<div dir="ltr"><div class="gmail_default" style=""><font face="times new roman, serif" style="" size="4">Thanks Vanessa, it seems you had the same workaround: " remove and reinstall XCode command-line tools."</font></div><div class="gmail_default" style=""><font face="times new roman, serif" size="4"><br></font></div><div class="gmail_default" style=""><font face="times new roman, serif" size="4">Zubin</font></div><div class="gmail_default" style=""><font face="times new roman, serif" size="4"><br></font></div><div class="gmail_default" style=""><font size="4"><font face="times new roman, serif">What OS were the install tests run on? I'm running on 15.0.1. I think 15.1 is coming at the end of the month around the same time as alpha 2, hopefully 15.1 will be accompanied by a new version of </font><font face="times new roman, serif" style="">XCode command-line tools that resolves these issues.</font></font></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Oct 16, 2024 at 7:58 PM Vanessa McHale <<a href="mailto:vamchale@gmail.com">vamchale@gmail.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"><div dir="auto">I encountered something similar, Apple had been majorly slacking. <br id="m_6125039419768354326lineBreakAtBeginningOfSignature"><div dir="ltr"><br></div><div dir="ltr"><div style="display:block"><div style="display:block"><div style="display:inline-block" role="link"><a style="border-radius:10px;font-family:-apple-system,Helvetica,Arial,sans-serif;display:block;width:228px;overflow:hidden;text-decoration:none" rel="nofollow" href="https://discourse.haskell.org/t/cabal-cant-find-c-headers-for-digest-text-on-mac-sequoia/10422" dir="ltr" role="button" width="228" target="_blank"><table style="table-layout:fixed;border-collapse:collapse;width:228px;background-color:rgb(88,74,126);font-family:-apple-system,Helvetica,Arial,sans-serif" cellpadding="0" cellspacing="0" border="0" width="228"><tbody><tr><td align="center"><img style="width: 228px; height: 228px;" width="228" height="228" alt="89166504e40f4869ea825dd70048017861ec8578.png" src="cid:ii_19297b3abd0f0ae4aa51"></td></tr><tr><td><table bgcolor="#584A7E" cellpadding="0" cellspacing="0" width="228" style="table-layout:fixed;font-family:-apple-system,Helvetica,Arial,sans-serif;background-color:rgb(88,74,126)"><tbody><tr><td style="padding:8px 0px"><div style="max-width:100%;margin:0px 16px;overflow:hidden"><div style="font-weight:500;font-size:12px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://discourse.haskell.org/t/cabal-cant-find-c-headers-for-digest-text-on-mac-sequoia/10422" style="text-decoration:none" target="_blank"><font color="#FFFFFF" style="color:rgb(255,255,255)">Cabal can't find C++ headers for digest/text on Mac (Sequoia)</font></a></div><div style="font-weight:400;font-size:11px;overflow:hidden;text-overflow:ellipsis;text-align:left"><a rel="nofollow" href="https://discourse.haskell.org/t/cabal-cant-find-c-headers-for-digest-text-on-mac-sequoia/10422" style="text-decoration:none" target="_blank"><font color="#FFFFFF" style="color:rgba(235,235,245,0.6)">discourse.haskell.org</font></a></div></div></td></tr></tbody></table></td></tr></tbody></table></a></div></div><br></div></div><div dir="ltr"><br><blockquote type="cite">On Oct 16, 2024, at 3:53 PM, George Colpitts <<a href="mailto:george.colpitts@gmail.com" target="_blank">george.colpitts@gmail.com</a>> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:"times new roman",serif;font-size:large">It worked for me on my M2 mac but only after uninstalling and reinstalling Command Line Tools. </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">Hopefully the problem I had was unique to me. I got an error when I ran ./configure on my M2 mac:</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">checking C++ standard library flavour... actest.cpp:1:10: fatal error: 'iostream' file not found<br> 1 | #include <iostream><br> | ^~~~~~~~~~<br>1 error generated.<br>configure: error: Failed to compile test program<br></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">Following is the complete output I got </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">checking for opt-17... no<br>checking for opt-17.0... no<br>checking for opt17... no<br>checking for opt-16... no<br>checking for opt-16.0... no<br>checking for opt16... no<br>checking for opt-15... no<br>checking for opt-15.0... no<br>checking for opt15... no<br>checking for opt-14... no<br>checking for opt-14.0... no<br>checking for opt14... no<br>checking for opt-13... no<br>checking for opt-13.0... no<br>checking for opt13... no<br>checking for opt... opt<br>checking opt version (18.1.8) is between 13 and 20... yes<br>checking for clang-19... no<br>checking for clang-19.0... no<br>checking for clang19... no<br>checking for clang-18... clang-18<br>checking clang-18 version (18.1.8) is between 13 and 20... yes<br>configure: $CC is not gcc; assuming it's a reasonably new C compiler<br>checking whether CC supports -no-pie... no<br>checking whether CC supports flags passed by GHC when compiling via C... yes<br>checking Setting up CFLAGS, LDFLAGS, IGNORE_LINKER_LD_FLAGS and CPPFLAGS... done<br>checking Setting up CONF_CC_OPTS_STAGE0, CONF_GCC_LINKER_OPTS_STAGE0, CONF_LD_LINKER_OPTS_STAGE0 and CONF_CPP_OPTS_STAGE0... done<br>checking