Hi,
I’m trying to use the gfortran to compile a Makefile. However, the flag options are set for ifort compiler, yet the Makefile could be compiled with gfortran. Now I need to configure the flag options to match the gfortran. I couldn’t find the equivalents of some ifort options in gfortran. Could anyone help me in configuring the flag options? The ifort flag options are:
-fixed
-check
-fp-stack-check
-132
Thank you for any help in advance.
Reza,
Hi @RezaRezaei,
this link can be useful:
you could also try fpm to build your program
https://fpm.fortran-lang.org/en/index.html
Thank you for responding. Unfortunately, I couldn’t find the mentioned option in the links.
you could also compare these two lists of compile options
example:
-fixed → Specifies source files are in fixed format. ifort
-ffixed-form → Specify the layout used by the source file. gfortran
Is there a an overview of commonly used options for commonly used compilers somewhere? Might be a worthwhile community project.
I couldn’t find such a document.
Maybe, a quick reference card that lists the common options between compilers. 
Here is a link that people may find useful.
I found a comparative collection of different compilers options here: