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[Fortran] preprocessor of NAG compiler has limits

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#90 aperta il 30 giu 2025

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Descrizione

Some Fortran codebases actively uses #include preprocessor statements. Usually, it compiles nicely, however, preprocessor of NAG compiler has the following limits:

Item Limits
Maximum INCLUDE file nesting 20
Maximum number of INCLUDE file references per compilation 2047

Then, one needs to adjust codebase to avoid this limitations.

It would be nice to check number of #include preprocessor statements and give warnings if their number exceeds NAG limits.

NAG compiler limits: https://support.nag.com/nagware/np/r72_doc/manual/compiler_2_7.html#LIMITS

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