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From: David Gibson <david@gibson.dropbear.id.au>
To: ccan@lists.ozlabs.org
Subject: Re: [PATCH v2 00/13] configurator: Support for Windows and MSVC
Date: Thu, 29 Sep 2016 10:21:22 +1000	[thread overview]
Message-ID: <20160929002122.GK18880@umbus> (raw)
In-Reply-To: <20160928062803.zrjaxfylwcpog33l@kevinolos>


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On Wed, Sep 28, 2016 at 12:28:03AM -0600, Kevin Locke wrote:
> On Tue, 2016-09-27 at 15:23 +1000, David Gibson wrote:
> > On Thu, Sep 22, 2016 at 09:33:03PM -0600, Kevin Locke wrote:
> >> This is the second revision of my patch series which adds support for
> >> building configurator with Microsoft Visual C++ and running it on
> >> Windows.  The motivation is to add sufficient support for Windows to
> >> allow using header-only modules with minimal hassle.
> > 
> > Thanks for sending again.  I've applied a number of the simpler ones
> > already.  The remainder I still have some comments on.
> 
> Thanks for reviewing again!  I think I've addressed everything, but if
> there is anything I've overlooked, let me know.

Right.  Can you rebase your current patches and post them as a new
series.  That's makes my life easier compared to updated versions of
each patch in various places in the thread.

> 
> > Incidentally you are introducing a new concept here which isn't really
> > comment on.  The use of more #ifdefs on system macros into
> > configurator means that the way our default compiler options will be
> > set up is basically going to be dependent on the setup used to compile
> > configurator itself.
> > 
> > That seems like a sensible approach to me; we just need to be a bit
> > careful of interactions with make and/or other build systems when we
> > could have a system with multiple compilation options (e.g. both MSVC
> > and cygwin/gcc installed on a Windows machine).
> 
> That is a good point and probably deserves some more thought and
> discussion.  I've tried to keep most additions configurable at
> run-time (e.g. the new -O configurator flag) so if the compile-time
> deduction is wrong it can be overridden.  But it still changes the
> configurator behavior based on how it was compiled without any
> explicit configuration.  That may or may not be desirable.

I think it's desirable, on the whole.  But having overrides is
generally a good idea too.

> Has there
> been any discussion of being more explicit about specifying build vs
> host system at build time?  Anything in particular you have in mind?

No, I'm afraid not.

> A good example of something which can not be overridden at runtime is
> the directory separator passed to popen(3).  I don't think there are
> currently any problems, but the choice of directory separator could
> easily cause problems between Cygwin and native binaries in other
> situations.  Definitely worth thinking about.

