I recommend using macOS package managers to take care of all this. There’s a whole community of knowledgeable folks who have figured out all these build and install details, and I know that it’s simply a matter of doing this to get a working version of the latest, on either x86_64 or arm64 machines:

sudo port install ghc

That’s using MacPorts. There are other options, but I strongly recommend MacPorts for several reasons, especially for development tools.


On Mar 15, 2023, at 12:04, George Colpitts <george.colpitts@gmail.com> wrote:


Hi Bill

I'm cc'ing GHC dev and GHC users as someone else may have a better answer, catch a mistake I made etc. Please don't delete them.

I believe you have encountered https://gitlab.haskell.org/ghc/ghc/-/issues/21506#note_447206

I believe the way to fix this is to do the following:

rm -fr /usr/local/bin/ghc*
rm -fr /usr/local/lib/ghc*
./configure
sudo xattr -rc .
sudo make install

However I am unsure why you are encountering this as the issue is supposed to have been fixed.

Cheers
George





On Wed, Mar 15, 2023 at 11:21 AM William McEnaney <bill.mcenaney.jr@gmail.com> wrote:
Hi, George,

I got this message when I ran make install with the sudo command. What should I do?

libHSterminfo-0.4.1.5-ghc9.4.4.dylib” can’t be opened because Apple cannot check it for malicious software.


What should I do now?


Thanks.


Bill




On Wed, Mar 15, 2023 at 9:29 AM William McEnaney <bill.mcenaney.jr@gmail.com> wrote:
Hi George,

Thank you for your reply. I forget what I did to install it. But the compiler and other ghc-related programs live in /usr/local/bin. Since I installed the wrong binaries, I changed the directory to /usr/local/bin and tried to empty that directory with rm -rf ghc*.*, but that didn't delete anything. So I wonder whether I'll need to remove those programs before reinstalling ghc.

Thanks for your help, too.

Best,
Bill

On Wed, Mar 15, 2023 at 7:59 AM George Colpitts <george.colpitts@gmail.com> wrote:
Hi Bill

Yes,GHC will run on your new MacBook Air. The cpu in that is Apple Silicon , the aarch64-apple-darwin platform. Older Macs run on Intel chips, the x86_64-apple-darwin platform. 

I'm not sure how you installed the compiler. I believe the standard way is described on https://www.haskell.org/ghcup/. Can you tell us how you installed it?

Thanks 
George

On Wed, Mar 15, 2023 at 8:22 AM Simon Peyton Jones <simon.peytonjones@gmail.com> wrote:
Redirecting this query to ghc-devs.  Can anyone help William?  Thanks!

Will GHC run on my new MacBook Air? After installing the compiler, my laptop said its processor was wrong for the binary distribution I chose. If there is a dmg file for MacOS 12.5.1, please please link your reply to it.

Simon

On Tue, 14 Mar 2023 at 23:33, William McEnaney <bill.mcenaney.jr@gmail.com> wrote:
Dear Dr. Jones,

Will GHC run on my new MacBook Air? After installing the compiler, my laptop said its processor was wrong for the binary distribution I chose. If there is a dmg file for MacOS 12.5.1, please please link your reply to it.

Thanks for your help.

Best,
Bill
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