[Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Mariusz Janiak]

Hi

After successful Xenomai 2.6.2 installation (with Gilles help), I have started building OROCOS 2.6 with xeno support, and once again I went into trouble. This time I am not sure that it is a Xenomai related bug. The problem is following 

from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.hpp:42,
                     from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.cpp:40:
    /usr/xenomai/include/xenomai/posix/stdio.h:30:1: error: ?size_t? does not name a type
    make[2]: *** [rtt/transports/mqueue/CMakeFiles/rtt-transport-mqueue-xenomai_plugin.dir/MQLib.cpp.o] Błąd 1

I have found one thread related to this problem 

http://www.xenomai.org/pipermail/xenomai/2012-September/026143.html

Adding #include <unistd.h> in /usr/xenomai/include/xenomai/posix/stdio.h have solved my problem, but I don't know if it is a suitable solution. 

Mariusz

Re: [Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Gilles Chanteperdrix]

On 12/28/2012 01:26 PM, Mariusz Janiak wrote:

> Hi
> 
> After successful Xenomai 2.6.2 installation (with Gilles help), I have started building OROCOS 2.6 with xeno support, and once again I went into trouble. This time I am not sure that it is a Xenomai related bug. The problem is following 
> 
> from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.hpp:42,
>                      from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.cpp:40:
>     /usr/xenomai/include/xenomai/posix/stdio.h:30:1: error: ?size_t? does not name a type
>     make[2]: *** [rtt/transports/mqueue/CMakeFiles/rtt-transport-mqueue-xenomai_plugin.dir/MQLib.cpp.o] Błąd 1
> 
> I have found one thread related to this problem 
> 
> http://www.xenomai.org/pipermail/xenomai/2012-September/026143.html
> 
> Adding #include <unistd.h> in /usr/xenomai/include/xenomai/posix/stdio.h have solved my problem, but I don't know if it is a suitable solution. 


Hi Mariusz,

thanks for the report. Could you tell me which distribution and which
version you are using? We are certainly not going to include unistd.h in
stdio.h, the fact that size_t is not defined indicates that something
else is wrong as there are services supposedly defined in stdio.h which
use size_t.

Regards.

> 
> Mariusz
> 
> 
> 
> 
> 
> _______________________________________________
> Xenomai mailing list
> Xenomai@xenomai.org
> http://www.xenomai.org/mailman/listinfo/xenomai
> 



-- 
                                                                Gilles.

Re: [Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Mariusz Janiak]

Dnia Piątek, 28 Grudnia 2012 16:01 Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> napisał(a) 
> On 12/28/2012 01:26 PM, Mariusz Janiak wrote:
> 
> > Hi
> > 
> > After successful Xenomai 2.6.2 installation (with Gilles help), I have started building OROCOS 2.6 with xeno support, and once again I went into trouble. This time I am not sure that it is a Xenomai related bug. The problem is following 
> > 
> > from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.hpp:42,
> >                      from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.cpp:40:
> >     /usr/xenomai/include/xenomai/posix/stdio.h:30:1: error: ?size_t? does not name a type
> >     make[2]: *** [rtt/transports/mqueue/CMakeFiles/rtt-transport-mqueue-xenomai_plugin.dir/MQLib.cpp.o] Błąd 1
> > 
> > I have found one thread related to this problem 
> > 
> > http://www.xenomai.org/pipermail/xenomai/2012-September/026143.html
> > 
> > Adding #include <unistd.h> in /usr/xenomai/include/xenomai/posix/stdio.h have solved my problem, but I don't know if it is a suitable solution. 
> 
> 
> Hi Mariusz,
> 
> thanks for the report. Could you tell me which distribution and which
> version you are using? We are certainly not going to include unistd.h in
> stdio.h, the fact that size_t is not defined indicates that something
> else is wrong as there are services supposedly defined in stdio.h which
> use size_t.
 
I have Ubuntu 12.10 x86_64, gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1).

