mingw August 2019

mingw@lists.fedoraproject.org

7 participants
8 discussions

Review request: mingw-fribidi
by Sandro Mani 27 Aug '19

27 Aug '19

Hi And another easy review: mingw-fribidi [1], needed for updating mingw-pango. Thanks Sandro [1] https://bugzilla.redhat.com/show_bug.cgi?id=1746170

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Review request: mingw-qt5-qtwebchannel
by Sandro Mani 27 Aug '19

27 Aug '19

Hi Could someone please review mingw-qt5-qtwebchannel [1]? Should be super trivial (basically copy-paste of mingw-qt5-qtwebsockets with the qt module name changed), and I need it to finally update mingw-qt5-qtwebkit to parity with the native package. Happy to review in exchange. Thanks Sandro [1] https://bugzilla.redhat.com/show_bug.cgi?id=1745992

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EPEL support
by Michael Cronenworth 26 Aug '19

26 Aug '19

The MinGW packages for EPEL 7 are in a very bad state. We haven't even started on EPEL 8 yet. Should we discontinue support for EPEL? Does anyone have any use case for EPEL? I'm going to retire my EPEL branches, but if anyone wants to take them over please go ahead. Thanks, Michael

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Re: EPEL support
by Michael Cronenworth 24 Aug '19

24 Aug '19

On 8/24/19 6:47 PM, Marco Feenstra wrote: > Is this Erik van Pienbroeks legacy? Yes, he maintained the core packages in EPEL and I maintained PostgreSQL. No one has taken it over.

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mingw-rust and mingw32, SJLJ vs dwarf2 exception model
by Sandro Mani 14 Aug '19

14 Aug '19

Hi I've got a working build of mingw64-rust [1] with which I'm able to successfully build a current version of mingw64-librsvg2. But here comes the problem: As explained here [2], rust cannot be cross-compiled to a mingw32 target using SJLJ exceptions. To be able to offer mingw-rust in the main repos, I don't see many other options than switching the mingw32 toolchain to dwarf2 exceptions if we want to keep the same package set for both mingw32 and mingw64. As far as I can see, there are some (rather old) discussions here and there concerning which model to use, i.e. this one for debian [3] and this one for mingw-w64 [4]. All in all, the summary appears to be SJLJ (setjmp/longjmp): - not "zero-cost": even if an exception isn't thrown, it incurs a minor performance penalty (~15% in exception heavy code) - allows exceptions to traverse through e.g. windows callbacks DWARF (DW2, dwarf-2) - no permanent runtime overhead - needs whole call stack to be dwarf-enabled, which means exceptions cannot be thrown over e.g. Windows system DLLs (i.e. throwing an exception in a system DLL callback and attempting to catch it won't work) - DW2 potentially generates bigger libraries. The overhead however is not big (< 10%) for typical applications. MSYS2 for one appears to have switched to DW2 [5]. Any opinions whether we should also switch to dwarf2? Or how to handle the mingw-rust situation in general? Thanks Sandro [1] https://copr.fedorainfracloud.org/coprs/smani/mingw64-rust/builds/ [2] https://github.com/rust-lang/rust/issues/12859 [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=540782 [4] https://sourceforge.net/p/mingw-w64/mailman/message/30532139/ [5] https://github.com/msys2/MINGW-packages/blob/master/mingw-w64-gcc/PKGBUILD#…

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MinGW bug reports
by Michael Cronenworth 13 Aug '19

13 Aug '19

Hi, Thanks for creating something that creates bug reports. I used to send emails to the Fedora MinGW mailing list that would report the same data. Could you send an email to the Fedora MinGW mailing list with a master list of package names, versions, and owners? It would also be a good time to introduce yourself there. Thanks, Michael

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Requested to unretire mingw-icu
by Sandro Mani 12 Aug '19

12 Aug '19

Hi Just a heads up that I've requested mingw-icu to be unretired [1], which got retired as part of the FTBFS cleanup. I'll be working on getting it building again and updating it if no-one objects. Sandro [1] https://pagure.io/releng/issue/8615

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Fwd: mingw-filesystem: redhat-rpm-config dependency
by Jakub Janku 05 Aug '19

05 Aug '19

I copied the wrong address. Forwarding to the proper one, sorry about that. ---------- Forwarded message --------- From: Jakub Janku <jjanku(a)redhat.com> Date: Mon, Aug 5, 2019 at 11:15 AM Subject: mingw-filesystem: redhat-rpm-config dependency To: <mingw-owner(a)lists.fedoraproject.org> Hi, the phodav's Windows build on Fedora Rawhide started to fail recently [0]. The cause seem to be the %{__global_cflags} and %{__global_ldflags} macros (used in mingw-meson), that do not get evaluated properly as the redhat-rpm-config package that provides them is missing. Therefore I was wondering whether mingw-filesystem should require this package. Apart from that, the aforementioned macros are marked as deprecated in the source file [1]. [0] https://gitlab.gnome.org/GNOME/phodav/-/jobs/364344 [1] https://src.fedoraproject.org/rpms/redhat-rpm-config/blob/master/f/macros Cheers, Jakub Janků

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mingw August 2019