https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112873
--- Comment #23 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
I am going to suggest the following. The wording was confusing around the
functionality of the option vs the intrinsics. Hope this is OK?
@opindex @code{fdec-math}
@item -fdec-math
Obsolete flag. The purpose of this option was to
enable legacy math intrinsics such as COTAN and degree-valued trigonometric
functions (e.g. TAND, ATAND, etc...) for compatibility with older code. This
option is no longer operable. The trigonometric functions are now either
part of Fortran 2023 or GNU extensions.
