Is anyone using msys to build OpenJDK? (original) (raw)

Erik Joelsson erik.joelsson at oracle.com
Mon Dec 17 17:59:03 UTC 2018

Thanks Volker! That was what I wanted to hear. :)

The inability to build in parallel was what turned us off mingw/msys way back when you introduced it. Without concurrency, we certainly did not see any improvement in performance.

/Erik

On 2018-12-15 09:34, Volker Simonis wrote:

It is a long time ago (~2012) that I added and fixed the MinGW/Msys build [1] on Windows. We at SAP used it productively for some years because at that time Cygwin was terrible slow, buggy, had no 64-bit version, wasn’t really maintained very well, etc...

But things have changed to the opposite since then and we‘ve switched to Cygwin at least 3 years ago (can‘t find the exact date now). As far as I know, there haven‘t been any serious users of the MinGW/Msys build since then. At that time MinGW/Msys had some serious problems which made it impossible to do parallel builds. Not sure if that has been fixed by now? I personally always liked MinGW/Msys compared to Cygwin because of the (at least in my eyes) more intuitive way of handling Unix/Windows paths it’s simplicity and speed. I’m not sure however if it is currently actively supported, and if the old problems have been fixed. So to finally answer your question :) I don’t think anybody is currently using the MinGW/Msys build and I doubt that it will work without bigger adaptions and fixes. Regards, Volker [1] http://mail.openjdk.java.net/pipermail/build-dev/2012-March/005729.html Andrew Luo <andrewluotechnologies at outlook.com_ _<mailto:andrewluotechnologies at outlook.com>> schrieb am Sa. 15. Dez. 2018 um 10:11: From the source history, it appears that with JDK9 we dropped support for msys: http://hg.openjdk.java.net/jdk/jdk/rev/2a2e56f4c03b This was committed about 1.5 years ago - are you suggesting that perhaps we added support for msys2 later on (perhaps unofficial or undocumented)? Thanks, -Andrew -----Original Message----- From: build-dev <build-dev-bounces at openjdk.java.net_ _<mailto:build-dev-bounces at openjdk.java.net>> On Behalf Of Erik Joelsson Sent: Friday, December 14, 2018 5:39 PM To: build-dev <build-dev at openjdk.java.net_ _<mailto:build-dev at openjdk.java.net>> Subject: Is anyone using msys to build OpenJDK? If anyone is currently using msys to build OpenJDK, I'm curious to know what version so I can replicate that environment. As we are trying to add WSL support, we are touching all sorts of places in configure, and there is a big risk that we break the existing msys support. I would like to be able to setup an environment so I can at least do basic verification of such changes. I know we initially set this up for msys, but later I tried msys2, which seemed a lot more modern and easy to use. I do remember there were several options on how to setup it up exactly though. /Erik

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