Merge topic 'LLVMFlang-post-preprocessed' into release-3.26

3f1e58c5b9 LLVMFlang: Fix post-preprocess compile for fixed-form Fortran

Acked-by: Kitware Robot <[email protected]>
Acked-by: Andrzej Warzyński <[email protected]>
Merge-request: !8205

Modules/Compiler/LLVMFlang-Fortran.cmake

@@ -13,3 +13,4 @@ set(CMAKE_Fortran_MODDIR_FLAG "-module-dir")
 
 set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_ON "-cpp")
 set(CMAKE_Fortran_COMPILE_OPTIONS_PREPROCESS_OFF "-nocpp")
+set(CMAKE_Fortran_POSTPROCESS_FLAG "-ffixed-line-length-72")