Description
Describe the bug
Using an apostrophe (') in the comments causes the #ifdef to be treated as comments.
Expected behavior
#ifdef should not be treated as a comment.
To Reproduce
TEST.F90
!> @ingroup TEST
!!
!! @brief This user's problem.
!!
MODULE TEST
#ifdef DOXYGEN_FORTRAN
INTERFACE DEF
MODULE PROCEDURE DEFI
MODULE PROCEDURE DEFR
END INTERFACE
#else
INTERFACE NODEF
MODULE PROCEDURE NODEFI
MODULE PROCEDURE NODEFR
END INTERFACE
#endif
CONTAINS
END MODULE TEST
This code will result in both NODEF and DEF being processed, regardless of whether DOXYGEN_FORTRAN is defined.
Version
I used 1.8.14, but I tried 1.9.5, and it has the same issue.
Additional context
The workaround is to use ' instead of (').