Bug#949767: arrayfire update fails in configure step

[Gard Spreemann]

Gard Spreemann <gspr at nonempty.org> writes:

> Andreas Tille <tille at debian.org> writes:
>
>> Hi Aaron,
>>
>> On Tue, Apr 27, 2021 at 08:14:10PM -0400, Aaron M. Ucko wrote:
>>> Please try adding a build dependency on libclfft-dev and replacing
>>> src/backend/opencl/CMakeLists.txt's inclusion of build_clFFT with a call
>>> to
>>> 
>>>   find_package(clFFT)
>>> 
>>> > Thanks a lot for your initial hint
>>
>> Thanks again.  I now tried to learn from this and added a similar patch
>> for CLBLast[1] but as you can see in the new log[2] it is not that
>> simple.  I tried to compare the content of
>> libclfft-dev_2.12.2-3.1_amd64.deb and libclblast-dev_1.5.2-1_amd64.deb
>> how the cmake files under /usr/lib/x86_64-linux-gnu/cmake/ are looking
>> like and I need to admit I have no idea why this fails.
>
> This seems to be just a typo on my part. The logs have
>
> ***
> CMake Warning at CMakeModules/build_CLBlast.cmake:8 (find_package):
>   By not providing "FindCLBLast.cmake" in CMAKE_MODULE_PATH this project has
>   asked CMake to find a package configuration file provided by "CLBLast", but
>   CMake did not find one.
>   Could not find a package configuration file provided by "CLBLast" with any
>   of the following names:
>     CLBLastConfig.cmake
>     clblast-config.cmake
>   Add the installation prefix of "CLBLast" to CMAKE_PREFIX_PATH or set
>   "CLBLast_DIR" to a directory containing one of the above files.  If
>   "CLBLast" provides a separate development package or SDK, be sure it has
>   been installed.
> ***
>
> libclblast-dev ships
>
>  /usr/lib/x86_64-linux-gnu/cmake/CLBLast/CLBlastConfig.cmake
>
> Notice that there's both "CLBLast" and "CLBlast" in there! I'll
> investigate.

Looks like an upstream bug; consider the inconsistent capitalization of
the second l in "clblast" online 363 in

 https://salsa.debian.org/gspr/clblast/-/blob/54e86eec37593623a5f692a39d78355043a402ad/CMakeLists.txt#L363

I'll report it upstream and patch src:clblast.


 Best,
 Gard