Mariusz

Re: [Xenomai] posix/stdio.h error: ?size_t? does not name a type

[hauptmech]

On 12/28/2012 04:01 PM, Gilles Chanteperdrix wrote:
> On 12/28/2012 01:26 PM, Mariusz Janiak wrote:
>
>> Hi
>>
>> After successful Xenomai 2.6.2 installation (with Gilles help), I have started building OROCOS 2.6 with xeno support, and once again I went into trouble. This time I am not sure that it is a Xenomai related bug. The problem is following
>>
>> from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.hpp:42,
>>                       from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.cpp:40:
>>      /usr/xenomai/include/xenomai/posix/stdio.h:30:1: error: ?size_t? does not name a type
>>      make[2]: *** [rtt/transports/mqueue/CMakeFiles/rtt-transport-mqueue-xenomai_plugin.dir/MQLib.cpp.o] Błąd 1
>>
>> I have found one thread related to this problem
>>
>> http://www.xenomai.org/pipermail/xenomai/2012-September/026143.html
>>
>> Adding #include <unistd.h> in /usr/xenomai/include/xenomai/posix/stdio.h have solved my problem, but I don't know if it is a suitable solution.
>
> Hi Mariusz,
>
> thanks for the report. Could you tell me which distribution and which
> version you are using? We are certainly not going to include unistd.h in
> stdio.h, the fact that size_t is not defined indicates that something
> else is wrong as there are services supposedly defined in stdio.h which
> use size_t.
>
> Regards.
http://gcc.gnu.org/gcc-4.7/porting_to.html (search for unistd.h)

The correct fix is probably to add unistd.h to MQLib.hpp (and other 
include files that are missing it)

>
>> Mariusz
>>
>>
>>
>>
>>
>> _______________________________________________
>> Xenomai mailing list
>> Xenomai@xenomai.org
>> http://www.xenomai.org/mailman/listinfo/xenomai
>>
>
>

Re: [Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Gilles Chanteperdrix]

On 12/28/2012 04:33 PM, hauptmech wrote:

> On 12/28/2012 04:01 PM, Gilles Chanteperdrix wrote:
>> On 12/28/2012 01:26 PM, Mariusz Janiak wrote:
>>
>>> Hi
>>>
>>> After successful Xenomai 2.6.2 installation (with Gilles help), I have started building OROCOS 2.6 with xeno support, and once again I went into trouble. This time I am not sure that it is a Xenomai related bug. The problem is following
>>>
>>> from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.hpp:42,
>>>                       from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.cpp:40:
>>>      /usr/xenomai/include/xenomai/posix/stdio.h:30:1: error: ?size_t? does not name a type
>>>      make[2]: *** [rtt/transports/mqueue/CMakeFiles/rtt-transport-mqueue-xenomai_plugin.dir/MQLib.cpp.o] Błąd 1
>>>
>>> I have found one thread related to this problem
>>>
>>> http://www.xenomai.org/pipermail/xenomai/2012-September/026143.html
>>>
>>> Adding #include <unistd.h> in /usr/xenomai/include/xenomai/posix/stdio.h have solved my problem, but I don't know if it is a suitable solution.
>>
>> Hi Mariusz,
>>
>> thanks for the report. Could you tell me which distribution and which
>> version you are using? We are certainly not going to include unistd.h in
>> stdio.h, the fact that size_t is not defined indicates that something
>> else is wrong as there are services supposedly defined in stdio.h which
>> use size_t.
>>
>> Regards.
> http://gcc.gnu.org/gcc-4.7/porting_to.html (search for unistd.h)
> 
> The correct fix is probably to add unistd.h to MQLib.hpp (and other 
> include files that are missing it)


This does not look like the same issue: using size_t is valid in stdio.h
without including unistd.h

I will install the same distribution as Mariusz to try and reproduce the
issue.

-- 
                                                                Gilles.

Re: [Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Jeff Webb]

On 12/28/2012 10:58 AM, Jeff Webb wrote:
> On 12/28/2012 09:44 AM, Gilles Chanteperdrix wrote:
>> On 12/28/2012 04:33 PM, hauptmech wrote:
>>
>>> On 12/28/2012 04:01 PM, Gilles Chanteperdrix wrote:
>>>> On 12/28/2012 01:26 PM, Mariusz Janiak wrote:
>>>>
>>>>> Hi
>>>>>
>>>>> After successful Xenomai 2.6.2 installation (with Gilles help), I have started building OROCOS 2.6 with xeno support, and once again I went into trouble. This time I am not sure that it is a Xenomai related bug. The problem is following
>>>>>
>>>>> from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.hpp:42,
>>>>>                        from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.cpp:40:
>>>>>       /usr/xenomai/include/xenomai/posix/stdio.h:30:1: error: ?size_t? does not name a type
>>>>>       make[2]: *** [rtt/transports/mqueue/CMakeFiles/rtt-transport-mqueue-xenomai_plugin.dir/MQLib.cpp.o] Błąd 1
>>>>>
>>>>> I have found one thread related to this problem
>>>>>
>>>>> http://www.xenomai.org/pipermail/xenomai/2012-September/026143.html
>>>>>
>>>>> Adding #include <unistd.h> in /usr/xenomai/include/xenomai/posix/stdio.h have solved my problem, but I don't know if it is a suitable solution.
>>>>
>>>> Hi Mariusz,
>>>>
>>>> thanks for the report. Could you tell me which distribution and which
>>>> version you are using? We are certainly not going to include unistd.h in
>>>> stdio.h, the fact that size_t is not defined indicates that something
>>>> else is wrong as there are services supposedly defined in stdio.h which
>>>> use size_t.
>>>>
>>>> Regards.
>>> http://gcc.gnu.org/gcc-4.7/porting_to.html (search for unistd.h)
>>>
>>> The correct fix is probably to add unistd.h to MQLib.hpp (and other
>>> include files that are missing it)
>>
>>
>> This does not look like the same issue: using size_t is valid in stdio.h
>> without including unistd.h
>>
>> I will install the same distribution as Mariusz to try and reproduce the
>> issue.
>>
  
