Re: GHC 9.12.5 RC2 is now available
Magnus Viernickel <[email protected]> Wed, 24 Jun 2026 16:14:28 +0200
| Newsgroups | gmane.comp.lang.haskell.glasgow.user |
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Hi George,
thank you for testing the release candidates! I assume this might be
caused by the fact that the release artifacts have been generated on new
versions of MacOS that we didn't make any release from, yet.
Feel free to open an issue!
Best
Magnus
On 6/24/26 16:10, George Colpitts wrote:
> Thanks Magnus! I installed it on my MacOS 26.5.1 with an M4 chip. I
> smoke tested it with llvm 22.1.8 and it works fine.
>
> I did get some mysterious (to me at least) messages at install
>
> * checking for 'ar'...
> Entering: checking for 'ar'
> aarch64-apple-darwin-ar not found in search path
> aarch64-apple-darwin-llvm-ar not found in search path
> * checking for 'ranlib'...
> Entering: checking for 'ranlib'
> aarch64-apple-darwin-ranlib not found in search path
> aarch64-apple-darwin-llvm-ranlib not found in search path
> * Entering: checking for 'nm'
> aarch64-apple-darwin-nm not found in search path
> aarch64-apple-darwin-llvm-nm not found in search path
> * checking for linker for merging objects...
> Entering: checking for linker for merging objects
> aarch64-apple-darwin-ld not found in search path
>
> Maybe the above is connected with the following for which I will be
> reporting a bug in the next day or two:
>
> configure: WARNING:
> There are some differences between the toolchain configured by
> "configure" (default.target) and the toolchain configured by the
> "ghc-toolchain" program (default.target.ghc-toolchain).
>
> 16c16
> < , tgtCxxCompiler = Cxx {cxxProgram = Program { prgPath = "g++"
> , prgFlags = [] }}
> ---
> > , tgtCxxCompiler = Cxx {cxxProgram = Program { prgPath = "g++"
> , prgFlags = ["--target=arm64-apple-darwin"] }}
>
> Don't worry! This won't affect your ghc in any way.
> However, in a near future, we will move to configuring toolchains
> with "ghc-toolchain" by default, so you might have discovered a
> future bug.
> In light of it, if you've spotted this difference, please report a
> GHC bug at https://www.haskell.org/ghc/reportabug
>
>
> Thanks again,
> George
>
> On Wed, Jun 24, 2026 at 7:01 AM Magnus Viernickel via ghc-devs
> <[email protected]> wrote:
>
> Dear GHC users, distributors and devs,
>
> I'm pleased to announce that the second release candidate for GHC
> 9.12.5
> is now available from downloads.haskell.org
> <http://downloads.haskell.org> and on GHCup.
>
> GHC 9.12.5 is a bug fix release. For a long form announcement,
> check out
> https://discourse.haskell.org/t/ghc-9-12-5-rc2-is-now-available/14313/1.
>
> Mind that the very important overhaul of the semaphore-compat
> library to
> v2 is included in this release and that the semaphore feature will
> only
> start working with cabal-install 3.18 again, which is sadly a
> breaking
> but necessary change.
>
> Your testing of the release is much appreciated. Many thanks to the
> nixpkgs and stackage package set distributors for testing the first
> release candidate.
>
> If you find any issues with the candidate, please open an issue on
> the
> ghc issue tracker.
>
> If there are no critical regressions are discovered within this
> release
> candidate, it will be published in about 2 weeks of time (the week
> of 8
> July 2026).
