Intel compiler unsupported

[VictorEijkhout]

It looks like you don't support the (relatively) new Intel 1API compiler:

cmake -D CMAKE_INSTALL_PREFIX=/work2/00434/eijkhout/sfml/installation-sfml-2.6.0-clx-intel23                                           -D CMAKE_VERBOSE_MAKEFILE=ON                     -D BUILD_SHARED_LIBS=TRUE                     /work2/00434/eijkhout/sfml/sfml-2.6.0
-- The C compiler identification is IntelLLVM 2023.1.0
-- The CXX compiler identification is IntelLLVM 2023.1.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /opt/intel/oneapi/compiler/2023.1.0/linux/bin/icx - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /opt/intel/oneapi/compiler/2023.1.0/linux/bin/icpx - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at cmake/Config.cmake:134 (message):
  Unsupported compiler

[VictorEijkhout]

Even the Intel classic compiler:

cmake -D CMAKE_INSTALL_PREFIX=/work2/00434/eijkhout/sfml/installation-sfml-2.6.0-clx-intel22                                           -D CMAKE_VERBOSE_MAKEFILE=ON                     -D BUILD_SHARED_LIBS=TRUE                     /work2/00434/eijkhout/sfml/sfml-2.6.0
-- The C compiler identification is Intel 2021.7.0.20220726
-- The CXX compiler identification is Intel 2021.7.0.20220726
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /scratch1/projects/compilers/oneapi_2022.3.0/compiler/latest/linux/bin/intel64/icc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /scratch1/projects/compilers/oneapi_2022.3.0/compiler/latest/linux/bin/intel64/icpc - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at cmake/Config.cmake:134 (message):
  Unsupported compiler

[Bambo-Borris]

As mentioned over on #2582 please provide additional information alongside these issues regarding the environment you're building on.

[ChrisThrasher]

Please comment out line 134 in Config.cmake (the FATAL_ERROR message) and try again. If that works then I can submit a patch to remove that line since I think it may be over constraining the build. You're the first person I've seen try to use any Intel compiler with SFML so I'm not surprised such issues may exist.

[Rosme]

I think we should not prevent generating, but should print a warning saying the Compiler use is not part of the official supported list. To use at your own risk.

[ChrisThrasher]

master...unrecognized-compilers

I wrote up a quick patch to relax this constraint. This will allow users to at least attempt to use the Intel compilers.

[ChrisThrasher]

#2585

I went ahead and made a PR for this since it's worth doing even if it doesn't entirely fix these Intel compiler problems.

[ChrisThrasher]

I think #2585 sufficiently addresses this so I'm going to close this issue. Thanks for the bug report! Please let us know if you run into any more issues using Intel compilers.