<div dir="ltr"><div class="gmail_default" style="font-family:times new roman,serif;font-size:large">Hi</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 get a strange warning on MacOS when I do ./configure:</div><div class="gmail_default" style="font-family:times new roman,serif;font-size:large"><br></div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div class="gmail_default" style="font-family:times new roman,serif;font-size:large">checking Xcode version... xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance</div><div class="gmail_default" style="font-family:times new roman,serif;font-size:large">not found (too old?)</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">I also get a related strange warning when I do a compile:</div><div class="gmail_default" style="font-family:times new roman,serif;font-size:large"><br></div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div class="gmail_default" style="font-family:times new roman,serif;font-size:large">ghc hello.hs</div><div class="gmail_default" style="font-family:times new roman,serif;font-size:large">[1 of 2] Compiling Main ( hello.hs, hello.o ) [Missing object file]</div><div class="gmail_default" style="font-family:times new roman,serif;font-size:large">[2 of 2] Linking hello [Objects changed]</div><div class="gmail_default" style="font-family:times new roman,serif;font-size:large">ld: warning: directory not found for option '-L/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk/usr/lib'</div><div class="gmail_default" style="font-family:times new roman,serif;font-size:large"><br></div></blockquote><font face="times new roman, serif" size="4"><span class="gmail_default" style="font-family:"times new roman",serif;font-size:large">I'm on macOS 13.2.1. I was previously on ghc 9.4.4.</span></font><div><font face="times new roman, serif" size="4"><span class="gmail_default" style="font-family:"times new roman",serif;font-size:large"><br></span></font></div><div><font face="times new roman, serif" size="4"><span class="gmail_default" style="font-family:"times new roman",serif;font-size:large">Thanks</span></font></div><div><font face="times new roman, serif" size="4"><span class="gmail_default" style="font-family:"times new roman",serif;font-size:large">George</span></font></div><div><font face="times new roman, serif" size="4"><span class="gmail_default" style="font-family:"times new roman",serif;font-size:large"> </span><br></font></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Feb 14, 2023 at 9:39 AM Ben Gamari <<a href="mailto:ben@well-typed.com">ben@well-typed.com</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"><br>
The GHC team is very pleased to announce the availability of GHC 9.6.1-alpha3.<br>
As usual, binaries and source distributions are available at<br>
<a href="http://downloads.haskell.org" rel="noreferrer" target="_blank">downloads.haskell.org</a>:<br>
<br>
<a href="https://downloads.haskell.org/ghc/9.6.1-alpha3/" rel="noreferrer" target="_blank">https://downloads.haskell.org/ghc/9.6.1-alpha3/</a><br>
<br>
Beginning with GHC 9.6.1, GHC can be built as a cross-compiler to<br>
WebAssembly and JavaScript. This is an important step towards robust<br>
support for compiling Haskell to the Web, but there are a few caveats to<br>
be aware of in the 9.6 series:<br>
<br>
- Both the Javascript and WebAssembly backends are still at an early<br>
stage of development and are present in this release as a technology preview<br>
<br>
- Using GHC as a cross-compiler is not as easy as we would like it to<br>
be; in particular, there are challenges related to Template Haskell<br>
<br>
- GHC is not yet run-time retargetable; a given GHC binary targets<br>
exactly one platform, and both WebAssembly and JavaScript are considered<br>
platforms for this purpose. Cross-compilers must be built from source by<br>
their users<br>
<br>
We hope to lift all of these limitations in future releases.<br>
<br>
Additionally, 9.6.1 will include:<br>
<br>
- Significant latency improvements in the non-moving garbage collector<br>
<br>
- Efficient runtime support for delimited continuations<br>
<br>
- Improvements in compiler error messages<br>
<br>
- Numerous improvements in the compiler's memory usage<br>
<br>
See the [release notes] for a comprehensive accounting of changes in this<br>
release.<br>
<br>
As always, one can find a [migration guide] to aid in transitioning from older<br>
releases on the GHC Wiki. We have also recently started extending our<br>
release process to cover a wider set of Linux distributions. In<br>
particular, we now offer Rocky 8 and Ubuntu 20.04 binary distributions<br>
which cover RedHat-derivative and distributions using older `glibc`<br>
releases (namely 2.27), respectively.<br>
<br>
Please do give this release a try and open a [ticket] if you see anything<br>
amiss.<br>
<br>
Cheers,<br>
<br>
- Ben<br>
<br>
<br>
[ticket]: <a href="https://gitlab.haskell.org/ghc/ghc/issues/" rel="noreferrer" target="_blank">https://gitlab.haskell.org/ghc/ghc/issues/</a><br>
[migration guide]: <a href="https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.6" rel="noreferrer" target="_blank">https://gitlab.haskell.org/ghc/ghc/-/wikis/migration/9.6</a><br>
[release notes]: <a href="https://downloads.haskell.org/ghc/9.6.1-alpha3/docs/users_guide/9.6.1-notes.html" rel="noreferrer" target="_blank">https://downloads.haskell.org/ghc/9.6.1-alpha3/docs/users_guide/9.6.1-notes.html</a><br>
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</blockquote></div>