[Bug fortran/101762] ICE with "Every subscript of the target specification must be a constant expression"

[anlauf at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101762

--- Comment #4 from anlauf at gcc dot gnu.org ---
Created attachment 52108
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52108&action=edit
Improved patch

The previous patch was too strict.  The attached version does a much better
job, but needs more testing and provides more concise error messages also
for substrings.