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<p class="MsoNormal" style="margin-left:36.0pt">I would personally avoid the use of mintty because of how it implements pty
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">OK thanks.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">If I remember correctly you have a setup where you use bash directly in emacs.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
<p class="MsoNormal">Correct<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">In which case you just need To set the environment variables and add /mingw64/bin to your path.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">But set which envt variables to what, precisely?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">As I say in another email, c:/mingw64 doesn’t exist. c:/msys64 does, and c:/msys64/mingw64. Very confusing!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><br>
Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> lonetiger@gmail.com <lonetiger@gmail.com>
<br>
<b>Sent:</b> 26 March 2018 11:09<br>
<b>To:</b> Simon Peyton Jones <simonpj@microsoft.com>; Shao, Cheng <cheng.shao@tweag.io>; ghc-devs@haskell.org<br>
<b>Subject:</b> RE: Windows<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">“</span>C:\msys64\msys2_shell.cmd -mingw64 -mintty”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Won’t work for you as it spawns a new process using mintty as your terminal emulator.<o:p></o:p></p>
<p class="MsoNormal">If I remember correctly you have a setup where you use bash directly in emacs. In which case you just need<o:p></o:p></p>
<p class="MsoNormal">To set the environment variables and add /mingw64/bin to your path.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I would personally avoid the use of mintty because of how it implements pty. Lots of interactive programs don’t work<o:p></o:p></p>
<p class="MsoNormal">Correctly under it, including ghci where we need specific hacks to work around some of it’s issues
<a href="https://github.com/mintty/mintty/issues/56">https://github.com/mintty/mintty/issues/56</a>.<o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From: </span></b><span lang="EN-US"><a href="mailto:ghc-devs@haskell.org">Simon Peyton Jones via ghc-devs</a><br>
<b>Sent: </b>Monday, March 26, 2018 11:03<br>
<b>To: </b><a href="mailto:cheng.shao@tweag.io">Shao, Cheng</a>; <a href="mailto:ghc-devs@haskell.org">
ghc-devs@haskell.org</a><br>
<b>Subject: </b>RE: Windows<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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If the build environment is managed by an MSYS2 installation, then the MinGW64 shell startup script automatically sets up "MSYSTEM" for you. It can be launched like "C:\msys64\msys2_shell.cmd -mingw64 -mintty".<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Well I just followed the Method A instructions at
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><a href="https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Windows">https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Windows</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<span style="font-size:12.0pt">Are you saying that I should run “</span>C:\msys64\msys2_shell.cmd -mingw64 -mintty" just once, after installing? Or repeatedly? Or that I should somehow us it as my main shell? And what does that commend actually do?<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Sorry to be dense<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> ghc-devs <<a href="mailto:ghc-devs-bounces@haskell.org">ghc-devs-bounces@haskell.org</a>>
<b>On Behalf Of </b>Shao, Cheng<br>
<b>Sent:</b> 26 March 2018 10:59<br>
<b>To:</b> <a href="mailto:ghc-devs@haskell.org">ghc-devs@haskell.org</a><br>
<b>Subject:</b> Re: Windows<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:6.0pt;margin-right:0cm;margin-bottom:6.0pt;margin-left:0cm">
Hi Simon,<o:p></o:p></p>
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<o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:6.0pt;margin-right:0cm;margin-bottom:6.0pt;margin-left:0cm">
If the build environment is managed by an MSYS2 installation, then the MinGW64 shell startup script automatically sets up "MSYSTEM" for you. It can be launched like "C:\msys64\msys2_shell.cmd -mingw64 -mintty".<o:p></o:p></p>
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On Mon, Mar 26, 2018 at 5:46 PM, Simon Peyton Jones via ghc-devs <<a href="mailto:ghc-devs@haskell.org" target="_blank">ghc-devs@haskell.org</a>> wrote:<o:p></o:p></p>
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Making it part of the error message would be v helpful.<br>
<br>
I have added a section to "Troubleshooting" on<br>
<a href="https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Windows" target="_blank">https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation/Windows</a><br>
<br>
But it should really be part of the instructions higher up to sa<br>
export MSYSTEM=MINGW64<br>
<br>
Might someone do that? I wasn't quite sure where<br>
<span style="color:#888888"><br>
<span class="gmail-hoenzb">Simon</span></span><o:p></o:p></p>
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<br>
| -----Original Message-----<br>
| From: ghc-devs <<a href="mailto:ghc-devs-bounces@haskell.org">ghc-devs-bounces@haskell.org</a>> On Behalf Of Ben Gamari<br>
| Sent: 24 March 2018 16:42<br>
| To: Gabor Greif <<a href="mailto:ggreif@gmail.com">ggreif@gmail.com</a>>; <a href="mailto:lonetiger@gmail.com">
lonetiger@gmail.com</a><br>
| Cc: <a href="mailto:ghc-devs@haskell.org">ghc-devs@haskell.org</a><br>
| Subject: Re: Windows<br>
|<br>
| Gabor Greif <<a href="mailto:ggreif@gmail.com">ggreif@gmail.com</a>> writes:<br>
|<br>
| > Just an idea...<br>
| ><br>
| > could this hint be part of the `configure` error message?<br>
| ><br>
| Indeed. See D4526.<br>
|<br>
| Cheers,<br>
|<br>
| - Ben<o:p></o:p></p>
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