[FLASH-USERS] Error reading mod file when compiling Sedov example problem

[Sam Blackburn]

Hi FLASH users,

I am using FLASH version 4.8 with MacOS Sonoma 14.7.6. I'm super new to this code, and really the mac terminal in general, so I'm going through the user's guide step by step. I'm at section 2.2, where I set up the Sedov problem with this command in the FLASH4.8 dir:
./setup Sedov -auto -site=sam
Where site=sam because I'm not at any institution so I personalized a makefile for my system. When i run:
cd object
make
It does the compilation for around 30 seconds, and then out of nowhere it throws this:
f951: Fatal Error: Reading module 'iso_c_binding.mod' at line 1 column 1: Unexpected EOF

compilation terminated.

make: *** [Cpp_interface.o] Error 1

I've tried reinstalling gcc with HomeBrew, which didn't fix anything. Then I made a test file that calls iso_c_binding.mod to check for its existence in the FLASH4.8 dir, which did end up working, so I knew it was somewhere. Then I searched for it in Finder, and I realized its a blank file that gets created every time I compile, inside /FLASH4.8/object. So apparently the error arises when it tries to interpret literally nothing. How do I fix this? Please ask if you need more info.

Thank you!
- Sam
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://flash.rochester.edu/pipermail/flash-users/attachments/20250612/ac0932d7/attachment.htm>