ghc and ports that use ghc: ghc: could not execute: ccache /usr/bin/clang

[ryandesign (Ryan Carsten Schmidt)]

pandoc fails to compile. This might not be a pandoc-specific problem but might be general to any port using stack or the haskell_stack portgroup when configureccache yes is set in macports.conf. (The problem doesn't happen if I remove configureccache yes from macports.conf.)

The GHC located at /opt/local/var/macports/build/_Users_rschmidt_macports_macports-ports-svn-trunk-new_textproc_pandoc/pandoc/work/.stack/programs/x86_64-osx/ghc-8.6.5/bin/ghc-8.6.5 failed to compile a sanity check. Please see:

    http://docs.haskellstack.org/en/stable/install_and_upgrade/

for more information. Exception was:
Received ExitFailure 1 when running
Raw command: /opt/local/var/macports/build/_Users_rschmidt_macports_macports-ports-svn-trunk-new_textproc_pandoc/pandoc/work/.stack/programs/x86_64-osx/ghc-8.6.5/bin/ghc-8.6.5 /opt/local/var/macports/build/_Users_rschmidt_macports_macports-ports-svn-trunk-new_textproc_pandoc/pandoc/work/.tmp/stack-sanity-check-77926e2ed3692749/Main.hs -no-user-package-db
Run from: /opt/local/var/macports/build/_Users_rschmidt_macports_macports-ports-svn-trunk-new_textproc_pandoc/pandoc/work/.tmp/stack-sanity-check-77926e2ed3692749/
Standard output:

[1 of 1] Compiling Main             ( /opt/local/var/macports/build/_Users_rschmidt_macports_macports-ports-svn-trunk-new_textproc_pandoc/pandoc/work/.tmp/stack-sanity-check-77926e2ed3692749/Main.hs, /opt/local/var/macports/build/_Users_rschmidt_macports_macports-ports-svn-trunk-new_textproc_pandoc/pandoc/work/.tmp/stack-sanity-check-77926e2ed3692749/Main.o )
Standard error:


<no location info>: error:
    Warning: Couldn't figure out C compiler information!
             Make sure you're using GNU gcc, or clang
ghc: could not execute: ccache /usr/bin/clang

[iEFdev]

There's an update for pandoc:

pandoc seems to have been updated (port version: 2.9.2.1, new version: 2.10.1)

I also mentioned that in #61043

[ryandesign (Ryan Carsten Schmidt)]

I see the same problem with ghc itself when configureccache yes is set in macports.conf; the problem disappears when that setting is removed.

[essandess (Steve Smith)]

I see a working compile of pandoc version 2.10.1 with the latest stack. I'll post a PR.

BTW this is without modifying the default settings for ccache in macports.conf.

[ryandesign (Ryan Carsten Schmidt)]

Yes, I know that it works fine when not using ccache. This bug report is that it does not work when using ccache.

[essandess (Steve Smith)]

In e76db5997f0446f778ccb524ca1de64e52707d7c/macports-ports (master):

pandoc: Update to version 2.10.1

• Fixes #60571

[kencu (Ken)]

not fixed by that commit

[Ionic (Mihai Moldovan)]

Working around this is as easy as adding

configure.ccache no

to the Portfile. Both stack and ghc need this, probably more ports, too.

Properly fixing this is another issue.

[szhorvat (Szabolcs Horvát)]

I just ran into this. Shouldn't this be fixed in the haskell_stack portgroup, possibly with configure.ccache no?

[essandess (Steve Smith)]

Re: ​https://github.com/macports/macports-ports/pull/11441

I do not see this issue on macOS 11—pandoc version 2.14.0.3 builds successfully with ccache.

macOS 11.4 20F71 x86_64 Xcode 12.5.1 12E507

I see that @cjones051073 disabled ccache in port stack: ​https://github.com/macports/macports-ports/commit/ceab9e1424be3914f784d3d0eba53cd4d3a917db#diff-cf93ab709a7a1e022a95a8b2fb855770e3bc2586c0b27dffbf982f668402fc9a

I honestly don't have enough background knowledge of ccache or MacPorts to recommend whether

configure.ccache    no

be included in the portgroup haskell_stack for all such builds.

I'll defer to however @cjones051073, @neverpanic, @ryandesign wish to address this.

[essandess (Steve Smith)]

I propose to simply add

configure.ccache no

to ​https://github.com/macports/macports-ports/blob/master/_resources/port1.0/group/haskell_stack-1.0.tcl

and hope that it resolves this issue and doesn’t break anything.

Any comment before I issue a PR?

[ryandesign (Ryan Carsten Schmidt)]

Fine.

[judaew (Vadym-Valdis Yudaiev)]

Thanks!

[essandess (Steve Smith)]

Please see ​https://github.com/macports/macports-ports/pull/12846.

[essandess (Steve Smith)]

In 0ec889adef6778635edfed52d0f9ef1fbc800926/macports-ports (master):

haskell_stack: Disable ccache

• Fixes: #60571