[Bug fortran/98701] I compiled a program with gfortran on Mac (Big Sur, version 11.1) and g77 on Windows 10. I get two very different results for identical input files with the results from the one compiled by gfortran being wrong.

[sgk at troutmask dot apl.washington.edu via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98701

--- Comment #10 from Steve Kargl <sgk at troutmask dot apl.washington.edu> ---
On Sat, Jan 16, 2021 at 04:48:09AM +0000, Bahram.shahrooz at uc dot edu wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98701
> 
> --- Comment #9 from Bahram.shahrooz at uc dot edu ---
> Yes, thank you for finding this bug. Things didn't change after changing 
> estart
> to estrt. 
> 
> Sorry, I don't know how to use -freal-init=nan.  I tried to use it like this
> but got an error.
> 
> % gfortran FiberAnalysis.f -freal-init=nan -o FiberAnalysis
> 
> gfortran: error: unrecognized command-line option '-freal-init=nan'
> 

Whoops.  It helps if I spell it right.  -finit-real=nan