>
> Best
>
> Magnus
>
> _______________________________________________
> ghc-devs mailing list -- [email protected]
> To unsubscribe send an email to [email protected]
>
>
> _______________________________________________
> Glasgow-haskell-users mailing list [email protected]
> To unsubscribe send an email [email protected]
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<p>Hi George,</p>
<p>thank you for testing the release candidates! I assume this might
be caused by the fact that the release artifacts have been
generated on new versions of MacOS that we didn't make any release
from, yet.</p>
<p>Feel free to open an issue! </p>
<p>Best </p>
<p>Magnus </p>
<div class="moz-cite-prefix">On 6/24/26 16:10, George Colpitts
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAB-d4A5R51JNgWy2EJMBwVBYXt13Y2nRG4OF7k0JK3Km=O2hqw@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div dir="ltr">
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large">Thanks
Magnus! I installed it on my MacOS 26.5.1 with an M4 chip. I
smoke tested it with llvm 22.1.8 and it works fine. </div>
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large"><br>
</div>
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large">I
did get some mysterious (to me at least) messages at install</div>
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large"><br>
</div>
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large">
<ul>
<li>checking for 'ar'...<br>
Entering: checking for 'ar'<br>
aarch64-apple-darwin-ar not found in search path<br>
aarch64-apple-darwin-llvm-ar not found in search path</li>
<li>checking for 'ranlib'...<br>
Entering: checking for 'ranlib'<br>
aarch64-apple-darwin-ranlib not found in search path<br>
aarch64-apple-darwin-llvm-ranlib not found in search
path</li>
<li>Entering: checking for 'nm'<br>
aarch64-apple-darwin-nm not found in search path<br>
aarch64-apple-darwin-llvm-nm not found in search path</li>
<li>checking for linker for merging objects...<br>
Entering: checking for linker for merging objects<br>
aarch64-apple-darwin-ld not found in search path</li>
</ul>
<div>Maybe the above is connected with the following for
which I will be reporting a bug in the next day or two:</div>
<div><br>
</div>
</div>
<blockquote
style="margin:0px 0px 0px 40px;border-width:medium;border-style:none;border-color:currentcolor;padding:0px">
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large">
<div>configure: WARNING:<br>
There are some differences between the toolchain
configured by "configure" (default.target) and the
toolchain configured by the "ghc-toolchain" program
(default.target.ghc-toolchain).<br>
<br>
16c16<br>
< , tgtCxxCompiler = Cxx {cxxProgram = Program {
prgPath = "g++" , prgFlags = [] }}<br>
---<br>
> , tgtCxxCompiler = Cxx {cxxProgram = Program {
prgPath = "g++" , prgFlags =
["--target=arm64-apple-darwin"] }}<br>
<br>
Don't worry! This won't affect your ghc in any way.<br>
However, in a near future, we will move to configuring
toolchains with "ghc-toolchain" by default, so you might
have discovered a future bug.<br>
In light of it, if you've spotted this difference,
please report a GHC bug at <a
href="https://www.haskell.org/ghc/reportabug"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://www.haskell.org/ghc/reportabug</a></div>
</div>
</blockquote>
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large"><br>
</div>
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large">Thanks
again,</div>
<div class="gmail_default"
style="font-family:"times new roman",serif;font-size:large">George</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Jun 24, 2026 at
7:01 AM Magnus Viernickel via ghc-devs <<a
href="mailto:[email protected]" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">[email protected]</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Dear
GHC users, distributors and devs,<br>
<br>
I'm pleased to announce that the second release candidate
for GHC 9.12.5 <br>
is now available from <a
href="http://downloads.haskell.org" rel="noreferrer"
target="_blank" moz-do-not-send="true">downloads.haskell.org</a>
and on GHCup.<br>
<br>
GHC 9.12.5 is a bug fix release. For a long form
announcement, check out <br>
<a
href="https://discourse.haskell.org/t/ghc-9-12-5-rc2-is-now-available/14313/1"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://discourse.haskell.org/t/ghc-9-12-5-rc2-is-now-available/14313/1</a>.<br>
<br>
Mind that the very important overhaul of the
semaphore-compat library to <br>
v2 is included in this release and that the semaphore
feature will only <br>
start working with cabal-install 3.18 again, which is sadly
a breaking <br>
but necessary change.<br>
<br>
Your testing of the release is much appreciated. Many thanks
to the <br>
nixpkgs and stackage package set distributors for testing
the first <br>
release candidate.<br>
<br>
If you find any issues with the candidate, please open an
issue on the <br>
ghc issue tracker.<br>
<br>
If there are no critical regressions are discovered within
this release <br>
candidate, it will be published in about 2 weeks of time
(the week of 8 <br>
July 2026).<br>
<br>
Best<br>
<br>
Magnus<br>
<br>
_______________________________________________<br>
ghc-devs mailing list -- <a
href="mailto:[email protected]" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">[email protected]</a><br>
To unsubscribe send an email to <a
href="mailto:[email protected]" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">[email protected]</a><br>
</blockquote>
</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre wrap="" class="moz-quote-pre">_______________________________________________
Glasgow-haskell-users mailing list -- <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a>
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