https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84924
--- Comment #3 from Seth Johnson <johnsonsr at ornl dot gov> --- That's correct, because those standards include TS 29113 which allows arrays to be referenced. `-std=f2008ts` also works. The problem is that the usage described is valid Fortran 2003 but is marked otherwise. This is like the "const" qualifier raising an error with `gcc -std=c89` but allowing it with `gcc -std=c99`. It's valid with C99, sure, but the feature is allowed in the C89 standard as well.