[PPL-devel] setitimer functions

[Enea Zaffanella]

Apparently, we are also using the timer functionality in a couple of 
places in the main PPL library, i.e., not just inside the Parma Watchdog 
Library, so that disabling the latter is not enough.

The functionality is *not* strictly needed (it is used just in a couple 
of tests and in a demo application), so I guess we will make these to be 
conditionally compiled in the near future.

For the near present, I suggest you go for the first option pointed out 
by Roberto (i.e., use Cygwin).

Cheers,
Enea.

Roy Sfaradi wrote:
> Hello Roberto,
> 
> Thanks for your reply.
> 
> I've tried the --disable-watchdog (and --without-watchdog) option. The configure executed without errors, but, when I tried make I got the following error:
> ------
> timings.cc: In function `void start_clock()':
> timings.cc:50: error: aggregate `rusage rsg' has incomplete type and cannot be defined
> timings.cc:51: error: `RUSAGE_SELF' undeclared (first use this function)
> timings.cc:51: error: (Each undeclared identifier is reported only once for each function it appears in.)
> timings.cc:51: error: `getrusage' undeclared (first use this function)
> timings.cc: In function `void print_clock(std::ostream&)':
> timings.cc:61: error: aggregate `rusage rsg' has incomplete type and cannot be defined
> timings.cc:62: error: `RUSAGE_SELF' undeclared (first use this function)
> timings.cc:62: error: `getrusage' undeclared (first use this function)
> make[2]: *** [timings.o] Error 1
> make[1]: *** [all-recursive] Error 1
> make: *** [all] Error 2
> ------
> 
> I guess this error is for similar reason...
> 
> Regards,
> 
> Ro'ee Sfaradi
> sfa_roy at yahoo.com
> 
> ----- Original Message ----
> From: Roberto Bagnara <bagnara at cs.unipr.it>
> To: sfa_roy at yahoo.com
> Cc: The Parma Polyhedra Library developers' list <ppl-devel at cs.unipr.it>
> Sent: Saturday, September 22, 2007 6:45:20 PM
> Subject: Re: setitimer functions
> 
> Ro'ee Sfaradi wrote:
>  > Hello all,
>  >
>  > I'm kinda new to MinGW and Msys.
>  >
>  > I'm trying to compile a package called ppl (The Parma Polyhedra Library) in msys environment.
>  >
>  > When I'm run the ./configure after it runs a bit, I get the following message :
>  >
>  > ------
>  > configure: error: CANNOT BUILD THE WATCHDOG LIBRARY
>  > *** THE SYSTEM DOES NOT PROVIDE THE SETITIMER FUNCTION.
>  > configure: error: /bin/sh './configure' failed for Watchdog
>  > ------
>  >
>  > I searched over FAQs and googled and didn't find any hint about it. Is it something I need to install to have the timer support on msys?
>  >
>  > Thanks in advance,
>  > Ro'ee
> 
> Dear Ro'ee,
> 
> one possibility is to use Cygwin.  Another possibility, if you do not need the functionalities
> provided by the Parma Watchdog Library, is to configure the PPL with the option --disable-watchdog.
> All the best,
> 
>      Roberto
>