Intel: Make explicit Fortran preprocessing under Ninja more robust (!5826) · Merge requests · CMake / CMake

Tell the Fortran compiler to write preprocessor output directly to a file, as we do for the GNU compiler. The previous "redirect stdout" approach could break during ABI detection with some mpif90 wrappers that add version information to stdout when called with -v.

Fixes: #21828 (closed)
Backport: release

Intel: Make explicit Fortran preprocessing under Ninja more robust

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