I ran into a similar issue under Ubuntu 12.04 and Xenomai-2.6.1+.  I was also using C++, so maybe it isn't a problem in C...

-Jeff
  

Re: [Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Jeff Webb]

On 12/28/2012 11:02 AM, Jeff Webb wrote:
> On 12/28/2012 10:58 AM, Jeff Webb wrote:
>> On 12/28/2012 09:44 AM, Gilles Chanteperdrix wrote:
>>> On 12/28/2012 04:33 PM, hauptmech wrote:
>>>
>>>> On 12/28/2012 04:01 PM, Gilles Chanteperdrix wrote:
>>>>> On 12/28/2012 01:26 PM, Mariusz Janiak wrote:
>>>>>
>>>>>> Hi
>>>>>>
>>>>>> After successful Xenomai 2.6.2 installation (with Gilles help), I have started building OROCOS 2.6 with xeno support, and once again I went into trouble. This time I am not sure that it is a Xenomai related bug. The problem is following
>>>>>>
>>>>>> from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.hpp:42,
>>>>>>                        from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.cpp:40:
>>>>>>       /usr/xenomai/include/xenomai/posix/stdio.h:30:1: error: ?size_t? does not name a type
>>>>>>       make[2]: *** [rtt/transports/mqueue/CMakeFiles/rtt-transport-mqueue-xenomai_plugin.dir/MQLib.cpp.o] Błąd 1
>>>>>>
>>>>>> I have found one thread related to this problem
>>>>>>
>>>>>> http://www.xenomai.org/pipermail/xenomai/2012-September/026143.html
>>>>>>
>>>>>> Adding #include <unistd.h> in /usr/xenomai/include/xenomai/posix/stdio.h have solved my problem, but I don't know if it is a suitable solution.
>>>>>
>>>>> Hi Mariusz,
>>>>>
>>>>> thanks for the report. Could you tell me which distribution and which
>>>>> version you are using? We are certainly not going to include unistd.h in
>>>>> stdio.h, the fact that size_t is not defined indicates that something
>>>>> else is wrong as there are services supposedly defined in stdio.h which
>>>>> use size_t.
>>>>>
>>>>> Regards.
>>>> http://gcc.gnu.org/gcc-4.7/porting_to.html (search for unistd.h)
>>>>
>>>> The correct fix is probably to add unistd.h to MQLib.hpp (and other
>>>> include files that are missing it)
>>>
>>>
>>> This does not look like the same issue: using size_t is valid in stdio.h
>>> without including unistd.h
>>>
>>> I will install the same distribution as Mariusz to try and reproduce the
>>> issue.
>>>
>
> I ran into a similar issue under Ubuntu 12.04 and Xenomai-2.6.1+.  I was also using C++, so maybe it isn't a problem in C...
>
> -Jeff
>

Here's some more information.  This C++ program fails to compile under Xenomai because ‘size_t’ does not name a type.  It compiles fine without Xenomai:

#include <iostream>

int main()
{
     size_t t = 1;
     t += 1;
     return 0;
}

But this one compiles:

#include <cstdio>
#include <iostream>

int main()
{
     size_t t = 1;
     t += 1;
     return 0;
}

The following program compiles as C++ or C:

#include <stdio.h>

int main()
{
     size_t t = 1;
     t += 1;
     return 0;
}

I hope this helps.

