Patching the source to use <experimental/filesystem> resolves that particular issue with C++17 in GCC7.
However, the Scilab build now fails with many occurrences of the error: error: template with C linkage - You can see the raw build logs here: https://dev.azure.com/conda-forge/84710dde-1620-425b-80d0-4cf5baca359d/_apis/build/builds/125787/logs/7 - The scilab recipe update including the patches for <filesystem> is available here: https://github.com/conda-forge/scilab-feedstock/pull/11 Officially supporting older versions of GCC than GCC 8 (which is from May 2018) would be greatly appreciated. Best, On Thu, Feb 27, 2020 at 2:28 PM Sylvain Corlay <sylvain.cor...@gmail.com> wrote: > Hi Clément, > > Regarding the Java, we already skip xcos in the build but we were really > hoping that we could start including it with this version. > > For the filesystem thingy, I will be patching the source as part of the > conda recipe to use <experimental/filesystem> instead and see how it goes - > although it would be really nice if we could support more compilers out of > the box. > > Sylvain > > On Thu, Feb 27, 2020 at 2:25 PM Clément David <clement.da...@esi-group.com> > wrote: > >> Hello Sylvain, >> >> First, thank you for your work on the conda packaging. The c++17 >> requirements is only needed for a single file that is used to implement >> fullpath() (named fullpath.cpp). The used API is reduced to >> std::filesystem::weakly_canonical and std::filesystem::absolute [1]. I >> guess using a light patch might relax the use of the filesystem header, for >> example, something like [2]. >> >> About the Java8 requirement, I guess you could ./configure --without-xcos >> as a first approach. I started porting the Java code out of javax.xml.bind >> [3] but that's very repetitive and error prone work. >> >> [1]: >> https://codereview.scilab.org/#/c/21041/25/scilab/modules/fileio/src/cpp/fullpath.cpp >> [2]: >> https://stackoverflow.com/questions/45867379/why-does-gcc-not-seem-to-have-the-filesystem-standard-library >> [3]: https://codereview.scilab.org/#/c/20630/ >> >> Regards, >> >> -- >> Clément >> >> > -----Original Message----- >> > From: dev <dev-boun...@lists.scilab.org> On Behalf Of Sylvain Corlay >> > Sent: Thursday, February 27, 2020 1:50 PM >> > To: List dedicated to the development of Scilab <dev@lists.scilab.org> >> > Subject: Re: [Scilab-Dev] Scilab 6.1.0 is available! >> > >> > Congratulations on the release. >> > >> > I am the author of the conda package for scilab, and unfortunately, it >> does not >> > seem that 6.1.0 can be successfully packaged for conda-forge with the >> new >> > requirement for the <filesystem> C++17 header, which requires GCC 8. >> > >> > Conda-forge is still based on GCC 7, which is fairly recent, with C++17 >> enabled by >> > default. Would you consider not using the <filesystem> from the C++17 >> standard >> > so that Scilab can be made available to a wider audience? >> > >> > Another blocker to the packaging of Scilab is the outdated version of >> java that is >> > required by the GUI. Is there any plan to support a more recent version >> of >> > OpenJDK? >> > >> > Best, >> > >> > Sylvain Corlay >> > >> > On Tue, Feb 25, 2020 at 2:10 PM Clément David <Clement.David@esi- >> > group.com <mailto:clement.da...@esi-group.com> > wrote: >> > >> > >> > Dear Scilab-ers, >> > >> > >> > >> > A brand new Scilab 6.1.0 <https://www.scilab.org/download/6.1.0> >> is >> > released today! >> > >> > >> > >> > This version includes further improvement atop Scilab 6.0 for >> better >> > stability and increased algorithm performance. It also includes a >> reworked >> > display for more compact and meaningful value printing; web tools for >> HTTP, >> > JSON support; better debug support and various algorithm >> rewrite/extension. >> > >> > >> > >> > This first iteration of the 6.1 branch fixes up to 245 bugs and >> implements >> > missing features from the 6.0.2 version. We would like to give a >> special thanks >> > to Samuel and Stephane who have been very active this year. >> > >> > >> > >> > If you find any critical issue or instability that might need a >> 6.1.x release >> > please alert us <https://bugzilla.scilab.org/> . If you are a toolbox >> maintainer, >> > please rebuild your code, upgrade it when needed and publish it to >> > atoms.scilab.org <https://atoms.scilab.org/> . >> > >> > >> > >> > For the complete list of changes and bugs fixed, please take a >> look at >> > the CHANGES <https://help.scilab.org/CHANGES> file. >> > >> > >> > >> > -- >> > >> > Clément on behalf of the Scilab team >> > >> > _______________________________________________ >> > dev mailing list >> > dev@lists.scilab.org <mailto:dev@lists.scilab.org> >> > http://lists.scilab.org/mailman/listinfo/dev >> > >> >> _______________________________________________ >> dev mailing list >> dev@lists.scilab.org >> http://lists.scilab.org/mailman/listinfo/dev >> >
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