5.18.2/stddef.ph
> /usr/lib/perl/5.18.2/linux/stddef.ph
> /usr/lib/llvm-3.6/lib/clang/3.6.0/include/__stddef_max_align_t.h
> /usr/lib/llvm-3.6/lib/clang/3.6.0/include/stddef.h
> /usr/lib/llvm-3.5/lib/clang/3.5.0/include/stddef.h
> /usr/lib/gcc/x86_64-linux-gnu/5/include/stddef.h
> /usr/lib/gcc/x86_64-linux-gnu/4.8/include/stddef.h
> /usr/lib/gcc/x86_64-linux-gnu/4.9/include/stddef.h
> /usr/src/linux-headers-4.4.0-31/include/linux/stddef.h
> /usr/src/linux-headers-4.4.0-31/include/uapi/linux/stddef.h
> /usr/src/linux-headers-4.4.0-83/include/linux/stddef.h
> /usr/src/linux-headers-4.4.0-83/include/uapi/linux/stddef.h
> fandre at ubuntu-trusty-64:~/clang$
>
>
>
> Can you provide preprocessed source for the bug.cpp file:
>
> clang++-3.8 -std=c++11 -E -frewrite-includes -stdlib=libc++ bug.cpp -o
> bug.ii
>
>> End of search list.
>> bug.cpp:56:88: error: 'Header' does not refer to a value
>>
>>
>> 2/ clang++-3.8 -std=c++11 -v bug.cpp // compile OK
>>
>> clang -cc1 version 3.8.0 based upon LLVM 3.8.0 default target
>> x86_64-unknown-linux-gnu
>> ignoring nonexistent directory "/include"
>> ignoring duplicate directory "/usr/bin/../lib/gcc/x86_64-li
>> nux-gnu/5.4.1/../../../../include/x86_64-linux-gnu/c++/5.4.1"
>> #include "..." search starts here:
>> #include <...> search starts here:
>> /usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.1/../../../../include/c++/5.4.1
>> /usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.1/../../../../incl
>> ude/x86_64-linux-gnu/c++/5.4.1
>> /usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.1/../../../../incl
>> ude/c++/5.4.1/backward
>> /usr/local/include
>> /usr/lib/llvm-3.8/bin/../lib/clang/3.8.0/include
>> /usr/include/x86_64-linux-gnu
>> /usr/include
>> End of search list.
>>
>> Le 23/07/2017 à 18:34, Richard Smith a écrit :
>>
>> On 22 Jul 2017 12:52 pm, "zosrothko via cfe-dev" <cfe-dev at lists.llvm.org>
>> wrote:
>>
>>
>>
>> Le 22/07/2017 à 15:07, Richard Smith a écrit :
>>
>> Based on the errors, I would guess that the offsetof macro is not
>> defined. Maybe there's something wrong with your include path?
>>
>> Thanks for answering, but this code compiles fine with this command
>> below, thus I do not understand your point on the include path? (there is
>> no private includes in this code)
>>
>> clang++-3.8 -std=c++11 bug.cpp
>>
>>
>>
>> Include path problems can show up with -stdlib=libc++ because it changes
>> the include path, and because libc++ makes different use of #include_next
>> than libstdc++. Please add -v to the failing command and tell us the
>> include path that is printed.
>>
>> On 22 Jul 2017 3:54 am, "zosrothko via cfe-dev" <cfe-dev at lists.llvm.org>
>> wrote:
>>
>>> Hello CFE list
>>>
>>> Sorry to post again this post, but I am really stacked on this problem.
>>>
>>> I have an issue compiling a small c++ program with clang++-3.8 on Ubuntu
>>> trusty
>>>
>>> Using the joined c++ program bug.cpp,
>>>
>>> - clang++-3.8 -std=c++11 bug.cpp compiles fine while
>>> - clang++-3.8 -std=c++11 -stdlib=libc++ bug.cpp produces invalid
>>> compile errors.
>>>
>>>
>>> What could be the problem and how can it be solved?
>>>
>>> TIA
>>>
>>> fandre at ubuntu-trusty-64:~/clang$ uname -a
>>> Linux ubuntu-trusty-64 4.4.0-83-generic #106~14.04.1-Ubuntu SMP Mon Jun
>>> 26 18:10:19 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
>>> fandre at ubuntu-trusty-64:~/clang$ clang++-3.8 --version
>>> clang version 3.8.0-2ubuntu3~trusty4 (tags/RELEASE_380/final)
>>> Target: x86_64-unknown-linux-gnu
>>> Thread model: posix
>>> InstalledDir: /usr/bin
>>>
>>> Below is the console log
>>>
>>> fandre at ubuntu-trusty-64:~/clang$ clang++-3.8 -std=c++11 bug.cpp
>>> fandre at ubuntu-trusty-64:~/clang$ clang++-3.8 -std=c++11 -stdlib=libc++
>>> bug.cpp
>>> bug.cpp:56:88: error: 'Header' does not refer to a value
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, code) == 0x01)>)> poco_...
