Re: [boost] Problem with libs/system/src/error_code.cpp

From: Beman Dawes (bdawes_at_[hidden])
Date: 2006-12-15 12:22:54

Glenn Schrader wrote:
> Beman Dawes wrote:
>> Glenn Schrader wrote:
>>
>>   
>>> I had a problem compiling boost on a sparc solaris 2.8 platform. After a 
>>> bit of digging the change below (notice the end of the #if). The code in 
>>> the #else calls strerror_r but solaris doesn't have it.
>>>     
>> Hum... See http://docs.sun.com/app/docs/doc/816-5168/6mbb3hrti?a=view
>>
>> It looks like Solaris 10 at least does have strerror_r.
>>
>> Are you really using 2.8? How old is that?
>>   
> Older than I would like but I don't have a choice. We use some VME based 
> real-time systems that have a sparc based SBC running solaris 2.8. There 
> are driver compatibility issues for 3rd party boards that make us stick 
> with this configuration.

Makes sense.

>> Could the problem really be that error_code.cpp is including <cstring>, 
>> but really needs to include <string.h>?
>>   
> No, its not in string.h either. Just to double check; I couldn't find 
> strerror_r by grepping all of the headers under /etc. There is also no 
> man page for strerror_r.

That gibes with James Dennett's report that it doesn't appear until 
Solaris 10.

>> Given that Sun does support strerror_r on some versions, I'd like to 
>> only fallback to strerror when absolutely necessary
>>   
> That makes sense. I listed the macros that gcc was predefining using 
> 'cpp -dM /dev/null' and there doesn't seem to be a macro containing the 
> solaris version. I haven't looked at bjam very much but could it run 
> some autoconf-like test cases to determine the correct function and 
> headers to use?

Boost.Config may be able to help, but first, what value is __SUNPRO_CC 
set to in your environment? And do you know if string.h comes with the 
operating system or the compiler? It would be misleading to base choice 
on a compiler macro if in fact the header involved ships with the OS. Do 
you know if there is a way to discover the version of the operating 
system on Solaris?

Thanks,

--Beman

Thanks,

--Beman