[3387] in testers
sgi 8.1.15: f90
daemon@ATHENA.MIT.EDU (cfields@MIT.EDU)
Sat Dec 13 17:13:05 1997
From: cfields@MIT.EDU
To: testers@MIT.EDU
Date: Sat, 13 Dec 1997 17:12:54 EST
System name: boom
Type and version: IP32 8.1.15
Display type: CRM
What were you trying to do?
Compile a fortran program.
What's wrong:
The compiler offers a potentially confusing warning.
athena% f90 hello.f90
WARNING: f90 -32 compilation is not supported, using -n32.
athena%
So what should we do about it?
Nothing, I suspect. alexp reported this to me. Reading the
manual pages, this is effectively all documented. The
Fortran compiler, as it claims, does not support -32.
However, -32 is the default mode for compiling. It's possible
to change the default to -n32 and shut up the Fortran compiler,
but this would change the default for the C compiler as well.
I believe, but do not know, that this would be a bad idea.
Changing the default to -n32 makes it that much more likely
(perhaps totally certain) that binaries built on an O2 would
not run on an Indy (at least until we deploy Irix 6.2), and
I'm assuming that this is a bad thing.
It's entirely possible someone knows better than me about this,
so I'm reporting it.
Please describe any relevant documentation references:
f90(1), cc(1)
