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Subject: Re: g++ don't build my project from last update

To: cygwin AT cygwin DOT com

References: <1461227815 DOT 667215524 AT f430 DOT i DOT mail DOT ru>

From: Marco Atzeri <marco DOT atzeri AT gmail DOT com>

Message-ID: <531977b9-fd8b-90bb-74ce-c2919ce62034@gmail.com>

Date: Thu, 21 Apr 2016 11:21:05 +0200

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On 21/04/2016 10:36, Дмитрий Марков wrote:
> Hello,
> I updated my cygwin yesterday, because I found strange bug when using boost::asio::ip::tcp::socket for sending some text information(some information became broken). I haven't got such bug under my Linux OS, so I decide upgrade the cygwin.
> After successful updating of cygwin I can't build my project.

The cygwin header has been recently update and reshuffled.

> The first error of compiler is:
>
> In file included from /usr/include/boost/thread/thread_time.hpp:10:0,
> from /usr/include/boost/thread/lock_types.hpp:18,
> from /usr/include/boost/thread/pthread/thread_data.hpp:12,
> from /usr/include/boost/thread/thread_only.hpp:17,
> from /usr/include/boost/thread/thread.hpp:12,
> from ../src/DoubleChannelCalculations.hpp:21,
> from ../src/DoubleChannelCalculations.cpp:14:
> /usr/include/boost/date_time/microsec_time_clock.hpp: In static member function 'static time_type boost::date_time::microsec_clock<time_type>::create_time(boost::date_time::microsec_clock<time_type>::time_converter)':
> /usr/include/boost/date_time/microsec_time_clock.hpp:84:26: error: there are no arguments to 'gettimeofday' that depend on a template parameter, so a declaration of 'gettimeofday' must be available [-fpermissive]
> gettimeofday(&tv, 0); //gettimeofday does not support TZ adjust on Linux.

The definition is in /usr/include/sys/time.h

protected by
#if __MISC_VISIBLE || __XSI_VISIBLE

> The second error message:
> /usr/include/boost/date_time/microsec_time_clock.hpp:84:26: note: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
> In file included from /usr/include/boost/asio/detail/signal_blocker.hpp:25:0,
> from /usr/include/boost/asio/detail/impl/select_reactor.ipp:29,
> from /usr/include/boost/asio/detail/select_reactor.hpp:212,
> from /usr/include/boost/asio/detail/reactor.hpp:29,
> from /usr/include/boost/asio/detail/impl/task_io_service.ipp:24,
> from /usr/include/boost/asio/detail/task_io_service.hpp:198,
> from /usr/include/boost/asio/impl/io_service.hpp:71,
> from /usr/include/boost/asio/io_service.hpp:767,
> from ../src/PrintPlots.hpp:17,
> from ../src/DoubleChannelCalculations.cpp:19:
> /usr/include/boost/asio/detail/posix_signal_blocker.hpp: In constructor 'boost::asio::detail::posix_signal_blocker::posix_signal_blocker()':
> /usr/include/boost/asio/detail/posix_signal_blocker.hpp:42:25: error: 'sigfillset' was not declared in this scope
> sigfillset(&new_mask);

in /usr/include/sys/signal.h

protected by
#if __BSD_VISIBLE || __XSI_VISIBLE >= 4


> I have tried to use -fpermissive, but it's not help me. I also have tried to add define _GNU_SOURCE, _POSIX_C_SOURCE=200809L, _XOPEN_SOURCE=700. If I define _GNU_SOURCE or _XOPEN_SOURCE=700 the project build successful, but it's not work, because boost::asio::ip::tcp::socket raise exception that socket.available() is not supported(but it was).
> I also try full reinstall of cygwin, but it's not help. I attached output of command "cygcheck -s -v -r".
>
> What it may be the problem and how I may resolve it?
>

try using __XSI_VISIBLE=4

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Subject:	Re: g++ don't build my project from last update
To:	cygwin AT cygwin DOT com
References:	<1461227815 DOT 667215524 AT f430 DOT i DOT mail DOT ru>
From:	Marco Atzeri <marco DOT atzeri AT gmail DOT com>
Message-ID:	<531977b9-fd8b-90bb-74ce-c2919ce62034@gmail.com>
Date:	Thu, 21 Apr 2016 11:21:05 +0200
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