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19f267c75e
The Ninja generator's support for Fortran requires that source files be preprocessed explicitly first. However, the `xlf` compiler does not have a simple `-E` option or equivalent to do preprocessing. The only documented way to get preprocessed output is to use `-d` to leave it behind, but only at an inflexible location. Instead, create our own `cpp` wrapper script and substitute it for the real preprocessor using `-tF -B ...`. Teach the wrapper to map the `cpp` output to the location we need and then invoke the real `cpp` underneath. Fixes: #19450
25 lines
970 B
CMake
25 lines
970 B
CMake
include(Compiler/XL)
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__compiler_xl(Fortran)
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set(CMAKE_Fortran_SUBMODULE_SEP "_")
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set(CMAKE_Fortran_SUBMODULE_EXT ".smod")
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set(CMAKE_Fortran_FORMAT_FIXED_FLAG "-qfixed") # [=<right_margin>]
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set(CMAKE_Fortran_FORMAT_FREE_FLAG "-qfree") # [=f90|ibm]
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set(CMAKE_Fortran_MODDIR_FLAG "-qmoddir=")
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set(CMAKE_Fortran_DEFINE_FLAG "-WF,-D")
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# -qthreaded = Ensures that all optimizations will be thread-safe
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# -qhalt=e = Halt on error messages (rather than just severe errors)
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string(APPEND CMAKE_Fortran_FLAGS_INIT " -qthreaded -qhalt=e")
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# xlf: 1501-214 (W) command option E reserved for future use - ignored
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set(CMAKE_Fortran_CREATE_PREPROCESSED_SOURCE)
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set(CMAKE_Fortran_CREATE_ASSEMBLY_SOURCE)
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set(CMAKE_Fortran_PREPROCESS_SOURCE
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"<CMAKE_Fortran_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -qpreprocess -qnoobject -qsuppress=1517-020 -tF -B \"${CMAKE_CURRENT_LIST_DIR}/XL-Fortran/\" -WF,--cpp,\"${CMAKE_Fortran_XL_CPP}\",--out,<PREPROCESSED_SOURCE> <SOURCE>"
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)
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