Yeah.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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  reply	other threads:[~2016-09-29  0:28 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-19  0:51 [PATCH 0/9] configurator: Support for Windows and MSVC Kevin Locke
2016-09-19  0:51 ` [PATCH 1/9] configurator: Replace unlink with remove Kevin Locke
2016-09-20  4:50   ` David Gibson
2016-09-19  0:51 ` [PATCH 2/9] configurator: Reimplement run using popen Kevin Locke
2016-09-20  5:00   ` David Gibson
2016-09-20  6:22     ` Kevin Locke
2016-09-20 13:28       ` David Gibson
2016-09-19  0:52 ` [PATCH 3/9] configurator: Inline err.h functions from musl libc Kevin Locke
2016-09-20  5:03   ` David Gibson
2016-09-27  6:11     ` Rusty Russell
2016-09-19  0:52 ` [PATCH 4/9] configurator: Use native directory separator Kevin Locke
2016-09-20  5:04   ` David Gibson
2016-09-19  0:52 ` [PATCH 5/9] configurator: Mark non-Windows tests MAY_NOT_COMPILE Kevin Locke
2016-09-20  5:06   ` David Gibson
2016-09-19  0:52 ` [PATCH 6/9] configurator: Print test source without cat Kevin Locke
2016-09-20  5:09   ` David Gibson
2016-09-19  0:52 ` [PATCH 7/9] configurator: Fix compiler warning with compare Kevin Locke
2016-09-20  5:09   ` David Gibson
2016-09-19  0:52 ` [PATCH 8/9] configurator: Pass output cflag to configurator Kevin Locke
2016-09-20  5:23   ` David Gibson
2016-09-20  6:22     ` Kevin Locke
2016-09-20 13:32       ` David Gibson
2016-09-19  0:52 ` [PATCH 9/9] configurator: DEFAULT_{COMPILER, FLAGS} for MSVC Kevin Locke
2016-09-20  4:48 ` [PATCH 0/9] configurator: Support for Windows and MSVC David Gibson
2016-09-20  6:21   ` Kevin Locke
2016-09-20 12:25     ` David Gibson
2016-09-20 14:16       ` Daniel Burke
2016-09-22  2:00         ` David Gibson
2016-09-23  3:33 ` [PATCH v2 00/13] " Kevin Locke
2016-09-23  3:33   ` [PATCH v2 01/13] configurator: Replace unlink with remove Kevin Locke
2016-09-27  4:50     ` David Gibson
2016-09-23  3:33   ` [PATCH v2 02/13] configurator: Reimplement run using popen Kevin Locke
2016-09-27  4:52     ` David Gibson
2016-09-28  5:29       ` [PATCH v3 2/13] " Kevin Locke
2016-09-23  3:33   ` [PATCH v2 03/13] configurator: Inline err.h functions from musl libc Kevin Locke
2016-09-27  5:01     ` David Gibson
2016-09-28  5:35       ` [PATCH v3 3/13] configurator: Inline err.h functions Kevin Locke
2016-09-23  3:33   ` [PATCH v2 04/13] configurator: Use native directory separator Kevin Locke
2016-09-27  5:05     ` David Gibson
2016-09-23  3:33   ` [PATCH v2 05/13] configurator: Mark non-Windows tests MAY_NOT_COMPILE Kevin Locke
2016-09-27  5:05     ` David Gibson
2016-09-23  3:33   ` [PATCH v2 06/13] configurator: Print test source without cat Kevin Locke
2016-09-27  5:06     ` David Gibson
2016-09-28  5:38       ` Kevin Locke
2016-09-23  3:33   ` [PATCH v2 07/13] configurator: Fix compiler warning with compare Kevin Locke
2016-09-27  5:09     ` David Gibson
2016-09-23  3:33   ` [PATCH v2 08/13] configurator: Add output cflag option and macro Kevin Locke
2016-09-27  5:17     ` David Gibson
2016-09-23  3:33   ` [PATCH v2 09/13] configurator: DEFAULT_{COMPILER, FLAGS} for MSVC Kevin Locke
2016-09-27  5:17     ` David Gibson
2016-09-23  3:33   ` [PATCH v2 10/13] configurator: Fix warning in HAVE_FOR_LOOP_DECLARATION Kevin Locke
2016-09-27  5:10     ` David Gibson
2016-09-23  3:33   ` [PATCH v2 11/13] configurator: Return pointer difference as ptrdiff_t Kevin Locke
2016-09-27  5:10     ` David Gibson
2016-09-23  3:33   ` [PATCH v2 12/13] Makefile: Define CFLAGS_FORCE_C_SOURCE macro Kevin Locke
2016-09-27  5:18     ` David Gibson
2016-09-27  6:18       ` Rusty Russell
2016-09-28  2:01         ` David Gibson
2016-10-26  2:49           ` Rusty Russell
2016-09-23  3:33   ` [PATCH v2 13/13] Add appveyor.yml Kevin Locke
2016-09-27  5:20     ` David Gibson
2016-09-28  6:01       ` [PATCH v3 " Kevin Locke
2016-09-27  5:23   ` [PATCH v2 00/13] configurator: Support for Windows and MSVC David Gibson
2016-09-27  6:20     ` Rusty Russell
2016-09-28  6:32       ` Kevin Locke
2016-09-28  6:28     ` Kevin Locke
2016-09-29  0:21       ` David Gibson [this message]
2016-09-29  0:44         ` [PATCH v3 0/7] " Kevin Locke
2016-09-29  0:44           ` [PATCH v3 1/7] configurator: Reimplement run using popen Kevin Locke
2016-09-29  0:44           ` [PATCH v3 2/7] configurator: Inline err.h functions Kevin Locke
2016-09-29  0:44           ` [PATCH v3 3/7] configurator: Print test source without cat Kevin Locke
2016-09-29  0:44           ` [PATCH v3 4/7] configurator: Add output cflag option and macro Kevin Locke
2016-09-29  0:44           ` [PATCH v3 5/7] configurator: DEFAULT_{COMPILER, FLAGS} for MSVC Kevin Locke
2016-09-29  0:44           ` [PATCH v3 6/7] Makefile: Define CFLAGS_FORCE_C_SOURCE macro Kevin Locke
2016-09-29  0:44           ` [PATCH v3 7/7] Add appveyor.yml Kevin Locke
2016-09-30 15:08           ` [PATCH v3 0/7] configurator: Support for Windows and MSVC David Gibson
2016-10-03  3:14             ` Kevin Locke
2016-12-02 20:23               ` AppVeyor custom Git URL support (was Re: [PATCH v3 0/7] configurator: Support for Windows and MSVC) Kevin Locke

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