[Bug fortran/38122] "file already opened in another unit" error when opening /dev/null or /dev/tty twice

[jvdelisle at verizon dot net]

------- Comment #7 from jvdelisle at verizon dot net  2008-11-15 19:13 -------
Subject: Re:  "file already opened in another unit" error
 when opening /dev/null or /dev/tty twice

> Which OP?  The originator of the c.l.f thread or the originator of
> this bug report.

Originator of this bug report. And what I am trying to say is that the NONMEM 
folks could write their code so that it does not violate the standard and deals 
with any need for multi-threading.
> 
> As Tobias points out, attaching 2 or more unit numbers to the same
> file would open gfortran to race conditions.

Agree, don't attach 2 or more unit numbers to the same file. I have written 
rudimentary multi-tasking and multi-threading code myself even when not 
supported by the OS. Yes, its extra work and most system programmers would 
cringe at the thought of doing that in Fortran. Respectfully, the NONMEM team 
needs to fix their code.

> $0.02


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38122