[Bug libfortran/74755] libgfortran: build breaks if localtime_r prototype is present, but definition is not

[cesar at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=74755

--- Comment #2 from cesar at gcc dot gnu.org ---
The target is nvptx-none, specifically when it is built as an offloaded target
for OpenACC. Thomas thinks the problem is in newlib rather than gcc though.