[RFC PATCH] _gfortran_{ioparm,filename,line} vs. thread-safety

[François-Xavier Coudert]

> There are 3 options:
> 1) it is enough to support -2GB..2GB values for that var; in that
> case it could be handled the same way as logical*8, via a integer*4
> temporary (e.g. do we need unit numbers > 2GB?)
> 2) or the library can use always integer*8 and if source needs
> integer*4, use a temporary
> 3) or, especially for non-INQUIRE variables, we could perhaps support
> both, just by allocating another bit for it in the flags bitmask.

Please note that there are integer*16 variables on some platforms out
there, and we need to do something clever for that too. And of course,
integer*1 and integer*2...

FX