Thank you, that's definitely interesting, but not exactly suit my taste ;) I tried to make a quick example with it and failed. First, my timeincl contains two files: 
$ perl -V:timeincl
timeincl='/usr/include/x86_64-linux-gnu/sys/time.h /usr/include/time.h
+ ';

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Second, it seems not that easy to make it parse time.h, you may have to add some include directories and define some macros, depending on the system, so it is not that portable. I stopped with this: 
use 5.010;
use strict;
use warnings;

use Convert::Binary::C;
use Config;

my $c = Convert::Binary::C->new;
$c->Include(
    '/usr/include',
    '/usr/include/x86_64-linux-gnu/sys/',
    '/usr/include/x86_64-linux-gnu/'
)->Define('__WORDSIZE=64');
$c->parse_file('/usr/include/x86_64-linux-gnu/sys/time.h');
my $timeval = $c->pack( 'struct timeval', { tv_sec => 1, tv_usec => 0 
+} );

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And it gave me 
bits/wordsize.h, line 7: macro '__WORDSIZE' redefined unidentically
    included from /usr/include/x86_64-linux-gnu//sys/cdefs.h:378
    included from /usr/include/features.h:357
    included from /usr/include/x86_64-linux-gnu/sys/time.h:23 at pack_
+timeval2.pl line 10.

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I probably would be able to make it work on my particular system, but not in general case. And it requires that includes were installed on a target system, which may not be the case.

In reply to Re^2: Packing struct timeval by zwon
in thread Packing struct timeval by zwon

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