Apologies to TUHS - other than please don't think Fortran did not impact UNIX and its peers. We owe that community our jobs, and for creating the market in that we all would build systems and eventually improve.
Note: I'm CCing COFF - you want to continue this...
It's an ill wind that blows a Fortran runtime using the same convention.
Be careful there, weedhopper ... Fortran gave a lot to computing (including UNIX) and frankly still does. I did not write have too much Fortran as a professional (mostly early in my career), but I did spent 50+ years ensuring that the results of the Fortran compiler ran >>really well<< on the systems I built. As a former collegiate of Paul W and I once said, "Any computer executive that does not take Fortran seriously will not have their job very long. It pays our salary."
FWIW: These days, the Intel Fortran compiler (and eventually the LLVM one, which Intel is the primary developer), calls the C/C++ common runtime for support. Most libraries are written in C, C++, (or assembler in some very special cases) - so now it's C that keeps Fortran alive. But "in the beginning" it was all about Fortran because that paid the bills then and still does today.