-Jeff

Re: [Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Jeff Webb]

On 12/28/2012 11:29 AM, Jeff Webb wrote:
> On 12/28/2012 11:02 AM, Jeff Webb wrote:
>> On 12/28/2012 10:58 AM, Jeff Webb wrote:
>>> On 12/28/2012 09:44 AM, Gilles Chanteperdrix wrote:
>>>> On 12/28/2012 04:33 PM, hauptmech wrote:
>>>>
>>>>> On 12/28/2012 04:01 PM, Gilles Chanteperdrix wrote:
>>>>>> On 12/28/2012 01:26 PM, Mariusz Janiak wrote:
>>>>>>
>>>>>>> Hi
>>>>>>>
>>>>>>> After successful Xenomai 2.6.2 installation (with Gilles help), I have started building OROCOS 2.6 with xeno support, and once again I went into trouble. This time I am not sure that it is a Xenomai related bug. The problem is following
>>>>>>>
>>>>>>> from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.hpp:42,
>>>>>>>                        from /worek/install/orocos-toolchain-xeno/rtt/rtt/transports/mqueue/MQLib.cpp:40:
>>>>>>>       /usr/xenomai/include/xenomai/posix/stdio.h:30:1: error: ?size_t? does not name a type
>>>>>>>       make[2]: *** [rtt/transports/mqueue/CMakeFiles/rtt-transport-mqueue-xenomai_plugin.dir/MQLib.cpp.o] Błąd 1
>>>>>>>
>>>>>>> I have found one thread related to this problem
>>>>>>>
>>>>>>> http://www.xenomai.org/pipermail/xenomai/2012-September/026143.html
>>>>>>>
>>>>>>> Adding #include <unistd.h> in /usr/xenomai/include/xenomai/posix/stdio.h have solved my problem, but I don't know if it is a suitable solution.
>>>>>>
>>>>>> Hi Mariusz,
>>>>>>
>>>>>> thanks for the report. Could you tell me which distribution and which
>>>>>> version you are using? We are certainly not going to include unistd.h in
>>>>>> stdio.h, the fact that size_t is not defined indicates that something
>>>>>> else is wrong as there are services supposedly defined in stdio.h which
>>>>>> use size_t.
>>>>>>
>>>>>> Regards.
>>>>> http://gcc.gnu.org/gcc-4.7/porting_to.html (search for unistd.h)
>>>>>
>>>>> The correct fix is probably to add unistd.h to MQLib.hpp (and other
>>>>> include files that are missing it)
>>>>
>>>>
>>>> This does not look like the same issue: using size_t is valid in stdio.h
>>>> without including unistd.h
>>>>
>>>> I will install the same distribution as Mariusz to try and reproduce the
>>>> issue.
>>>>
>>
>> I ran into a similar issue under Ubuntu 12.04 and Xenomai-2.6.1+.  I was also using C++, so maybe it isn't a problem in C...
>>
>> -Jeff
>>
>
> Here's some more information.  This C++ program fails to compile under Xenomai because ‘size_t’ does not name a type.  It compiles fine without Xenomai:
>
> #include <iostream>
>
> int main()
> {
>      size_t t = 1;
>      t += 1;
>      return 0;
> }
>
> But this one compiles:
>
> #include <cstdio>
> #include <iostream>
>
> int main()
> {
>      size_t t = 1;
>      t += 1;
>      return 0;
> }
>
> The following program compiles as C++ or C:
>
> #include <stdio.h>
>
> int main()
> {
>      size_t t = 1;
>      t += 1;
>      return 0;
> }
>

Sorry, I need to be more clear.  The compile problem is due to size_t being used in a header file, not my main program.  The following example also fails to compile unless stdio.h or cstdio are included from the main program before iostream.

#include <iostream>

int main()
{
     return 0;
}

In file included from /usr/include/wchar.h:37:0,
                  from /usr/include/c++/4.6/cwchar:46,
                  from /usr/include/c++/4.6/bits/postypes.h:42,
                  from /usr/include/c++/4.6/iosfwd:42,
                  from /usr/include/c++/4.6/ios:39,
                  from /usr/include/c++/4.6/ostream:40,
                  from /usr/include/c++/4.6/iostream:40,
                  from jefftest.cpp:2:
/usr/include/xenomai/posix/stdio.h:30:1: error: ‘size_t’ does not name a type

Sorry for all the traffic, but I realized what I wrote in my last message was not clear.

-Jeff

Re: [Xenomai] posix/stdio.h error: ?size_t? does not name a type

[Gilles Chanteperdrix]

On 12/28/2012 06:29 PM, Jeff Webb wrote:

> Here's some more information.  This C++ program fails to compile
> under Xenomai because ‘size_t’ does not name a type.  It compiles
> fine without Xenomai:
> (...)
> I hope this helps.


A lot, thanks, please try the following commit:
http://git.xenomai.org/?p=xenomai-2.6.git;a=commit;h=943a0801349548f85227f7a3032eb6ac0a5258e2

-- 
                                                                Gilles.