Re: Packaging cquery

[Efraim Flashner <efraim@flashner.co.il>]

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On Sun, Jan 13, 2019 at 04:24:05AM +0100, brettg@posteo.net wrote:
> Hi all, I am attempting to package cquery.
> 
> Here is my definition
> 
> (define-public cquery
>   (package
>    (name "cquery")
>    (version "20180718")
>    (source (origin
> 	    (method url-fetch)
> 	    (uri (string-append
> "https://github.com/cquery-project/cquery/archive/v"
> 				version ".tar.gz"))

'guix lint cquery' will remind you to use git-fetch =).

> 	    (sha256
> 	     (base32
> 	      "076cavgipn6g37fhvdcq0z915c5lxxa56mbxw9d6njksdxg1wdkj"))))

<snip>

> 
> the configuration seems to fail when cmake attempts to download clang. Does
> anybody know how to get it to ignore this request and use the system clang
> (which I assume is the correct (guix) way to do this.
> 
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Detecting CXX compile features
> -- Detecting CXX compile features - done
> -- Using downloaded Clang
> -- Downloading Clang 6.0.0 (https://releases.llvm.org/6.0.0/clang+llvm-6.0.0-x86_64-linux-gnu-ubuntu-14.04.tar.xz)
> ...
> CMake Error at cmake/DownloadAndExtractClang.cmake:82 (message):
>   SHA256 hash of downloaded Clang does not match expected hash.  Remove the
>   build directory and try running CMake again.  If this keeps happening,
> file
>   an issue to report the problem.
> Call Stack (most recent call first):
>   CMakeLists.txt:96 (download_and_extract_clang)

Checking the source, I suspect you'll find the answer here:
https://github.com/cquery-project/cquery/blob/v20180718/CMakeLists.txt#L11

It looks like we have at least some of the third party libraries already
packaged but I'm not sure how the unbundling process is going to be. I'd
suggest starting with it as-is and working one those later.

-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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