https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93948
--- Comment #2 from Thomas Henlich <thenlich at gcc dot gnu.org> --- -fall-intrinsics is a nice workaround, but it also enables more than I want. I just find it not intuitive, that -fdec apparently has the same effect as -fall-intrinsics for some intrinsics, but -fdec-math (an option to actually enable some intrinsics) does not. As documented: "-fall-intrinsics This option causes all intrinsic procedures (including the GNU-specific extensions) to be accepted." Just not those which require -fdec or -fdec-math. "-fdec-math Enable legacy math intrinsics such as COTAN and degree-valued trigonometric functions (e.g. TAND, ATAND, etc...) for compatability with older code." Requiring one of -fdec or -fall-intrinsics, if -std is specified. Is redundant in the first case. Any plan for action regarding this option should probably consider the fact that decimal trigonometry functions are on the work list for Fortran 202X, which if passed would leave only COTAN as a non-standard function.