Setting up CONF_CC_OPTS_STAGE1, CONF_GCC_LINKER_OPTS_STAGE1, CONF_LD_LINKER_OPTS_STAGE1 and CONF_CPP_OPTS_STAGE1... done<br>checking Setting up CONF_CC_OPTS_STAGE2, CONF_GCC_LINKER_OPTS_STAGE2, CONF_LD_LINKER_OPTS_STAGE2 and CONF_CPP_OPTS_STAGE2... done<br>checking whether ld64 requires -no_fixup_chains... yes<br>checking whether ld64 requires -no_fixup_chains... yes<br>checking whether ld64 requires -no_fixup_chains... yes<br>checking whether ld64 requires -no_fixup_chains... yes<br>checking whether the linker requires -no_warn_duplicate_libraries... yes<br>checking whether the linker requires -no_warn_duplicate_libraries... yes<br>checking whether the linker requires -no_warn_duplicate_libraries... yes<br>checking whether ld supports response files... yes<br>checking C++ standard library flavour... actest.cpp:1:10: fatal error: 'iostream' file not found<br> 1 | #include <iostream><br> | ^~~~~~~~~~<br>1 error generated.<br>configure: error: Failed to compile test program<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Oct 16, 2024 at 8:51 AM Zubin Duggal <<a href="mailto:zubin@well-typed.com" target="_blank">zubin@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">The GHC developers are very pleased to announce the availability<br>
of the first alpha release of GHC 9.12.1. Binary distributions, source<br>
distributions, and documentation are available at [<a href="http://downloads.haskell.org" rel="noreferrer" target="_blank">downloads.haskell.org</a>][].<br>
<br>
<br>
We hope to have this release available via ghcup shortly.<br>
<br>
GHC 9.12 will bring a number of new features and improvements, including:<br>
<br>
* The new language extension [OrPatterns] allowing you to combine multiple<br>
pattern clauses into one.<br>
<br>
* The [MultilineStrings] language extension to allow you to more easily write<br>
strings spanning multiple lines in your source code.<br>
<br>
* Improvements to the OverloadedRecordDot extension, allowing the built-in<br>
`HasField` class to be used for records with fields of non lifted representations.<br>
<br>
* The [NamedDefaults] language extension has been introduced allowing you to<br>
define defaults for typeclasses other than `Num`.<br>
<br>
* More deterministic object code output, controlled by the `-fobject-determinism`<br>
flag, which improves determinism of builds a lot (though does not fully do so)<br>
at the cost of some compiler performance (1-2%). See #12935 for the details<br>
<br>
* GHC now accepts type syntax in expressions as part of [GHC Proposal #281].<br>
<br>
* ... and many more<br>
<br>
A full accounting of changes can be found in the [release notes][].<br>
As always, GHC's release status, including planned future releases, can<br>
be found on the GHC Wiki [status][].<br>
<br>
We would like to thank GitHub, IOG, the Zw3rk stake pool,<br>
Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, the Haskell<br>
Foundation, and other anonymous contributors whose on-going financial<br>
and in-kind support has facilitated GHC maintenance and release<br>
management over the years. Finally, this release would not have been<br>
possible without the hundreds of open-source contributors whose work<br>
comprise this release.<br>
<br>
As always, do give this release a try and open a [ticket][] if you see<br>
anything amiss.<br>
<br>
<br>
[release notes]: <a href="https://downloads.haskell.org/ghc/9.12.1-alpha1/docs/users_guide/9.12.1-notes.html" rel="noreferrer" target="_blank">https://downloads.haskell.org/ghc/9.12.1-alpha1/docs/users_guide/9.12.1-notes.html</a><br>
[status]: <a href="https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status" rel="noreferrer" target="_blank">https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status</a><br>
[<a href="http://downloads.haskell.org" rel="noreferrer" target="_blank">downloads.haskell.org</a>]: <a href="https://downloads.haskell.org/ghc/9.12.1-alpha1" rel="noreferrer" target="_blank">https://downloads.haskell.org/ghc/9.12.1-alpha1</a><br>
[ticket]: <a href="https://gitlab.haskell.org/ghc/ghc/-/issues/new" rel="noreferrer" target="_blank">https://gitlab.haskell.org/ghc/ghc/-/issues/new</a><br>
[OrPatterns]: <a href="https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0522-or-patterns.rst" rel="noreferrer" target="_blank">https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0522-or-patterns.rst</a><br>
[MultilineStrings]: <a href="https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0569-multiline-strings.rst" rel="noreferrer" target="_blank">https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0569-multiline-strings.rst</a><br>
[GHC Proposal #281]: <a href="https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0281-visible-forall.rst" rel="noreferrer" target="_blank">https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0281-visible-forall.rst</a><br>
[NamedDefaults]: <a href="https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0409-exportable-named-default.rst" rel="noreferrer" target="_blank">https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0409-exportable-named-default.rst</a><br>
<br>
<br>
Cheers,<br>
Zubin<br>
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</blockquote></div>
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