[R-pkg-devel] Preparing for R 4.2.0 and UCRT via MXE builds

[Tomas Kalibera]

On 4/8/22 12:49, matthias-gondan wrote:
> Dear Thomas,
>
> This is great news, thank you. I understand that I use the 
> /usr/bin/cmake from Rtools42, not /ucrt64/bin/cmake, correct? Which 
> generator should I select, "Unix Makefiles"? I ask because this 
> requires a few more #defines for Swi-Prolog, but that should be feasible.

Hi Matthias,

please see https://cran.r-project.org/bin/windows/base/howto-R-4.2.html 
and look for cmake, there is now a simple example for native (and 
cross-) compilation. Though your case might be harder and if you run 
into problems, please let me know.

Please use "cmake" that is on PATH with Rtools42 (currently it is under 
x86_64-w64-mingw32.static.posix). It will use "Unix Makefiles" by 
default and you can assume it is available. It will find headers and 
libraries from Rtools42 as needed.

If your installation of Rtools42 doesn't have cmake, please upgrade it.

Best
Tomas

>
> Best wishes,
>
> Matthias
>
> -------- Ursprüngliche Nachricht --------
> Von: Tomas Kalibera <tomas.kalibera using gmail.com>
> Datum: 05.04.22 09:08 (GMT+01:00)
> An: matthias-gondan <matthias-gondan using gmx.de>, Dirk Eddelbuettel 
> <edd using debian.org>, r-package-devel using r-project.org
> Betreff: Re: [R-pkg-devel] Preparing for R 4.2.0 and UCRT via MXE builds
>
> On 4/4/22 21:05, matthias-gondan wrote:
> > Still compiling... but when it is done, I might also need some 
> advice. I don't mind if mxe help is given on this mailing list.Best 
> wishesMatthias
>
> I am happy to help if you run into specific issues. If you decided to
> build SWI Prolog in the end from source, please note I've recently added
> a host build of cmake to Rtools42. The Berkeley db is part of MXE and
> can trivially be added to Rtools42 if you need it (simply would be
> listed in settings.mk, running "make db" succeeds on my system,
> producing libdb.a). Libuuid is already part of Rtools42.
>
> Best
> Tomas
>
> > -------- Ursprüngliche Nachricht --------Von: Dirk Eddelbuettel 
> <edd using debian.org> Datum: 04.04.22  20:47 (GMT+01:00) An: 
> r-package-devel using r-project.org Betreff: [R-pkg-devel] Preparing for R 
> 4.2.0 and UCRT via MXE builds Is anybody else looking into trying to 
> come to terms with MXE forcross-compiling for UCRT for R 4.2.0 and its 
> updated Windows toolchain?  Ihave been bugging Tomas in private email 
> for a bit and figured it might beuseful to spread the load a little.Is 
> anybody else looking into this?  Any interest in pooling resources 
> aroundsome virtual meeting place? New mailing list? Or an ad-hoc slack 
> (or channelon existing one)?DirkPS My current status:- MXE installed 
> on Ubuntu as cross-compilation. Pretty straightforward.- One initial 
> test build (using cmake) failed:     fatal error: Windows.h: No such 
> file or directory- Another of a known cmake-using library (nlopt) 
> succeeded. Good. -- dirk.eddelbuettel.com | @eddelbuettel | 
> edd using debian.org______________________________________________R-package-devel@r-project.org 
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