[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.

[Bahram.shahrooz at uc dot edu via Gcc-bugs]

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'