Support for MSYS2

Someone

24 Mar, 2015 08:28 PM

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MSYS2 is awesome, it makes building Windows software much easier. Pidgin++ for example mostly eliminated the need for this thanks to MSYS2: https://developer.pidgin.im/wiki/BuildingWinPidgin.

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1. #31 Posted by Feodor Fitsner Support staff on 05 Apr, 2016 04:04 AM

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   OK, thanks. I've added a new issue: https://github.com/appveyor/ci/issues/733 - will try to deliver it in this week update.

2. #32 Posted by Someone on 05 Apr, 2016 08:13 PM

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   Feodor, a few points:

   • Can you please wait for new installer releases before installing msys32, and then reinstall msys64? I think Alexey plans to release them soon. There was a relevant change to pacman where the update-core was removed and pacman now supports core updates directly. This is desirable to be installed by default and have people migrating from update-core as soon as possible.

   • When you do, can you please perform a more basic installation? The one in https://github.com/appveyor/ci/issues/597 includes random additional packages. If they were to be added, there are literally hundreds of them, but this would make system update more expensive. For a default environment we install the basic development groups, with projects installing their specific dependencies when needed:

     pacman --sync --noconfirm VCS
     pacman --sync --noconfirm base-devel
     pacman --sync --noconfirm mingw-w64-i686-toolchain
     pacman --sync --noconfirm mingw-w64-x86_64-toolchain # msys64-only
     

   • Note that I added VCS above since for some reason they are not part of base-devel. This should get git installed by default and fix errors like cygheap base mismatch that I see reported in that issue. This was because git getting resolved to some external installation. The new installers should also fix similar issues because MSYS2 now only uses a basic Windows path by default.

   • I see the same user is having problem with gcc. Before starting MSYS2 we are supposed to configure path with the MSYSTEM variable in appveyor.yml wtih (they want MINGW64)

     • MINGW32, for 32-bit native toolchain (for example gcc will resolve to /mingw32/bin/gcc)
     • MINGW64, for 64-bit native toolchain (for example gcc will resolve to /mingw64/bin/gcc)
     • MSYS, for MSYS toolchain (for example gcc will resolve to /usr/bin/gcc)

3. #33 Posted by Feodor Fitsner Support staff on 06 Apr, 2016 07:24 PM

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   My main concern with this update is backward compatibility. If there is no update-core anymore it would mean a lot of builds broken?

4. #34 Posted by Someone on 07 Apr, 2016 09:23 PM

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   Currently, projects update the system with:

   update-core # Core
   pacman -Syu # Rest
   

   This is not going to work anymore even if you keep the old installation. The update-core script will pull latest pacman and remove itself anyway, invalidating these steps for subsequent updates. Projects would need to be patched like this:

   pacman -Sy pacman  # Latest pacman
   pacman -Syu        # Core
   pacman -Syu        # Rest
   

   However if you migrate to new installation, one meaningless line can be removed:

   pacman -Syu # Core
   pacman -Syu # Rest
   

5. Ilya Finkelshteyn closed this discussion on 25 Aug, 2018 02:05 AM.