Fix build issue with ICPC when using CGAL #25843
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The original code was adding "-fp-model strict" to all targets Regardless of the language which led to compilation issues with CMake Project that contained CUDA or C code (untesed with C). Change fp-model strict to fp-model=strict for more compatibility with Wrappers like nvcc. Relevant intel doc: https://www.intel.com/content/www/us/en/docs/cpp-compiler/developer-guide-reference/2021-8/fp-model-fp.html
Marc-Pierre-Barbier
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Asking @jcar87 to take a look at this :) |
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Hi @Marc-Pierre-Barbier. The CGAL project does not officially support the Intel Compiler, but tries to improve the support for non-tested compilers anyway. Should not this fix be contributed upstream, so that it applies also to CGAL versions 6.0 or later? |
I saw the cmake code in the conanfile and thought it came from here, but if it came from upstream then I will create a pr there too. |
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Summary
The original code was adding "-fp-model strict" to all targets Regardless of the language which led to compilation issues with CMake Project that contained CUDA or C code (untesed with C).
Motivation
This issue made my cuda builds fail.
I didn't open an issue, as the work required to create a detailed issue is the same as fixing it directly.
Details
I simply repeated what was already done for other compilers but applied it to intel.
I didn't test on Windows or using older CMAKE <3.3, so be careful with the review.
As the conditions are copied and pasted from the other compilers and the linux & cmake > 3.3 test worked well. I believe it should work.
I also changed "fp-model strict" to "fp-model=strict" for more compatibility with Wrappers like nvcc which can transmit unknown arguments to the underlying compiler.
Relevant intel doc: https://www.intel.com/content/www/us/en/docs/cpp-compiler/developer-guide-reference/2021-8/fp-model-fp.html