| Issue |
83270
|
| Summary |
[Flang] Preprocessing lower case .f## file should report on preprocessor directives unless -cpp is given (gfortran compability)
|
| Labels |
flang:frontend,
flang,
flang:semantics
|
| Assignees |
|
| Reporter |
DominikAdamski
|
flang-new silently skips -DMACRO flag if it preprocesses lower case *.f## file unless -cpp flag is given. Proof:
Source file:
```
#ifdef TEST
#define A 1
#else
#define A 0
#endif
program main
print *, A
end program
```
compilation command:
` flang-new -DTEST file.f90`
Output:
```
> ./a.out
0 //Expected output 1, because of -DTEST
```
gfrotran reports that preprocessor macros are not handled:
```
gfortran -DTEST file.f90
1 | #ifdef TEST
| 1
Warning: Illegal preprocessor directive
```
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