>>>
>>> ^
>>> bug.cpp:45:9: note: declared here
>>> struct Header
>>> ^
>>> bug.cpp:56:96: error: use of undeclared identifier 'code'
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, code) == 0x01)>)> poco_...
>>>
>>> ^
>>> bug.cpp:56:111: error: type name requires a specifier or qualifier
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, code) == 0x01)>)> poco_...
>>>
>>> ^
>>> bug.cpp:57:88: error: 'Header' does not refer to a value
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, checksum) == 0x02)>)> p...
>>>
>>> ^
>>> bug.cpp:45:9: note: declared here
>>> struct Header
>>> ^
>>> bug.cpp:57:96: error: use of undeclared identifier 'checksum'
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, checksum) == 0x02)>)> p...
>>>
>>> ^
>>> bug.cpp:57:115: error: type name requires a specifier or qualifier
>>> ...poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, checksum) == 0x02)>)> poco_stati...
>>>
>>> ^
>>> bug.cpp:58:88: error: 'Header' does not refer to a value
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, id) == 0x04)>)> poco_st...
>>>
>>> ^
>>> bug.cpp:45:9: note: declared here
>>> struct Header
>>> ^
>>> bug.cpp:58:96: error: use of undeclared identifier 'id'
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, id) == 0x04)>)> poco_st...
>>>
>>> ^
>>> bug.cpp:58:109: error: type name requires a specifier or qualifier
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, id) == 0x04)>)> poco_st...
>>>
>>> ^
>>> bug.cpp:59:88: error: 'Header' does not refer to a value
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, seq) == 0x06)>)> poco_s...
>>>
>>> ^
>>> bug.cpp:45:9: note: declared here
>>> struct Header
>>> ^
>>> bug.cpp:59:96: error: use of undeclared identifier 'seq'
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, seq) == 0x06)>)> poco_s...
>>>
>>> ^
>>> bug.cpp:59:110: error: type name requires a specifier or qualifier
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, seq) == 0x06)>)> poco_s...
>>>
>>> ^
>>> 12 errors generated.
>>> fandre at ubuntu-trusty-64:~/clang$ cp bug.cpp ../shared
>>> fandre at ubuntu-trusty-64:~/clang$ clang++-3.8 -std=c++11 bug.cpp
>>> fandre at ubuntu-trusty-64:~/clang$ clang++-3.8 -std=c++11 -stdlib=libc++
>>> bug.cpp
>>> bug.cpp:56:88: error: 'Header' does not refer to a value
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, code) == 0x01)>)> poco_...
>>>
>>> ^
>>> bug.cpp:45:9: note: declared here
>>> struct Header
>>> ^
>>> bug.cpp:56:96: error: use of undeclared identifier 'code'
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, code) == 0x01)>)> poco_...
>>>
>>> ^
>>> bug.cpp:56:111: error: type name requires a specifier or qualifier
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, code) == 0x01)>)> poco_...
>>>
>>> ^
>>> bug.cpp:57:88: error: 'Header' does not refer to a value
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, checksum) == 0x02)>)> p...
>>>
>>> ^
>>> bug.cpp:45:9: note: declared here
>>> struct Header
>>> ^
>>> bug.cpp:57:96: error: use of undeclared identifier 'checksum'
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, checksum) == 0x02)>)> p...
>>>
>>> ^
>>> bug.cpp:57:115: error: type name requires a specifier or qualifier
>>> ...poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, checksum) == 0x02)>)> poco_stati...
>>>
>>> ^
>>> bug.cpp:58:88: error: 'Header' does not refer to a value
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, id) == 0x04)>)> poco_st...
>>>
>>> ^
>>> bug.cpp:45:9: note: declared here
>>> struct Header
>>> ^
>>> bug.cpp:58:96: error: use of undeclared identifier 'id'
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, id) == 0x04)>)> poco_st...
>>>
>>> ^
>>> bug.cpp:58:109: error: type name requires a specifier or qualifier
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, id) == 0x04)>)> poco_st...
>>>
>>> ^
>>> bug.cpp:59:88: error: 'Header' does not refer to a value
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, seq) == 0x06)>)> poco_s...
>>>
>>> ^
>>> bug.cpp:45:9: note: declared here
>>> struct Header
>>> ^
>>> bug.cpp:59:96: error: use of undeclared identifier 'seq'
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, seq) == 0x06)>)> poco_s...
>>>
>>> ^
>>> bug.cpp:59:110: error: type name requires a specifier or qualifier
>>> typedef poco_static_assert_test<sizeof(POCO_STATIC_ASSERTION_FAILURE<(bool)
>>> (offsetof(Header, seq) == 0x06)>)> poco_s...
>>>
>>> ^
>>> 12 errors generated.
>>> fandre at ubuntu-trusty-64:~/clang$
>>>
>>>
>>> _______________________________________________
>>> cfe-dev mailing list
>>> cfe-dev at lists.llvm.org
>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>>
>>>
>>
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>>
>>
>>
>>
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