Thanks for the quick reply. I mean executable (.exe) FORTRAN programs that were compiled a few months ago and have worked perfectly until three days ago, no longer work. They cannot open files. In addition, new programs, that I compile and link today into executables, do not work. They cannot open files. I use GCC version 5.2.0 to compile and link. I have been using it since September, 2019 and have never changed versions. Alan Vonderohe -----Original Message----- From: jwakely.gcc@xxxxxxxxx <jwakely.gcc@xxxxxxxxx> Sent: Sunday, April 5, 2020 3:53 PM To: ALAN P VONDEROHE <vonderoh@xxxxxxxxxxxxx> Cc: gcc-help@xxxxxxxxxxx Subject: Re: problem with opening files On Sun, 5 Apr 2020 at 20:15, ALAN P VONDEROHE via Gcc-help <gcc-help@xxxxxxxxxxx> wrote: > > Hello, > > All of a sudden, none of my FORTRAN programs can open files. Programs that opened files last week, cannot open them now. Any suggestions? I suggest reading http://www.catb.org/esr/faqs/smart-questions.html and I suggest you provide MUCH more information. Nobody can usefully answer this. Do you mean your code no longer works when it is recompiled? Or binaries that were already compiled just stopped working? Or something else? Are you even using GCC to compile your code? Which version? Did you change the version in the last week?
